141results about How to "Avoid Scratching Situations" patented technology

The invention relates to a fixture for machining of a numerical control electric spark machine tool. The fixture comprises a bottom plate, a clamping device, limiting devices and a cleaning device. The bottom plate is provided with a sliding chute, the sliding chute is internally provided with the clamping device, the front end and the rear end of the clamping device are symmetrically provided with the limiting devices, the limiting devices are installed on the bottom plate, and the rear side of the bottom plate is provided with the cleaning device. The clamping device comprises a first movement mechanism, a second movement mechanism, a rotating mechanism and clamping mechanisms. The clamping mechanisms comprise work round plates, rotating motors, driving gears, driven gears, adjustment pillars, movement plates, fixed clamping plates, telescopic clamping plates and rubber strips. By means of the fixture for machining of the numerical control electric spark machine tool, the problems that in an existing annular workpiece clamping process, work stability is poor, the use range is narrow, adjustment is poor, potential safety hazards exist, and the like can be solved, and the functionof automatically clamping an annular workpiece can be realized.

The invention discloses a roll gap adjusting device of a steel plate-levelling machine and relates to the roll gap adjusting device of steel plate interrupted leveling equipment. The roll gap adjusting device of the steel plate-levelling machine is composed of rollers, a clamp sending device, a centering device, a leveling device and a base seat and characterized in that the clamp sending device and the levelling device are installed on the base seat, the centering device is installed between the clamp sending device and the levelling device, and the rollers are installed inside the clamp sending device and the levelling device. The roll gap adjusting device of the steel plate-levelling machine has the advantages of being novel in structure, easy and convenient to process, convenient to use, capable of improving surface quality of the steel plate, reducing loss of a roll, improving service life of the equipment, saving cost of maintaining and changing and the like. The invention belongs to a novel roll gap adjusting device of the steel plate-levelling machine with integrating economy and practicability together.

The invention discloses a novel anti-tube-drawing hand restraining device with monitoring and alarming functions. The novel anti-tube-drawing hand restraining device comprises a glove body, a controller and an air pump, wherein the controller is mounted in the air pump; a single chip microcomputer is arranged in the controller; a wrist part is arranged at the tail end of the glove body; a fixing belt buckle is arranged on the wrist part; main air bags are arranged in the palm center position of the glove body and the wrist part; and inflation interfaces are mounted on the main air bags on theglove body and the wrist part. The novel anti-tube-drawing hand restraining device with the monitoring and alarming functions is ingenious in structural arrangement and reasonable in layout; the air bags are arranged in the palm center position, and the movement amplitude of the hands of a patient is detected by an acceleration sensor; when the movement amplitude is too large, the single chip microcomputer controls the air pump to be started to inflate the air bags, the air bags are inflated to limit the bending amplitude of fingers of the patient, the condition that the patient scratches frantically is avoided, and the patient is restrained.

The invention discloses a Spanish tile reversing machine which comprises a first framework, a Spanish tile conveying strip and a second framework. A first rotation control assembly is arranged on the first framework, a second rotation control assembly is arranged on the second framework, the first rotation control assembly comprises a first reciprocating traction mechanism and a first rotation lifting mechanism, the first rotation lifting mechanism comprises a first seat, a first cylinder and a first rotation device, the first rotation device comprises a first shaft sleeve and a first rotation shaft, a first pallet is connected to the top of the first rotation shaft, a first friction disc is connected to the bottom of the first rotation shaft, the first framework is provided with a first friction strip which can trigger the first friction disc to rotate, and the second rotation control assembly comprises a second reciprocating traction mechanism and a second rotation lifting mechanism. The Spanish tile reversing machine has the advantages that the Spanish tile reversing machine can drive Spanish tiles to rotate, so that the Spanish tiles can be conveyed on the conveying strip in a staggered manner, scratching of the smooth outer side surfaces of the Spanish tiles in conveying procedures can be prevented, and accordingly the defective rate can be reduced.

