454 results about "Ring cutter" patented technology

A device (100) and method (200) for bonding a ribbon wire (104) to a workpiece (106) comprising feeding the ribbon wire through a passageway (116) of an ultrasonic bond capillary (102) and clamping the ribbon wire against an engagement surface (120) of the bond capillary via a clamping jaw (118) operably coupled to the bond capillary. The ribbon wire (104) is bonded to the workpiece (106) along a bonding surface (112) of the bond capillary (102) and penetrated, at least partially, between the bonding surface and the engagement surface (120) of the bond capillary by a cutting tool (124). The cutting tool (124) may comprise an elongate member (126) positioned between the bonding surface (112) and engagement surface (120), and may have a cutting blade (128) positioned at a distal end (130) thereof. The cutting tool (124) may further comprise a ring cutter (132), wherein the ribbon wire passes through a ring (134) having a cutting surface (138) defined about an inner diameter thereof.

A hole cutter machine tool combines the characteristics and properties of a low-cost hole saw with the speed and performance of an annular cutter. The hole cutter comprises a cutter ring portion similar to an end portion of existing annular cutters with a carrier portion similar to the cup of a hole saw. In one embodiment the hole cutter has a threaded aperture which enables use with a standard hole saw arbor or with a replaceable arbor having an annular cutter shank. An embodiment of the method of making the hole saw includes a joining process in which the cutter ring is simultaneously attached to the carrier portion and heat treated.

The invention discloses a system for sampling soil and belongs to the technical field of agriculture agricultural water-soil engineering. The system for sampling soil comprises a sampler and a slot former, wherein the sampler comprises four detachable parts: a cutting ring sleeve, a cutting ring handle, a wire dragging device and a cutting ring; the slot former comprises a T-shaped handle and a rotating soil-cutting device which is fixedly connected to the lower part of the handle; and the rotating soil-cutting device is formed by oppositely welding two S-shaped steel sheets having cutting edges on the peripheries. On the basis of traditional cutting ring, the system for sampling soil provided by the invention is used for realizing the complete soil-cutting through upper and lower parts of the cutting ring, by utilizing an upper soil-cutting wire and a compass dragger to drive a lower soil-cutting wire, thereby avoiding the phenomenon of breaking or sticking soil after taking out the cutting ring and having minimum disturbance to the original soil. By combining with the slot former, the deep soil can be sampled without disturbance. The whole system has simple structure, is conveniently operated and has high sampling efficiency. The invention also discloses a method for sampling soil by using the system.

An electric drill apparatus having a low profile is provided which comprises an annular cutter, a motor for rotating the annular cutter, a rotary shaft assembly for rotating the annular cutter attached to its leading end about a rotating, a rotation reduction mechanism disposed between the motor and rotary shaft assembly for transmitting a driving force of the motor to the annular cutter through the rotary shaft assembly, a feed mechanism responsive to an operation of a manual handle, for moving the rotary shaft assembly along with a straight line to advance or retract the annular cutter attached to the rotary shaft assembly with respect to a workpiece, and an adhesion base for securing the electric drill apparatus to the workpiece. The annular cutter has a plurality of cutting blades comprised of cemented carbide tips fixed on its lower end, thereby it is capable of rotating at a high speed. The rotary shaft assembly has a rotating shaft which rotates in a direction different from that of a rotating shaft of the motor, thereby the drill apparatus has a low profile.

The invention relates to a manufacturing technology of a novel hobbing cutter with a laser cladding WC wear-resistant coating. The manufacturing technology comprises the following steps: (1) manufacturing the hobbing cutter with a forging method, wherein the hobbing cutter is made of alloy steel; (2) carrying out peel removal cleaning treatment on surfaces to be machined of the intertooth space of an alloy cutter; (3) using a transverse flow CO2 laser, taking a numerical control machine tool as a workbench, and carrying out cladding wear-resistant strengthening treatment on the intertooth space of a cutter ring cutter, wherein the thickness of the WC cladding layer is 1.5-2.5mm; (4) carrying out performance detection on a composite coating. A laser surface cladding technology is adopted, and the tissues of a cladding coating mainly consist of carbides and a supersaturated solid solution superfine casting-state structure, wherein spherical tungsten carbide ceramics are of ultra-high hardness and uniformly distributed on a binding phase with extremely high hardness level, and also achieves an inhibition effect on abrasion, and the grinding resistance between hobbing cutter edges can be effectively improved; the binding phase is good in tenacity and high in strength, the formation of cracks can be effectively reduced, and the wear resistance and corrosive resistance of the hobbing cutter is improved, and the service life of the hobbing cutter is prolonged.

