CN213266558U - Leather mending device - Google Patents

Abstract

The utility model belongs to the technical field of leather processing, in particular to a leather repairing device, which comprises a frame, a leather conveying component, a scraping roller, a first driving component and a cleaning component; the cleaning assembly is positioned at one side of the leather conveying assembly and is used for cleaning the leather conveying assembly; two ends of the scraping roller are rotatably connected to the rack and are driven to rotate by the first driving assembly; the surface of the scraping roller is provided with a plurality of scraping teeth, the scraping roller is positioned above the leather conveying assembly, and a repairing gap is formed between the scraping roller and the leather conveying assembly; the leather passes mend the clearance and warp its transport of leather conveying component drive, thick liquids add in scrape the roller on the surface or the leather is on the surface, first drive assembly drive scraping roller rotates, scrapes when the tooth that scrapes on the roller surface is pressed close to or contacts the leather surface, evenly paints the thick liquids on the leather surface to repair the position of leather surface scratch and pit, scribble and mend effectually, product quality is good, and work efficiency is high simultaneously.

Description

Leather mending device

Technical Field

The utility model belongs to the technical field of the leather processing, especially, relate to a leather mending device.

Background

Leather is widely used in daily articles of people, such as leather shoes, leather clothes, leather bags and the like. The surface of the natural leather has defects such as scratches, pits and the like, and the positions of the scratches and the pits on the surface of the leather need to be repaired to ensure that the surface of the leather is smooth. In the prior art, a worker uses a scraper to dip slurry, and then coats the slurry on the surface of leather, so that the slurry is filled in the positions of scratches and pits on the surface of the leather, and the leather is repaired. However, the mode of repairing the leather manually is adopted, the coating and repairing uniformity of the sizing agent has great difference, the quality of the product is not easy to control, and meanwhile, the working efficiency is low.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a leather mending device aims at solving the artifical mode of mending to the leather of adopting among the prior art, and thick liquids are scribbled and are mended the homogeneity and have great difference, and the quality of product is difficult to the accuse, technical problem that work efficiency is low simultaneously.

In order to achieve the purpose, the embodiment of the utility model provides a leather repairing device, which comprises a frame, a leather conveying component, a scraping roller, a first driving component and a cleaning component; the leather conveying assembly and the cleaning assembly are arranged on the rack, and the cleaning assembly is positioned on one side of the leather conveying assembly and is used for cleaning the leather conveying assembly; the two ends of the scraping roller are rotatably connected to the rack and are driven to rotate by the first driving assembly; the surface of the scraping roller is provided with a plurality of scraping teeth, and the scraping roller is positioned above the leather conveying assembly and forms a repairing gap between the leather conveying assembly and the scraping roller.

Optionally, the leather conveying assembly comprises a conveying roller, a conveying roller driving part and two conveying roller bearings; the two conveying roller bearings are symmetrically arranged on the rack through a mounting frame, and two ends of the conveying roller shaft are respectively and rotatably connected to the two conveying roller bearings and driven to rotate through the conveying roller driving part; the repair gap is formed between the conveying roller and the scraping roller.

Optionally, the leather conveying assembly further comprises two lifting driving components; the two lifting driving parts are respectively connected with the two mounting frames and used for driving the conveying rollers to move up and down.

Optionally, the lifting driving component comprises a lifting driving cylinder and two Z-direction linear guide rails; the two Z-direction linear guide rails are symmetrically arranged on the rack, and the sliding blocks on the two Z-direction linear guide rails are connected with the mounting rack; the cylinder body of the lifting driving cylinder is arranged on the rack, and the driving rod of the lifting driving cylinder is connected with the mounting rack.

Optionally, the cleaning assembly comprises two oscillating bars, a hair roller and an oscillating bar driving part; the first ends of the two swing rods are rotatably connected to the rack, and the two ends of the hair roller are respectively rotatably connected to the two swing rods; the swing rod driving part is arranged on the rack and connected with the second ends of the two swing rods and drives the hair roller to abut against or be far away from the surface of the conveying roller.

