79results about How to "Stretch smoothly" patented technology

The invention belongs to the technical field of manufacturing of Mini-LED chips, and discloses a plane stretching type Mini-LED chip film expanding device and method capable of correcting errors. A plane stretching type chip film expanding device capable of correcting errors comprises a first film expanding mechanism, a second film expanding mechanism, a film pressing frame, a scanning camera and an error correcting mechanism. A first film expanding mechanism and a second film expanding mechanism are adopted for integrally stretching a blue film, then a scanning camera detects the position of a chip on the blue film, a correction disc is adsorbed through an adsorption through hole to locally fix the part, without deviation, of the chip in the blue film, and then the part, with deviation and without fixation, of the chip in the blue film is jacked up through a marble; the blue film is locally expanded, so that the position of the chip on the blue film is corrected, the position of the chip is accurately adjusted, and the problems that a conventional film expanding device cannot randomly adjust the local stretching amount of the blue film and cannot correct the position deviation of the local chip are solved.

The utility model relates to the technical field of breaking accessories, in particular to a breaking hammer damping rod which comprises a breaking hammer and a drill rod connected to the top of the breaking hammer, and a top sliding seat is installed in the drill rod in a sliding mode. The first groove and the second groove are formed in the drill rod, and the reset spring and the steel column are installed in the first groove and the second groove, so that an effective vibration reduction mechanism is formed. When the breaking hammer is impacted, the steel column can slide in the first groove, meanwhile, the reset spring is compressed, impact energy is absorbed through elastic deformation of the spring, and the damping effect is further enhanced through the arrangement of the hard spring. The top sliding seat is wound on the outer wall of the steel column in the second groove, and the top and the bottom of the top sliding seat are fixedly connected with the bottom of the second groove respectively. When the top sliding seat slides in the drill rod, the hard spring deforms, so that more impact energy is absorbed, and vibration transmitted to the breaking hammer is further reduced.

The invention relates to stretching equipment for industrial yarn production, which comprises a fixed base, the top of the fixed base is fixedly provided with a test frame, the right side of the top of the fixed base is fixedly provided with a first mounting frame, the right end of the front surface of the first mounting frame is rotatably connected with a swing seat, and the front surface of the swing seat is rotatably connected with an unwinding rotating shaft; a testing winding drum is fixedly mounted on the outer side of the unwinding rotating shaft, and an unwinding mechanism is fixedly mounted on the front face of the first mounting frame and located on the left side of the testing winding drum. The device has the advantages that the fixing effect on industrial yarn can be guaranteed, tows are smoother in the stretching process, the testing precision and accuracy are improved, friction can be reduced, stress concentration is avoided, the fracture risk in the testing process is reduced, the device is protected, the testing reliability is improved, and the testing efficiency is improved. And the industrial yarn can be stably released for multi-section testing, so that the testing precision and accuracy are further improved.

The invention provides a test device and a test method for realizing uniform tensile loading of a stiffened wallboard, the test device comprises a first clamp, a second clamp and a third clamp, the first clamp is located below a wallboard skin, the second clamp is located above the wallboard skin, the first clamp and the second clamp are in contact with the lower surface and the upper surface of the wallboard skin, and the third clamp is in contact with the lower surface and the upper surface of the wallboard skin. The wall plate skin is jointly clamped; the first clamp and the second clamp are simultaneously and directly connected with a testing machine; the second clamp is connected with the third clamp, and the third clamp is connected with the second clamp and the stiffened strip so that the load can be transmitted to the stiffened strip. The test method comprises the following steps: the support is provided with the stiffened wall plate; assembling the test device and the stiffened wall plate; the clamps and the stiffened wall plates are installed on a testing machine; and applying a load by the testing machine, and measuring the ultimate strength of the stiffened wallboard. According to the invention, the stiffened strip and the wallboard skin are directly connected with the testing machine through the clamp, so that the wallboard skin and the stiffened strip are uniformly loaded, overall uniform stretching is realized, and the stiffened wallboard is prevented from being broken at the root of the clamp firstly.

The utility model discloses a kind of welding strip stretching devices, including guide seat and multiple clamping structures, multiple clamping structures are evenly spaced clamped on welding strip, and multiple clamping structures are all slidably connected with guide seat;Multiple clamping structures are suitable for moving in the same direction under external force, and the distance of each clamping structure relative to guide seat is an arithmetic sequence.The tolerance between the adjacent two numbers in the arithmetic sequence is a constant value, that is, the distance of each clamping structure is a constant value, because multiple clamping structures are evenly spaced distributed on welding strip, so the stretching of each part on welding strip is the same, thereby realizing the uniform stretching of each part of welding strip.