The invention discloses a testing device for measuring expansive force of a soil sample in real time and belongs to the technical field of geotechnical engineering measuring instrument manufacturing. The testing device comprises a consolidation apparatus adopting a toughened glass water tank, wherein a retaining ring is arranged on the outer side of an annular hoop arranged on permeable stones; the inner side of the annular hoop is directly and tightly contacted with a cutting ring with the soil sample; thin filter paper is arranged on the upper surface and the lower surface of the soil sample; the permeable stones and a pressurizing cover are placed at the top of the soil sample; the upper part of a rubber cap is tightly contacted with the cutting ring; the lower part of the rubber cap is tightly contacted with the outer side of the consolidation apparatus water tank; a water tank put beside the consolidation apparatus is positioned on an iron stand; the water tank is connected with a water inlet hole of the rubber cap; a vertical force transfer rod with threads is arranged at the middle part of a steel frame cross beam arranged on the outer side of the consolidation apparatus and is contacted with the pressurizing cover; and the consolidation apparatus and the iron stand are respectively arranged on a balance. The expansive force of the soil sample can be measured in real time, an expansive force travel-time curve of the soil sample can be obtained and the vertical deformation of the soil sample can be controlled, so that the volume of the soil sample can be unchanged. The testing device has the advantages of simple and reasonable structure, high testing precision, convenience for operation and easiness for control.

The invention relates to a peeling machine for sugarcanes different in thickness. The peeling machine for the sugarcanes comprises a peeling mechanism and is characterized in that the peeling mechanism comprises a cylindrical spiral milling cutter, a cutter base and a main belt plate. The spiral milling cutter is installed on the cutter base through a cutter shaft in a rotatable mode. The cutter base is installed on one side of the main belt plate in a rotatable mode, the main belt plate is installed on a shaft sleeve in a rotatable mode, and the shaft sleeve is fixedly installed on a shaft sleeve base. An auxiliary peeling piece is fixedly connected to the cutter base, the auxiliary peeling piece and the spiral milling cutter are arranged side by side, the milling cutter is used in cooperation with the auxiliary peeling piece for peeling, the cutter base makes the milling cutter close to the shaft center of the shaft sleeve through a torsion component, and the milling cutter and the main belt plate are driven by a power source to rotate. The peeling machine has the advantages of being stable in structure, convenient to use, thorough in peeling and capable of peeling the sugarcanes different in thickness.

The invention relates to a screw type soil-taking and sample-cutting apparatus. A separable screw device is additionally arranged on a soil-taking cutting ring; the screw device comprises a cutting ring seat top board and a support column perpendicular to and fixedly connected with a pedestal, wherein the cutting ring seat top board is located at the upper part of the support column and is movably connected with the support column through a bolt, the central position of the cutting ring seat top board is provided with a bearing capable of sliding along the cutting ring seat top board, a movable bolt on the bearing is connected with a force applying rod, and the cutting ring is arranged below a force applying plate. During soil sampling, a soil sample is placed on the pedestal of the apparatus, then the blade of the cutting ring is downwardly put on the soil sample, the cutting ring seat top board is pulled upwardly to allow the force applying plate to be rightly placed on the top of the cutting ring, and then the cutting ring seat top board is forcibly pulled upwards to allow the force applying plate to uniformly exert forces on the cutting ring so as to enable the cutting ring to enter into the soil sample. According to the invention, the cutting ring is improved, so the cutting ring can be smoothly pressed into a hard soil sample for sampling by using ordinary manual pushing; and force application is uniform in the whole sampling process, and sampling efficiency and quality are improved.