Optionally, the cleaning assembly further comprises a wiper blade; the water scraping knife is arranged between the two swing rods through a water scraping knife mounting seat, and the water scraping knife is positioned on one side of the mending gap where the leather is input; the water scraping knife is abutted with the surface of the conveying roller when the hair roller is abutted with the conveying roller.

Optionally, the cleaning assembly further comprises a receptacle; the receiving box is arranged between the two swing rods and is positioned on one side of the mending gap where the leather is output; the material receiving box is provided with a scraping knife, and the scraping knife is abutted against the surface of the conveying roller when the hair roller is abutted against the conveying roller.

Optionally, the leather mending device further comprises a material guiding assembly; the material guide assembly comprises a material guide roller and a second driving part; the two ends of the guide roller are rotatably connected to the rack and driven to rotate by the second driving part, and a feeding gap is formed between the guide roller and the scraping roller.

Optionally, the material guiding assembly further comprises two material guiding roller linear guide rails, two material guiding roller cylinders and two material guiding roller bearings; the two guide roller linear guide rails are symmetrically arranged on the rack, the two guide roller bearings are respectively arranged on the sliding blocks of the two guide roller linear guide rails through guide roller mounting plates, two ends of the guide roller are respectively and rotatably connected to the two guide roller bearings, and the second driving part is arranged on the guide roller mounting plates; the two material guide roller cylinders are symmetrically arranged on the rack, and driving rods of the two material guide roller cylinders are respectively connected with the two material guide roller bearings.

Optionally, the scraping teeth are uniformly distributed on the scraping roller in an annular shape, and the scraping teeth are parallel to the axis of the scraping roller.

Compared with the prior art, the embodiment of the utility model provides a leather mending device has one of following technological effect:

1. the leather passes mend the clearance and warp its transport of leather conveying component drive, thick liquids add in scrape the roller on the surface or the leather is on the surface, first drive assembly drive scraping roller rotates, scrapes when the tooth that scrapes on the roller surface is pressed close to or contacts the leather surface, evenly paints the thick liquids on the leather surface to repair the position of leather surface scratch and pit, scribble and mend effectually, product quality is good, and work efficiency is high simultaneously.

2. The swing rod driving piece drives the hair roller to abut against the surface of the conveying roller, and when the conveying roller rotates, the hair roller takes away impurities or dust attached to the surface of the conveying roller, so that the surface of the conveying roller is kept clean.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive labor.

Fig. 1 is a schematic structural view of the leather mending device of the present invention.

Fig. 2 is a schematic structural view of the leather mending device hiding the cleaning component.

Fig. 3 is a schematic structural view of the cleaning assembly of the present invention.

Fig. 4 is a schematic structural diagram of the conveying roller and the conveying roller driving part of the present invention.

Fig. 5 is a schematic structural view of the scraping roller of the present invention.

Fig. 6 is a schematic structural view of the scraping roller and the material guiding assembly of the present invention.

Wherein, in the figures, the respective reference numerals:

a frame 100, a leather conveying component 200, a conveying roller 210, a conveying roller bearing 211, a mounting frame 212, a conveying roller driving component 220, a third gear box 221, a third motor 222, a lifting driving component 230, a lifting driving cylinder 231, a Z-direction linear guide rail 232, a scraping roller 300, a scraping tooth 301, a tooth socket 302, a first driving component 310, a first gear box 311, a first motor 312, a scraping roller bearing 320, a mending gap 330, a material guiding component 400, a material guiding roller 410, a second driving component 420, a second gear box 421, a second motor 422, a feeding gap 430, a material guiding roller linear guide rail 440, a material guiding roller cylinder 450, a material guiding roller bearing 460, a material guiding roller mounting plate 470, a cleaning component 500, a swing rod 510, a hair roller 520, a swing rod driving component 530, a swing rod driving cylinder 531, a water tank 540, an inclined water outlet end 541, a water scraping blade 550, a water scraping blade mounting seat 551, a water guide tank 552, a water storage tank 553, a material receiving box, a scraper 561.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below by referring to the drawings are exemplary and intended to explain the embodiments of the present invention and are not to be construed as limiting the present invention.

