42results about How to "Avoid stretching" patented technology

The present application relates to the technical field of aluminum strip electroplating, and particularly relates to a continuous extrusion and electroplating integrated preparation method for aluminum strip. The present application is characterized by the following aspects: a full-process continuous process design is adopted, including continuous extrusion, continuous electroplating pretreatment, continuous electroplating of composite coating, and continuous post-plating treatment; a differentiated process connection scheme is set for 1 series and 6 series aluminum alloy substrates; a nickel functional layer deposition thickness quantitative regulation and control model is adopted, in which a turbulence correction coefficient is introduced; and a copper-nickel composite coating structure, segmented current density control, plating solution temperature matching concentration matching regulation and control technology are adopted. The present application realizes integrated continuous production of aluminum strip forming and surface modification, greatly improves the adhesion, thickness uniformity and corrosion resistance of the coating, and balances the production efficiency and product performance, and can be widely applied to the preparation of conductive aluminum strips in high-end fields such as new energy vehicles.

The utility model discloses an adjustable splitting machine for sheet electrolytic copper foil, which comprises a base, a driving part and a splitting part, the base is provided with a support frame arranged at the top of the base, the driving part is arranged at the top of the base and is provided with a connecting frame arranged at the top of the support frame, a driving roller is transversely and rotatably arranged in the connecting frame, and the splitting part is arranged at the top of the driving roller. The slitting part is arranged on the side face of the driving part and provided with a moving frame arranged on the side face of the connecting frame in a sliding mode, a gear a is rotationally arranged in the moving frame and connected with the driving roller in a meshed mode, and a slitting roller is transversely and rotationally arranged at the bottom of the moving frame. By arranging the slitting part, synchronous driving and accurate slitting of the slitting rollers can be achieved, through meshing transmission of the driving roller and the gear a, it is guaranteed that the rotating speeds of the slitting rollers are consistent, copper foil stretching or tearing caused by the rotating speed difference is avoided, and meanwhile the slitting width can be rapidly adjusted according to the product specification through the modular design.

This invention provides a multi-head steel strip winding control system, including a main channel with multiple winding stations equipped with winding wheels along its length. The steel strip moves along the main channel, arranged from the outside to the inside and sequentially wound onto the winding wheels at each winding station. A redundant steel strip detection unit detects the amount of steel strip redundancy. When the redundancy exceeds a maximum redundancy threshold, the winding wheel speed is increased until the redundancy falls below a minimum redundancy threshold, at which point the speed is reduced back to the initial speed. As the steel strip passes through the main channel, it is wound directly onto multiple winding wheels in an outward-to-inward sequence, eliminating the need for rewinding via a rewinding machine and then rewinding via a layer winding machine, thus shortening production steps. Simultaneously, it keeps the steel strip in a relaxed state during winding, preventing excessively long redundant steel strips from drooping and contacting the ground, which could cause multiple narrow steel strips to knot or rub against the ground, affecting continuous production and product quality.

A method for removing a weft thread which has been introduced incorrectly on an air-jet weaving machine and a corresponding air-jet weaving machine are proposed, wherein a first drive device drives an opening mechanism and wherein a second drive device drives a sley (36) together with the guide bars (32). A control mechanism operates the first drive device and the second drive device such that they run synchronously with one another in a normal weaving operation. The method according to the invention comprises the following steps: detecting a weft thread which has been introduced incorrectly into the shed with at least one warp thread stop motion; cancelling the synchronization between the first and second drive devices by means of the control mechanism; operating the second drive device by means of the control mechanism such that the guide bars (32) assume a first swivel position which swivels away from the warp-weft thread interlacing point (66); operating the first drive device by means of the control mechanism such that the opening mechanism converts the shed into a first open position with a relatively small opening angle (a); removing the incorrectly introduced weft thread on the introduction side or the exit side; cutting off the incorrectly introduced weft thread on the introduction side; and removing the incorrectly introduced and cut-off weft thread.