The invention discloses a wire stripping machine. The wire stripping machine comprises a bottom mounting plate, a ring cutting device and a peeling device; the ring cutting device comprises a ring cutting fixing plate, a first cutter seat, a first ring cutting driving mechanism, a second cutter seat, a second ring cutting driving mechanism, at least one first ring cutter and at least one second ring cutter; the peeling device comprises a peeling fixing plate, a first pneumatic finger, a first peeling drive mechanism, a second pneumatic finger, a second peeling drive mechanism, first peeling cutters and a second peeling cutter. The first ring cutter and the second ring cutter cooperate to cut off the skin of a certain portion of the wire, the first peeling cutter and the second peeling cutter cut into the skin, then the movable ends of the first pneumatic finger and the second pneumatic finger are opened, since the two movable ends of the first pneumatic finger are both provided with the first peeling cutters to achieve that the skin is stirred to two sides for movement to achieve peeling treatment so as to improve the automation of the peeling.

The invention discloses a dual-layer pressure plate instrument for measuring a soil-water characteristic curve, belonging to the field of geotechnical engineering techniques. The dual-layer pressure plate instrument comprises a support base, wherein a pressure chamber is arranged above the support base, an upper-layer ceramic plate base is arranged in the pressure chamber; a pressure chamber upper cover, the upper-layer ceramic plate base and a lower-layer ceramic plate base are connected through a pull rod and a locking nut; a groove is formed in the top of the upper-layer ceramic plate base, a ceramic plate is arranged in the groove, a trough is formed in the upper-layer ceramic plate base below the ceramic plate, a water inlet and a water outlet of the trench are respectively connected with a volume change pipe, a soil sample cutting ring is arranged above the ceramic plate, a metal permeable plate is arranged above an upper-layer soil sample; a groove is formed in the top of the lower-layer ceramic plate base, a ceramic plate is arranged in the groove, a trough is formed in the lower-layer ceramic plate base below the ceramic plate, a water inlet and a water outlet of the trough are respectively connected with a volume change pipe, a soil sample cutting ring is arranged above the ceramic plate; the lower end of a dowel bar is arranged above the metal permeable plate through a through hole in the pressure chamber upper cover, and the pressure chamber is communicated with an air pressure pipeline.

The invention discloses an automatic pineapple processing device and relates to the field of food automation. The automatic pineapple processing device mainly comprises an excircle cutting cutter control screw rod stepper motor, a frame, an upper tightening cover, a camera, an excircle cutter, lower rotation bases, an X-Y moving worktable, an X-direction cutter control stepper motor, a special drilling tool, an upper tightening cover control screw rod stepper motor, rotating wheels, a conveyor belt, a dicing cutter control screw rod stepper motor, a dicing cutter, a water spray device, a storage box, a base rotation motor, a Y-direction cutter control stepper motor and a motor, and is characterized in that the excircle cutting cutter control screw rod stepper motor, the upper tightening cover control screw rod stepper motor, the dicing cutter control screw rod stepper motor and the water spray device are mounted above the frame; the camera and the X-Y moving worktable are mounted in the frame; the conveyor belt is arranged in the middle of the frame; a plurality of rotation bases are mounted on the conveyor belt, and the storage box is mounted below the head of the conveyor belt.

The invention discloses a method of collecting undisturbed soil permeability test soil samples by wax sealing. The method comprises the steps that 1, the soil samples are taken out by whole block, and cutting is conducted on soil samples by using a peeling method, the cutting shape is cylindrical, the diameter of each cylindrical soil sample is less than the inner diameter of sampling ring cutter, the height is greater than the height of the sampling ring cutter; 2, wax sealing is conducted on the periphery of the cylindrical soil samples, the soil samples are sealed by wax into cylindrical shapes, the diameter of each cylindrical soil sample is smaller than the inner diameter of the sampling ring cutter; 3, the inner and outer walls of the ring cutter are evenly coated with Vaseline, the wax shape cylindrical soil samples are evenly cut by the ring cutter, complete permeability test soil samples are formed from outside to inside the ring cutter, the Vaseline, the wax seal layer, and the undisturbed soil samples; 4, experiments are conducted by loading the permeability test soil samples into a permeability apparatus; 5, after the experiments are completed, the permeability coefficient calculation is conducted by replacing the cutting ring area with the actual soil sample area. The method of collecting undisturbed soil permeability test soil samples by wax sealing is simple in experiment, the original permeability performance of the undisturbed soil can be guaranteed, and the method is suitably applied to rigid hard plastic clay or strong weathered mudstone.

