54results about How to "Constant tension" patented technology

The invention relates to the technical field of spinning devices, and provides a polyester cotton yarn spinning automatic tension adjusting system which comprises a machine base, mounting bases are evenly fixed to the edge of one side of the top end of the machine base, and guide wheels are evenly and rotationally connected to the outer wall of the other side of the top end of the machine base. The adjusting structure is arranged, the machine base is vertically installed on the outer wall of the spinning machine through the installation base, polyester cotton yarn penetrates through one side of the guide wheels and one side of the tensioning wheel, the tensioning wheel can conduct tensioning adjustment on the polyester cotton yarn between the guide wheels, the balancing weight is hung below a hanging ring through a hook, and under the influence of gravity, the balancing weight is hung on the upper portion of the hanging ring. According to the automatic tension adjusting system for polyester-cotton yarn spinning, the balancing weight can apply constant tension to polyester-cotton yarn through the tensioning wheel, the phenomenon that the polyester-cotton yarn is broken due to tension change in the conveying process is avoided, the device has the constant tension, meanwhile, the tension adjusting function is convenient, and therefore the working efficiency of the automatic tension adjusting system for polyester-cotton yarn spinning in the using process is improved.

The anchor rod comprises a free-section rod body, a flexible large-deformation-section rod body and an anchoring-section rod body which are sequentially connected end to end, an anchor head is fixedly arranged on the free-section rod body, and the anchoring-section rod body is used for being fixed in a stable bed rock, so that the end of the anchor rod is fixed; the free section rod body is used for being fixed in a sliding rock mass in a penetrating mode, the flexible large-deformation section rod body is arranged at a shear deformation zone between the sliding rock mass and a stable bed rock, and the flexible large-deformation section rod body is connected with the free section rod body and the anchoring section rod body through limiting tension type hydraulic jacks at the two ends of the flexible large-deformation section rod body. The limited tension type hydraulic jack senses the pressure of hydraulic oil through a pressure sensing valve arranged on the limited tension type hydraulic jack, and a limited pressure value is set. Tension force and shear force can be borne through deformation of the flexible large-deformation section rod body, the performance of the anchor rod is effectively improved, and the tension type hydraulic jack can be limited to ensure that the tension borne by the anchor rod is constant.

The invention discloses a conductive film anti-bending durability testing device and method, and relates to the technical field of anti-bending durability testing, the conductive film anti-bending durability testing device comprises a machine body and a control panel fixedly mounted on the machine body; and the clamping test part is mounted on the machine body and is used for clamping and fixing the two ends of the conductive film and carrying out bending durability test on the two sides of the conductive film. The device has the advantages that the testing efficiency is improved by simultaneously carrying out three-point bending testing on the conductive film, constant tension of the conductive film is ensured during testing, multi-tension testing can be carried out, the testing accuracy is improved, in addition, centrifugal force generated by rotation of a second gear is used for compensating a gap generated by frictional wear, and the testing precision is improved. The second toothed plate and the second gear are kept in a tight meshing state, the transmission response speed of the gear and the toothed plate is increased, the tension stability of the conductive film is ensured, the test accuracy is further improved, the test result is more representative, and the bending resistance of the conductive film can be better indicated.

The utility model discloses an uncoiling constant tension control device, which belongs to the technical field of uncoilers and comprises an uncoiler body, a cross rod mounted at the bottom end of the uncoiler body and used for supporting the uncoiler body, a mandrel mounted on the uncoiler body and used for supporting coiled materials, and a variable frequency motor used for controlling the mandrel to rotate. A sliding plate is slidably arranged on the transverse rod in the length direction. The pressing roller is arranged on the outer side of the uncoiling machine body, the pressing roller is attached to the surface of the coiled material and rotates along with conveying of the coiled material, the rotating speed sensor is installed at the end of the pressing roller, and a control system composed of the programmable controller and the variable frequency motor on the uncoiling machine body is matched, so that in the conveying process of the coiled material, the coiled material can be continuously conveyed, and the coiled material can be continuously conveyed. The conveying rate of the coiled material is judged through the rotating speed sensor, then the variable frequency motor is controlled through the programmable controller, it is ensured that the conveying rate of the coiled material is constant, then it is ensured that constant tension is achieved during uncoiling, and practicability is higher.