The invention relates to the technical field of interphones, and discloses a high-strength anti-falling interphone, which comprises an interphone, the storage cavity is arranged on the interphone; the antenna part is arranged on the accommodating cavity, an antenna connecting seat is arranged in the accommodating cavity, and the antenna part is inserted into the antenna connecting seat; according to the application, the antenna part can be conveniently extended when the interphone is used, stable transmission of signals is ensured, the antenna part can be automatically retracted when the interphone falls or is impacted by external force, the antenna is prevented from being damaged, and the anti-falling capability and durability of the interphone are improved. Due to the telescopic and self-protection design, the antenna improves the functionality of the interphone, and meanwhile, the safety and long-term reliability of equipment are taken into account. Compared with the traditional antenna design, the design effectively solves the problem that the antenna is easy to damage, and ensures that the interphone can still keep good working performance under the conditions of daily use, extreme drop and the like especially in a high-strength use environment.

The invention discloses a lower discharging foaming device which comprises a movable base, a lower discharging foaming device, a lower discharging foaming device and an upper discharging foaming device, and a walking wheel set is arranged at the bottom of the movable base; the vertical bracket is fixedly mounted on the movable base; the variable-length flow guide mechanism comprises a flow guide channel which is arranged in an inclined mode and is telescopic in length, and the higher end of the flow guide channel is connected with the upper portion of the vertical support; the length adjusting driving mechanism is mounted on the vertical bracket, is in transmission connection with the movable part of the length-variable flow guide mechanism, and is used for driving the movable part to move so as to change the effective length of the flow guide channel; and the buffer mechanism is arranged in the groove of the flow guide groove channel and is used for providing damping buffer when the foaming profile slides down along the groove.

The utility model discloses an EVA (Ethylene Vinyl Acetate) adhesive film processing and drawing device which comprises two side plates which are symmetrically arranged left and right, a heat preservation box is fixedly connected between the two side plates, a main motor and a refrigeration box are fixedly connected on the right side wall of the side plate on the right side, a winding roller is rotatably connected between the two side plates, and the main motor and the refrigeration box are fixedly connected on the right side wall of the side plate on the right side. A cooling assembly is arranged between the two side plates and comprises an air pipe and a spray head, the air pipe is fixedly connected with the side plates on the two sides, and the spray head is fixedly connected to the circumferential face of the air pipe. By arranging the heat preservation box, the heating plate, the temperature sensor, the lower guide roller, the drawing rod, the sliding block, the pressure sensor, the electric rod, the upper guide roller and the sliding groove, heat preservation can be conducted on a machined EVA adhesive film, good ductility is kept, the EVA adhesive film can be stretched more evenly and more accurately through a follow-up drawing device, and the stretching precision and the stretching effect are improved.

The utility model belongs to the technical field of magnetic door lock, specifically a kind of magnetic door lock, including lock body, lock tongue, door handle handle, interlocking plate, operating handle and lock box, lock tongue and door handle handle are movably arranged in box body, door handle handle is provided with abutting portion and pushing portion, and the unlocking slot on lock tongue is cooperated to make lock tongue retractable, first positioning column, second positioning column are equipped in box body, torsional spring two ends are respectively abutted abutting portion and second positioning column, adjusting mechanism is also equipped in box body, including screw rod, adjusting screw, abutting plate and arc slide groove, rotating adjusting screw can be through screw rod and abutting plate to push second positioning column to slide in arc slide groove, adjust torsional spring elastic potential energy, interlocking plate is equipped with locking portion and unlocking portion, the control rod of operating handle and the abutment of two can control interlocking plate to move, realize the locking or unlocking of door handle handle, the utility model adjusts torsional spring elastic potential energy through adjusting mechanism, solve traditional door lock torsional spring fatigue problem, prolong service life, improve operating stability and product reliability.

The utility model discloses a film expanding device, and belongs to the technical field of semiconductors. The film expanding device comprises a workbench and a film expanding assembly, the workbench comprises a first plate, the film expanding assembly comprises a lifting driving module, a lifting frame, a pressing ring and a blocking ring, the blocking ring and the lifting driving module are both arranged on the first plate, and the lifting frame is in transmission connection with the lifting driving module; the projection of the lifting frame in the vertical direction is located on the peripheral side of the projection of the blocking ring, the lifting driving module is used for driving the lifting frame to move in the vertical direction, the pressing ring is fixedly arranged on the lifting frame, and the outer contour projection of the blocking ring in the vertical direction is located in the inner contour projection of the pressing ring. The side, facing the first plate, of the pressing ring is used for installing an adhesive film bonded with a chip. According to the utility model, the stretching efficiency of the adhesive film is improved, the uniform stress of the adhesive film is ensured, and the subsequent chip can be conveniently and quickly taken.