In the description of the embodiments of the present invention, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings, which is only for convenience in describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the device or element so indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the embodiments of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the embodiments of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly, e.g., as fixed or detachable connections or as an integral part; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the embodiments of the present invention can be understood by those skilled in the art according to specific situations.

In an embodiment of the present invention, referring to fig. 1 and 2, a leather mending apparatus is provided, including a frame, a leather conveying assembly, a scraping roller, a first driving assembly, and a cleaning assembly.

Referring to fig. 1, 2 and 5, the leather conveying assembly 200, the cleaning assembly and the first driving assembly 310 are mounted on the frame 100, and the cleaning assembly is located at one side of the leather conveying assembly for cleaning the leather conveying assembly. Both ends of the scraping roller 300 are rotatably connected to the frame 100 through scraping roller bearings 320 and are driven to rotate by the first driving assembly 310. The surface of the scraping roller 300 is provided with a plurality of scraping teeth 301, a tooth groove 302 is formed between every two adjacent scraping teeth 301, and the tooth groove 302 is used for containing slurry, so that the slurry is fully adhered to the surface of the scraping roller 300. The squeegee roller 300 is positioned above the hide conveying assembly 200 and forms a repair gap 330 therebetween.

Referring to fig. 1 and 5, the first driving assembly 310 includes a first gear box 311 and a first motor 312. The first gear box 311 is mounted on the frame 100, an output shaft of the first gear box 311 is fixedly connected to one end of the scraping roller 300, the first motor 312 is mounted on the first gear box 311, and a rotating shaft of the first motor 312 is fixedly connected to an input shaft of the first gear box 311. The first motor 312 drives the scraping roller 300 to rotate through the first gear box 311.

In another embodiment of the utility model, referring to fig. 1 and 5, this leather mending device's this leather mending mechanism a plurality of scrape the annular equipartition of tooth 301 in scrape the surface of roller 300, and each scrape the tooth 301 annular and link to each other in proper order, scrape tooth 301 with the axis of scraping roller 300 is parallel, when scribbling the benefit, scrapes the whole prong of tooth 301 and can press close to simultaneously or contact the leather surface, promotes that the thick liquids evenly scribble on the leather surface, scribbles effectually.

The embodiment of the utility model provides a leather mending mechanism has one of following technological effect: the leather passes mend clearance 330 and warp its transport of leather conveying component 310 drive, the thick liquids add in scrape 300 on the surface or on the leather surface (all indicate the leather input to mend the leather surface of clearance one side), first drive component 310 drive scrape roller 300 rotates, when scraping roller 300 on the surface and pressing close to or contact the leather surface, evenly scribble the thick liquids on the leather surface to repair the position of leather surface scratch and pit, scribble and mend effectually, product quality is good, and work efficiency is high simultaneously. And the excessive slurry on the leather surface is attached to the tooth grooves 302 or the scraping teeth 301 and rotates along with the scraping roller 300 when the scraping roller 300 rotates and passes, and is coated on the leather surface when the excessive slurry moves to the position of the mending clearance 300 next time.

Wherein, the slurry can be added on the surface of the scraping roller 300 or the surface of the leather by adopting the modes of manual feeding and mechanical feeding. Preferably, mechanical feeding is used, and a feeding box (not shown) is provided for placing slurry, and the feeding box can be mounted on the frame 100 through a vertical frame. The feed box lower extreme is equipped with the charge tank, the charge tank is long and thin charge tank, the length of charge tank and the width adaptation of leather, the charge tank is located the top of leather or scratch. The long and thin charging chute sliding connection has a baffle, specifically, the charging box is in the bilateral symmetry of charging chute is equipped with a pair of spout, the both ends of baffle sliding connection respectively in two the spout. A sliding closure can adjust the width of the elongated feed chute to adjust the output of slurry, while the closure can slide to completely block the elongated feed chute, causing the elongated feed chute to close.

