Leather glue rolling device

Abstract

The invention belongs to the technical field of leather processing, and particularly relates to a leather glue rolling device which comprises a rack, a conveying belt used for conveying leather is arranged on the lower portion in the rack, a supporting table used for supporting the leather is connected to the lower portion in the rack and located on the inner side of the conveying belt, a lifting mechanism is arranged in the rack, and two sliding plates are arranged on the lifting mechanism. Electric rollers used for leveling leather are installed on the lower portions of the two sliding plates, and a two-way lead screw motor used for driving the two sliding plates to get close to each other and get away from each other is installed on the lifting mechanism. According to the leather gluing device, automatic feeding and discharging can be achieved, leather can be automatically leveled, the leather can be automatically locked and unlocked, then continuous gluing operation of the leather can be achieved, and the gluing efficiency is greatly improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of leather processing, and particularly relates to a leather roller gluing device. Background Art

[0002] Leather is the animal skin that has been denatured and is not easily perishable after physical and chemical processing such as hair removal and tanning. In some cases, in order to produce leather products with special requirements, it is necessary to combine leather with other materials (such as fabrics, synthetic materials, etc.). At this time, a thin layer of glue will be applied to the leather surface to facilitate bonding with other materials to form a composite material, enhancing the functionality or aesthetics of the product. In addition, in some cases, applying a specific type of glue can also be used to improve certain physical properties of the leather, such as improving its abrasion resistance or waterproofness.

[0003] After retrieval, a Chinese patent with the patent publication number CN212652074U, an automatic leather gluing device, includes a support table, a frame, a support table, a glue bucket, a glue delivery pipe, first connecting plates symmetrically arranged on the support table, a gluing roller arranged on the first connecting plates, a connecting device connecting the gluing roller and the first connecting plates, an adjusting device for adjusting the gluing width of the gluing roller, a flattening device for flattening the glue, a fixing device for fixing the leather, an adjusting device for adjusting the position of the support table, and a driving device for driving the frame to move. A glue storage cavity is arranged inside the gluing roller, and a plurality of glue application holes are arranged on the outer wall of the gluing roller. The adjusting device includes a limiting protrusion arranged on the inner wall of the glue storage cavity, adjusting plates symmetrically arranged in the glue storage cavity, an adjusting rod arranged in the glue storage cavity, a first thread arranged on the adjusting rod, and a second thread arranged on the adjusting rod.

[0004] Although the above patent can achieve automatic gluing on the leather surface, it still has the following deficiencies in practical applications:

[0005] 1. Lack of a mechanism for automatically leveling the leather: When the leather is placed on the support table, the edges are prone to warping or wrinkling, which will affect the gluing quality. In order to avoid affecting the gluing quality, it is necessary to manually level the leather, which not only takes time but also affects the gluing efficiency.

[0006] 2. Lack of a mechanism for automatically locking and unlocking the leather and automatically loading and unloading: The above patent requires manual laying of the leather, manually fixing and loosening the pressing plate, which is cumbersome and time-consuming, and after gluing, it is also necessary to manually remove the leather, making it difficult to achieve continuous gluing operations and resulting in low gluing efficiency. Summary of the Invention

[0007] The purpose of the present invention is to provide a leather roller gluing device that can not only automatically load and unload but also automatically level the leather to solve the above problems.

[0008] To achieve the above object, the present invention provides the following technical solution: A leather roller gluing device, comprising a frame. Two liftable guide rails are symmetrically arranged on the upper part of the frame. An installation frame is slidably arranged between the two guide rails. The lower part of the installation frame is connected with an arc-shaped frame with an open bottom. An electric gluing roller is installed in the arc-shaped frame. A driving member one for driving one of the guide rails to lift is installed on one side of the frame, and a driving member two for driving the installation frame to reciprocate horizontally is installed on the other guide rail. A glue supply mechanism for supplying glue to the electric gluing roller is arranged on the upper part of the installation frame. A conveyor belt for conveying leather is arranged in the lower part of the frame. A support table for supporting the leather is connected to the lower part of the frame. The support table is located inside the conveyor belt. A lifting mechanism is arranged in the frame. Two sliding plates are arranged on the lifting mechanism. Electric rollers for leveling the leather are installed at the lower parts of the two sliding plates. A bidirectional screw motor for driving the two sliding plates to approach and move away from each other is installed on the lifting mechanism.