The invention belongs to the technical field of printing equipment, and particularly relates to ink-jet printing equipment which is characterized in that the ink-jet printing equipment comprises a stretching mechanism, a plurality of vertical frames are fixedly arranged at the bottom of the stretching mechanism, and the stretching mechanism is used for tensioning and stretching a printing stock for ink-jet printing; and the driving mechanisms are arranged on the two sides of the stretching mechanism, and the driving mechanisms are used for providing power for the action of the stretching mechanism and conveying, pressing and positioning the printing stock. The weights of structures such as side rod blocks are vertically downward, so that the surfaces of the deflection cylinders extrude a printing stock to be tensioned, the tension of a plurality of tension springs acts on a surrounding cylinder to drive the structures such as two groups of middle rods, the deflection cylinders, an inner surrounding disc and an outer surrounding disc to rotate by taking the axial direction of the middle rods as the center, the printing stock is tensioned on the surfaces of the four deflection cylinders, and the printing stock is tensioned on the surfaces of the four deflection cylinders. And the printing stock is tensioned through triple tension generated by multiple structures, so that the advantage of clear printing is achieved.

The utility model discloses an engineering geology measuring device which comprises a telescopic cylinder, a telescopic rod is installed at the bottom opening of the telescopic cylinder in a sliding mode, scale marks are arranged on the outer side of the telescopic cylinder and the outer side of the telescopic rod, and a power distribution box is installed at the bottom end of the telescopic rod. The rectangular box is fixedly installed at the bottom end of the power distribution box, side holes are formed in the two sides of the rectangular box, and the length of the rectangular box is preset to be 20 cm; the detection mechanism is arranged in the rectangular box and matched with the two side holes, the outer side of the telescopic cylinder is sleeved with a handle sleeve, the top of the telescopic cylinder is fixedly provided with a handle ring, a control chip and a battery are arranged in the distribution box, the control chip and the battery are connected with a connecting wire, and the connecting wire is connected with a display controller. According to the device, through depth integration innovation of machinery-electronics-algorithm, the widths of cracks with different depths can be measured, and the use requirements can be met.

The utility model relates to the technical field of PET film processing equipment, in particular to a PET film two-way stretching device which comprises an unwinding assembly, a winding assembly, an auxiliary assembly, a heating box, a cooling assembly and a stretching assembly, and the unwinding assembly, the auxiliary assembly, the heating box, the cooling assembly and the winding assembly are sequentially arranged from right to left. A feeding port and a discharging port which are used for inputting and outputting a film are formed in the two ends of the heating box respectively, the stretching assembly is arranged in the heating box, a heating assembly used for heating the film is further arranged in the heating box, and the cooling assembly is used for reducing the temperature of the stretched film. The film stretching device has the effects of improving the problem that the stretching effect of the middle position is poor during two-way stretching of the film and improving the stretching quality of the film.

An object is to provide a film having a relatively high tensile modulus of elasticity (Young's modulus) in both a MD direction and a TD direction, having a relatively low heat shrinkage rate in the TD direction, and having relatively excellent uniform stretchability in the TD direction during production. The film contains a propylene-based polymer or a propylene-based polymer composition and satisfies an inequality (I) below and the like. -0.35 < BOMD - BOTD < 1.00 (I) -0.35 < BOMD - BOTD < 1.00 (I) (In the inequality, BOMD represents a degree of orientation in a MD direction of the film measured using a birefringence method, and BOTD represents a degree of orientation in a TD direction of the film measured using the birefringence method.)

The present application discloses a heat-sealable BOPP film for cigarettes and a preparation method thereof, and relates to the technical field of BOPP film. Specifically, the film is prepared by direct co-extrusion of a three-layer structure of an outer layer, an interlayer and an inner layer. The raw materials include: polypropylene, propylene-ethylene copolymer, ethylene-methyl acrylate copolymer, crystalline tourmaline powder, 1,6-hexanediol diglycidyl ether, a mixture of trimethylsiloxyamino-terminated polydimethylsiloxane and hydroxyl-terminated methyl-3,3,3-trifluoropropyl polysiloxane, and polytetrafluoroethylene etched polyethylene wax powder. The etched crystalline tourmaline powder is prepared by etching crystalline tourmaline powder; the particle size of the crystalline tourmaline powder is 20-100nm; the thickness of the outer layer and the inner layer is 0.8-1.2μm, and the thickness of the interlayer is 18-22μm; the mechanical properties and thermal stability of the film can be improved; and the optical properties of the film are optimized by using nano-scale crystalline tourmaline powder.

