Artificial leather processing and drying device

Abstract

The utility model discloses an artificial leather processing and drying device which comprises a box body and a driving roller for driving artificial leather to rotate, a drying sleeve is fixedly arranged on the peripheral wall of the driving roller, a plurality of air guide grooves distributed in the peripheral direction of the drying sleeve are formed in the peripheral wall of the drying sleeve, and the air guide grooves penetrate through the end wall of the drying sleeve. Gas conveying parts are mounted at the two ends of the drying sleeve, the drying device further comprises a hot gas circulating mechanism for circulating gas in the two gas conveying parts, each gas conveying part comprises a gas supply mechanism for supplying gas to the drying sleeve, and the artificial leather blocks the side face of the gas guide groove so that hot gas can conveniently penetrate through the gas guide groove; and hot air is conveyed into the air guide groove through the air supply mechanism, water vapor on the artificial leather can be output outwards along the air guide groove while the hot air heats the artificial leather, the staying time of the water vapor on the artificial leather is shortened, and the drying effect of the artificial leather is improved.

Description

Technical Field

[0001] This utility model relates to the field of artificial leather drying technology, and in particular, to an artificial leather processing and drying device. Background Technology

[0002] Drying is a crucial step in the manufacturing process of artificial leather.

[0003] Under normal circumstances, artificial leather is dried by using hot air to dry the surface and back of the leather to achieve a preset degree of dryness. The commonly used artificial leather drying equipment is a hot air circulating dryer, which mainly consists of components such as a hot air blower, a circulating fan, a heater, and a temperature controller.

[0004] High-temperature hot air generated by a hot air blower is transported to the heater through an air duct, raising the air temperature and blowing it vertically onto the surface of the artificial leather. The hot air is then returned to the inlet of the hot air blower by a circulating fan, creating a hot air circulation system. Because artificial leather has poor breathability, evaporated moisture remains on the surface, affecting the drying effect.

[0005] Therefore, how to design a drying device to improve the drying effect of artificial leather has become a technical problem that urgently needs to be solved by people in this field. Utility Model Content

[0006] In order to solve at least one of the technical problems mentioned in the background art, the purpose of this utility model is to provide a drying device for artificial leather processing, which accelerates the emission of water vapor, improves the drying effect of artificial leather, and reduces energy consumption.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A drying device for processing artificial leather includes a housing and a drive roller for rotating the artificial leather. A drying sleeve is fixedly provided on the peripheral wall of the drive roller. The peripheral wall of the drying sleeve is provided with a plurality of air guide grooves distributed along the circumference of the drying sleeve. The air guide grooves penetrate the end wall of the drying sleeve. Gas conveying components are installed at both ends of the drying sleeve. The device also includes a hot air circulation mechanism for circulating the gas in the two gas conveying components. The gas conveying components include an air supply mechanism for supplying gas to the drying sleeve. The air supply mechanism is fixedly installed on the housing and is rotatably connected to the drying sleeve.

[0009] Furthermore, the drying sleeve is provided with an ironing chamber, and the end wall of the drying sleeve is provided with a first air pipe communicating with the ironing chamber. The air supply mechanism includes a housing, and an air chamber is provided inside the housing. A rotating plate is provided inside the air chamber and rotatably connected to the inner wall of the housing. A second air pipe communicating with the air chamber is provided on the rotating plate. The second air pipe is inserted into the first air pipe. The hot air circulation mechanism is connected to the air chamber.

[0010] Furthermore, the housing is provided with an air inlet that communicates with the air chamber, and the air inlet is aligned with the air guide groove that is sealed by artificial leather.

[0011] Furthermore, a positioning retaining ring is fixedly provided on the inner wall of the housing, and the rotating plate is rotatably connected to the positioning retaining ring. The positioning retaining ring is provided with an arc-shaped sliding groove, and also includes two adjusting blocks and a second bolt. One end wall of the adjusting block is clearance-fitted with the end wall of the drying sleeve, and the other end wall of the adjusting block abuts against the positioning retaining ring. The second bolt passes through the sliding groove and is threadedly connected to the adjusting block.

[0012] Furthermore, it also includes a sealing plate for sealing the chute, the second bolt passing through the sealing plate and threadedly connected to the adjusting block, the sealing plate being clamped between the nut of the second bolt and the positioning retaining ring.

