131results about How to "Cause scratches" patented technology

The invention provides a workpiece surface wiping device. An unwinding mechanism, a press roller and a winding mechanism are arranged in sequence in a mutual axial parallel manner. One end of a flexible cleaning object is wound on the unwinding mechanism while the other end of the same is wound on the winding mechanism after being wound on the press roller. A workpiece fixing mechanism is used for fixing a to-be-cleaned workpiece and arranged with the press roller at an interval, so that the flexible cleaning object wound on the press roller is located between the workpiece fixing mechanism and the press roller and clings to the press roller; the workpiece fixing mechanism is arranged movably relatively to the press roller, so that when the to-be-cleaned workpiece is fixed on the workpiece fixing mechanism, a to-be-cleaned surface of the workpiece is in contact with the flexible cleaning object wound on the press roller and moves relatively to the flexible cleaning object so as to contact with the flexible cleaning object wound on the press roller from one end to the other end successively. The invention further provides a workpiece surface wiping method. The workpiece surface wiping device is simple in structure, low in cost, small in occupied area, free of large amount of labor input, high in efficiency, good in cleaning effect and stable in workpiece quality, and can not cause scratch to the workpiece.

The invention belongs to the technical field of materials, and particularly relates to a polishing solution for stainless steel surface machining. The polishing solution is prepared from, by weight, 10-15 parts of modified silicon dioxide pellets, 5-10 parts of metallic oxide, 0.5-1.5 parts of sodium benzoate, 1-3 parts of sodium hexametaphosphate, 3-5 parts of a pH conditioning agent, 5-8 parts of a surface active agent, 2-4 parts of a corrosion inhibitor, 1-3 parts of ethyl silicon oil, 5-10 parts of auxiliaries and the balance deionized water. The prepared polishing solution is easy to prepare, low in cost, good in polishing effect and high in polishing precision and polishing efficiency, and has the advantages of removing oil stain, resisting rust, being easy to clean and non-toxic, doing no harm to human bodies or environment and being suitable for large-scale production.

The invention discloses an automatic floor scrubber. The automatic floor scrubber comprises a basal body, a traveling device, a liquid supply device, a scrubbing device and a liquid absorbing device, wherein the traveling device is arranged on the basal body and used for driving the basal body to move forwards, the liquid supply device is arranged on the basal body and used for spraying cleaning liquid, the scrubbing device is arranged on the basal body and used for scrubbing a to-be-cleaned surface and comprises at least one cloth scrubbing part which is arranged at the bottom of the basal body and can be attached to the to-be-cleaned surface, and the liquid absorbing device is arranged on the basal body and positioned behind the scrubbing device. The automatic floor scrubber has the advantages that the automatic floor scrubber is simple in structure and is capable of achieving scrubbing cleaning automatically without being pushed by a user to move, thereby being lower in labor strength and convenient to use; with the aid of the cloth scrubbing parts, the flat to-be-cleaned surface such as wooden floor and ceramic tile floor can be scrubbed without being scratched, so that scrubbing cleanliness can be improved effectively; the automatic floor scrubber is particularly suitable for families and small commercial tenants and fills the blank of floor scrubbers in the household field.

The invention discloses a pipe joint leakage detector which comprises a helium tank, a stop valve, a buffer tank, a collecting gas bag and a helium mass spectrometer leak detector, wherein an outlet of the helium tank is connected with one end of the stop valve, and the other end of the stop valve is connected with an inlet of the buffer tank; a pressure meter is connected onto the buffer tank; a pipe joint connecting mechanism is arranged at the top of the buffer tank and comprises a connecting flange, a pressing plate, a first gasket and a second gasket; the connecting flange is fixed at the top of the buffer tank; the pressing plate is arranged above the connecting flange; the second gasket is arranged on the lower end surface of the pressing plate; the first gasket is arranged on the upper end surface of the connecting flange; a pipe joint is arranged between the first gasket and the second gasket; through holes are formed in centers of the connecting flange and the first gasket; the pressing plate is fixedly connected with the connecting flange through fastening pieces; the collecting gas bag is arranged outside the possible leaking part of the pipe joint in a sleeving manner; and a suction gun of the helium mass spectrometer leak detector is communicated with the collecting gas bag. The pipe joint leakage detector can detect leakage of the pipe joint and has high detection sensitivity, accuracy and efficiency.