[0009] Preferably, the lifting mechanism includes two lifting plates symmetrically arranged in the frame. Slide rails are slidably connected to the two lifting plates through lifting rods. The two sliding plates are slidably connected between the two slide rails. The bidirectional screw motor is installed on one of the slide rails. Springs are connected between the lifting rods and the lifting plates. A driving member three for driving one of the lifting plates to lift is installed on the frame.

[0010] Preferably, an adjusting mechanism for adjusting the gluing thickness is arranged on the arc-shaped frame. The adjusting mechanism includes two scraping plates one respectively slidably arranged on both sides of the arc-shaped frame. Sliding plates are connected to the mutually remote sides of the two scraping plates one. Two mounting plates are connected to the lower part of the installation frame. A bidirectional screw is rotatably connected between the two mounting plates. The bidirectional screw is threadedly connected to the two sliding plates to drive the two scraping plates one to approach and move away from each other.

[0011] Preferably, a cleaning mechanism for cleaning the conveyor belt is arranged on the side wall of the frame. The cleaning mechanism includes a connecting plate connected to the side wall of the frame. A scraping plate two is arranged on the connecting plate. The upper part of the scraping plate two is bent towards the conveyor belt and contacts the conveyor belt. A collecting frame located below the scraping plate two is connected to the side wall of the frame. A discharge pipe is connected to the bottom of the collecting frame.

[0012] Preferably, the scraping plate two is hinged to the connecting plate, and a torsion spring is connected between the scraping plate two and the connecting plate.

[0013] Preferably, a vertical plate is connected to the side of the collecting frame away from the frame at the top. A supporting plate for supporting the leather is connected to the top of the vertical plate.

[0014] Preferably, U-shaped plates are adsorbed and fixed on the mutually remote sides of the two sliding plates through adsorbing members. Scraping plates are connected to the lower parts of the mutually close sides of the two U-shaped plates. The two scraping plates are respectively in contact with the two electric rollers.

[0015] Preferably, the adsorbing member includes two magnets I embedded in the sliding plate and two magnets II embedded in the U-shaped plate.

[0016] The present invention has the following advantages compared with the prior art:

[0017] 1. The conveyor belt can send out the leather after gluing and convey the next leather to directly above the support table, realizing automatic loading and unloading of the leather; the lifting mechanism can drive the sliding plate to drive the electric roller to lift and lower. When the electric roller descends to contact the leather, the two-way lead screw motor can drive the two sliding plates to drive the two electric rollers to move away from each other to level the leather, thus smoothing the warped edges and wrinkles of the leather, realizing automatic leveling of the leather, and further improving the gluing quality and efficiency; and the two electric rollers can press and fix the leather to prevent the leather from shifting during the gluing operation, ensuring the smooth progress of the gluing operation. The leather can be released by lifting the electric roller, realizing automatic locking and unlocking of the leather; thus, the present invention can not only automatically load and unload, but also automatically level the leather, and can automatically lock and unlock the leather, and further can realize continuous gluing operation of the leather, greatly improving the gluing efficiency.

[0018] 2. The distance between the first scraping plate and the electric gluing roller can be adjusted by the two-way screw, so that the gluing thickness can be adjusted according to actual needs, flexibly meeting the requirements of different gluing thicknesses, avoiding the problems of too thick or too thin gluing, further reducing the waste of glue, lowering the production cost, and improving the gluing quality.

[0019] 3. The second scraping plate can scrape off the glue adhered to the conveyor belt to clean the conveyor belt, so as to avoid affecting the leveling and gluing of the next leather.