The invention belongs to the field of automatic production, and particularly relates to a rotating disc type screw feeder. The rotating disc type screw feeder comprises a frame module which supports the rotating disc type screw feeder, a feeding module which is arranged in the frame module for screening and conveying screws, a power module which is connected to the feeding module and provides a mechanical energy to the feeding module, an automatically controlled control module which performs program setting on the rotating disc type screw feeder, and a material storage module which is connected to the feeding module and stores screws needed to be conveyed by the feeding module, wherein the feeding module is circular disc-shaped and selects and locates screws by virtue of vacuum absorption. The rotating disc type screw feeder provided by the scheme conveys the screws by virtue of vacuum absorption, and meanwhile, an arc-shaped gap is used in the device, so that a condition of material locking likely happening in an existing runner type feeder or scraping on the surfaces of the screws can be avoided.

The invention discloses a test paper clamping and arranging device for an examination. The test paper clamping and arranging device comprises a strip-shaped square plate, a long plate, first spherical magnets, first spherical grooves, second spherical magnets, second spherical grooves, a rectangular groove, a pressing plate, a rubber frame, a movable seat, a connecting rod, a round hole block, around rod, a strip-shaped groove, a reset spring, a rectangular cover and an LED lamp. The test paper clamping and arranging device is reasonable in design, test paper can be clamped conveniently, thewhole test paper can be placed flatly, the situation that because the test paper is clamped and fastened, the test paper cannot be pulled at any time is avoided, and meanwhile, the situation that thetest paper is scraped caused by wind blowing is avoided, the structure function is enhanced, a plurality of stationery can be conveniently and fixedly placed, and the function of illuminating at night is achieved; the first spherical magnets are connected with the first spherical grooves in a rolling mode, and the second spherical magnets are connected with the second spherical grooves in a rolling mode, so that the test paper can be pulled up and down by students, and the situation that because the test paper is clamped and fastened, the test paper cannot be pulled at any time is avoided.

The invention discloses a location grid rack provided with a streamline low pressure drop runner. The location grid rack comprises a plurality of inner strip bands, and an outer strip band, wherein the plurality of inner strip bands intersect with one another, so that a latticed grid structure and a plurality of hollow grid units are formed; the outer strip band is arranged at the periphery of the grid structure in a surrounding way and is fixed together with the inner strip bands; rigid bulges are respectively fixedly arranged on the inner strip bands and extend towards the interiors of the grid units in a convex way; each rigid bulge comprises a plane and a side surface, wherein each plane is contacted with a fuel rod, and each side surface is smoothly connected between the plane and the corresponding inner strip band in a sealing way; a downward corner angle is formed at the lowermost end of each side surface; the at least one pair of rigid bulges which are arranged in an opposite way are arranged in each grid unit. According to the location grid rack, due to the ship-shaped structures of the rigid bulges, an incident flow area and fluid eddies are reduced, the pressure drop is reduced, and the fuel rod is prevented from being scratched. Correspondingly, the invention also discloses a fuel assembly provided with the location grid rack.

The invention discloses an arc hanging type vertical garage. The arc hanging type vertical garage comprises a lower-layer garage body, an upper-layer garage body, an arc lifting device, a driving device, a safety protection system and a walking wheel type vehicle carrying platform. The arc lifting device is installed above the lower-layer garage body. The driving device and the safety protection system are installed at the upper end of the lower-layer garage body. The driving device and the arc lifting device are connected and drive the arc lifting device to conduct arc lifting and falling operation of the upper-layer garage body, and in addition, the swinging condition generated in the movement process of the upper-layer garage body can be controlled. The safety protection system and the driving device are connected so as to prevent out-of-control falling of the upper-layer garage body. The lower end of the lower-layer garage body is provided with the walking wheel type vehicle carrying platform which is used for accurately controlling entering and exiting of vehicles, and a plurality of damping devices are arranged at the lower end of the upper-layer garage body. The arc hanging type vertical garage is reasonable in structural design, entering and exiting of the upper-layer garage body are not affected by the lower-layer garage body, convenience and rapidness are achieved, operation is stable, the probability of rubbing of vehicles is lowered, reversing and turning are not needed, time is saved, efficiency is improved, and the service life is prolonged.