[0013] Furthermore, the positioning retaining ring is fixed with a number of circumferentially distributed guide posts, and the guide posts abut against the side wall of the sealing plate near the axis of the rotating plate.

[0014] Furthermore, the first housing is provided with an end cap for sealing the air chamber, and the end cap is provided with an air inlet connected to the hot air circulation mechanism.

[0015] Furthermore, the hot gas circulation mechanism includes an air pump, a first gas delivery pipe, and a second gas delivery pipe. One end of the first gas delivery pipe is connected to the air pump, and the other end of the first gas delivery pipe is connected to the air inlet on one of the gas delivery components. The second gas delivery pipe is connected to the air pump, and the other end of the second gas delivery pipe is connected to the air inlet of another gas delivery component.

[0016] Furthermore, the gas conveying component includes a compensation device for sealing the gas guide groove. The compensation device has two sets and is respectively installed at both ends of the drying sleeve. The compensation device includes a first compensation cylinder, a second compensation cylinder, and a first bolt. The first compensation cylinder is fixedly installed on the peripheral wall of the drying sleeve. The second compensation cylinder is sleeved on the outside of the first compensation cylinder and slidably connected to the first compensation cylinder. The first bolt is threadedly connected to the second compensation cylinder, and the end of the first bolt abuts against the peripheral wall of the first compensation cylinder.

[0017] Furthermore, the first compensation cylinder is provided with a first retaining ring, and the housing is provided with a second retaining ring, with the first retaining ring and the second retaining ring being rotatably connected.

[0018] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model utilizes the drying sleeve to abut against the artificial leather, and drives the artificial leather to move through the drive roller. At the same time, the artificial leather blocks the side of the air guide groove, facilitating the passage of hot air through the air guide groove. The air delivery mechanism transports the hot air into the air guide groove. While heating the artificial leather, the hot air can also output the moisture on the artificial leather outward along the air guide groove, reducing the residence time of moisture on the artificial leather and improving the drying effect of the artificial leather. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the internal structure of the present invention;

[0021] Figure 3 This is a partial unfolded schematic diagram of the present invention;

[0022] Figure 4 This is a magnified view of a portion of the drying sleeve;

[0023] Figure 5 This is a cross-sectional view of the drying sleeve;

[0024] Figure 6 This is a schematic diagram of the compensation device in operation;

[0025] Figure 7 This is a schematic diagram of the air delivery mechanism;

[0026] Figure 8 This is a first-angle sectional view of the air delivery mechanism;

[0027] Figure 9 This is a schematic diagram of the air delivery mechanism.

[0028] Figure 10 This is a schematic diagram of the internal structure of the gas delivery mechanism;

[0029] Figure 11 Front view of the gas delivery mechanism;

[0030] Figure 12 Second angle sectional view of the gas delivery mechanism.

[0031] In the diagram: 1. Housing; 2. Gas conveying component; 20. Drive roller; 200. Guide roller; 21. Drying sleeve; 211. Ironing chamber; 212. Air guide groove; 213. First air pipe; 22. Compensation device; 221. First compensation cylinder; 2211. First retaining ring; 2212. Insertion flange; 222. Second compensation cylinder; 223. First bolt; 23. Air supply mechanism; 231. Housing; 2311. Second retaining ring. 23111, Insertion ring groove; 232, End cap; 2321, Air inlet; 233, Rotating plate; 2331, Second air pipe; 234, Air chamber; 235, Air outlet; 236, Positioning retaining ring; 2361, Sliding groove; 2362, Guide post; 237, Adjusting block; 238, Sealing plate; 239, Second bolt; 3, Hot air circulation mechanism; 31, Air pump; 32, First air supply pipe; 33, Second air supply pipe. Detailed Implementation

[0032] The technical solutions in the embodiments of this utility model are described clearly and completely below. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0033] This embodiment provides a drying device for artificial leather processing, which is mainly used to accelerate the removal of moisture from the surface of artificial leather, improve the drying effect of artificial leather, and reduce energy consumption.

[0034] like Figure 1 and Figure 3 As shown, it includes a housing 1, artificial leather penetrating the housing 1, and a drive roller 20 for driving the artificial leather to move.