[0020] 4. The glue adhered to the electric roller can be scraped off by the scraping plate to clean the electric roller, so as to avoid affecting the leveling of the next leather by the electric roller. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a schematic three-dimensional structure diagram of the present invention.

[0022] Figure 2 is a partial schematic three-dimensional structure diagram of the present invention.

[0023] Figure 3 is an installation schematic diagram of the lifting mechanism of the present invention.

[0024] Figure 4 is a schematic three-dimensional structure diagram of the lifting mechanism of the present invention.

[0025] Figure 5 is an installation schematic diagram of the adjusting mechanism of the present invention.

[0026] Figure 6 This is a three-dimensional structural schematic diagram of the adjusting mechanism of the present invention.

[0027] Figure 7 This is an installation schematic diagram of the cleaning mechanism of the present invention.

[0028] Figure 8 This is a three-dimensional structural schematic diagram of the cleaning mechanism of the present invention.

[0029] Figure 9 This is a connection schematic diagram of the slide plate, U-shaped plate and scraping plate of the present invention.

[0030] Figure 10 This is an installation schematic diagram of the magnet of the present invention.

[0031] Reference numerals in the figure: 1-frame, 01-base, 02-U-shaped frame, 03-gantry, 2-guide rail, 3-mounting frame, 4-arc frame, 5-electric glue roller, 6-driving member 1, 7-driving member 2, 81-glue storage cylinder, 82-feed pump, 83-feed pipe, 84-dispersion box, 85-flat pipe, 9-conveyor belt, 91-supporting platform, 100-guide rod, 101-driving member 3, 102-lifting plate, 103-lifting rod, 104-slide rail, 105-spring, 11-slide plate, 12-electric roller, 13-bidirectional lead screw motor, 141-scraper 1, 142-mounting plate, 143-sliding plate, 144-bidirectional screw, 151-connecting plate, 152-scraper 2, 153-torsion spring, 154-collecting box, 155-discharge pipe, 16-vertical plate, 17-supporting plate, 18-U-shaped plate, 19-scraping plate, 20-magnet 1, 21-magnet 2. Detailed implementation manners

[0032] Please refer to Figures 1 - 4, a leather roller gluing device, which includes a frame 1. The frame 1 includes a base 01, a U-shaped frame 02 and a gantry 03. U-shaped frames 02 are connected to both the left and right sides of the base 01, and gantries 03 are connected to both the front and back sides of the top of the base 01. Guide grooves are opened at the upper parts of the inner walls of the front and back sides of the two U-shaped frames 02. Sliders are slidably connected in the four guide grooves. Guide rails 2 are connected between the left and right sliders. An installation frame 3 is slidably arranged between the two guide rails 2. The left lower part of the installation frame 3 is connected with an arc-shaped frame 4 with an open bottom. An electric gluing roller 5 is installed in the arc-shaped frame 4. A driving member one 6 is installed on the front side of the right U-shaped frame 02. The driving member one 6 is connected to the right front slider to drive the right front slider to drive the front guide rail 2 to rise and fall. A driving member two 7 for driving the installation frame 3 to move left and right reciprocally is installed on the rear guide rail 2. A glue supply mechanism for supplying glue to the electric gluing roller 5 is arranged at the upper right part of the installation frame 3. The glue supply mechanism includes a glue storage cylinder 81 connected to the upper right part of the installation frame 3. The glue storage cylinder 81 has a heating function to prevent the glue from solidifying. The glue storage cylinder 81 with a heating function is prior art and will not be elaborated here. A feeding pump 82 is installed at the upper right part of the installation frame 3 on the left side of the glue storage cylinder 81. The feeding pump 82 is communicated with the glue storage cylinder 81 through a feeding pipe 83. The output end of the feeding pump 82 is communicated with a dispersion box 84. The dispersion box 84 is communicated with the arc-shaped frame 4 through a flat pipe 85. A conveyor belt 9 for conveying leather is arranged between the lower parts of the two U-shaped frames 02. A support table 91 for supporting the leather is connected between the lower parts of the two U-shaped frames 02. The support table 91 is located inside the conveyor belt 9. A lifting mechanism is arranged inside the gantry 03. The lifting mechanism includes two lifting plates 102 slidably arranged inside the two gantries 03 respectively. The shape of the lifting plate 102 is T-shaped. A guide rod 100 is slidably connected to the lifting plate 102. The guide rod 100 is fixedly connected to the gantry 03 and the base 01 to guide the lifting of the lifting plate 102 and ensure the stable lifting of the lifting plate 102. The lifting plate 102 is located below the guide rail 2. U-shaped lifting rods 103 are slidably connected to both of the two lifting plates 102. Slide rails 104 are connected to the lower parts of the two lifting rods 103. Left and right springs 105 are sleeved on the U-shaped lifting rods 103. The two ends of the spring 105 are respectively connected to the lifting rod 103 and the lifting plate 102. A driving member three 101 for driving the front lifting plate 102 to rise and fall is installed on the right front side of the top of the base 01. Left and right two sliding plates 11 are slidably connected between the two slide rails 104. Electric rollers 12 for leveling the leather are installed at the lower parts of the two sliding plates 11. A bidirectional lead screw motor 13 is installed on the rear slide rail 104. The bidirectional lead screw of the bidirectional lead screw motor 13 is threadedly connected to the two sliding plates 11 to drive the two sliding plates 11 to approach and move away from each other.