The utility model relates to the technical field of cables, and discloses an anti-bending flexible cable which comprises a shielding layer, a filling layer is arranged on the inner wall of the shielding layer, a flame-retardant assembly is arranged in the filling layer, a first supporting assembly is arranged on the outer side of the flame-retardant assembly, an inner core is fixedly connected in the supporting assembly, and a second supporting assembly is arranged in the inner core. A second supporting assembly is arranged on the outer side of the shielding layer, an anti-bending layer is fixedly connected to the outer side of the supporting assembly, a sheath layer is fixedly connected to the outer side of the anti-bending layer, the flame-retardant assembly comprises a plurality of filling sleeves, the outer sides of the filling sleeves are arranged on the outer side of the filling layer, and flame-retardant powder is arranged in the filling sleeves. According to the utility model, through the ammonium polyphosphate flame-retardant powder in the plurality of filling sleeves, flame is prevented from further spreading towards the inside of the cable, and the transmission of heat to an unburned part can be reduced, so that the flame-retardant effect is achieved, the safety of the cable and the surrounding environment is protected, and the fire is prevented from spreading due to the combustion of the cable.

The utility model discloses a film winding mechanism in the technical field of film winding, which comprises a base, a square groove is arranged on the base, two sliders are movably mounted in the square groove, a vertical plate and a hydraulic cylinder are respectively and fixedly mounted at the tops of the two sliders, a driving motor is fixedly mounted on the vertical plate, and the hydraulic cylinder is fixedly mounted on the driving motor. And an output shaft of the driving motor is connected with a rotating shaft through a coupling. Through the arrangement of the circular shaft, the connecting rod, the auxiliary roller and the rotating assembly, in the using process, a film is wound around the winding roller installed on the rotating shaft after passing through the bottom of the auxiliary roller, and when a worker needs to adjust the height of the auxiliary roller to reduce the tension force, the circular shaft can be rotated through the rotating assembly; and therefore, the connecting rod can drive the auxiliary roller to rotate, the height of the auxiliary roller can be adjusted, adjustment of tensile force is achieved, different winding requirements are met, the situation that a thin film is pulled and deformed due to too large tensile force is avoided, and the winding quality is improved.

This utility model relates to the technical field of button attaching devices, specifically disclosing a button attaching device for garment processing, comprising: a button attaching platform and a button attaching machine body located on the button attaching platform. The button attaching machine body is fixedly connected to the button attaching platform, and clamping mechanisms are fixedly connected to both sides of the button attaching machine body. An auxiliary clamping mechanism is also provided between the clamping mechanisms and the button attaching machine body, and the auxiliary clamping mechanism is slidably connected to the button attaching platform. This utility model reduces the danger during use.

The present invention relates to an apparatus for manufacturing a saw-tooth line for surgical treatment, and more particularly, to an apparatus for manufacturing a saw-tooth line for surgical treatment, which can form saw teeth of a saw-tooth line used when lifting the skin in dermatology, orthopaedic surgery or the like at various angles and directions.

The utility model relates to the technical field of electric power detection, in particular to a magnetic type tower climbing robot device which comprises a driving unit, a protective shell is arranged on the driving unit, a gear cleaning unit is arranged on the protective shell, a guide unit is further arranged in the protective shell, and the driving unit comprises a second fixing frame arranged in the protective shell. A second motor is arranged in the second fixing frame, second magnetic attraction wheels are symmetrically and rotationally installed in the second fixing frame, the second motor drives the second magnetic attraction wheels to rotate through a gear set, the guide unit comprises a first fixing frame arranged in the protective shell, a first motor is arranged in the first fixing frame, and a second motor is arranged in the second fixing frame. According to the magnetic type tower climbing robot device, the conical plate and the spring rod of the gear clearing unit are designed, dirt on the surface of a tower can be effectively cleared away, the dirt is prevented from affecting the adsorption effect of the magnetic wheels, and it is ensured that the robot can stably climb in the complex environment.