The invention provides a mower cutting mechanism, belongs to the garden equipment technical field, and solves the problems in the prior art that an existing mower can easily have blocking problems when a blade is worn; the mower cutting mechanism comprises a machine frame, a fixed cutter, a hobbing cutter and a drive mechanism driving the hobbing cutter to roll; the hobbing cutter comprises a hobbing cutter shaft, tool rests, and a plurality of hobbing blades; the hobbing blade is fixedly provided with a transition ring; the projection of the transition rings along the hobbing cutter shaft axial direction and the projection of the hobbing blades along the hobbing cutter shaft axial direction are respectively in an annular shape, wherein the two projections are concentric and peripheral semidiameters of both are same; the fixed cutter is arranged on the machine frame, can automatically approach to the hobbing cutter through an automatic toolsetting mechanism, and can attach to the blade portion of the hobbing cutter so as to form a shearing edge. The automatic toolsetting mechanism is compact and reasonable in structure, can automatically adjust blade gaps, and the hobbing cutter can contentiously work with no blocking in working process.

The invention discloses a prepuce ring-cutter, which consists of tightening device and balan loop, wherein two or more first flutes are set on the external edge of balan loop, which forms first projection, two or more second projections are formed in the tightening device, which mate the first flute, the second flute is formed in the second projection, which mates the first projection to contain drug liquid in the cavity, the drug injecting channel is opened on the tightening device, which connects cavity.

The invention relates to a lever type soil-sampling ring cutter device. A separable lever device is added on a soil-sampling ring cutter and comprises a movable handle and a supporting column, wherein the supporting column is vertical to the base and is fixedly connected with the base; the movable handle is positioned at the upper part of the supporting column and is movably connected with the supporting column by a bolt; a sleeve capable of sliding along the movable handle is arranged at the middle position of the movable handle; a movable bolt on the sleeve is connected with a force applying rod; and a ring cutter is arranged under a pressure applying plate. When in soil sampling, a soil sample is arranged on the base of the ring cutter device, then an edge of the ring cutter is downwards arranged on the soil sample, the handle is pulled upwards to enable the pressure applying plate to be just arranged on the ring cutter, the movable handle is pulled downwards by force to enable the pressure applying plate to apply pressure uniformly on the ring cutter, so that the ring cutter enters the soil sample. The lever type soil-sampling ring cutter device provided in the invention has the advantages that by the improvement on the ring cutter, the common manual pressing mode can be used, the ring cutter can be smoothly pressed into the hard soil sample for sampling; in the whole sampling process, the force applying is uniform, and the efficiency and the quality of sampling are improved.

The invention provides a ring-knife soil sampler and a use method thereof. The ring-knife soil sampler comprises a sampling head and a handle mechanism, wherein the sampling head comprises a ring-knife fixing cover, a ring-knife, a baffle lock ring, a ring-knife baffle and a fixed base, wherein the ring-knife fixing cover is a cylinder of which both ends and side walls are provided with openings, the ring-knife is connected with the inside of the ring-knife fixing cover; the upper part of the ring-knife fixing cover is a circular ring body which is connected with the lower end of the fixed base; the fixed base is connected with the handle mechanism, the handle mechanism is connected with an external driving motor; the baffle lock ring is sleeved on the circular ring body of the ring-knife fixing cover and rotatably connected with the lower end of the fixed base; the baffle lock ring and the circular ring body are both provided with notches, the notch of the circular ring body and the openings are on the same side; and the ring-knife baffle is arranged at the opening of the side wall of the ring-knife fixing cover, one end of the ring-knife baffle is clamped on the baffle lock ring, and the other end of the ring-knife baffle is connected with the lower end of the ring-knife fixing cover. The ring-knife soil sampler has the advantages of convenience in operation, simpleness, rapidness, convenience and the like.