[0033] In a specific implementation, the first driving member 6, the second driving member 7, and the third driving member 101 all adopt screw motors. Screw motors have the advantages of high-precision positioning, good repeatability, efficient force transmission, high-speed and stable operating characteristics, long service life, high reliability, strong load capacity, and easy control.

[0034] First, convey the leather to directly above the support table 91 to the left through the conveyor belt 9. Then, control the third driving member 101 to drive the front lifting plate 102 to move downward, thereby driving the front lifting rod 103, the slide rail 104, and the spring 105 to move downward. The downward movement of the front slide rail 104 drives the skateboard 11 to move downward. The downward movement of the skateboard 11 drives the rear slide rail 104 to move downward, thereby driving the bidirectional screw motor 13, the rear lifting rod 103, and the spring 105 to move downward. The downward movement of the skateboard 11 drives the electric roller 12 to move downward to contact the leather. Due to the support of the support table 91, after the electric roller 12 moves downward to contact the leather, the electric roller 12 cannot continue to move downward, so that the skateboard 11, the slide rail 104, and the lifting rod 103 cannot continue to move downward. Furthermore, the lifting plate 102 continues to move downward to compress the spring 105. Through the elastic force of the spring 105, it is ensured that when the subsequent two electric rollers 12 move away from each other, they always remain in close contact with the leather, ensuring that the leather can be leveled. Then, control the bidirectional screw motor 13 to drive the two skateboards 11 to drive the two electric rollers 12 to move away from each other. At the same time, control the two electric rollers 12 to rotate in opposite directions. The two electric rollers 12 moving away from each other and rotating in opposite directions can level the leather, smooth the curled edges and wrinkles of the leather, realizing automatic leveling of the leather, thereby improving the gluing quality and efficiency. And the leather can be pressed and fixed by the two electric rollers 12 to prevent the leather from shifting during the gluing operation, ensuring the smooth progress of the gluing operation.