The utility model relates to bag making machine technical field discloses a kind of non-woven fabric three-dimensional bag making machine with rubber sticking deviation correction, including bag making machine ontology, bag making machine ontology side is provided with support, support inside is provided with winding roller, support inner wall side is rotatably connected with limit roller one, support inner wall is rotatably connected with limit roller three close to limit roller one side, support inner wall is equipped with tensioning adjusting mechanism, support outer wall side is fixedly connected with mounting bracket, the mounting bracket inside is equipped with mounting mechanism.In the utility model, the basic tension is set by rotating screw one, and the dynamic tension fluctuation is absorbed by the buffer assembly composed of spring one. This static adjustment and dynamic buffering combination solves the wrinkle and deformation problem caused by uneven tension of the fabric, ensures constant conveying tension, and improves the finished product size precision and quality consistency.

This invention provides a heat treatment method for stainless steel reed wire, relating to the field of reed wire heat treatment technology. The vertical take-up device includes a support frame and a rail; a movable component is mounted on the rail, and a winding structure is fixedly mounted on the top of the movable component; a wire transfer drum is fixedly mounted at the bottom of the vertical shaft, and the reed wire body is spirally wound around the outside of the wire transfer drum; auxiliary structures are provided on both sides of the top of the support frame, and a guide component is fixedly mounted on the outside of the support frame; precise wire guidance is achieved through the upper and lower guide rollers of the guide component, and the wire is clamped and fed by the wire transfer drum and auxiliary rollers, preventing wire deviation, shifting, and tangling from the source; the auxiliary structure can adjust the clamping force on the reed wire body, ensuring constant tension, tight and uniform wire arrangement, and neat coiling during the winding process, facilitating subsequent transportation, straightening, and stamping processing, thus solving the problems of wire deviation and shifting.

The invention relates to the technical field of transformer manufacturing, and discloses a foil winding machine and a transformation method.The foil winding machine comprises a main machine base, the front side of one support is rotationally connected with a first air expansion shaft, the outer side of the first air expansion shaft is wound with an interlayer insulating material, the front side of the other support is rotationally connected with a second air expansion shaft, and the outer side of the second air expansion shaft is wound with an interlayer insulating material; a supporting strip is wound on the outer side of the second air expansion shaft, an unwinding main machine and an electric control cabinet are fixed to the other side of the upper end face of the main machine base, the output end of the unwinding main machine is connected with a copper foil discharging frame, and copper foil is wound on the outer side of the copper foil discharging frame. According to the foil winding machine, through constant tension output of the unwinding variable frequency motor and the interlayer variable frequency motor and position control of the winding main shaft servo motor, copper foil and interlayer insulating materials keep constant tension when a coil is wound, a supporting strip does not move in the winding process, the wound coil is more compact, the outer diameter is not oversized, the product quality is guaranteed, and the production efficiency is improved. And the production efficiency is improved.

The application discloses a mechanical constant-tension pay-off reel frame and relates to the technical field of reel frames. The mechanical constant-tension pay-off reel frame comprises a reel body, the reel body is rotatably arranged in a reel frame body through a reel support, a tension wheel is fixedly arranged on one side of the reel body, a tension belt is sleeved on the tension wheel, one end of the tension belt is fixed, and the other end of the tension belt is fixedly connected with a tension belt spring; and the mechanical constant-tension pay-off reel frame further comprises a tensioning mechanism, the tensioning mechanism synchronously adjusts the extension and contraction amount of the tension belt spring during a pay-off process, so as to keep the pay-off tension constant. The tension belt is sleeved on the tension wheel, the tension belt spring gives the tension belt a pulling force, the relative friction force between the tension wheel and the tension belt is generated under the action of the pulling force, and then the tension during the pay-off process is kept constant by adjusting the friction force.

The invention provides a special fuel gas laminating machine for automobile leather. The special fuel gas laminating machine comprises a fuel gas compounding mechanism, a cooling mechanism and a second storage rack, the fuel gas compounding mechanism comprises a main body, a display screen is arranged on one side of the main body, three compounding rollers are vertically arranged on the upper part of the main body in sequence, and a driving motor is independently arranged at one end of each compounding roller; the second storage rack comprises a frame, the upper portion and the lower portion of the frame are each provided with a cross beam moving vertically, a plurality of temporary storage rollers are arranged on the cross beams, the diameter of each temporary storage roller is not smaller than 300 mm, and the distance between every two adjacent temporary storage rollers is not smaller than 800 mm. According to the invention, the three independently controlled composite rollers are arranged on the fuel gas composite mechanism, so that the composite quality of the soft fabric is ensured, and meanwhile, due to the arrangement of the second storage rack, the problem of the composited fabric caused by overlarge wrap angle is avoided.

