A stainless steel modular combined conveying device for leather conveying

Abstract

The present invention discloses a stainless steel modular combined conveying device for conveying leather, including two side baffles, the two side baffles are arranged opposite to each other, and a plurality of lower connecting rods are arranged equidistantly on the bottom sides of two outer wall panels; it also includes: outer wall panels and inner wall panels, and a conveying assembly, wherein the side baffles are divided into two parts, the outer wall panels and the inner wall panels. The improved leather stainless steel modular combined conveyor belt is a brand-new structural form, which is composed of link modules, chain plates, connecting rods, sliders, etc.; the material of the chain plates can be changed to improve corrosion resistance according to different on-site usage conditions, and the loading capacity can be changed by adjusting the number of link modules and the parameters of the chain plates and connecting rods; the structural form is a combination, which is easy to maintain and takes a short maintenance time; the structural design of the whole set of equipment is close to seamless combination, avoiding the phenomenon of stuck and jammed, and can well meet the transportation needs of leather in the leather production process.

Description

Technical Field

[0001] The invention relates to the technical field of leather processing equipment, in particular to a stainless steel module combined conveying equipment for conveying leather. Background Art

[0002] Leather is a denatured and non-perishable animal skin obtained through physical and chemical processes such as dehairing and tanning. Leather is composed of natural protein fibers tightly woven in three-dimensional space. Its surface has a special grain layer with natural grain and luster and a comfortable feel. In the process of leather production and processing, leather raw materials are generally transported by transmission equipment.

[0003] The circulation of leather materials itself is an emerging technology for realizing factory automation and intelligence. Currently, traditional belt conveyors, plastic chain conveyors, and stainless steel chain conveyors are used. Due to the particularity of leather factory production, production equipment must meet the following conditions: large load capacity, corrosion resistance, durability, and easy maintenance. Traditional conveying equipment is limited by equipment materials and structures, and may be broken, corroded, stuck, take a long time to repair, and have high maintenance costs during use. It cannot meet the transportation needs of leather in the leather production process. Summary of the invention

[0004] The object of the present invention is to provide a stainless steel module combined conveying device for leather conveying, so as to solve the above-mentioned problems.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:.

[0006] A stainless steel modular combined conveying device for conveying leather, comprising two side baffles, the two side baffles are arranged opposite to each other, and a plurality of lower connecting rods are arranged equidistantly on the bottom sides of two outer wall panels;

[0007] Also includes:

[0008] The outer wall panel and the inner wall panel, the conveying assembly, the side baffle is divided into two parts, the outer wall panel and the inner wall panel, the inner wall panel is arranged on the inner side of the corresponding outer wall panel, and the inner wall panel is in contact with the corresponding outer wall panel, each of the lower connecting rods is fixedly connected to the two outer wall panels by screws, and the two ends of the two side baffles are jointly provided with a driving assembly;

[0009] A conveying assembly is arranged between two side baffles.

[0010] Preferably, the driving assembly includes a reduction motor group, and a driving shaft and a tensioning shaft are rotatably penetrated at both ends of the side baffle plate. Two bearing seats and two driving end guard plates are rotatably sleeved relative to the outer peripheral side of the driving shaft. The bearing seats and the corresponding driving end guard plates are located on both sides of the corresponding side baffle plate, and the driving end guard plates are fixedly connected to the corresponding bearing seats and the corresponding side baffle plate by a plurality of bolts.

[0011] By adopting the above technical solution, the position between the outer wall panel and the corresponding inner wall panel is fixed by extrusion between the bearing seat and the drive end guard plate, so that the assembly of the side baffle is more stable.

[0012] Preferably, a driving sprocket is fixedly installed at one end of the driving shaft away from the two bearing seats, and the reduction motor group is fixedly installed on the side baffle plate close to the driving sprocket by screws, and a driving sprocket is fixedly installed at the output end of the reduction motor group, and the outer peripheral side of the driving sprocket and the outer peripheral side of the driving sprocket are jointly meshed with a chain, and the outer peripheral side of the driving shaft and the outer peripheral side of the tensioning shaft are both sleeved with a plurality of gears, and the plurality of gears are located between the two side baffle plates, and the driving shaft and the tensioning shaft are both interference fit with the corresponding gears.