The invention provides a conveying device, and belongs to the technical field of automobile detection equipment. The conveying device comprises a conveying rail and adjusting structures, wherein the conveying rail is provided with a conveying surface used for conveying objects, and the adjusting structures are arranged on the two transverse sides of the conveying rail to form an adjusting channel;and in the process of conveying the objects on the conveying rail, the objects entering the adjusting channel are subjected to transverse adjustment one by one. According to the conveying device, theadjusting structures are arranged on the two transverse sides of the conveying rail, and can be used for transversely adjusting the objects conveyed on the conveying rail in the conveying process, and the adjusting structures are capable of preventing the objects from being blocked when the objects are being transversely adjusted; according to the conveying device, the position of each object does not need to be accurately detected when the position of the object is transversely adjusted, and the time to start the adjusting structures does not need to be judged, so that the whole adjusting process is convenient to adjust, the error rate is low, a wheel hub cannot be pushed slantly, so that the safety is good.

The invention discloses a composite leather fabric and belongs to the technical field of spinning. The composite leather fabric is formed by bonding a leather layer with a cotton fabric layer through a binder; and a PU (Poly Urethane) coating or a PVC (Poly Vinyl Chloride) coating is formed on the surface layer of the leather layer. The cotton fabric layer of the composite fabric cotton layer with the structure, provided by the invention, is fitted with the skin, and is capable of keeping warm, soft and close-fitting, and excellent in hygroscopicity and air permeability; and as the PU coating and the PVC coating is formed on the surface layer of the leather layer, the scratch of leather caused by the external environment is avoided.

The invention provides a workpiece feeding, arranging and direction arranging device and technology for sorting to-be-tidied workpieces. According to the workpiece feeding, arranging and direction arranging device, based on a plurality of stations lowered layer by layer, the gravity action of the to-be-tidied workpieces is utilized, and the multiple stations are sequentially used for conducting corresponding arranging and direction arranging operation. By adoption of the provided workpiece feeding, arranging and direction arranging device and technology, threats to operator safety during existing manual arranging can be avoided, and the problems that a vibration disc is adopted for repeated vibration and friction, product surface scratches are caused, and the quality is not good can be solved. According to the provided workpiece feeding, arranging and direction arranging device and technology, the gravity action of the to-be-tidied workpieces is utilized, the correspondingly-matched stations are matched, accordingly, the arranging and direction arranging operation on the to-be-tidied workpieces is achieved, and the cost of an integral arranging and direction arranging structure canbe lower.

The invention relates to a sawtooth sliding type automatic telescopic honing head, which belongs to the honing head. The sawtooth core rod is located in the honing head casing, the limit screw is fixedly connected with the serrated core rod, the limit screw is slidingly connected with the groove on the honing head casing, the spring is sleeved on the serrated core rod, and the working surface of the bottom plate is installed on the honing head casing In the long groove at the front end, the working surface of the bottom plate adopts a zigzag structure and is supported by three taper slopes. The advantages are: novel structure, long-time grinding, and no drum shape on the working surface. When the feed mechanism of the machine tool returns, the core rod will quickly pull the working surface of the bottom plate back to the original state under the force of the spring, which will not cause scratches or strains on the inner hole of the workpiece.

The invention discloses a valve collet pressure head. The valve collet pressure head comprises a shell, a guide rod and a guide sleeve. The shell is provided with a hollow space. One end of the hollow space is a sealed end, and the other end of the hollow space is an open end. An elastic element is arranged between the guide rod and the hollow space. The guide rod is movably arranged in the hollow space in a sleeving manner. The guide rod is sleeved with the guide sleeve. The guide sleeve is in sliding fit with the guide rod. In the direction of pointing to the sealed end from the open end, the outer diameter of the outer wall of the bottom of the guide sleeve is increased gradually. By the adoption of the valve collet pressure head, mounting of a valve collet can be completed conveniently and fast, and the valve collet can be protected against scratch.