The utility model relates to release wire reel technology field, concretely is a kind of tension constant release wire reel for copper wire stranding, including main support frame, vice support frame and copper wire, be provided with unwinding mechanism on the main support frame, the unwinding mechanism is used to release copper wire, be provided with tensioning mechanism on the vice support frame, the tensioning mechanism includes: second positioning piece, the second positioning piece is set on vice support frame, slidingly connected with U piece on the second positioning piece, the inner wall of U piece is rotatably connected with connecting rod. The utility model is provided with tensioning mechanism, make pressing ring to copper wire exert constant downward pressure, ensure that copper wire keeps stable and constant tension in the release process, user can adjust the weight of weight according to actual demand, flexibly control tension size, realize the accurate adjustment and sustained constant release of tension, to effectively improve the efficiency and finished product consistency of entire copper wire stranding process.

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 invention discloses a film winding device capable of improving wrinkling phenomenon, and relates to the technical field of film winding, the film winding device comprises a workbench, a controller is installed on the top of the workbench, an unwinding mechanism is installed on one side of the top of the workbench, and a winding mechanism is installed on the other side of the top of the workbench; a supporting roller is installed in the middle of the top of the workbench, transverse anti-wrinkling mechanisms are symmetrically arranged on the two sides of the supporting roller, and a longitudinal anti-wrinkling mechanism is arranged on the side, close to the tension adjusting mechanism, of the winding mechanism. According to the utility model, wrinkles generated by tension during transverse conveying can be avoided, and wrinkles formed by air in a film interlayer can be reduced, so that the wrinkling phenomenon during film rolling is better improved.

The utility model provides a kind of composite filtering MBR membrane piece assembly, including pool body, support, the middle part of the inside of pool body is fixedly connected with support;The inside of the support is detachably connected with crossbeam by connecting piece, and the membrane piece is connected between the crossbeam;The membrane piece is composed of numerous membrane filaments.The utility model has the advantages that lifting beam, joint, movable head are integrated, and the lifting of movable head can be realized by practical hand wheel rotating screw rod, so as to realize the lifting of lifting beam, since membrane piece bottom is fixed, the tightness adjustment of membrane piece can be realized by pulling steel wire, after long time use, its surface will relax due to accumulation, gravity effect, such structure design can keep membrane piece with constant tension, solve the problem of shaking or accumulation caused by membrane filament relaxation due to long-term operation, prolong the life of membrane;When maintaining, without special tool and shutdown, manual rotation hand wheel second can complete the tensioning adjustment of all membranes.

This application relates to a bracket assembly, a windshield assembly, and a vehicle. When an optical element is assembled on the bracket body or removed, the limiting member is in a loosened position, and each abutment part and clamping arm is separated from each other. When the fixed shaft is inserted between the two clamping arms, it can push the two clamping arms apart. When the fixed shaft is pulled out of the two clamping arms, it can also push the two clamping arms apart. When the optical element is inserted between the two clamping arms, the limiting member is in a pressed position, and each abutment part abuts against each clamping arm, so that the two clamping arms are tightly abutted against the opposite sides of the fixed shaft. This ensures that the insertion force of the optical element is small and the extraction force is large during the assembly process. In addition, the tension of the retaining spring remains unchanged, and the extraction force between the retaining spring and the fixed shaft is stable over a long period of time. Furthermore, the interference fit between the retaining spring and the fixed shaft can be reduced to reduce the insertion force.

The utility model relates to the technical field of material coiling, and discloses a material coiling device which comprises a main body mechanism and a swing arm mechanism, the swing arm mechanism is located at the upper end of the main body mechanism, and the main body mechanism comprises a guide rail, a frame body and a cloth liner unwinding device. According to the material coiling device, through installation of the main body mechanism, the coiling device can reciprocate along the guide rail under the driving action of the motor speed reducer so as to realize coiling, loading and unloading of material tools at different stations, the cloth liner unwinding device is connected with the frame body through a linear sliding rail pair, and the tail end of the cloth liner shaft is provided with the pneumatic braking device. The tension parameter value of the cloth liner is set, the braking force is adjusted in real time through the electric proportional valve, the tension for opening the cloth liner is adjusted and guaranteed to be constant in time, the deviation rectifying roller is connected with the frame body through the linear sliding rail pair, the cloth guide roller and the leveling roller are of an unpowered roller structure and are fixed to the frame body, and the two ends of the tension roller are each provided with a set of tension sensor. And a screw is fixed on the frame body.