The method can also be adopted, a slurry conveying pipe (not shown) is connected with the slurry box through a pump body, the slurry conveying pipe uses a hose, the slurry conveying pipe is installed on a sliding block of a linear module or a sliding block of a rodless cylinder, an output port of the slurry conveying pipe is positioned above the leather or the scraping roller, the output port of the slurry conveying pipe is driven to reciprocate through the linear module or the rodless cylinder, then the pump body outputs the slurry in the slurry box from the output port of the slurry conveying pipe, and the slurry falls on the surface of the scraping roller or the surface of the leather. A linear module or rodless cylinder may be mounted to the frame 100 via a vertical frame.

In another embodiment of the present invention, referring to fig. 1 and 2, the leather mending mechanism has the conveying speed of the leather conveying assembly 200 being greater than the linear speed of the scraping roller 300, the speed difference between the leather conveying assembly 200 and the scraping roller 300 is formed, and the scraping teeth 301 of the scraping roller 300 scrape the slurry on the leather surface in a scraping manner, so that the leather mending effect is good.

In another embodiment of the present invention, the leather feeding assembly 200 of the leather mending apparatus includes a feeding roller 210, a feeding roller driving part 220, and two feeding roller bearings 211.

Referring to fig. 2 and 4, the two conveying roller bearings 211 are symmetrically installed on the frame 100 through an installation frame 212, and both ends of the conveying roller shaft 210 are respectively rotatably connected to the two conveying roller bearings 211 and are driven to rotate by the conveying roller driving part 220. The mending gap 330 is formed between the conveying roller 210 and the scraping roller 300, the leather passes through the mending gap 330, and the conveying roller driving part 220 drives the conveying roller 210 to rotate, so that the leather is conveyed along the mending gap 330.

Preferably, the linear velocity of the conveying roller 210 is greater than the linear velocity of the scraping roller 300.

Referring to fig. 2 and 4, the conveying roller driving part 220 includes a third gear box 221 and a third motor 222. The third gear box 221 is mounted on the mounting frame 212, an output shaft of the third gear box 221 is fixedly connected with one end of the conveying roller 210, the third motor 222 is mounted on the third gear box 221, and a rotating shaft of the third motor 222 is fixedly connected with an input shaft of the third gear box 221. The third motor 222 drives the conveying roller 210 to rotate through the third gear box 221.

In another embodiment of the present invention, referring to fig. 2 and 4, the leather conveying assembly 200 of the leather mending mechanism further includes two lifting driving parts 230. The two lifting driving components 230 are respectively connected with the two mounting brackets 212 for driving the conveying roller 210 to move up and down. The lifting driving part 230 drives the conveying roller 210 to move upwards, thereby driving the conveying roller 210 to approach the scraping roller 300. The lifting driving part 230 drives the conveying roller 210 to move downwards, so that the conveying roller 210 is driven to be far away from the scraping roller 300, and the conveying roller 210 and the scraping roller 300 are convenient to clean and nurse.

Referring to fig. 2 and 4, the elevation driving part 230 includes an elevation driving cylinder 231 and two Z-direction linear guides 232. The two Z-direction linear guide rails 232 are symmetrically installed on the rack 100, and the sliding blocks on the two Z-direction linear guide rails 232 are connected with the mounting rack 212. The cylinder body of the lifting driving cylinder 231 is mounted on the frame 100, and the driving rod of the lifting driving cylinder 231 is connected with the mounting frame 212.