This invention relates to the technical field of plastic bag embossing devices, and more particularly to a plastic bag relief embossing device. It includes: a base; side plates symmetrically connected to the top of the base; a controller mounted on the top of the base; a first rotating roller rotatably connected to the side plates at intervals; a rotating cylinder rotatably connected to the side plates, with circumferentially spaced circular holes on the cylinder; a mounting base connected to the side plates, located inside the rotating cylinder; and electromagnets evenly spaced on the top of the mounting base. This invention uses the controller to precisely control the on / off state of the electromagnets at designated positions. Magnetic force drives a push pin to pass through the circular holes and press against a heated plastic film. When the push pin rotates over the electromagnet, a connecting spring automatically resets it. This precise and controllable pressing method, combined with the assistance of heating and vibration components, can form indentations of varying depths and distinct layers on the surface of the plastic film, thereby producing a relief pattern with a strong three-dimensional effect.

The application discloses a cutting type eyeletting method and device, and relates to the technical field of eyeletting processing. In order to solve the problem that the existing eyeletting machine cannot provide stable solid support for the fabric to be processed during the eyeletting process, resulting in fabric subsidence and yarn pulling, yarn extraction and burr, the method comprises the following steps: placing the fabric to be processed in the eyeletting area of the needle plate of the eyeletting machine; supporting the fabric to be processed by using the support body arranged in the eyeletting area; controlling the cutter to move downward along the direction perpendicular to the plane of the fabric to be processed, the cutter has a cutting edge, and the cutting edge is used for forming a shearing surface parallel to the supporting surface of the support body; controlling the cutter to continue to move downward to a preset termination position, so that the fabric to be processed located between the cutter and the support body is subjected to the supporting action provided by the support body and the vertical shearing action provided by the cutter at the same time, and the eyeletting incision of the fabric to be processed is formed by cutting; in this way, the burr, yarn extraction and yarn pulling phenomenon of the incision can be effectively reduced.

The utility model discloses a novel elastic yarn and a fabric thereof, which belong to the field of textile, and comprise bamboo fiber filaments and elastic fibers as yarn cores, and hollow chinlon wound on the surfaces of the bamboo fiber filaments and the elastic fibers, the hollow chinlon winds the bamboo fiber filaments and the elastic fibers back and forth in an 8 shape to form a composite core yarn, the surface of the composite core wire is coated with a natural cellulose fiber coating layer. The yarn has good structural stability, the yarn core can be prevented from displacing in the using process, the hollow structure provides a buffering effect, and the restraining effect of the bamboo fiber filaments is combined, so that the elastic fibers are prevented from being excessively stretched; the natural cellulose fiber coating layer on the outer layer is good in moisture absorption, the hollow chinlon can utilize a hollow structure to assist in moisture conduction, the bamboo fiber filaments also have good moisture absorption and air permeability, the three parts are matched to avoid accumulation of excessive moisture in the shallow layer of the yarn, transfer of the moisture locally absorbed by the yarn in the length direction of the yarn can be accelerated, and stuffiness can be reduced.

The application discloses a roller shutter type filter and a use method, and relates to the technical field of air filtration. The filter comprises a rack, upper and lower winding boxes, upper and lower winding shafts, two driving modules, a flexible belt wound around the upper winding shaft and a filter core clamp head. The lower winding shaft is detachably arranged in the lower winding box. An electromagnetic clutch is arranged between each driving module and the corresponding winding shaft. When new material is added, the filter core clamp head clamps a filter core material head, and the upper winding shaft winds the flexible belt to pull the filter material upward to form a roll. When the material is replaced, the lower winding shaft actively winds, and the upper winding shaft follows to unwind. When the clutch is separated, the rigid connection between the driven end and the driving module is cut off, the unwinding resistance is greatly reduced, and the filter material is prevented from being deformed due to excessive tension. When the clutch is attracted, the inertia of the unwinding end is inhibited by using the structural resistance of the driving module, and the filter material is prevented from being excessively released to cause relaxation. The application concentrates all the material replacement operations at a low place, eliminates the climbing operation, avoids secondary dust pollution, and realizes stable and reliable material replacement.