The utility model relates to the technical field of silk reeling, and discloses a silk spitting device of a silk reeling machine. Comprising a bottom plate, a water tank is arranged on the bottom plate, a guide mechanism is arranged on the bottom plate, a cover body is fixedly installed at the top of the bottom plate, a drying mechanism is arranged in the cover body, a vertical plate is fixedly installed at the top of the bottom plate, and two first supporting plates are fixedly installed on the vertical plate; a rotating shaft is rotationally mounted between the two first supporting plates, and a plurality of wire wheels are fixedly mounted on the rotating shaft; by means of the guide mechanism, silk can be limited, the turbulence phenomenon of the silk can be prevented, the tension of silkworm cocoon silk can be adjusted, it is guaranteed that the tension of the silkworm cocoon silk is kept constant in the whole silk reeling process, and the situation that the silk is broken and loosened is avoided; and through the drying mechanism, the wet silk can be dried, so that the silk thread is prevented from being affected by mildewing, yellowing and the like.

The embodiment of the application provides a kind of full-automatic inductance labeling machine, it relates to electronic component manufacturing technical field.It includes box, and the inside of box is equipped with conveying mechanism, labeling mechanism and positioning mechanism.Labeling mechanism contains mounting bracket, and mounting bracket is equipped with vertical plate, chuck and limit plate, and limit plate is equipped with the slot hole compatible with chuck, and vertical plate is equipped with electric push rod and push block.Positioning mechanism contains fixed frame, and fixed frame is equipped with barrel, winding motor, material receiving shaft and is used for the winding piece of label roll tensioning.Conveying mechanism contains material belt conveying assembly, adhesive tape reel and cutting assembly.The application realizes the stable supply and tensioning of label by positioning mechanism, and labeling mechanism automatically presses label to the surface of inductance element, and conveying mechanism completes material belt guiding, covers adhesive tape and fixed-length cutting, realizes the full-automatic continuous operation from reel feeding to finished product output, effectively avoids label sticking, blistering and missing problem, significantly improves labeling precision and production efficiency.

The invention discloses a horizontal type self-adaptive girder belt winding unit which comprises an assembly bottom plate, a self-adaptive material pressing and winding mechanism and a split type material collecting and discharging mechanism. The self-adaptive material pressing and winding mechanism comprises a sliding assembly plate, a pressing roller is rotationally assembled above the sliding assembly plate, and a pressing cover is arranged above the pressing roller in a matched mode. And the split type winding and unwinding mechanism comprises an unwinding wheel, the unwinding wheel is rotationally assembled on one side of the pressing roller, a guide wheel is arranged above the unwinding wheel, a hot air gun nozzle is arranged above the guide wheel, and a winding wheel is rotationally assembled on the side, away from the unwinding wheel, of the assembly bottom plate. According to the horizontal type self-adaptive girder belt winding unit, when a fiber prepreg belt is wound and formed, the winding tension and the winding speed can be automatically adjusted, the fiber winding stability is guaranteed, the product quality is improved, the risk that a PE isolation film is stacked, twisted or snapped in the recycling process is reduced, and the production efficiency is improved. And the overall production efficiency and the regularity of products can be improved.

The invention relates to the technical field of plastic waste recycling, in particular to an electrostatic separation device and method for plastic waste recycling. The electrostatic separation device comprises a machine frame, an electrostatic separation unit and a feeding unit, the electrostatic separation unit comprises an electrostatic roller and an electrostatic plate, a separation base is arranged in the machine frame, the electrostatic roller is rotationally connected in the separation base, the electrostatic plate is arranged above the electrostatic roller in an inclined mode, different potential differences are formed between the electrostatic plate and the electrostatic roller, and a separation area space is formed. And the feeding unit is used for sorting the electrified materials under the action of electric field force and comprises a feeding end and a discharging end, and the discharging end is arranged corresponding to an inlet of the sorting area space. Dynamic matching and precise alignment of the sorting electric field form and the material incidence track are achieved, sorting precision and adaptability to different materials are remarkably improved, and the device is particularly suitable for sorting mixed plastic waste with complex components and similar physical properties and has remarkable advantages.