Referring to fig. 2 and 4, the driving rod of the elevating driving cylinder 231 extends to drive the mounting bracket 212 to move upward along the Z-direction linear guide 232, thereby driving the conveying roller 210 to approach the scraping roller 300. The driving rod of the lifting driving cylinder 231 contracts to drive the mounting frame 212 to move downwards along the Z-direction linear guide rail 232, so as to drive the conveying roller 210 to be far away from the scraping roller 300.

In another embodiment of the present invention, referring to fig. 1 and 3, the cleaning assembly 500 of the leather mending apparatus includes two swing links 510, a fur roller 520, and a swing link driving member 530.

Referring to fig. 1 and 3, first ends of the two swing rods 510 are rotatably connected to the frame 100 through a rotating shaft, and two ends of the hair roller 520 are rotatably connected to the two swing rods 510 through hair roller bearings, respectively. The swing link driving member 530 is mounted on the frame 100, and the swing link driving member 530 is connected to the second ends of the two swing links 510 and drives the hair roller 520 to abut against or be away from the surface of the conveying roller 210. Preferably, the length of the hair roller 520 is slightly greater than the length of the transfer roller 210.

Specifically, referring to fig. 1 and 3, the swing link driving part 530 includes two swing link driving cylinders 531. The cylinder bodies of the two swing rod driving cylinders 531 are hinged to the frame 100, and the driving rods of the two swing rod driving cylinders 531 are hinged to the second ends of the two swing rods 510 respectively. The driving rod of the swing link driving cylinder 531 extends to drive the two swing links 510 to swing upward, so that the fur roller 520 abuts against the surface of the conveying roller 210. The driving rod of the swing rod driving cylinder 531 contracts to drive the two swing rods 510 to swing downwards, so that the hair roller 520 is far away from the surface of the conveying roller 210.

Since the foreign materials or dusts on the surface of the leather are attached to the surface of the conveying roller 210 when the conveying roller 210 rotates to convey the leather, the cleaning of the conveying roller 210 is required. When the hair roller 520 abuts against the surface of the conveying roller 210, the conveying roller 210 rotates to drive the hair roller 520 to rotate, and the hair roller 520 takes away impurities or dust attached to the surface of the conveying roller 210 to keep the surface of the conveying roller 210 clean.

Referring to fig. 1 and 3, a water tank 540 is further disposed between the two swing rods 510, an inclined water outlet end 541 is disposed on the water tank 540, and the inclined water outlet end 541 is located above the hair roller 520. After the water in the water tank 540 is full, the water overflows from the inclined water outlet end 541 to flow onto the hair roller, and after the hair roller 520 wets, the cleaning effect is better. The water tank 540 is connected to a water tank (not shown) through a water pipe, and water is supplied to the water tank 540 through the water tank.

Referring to fig. 1 and 3, the cleaning assembly 500 further includes a wiper blade 550. The water scraping knife 550 is installed between the two swing rods 510 through a water scraping knife installation seat 551, and the water scraping knife 550 is located at one side of the leather input into the mending gap 330. The water scraping blade 550 abuts on the surface of the transfer roller 210 when the hair roller 520 abuts on the transfer roller 210. Preferably, the length of the water scraping blade 550 is slightly greater than the length of the conveying roller 210. When the hair roller 520 cleans the conveying roller 210, water drops are attached to the surface of the conveying roller 210, and the water drops attached to the surface of the conveying roller 210 are hung by the water scraping knife 550 when passing through the water scraping knife 550, so that the water drops are removed.

Referring to fig. 1 and 3, a water chute 552 and a water storage tank 553 are disposed on the frame below the water scraping blade 550, and the water chute 552 is disposed in an inclined manner. The water hanging from the water scraper 550 falls into the water chute 552, and then flows into the water storage tank 553 along the water chute 552 to be collected, so as to keep the equipment clean and environment-friendly.