The invention relates to the technical field of deflection measurement, and discloses a mining machinery wheel shaft deflection measurement device which comprises a workbench, a protection box is connected to the front portion of the workbench through bolts, a clamping groove is formed in the front portion of the protection box, and a transmission mechanism is arranged in the protection box. Two supporting blocks are slidably connected to the inner wall of the workbench, motors are connected to the front portions of the supporting blocks through bolts, clamping mechanisms are arranged on the rear portions of the supporting blocks, and a detection mechanism is arranged on the left side of the workbench.Through cooperative use of the transmission mechanism and the supporting blocks, wheel shafts with different lengths can be clamped, so that the clamping mechanism can adapt to axles with different lengths, the application range of the clamping mechanism is widened, the axles can be clamped through the clamping mechanism, the clamping mechanism can adapt to the axles with different diameters and can be reinforced, the application range can be further widened, and the axles with largeweight can be clamped.

The invention discloses a method for processing hollow glass of a lined aluminum plate, which comprises the steps of: selecting a piece of glass, and cutting the glass into glass sheets for edging, cleaning and toughening; placing the glass sheets into a coating chamber for coating; removing edge films of the coated glass sheets, cleaning the same and then putting the same into a sheet-combining chamber; gluing a hollow aluminum frame for the first time, and putting hollow aluminum frame/the same over the glass sheets for positioning; filling the hollow aluminum frame with driers; adhering double sided adhesive tapes along four internal frames of the hollow aluminum frame, and pasting an aluminum plate with the hollow aluminum frame; gluing the hollow aluminum frame for the second time, putting the second piece of coated sheet sequentially into a cleaner, the sheet-combining chamber for positioning, and a sheet presser for combination; drilling a small hole in the upper and lower edgeparts of the hollow aluminum frame, respectively, for inflation; rubberizing the butyl rubber around the hollow aluminum frame for the final sealing. The processing method has the advantages of accurate location for mounting, no scratch on film surfaces and resource saving.

The invention discloses a pull lifting platform for railway rescue, which belongs to the technical field of engineering machinery and solves the defect that inconvenience is caused to normal running on railway as a result of a poor rescue working condition while conventional construction equipment in the prior art has faults on the railway. The pull lifting platform is characterized in that a mainbody structure comprises a platform, wherein a rail, a pull mechanism, a travelling device, a folding supporting leg lifting mechanism and a control system are arranged on the platform; and the control system is separately connected to the pull mechanism, the travelling device and the folding supporting leg lifting mechanism. The pull lifting platform is mainly used for pulling down constructionequipment with faults from the railway.

The invention relates to a PVC decorative sheet drying device. The PVC decorative sheet drying device comprises a substrate, a protective cover and heaters; the protective cover is a cavity of which the bottom is opened; the protective cover is connected to the upper portion of the substrate in a covering manner; a plurality of heaters are arranged inside the cavity of the protective cover; a transporting structure for moving a PVC decorative sheet is arranged inside the substrate; a cooling structure is arranged inside the protective cover; one side of the protective cover is provided with afeeding opening for the PVC decorative sheet to enter the protective cover; and the other side of the protective cover is provided with a discharging opening for the PVC decorative sheet to leave awayfrom the protective cover. The PVC decorative sheet drying device provided by the invention has the beneficial effects that the cooling structure is arranged inside the protective cover so that the PVC decorative sheet can be effectively prevented from being damaged due to baking at a high temperature.