[0035] Subsequently, control the first driving member 6 to drive the front guide rail 2 to drive the mounting bracket 3 to move downward, thereby driving the rear guide rail 2, the arc-shaped frame 4, the electric gluing roller 5, the second driving member 7, the glue storage cylinder 81, the feed pump 82, the feed pipe 83, the dispersion box 84, and the flat pipe 85 to move downward. After the electric gluing roller 5 moves downward, it contacts the leather. After the guide rail 2, the second driving member 7, the glue storage cylinder 81, the feed pump 82, the feed pipe 83, and the dispersion box 84 move downward, they are still above the lifting plate 102 and will not hinder the subsequent left and right reciprocating movement of the mounting bracket 3. Initially, the mounting bracket 3 is located on the right side. Thus, after the mounting bracket 3 drives the electric gluing roller 5 to move downward, it is located on the right side and between the two skateboards 11. Then, control the feed pump 82 to work to convey the glue in the glue storage cylinder 81 to the dispersion box 84 through the feed pipe 83. The dispersion box 84 disperses and inputs the glue into the flat pipe 85, and the flat pipe 85 disperses the glue onto the electric gluing roller 5. Subsequently, control the second driving member 7 to drive the mounting bracket 3 to drive the electric gluing roller 5 to reciprocate left and right. At the same time, control the electric gluing roller 5 to rotate. The electric gluing roller 5 reciprocating left and right and rotating can evenly roll the glue on the leather surface.

[0036] After the glue roller coating is completed, first control the driving member 6 to drive the front guide rail 2 to drive the mounting frame 3 to move upward, so as to drive the electric glue roller 5 to move upward and separate from the leather. Then control the driving member 101 to drive the front lifting plate 102 to move upward, so that the sliding plate 11 drives the electric roller 12 to move upward and release the leather. Then control the bidirectional lead screw motor 13 to drive the two sliding plates 11 to drive the two electric rollers 12 to approach each other. At the same time, control the conveyor belt 9 to rotate to send the glued leather out to the left and convey the next leather to directly above the support table 91 to the left, realizing automatic loading and unloading of the leather. In this way, this device can send out the glued leather through the conveyor belt 9 and convey the next leather to directly above the support table 91, realizing automatic loading and unloading of the leather; through the lifting mechanism, it can drive the sliding plate 11 to drive the electric roller 12 to lift and lower. The electric roller 12 descends to contact the leather. Through the bidirectional lead screw motor 13, it can drive the two sliding plates 11 to drive the two electric rollers 12 to move away from each other to level the leather, so as to smooth the warped edges and wrinkles of the leather, realizing automatic leveling of the leather, and further improving the glue coating quality and efficiency; and through the two electric rollers 12, the leather can be pressed and fixed to prevent the leather from shifting during the glue coating operation and ensure the smooth progress of the glue coating operation. The electric roller 12 moves upward to release the leather, realizing automatic locking and unlocking of the leather; thus, this device can not only automatically load and unload, but also automatically level the leather, and can automatically lock and unlock the leather, and further can realize continuous glue coating operation of the leather, greatly improving the glue coating efficiency.

[0037] Please refer to Figures 5 - 6 As shown in the figure, an adjusting mechanism for adjusting the glue coating thickness is provided on the arc-shaped frame 4. The adjusting mechanism includes a first scraper 141, a mounting plate 142, a sliding plate 143 and a bidirectional screw 144. Sliding grooves are formed on the left and right sides of the arc-shaped frame 4. The first scrapers 141 are slidably arranged in the two sliding grooves. The front and rear sides of the two first scrapers 141 are respectively connected with the front and rear two sliding plates 143. The lower parts of the front and rear sides of the mounting frame 3 are respectively connected with the left and right two mounting plates 142. The four mounting plates 142 correspond to the four sliding plates 143 one by one. The mounting plate 142 and the corresponding sliding plate 143 are slidably matched. The left and right two mounting plates 142 on the front side are rotatably connected with a bidirectional screw 144. The bidirectional screw 144 is threadedly connected with the left and right two sliding plates 143 on the front side to drive the two first scrapers 141 to approach and move away from each other.

[0038] Rotate the bidirectional screw 144 to adjust the distance between the two sliding plates 143 on the front side, thereby adjusting the distance between the two first scrapers 141, adjusting the distance between the first scraper 141 and the electric glue applicator roller 5, and further being able to adjust the glue application thickness. When the distance between the first scraper 141 and the electric glue applicator roller 5 is small, the first scraper 141 can scrape off the excess glue on the electric glue applicator roller 5 to ensure that the glue application is thin and uniform. When the distance between the first scraper 141 and the electric glue applicator roller 5 is large, the scraping force of the first scraper 141 will be correspondingly weakened, which is suitable for the case where a thicker glue application layer is required. In this way, the device can adjust the glue application thickness according to actual needs, so as to flexibly meet the requirements of different glue application thicknesses, avoid the problems of too thick or too thin glue application, further reduce the waste of glue, lower the production cost, and improve the glue application quality.