The utility model relates to wall cloth production technical field, and disclose a kind of surface treatment device for fabric wall cloth processing, including mounting cover, the side surface of mounting cover is equipped with discharge port, the inside symmetry of mounting cover is equipped with two mounting plate. In the utility model, first guide roller, second guide roller and the sticky hair band wrapped outside thereof using isosceles triangle layout, form double-sided contact path. When wall cloth presents S shape and goes around, sticky hair band efficiently sticks to remove double-sided dust, and from the source, spray impurities are eliminated. Spring push pressure rod makes second guide roller always press wall cloth, material elastic deformation is compensated in time;First telescopic link adjusts the initial height of second guide roller by sliding block, and the reference tension of different thickness wall cloth is adapted;Rotary motor drives swing rod to adjust the inclination of third guide roller, and secondary tightening fine adjustment is carried out to pre-spraying section, and the three synergies ensure that wall cloth maintains constant tension in spraying channel, avoid uneven coating caused by wrinkle or slack.

The utility model relates to the technical field of water-jet looms, and discloses a water-jet loom thread pressing device which comprises a main body plate, connecting columns are fixedly connected to the two sides of the middle of the outer wall of the front end of the main body plate, and first hinge pieces are fixedly connected to the upper portion and the lower portion of the outer wall of the front end of the main body plate. The upper portion and the lower portion, close to the first hinge piece, of the outer wall of the front end of the main body plate are fixedly connected with second hinge pieces. According to the yarn pressing device of the water-jet loom, the electric telescopic rod is enabled to move inwards and outwards respectively by starting the electric telescopic rod, the position of the fixing plate can be accurately adjusted by the electric telescopic rod, so that the tension of yarns is directly controlled, and the accurate control is beneficial to ensuring that the yarns keep constant tension in the weaving process; the elastic degree of the yarn can be rapidly adjusted in place, different weaving requirements are met, and the yarn pressing device can adapt to various different weaving conditions and yarn materials due to the design of the electric telescopic rod.

The utility model discloses a filter membrane tensioning device for filter element production. The filter membrane tensioning device comprises a magnetic powder brake, a tensioning roller, two pushing air cylinders and a membrane clamping roller. The magnetic powder brake is connected with the tensioning roller through a coupler so as to provide tensioning torque for the tensioning roller. The two pushing cylinders are used for pushing the film clamping roller to move up and down; linear bearings are assembled at the two ends of the film clamping roller, and polished shafts are arranged on the linear bearings at the two ends; mounted bearings are arranged at the upper ends of the optical shafts at the two ends; a guide roller is mounted between the mounted bearings at the two ends; the membrane clamping roller moves up and down along the optical axis under the action of the pushing force of the pushing air cylinder so as to clamp a filter membrane with the tensioning roller; the braking torque of the magnetic powder brake is set and kept constant through the PLC; through cooperation of the magnetic powder brake and the PLC, the braking torque is accurately controlled according to a filter membrane tensioning force calculation formula, it is ensured that the tension of a filter membrane is constant in the winding process, and the overall quality of a filter element is improved.

The invention discloses a take-up device for welding wire production, and relates to the technical field of welding wire production. The take-up device for welding wire production comprises a bottom plate, a welding wire body, a take-up wheel and a plurality of first supporting plates arranged in an array mode, the first supporting plates are fixedly connected to the top of the bottom plate, and the side wall of each first supporting plate is rotationally connected with two symmetrically-arranged first guide wheels through a first rotating shaft; the top of the bottom plate is fixedly connected with a second supporting plate. According to the take-up device for welding wire production, tensioning operation can be conducted on a welding wire body, constant tensioning force is guaranteed, the situation that the welding wire body is too tight to cause deformation of the welding wire body and too loose to cause looseness or scattering of the welding wire body in the take-up process can be avoided, meanwhile, the welding wire body can be evenly taken up on the take-up wheel conveniently, and in the conveying process of the welding wire body, the welding wire body can be conveyed to the take-up wheel conveniently. And automatic cleaning and automatic blowing cleaning can be conducted on the surface of the welding wire body, the take-up efficiency and quality are guaranteed, and then the production quality is guaranteed.