The application discloses a kind of integrated polishing equipment for automobile sheet metal parts, it is related to automobile parts processing field, including polishing box, the inside of polishing box is equipped with rotating polishing head, polishing head is connected in the free end of mechanical cantilever, the free end of mechanical cantilever is equipped with dust collection head in the position close to polishing head, dust collection head is fixedly connected with one end of dust collection pipe, the other end of dust collection pipe is communicated with one end of dust collection box.The wet sponge disc in the application can adsorb these small particles, thereby making the air discharged from the wet sponge disc cleaner and less polluting to the environment.

The utility model discloses a kind of soft label printed matter high-speed product inspection device, it belongs to product inspection equipment technical field, including detection box and detection mechanism, the detection mechanism is fixedly connected on the middle end of detection box upper surface, the upper end of the detection box inner wall is fixedly connected with detection camera, the detection camera is connected with detection mechanism, the front of detection box is fixedly connected with feed frame, the upper end in the inside of feed frame is rotatably connected with driving roller by bearing, the lower end in the inside of feed frame is rotatably connected with driven roller.The utility model is through setting power component, initial deformation produced by printing due to curling, folding or storage is quickly eliminated, reduce the misjudgment risk caused by uneven surface, by setting adsorption component, eliminate small fluctuation or edge lifting in high-speed motion, ensure that printing is in detection box whole course adhering transmission surface, improve image acquisition definition, ensure the reliability of defect identification.

The utility model belongs to glass hollow machine transportation technical field, and disclose a kind of toughened glass hollow machine, including the inside upper and lower both ends front and back both sides of glass hollow machine body are fixed with slide rail, the left end surface inside slide of slide rail is equipped with electric sliding block, the lower end surface of electric sliding block is fixed with cuboid, the left and right front and back both sides of cuboid are fixed with vertical body, the lower end inside of vertical body is fixed with cylinder, the inside of cylinder is equipped with inner groove, the inside front end of inner groove is attached with round body, the rear end surface of round body is fixed with spring body, by suction cup, round body and spring body, cylinder, by using suction cup, round body, spring body and cylinder, can realize rebound type clamping transport, in the transport process, it can avoid due to external force and make clamping device shake, also can prevent due to clamping device straight, lead to glass from middle fracture and break, to lose benefit.

This invention relates to the field of construction auxiliary tools and discloses an auxiliary device for the construction of subway station roof slabs. The device includes a positioning plate, a connecting plate rotatably connected to the top surface of the positioning plate, a connecting rod rotatably connected to the top surface of the connecting plate, a load-bearing plate rotatably connected to one end of the connecting rod, a sliding cylinder fixedly connected to the top surface of the load-bearing plate, a guide rod slidably connected inside the sliding cylinder, clamping components rotatably connected to both ends of the load-bearing plate, and web plates fixedly connected around the perimeter of the positioning plate. A sliding groove is formed through the top surface of the web plates, and the top surface of the web plates is in close contact with ear blocks. An adjusting rod is threaded into the ear blocks, and a clamping block is fixedly connected to the lower surface of the ear blocks. This invention allows adjustment of the positions of two sets of load-bearing plates by rotating the lead screw, ultimately enabling the load-bearing plates to drive the clamping mechanism to clamp the four corners of the precast template. Operation is convenient, and the clamping components provide excellent fixation for the precast template, preventing it from falling off during lifting. The four lifting rings connecting the equipment ensure more even force distribution.

The invention discloses a punching mechanism for a film mulching rice transplanter. The punching mechanism is characterized in that a plurality of guide holes are formed in a supporting frame; the punching rod is movably matched with the guide hole; the multiple punching needles are obliquely arranged in the length direction of the supporting frame, and the middles of the punching needles are in sliding fit with the through holes in the supporting frame; eccentric wheels are connected to the two ends of the driving shaft and connected with linkage pieces, and the other ends of the linkage pieces are connected with the punching rods. When the driving shaft drives the eccentric wheel to rotate, the linkage piece drives the punching rod to move in the length direction of the guide hole and is linked with the punching needle to perform opening action and punching, the lower end of the punching needle quickly moves to the position below a transplanting claw of the transplanting mechanism, and a mulching film is punctured and moved away instantly before the transplanting claw inserts seedlings into a field. Therefore, the rice transplanting claw can transplant rice at the position punctured by the mulching film. The method has the technical effects that the seedling jumping phenomenon caused by the elasticity of the mulching film is eliminated, meanwhile, the extrusion damage of the broken opening of the mulching film to the rhizome of the seedling is completely eradicated, and the survival rate and the uniformity of transplanting are greatly improved.