[0035] In this embodiment, for drying the artificial leather, as follows: Figure 2 and Figure 3 As shown, a drying sleeve 21 is fixedly provided on the peripheral wall of the drive roller 20. Gas conveying components 2 are respectively installed at both ends of the drying sleeve 21. It also includes a hot air circulation mechanism 3 for circulating the gas in the gas conveying components 2 at both ends. The artificial leather abuts against the peripheral wall of the drying sleeve 21 and is conveyed by the drying sleeve 21.

[0036] It is worth noting that the gas conveying component 2 at one end of the drying sleeve 21 supplies gas to the drying sleeve 21, while the gas conveying component 2 at the other end is used to receive the hot gas that has been used to dry the artificial leather. Then, the hot gas is circulated inside the drying sleeve 21 by the hot gas circulation mechanism 3. At this time, the drying sleeve 21 is in a high temperature state, and the artificial leather is heated by the drying sleeve 21, thereby achieving the purpose of drying the artificial leather.

[0037] In the drying process of artificial leather, in order to facilitate the removal of moisture from the artificial leather, in this embodiment, as follows: Figure 3 , Figure 4 and Figure 5 As shown, the circumferential wall of the drying sleeve 21 is provided with a plurality of outwardly opening air guide grooves 212, wherein the plurality of air guide grooves 212 are evenly distributed along the circumference of the drying sleeve 21, the air guide grooves 212 are arranged along the axial direction of the drying sleeve 21 and penetrate the end walls of both ends of the drying sleeve 21, wherein one gas conveying component 2 supplies hot gas into the air guide groove 212, and another gas conveying component 2 is used to recover the processed hot gas.

[0038] Since the artificial leather abuts against the peripheral wall of the drying sleeve 21, the artificial leather blocks the air guide groove 212 of the peripheral wall of the drying sleeve 21. When the hot air passes through the air guide groove 212, it will come into contact with the artificial leather, heating the artificial leather while carrying away the moisture on the artificial leather to prevent moisture from accumulating on the artificial leather.

[0039] To further improve the drying effect of artificial leather, in this embodiment, such as Figure 3 , Figure 4 and Figure 5 As shown, the inner cavity of the drying sleeve 21 is provided with an ironing chamber 211, and the end wall of the drying sleeve 21 is also provided with a first air pipe 213 communicating with the ironing chamber 211. The first air pipe 213 is connected to the gas conveying component 2, so that hot air can be circulated in the ironing chamber 211, thereby continuously heating the drying sleeve 21 and keeping the drying sleeve 21 at a high temperature, which is convenient for the evaporation of water vapor from the artificial leather.

[0040] Because the longitudinal section of the drying sleeve 21 is circular, and the artificial leather wraps around the peripheral wall of the drying sleeve 21, the contact area between the artificial leather and the peripheral wall of the drying sleeve 21 is relatively small under normal circumstances. This results in a smaller number of air guide grooves 212 being sealed, leading to poor drying effect of the artificial leather. Therefore, in this embodiment, as... Figure 2 and Figure 5 As shown, each of the drying sleeves 21 is provided with guide rollers 200 on both sides. The guide rollers 200 are arranged parallel to the drying sleeves 21. When the artificial leather is installed, it passes around the guide rollers 200, the drying sleeves 21 and the guide rollers 200 on the other side in sequence, so that the longitudinal section of the artificial leather is Ω, thereby increasing the contact area between the artificial leather and the drying sleeves 21 and improving the drying effect on the artificial leather.

[0041] Because the air guide groove 212 penetrates through the drying sleeve 21 and communicates with the end wall of the drying sleeve 21, and different models of artificial leather are used for drying, when the width of the artificial leather is narrow, the air guide groove 212 near the end of the drying sleeve 21 cannot be sealed, which will lead to the leakage of hot air and make it difficult for one of the gas conveying components 2 to recover and reuse the hot air. Therefore, in this embodiment, if... Figure 3 and Figure 6 As shown, the gas conveying component 2 includes a compensation device 22 for sealing the air guide groove 212, suitable for drying artificial leather of different widths; specifically, the compensation device 22 is installed at the end of the drying sleeve 21. The compensation device 22 includes a first compensation cylinder 221, a second compensation cylinder 222, and a first bolt 223. The first compensation cylinder 221 is sleeved on the end of the drying sleeve 21 and fixedly connected to the drying sleeve 21. The second compensation cylinder 222 is sleeved on the outside of the first compensation cylinder 221, and the second compensation cylinder 222 is sleeved on the outside of the first compensation cylinder 221. A first compensation cylinder 221 and a second compensation cylinder 222 are slidably connected along the axial direction of the drying sleeve 21. A first bolt 223 is installed on the peripheral wall of the second compensation cylinder 222. As the first bolt 223 rotates, the bolt moves radially along the second compensation cylinder 222. In order to accommodate the width of the artificial leather, after the second compensation cylinder 222 is adjusted to a suitable position, the first bolt 223 is rotated so that the end wall of the first bolt 223 abuts against the end wall of the first compensation cylinder 221, thereby fixing the second compensation cylinder 222 onto the first compensation cylinder 221.