The invention discloses a backlight module which comprises a back plate, a light guide plate, a plurality of optical diaphragms and a clamping device, wherein the light guide plate is arranged in a region surrounded by the edge structures of the back plate; the optical diaphragms are arranged on the light guide plate; the clamping device comprises a supporting part, a clamping piece and a buffer part; the supporting part is bulged out of the back plate; the clamping piece is arranged on the supporting part and extends from the back plate toward the optical diaphragms; and the buffer part is arranged between the clamping piece and the optical diaphragms.

The invention discloses an automatic cloth surface defect detection device. The automatic cloth surface defect detection device comprises a rack, a cloth outlet roller, a cloth winding roller, a platform, an image acquisition mechanism, a driving mechanism and a computer host; a conveying roller set is arranged on the rack, and the conveying roller set conveys cloth from the cloth outlet roller to the cloth winding roller at the other end; the cloth passes through the upper part of the platform which is horizontally arranged; the image acquisition mechanism is arranged on the rack and located above the platform; the image acquisition mechanism is driven by the driving mechanism and can reciprocate in the cloth breadth direction; and the image acquisition mechanism is electrically connected to the computer host. The automatic cloth surface defect detection device and cloth surface defect detection method can be suitable for cloth surface detection with large breadth, the influence caused by cloth conveying shaking is avoided, and the detection accuracy is improved.

The invention relates to the technical field of liquid crystal display module processing accessory devices, in particular to a substrate cutting device for liquid crystal display module production. The occurrence of the phenomenon that an operator is scratched by a cutter during work is avoided, the potential safety hazard is reduced, the practicability is improved, a fixing effect on a light guiding plate is improved, and the cutting accuracy is improved. The substrate cutting device for liquid crystal display module production comprises a cutting table, a support, two groups of electric cylinders, a support plate, a stamping air cylinder, an installation plate, telescopic rods, a piston rod, a cutter, a left fixing plate, a right fixing plate, a protection plate, four groups of guide pillars, four groups of guide sleeves, a central processing unit, a controller, pressing plates, springs and pressure sensors. Left strip-shaped holes and right strip-shaped holes in the vertical direction are formed in the left ends and the right ends of the four groups of guide sleeves; left limiting rods and right limiting rods are arranged on the left sides and the right sides of the top ends ofthe four groups of guide pillars; the four groups of left limiting rods are located in the four groups of left strip-shaped holes; a cutting hole is formed in the middle of the protection plate; and acutting slot is formed in the top end of the cutting table.

The invention relates to an automatic outer surface mulch applicator for color steel plate manufacturing. The automatic outer surface mulch applicator comprises a bottom frame, an air pump, an absorption platform, two sliding supports, limiting rollers, coiling frames, tension devices, a pressing device and a clamping group, wherein the absorption platform is mounted at the upper end of the bottomframe, the air pump is arranged between the absorption platform and the bottom frame, the two sliding supports are mounted at the left end and the right end of the absorption platform, the tension devices are uniformly arranged on the sliding supports, the limiting rollers are connected with the front ends of the two sliding supports, the coiling frames are mounted at the front end of the absorption platform, the pressing device is mounted in the middle of the absorption platform, and the clamping group is arranged at the rear end of the absorption platform. The problems that corresponding molds are required to be changed when color steel plates of different specifications are subjected to film mulching, the left end and the right end of a film are generally drooped on the two sides of the color steel plates and the side end of the film is probably scraped when closing to the middle part due to the sharper side ends of the color steel plates during film mulching can be solved.