This utility model discloses a trench support device for municipal pipelines, relating to the field of municipal construction technology, including a baffle assembly, a cross brace assembly, and a protective cover. The cross brace assembly includes a sleeve and a telescopic rod. The protective cover includes an N-shaped plate and a snap-fit ​​vertical plate; the N-shaped plate can be adapted to snap onto the outer periphery of the sleeve, and the snap-fit ​​vertical plate can be adapted to snap onto the outer surface of the telescopic rod. The protective cover also includes a first rotating base plate and a second rotating base plate; the protective cover also includes a counterweight strip and a magnetic strip; one end of the first rotating base plate is rotatably connected to the bottom end of the first vertical plate, and the other end is fixedly connected to the magnetic strip; one end of the second rotating base plate is rotatably connected to the bottom end of the second vertical plate, and the other end is fixedly connected to the counterweight strip; the magnetic strip and the counterweight strip can attract each other to fit together to seal the bottom of the inner cavity of the protective cover. In this utility model, by fastening the protective cover to the outer periphery of the cross brace assembly, splashed sticky impurities will adhere to the protective cover rather than the telescopic rod, thus enabling the telescopic rod to extend and retract smoothly.

The utility model relates to a traditional Chinese medicine dressing low-pressure permeation device for orthopedics department staged treatment, which belongs to the technical field of orthopedics department treatment and comprises a shell, the interior of the shell is hollow, and a flexible fixing film for fixing traditional Chinese medicine dressing is arranged on one side, close to the skin, of the shell. The shell is further provided with a pressure suction assembly used for extracting air in the shell. The application has the effect of reducing the influence of short application time, low frequency and improper use method on the effect of the traditional Chinese medicine dressing.

The present invention relates to the technical field of agricultural irrigation. The present invention discloses an agricultural irrigation machine with adjustable nozzle flow, including a driving seat and an unmanned aerial vehicle. A winding drum is fixed on the outer side of the rotating drum, a connecting soft path is wound around the outer side of the winding drum, the head end of the connecting soft path passes through the winding drum and the rotating drum and is rotatably connected to a pumping pipeline, the head end of the pumping pipeline is fixed with a liquid pump, the liquid pump is fixed to the bottom of the liquid storage chamber, a support leg and a spraying mechanism are fixed to the bottom of the unmanned aerial vehicle, the spraying mechanism extends into a through hole, and the end of the connecting soft path passes through the driving mechanism and is connected to the spraying mechanism. The agricultural irrigation machine with adjustable nozzle flow has a liquid storage chamber set on the ground, people can add irrigation liquid to the liquid storage chamber at any time, without repeatedly docking the unmanned aerial vehicle to add irrigation liquid, so that the entire irrigation operation is continuous and efficient, and all water retaining beads can move up and down with the movable plate, which is convenient for adjusting the size of the spray hole, thereby realizing flow control.

The utility model discloses a metal surface treatment is with self -cleaning type cleaning spray gun relates to spray gun technical field. A metal surface treatment is with self -cleaning type cleaning spray gun, including metal piece cleaning box, the top of metal piece cleaning box is provided with through groove, spray gun cleaning structure, spray gun cleaning structure is located on metal piece cleaning box, and spray gun cleaning structure includes water supply hose, cleaning spray gun main part, spray gun head, outer thread ring no.

This invention provides a method for storing lifting wire harnesses, in which the wire harnesses are arranged in a wave shape inside the clamp of the scissor unit, allowing longer wire harnesses to be stored on the scissor unit. At the same time, the extension or retraction of the scissor unit is controlled by a lifting mechanism, so that the wire harness can freely unfold or retract along with the scissor unit during lifting. This saves space occupied by the wire harness and makes the wire harness adapt to the lifting process of the lifting mechanism, avoiding safety problems caused by the wire harness being pulled during lifting.