[0013] By adopting the above technical solution, the driving sprocket, the driving sprocket and the reduction motor group cooperate with each other to drive the drive shaft and the gear to rotate on one side, and then the friction between the gear tooth grooves and the corresponding link module A pushes several connecting rods to move along a certain trajectory. There is no need to set up too many driving sources, which reduces the size of the device and facilitates the use of the device.

[0014] Preferably, a slide base is fixedly installed at a position corresponding to the tensioning shaft on one side of the side baffle through screws, and a tensioning end guard plate is fixedly installed at a position corresponding to the slide base on the other side of the side baffle through screws, and the tensioning end guard plate and the slide base are both sleeved on the outer circumference of the corresponding tensioning shaft, two limit blocks are rotatably sleeved on both ends of the tensioning shaft through bearings, and each limit block is slidably installed in the corresponding slide base, a screw rod is threaded through the inner thread of the slide base, and one end of the screw rod located in the corresponding slide base is rotatably connected to the corresponding limit block.

[0015] By adopting the above technical solution, the position of the tensioning shaft in the side baffle is adjusted by the screw sleeve, and then the distance between the tensioning shaft and the driving shaft is adjusted, so that the fit between the gear and the link module A is tighter.

[0016] Preferably, the conveying assembly includes a plurality of connecting rods, and the plurality of connecting rods are waist-shaped and equidistantly distributed on the outer peripheral sides of the plurality of gears. The outer peripheral sides of the connecting rods are sleeved with a plurality of link modules A, and a slider A is provided between two corresponding link modules A, and the slider A is rotatably connected with the corresponding link module A through a rotating shaft, both ends of the connecting rods are rotatably sleeved with link modules B, and a slider B is provided between two corresponding link modules B, and both ends of the slider B are rotatably connected with the corresponding two link modules B through a rotating shaft, chain plates B are fixedly installed on the outer sides of the plurality of sliders B by screws, and a plurality of chain plates A are fixedly installed on the outer sides of the plurality of link modules B by screws, and the chain plates A and chain plates B are fixedly connected with the corresponding link modules A by screws.

[0017] By adopting the above technical solution, through the mutual cooperation of link module A, slider A, link module B and slider B, while fixing the position between chain plate A and chain plate B, chain plate A and chain plate B can be bent inward to a certain extent, thereby increasing the deformation resistance of the conveyor belt without affecting the cyclic rotation of the conveyor belt.

[0018] Preferably, a plurality of wear-resistant strip guide rails are provided above the plurality of lower connecting rods, and each wear-resistant strip guide rail is in contact with the corresponding chain plate A and chain plate B, a plurality of wear-resistant strip brackets are provided between the wear-resistant strip guide rails and the corresponding lower connecting rods, and each wear-resistant strip bracket is fixedly connected to the corresponding wear-resistant strip guide rail and the corresponding lower connecting rod by screws.

[0019] By adopting the above technical solution, the lower chain plates A and B are supported and limited by wear-resistant guide rails, which facilitates the smooth movement of the lower chain plates A and B.

[0020] Preferably, several slider tracks are provided between the several connecting rods, and both ends of the several slider tracks are arranged in an arc shape, the top side of the slider track is in contact with the corresponding slider A, and several upper connecting rods are fixedly installed under the several slider tracks by screws, and both ends of each upper connecting rod are fixedly connected to the two side baffles.

[0021] By adopting the above technical solution, the upper chain plates A and B are supported and limited by the interference between the slider guides and the corresponding sliders B, thereby further enhancing the anti-deformation strength of the upper chain plates A and B.

[0022] Preferably, a wear-resistant edge guard is provided between the side baffle and the corresponding slider B and the corresponding link module B, and the wear-resistant edge guard is located between the corresponding driving end guard plate and the corresponding tensioning end guard plate. The wear-resistant edge guard is fixedly connected to the corresponding side baffle, and the wear-resistant edge guard is in contact with the corresponding slider B and the corresponding link module B.

[0023] By adopting the above technical solution, the contact between the slider B and the link module B is isolated by the wear-resistant edge guard, which prevents the slider B and the link module B from damaging the side baffle when moving, thereby affecting the overall support of the device by the side baffle.

