A coating apparatus for artificial leather production

Abstract

The application provides a coating device for artificial leather production, and relates to a coating device, which comprises an arc-shaped processing tank, a track shaft arranged coaxially, and a rack unit group movable along the track shaft, the rack unit group is integrated with a pay-off roller, a winding roller, a rotary motor and an arc segment cover plate, during operation, the rack unit group moves to above the processing tank, the winding roller drags an end of the artificial leather along the arc-shaped tank under the drive of the rotary motor to complete dipping and drying, and the head and tail ends are ensured to be processed, drive motors capable of automatic docking are arranged at both ends of the device, the pay-off and winding are driven during main coating, after coating is completed, the empty pay-off roller can pass through the processing tank again with the leather tail to complete tail end processing, through integrated automatic circulation design, the application realizes full-process automation from pay-off, coating, drying to winding, especially ensures uniform coating of the artificial leather in the full length range, and realizes automatic roll changing, and the production efficiency and product quality stability are significantly improved.

Description

Technical Field

[0001] This invention relates to a coating apparatus, and more particularly to a coating apparatus for the production of artificial leather. Background Technology

[0002] Artificial leather is a plastic product that resembles leather in appearance and feel and can be used as a substitute. It is typically made by coating a fabric base with synthetic resins and various plastic additives. In the production of artificial leather, the coating process is one of the key steps affecting product quality, directly impacting the color, feel, and durability of the leather. In existing coating processes, unwinding rollers are typically used for unwinding, and rewinding rollers are used for rewinding after coating. However, it is difficult to achieve complete automated coating at the beginning and end of the unwinding and rewinding stages, often requiring manual touch-ups at these points. Furthermore, after coating a roll, manual disassembly and rewinding are necessary, which is time-consuming and labor-intensive, resulting in low overall processing efficiency. Summary of the Invention

[0003] The purpose of this invention is to provide a coating device for the production of artificial leather, so as to solve the technical problems of incomplete coating at both ends, the need for manual touch-up spraying, cumbersome roll changing operations, low degree of automation, and low production efficiency in the existing artificial leather coating production process.

[0004] This invention provides the following technical solution: A coating apparatus for the production of artificial leather, comprising: A set of processing tanks extending in an arc and having an opening on the top side, the processing tanks including a coating liquid section at the bottom end and a drying section at the top end, the drying section having movable baffles at both ends; A guide shaft is coaxially distributed with the center of the arc segment of the processing groove, and a guide groove is formed on the axial direction of the guide shaft; At least one set of frame unit groups movable along the rail axis, the frame unit group including a connecting sleeve guided and connected to the outside of the rail axis, a frame sleeve located at both ends of the connecting sleeve, a rotary motor mounted on the frame sleeve, and an unwinding roller and a winding roller that are connected to the outside of the frame sleeve and parallel to the frame sleeve through a first rotating ring and a second rotating ring respectively; the rotary motor drives the first rotating ring or the second rotating ring to rotate through gear transmission. When the frame unit moves above the processing tank, the take-up roller, driven by the rotary motor, drives the artificial leather end drawn from the unwind roller to rotate around the center of the rail axis, and passes through the coating liquid section and the drying section in sequence.

[0005] The key technical advantage lies in establishing the core automated processing architecture of this invention. By designing the processing tank as an arc shape and incorporating a frame unit group that can move along a coaxial rail and has its own rotation drive (rotary motor), the take-up roller can actively pull the artificial leather end along the arc path to pass completely through the coating and drying sections. This fundamentally solves the technical problem in the prior art where the beginning and end of the artificial leather cannot pass through the processing tank due to being in an unwinding / rewinding state, resulting in incomplete coating. This lays the foundation for achieving fully automated coating at both ends.

[0006] Preferably, the frame unit group further includes an arc-shaped cover plate connected to the connecting sleeve via a frame rod, wherein the center of the arc segment of the arc-shaped cover plate is coaxially arranged with the rail shaft; when the frame unit group is located above the processing tank, the arc-shaped cover plate can cooperate with the barrier plate to enclose and form the sealing cavity of the drying section.

[0007] The technical advantage lies in the ability to create a relatively enclosed chamber during the drying stage by adding an arc-shaped cover plate in conjunction with a barrier plate. This effectively reduces heat loss, improves drying efficiency, and allows for better control of the temperature and airflow environment within the drying section, thereby ensuring uniform and stable drying quality of the artificial leather.