[0042] It is worth noting that four first bolts 223 are provided and are evenly distributed along the circumference of the second compensation cylinder 222, which improves the stability of the installation of the second compensation cylinder 222.

[0043] During the drying process of artificial leather, the rotation of the drive roller 20 and the drying sleeve 21 causes the artificial leather to be conveyed forward. In order to stably deliver hot air to the ironing chamber 211, in this embodiment, as follows: Figure 4 , Figure 7 and Figure 8 As shown, the gas conveying component 2 includes a gas supply mechanism 23 for supplying gas to the drying sleeve 21. The gas supply mechanism 23 includes a housing 231, and a gas chamber 234 is provided inside the housing 231. One side wall of the gas chamber 234 is formed by a rotating plate 233 rotatably connected to the housing 231. A second gas pipe 2331 communicating with the gas chamber 234 is provided on the rotating plate 233. The hot gas circulation mechanism 3 is connected to the gas chamber 234. The housing 231 is fixedly connected to the box body 1. The second gas pipe 2331 is inserted into the first gas pipe 213.

[0044] With the above configuration, the gas in the air chamber 234 of one gas conveying component 2 is transferred to the air chamber 234 of the other gas conveying component 2 by the hot air circulation mechanism 3. At this time, the gas in the air chamber 234 is transported to the ironing chamber 211 through the second air pipe 2331 and the first air pipe 213. Since the drying sleeve 21 is in a rotating state, the second air pipe 2331 is inserted into the first air pipe 213. As the drying sleeve 21 rotates, the first air pipe 213 and the second air pipe 2331 can drive the rotating plate 233 to rotate synchronously, so that the gas in the air chamber 234 can be stably transported into the ironing chamber 211.

[0045] In order to deliver hot air to the air guide sump 212, in this embodiment, as follows: Figure 10 , Figure 11 and Figure 12 As shown, the housing 231 has an air inlet 235 that communicates with the air chamber 234. The air inlet 235 is aligned with the port of the air guide groove 212, which can deliver hot air from the air chamber 234 into the air guide groove 212. It is worth noting that since the contact area between the artificial leather and the drying sleeve 21 is limited when the artificial leather passes over the drying sleeve 21, it is not possible to seal all the air guide grooves 212. Therefore, the slots where the air inlet 235 is aligned with the air guide groove 212 mentioned above refer to the slots of the air guide groove 212 that are sealed by the artificial leather. The air guide grooves 212 that are not sealed by the artificial leather do not receive hot air, so as to save energy.

[0046] When the position of the guide roller 200 changes, the contact area between the artificial leather and the drying sleeve 21 also changes, and the number of sealed air channels 212 also changes. In order to accurately deliver hot air into the sealed air channels 212, the size of the air outlet 235 should be adjusted accordingly.

[0047] Therefore, in this embodiment, as Figure 8 , Figure 9 and Figure 10 As shown, a positioning retaining ring 236 is fixedly provided in the inner cavity of the housing 1. The rotating plate 233 is rotatably connected to the positioning retaining ring 236. The positioning retaining ring 236 is provided with an arc-shaped sliding groove 2361. It also includes two adjusting blocks 237. One end wall of the adjusting block 237 is in clearance fit with the end wall of the drying sleeve 21, and the other end wall of the adjusting block 237 is in clearance fit with the positioning retaining ring 236. It also includes a second bolt 239 that passes through the sliding groove 2361 and is threadedly connected to the adjusting block 237.