[0024] Compared with the prior art, the invention has the following beneficial effects: the improved leather stainless steel modular combined conveyor belt is a brand-new structural form, which is composed of link modules, chain plates, connecting rods, sliders, etc.; the material of the chain plates can be changed to improve corrosion resistance according to different on-site usage conditions, and the loading capacity can be changed by adjusting the number of link modules and the parameters of the chain plates and connecting rods; the structural form is a combination, which is convenient for maintenance and has a short maintenance time; the structural design of the whole set of equipment is close to seamless combination, avoiding the phenomenon of stuck and jammed, and can well meet the transportation needs of leather in the leather production process, and its specific contents are as follows;

[0025] 1. Chain plates A and chain plates B are provided, and the transmission belt of the transmission device is composed of link modules A, link modules B, chain plates A, chain plates B, connecting rods, sliders A and sliders B; the materials of chain plates A and chain plates B can be changed to improve corrosion resistance according to different on-site usage conditions, and the loading capacity of the device can be changed by adjusting the number of link modules A, the number of link modules B, the number of chain plates A and chain plates, the number of chain plates B, the number of sliders A, the number of sliders B and the connecting rod parameters. The device structure is an assembly, and when some parts are damaged, only the corresponding parts need to be replaced. The device is easy to maintain and the maintenance time is short. The structural design of the whole set of equipment is close to seamless combination to avoid jamming. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is an overall schematic diagram of the present invention;

[0027] Figure 2 It is a schematic diagram of the bottom structure of the present invention as a whole;

[0028] Figure 3 It is a schematic diagram of the overall structure of the reduction motor unit of the present invention;

[0029] Figure 4 For the present invention Figure 1 A schematic diagram of the enlarged structure at A in the middle;

[0030] Figure 5 For the present invention Figure 1 Schematic diagram of the enlarged structure at point B in the middle.