The invention relates to a device for processing metal strips, comprising: a feeding unit (3) for feeding a strip (4); a strip drive (5, 5'), the strip drive comprising at least one controllable traction device drive unit (10, 10') with a support (17) and a motor (13, 13'), a driven endless traction device (14, 14'), and a pressing unit (11, 11'), wherein the power of the motor (13, 13') and the The pressing force (F1, F2, F5, F6) of the pressing unit (11, 11') can be variably adjusted; a rolling device (6) for flexible rolling; a measuring device (7, 35, 36) for detecting physical parameters (F4, F6, s) of a component acting on the strip (4); wherein the drive power of the motor (13, 13') can be adjusted based on the physical parameters (F4, F6, s) determined by the measuring device (7, 35, 36). The invention also relates to a corresponding method for processing a strip.

The utility model relates to a bending control assembly and a conveying system.The bending control assembly comprises a bending control pipe fitting and a pull wire, the bending control pipe fitting comprises an outer bending control catheter and an inner bending control catheter extending out of the far end of the outer bending control catheter, and the outer bending control catheter can drive the inner bending control catheter to bend on a first plane; the stay wire can pull the far end of the inner control bent catheter to be bent on a second plane relative to the outer control bent catheter, the second plane intersects with the first plane, when the tensile stress of the stay wire reaches a preset value, the rigidity of the stay wire is reduced, reversible tensile deformation occurs, and therefore the stroke change of the stay wire in the torsion process of the control bent pipe fitting is compensated; and the pulling force of the stay wire on the internal control bent conduit is constant. According to the bending control assembly and the conveying system, the stroke change of the stay wire in the torsion process along with the bending control pipe fitting is compensated by using the tensile deformation of the stay wire, so that the tension of the stay wire on the internal bending control guide pipe is constant, the bending control angle of the internal bending control guide pipe is maintained, the bending change during torsion is avoided, and the torsion control performance is improved.

The invention discloses a high-frequency welding aluminum alloy pipe strip guide-in device, and relates to the technical field of pipe machining, the high-frequency welding aluminum alloy pipe strip guide-in device comprises a high-frequency welding machine guide-in frame, a side guide vertical plate and an anti-jumping downward pressing frame, the side guide vertical plate is installed on the top of the high-frequency welding machine guide-in frame, and a guide wheel fixing frame is installed on the opposite side of the side guide vertical plate; the strip edge guide wheel is installed on the inner side of the guide wheel fixing frame, and the strip edge sliding groove is formed in the opposite end of the strip edge guide wheel. The strip edge guide assembly is arranged at the top of the high-frequency welding machine guide-in frame, the two side ends of an aluminum alloy strip slide on the inner sides of the strip edge guide wheels and move in the direction away from the material guide frame to be conveyed to the working position of the high-frequency welding machine, and sliding limiting ensures that the aluminum alloy strip is kept in a stable posture and position in the conveying process; and deviation or shaking of the strip materials in the conveying process is prevented, stable strip material conveying is beneficial for a high-frequency welding machine to conduct welding work with higher efficiency, and stable conveying and precise welding of different strip materials are achieved.

This utility model relates to a belt conveyor's waist wheel weight trolley, including a downward conveyor belt, two fixed pulleys, a redirecting roller, a waist wheel weight, and a steel structure fixed frame. Its key feature is that it further includes a moving trolley mechanism and a fixed guide rail frame. The moving trolley mechanism includes a guide wheel frame and moving guide wheels. The guide wheel frame is a rectangular moving trolley body composed of a transverse frame and a longitudinal frame perpendicularly connected to the transverse frame. An upper fixed frame and a lower fixed frame are fixed parallel to each other within the rectangular moving trolley body. Moving guide wheels are located at the four corners of the longitudinal frame. The fixed guide rail frame is a channel steel structure fixed guide rail frame. The two flanges of the channel steel structure fixed guide rail frame are correspondingly fastened to the outer sides of the moving guide wheels fixed to the rectangular moving trolley body, forming a guide rail frame, allowing the moving guide wheels to roll in contact with the guide wheel frame. Its advantages are: effectively reducing belt damage caused by belt misalignment and increasing the utilization rate of the conveyor belt.