The invention belongs to the field of optical fiber communication, and discloses an easy-to-open skylight optical cable suitable for fiber-to-the-home and application and a preparation method thereof.The easy-to-open skylight optical cable comprises a cable core and an outer sheath wrapping the cable core, the outer sheath comprises a first phase and a second phase which are distributed in the axial direction, the first phase serves as an outer sheath main body part, and a reinforcing piece is arranged in the outer sheath main body part; the first phase is used as an outer sheath, the second phase is used as a reserved skylight part, the reserved skylight part is used for being integrally pulled out and stripped from the outer sheath in the skylight opening operation of the optical cable, the reserved skylight part integrally extends into and penetrates through the outer sheath in the radial direction, and the elastic modulus and the elongation at break of materials of a main body part of the reserved skylight part and the outer sheath have a certain difference degree. When in use, the reserved skylight part is picked out to serve as a tearing end according to the elasticity modulus of the material, and the end of the reserved skylight part is torn manually. The invention also provides a preparation method of the composition. The optical cable manufactured by the method has low requirements on operation techniques of constructors, is simple and labor-saving, can be manufactured by using existing equipment, and has relatively simple requirements on the equipment and the process.

The utility model discloses a plug-in type wiring terminal for preventing cable deformation, which comprises a main body, an installation mechanism, a fixing assembly and an auxiliary assembly, the installation mechanism comprises a rotating rod, an upper contact plate, a lower contact plate, a first spring and an external connection plate, and the fixing assembly comprises a second spring, a fixing piece and an external connection wire. The auxiliary assembly comprises a cover pressing plate and a fixing bolt, under the mutual cooperation effect of the above mechanisms, the device ensures good electrical contact when current passes through through accurately designed contact points and wiring terminals, and reduces current instability or signal attenuation caused by poor contact, in addition, through the plug-in design, the device is convenient to use, and the cost is reduced. The external wire can be rapidly and reliably fixed on the wiring terminal, thereby reducing installation or maintenance time and improving work efficiency.

The utility model belongs to the technical field of smoking ovens, and particularly relates to a support-adjustable preserved meat processing smoking oven which comprises a meat smoking oven frame, and an adjustable airing mechanism is fixedly mounted on the inner surface of the meat smoking oven frame; the adjustable airing mechanism comprises a sliding groove, an adjusting frame is slidably installed on the inner surface of the sliding groove, threaded rods are fixedly installed at the two ends of the adjusting frame, fixing plates are slidably installed on the outer surfaces of the threaded rods, and clamping plates are fixedly installed on the inner surfaces of the fixing plates. According to the support-adjustable preserved meat processing smoking furnace, hexagon bolts and fixing plates are detached from threaded rods, then the height of the adjusting frame is adjusted, then the hexagon bolts and the fixing plates are inserted into the threaded rods again, clamping plates on the fixing plates are clamped into clamping grooves, then the hexagon bolts are screwed down, and the fixing plates are clamped into the clamping grooves; the adjusting frame is adjusted and fixed on the bacon stove frame again, and then the clamping frame on the placing rod is placed on the adjusting frame according to the distance between the bacon.

The utility model relates to the technical field of raising pads, and particularly discloses a patient lower limb raising pad which comprises a raising pad body and a raising plate, the raising plate is movably installed in the raising pad body, a guide rail is fixedly installed on one side of the surface of the raising pad body, a limiting groove is formed in the surface of the guide rail, and a sliding rod is slidably connected to the surface of the limiting groove. A fixing column is fixedly mounted on the top surface of the lifting plate, a buffer spring is arranged in the fixing column, a first top cover is fixedly mounted at the top of the buffer spring, a connecting rod is fixedly mounted on one side of the surface of the lifting plate, and a second top cover is fixedly mounted on one side of the surface of the connecting rod; according to the lower limb lifting cushion for the patient, after the front lifting plate is lifted upwards, the side lifting plates are further lifted upwards, so that a certain height difference is always kept between the side lifting plates and the front lifting plate, a certain supporting effect on the bottoms of thighs of the patient is effectively achieved, and the comfort level and the rehabilitation effect of the patient are improved.