The invention discloses a novel plate shearing machine with a flat cutting surface. The novel plate shearing machine comprises a rack, a conveyor, a movable pin, a bearing, a roller, a movable frame,a cutting table, an oil liquid box, a liquid injection port, a driving motor, a cutter, a liquid outlet, a shearing plate, a dust suction machine, a positioning bolt, a positioning hole, universal wheels, an external plug, a fastening bolt, a control panel, a dust removal plate, a stop plate and a supporting frame, wherein the conveyor is arranged at the top of the rack; the shearing plate is arranged at the top of the conveyor; the movable frame is arranged on one side of the shearing plate; the bearing is arranged at the top of the movable frame; the roller is arranged on one side of the bearing; the cutting table is arranged on one side of the roller; the oil liquid box is arranged at the top of the cutting table; the liquid injection port is formed in the top of the oil liquid box; thecutter is arranged on one side of the cutting table; and the dust removal plate is arranged on one side of the cutter. The plate shearing machine is simple to operate, the cutting surface is flat, the cutting effect is good, and the use convenience is greatly improved.

The invention discloses an automatic assembling device for 5G router processing, and relates to the technical field of 5G router processing. The automatic assembling device comprises a bearing assembly and a detection assembly, wherein transfer mechanisms are arranged on two sides of the interior of the bearing assembly, and an assembling assembly is arranged in the middle of the inner side of the bearing assembly. According to the automatic assembling device, through connecting blocks arranged at four corners of the upper end of a protective pressing plate, and connecting sliding blocks and connecting sliding rails connected to the upper ends of the connecting blocks, the protective pressing plate can slide at the lower end of a connecting carrier plate; when the connecting carrier plate descends, the protective pressing plate reaches the upper end of a shell earlier than a screw head, the protective pressing plate is used for pressing the shell and is matched with a hole position formed in the upper end of the protective pressing plate, the position of the hole position corresponds to the position of a threaded hole in the upper end of the shell, so that the stability of the shell in the assembling process is further guaranteed; and when the connecting carrier plate ascends, and the connecting sliding blocks slide to the bottoms of the connecting sliding rails, the protective pressing plate can ascend along with the connecting carrier plate, so that the energy-saving effect is achieved.

The invention discloses an electric water-saving car washing brush. According to the electric water-saving car washing brush, a drive device (200) drives a brush head (100) to rotate around the axis of the brush head (100), the brush head (100) comprises a hollow brush rod (110) and brush bristles (120) arranged on the surface of the hollow brush rod (110), a water pipe (400) axially penetrates through the hollow brush rod (110), one end of the water pipe (400) is connected with a water source, and a plurality of water seepage holes (700) are formed in the rod wall of the hollow brush rod (110) and the pipe wall of the part, in the hollow brush rod (110), of the water pipe (400). The electric water-saving car washing brush is convenient to operate, good in water-saving effect, thorough in cleaning and capable of preventing sand grains from scratching the surface of a car body.

The invention discloses a logistics good sorting device. The device includes a sorting tank body, a sorting chamber is arranged in the sorting tank body, a first conveyer belt, a second conveyer belt,a third conveyer belt, a fourth conveyer belt, and a fifth conveyer belt are arranged on four sides of the sorting tank body, an alignment device is arranged on the second conveyer belt, a handling structure is arranged above one end of the first conveyer belt at a top end of the sorting chamber, and a pushing structure is arranged on the middle of the top end of the sorting chamber. According tothe logistics good sorting device, a storage device is arranged, goods on conveyer belts are pushed through a fixing stop plate so that the goods are located on the middle of the conveyer belts, thestatement of occurrence of scratching between logistics and a conveyer belt fixing rack can be prevented, the device is comparative convenient, coordination between the pushing structure and a rotation device can make sorting more quick and efficient, the statements that the goods directly drop to the rotation device and are damaged are prevented, the conveyer efficiency is guaranteed, and the device is practical.