The invention discloses a macroscopic inspection machine capable of automatically positioning and measuring luminance. The macroscopic inspection machine comprises a machine table, support rods, vacuum chucks, clamps and a working table. The machine table and the support rods are used for supporting glass. The vacuum chucks are arranged on the support rods and used for absorbing glass. The clamps are arranged inside of the machine table and used for clamping glass. The working table is used for operating the machine table to operate. The machine table is a frame body made up of a first horizontal plane, a second horizontal plane, a first vertical plane and a second vertical plane. A horizontal ruler is arranged on the first horizontal plane. A vertical ruler is arranged on the first vertical plane. Luminance measuring devices are arranged below the support rods. The macroscopic inspection machine capable of automatically positioning and measuring luminance has following beneficial effects: the macroscopic inspection machine can perform luminance measure and macroscopic false orientation in a safe and rapid manner.

The invention relates to the field of dyeing assistants, in particular to a reactive dyeing assistant for polyester fibers. The reactive dyeing assistant comprises a surfactant, sodium sulfate, a water softener, branched heterogeneous alcohol ether, rare earth chloride, 3-chloro-2-hydroxypropyltrimethyl ammonium chloride and goose feather protein extracted from goose feather. According to the reactive dyeing assistant for the polyester fibers, the degree of dyeing and the degree of fixation of the polyester fibers can be increased effectively by the aid of addition of a small amount of sodium sulfate and cooperation of the goose feather protein, only a small amount of sodium sulfate is added, so that scratching of polyester fiber textiles can be avoided, the quality of polyester fibers in a dyeing process is guaranteed, and the usability is improved; meanwhile, the utilization rate and the dyeing efficiency of a dye can be increased effectively by the aid of the assistant, water used in the dyeing process of unit textile can be reduced, the production cost is reduced, and environmental safety is guaranteed.

The invention discloses a charging gun, and the charging gun comprises: a housing which is provided with an installation cavity and a movable groove communicated with the installation cavity; an electromagnetic lock assembly which is arranged in the mounting cavity, wherein an unlocking hole is formed in the position, corresponding to the movable groove, of the electromagnetic lock assembly; and an unlocking piece which is movably arranged in the movable groove, wherein the end, away from a groove opening of the movable groove, of the unlocking piece is inserted into the unlocking hole, and the unlocking piece moves relative to the movable groove so as to unlock the electromagnetic lock assembly. The invention aims to solve the problems that an emergency unlocking tool of a charging gun isinconvenient to find and easy to lose, and provides the charging gun which has the advantages that an unlocking piece does not shake, loss is prevented, the structure is simple, and the cost is low.

The invention discloses a horizontal continuous casting graphite crystallizer by the aid of a nitrogen protection method, and belongs to the technical field of metallurgical equipment. The horizontal continuous casting graphite crystallizer is used for copper continuous casting equipment and comprises a tubular graphite sleeve, a crystallizing cavity is formed inside the graphite sleeve, an annular groove is milled at the lower end of the graphite sleeve, through holes which are communicated with the crystallizing cavity are drilled on the annular groove, a communicating hole is drilled at the bottom of the graphite sleeve and communicated with the through holes, and a capillary tube is further disposed in the communicating hole and connected to an external nitrogen tube. After the structure is adopted, oxidation of the graphite crystallizer is effectively stopped, and the service life of the graphite crystallizer is prolonged. Besides, air behind a crystallization point of the graphite crystallizer is isolated by nitrogen, a copper billet is effectively prevented from contacting with the air when in crystallization, oxidation of a tube billet is prevented, and accordingly problems that an existing graphite crystallizer is short in service life, the surface of a copper billet is oxidized and has severe convex marks and a copper crystallization effect is poor are solved.

The invention provides a swivel head cover of an electric centrifuge. According to the electric centrifuge frequently used in the laboratory presently, the swivel head cover flies out if the swivel head cover is not screwed tight, and accidents can be caused. The swivel head and the swivel head cover of the existing electric centrifuge are generally connected through threads and have the defect of being poor in sealing effect. The swivel head cover of the electric centrifuge comprises a swivel head cover body (1) connected with a swivel head cover flange (2), the swivel head cover flange is matched with a swivel head flange, and an annular protrusion (4) is arranged on the swivel head cover flange, located on the attachment surface of the swivel head cover flange and the swivel head flange and matched with an annular groove (5) arranged on the swivel head flange. The swivel head cover is applied to ancillary facilities of the electric centrifuge.