[0031] In the figure: 1. side baffle; 2. exterior wall panel; 3. interior wall panel; 4. drive assembly; 41. drive shaft; 42. tensioning shaft; 43. bearing seat; 44. drive end guard plate; 45. driving sprocket; 46. drive sprocket; 47. chain; 48. gear; 49. slideway base; 410. tensioning end guard plate; 411. limit block; 412. lead screw; 413. reduction motor unit; 5. conveying assembly; 51. connecting rod; 52. link module A; 53. slider A; 54. link module B; 55. slider B; 56. chain plate B; 57. chain plate A; 58. wear-resistant strip guide rail; 59. wear-resistant strip bracket; 510. slider track; 511. upper connecting rod; 6. lower connecting rod; 7. wear-resistant edge guard. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] See also Figure 1-4The present invention provides a technical solution: a stainless steel module combined conveying device for leather conveying, comprising two side baffles 1, the two side baffles 1 are arranged opposite to each other, and a plurality of lower connecting rods 6 are arranged equidistantly on the bottom sides of two outer wall panels 2; it also includes: outer wall panels 2 and inner wall panels 3, a conveying component 5, the side baffle 1 is divided into two parts, the outer wall panel 2 and the inner wall panel 3, the inner wall panel 3 is arranged on the inner side of the corresponding outer wall panel 2, and the inner wall panel 3 is in contact with the corresponding outer wall panel 2, each lower connecting rod 6 is fixedly connected to the two outer wall panels 2 by screws, and a driving component 4 is commonly provided at both ends of the two side baffles 1. The driving assembly 4 includes a reduction motor group 413, and the two ends of the side baffle 1 are rotatably penetrated by a driving shaft 41 and a tensioning shaft 42. The middle part of the driving shaft 41 and the middle part of the tensioning shaft 42 are both quadrangular prism-shaped. The hole on the side baffle 1 corresponding to the tensioning shaft 42 is a waist-shaped hole. The outer peripheral side of the driving shaft 41 is relatively rotatably sleeved with two bearing seats 43 and two driving end guard plates 44. The bearing seats 43 and the corresponding driving end guard plates 44 are located on both sides of the corresponding side baffle 1, and a There is a bearing seat 43 pad, and the bearing seat 43 pad is rotatably sleeved on the outer peripheral side of the drive shaft 41. A number of bolts are inserted into the bearing seat 43, and the bolts penetrate the corresponding bearing seat 43, the corresponding bearing seat 43 pad and the corresponding side baffle 1 and are inserted into the corresponding drive end guard plate 44 and are threadedly connected to the corresponding drive end guard plate 44. A driving sprocket 45 is fixedly installed at one end of the drive shaft 41 away from the two bearing seats 43. The reduction motor group 413 is fixedly installed on the side baffle 1 close to the driving sprocket 45 by screws. The output end of the high-speed motor group 413 is fixedly equipped with a driving sprocket 46, and the outer peripheral side of the driving sprocket 46 and the outer peripheral side of the active sprocket 45 are meshed with a chain 47, and the outer peripheral side of the driving shaft 41 and the outer peripheral side of the tensioning shaft 42 are sleeved with a plurality of gears 48, and the plurality of gears 48 are located between the two side baffles 1, and the driving shaft 41 and the tensioning shaft 42 are interference fit with the corresponding gears 48, and a slide base 49 is fixedly installed at a position corresponding to the tensioning shaft 42 on one side of the side baffle 1 by screws, and the other side of the side baffle 1 A tensioning end guard plate 410 is fixedly installed at the position of the slide base 49 on one side by screws, and the tensioning end guard plate 410 and the slide base 49 are both sleeved on the outer circumference of the corresponding tensioning shaft 42, and two limit blocks 411 are rotatably sleeved at both ends of the tensioning shaft 42 through bearings, and each limit block 411 is slidably installed in the corresponding slide base 49, and a screw rod 412 is threaded through the inner thread of the slide base 49, and one end of the screw rod 412 located in the corresponding slide base 49 is rotatably connected to the corresponding limit block 411.The position between the outer wall panel 2 and the corresponding inner wall panel 3 is fixed by squeezing between the bearing seat 43 and the driving end guard plate 44, and the driving shaft 41 and the gear 48 are driven by one side to rotate through the mutual cooperation between the active sprocket 45 and the driving sprocket 46 and the reduction motor group 413, and then the friction between the tooth groove of the gear 48 and the corresponding link module A52 pushes the several connecting rods 51 to move along a certain trajectory, and the position of the tensioning shaft 42 in the side baffle 1 is adjusted by the screw rod 412 sleeve, and then the distance between the tensioning shaft 42 and the driving shaft 41 is adjusted, so that the cooperation between the gear 48 and the link module A52 is tighter.

[0034] according to Figure 1-5 As shown, the conveying assembly 5 is arranged between the two side baffles 1. The conveying assembly 5 includes a plurality of connecting rods 51, and the plurality of connecting rods 51 are waist-shaped and equidistantly distributed on the outer peripheral side of the plurality of gears 48. The outer peripheral side of the connecting rod 51 is sleeved with a plurality of link modules A52, and the link modules A52 corresponding to the gears 48 are inserted into the tooth grooves of the corresponding gears 48. A slider A53 is arranged between the two corresponding link modules A52, and the slider A53 is rotatably connected to the corresponding link module A52 through a rotating shaft. Link modules B54 are rotatably sleeved at both ends of the connecting rod 51, and a slider B55 is arranged between the two corresponding link modules B54, and the two ends of the slider B55 are rotatably connected to the two corresponding link modules B54 through a rotating shaft. A chain plate B56 is fixed on the outer side of the slider B55 by screws, and a plurality of chain plates A57 are fixed on the outer sides of the plurality of link modules B54 by screws. The chain plates A57 and B56 are fixedly connected to the corresponding link modules A52 by screws, and the chain plates A57 are in contact with the corresponding chain plates B56. A wear-resistant edge guard 7 is provided between the side guard plate 1 and the corresponding slider B55 and the corresponding link module B54, and the wear-resistant edge guard 7 is located between the corresponding driving end guard plate 44 and the corresponding tensioning end guard plate 410. The wear-resistant edge guard 7 is fixedly connected to the corresponding side guard plate 1, and the wear-resistant edge guard 7 is in contact with the corresponding slider B55 and the corresponding link module B54. The wear-resistant edge guard 7 isolates the contact between the slider B55 and the link module B54 to prevent the slider B55 and the link module B from damaging the side baffle 1 during movement. Through the cooperation among the link module A52, the slider A53, the link module B54 and the slider B55, while fixing the position between the chain plate A57 and the chain plate B56, the friction between the slider B55 and the link module B54 allows the chain plate A57 and the chain plate B56 to bend inward to a certain extent only.