The invention provides an online feeding mechanism based on industrial machines. The online feeding mechanism comprises a hollow box, an electric telescoping rod, a push plate, a first spring, a middle plate, a sleeve, a roller and a telescoping rod. The middle plate is assembled in the hollow box, the lower end of the electric telescoping rod is fixed to the lower end surface in the hollow box, and the upper end of the electric telescoping rod is installed in the middle of the lower end surface of the middle plate. The upper end of the first spring is installed on the lower end surface of thepush plate, the lower end of the first spring is installed on the upper end surface of the middle plate, and due to the design, the aim that materials are stably pushed by means of the feeding mechanism is achieved; the sleeve is installed on the lower end surface of a top plate, the upper end of the telescoping rod is installed in the sleeve, the lower end of the telescoping rod is provided witha roller base, the roller is installed in the roller base through a rotary shaft, and due to the design, the aim that the materials are protected by means of the feeding mechanism is achieved. The online feeding mechanism is convenient to use, convenient to operate, good in stability and high in reliability.

The invention relates to an automobile accessory cleaning device and an application method thereof. The automobile accessory cleaning device comprises a cleaning barrel, a water supply mechanism is connected to the top of the cleaning barrel, a water outlet pipe is connected belowthe cleaning barrel, a first electromagnetic valve is connected to the water outlet pipe, the bottom of the cleaning barrel is connected with lifting mechanisms, a screen groove is connected on the lifting mechanisms, a feeding port is connectedto the cleaning barrel, the side wall, far away from the feeding port, ofthe screen groove is hinged to the groove bottom of the screen groove, a discharging port is formed in the portion, opposite to a feeding mechanism, of the barrel wall of the cleaning barrel, a sealing door is connected to the discharging port, and an exhaust port is formed in a drying bin. According to the provided automobile accessory cleaning device, in the process of cleaning automobile accessories by the automobile accessory cleaning device, the device is high in cleaning efficiency, good in cleaning effect andfree of damage to workers, and has the functions of achieving environmental protection and full recycling of resources.

The invention discloses a cutting machine tool for machining metal members. The cutting machine tool structurally comprises a machine tool protective outer cover, a member cutting mechanism, a supporting base, an intelligent controller, a protective door board and a dustproof heat dissipation net. The supporting base is of a rectangular structure and is horizontally mounted on the workshop floor,the machine tool protective outer cover is located on the upper part of the supporting base and is tightly close to the supporting base, and the member cutting mechanism is nested in the machine toolprotective outer cover. According to the cutting machine tool, by mounting a self-chip-removal cutting mechanism, in the process of machining groove holes of the metal members, sweeps in the groove holes can be effectively and rapidly discharged, the situation that the metal members are scratched due to friction of the sweeps and the metal members in the groove holes is avoided, and the machiningquality of the metal members is improved; and meanwhile, the cut sweeps can be rapidly cut off, equipment and cutters are prevented from being damaged due to the fact that the cut sweeps are wound onthe periphery of the cutters, parts and clamps, and the cutting production efficiency of the metal members is effectively improved.

The invention discloses a novel emergent midwifery device for gynaecology and obstetrics, and relates to the technical field of medical technology. The device comprises a supporting table; T-shaped sliding grooves are respectively formed in the left side and the right side of the supporting table; and T-shaped sliding plates are slidably and respectively connected in the T-shaped sliding grooves.According to the novel emergent midwifery device for gynaecology and obstetrics; two electric push rods II are controlled to extend or contract through a controller; then connecting shafts I, a sliding block, a sliding groove, a lying plate, a connecting shaft II and a fixing block are utilized to adjust lying posture of a pregnant woman; meanwhile, a motor is driven to rotate through the controller; and then the pregnant woman moves forwards and backwards through a screw rod, a moving seat, the fixing block, a cushion and the lying plate, so that the problems that the pregnant woman needs tomove by herself or needs to be moved by medical staff when the pregnant woman is about to give birth to a child are solved finally; and the pregnant woman lies and sits at a proper position, so that the problem that accidents can occur and pain of the pregnant woman can be increased in a delivery process of a medical staff can be solved.