[0039] Please refer to Figures 7 - 8 , a cleaning mechanism for cleaning the conveyor belt 9 is provided at the lower left part of the left U-shaped frame 02. The cleaning mechanism includes two front and rear connecting plates 151 connected to the lower left part of the left U-shaped frame 02. A second scraper 152 is hinged between the two front and rear connecting plates 151. The upper part of the second scraper 152 bends to the right and contacts the conveyor belt 9. A torsion spring 153 is connected to the hinged part of the second scraper 152 and the connecting plate 151. A collection box 154 is connected to the lower left part of the left U-shaped frame 02 and is located below the second scraper 152. A discharge pipe 155 is connected to the bottom of the collection box 154. The inner bottom surface of the collection box 154 is designed with an inclined surface to centrally direct the glue therein to the discharge pipe 155 for discharge.

[0040] When the conveyor belt 9 rotates, the second scraper 152 can scrape off the glue adhered to the conveyor belt 9 to clean the conveyor belt 9, so as to avoid affecting the leveling and glue application of the next leather. The glue scraped off from the conveyor belt 9 falls into the collection box 154 and is discharged outward through the discharge pipe 155. Through the elastic force of the torsion spring 153, the second scraper 152 can always be kept in close contact with the conveyor belt 9. Even when the conveyor belt 9 becomes loose due to long-term work, it can ensure the effective cleaning of the glue thereon, not only avoiding the problem of incomplete cleaning caused by the looseness of the conveyor belt 9, but also ensuring that the second scraper 152 can always effectively remove the glue on the surface of the conveyor belt 9 and maintain the good conveying performance of the conveyor belt 9.

[0041] Please refer to Figure 7 , a vertical plate 16 is connected to the left side of the top of the collection box 154, and a support plate 17 is connected to the top of the vertical plate 16 and is located above the second scraper 152. The leather can be supported by the support plate 17 to prevent the leather from falling into the collection box 154 when it is sent out to the left. There is a gap between the support plate 17 and the conveyor belt 9 to prevent the glue cleaned from the conveyor belt 9 from accumulating on the support plate 17.

[0042] Please refer to Figures 9 - 10, on the sides of the two sliding plates 11 away from each other, U-shaped plates 18 are adsorbed and fixed by adsorption members. The adsorption members include two front and rear magnets one 20 embedded in the sliding plates 11 and two front and rear magnets two 21 embedded in the U-shaped plates 18. The magnet one 20 and the magnet two 21 attract each other, and the stable connection between the U-shaped plate 18 and the sliding plate 11 is ensured through the magnetic attraction cooperation of the magnet one 20 and the magnet two 21. On the lower parts of the sides of the two U-shaped plates 18 close to each other, scraping plates 19 are connected. The two scraping plates 19 are respectively in contact with the two electric rollers 12. The scraping plates 19 are inclinedly installed to guide the glue scraped from the electric rollers 12 into the U-shaped plates 18.

[0043] During the glue coating operation, glue may adhere to the electric rollers 12, and the adhesion of glue to the electric rollers 12 may affect the subsequent leveling of the next piece of leather. When a glue coating operation is completed and the sliding plate 11 drives the electric roller 12 to move upward, the electric roller 12 is controlled to rotate, so that the glue adhered to the electric roller 12 is scraped off through the scraping plate 19, realizing the cleaning of the electric roller 12 to avoid affecting the leveling of the next piece of leather by the electric roller 12. The glue scraped off is blocked in the U-shaped plate 18 by the scraping plate 19 for collection. By removing the U-shaped plate 18 from the sliding plate 11, the glue collected in the U-shaped plate 18 can be poured out to facilitate the cleaning of the glue.