This invention discloses an engineering exploration and sampling device. The invention relates to the field of engineering exploration and sampling technology, and includes a platform and a control module. The platform is equipped with a centrifugal mechanism, which includes a turntable rotatably connected to the platform. A rotating arm is mounted on the turntable, and a sample tube and a drill tube are mounted on the rotating arm. One end of the sample tube is connected to one end of the drill tube, and the sample tube and drill tube rotate synchronously. A pressure limiting mechanism is installed on the platform, and a limiting mechanism is installed inside the sample tube. This invention enables the smooth transfer of complex soil and rock samples, including loose sand and gravel, soil layers, broken rock cores, and mud, from the drill tube to the sample tube by uniformly applying centrifugal force to the entire sample without opening the tube, flipping, or artificial disturbance. It features the ability to achieve overall, controllable, and synchronous transfer of complex samples with minimal or no intervention.

The utility model discloses a simple hook device which comprises a base body, a hook body connecting part is arranged on the inner side portion of the base body, a first stopping part and a second stopping part are sequentially arranged on the periphery of the hook body connecting part in the anticlockwise direction, and a connecting port is formed in the hook body connecting part. The hook body is rotationally connected with the connecting port through an outer side part rotating shaft, a rotation stopping body is arranged on the outer side part of the hook body, when the hook body is in a storage state, rotation stopping limiting contact is formed between the rotation stopping body and the first stopping part, and when the hook body is in an opening state, rotation stopping limiting contact is formed between the rotation stopping body and the second stopping part. The utility model provides a simple hook device, which ensures that a hook body can stably stop rotating and be positioned in a storage state and an opening state, simultaneously prevents a base body from being pulled and deformed due to overlarge unilateral stress of the hook body, and improves the distortion resistance of the device.

This invention belongs to the field of graphene label processing technology and discloses a die-cutting device for processing ultra-high frequency graphene electronic tags. The device includes a base, a support frame fixed to the top of the base, and a support seat bolted to the top of the support frame. An oil replenishment mechanism is installed inside the base. This invention, through the coordination of structures such as the die-cutting cutter, the first pull rod, and the push rod, enables the device to achieve one-click quick installation and removal of the die-cutting cutter and precise positioning. It adapts to the flexible production needs of multiple varieties and small batches of ultra-high frequency graphene electronic tags. The die-cutting cutter uses a sliding insertion connection to ensure installation accuracy. The first pull rod provides a force application point for cutter insertion and removal, and the push rod can release the cutter lock with one click. This eliminates the need to disassemble the frame and repeatedly adjust the cutter, shortening changeover downtime, avoiding a decrease in positioning accuracy caused by disassembly and assembly, and preventing the degradation of tag radio frequency performance due to out-of-tolerance die-cutting dimensions. Ultimately, it improves changeover production efficiency and ensures die-cutting processing accuracy.

The invention discloses a cutting and hole flanging composite die which is characterized in that an upper die comprises an upper supporting plate and an upper die base, and a material chopping knife, an upper folding knife and an upper stripping plate are fixedly connected to the upper die base; the cutting edge part of the material chopping knife is positioned below the upper folding knife; the upper stripping plate is positioned on the outer sides of the material chopping knife and the upper folding knife; the lower die comprises a lower supporting plate and a lower die base, and a lower die cutter and a hole flanging female die are arranged on the lower die base. The lower die cutter can move up and down relative to the lower die holder; during forming, the upper die moves downwards, after the upper stripping plate presses a product, the material chopping knife and the lower die knife are matched to cut off connecting waste in a hole of the product, and the waste falls down; the upper die continues to move downwards, the lower die cutter moves downwards to avoid the to-be-flanged hole part of the product, and the upper folding cutter is matched with the hole flanging female die to achieve hole flanging forming of the to-be-flanged hole part; and closing the die to finish hole flanging and forming. According to the cutting and hole flanging composite die, cutting of connecting waste in a middle hole of a product and hole flanging forming can be achieved, a set of die does not need to be independently arranged, die design and manufacturing cost can be reduced, machining efficiency is improved, and accumulative errors are reduced.