[0048] With the above settings, when the size of the air outlet 235 needs to be adjusted, rotate the second bolt 239 to release the fixing of the adjusting block 237, and then adjust the position of the adjusting block 237 along the slide groove 2361. After the size of the air outlet 235 is adjusted, rotate the second bolt 239 so that the nut of the second bolt 239 abuts against the positioning retaining ring 236, thereby fixing the adjusting block 237 and completing the adjustment of the air outlet 235.

[0049] Because the slide groove 2361 is relatively large, the gas in the gas chamber 234 can easily leak outward through the slide groove 2361. Therefore, in this embodiment, if... Figure 9 , Figure 10 and Figure 11 As shown, it also includes a sealing plate 238 for sealing the slide groove 2361. The sealing plate 238 is installed in the air chamber 234. The second bolt 239 passes through the sealing plate 238, so that the sealing plate 238 is clamped between the nut of the second bolt 239 and the positioning retaining ring 236. When the second bolt 239 is tightened, the slide groove 2361 can be sealed to prevent gas leakage in the air chamber 234.

[0050] Since the chute 2361 is arc-shaped, and the shape of the sealing plate 238 is consistent with the shape of the chute 2361, in order to ensure the stable movement of the sealing plate 238, in this embodiment, as follows: Figure 10 and Figure 11 As shown, a plurality of circumferentially distributed guide posts 2362 are fixedly provided on the positioning retaining ring 236, wherein the guide posts 2362 abut against one side of the inner wall of the sealing plate 238 to support the sealing plate 238.

[0051] It is worth noting that the inner side of the sealing plate 238 refers to the side closest to the axis of the rotating plate 233.

[0052] To facilitate adjustment of the air outlet 235, in this embodiment, the housing 231 is provided with an end cap 232, which is used to seal the air chamber 234. The end cap 232 is connected to the housing 231 by bolts. When it is necessary to adjust the air outlet 235, the end cap 232 can be removed from the housing 231, and then the size of the air outlet 235 can be adjusted by adjusting the second bolt 239 and the adjusting block 237.

[0053] In order to achieve gas circulation, in this embodiment, as follows: Figure 3 and Figure 9As shown, the hot air circulation mechanism 3 includes an air pump 31, a first air supply pipe 32, a second air supply pipe 33, and an air inlet 2321. The air inlet 2321 is installed on the end cover 232 and communicates with the air chamber 234. One end of the first air supply pipe 32 is connected to the air outlet of the air pump 31, and the other end of the first air supply pipe 32 is connected to the air inlet 2321 on one of the gas delivery components 2. One end of the second air supply pipe 33 is connected to the air inlet of the air pump 31, and the other end of the second air supply pipe 33 is connected to the air intake on another gas delivery component 2.

[0054] To improve the stability of the gas delivery component 2, in this embodiment, such as Figure 6 , Figure 7 and Figure 8 As shown, the first compensation cylinder 221 is provided with a first retaining ring 2211, and the first retaining ring 2211 is provided with an insertion flange 2212. The housing 231 is provided with a second retaining ring 2311, and the second retaining ring 2311 is provided with an insertion ring groove 23111. During installation, the insertion flange 2212 is inserted into the insertion ring groove 23111, and the peripheral wall of the insertion flange 2212 is slidably connected to the inner wall of the insertion ring groove 23111.

[0055] It is worth noting that the hot air circulation mechanism 3 may also be equipped with a dehumidification mechanism. The dehumidification mechanism is installed on the second air supply pipe 33 to clean the water vapor in the hot air and prevent the water vapor from flowing back onto the artificial leather. The dehumidification mechanism here is a conventional structure and can be replaced by sponge or quicklime, which are well known to those skilled in the art. The dehumidification mechanism will not be described in detail here.

[0056] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention.

Claims

1. A drying apparatus for processing artificial leather, comprising a housing (1) and a drive roller (20) for driving the artificial leather to rotate, characterized in that: A drying sleeve (21) is fixedly provided on the peripheral wall of the drive roller (20). The peripheral wall of the drying sleeve (21) is provided with a plurality of air guide grooves (212) distributed along the circumference of the drying sleeve (21). The air guide grooves (212) penetrate the end wall of the drying sleeve (21). Gas conveying components (2) are installed at both ends of the drying sleeve (21). A hot air circulation mechanism (3) is also included to circulate the gas in the two gas conveying components (2). The gas conveying component (2) includes an air supply mechanism (23) for supplying gas to the drying sleeve (21). The air supply mechanism (23) is fixedly installed on the housing (1) and is rotatably connected to the drying sleeve (21).