The invention relates to the technical field of water flow speed measurement, in particular to a device for measuring flowing speeds of different water layers of Yangtze river. The device comprises aflowing speed measurement device, wherein a first interface is arranged on the flowing speed measurement device, the flowing speed measurement device is fixedly arranged on a base below the flowing speed measurement device, a support post is further arranged on the base, a main cross rod and at least one auxiliary cross rod are sequentially arranged at one side of the support post from top to bottom, a clamping ring is arranged at one end, far away from the support post, of the main cross rod, one side of the clamping ring is opened, clamping plates are arranged at two ends of the opening, a plurality of through holes are formed in the clamping plates in parallel, a limitation ring is arranged at one end, far away from the support post, of the auxiliary cross rod, and main rods are arranged in the clamping ring and the limitation ring. The device is simple in structure and is convenient to use, and the problem of relatively difficulty in flowing speed measurement on different water depths in the prior art is effectively solved; and the device is low in construction cost, is simple to install and disassemble and can be used for many times, and more accurate measurement of the waterflowing speed at different depths of the same fracture surface can be achieved.

The invention discloses an auxiliary device for installing an integrated circuit. The auxiliary device comprises a bottom plate, a first mobile clamping block, a first fixed plate, a first threaded rod, a first sliding plate, a second clamping block, a cooling fan, a first clamping block, a threaded installation hole, a second mobile clamping block, a second threaded rod, a second fixed plate, a second sliding plate, support legs, a first fixed post, a clamping groove, a clamping strip, a second square connection post, a second sliding block, a first square connection post, a first sliding block, a spacer, a bearing and a second fixed post. The auxiliary device is novel in concept and simple in structure, a screw is not needed to be used to fix the integrated circuit during installation and fixing of the integrated circuit, and the installation efficiency is relatively high; and moreover, the integrated circuit is also prevented from being scratched by the screw, only four screws are needed to be used when the equipment and an equipment shell are fixed, and unthorough fixing of the device to cause swinging of the integrated circuit is prevented.

The invention relates to an aluminum foil meal box recycling treatment system and treatment method. The method mainly comprises the following procedures of: meal box clamping, paper box fixing, meal box separation, paper box collection, aluminum foil treatment and the like. The used aluminum foil meal box recycling treatment system comprises a fixed base, an electric push rod, a limiting device, first mounting plates and a separating device, wherein the electric push rod is installed at the left side of the upper end of the fixed base through an electric push rod base; the limiting device is arranged in the middle of the upper end of the fixed base; the first mounting plates are symmetrically arranged at the front side and rear side of the upper end of the fixed base; and the separating device is arranged on the first mounting plates. According to the method, the problems that a traditional aluminum foil meal box recycling method is low in efficiency and can cause a potential safety hazard due to the fact that a paper box and an aluminum foil in an aluminum foil meal box are generally separated in a manual mode, the meal box can be partially torn during manual separation, and follow-up treatment is difficult can be solved.

The invention provides a sand casting demolding treatment method. According to the sand casting demolding treatment method, a turnover discharging device is included, and the turnover discharging device comprises a bottom plate, a support frame, a discharging mechanism and a collecting box. The method for carrying out demolding treatment operation by using the turnover discharging device specifically comprises the steps of equipment adjustment, sand box fixing, reciprocating overturning, taking out of a casting and cleaning of the casting. The discharging mechanism comprises an overturning motor, an overturning bracket, a positioning seat, a positioning rod, a vertical plate, a jacking block and a protective branch chain. The protective branch chain comprises a fixing plate, a limiting rod, a connecting screw rod, a rotating plate, a butt-joint screw rod, a transverse stop rod, a longitudinal stop rod and an extrusion frame. After a sand box is fixed on the discharging mechanism, sandis made to continuously fall off from the sand box in a reciprocating overturning mode, in the overturning process, the casting can be protected by the protective branch chain, and the situation thatthe casting is thrown out and is thus scratched is avoided.