The utility model relates to the field of diaphragms, in particular to a preparation device of a high-temperature laminated prestretching diaphragm. The utility model provides a preparation device for a high-temperature laminated pre-stretched diaphragm. The preparation device comprises a frame, a first roller shaft, a compression roller, a motor, a mounting frame, an air cylinder and the like, first roll shafts are symmetrically installed on the two sides of the frame, pressing rollers are symmetrically arranged on the inner side of the frame in a sliding mode, motors are symmetrically installed on the side faces of the frame, output shafts of the motors are connected to the first roll shafts through couplers, an air cylinder is installed at the bottom of the frame, and an installation frame is arranged on a piston of the air cylinder. A motor drives a first roll shaft to rotate, a diaphragm is pushed into a frame, a compression roller is pushed downwards, the compression roller compresses the diaphragm, an air cylinder works, a second roll shaft is pushed to move upwards, the second roll shaft jacks the diaphragm upwards, the stretching effect is achieved, the motor works to drive a threaded rod to rotate, the threaded rod pushes the second roll shaft to move, and the second roll shaft moves to jack the diaphragm upwards. And the uniform stretching effect is achieved.

The utility model discloses a double-rack linkage stretching mechanism which comprises an upper forming die and a lower forming die which are matched with each other, die cores capable of moving up and down are respectively arranged in the upper forming die and the lower forming die, the upper forming die and the lower forming die are respectively provided with a forming die mounting movable plate, and the movable plates are respectively provided with a guide pillar and a lifting driving structure. The device is characterized in that two rack mounting seats are symmetrically arranged on the movable plate, stretching racks are arranged on the rack mounting seats in a lifting and sliding mode, the stretching racks are provided with upper and lower guide sleeves in a matched mode, gears are meshed with the middles of the stretching racks, the gears are arranged on gear shafts, and the gear shafts are rotatably arranged on the movable plate and provided with gear motors in a matched mode; one ends of the two stretching racks are connected to a stretching plate, and the stretching plate is connected with the mold core. The double-rack linkage stretching is adopted, the stretching action balance of the stretching plate is high, and the double-rack linkage stretching device is suitable for super-large-layout sheet forming.

The present application belongs to the technical field of biomass heat-conducting film material preparation, and particularly relates to an ultrathin light and soft biomass heat-conducting film material and a preparation method thereof. First, a spinning solution is prepared from biomass raw materials and graphene oxide, the biomass raw materials including lignin cellulose, chitin, sodium alginate, regenerated plant protein and the like, and then an ultrathin light and soft biomass heat-conducting film material is finally prepared through electrostatic spinning technology and gradient calcination treatment. The present application uses biomass as raw material, is widely sourced, is environmentally friendly, and can heat-reduce graphene oxide to graphene while carbonizing the biomass material through gradient calcination. The heat-conducting film material prepared in this way has the advantages of ultrathin lightness, high heat conduction efficiency, low cost, easy preparation and the like.

The utility model relates to the field of engineering machinery, and provides a hydraulic support vehicle stopping system and an engineering vehicle, the hydraulic support vehicle stopping system comprises a hydraulic control device arranged on the engineering vehicle; a flame-retardant wear-resistant layer is arranged on the bottom surface of the wear-resistant supporting plate; the hydraulic supporting rod comprises a supporting structure, a piston rod and a hydraulic main rod, a cavity communicated with the hydraulic control device is formed in the hydraulic main rod, one end of the piston rod is movably arranged at one end of the hydraulic main rod through the cavity, the other end of the hydraulic main rod is connected to the engineering vehicle, and the other end of the piston rod is movably connected with the supporting structure. One end of the supporting structure is rotatably connected with the engineering vehicle, and the other end of the supporting structure is movably connected with the top face of the abrasion-resistant supporting plate. According to the hydraulic supporting vehicle stopping system, emergency braking or self-rescue treatment of an engineering vehicle can be achieved by controlling stretching and retracting of the hydraulic supporting rod.

The application relates to the technical field of bellows, in particular to a single-crystal furnace bellows structure with limiting and guiding interlocking, which comprises a bellows body, a plurality of groups of flanges are connected to the bellows body, and adjacent two groups of flanges are connected through limiting telescopic link pieces; equidistant traction assemblies are connected to the flanges; the equidistant traction assemblies can drive adjacent two groups of the flanges to move away from or close to each other at the same speed; locking assemblies are arranged on the equidistant traction assemblies and can lock the equidistant traction assemblies after the bellows body is elongated or shortened to a predetermined length; support assemblies are arranged between adjacent two groups of the flanges; rubber wheels rolling against the bellows body are rotatably installed on the support assemblies; when adjacent two groups of flanges move away from each other, the support assemblies can drive the rubber wheels to move towards the bellows body, so that the bellows is prevented from being damaged.