2. The artificial leather processing and drying device according to claim 1, characterized in that: The drying sleeve (21) is provided with an ironing chamber (211). The end wall of the drying sleeve (21) is provided with a first air pipe (213) that communicates with the ironing chamber (211). The air supply mechanism (23) includes a housing (231). The housing (231) is provided with an air chamber (234). The air chamber (234) is provided with a rotating plate (233) that is rotatably connected to the inner wall of the housing (231). The rotating plate (233) is provided with a second air pipe (2331) that communicates with the air chamber (234). The second air pipe (2331) is inserted into the first air pipe (213). The hot air circulation mechanism (3) is connected to the air chamber (234).

3. The artificial leather processing and drying device according to claim 2, characterized in that: The housing (231) is provided with an air inlet (235) that communicates with the air chamber (234), and the air inlet (235) is aligned with the air guide groove (212) which is sealed by artificial leather.

4. The artificial leather processing and drying device according to claim 3, characterized in that: The inner wall of the housing (231) is fixedly provided with a positioning retaining ring (236), the rotating plate (233) is rotatably connected to the positioning retaining ring (236), the positioning retaining ring (236) is provided with an arc-shaped sliding groove (2361), and also includes two adjusting blocks (237) and a second bolt (239). One end wall of the adjusting block (237) is clearance-fitted with the end wall of the drying sleeve (21), the other end wall of the adjusting block (237) abuts against the positioning retaining ring (236), and the second bolt (239) passes through the sliding groove (2361) and is threadedly connected to the adjusting block (237).

5. The artificial leather processing and drying apparatus according to claim 4, characterized in that: It also includes a sealing plate (238) for sealing the chute (2361), the second bolt (239) passing through the sealing plate (238) and threadedly connected to the adjusting block (237), the sealing plate (238) being clamped between the nut of the second bolt (239) and the positioning retaining ring (236).

6. The artificial leather processing and drying apparatus according to claim 5, characterized in that: The positioning retaining ring (236) is fixed with a number of circumferentially distributed guide posts (2362), and the guide posts (2362) abut against the side wall of the sealing plate (238) near the axis of the rotating plate (233).

7. A synthetic leather processing and drying apparatus according to claim 2 or 5, characterized in that: The first housing (231) is provided with an end cap (232) for sealing the air chamber (234), and the end cap (232) is provided with an air inlet (2321) connected to the hot air circulation mechanism (3).

8. The artificial leather processing and drying apparatus according to claim 6, characterized in that: The hot air circulation mechanism (3) includes an air pump (31), a first air supply pipe (32) and a second air supply pipe (33). One end of the first air supply pipe (32) is connected to the air pump (31), and the other end of the first air supply pipe (32) is connected to the air inlet (2321) on one of the gas delivery components (2). The second air supply pipe (33) is connected to the air pump (31), and the other end of the second air supply pipe (33) is connected to the air inlet (2321) of another gas delivery component (2).

9. The artificial leather processing and drying device according to claim 2, characterized in that: The gas conveying component (2) includes a compensation device (22) for sealing the gas guide groove (212). The compensation device (22) has two sets and is installed at both ends of the drying sleeve (21). The compensation device (22) includes a first compensation cylinder (221), a second compensation cylinder (222), and a first bolt (223). The first compensation cylinder (221) is fixedly installed on the peripheral wall of the drying sleeve (21). The second compensation cylinder (222) is sleeved on the outside of the first compensation cylinder (221) and is slidably connected to the first compensation cylinder (221). The first bolt (223) is threadedly connected to the second compensation cylinder (222), and the end of the first bolt (223) abuts against the peripheral wall of the first compensation cylinder (221).

10. The artificial leather processing and drying apparatus according to claim 9, characterized in that: The first compensation cylinder (221) is provided with a first retaining ring (2211), and the housing (231) is provided with a second retaining ring (2311). The first retaining ring (2211) and the second retaining ring (2311) are rotatably connected.

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