The invention relates to the field of material lifting devices, and in particular relates to a material lifting device for building construction. The device comprises a vehicle body, a brake structure, a support structure, a lifting structure, a shielding structure, a mounting structure and a jacking structure. The brake structure is mounted at the bottom end of the vehicle body, so that the vehicle body for lifting materials can conveniently move on the ground, the vehicle body can be fixed, automatic sliding is avoided, operation is convenient and fast, the vehicle body can be supported when the vehicle body needs to be placed through the arrangement of the support structure, a support assembly can be retracted in the process of pushing the vehicle body, so that the situation that the support assembly scrapes the ground in the process of pushing the vehicle body can be avoided, the lifting structure is arranged at one end of the vehicle body, the hanging effect can be achieved when the materials need to be lifted, the lifting structure can be hidden when the materials do not need to be lifted, and the materials are prevented from adhering to the lifting structure to influence the lifting stability.

The invention discloses a portable medicine dispensing device based on clinical pharmacy. The device comprises a machine body, and further comprises a plurality of heat dissipation holes which are respectively and fixedly formed in the rear end of the machine body, a handheld handle obliquely mounted on the rear side of the middle part of the bottom end of the machine body, a driving mechanism arranged in the inner cavity of the machine body, a lower cabin body fixedly mounted at the bottom end of the front side of the machine body, and an upper cabin body arranged at the top end of the lowercabin body in an openable and closable manner through a hinge. According to the portable medicine dispensing device based on clinical pharmacy, the labor intensity of workers is further reduced, a user can hold the device more conveniently, and the device is easy to operate; the requirement on the professional skill level is reduced; meanwhile, the portability is obviously improved; the needle head is prevented from being in contact with an external object, and meanwhile the situation that the medicine bottle falls off or the hand is scratched due to improper force exertion is avoided.

The invention discloses spherical casting drilling equipment which comprises a fixed seat, a connecting frame is fixedly connected to the surface of the fixed seat, a pair of fixed rods are fixedly connected to the surface of the connecting frame, a movable table is slidably arranged on the fixed rods, a rotating shaft is arranged at the bottom of the movable table, and a detachable drill bit is installed at the bottom of the rotating shaft. The surface of the connecting frame is fixedly connected with a pair of limiting plates, the limiting plates are located at the two ends of the fixing rod, one side of the connecting frame is provided with a clamping table, the clamping table is fixedly connected to the surface of the fixing base, and the surface of the clamping table is fixedly connected with a plurality of supporting vertical rods. The surface of a push plate can face one side of an arc-shaped extrusion plate, the arc-shaped extrusion plate can clamp a spherical casting, the surface of the spherical casting can extrude the surface of a movable plate, the movable plate can move, the contact area with the spherical casting can be increased, the clamping force on the casting can be further enhanced, and the stability during punching can be improved.

The invention discloses a bullet-proof glass and a manufacturing method. The bullet-proof glass comprises glass layers, hollow layers and glass fiber mesh layers. The glass layers comprise a first glass layer, a second glass layer and a third glass layer; the glass fiber mesh layers comprise a first glass fiber mesh layer and a second glass fiber mesh layer; the first glass layer, the second glasslayer, the third glass layer, the first glass fiber mesh layer and the second glass fiber mesh layer are arranged alternately; a hollow layer is arranged between each glass layer and each glass fibermesh layer; glue is filled in each hollow layer; a mixed batch of each glass layer is prepared from the following components in percentage by mass: 65.0 to 75.0 percent of SiO2, 13.2 to15.2 percent of CaO, 6.8 to 8.8 percent of BaO, 2.8 to 4.0 percent of Li2O, and 2.4 to 3.6 percent of K2O. According to the bullet-proof glass and the manufacturing method provided by the invention, by adopting a structure with the sequentially and alternately arranged glass layers, glue clamping layers and the glass fiber layers, an impact potential energy of a bullet can be transformed into an elastic potential energy of the glass and a surface energy of fragments, and the impact resistance of the glass is greatly improved.