The invention relates to a loaded expanding test method and a loaded expanding test apparatus. The test method comprises: preparing a sample according to the regulation of a loaded expanding test method, placing the sample into a consolidometer, arranging a water permeable stone plate with a diameter of more than a ring cutter diameter on the upper end surface of the sample, stacking the cover plate of the consolidometer onto the water permeable stone plate, applying a set load P on the sample, and carrying out a loaded expanding test. According to the apparatus, the water permeable stone plate with the diameter of more than the ring cutter diameter is additionally arranged in the existing loaded expanding test apparatus. According to the present invention, the test method is simple, the operation is convenient, the structure is reasonable, and the measured loaded expanding rate of the expanding soil is more consistent with the actual situation by strictly controlling the initial state of the sample; and with the method and the apparatus, the technical problem that the expanding soil moisture expansion deformation capacity can be accurately evaluated in the field is solved, and the method and the apparatus are suitable for engineering application.

The invention relates to a programmable strong hub cap ring cutter, which comprises a clamp part (1), a lathe body (2), a small knife part (3), a big knife part (4) and a control part (5), wherein the lathe body (2) is provided with a main shaft, the clamp part (1) and the control part (5); the main shaft is provided with the small knife part (3) and the big knife part (4), and the programmable strong hub cap ring cutter is characterized in that after automatically clamping a centering hub blank (6), the clamp part (1) automatically turns into the lathe body (2) and rotates rapidly, the big knife part and the small knife part (3) begin to cut the hub blank (6), and the clamp automatically turns out of a machine tool and releases the hub blank (6), thus completing cutting. The programmable strong hub cap ring cutter provided by the invention has the beneficial effect that by adopting digital control for servocontrol, programmable control is realized, and a program can be changed in a short time to meet processing requirements of various products.

The invention relates to a improved prepuce circumcision stapler, which comprise: a balanus base and a cylinder main base, the main base is provided with a ring front end cover whose ring wall is provided with a nail warehouse slot, a suturing nail is paced auxiliarily in the nail warehouse slot; the main base is also set coaxially with a cylindrical top body and a ring cutter which is set coaxially in the top body, the top body is provided with a top pillar, the top pillar is inserted correspondingly into the nail warehouse slot and can make the relative axial slide in the nail warehouse slot., the top pillar drives the suturing nail out the suture and the ring cutter cut the prepuce in circle, a depinning ring comprises a inner ring drum circle and an outreach planar circle, the inner ring drum circle is set into the cylindrical ring cutter auxiliarily, the outreach planar circle extends outward along the inner ring drum circle in the lower part of the front end cover. The device designs the depinning ring structure so that the pain of the patient is reduced.

The invention discloses a preparation method of an undisturbed sample for a laboratory test of mechanical properties of reinforced plant soil. The problem that a common cutting ring can not directly carry out sampling is solved, enhancement of reinforced plant soil on shear strength of in-situ soil body can be better restored in a test, sowing and growth of plants are not hindered, interaction between a plant root system and a soil engineering pad is also not influenced, original-state characteristics of the reinforced plant soil are reserved, and the problem that physical and mechanics parameters of a soil body of the reinforced plant soil can not be directly measured; meanwhile, the preparation method also has the advantages of simplicity in operation, controllable quality, strong repeatability and the like, and relatively accurate quantification on the shear strength of the reinforced plant soil is comprehensively realized.

A ring cutter having a metal ring constructed to be mounted on the finger of a user. A cutting blade is connected to the metal ring. The inner surface of the metal ring is covered by a plastic coating to reduce friction on and prevent irritation of a user's finger during extended periods of use. The plastic coating may be molded on the metal ring to cover the inner and outer surfaces thereof.

A fruit ice cream machine comprises a feeding bin arranged on a machine base, wherein a feeding barrel is communicated with the feeding bin, a stirring cutter is arranged in the feeding bin, a motor arranged in the machine base is connected with a connector of the stirring cutter through a speed reducing mechanism, the stirring cutter comprises a prism-shaped cutter rest, and a stirring blade is embedded into a corner angle of the cutter rest. The cutter rest and the stirring blade divide the feeding bin into more than two stirring cavities. A cross section of the cutter rest is triangular, quadrilateral, pentagonal, hexagonal or polygonal. A press rod is arranged on the feeding barrel. A barrel cover is arranged on the feeding bin. A positioning protrusion is arranged on the barrel cover, a positioning groove is arranged on the cutter seat, the positioning protrusion is inserted into the positioning groove. A discharging port is arranged at the bottom of the feeding bin. The direction of an outlet of the discharging port is opposite to the rotation direction of the stirring cutter. The fruit ice cream machine has the advantages of being simple and reasonable in structure, small in overall size, low in manufacture cost, flexible in operation and high in work efficiency.