[0035] A plurality of wear-resistant guide rails 58 are arranged above the plurality of lower connecting rods 6, and each wear-resistant guide rail 58 is in contact with the corresponding chain plate A57 and chain plate B56. A plurality of wear-resistant brackets 59 are arranged between the wear-resistant guide rails 58 and the corresponding lower connecting rods 6, and each wear-resistant bracket 59 is fixedly connected with the corresponding wear-resistant guide rails 58 and the corresponding lower connecting rods 6 by screws. A plurality of slider rails 510 are arranged between the plurality of connecting rods 51, and both ends of the plurality of slider rails 510 are arc-shaped, and the top side of the slider rails 510 is in contact with the corresponding slider A53. A plurality of upper connecting rods 511 are fixedly installed below the plurality of slider rails 510 by screws, and both ends of each upper connecting rod 511 are fixedly connected with the two side baffles 1. The lower chain plate A57 and chain plate B56 are supported and limited by the wear-resistant guide rails 58, and the upper chain plate A57 and chain plate B56 are supported and limited by the friction between the slider guide rails and the corresponding sliders B55.

[0036] Working principle: Before the device is used, the screw rod 412 is rotated to push the limit block 411 to move in the slide base 49, thereby adjusting the distance between the tensioning shaft 42 and the driving shaft 41, so that the gear 48 straightens the chain plates A57 and B56 that form the ring, and inserts part of the corresponding link module A52 into the tooth groove of the corresponding gear 48;

[0037] When the device is used to transport leather, the reduction gear unit is started to drive the driving sprocket 46 to rotate, and the gear 48 on the driving shaft 41 is driven to rotate through the chain 47, the driving sprocket 45 and the driving shaft 41. Due to the interference between the groove of the gear 48 and the corresponding link module A52, the link module A52 moves along a predetermined trajectory, and then drives the slider B55 and the link module B54 to rotate together through the connecting rod 51. At the same time, due to the rotation between the slider A53 and the link module A52 and the rotation between the slider B55 and the link module B54, a number of chain plates A57 and chain plates B56 can be bent inward to a certain extent, so that a number of chain plates A57 and chain plates B56 are circulated around a number of gears 48 in a waist-shaped trajectory, and finally the leather is moved along a certain trajectory through the chain plates A57 and chain plates B56;

[0038] When the chain plate A57 or the chain plate B56 is damaged due to corrosion, the screws on the damaged chain plate A57 or the chain plate B56 can be directly unscrewed. At this time, the damaged chain plate A57 or the damaged chain plate B56 can be directly removed from the device and replaced with new chain plates A57 and B56.