The utility model discloses a novel rebounding device which comprises a shell, an ejector rod and a hook groove, the ejector rod is vertically installed on the shell and can conveniently move in the shell in the longitudinal direction, and a positioning block is installed on the side wall of the ejector rod. A hook groove is formed in the ejector rod, the hook groove extends outwards to be provided with a clamping hook, the clamping hook is installed at one end of the hook groove, the ejector rod is vertically installed in the shell and can smoothly and longitudinally move in the shell, and the stability and high efficiency of the rebounding device in the working process are guaranteed. The design of the hook groove and the clamping hook further enhances the reliability and accuracy of the ejector rod in the moving process, the spring is arranged at one end of the ejector rod and is allowed to longitudinally reciprocate relative to the ejector rod, so that the rebound device has better elasticity and restoring force, meanwhile, the arrangement of the buffer rod effectively limits the moving range of the spring, and the service life of the rebound device is prolonged. Therefore, the service life of the spring is prolonged, and the overall performance of the rebounding device is improved.

This utility model belongs to the field of punching machine technology, and in particular to an automatic punching machine for preventing material stretching. It includes a conveying assembly and a cylinder cutting assembly. The cylinder cutting assembly and the cylinder punching assembly are sequentially installed on one side of the conveying assembly frame. The conveyor belt of the conveying assembly is equipped with a rubber strip. When the cylinder punching assembly is activated, its punching head moves downward, and the support plate moves downward accordingly. At this time, the roller plate provides auxiliary limiting for the rubber strip, allowing the automatic punching machine to punch stably. After the rubber strip is punched, the cylinder cutting assembly and the connecting cylinder are activated simultaneously. The cylinder cutting assembly drives the cutter to cut the rubber strip, and the lower pressure plate and the upper lifting plate simultaneously compress the rubber strip to prevent stretching. This ensures that the dimensions of the rubber strip are not easily affected during cutting, reducing the defect rate of the cut rubber strip.

The utility model discloses a chain formula belt conveyer relates to the field of conveyer, including first mounting panel, drive motor and second mounting panel, the second mounting panel is located the rear of first mounting panel, the drive motor fixed mounting is at the front end one side of first mounting panel, two drive discs are movably installed between first mounting panel and second mounting panel, a plurality of drive columns are clamped to the outside of drive disc, and the both ends of drive column movably install transmission chain, and the outside of a plurality of drive columns is equipped with transmission belt. The utility model can reduce the impact damage to transmission chain and drive column significantly, prolongs the service life of equipment, and the parallel arrangement of support wheel ensures that force is evenly distributed, avoids local overload, also improves the overall load effect of conveyer, and prevents transmission chain from receiving impact and elongating under long time stress, improves the service life of transmission chain, reduces the replacement efficiency and cost of transmission chain.

The utility model discloses a kind of slitting device of seamless silica gel tape, it is related to seamless silica gel tape technical field.The utility model includes support plate, further include: fixed part, the fixed part is set on support plate;Cutting part, the cutting part is installed on support plate;The fixed part includes power component, the power component is set on support plate;And limiting component, the limiting component is installed on power component, the power component includes fixed plate one fixedly connected in support plate top, the fixed plate one is penetrated by rotating shaft, the rotating shaft is rotatably connected with fixed plate one, the outer wall of the rotating shaft is provided with connecting roller.The utility model is set by setting fixed part, it is difficult to adapt to seamless silica gel tape roll of different inner diameter, when seamless silica gel tape roll inner diameter and jig specification do not match, easy to appear over-loose slip or over-tight damage situation, difficult to meet the quick switching demand of diversification order, greatly reduce the problem of production efficiency.