The invention relates to a device for testing the salt expansion characteristic of salinized soil, belonging to the technical field of highway construction; the device is applied to the study for the salt expansion characteristic of the salinized soil. The device comprises a water tank, retaining rings, a ring knife, a fixed ring, water permeable stones, a soil sample, a pressurizing upper cover, a guide slot, an upper cover thread hole, water permeable stone thread holes, a dial indicator and soil sample temperature sensors, wherein the lower water permeable stone is arranged at the bottom of the water tank, the soil sample is arranged on the lower water permeable stone, the upper water permeable stone is arranged on the soil sample, and the pressurizing upper cover is arranged on the upper water permeable stone; the ring knife is arranged at the outer side of the soil sample, and the retaining rings are respectively arranged at the outer sides of the water permeable stones; a lead of the upper soil sample temperature sensor passes through the upper cover thread hole and the upper water permeable stone thread hole and is led into the upper surface of the soil sample, and a lead of the lower soil sample temperature sensor passes through the lower water permeable stone thread hole and is led into the lower bottom surface of the soil sample; the upper soil sample temperature sensor and the lower soil sample temperature sensor are respectively used for measuring the temperatures of the upper part and the lower part of the soil sample. The device for testing the salt expansion characteristic of the salinized soil is reasonable in design and convenient and simple to operate, can directly measure the temperature of the soil sample and realize continuous temperature measurement, and is good in measurement stability and effectiveness and high in working efficiency, thus being convenient to popularize and use.

A soil expanding multi-parameter test device capable of simulating the soaking-air-drying cyclic action comprises a water box as well as a water storage tank, a gas-water exchanger and a waste water tank which communicate with the water box, wherein the water box comprises a porous lantern ring arranged at the bottom of the water box and a lower permeable stone arranged in the porous lantern ring, an annular knife is arranged on the lower permeable stone, soil samples are arranged inside the annular knife, upper permeable stones are arranged on the soil samples, porous cover plates are arranged on the upper permeable stones, pressure transfer rods extending out of the porous cover plates penetrate through a winged box cover connected onto the water box, upper pressure plates are arranged at tops of the pressure transfer rods extending out of the porous cover plates, load sensors for testing expansion stress and displacement sensors for measuring expansion deformation are fixed at tops of the upper pressure plates and connected with a resistance strain gauge through cables respectively, and the resistance strain gauge is connected with a computer. With the adoption of the test device, dry-wet cycle operations and related expansion tests of the soil samples can be conducted in the water box directly, tedious manual operations are avoided, the test efficiency is improved, and errors caused by the manual operations are reduced.

The invention discloses a preparation device of a saturated remolded clay cutting ring sample and an application method thereof, which belong to the field of geotechnical test research. The preparation device mainly comprises a sampling cylinder, a cutting ring, a loading mechanism and a water channel. The sampling barrel is a half-and-half cylinder; two cylinder sheets are assembled through a clamp hoop. During a jointing part of the cylinder sheets, a groove is formed in the side face of the cylinder sheet on one side, and a rubber strip is arranged in the groove, so that a joint is ensuredto be impermeable after being jointed. A cutting ring positioning slot is formed in an inner wall of the sampling cylinder and can be used for placing multiple cutting rings; a backing ring is arranged between each two adjacent cutting rings. A drainage hole is formed in the lower part of the sampling cylinder, and is internally and sequentially provided with permeable stones, filter paper, mud, filter paper, permeable stones and a pressurizing plate; the pressurizing plate is provided with a through hole. The sampling cylinder is placed in the water channel, and water covers the sampling cylinder. The loading mechanism utilizes a lever for pressurizing the pressurizing plate. The device can be used for preparing multiple saturated remolded clay cutting ring samples with different sizes atone time, and is fast and high-efficient.