[0039] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0040] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A stainless steel modular combined conveying device for conveying leather, comprising two side baffles (1), the two side baffles (1) are arranged opposite to each other, and a plurality of lower connecting rods (6) are arranged equidistantly on the bottom sides of two outer wall panels (2); It is characterized in that Also includes: An outer wall panel (2) and an inner wall panel (3), a conveying assembly (5), the side baffle (1) being divided into two parts, the outer wall panel (2) and the inner wall panel (3), the inner wall panel (3) being arranged on the inner side of the corresponding outer wall panel (2), and the inner wall panel (3) being in contact with the corresponding outer wall panel (2), each of the lower connecting rods (6) being fixedly connected to the two outer wall panels (2) by screws, and a driving assembly (4) being provided at both ends of the two side baffles (1); A conveying assembly (5), wherein the conveying assembly (5) is arranged between the two side baffles (1); The driving assembly (4) comprises a reduction motor group (413), a driving shaft (41) and a tensioning shaft (42) are rotatably provided at both ends of the side baffle (1), two bearing seats (43) and two driving end guard plates (44) are relatively rotatably sleeved on the outer peripheral side of the driving shaft (41), the bearing seats (43) and the corresponding driving end guard plates (44) are located on both sides of the corresponding side baffle (1), and the driving end guard plates (44) are fixedly connected to the corresponding bearing seats (43) and the corresponding side baffle (1) by a plurality of bolts; A driving sprocket (45) is fixedly mounted on one end of the driving shaft (41) away from the two bearing seats (43); the reduction motor group (413) is fixedly mounted on a side baffle (1) close to the driving sprocket (45) by means of screws; a driving sprocket (46) is fixedly mounted on the output end of the reduction motor group (413); a chain (47) is meshedly sleeved on the outer peripheral side of the driving sprocket (46) and the outer peripheral side of the driving sprocket (45); a plurality of gears (48) are sleeved on the outer peripheral side of the driving shaft (41) and the outer peripheral side of the tensioning shaft (42); and the plurality of gears (48) are located between the two side baffles (1); and the driving shaft (41) and the tensioning shaft (42) are both interference fit with the corresponding gears (48); A slide base (49) is fixedly installed at a position corresponding to the tensioning shaft (42) on one side of the side baffle (1) by screws, and a tensioning end guard plate (410) is fixedly installed at a position corresponding to the slide base (49) on the other side of the side baffle (1) by screws, and the tensioning end guard plate (410) and the slide base (49) are both sleeved on the outer peripheral side of the corresponding tensioning shaft (42), and two limit blocks (411) are rotatably sleeved at both ends of the tensioning shaft (42) through bearings, and each limit block (411) is slidably installed in the corresponding slide base (49), and a screw rod (412) is threaded through the inner thread of the slide base (49), and one end of the screw rod (412) located in the corresponding slide base (49) is rotatably connected to the corresponding limit block (411); The conveying assembly (5) comprises a plurality of connecting rods (51), the plurality of connecting rods (51) being equidistantly distributed on the outer peripheral side of the plurality of gears (48) in a waist shape, a plurality of link modules A (52) being sleeved on the outer peripheral side of the connecting rod (51), and a slider A (53) being provided between two corresponding link modules A (52), the slider A (53) being rotatably connected to the corresponding link module A (52) via a rotating shaft, and link modules B (54) being rotatably sleeved on both ends of the connecting rod (51), and the corresponding A slider B (55) is provided between the two link modules B (54), and both ends of the slider B (55) are rotatably connected to the corresponding two link modules B (54) through a rotating shaft, and chain plates B (56) are fixedly installed on the outer sides of some of the sliders B (55) by screws, and chain plates A (57) are fixedly installed on the outer sides of some of the link modules B (54) by screws, and the chain plates A (57) and chain plates B (56) are fixedly connected to the corresponding link modules A (52) by screws.

2. The stainless steel module combined conveying device for leather conveying according to claim 1 is characterized in that: A plurality of wear-resistant guide rails (58) are arranged above the plurality of lower connecting rods (6), and each wear-resistant guide rail (58) is in contact with the corresponding chain plate A (57) and the chain plate B (56). A plurality of wear-resistant strip brackets (59) are arranged between the wear-resistant guide rails (58) and the corresponding lower connecting rods (6), and each wear-resistant strip bracket (59) is fixedly connected to the corresponding wear-resistant guide rail (58) and the corresponding lower connecting rod (6) by screws.

3. The stainless steel module combined conveying device for leather conveying according to claim 2 is characterized in that: A plurality of slider rails (510) are arranged between the plurality of connecting rods (51), and both ends of the plurality of slider rails (510) are arranged in an arc shape, the top side of the slider rails (510) is in contact with the corresponding slider A (53), and a plurality of upper connecting rods (511) are fixedly installed below the plurality of slider rails (510) by means of screws, and both ends of each upper connecting rod (511) are fixedly connected to the two side baffles (1).

4. The stainless steel module combined conveying device for leather conveying according to claim 3 is characterized in that: A wear-resistant edge guard (7) is provided between the side baffle (1) and the corresponding slider B (55) and the corresponding link module B (54), and the wear-resistant edge guard (7) is located between the corresponding driving end guard plate (44) and the corresponding tensioning end guard plate (410), the wear-resistant edge guard (7) is fixedly connected to the corresponding side baffle (1), and the wear-resistant edge guard (7) is in contact with the corresponding slider B (55) and the corresponding link module B (54).

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