[0008] Preferably, the arc-shaped cover plate is provided with a first pressure cylinder and a second pressure cylinder. The drive end of the first pressure cylinder is connected to a first mounting bracket for installing a first redirecting roller, and the drive end of the second pressure cylinder is connected to a second mounting bracket for installing a second redirecting roller. The first redirecting roller is used to press down on the artificial leather to immerse it in the coating liquid when the winding roller passes through the coating liquid section, and the second redirecting roller is used to press down on the artificial leather to bring it closer to the bottom of the tank when the winding roller passes through the drying section.

[0009] The technical effect is that the cooperation between the first pressure cylinder and the first deflector roller ensures that the artificial leather can be actively pressed below the liquid surface when passing through the coating liquid section, ensuring sufficient and uniform impregnation of the coating liquid. The cooperation between the second pressure cylinder and the second deflector roller brings the artificial leather closer to the heat source (bottom of the drying section) during the drying stage, further optimizing heat transfer efficiency and accelerating the drying process.

[0010] Preferably, one end of the barrier plate is connected to a top cylinder driven by a cylinder installed at the bottom of the processing tank, and the other end is equipped with a top roller; a pressure roller corresponding to the position of the top roller is also mounted on the arc-shaped cover plate; when the barrier plate is driven by the top cylinder to move toward the arc-shaped cover plate, the top roller and the pressure roller cooperate to press the artificial leather.

[0011] The technology utilizes a top cylinder to drive the movement of the baffle plate, and through the coordinated action of the top roller and the pressure roller on the arc-shaped cover plate, it can apply a stable clamping force to the artificial leather at the entrance and exit of the drying section. This not only effectively seals the drying chamber but also prevents the artificial leather from wrinkling or shifting due to heat or tension changes during the drying process, ensuring product flatness.

[0012] Preferably, it also includes a drive motor mounted on a frame located at both ends of the processing tank, and the drive end of the drive motor is provided with a rectangular adapter sleeve; the drive motor is mounted on a turntable, and the turntable is mounted on the drive end of the docking cylinder; when the unwinding roller or the winding roller rotates to be aligned with the drive motor, the docking cylinder can drive the rectangular adapter sleeve to dock and drive the unwinding roller or the winding roller to rotate.

[0013] Preferably, the ends of the unwinding roller and the winding roller are provided with rectangular blocks, which are used to cooperate with the rectangular adapter sleeve of the drive motor.

[0014] Its technical advantages include the establishment of independent drive units (drive motor, turntable, docking cylinder), and the design of an automatically docking rectangular adapter sleeve and rectangular block structure. This solution enables automatic and precise switching of the drive power from a "rotary motor" to a "fixed drive motor (for continuous unwinding / rewinding)" after the frame unit assembly is in place. This is key to achieving a continuous and automated main coating process and subsequent automatic roll changing, completely replacing the manual disassembly and installation of the rolls.

[0015] Preferably, both the unwinding roller and the winding roller include two sets of opposing semi-shaft units, which are used to clamp the ends of the artificial leather when the two sets of semi-shaft units are joined together; the ends of the two sets of semi-shaft units are provided with rectangular half-blocks, which are joined together to form the rectangular block.

[0016] The technical advantage lies in designing the unwind and rewind rollers as two openable semi-shaft units, driven by a lead screw to clamp or release them. This structure makes the installation, clamping (especially the fixing of the beginning and end), and unwinding of artificial leather rolls extremely convenient and reliable. Simultaneously, the rectangular block structure formed at the ends of the semi-shaft units cleverly combines the "clamping function" with the "power transmission function."

[0017] Preferably, one end of the rail shaft is provided with a push rod for pushing the frame unit group forward axially, and the other end is provided with a retractable stop bar for blocking and limiting the frame unit group when it moves above the processing tank.

[0018] Its technical advantage lies in the use of a top rod and a retractable stop rod to achieve sequential, automatic, and precise positioning of multiple frame units on the track axis. This constitutes the basic control system for the entire equipment's assembly line-style, batch-based, continuous operation, ensuring the automation and continuity of the production cycle.

[0019] Preferably, the coating liquid section contains a coating liquid, and the drying section is equipped with a dryer.