The invention relates to a multi-ring shaver set, which relates to the technical field of rotary shavers and aims at solving the technical problems of weak comfort level and inconvenient maintenance of the prior multi-ring shaver set. The shaver set comprises a centre knife set, at least one ring knife set and a transmission head; each knife set comprises an outer cutting knife and an inner cutting knife. The multi-ring shaver set is characterized by also comprising an elastic frame which is provided with at least one set of elastic arms; the inner cutting knife of the ring knife set is fixedly arranged on corresponding elastic arms and can float up and down along with the elastic arms; the inner cutting knifes and the outer cutting knife of the centre knife set and the elastic frame are coaxially arranged on the transmission head; the outer cutting knife of the ring knife sets is orderly sleeved from inside to outside and then mounted on the outer cutting knife of the centre knife set so that the adjacent outer cutting knives can float up and down. The multi-ring shaver set can improve the shaving comfort level, and is convenient to clean and maintain.

The invention discloses an edge cutting machine for a rubber ring. The edge cutting machine comprises a rack, the rack is provided with an upper arm and a base, a lifting mechanism is arranged on the upper arm, the lower portion of the lifting mechanism is connected with an upper punching head component, and a mould is arranged at the position, below the upper punching head component, on the base. The upper punching head component is composed of a barrel shell, an inner ring cutter, an outer ring cutter and a raised type plug, a connector is arranged at the top of the barrel shell, an inner pipe and an outer pipe which are distributed concentrically are arranged on the lower portion of the barrel shell, a top raised head of the raised type plug is placed in the inner pipe of the barrel shell, and the outer ring cutter is arranged on the lower portion of the raised type plug in a sleeved mode. The inner ring cutter is arranged in the outer ring cutter, the top face of the inner ring cutter abuts against the bottom face of the raised type plug, and the top face of the outer ring cutter abuts against the bottom of the outer pipe of the barrel shell. An electric heating ring is arranged between the inner pipe and the outer pipe, and insulation layers are arranged on the inner side and the outer side of the electric heating ring. The edge cutting machine has the advantages that mounting is convenient, the inner ring cutter and the outer ring cutter are more stable in the edge cutting process, and edge cutting quality is high.

The invention belongs to the field of geosynthetics testing and especiallly relates to a geotextile axial-compression clogging test device and a method thereof. A sample container includes a water tank, a retaining ring, a ring knife, water-permeable boards and a sample cover. The retaining ring, the water-permeable boards and the sample cover are successively placed into the water tank. A deformation measuring device and an axial pressurizing device are in contact with the sample. The ring knife is arranged between the top water-permeable board and the bottom water-permeable board. The axialpressurizing device is connected to the sample cover through a steel ball at the center of the top of the sample cover. The invention has the following beneficial effects: through the axial pressurizing device, water of a soil sample drives soil particles to migrate under the action of pressure so as to cause clogging of geotextile; then, the problem of a traditional gradient ratio method that hydraulic gradient must be provided by the use of an external water source, piezometric level is read and osmotic coefficient is calculated through water percolating capacity, there are errors between piezometric level and actual head, and it is difficult to measure clogging in blockage in low-permeability soil is solved; and the device also can be used for testing clogging characteristics under specific vertical pressure.

The invention provides an energy-absorbing and anti-creeping device, and belongs to the technical field of passive safety of rail trains. The front end of an energy-absorbing pipe is fixed with the inner side of an anti-creeper; a cross guide rod hole is formed in the center of a mounting base; the bottoms of tile-shaped cutter mounting seats are fixed with the mounting base; the tile-shaped cutter mounting seats are fixedly connected with the rear part of a semi-ring cutter by bolts; a semi-dovetail structure of an inside diameter of a rear section of the energy-absorbing pipe is matched with a blade point of the semi-ring cutter; the tail end of the inside diameter of the energy-absorbing pipe clings to an oblique plane of the front end surface of an expansion guide ring; induction grooves and guide rod grooves are formed in an inner wall of the energy-absorbing pipe; the center of the inner side of the anti-creeper is fixed with one end of the guide rod; the other end of the guide rod penetrates through the guide rod hole. The device is mainly used for passive safety of rail trains.