Referring to fig. 1 and 3, the cleaning assembly 550 further includes a receiving box 560. The material receiving box 560 is installed between the two swing rods 510, and the material receiving box 560 is located at one side of the leather output from the mending gap 330. The material receiving box 560 is provided with a scraper 561, and the scraper 561 abuts against the surface of the conveying roller 210 when the hair roller 520 abuts against the conveying roller 210. Preferably, the scraper 561 has a length slightly longer than that of the conveying roller 210. When the scraping roller 300 scrapes the slurry to repair the leather, the slurry may flow from the edge of the leather to the surface of the conveying roller 210, and when the slurry attached to the surface of the conveying roller 210 passes through the scraping knife 561, the slurry is scraped by the scraping knife 561 and flows along the scraping knife 561 into the collecting box 560 to be collected, and the collected slurry is recycled.

In another embodiment of the present invention, the leather mending device further includes a material guiding assembly 400.

Referring to fig. 1, 5 and 6, the guide assembly 400 includes a guide roller 410 and a second driving part 420. Two ends of the guide roller 410 are rotatably connected to the frame 100 and are driven to rotate by the second driving member 420, a feeding gap 430 is formed between the guide roller 410 and the scraping roller 300, and the feeding gap 430 is an elongated gap for slurry to pass through. The slurry is added between the guide roller 410 and the scraping roller 300, the guide roller 410 and the scraping roller 300 rotate to push the slurry to be fully attached to the scraping groove 302 and the tooth tips of the scraping roller 300, so that the slurry is fully and uniformly coated on the surface of the leather when the scraping roller 300 passes through the leather surface at the mending clearance 330, and the scratches and pits on the surface of the leather are filled with the slurry.

Referring to fig. 1, 5 and 6, the second driving part 420 includes a second gear box 421 and a second motor 422. An output shaft of the second gear box 421 is fixedly connected to one end of the guide roller 410, the second motor 422 is installed on the second gear box 421, and a rotating shaft of the second motor 422 is fixedly connected to an input shaft of the second gear box 421. The second motor 422 drives the guide roller 410 to rotate through the second gear box 421.

In another embodiment of the present invention, referring to fig. 1, 5 and 6, the guide assembly 400 of the leather mending apparatus further includes two guide roller linear guides 440, two guide roller cylinders 450 and two guide roller bearings 460.

Referring to fig. 1, 5 and 6, the two guide roller linear guide rails 440 are symmetrically disposed on the frame 100, and the two guide roller bearings 460 are respectively mounted on the sliding blocks of the two guide roller linear guide rails 440 through the guide roller mounting plate 470. Two ends of the guide roller 410 are rotatably connected to the two guide roller bearings 460, respectively, and the second gear box 421 of the second driving member 420 is mounted on the guide roller mounting plate 470. The two material guiding roller cylinders 450 are symmetrically installed on the frame 100 through cylinder installation seats, and driving rods of the two material guiding roller cylinders 450 are respectively connected with the two material guiding roller bearings 460.

Referring to fig. 1, 5 and 6, the driving rod of the guide roller cylinder 450 extends to drive the guide roller mounting plate 470 to advance along the guide roller line 440, thereby driving the guide roller 410 to approach the scraping roller 300. The driving rod of the material guiding roller cylinder 450 contracts to drive the material guiding roller mounting plate 470 to move backwards along the material guiding roller straight line 440, so as to drive the material guiding roller 410 to be far away from the scraping roller 300, and the material guiding roller 410 and the scraping roller 300 are conveniently cleaned and nursed.

The rest of this embodiment is the same as the first embodiment, and the unexplained features in this embodiment are explained by the first embodiment, which is not described herein again.

The foregoing is a more detailed description of the present invention, taken in conjunction with the specific preferred embodiments thereof, and it is not intended that the invention be limited to the specific embodiments shown and described. To the utility model belongs to the technical field of the ordinary technical personnel, do not deviate from the utility model discloses under the prerequisite of design, its framework form can be nimble changeable, can derive series of products. But merely as a matter of simple deductions or substitutions, should be considered as belonging to the scope of patent protection of the present invention as determined by the claims submitted.