Claims

1. A leather roller gluing device, comprising a frame (1). Two liftable guide rails (2) are symmetrically arranged on the upper part of the frame (1). A mounting frame (3) is slidably arranged between the two guide rails (2). The lower part of the mounting frame (3) is connected with an arc-shaped frame (4) with an open bottom. An electric gluing roller (5) is installed in the arc-shaped frame (4). One side of the frame (1) is installed with a first driving member (6) for driving one of the guide rails (2) to lift. The other guide rail (2) is installed with a second driving member (7) for driving the mounting frame (3) to reciprocate horizontally. A glue supply mechanism for supplying glue to the electric gluing roller (5) is arranged on the upper part of the mounting frame (3), characterized in that, Inside the lower part of the frame (1), there is a conveyor belt (9) for conveying leather. Inside the lower part of the frame (1), there is a support table (91) for supporting the leather. The support table (91) is located inside the conveyor belt (9). There is a lifting mechanism inside the frame (1). There are two sliding plates (11) on the lifting mechanism. Electric rollers (12) for leveling the leather are installed at the lower parts of the two sliding plates (11). A two-way lead screw motor (13) for driving the two sliding plates (11) to approach and move away from each other is installed on the lifting mechanism.

2. The leather roller gluing device according to claim 1, wherein The lifting mechanism includes two lifting plates (102) symmetrically arranged inside the frame (1). Slide rails (104) are slidably connected to the two lifting plates (102) through lifting rods (103). The two sliding plates (11) are slidably connected between the two slide rails (104). The two-way lead screw motor (13) is installed on one of the slide rails (104). A spring (105) is connected between the lifting rod (103) and the lifting plate (102). A driving member three (101) for driving one of the lifting plates (102) to lift is installed on the frame (1).

3. The leather roller gluing device according to claim 2, characterized in that, An adjusting mechanism for adjusting the glue coating thickness is provided on the arc-shaped frame (4). The adjusting mechanism includes two first scrapers (141) respectively slidably arranged on both sides of the arc-shaped frame (4). Sliding plates (143) are connected to the mutually remote sides of the two first scrapers (141). Two mounting plates (142) are connected to the lower part of the mounting frame (3). A two-way screw (144) is rotatably connected between the two mounting plates (142). The two-way screw (144) is threadedly connected to the two sliding plates (143) to drive the two first scrapers (141) to approach and move away from each other.

4. The leather roller gluing device according to claim 3, characterized in that, A cleaning mechanism for cleaning the conveyor belt (9) is provided on the side wall of the frame (1). The cleaning mechanism includes a connecting plate (151) connected to the side wall of the frame (1). A second scraper (152) is provided on the connecting plate (151). The upper part of the second scraper (152) bends towards the conveyor belt (9) and contacts the conveyor belt (9). A collection box (154) located below the second scraper (152) is connected to the side wall of the frame (1). A discharge pipe (155) is connected to the bottom of the collection box (154).

5. A leather roller gluing device according to claim 4, characterized in that, The second scraper (152) is hinged to the connecting plate (151). A torsion spring (153) is connected between the second scraper (152) and the connecting plate (151).

6. The leather roller gluing device according to claim 5, wherein, A vertical plate (16) is connected to the side of the top of the collection box (154) far from the frame (1). A support plate (17) for supporting the leather is connected to the top of the vertical plate (16).

7. A leather roller gluing device according to claim 6, characterized in that, U-shaped plates (18) are adsorbed and fixed on the mutually remote sides of the two sliding plates (11) through adsorbing members. Scraping plates (19) are connected to the lower parts of the mutually close sides of the two U-shaped plates (18). The two scraping plates (19) respectively contact the two electric rollers (12).

8. The leather roller gluing device according to claim 7, wherein, The adsorbing members include two first magnets (20) embedded in the sliding plates (11) and two second magnets (21) embedded in the U-shaped plates (18).

Images