The utility model belongs to the technical field of bridge engineering, and particularly relates to an integral anchoring guide rail type bridge seamless expansion device, which comprises a fixed end component, a fixed end component and a fixed end component, the sliding end assembly is fixedly arranged at the other end in the bridge parting, and the sliding end assembly is in sliding connection with the fixed end assembly; the liquid waterstop is arranged between the top end of the fixed end assembly and the top end of the sliding end assembly; and the rubber water stop assembly is arranged in the bridge parting seam and located between the bottom end of the fixed end assembly and the bottom end of the sliding end assembly. A guide rail type telescopic structure is adopted, the requirement for telescopic deformation of the bridge is met, meanwhile, a continuous seamless road surface is formed, and the bridge water stop structure has the advantages of being smooth in vehicle running, low in noise, good in water stop effect, good in durability and the like and is particularly suitable for urban bridges and bridges high in noise control requirement.

The utility model relates to a kind of airing rod telescopic mechanism and clothes airing machine, to solve the problem of not smooth, easy to wear and tear of airing rod telescoping in prior art, by setting movable roller assembly in the rod cavity bottom wall of fixed main rod, and setting second roller on the end face of the plug of telescopic rod, when telescopic rod is telescoped in fixed main rod, multiple rollers support and limit telescopic rod from different directions, reduce the friction between telescopic rod and inner wall of fixed main rod, realize more smooth telescoping effect, at the same time, through the cooperation of multiple roller design, sliding slot and roller assembly, avoid telescopic rod shaking, tilting, improve the stability of telescopic rod telescoping, reduce the wear and tear of telescopic rod and main rod, prolong service life.

This utility model discloses a telescopic boom with lubrication function, including an inner boom, an outer boom, a hydraulic cylinder, a locking assembly, a sliding assembly, a limiting assembly, and an adjusting assembly. The inner boom is telescopically mounted inside the outer boom via the hydraulic cylinder. The locking assembly passes through the inner boom and the outer boom for locking the inner boom and the outer boom. The sliding assembly is located on both sides between the inner boom and the outer boom for lubricating sliding between them. The limiting assembly is located between the inner boom and the outer boom for limiting the extension distance of the inner boom. The adjusting assembly is located on both sides of the outer boom for adjusting the tightness between the inner boom and the outer boom. This utility model effectively improves the lubrication effect of the wear-resistant block, reduces the lubrication cycle, and extends the service life of the wear-resistant block and the guide rail.

The application discloses a PLA copolymer polycarbonate biaxial stretching film and a preparation method thereof, and belongs to the technical field of high polymer materials. The film is prepared from 100 parts of PLA copolymer polycarbonate, 0.3-0.6 parts of a chain extender, 0.5-1.0 parts of an anti-hydrolysis agent, 0.1-0.2 parts of a lubricant, 0.1-0.3 parts of a primary antioxidant and 0.2-0.4 parts of a secondary antioxidant through melt extrusion, biaxial stretching and heat setting. The film has high heat resistance, high light transmittance, low haze and excellent processing stability through unique molecular structure design, synergistic system of additives and fine biaxial stretching process, the tensile strength retention rate of the film at 80 DEG C is greater than or equal to 80%, and the film can be used in the fields of optics, high-barrier packaging and industry.

The utility model discloses a steel plate high-precision synchronous feeding and shearing device which comprises a machine frame, a conveying mechanism and a shearing mechanism are arranged on the machine frame, the conveying mechanism comprises a feeding frame and a feeding frame, the feeding frame is arranged below the shearing mechanism, and conveying belts are arranged on the feeding frame and the feeding frame respectively. The end, away from the feeding frame, of the feeding frame is rotationally connected with the rack, a connecting base is further arranged at the other end of the feeding frame, guide grooves are formed in the two sides of the connecting base, the connecting base is in sliding fit with the two side walls of the feeding frame through the guide grooves, a displacement groove is formed in the rack, the connecting base is in sliding fit with the displacement groove through a guide protrusion, and a transition roller is rotationally arranged on the connecting base. The shearing mechanism comprises a driving air cylinder and a shearing knife, the shearing knife is arranged on the machine frame in a sliding mode in the height direction, an abutting block is arranged on the side wall of the shearing knife, and a transmission block is arranged on the machine frame and located between the abutting block and the guide protrusion. The feeding and shearing device is simple in structure, stable in feeding and shearing operation and good in using effect.