[0020] The beneficial effects of this invention are as follows: By setting up a frame unit group that can move along the track axis, this invention integrates unwinding rollers, rewinding rollers, arc-shaped cover plates, pressure cylinders, and redirecting rollers, and works in conjunction with the arc-shaped processing tank to achieve fully automated continuous processing of artificial leather from unwinding, immersion in coating liquid, drying to rewinding. In particular, by designing the rewinding roller to drive the first end of the artificial leather to move along the arc-shaped path of the processing tank, and the tail end of the unwinding roller to follow the artificial leather to complete the same path, it ensures that both ends of the artificial leather can undergo complete coating and drying processes without the need for manual touch-up spraying. At the same time, through the automatic docking drive design of the drive motor, turntable, and docking cylinder, as well as the propulsion and positioning mechanism of the top rod and stop rod, automatic cyclic rewinding of multiple sets of frame unit groups is realized. Operators only need to pre-load the frame unit groups with raw materials onto the track axis, and the equipment can automatically complete the entire processing and rewinding process, significantly improving production efficiency and reducing labor intensity. Attached Figure Description

[0021] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the structure of the frame unit group when it moves along the rail axis to the top of the processing tank; Figure 2 Based on Figure 1 A schematic diagram of the structure during winding after the take-up rollers are connected; Figure 3 This is a schematic diagram of the winding and unwinding rollers of the frame unit group; Figure 4 This is a top view schematic diagram of the arc-shaped cover plate and the treatment groove in the frame unit group; Figure 5 This is a schematic diagram of the structure when the take-up roll and unwind roll are connected to the drive motor; Figure 6 This is a schematic diagram of the structure when two sets of semi-shaft units are connected; Markings in the diagram: 10. Processing tank; 11. Coating liquid section; 12. Drying section; 13. Baffle plate; 14. Top cylinder; 20. Rail shaft; 21. Top rod; 22. Stop rod; 30. Frame unit group; 31. Connecting sleeve; 32. Frame sleeve; 33. First rotating ring; 34. Second rotating ring; 35. Rotary motor; 36. External gear; 37. First frame rod; 38. Unwinding adapter sleeve; 39. Second frame rod; 40. 41. Rewinding adapter sleeve; 51. Unwinding roller; 60. Rewinding roller; 61. Arc-shaped cover plate; 62. First pressure cylinder; 63. First redirecting roller; 64. Second pressure cylinder; 65. Pressure roller; 70. Drive motor; 71. Rectangular adapter sleeve; 72. Turntable; 73. Docking cylinder; 80. Rectangular block; 81. Rectangular half block; 82. Half-shaft unit; 83. Lead screw; 131. Top roller. Detailed Implementation