Claims (10)

1. The leather mending device is characterized by comprising a rack, a leather conveying assembly, a scraping roller, a first driving assembly and a cleaning assembly; the leather conveying assembly and the cleaning assembly are both arranged on the rack, and the cleaning assembly is positioned on one side of the leather conveying assembly and is used for cleaning the leather conveying assembly; the two ends of the scraping roller are rotatably connected to the rack and are driven to rotate by the first driving assembly; the surface of the scraping roller is provided with a plurality of scraping teeth, and the scraping roller is positioned above the leather conveying assembly and forms a repairing gap between the leather conveying assembly and the scraping roller.

2. The leather patching device of claim 1, wherein: the leather conveying assembly comprises a conveying roller, a conveying roller driving part and two conveying roller bearings; the two conveying roller bearings are symmetrically arranged on the rack through a mounting frame, and two ends of the conveying roller shaft are respectively and rotatably connected to the two conveying roller bearings and driven to rotate through the conveying roller driving part; the repair gap is formed between the conveying roller and the scraping roller.

3. The leather patching device of claim 2, wherein: the leather conveying assembly also comprises two lifting driving parts; the two lifting driving parts are respectively connected with the two mounting frames and used for driving the conveying rollers to move up and down.

4. The leather patching device of claim 3, wherein: the lifting driving part comprises a lifting driving cylinder and two Z-direction linear guide rails; the two Z-direction linear guide rails are symmetrically arranged on the rack, and the sliding blocks on the two Z-direction linear guide rails are connected with the mounting rack; the cylinder body of the lifting driving cylinder is arranged on the rack, and the driving rod of the lifting driving cylinder is connected with the mounting rack.

5. The leather patching device of claim 2, wherein: the cleaning component comprises two swing rods, a hair roller and a swing rod driving piece; the first ends of the two swing rods are rotatably connected to the rack, and the two ends of the hair roller are respectively rotatably connected to the two swing rods; the swing rod driving part is arranged on the rack and connected with the second ends of the two swing rods and drives the hair roller to abut against or be far away from the surface of the conveying roller.

6. The leather patching device of claim 5, wherein: the cleaning assembly further comprises a water scraping knife; the water scraping knife is arranged between the two swing rods through a water scraping knife mounting seat, and the water scraping knife is positioned on one side of the mending gap where the leather is input; the water scraping knife is abutted with the surface of the conveying roller when the hair roller is abutted with the conveying roller.

7. The leather patching device of claim 5, wherein: the cleaning assembly further comprises a material receiving box; the receiving box is arranged between the two swing rods and is positioned on one side of the mending gap where the leather is output; the material receiving box is provided with a scraping knife, and the scraping knife is abutted against the surface of the conveying roller when the hair roller is abutted against the conveying roller.

8. The leather patching device of any of claims 1-7, wherein: the leather mending device also comprises a material guiding component; the material guide assembly comprises a material guide roller and a second driving part; the two ends of the guide roller are rotatably connected to the rack and driven to rotate by the second driving part, and a feeding gap is formed between the guide roller and the scraping roller.

9. The leather patching device of claim 8, wherein: the material guide assembly also comprises two material guide roller linear guide rails, two material guide roller cylinders and two material guide roller bearings; the two guide roller linear guide rails are symmetrically arranged on the rack, the two guide roller bearings are respectively arranged on the sliding blocks of the two guide roller linear guide rails through guide roller mounting plates, two ends of the guide roller are respectively and rotatably connected to the two guide roller bearings, and the second driving part is arranged on the guide roller mounting plates; the two material guide roller cylinders are symmetrically arranged on the rack, and driving rods of the two material guide roller cylinders are respectively connected with the two material guide roller bearings.

10. The leather patching device of any of claims 1-7, wherein: the scraping teeth are annularly and uniformly distributed on the scraping roller, and the scraping teeth are parallel to the axis of the scraping roller.

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