[0022] Example 1 like Figure 1-6 As shown, a coating device for the production of artificial leather, in this embodiment, includes: a set of processing tanks 10 extending in an arc and having an opening on the top side. The processing tank 10 includes a coating liquid section 11 located at the bottom end and a drying section 12 located at the top end. The coating liquid section 11 contains the coating liquid. A dryer is installed in the drying section 12. Two sets of barrier plates 13 for forming a barrier with the outside are also provided at both ends of the drying section 12. One end of the barrier plate 13 is drivenly connected to a top cylinder 14 installed at the bottom of the processing tank 10, and the other end is fitted with a set of top rollers 131. The equipment also includes: a rail shaft 20 coaxially distributed with the center of the arc segment of the processing tank 10, the rail shaft 20 having a guide groove in its axial direction for guiding through the frame unit group 30, the frame unit group 30 including a connecting sleeve 31 connected to the rail shaft 20 and frame sleeves 32 located at both ends of the connecting sleeve 31, each of the two sets of frame sleeves 32 having a first rotating ring 33 and a second rotating ring 34 rotatably mounted on its outer side, and each of the first rotating rings 33 and the second rotating ring 34 having a drive gear ring on one side, a rotary motor 35 mounted on the frame sleeve 32, the drive end of the rotary motor 35 being connected to an external gear 36 meshing with the drive gear ring, and the two sets of first rotating rings 33 located on the outer side having a drive gear ring 36 on its outer side. Two sets of unwinding adapter sleeves 38 are connected by the first frame rod 37. A set of unwinding rollers 41 are mounted and installed inside the unwinding adapter sleeve 38. Two sets of take-up adapter sleeves 40 are connected to the two sets of second rotating rings 34 on the inner side by the second frame rod 39. A set of take-up rollers 51 are mounted and installed inside the take-up adapter sleeve 40. The unwinding rollers 41 and take-up rollers 51 are distributed parallel to the rail shaft 20. When the unwinding rollers 41 and take-up rollers 51 move along the rail shaft 20 with the frame sleeve 32 to the top of the processing tank 10, the take-up rollers 51 drive one end of the unwound artificial leather to rotate around the center of the rail shaft 20 under the drive of the rotary motor 35 so as to pass through the inside of the processing tank 10. The frame unit group 30 also includes an arc-shaped cover plate 60 connected to the connecting sleeve 31 via a third frame rod. The center of the arc segment of the arc-shaped cover plate 60 is also coaxially arranged with the rail shaft 20. When the arc-shaped cover plate 60 moves above the processing tank 10, it is used to cooperate with the two sets of baffle plates 13 to form the sealing cavity of the drying section 12. The arc-shaped cover plate 60 is also provided with a first pressure cylinder 61 and a second pressure cylinder 63. The driving end of the first pressure cylinder 61 is connected to a first mounting bracket for installing the first redirecting roller 62, and the driving end of the second pressure cylinder 63 is connected to a second mounting bracket for installing the second redirecting roller 64. After the take-up roller 51 rotates into the processing tank 10 and passes through the coating liquid section 11, the first deflector track, driven by the first pressure cylinder 61, presses the artificial leather into the coating liquid. After the take-up roller 51 passes through the drying section 12, the barrier plate 13, driven by the top cylinder 14, presses the artificial leather toward the arc-shaped cover plate 60. The arc-shaped cover plate 60 is also equipped with two sets of pressure rollers 65 for docking with the two sets of top rollers 131. The second deflector roller 64 is located between the two sets of pressure rollers 65 and is used to press the artificial leather close to the bottom of the drying section 12 under the drive of the second pressure cylinder 63.

[0023] The equipment also includes two sets of drive motors 70 mounted on a frame at both ends of the processing tank 10. The drive ends of the drive motors 70 are equipped with rectangular adapter sleeves 71 for engaging with the rectangular blocks 80 at the ends of the take-up roller 51 or unwind roller 41. The drive motors 70 are mounted on the drive ends of a turntable 72, which is mounted on the drive ends of a docking cylinder 73. Therefore, when the take-up roller 51 or unwind roller 41 rotates around the track shaft 20 to align with the drive motors 70, the turntable 72 drives the rectangular adapter sleeves 71 to rotate and align with the rectangular blocks 80. The docking cylinder 73 then drives the rectangular adapter sleeves 71 to dock with the rectangular blocks 80. The drive motors 70 then drive the take-up roller 51 or unwind roller 41 to rotate for take-up or unwinding operations. Furthermore, when unwinding to the end of the artificial leather, the unwind roller 41 connected to the end of the artificial leather moves with the end of the artificial leather. The first redirecting roller 62 retracts to above the arc-shaped cover plate 60 when the unwinding roller 41 enters the coating liquid section. When the unwinding roller 41 enters the drying section 12, the barrier plate 13 retracts from the processing tank 10 to allow the unwinding roller 41 to pass through. After the drying of the tail end is completed, the second redirecting roller 64 retracts to above the arc-shaped cover plate 60, and the barrier plate 13 retracts from the processing tank 10 to allow the unwinding roller 41 to pass through and leave the processing tank 10. Then, the take-up roller 51 is driven to disengage from the drive motor 70. The rotary motor 35 then drives the take-up roller 51 and the unwinding roller 41 to move away from the processing tank 10 together. Then, together with the connected frame sleeve 32 and connecting sleeve 31, they move along the rail axis 20 to move away from the processing tank 10 until the next set of frame unit groups 30 enters above the processing tank 10. One end of the rail shaft 20 is provided with a push rod 21 for pushing the frame unit group 30 forward, and the other end of the rail shaft 20 is provided with a stop rod 22 for extending and blocking the frame unit group 30 to continue moving forward when it moves above the processing tank 10. After the coating and drying are completed, the stop rod retracts and the push rod 21 continues to push the frame unit group 30 forward. Example 2 In this embodiment, a coating device for the production of artificial leather is further defined based on embodiment 1. Specifically, in order to achieve closer and more convenient positioning of the tail end and head end of the artificial leather by the take-up roller 51 and the unwind roller 41, both the take-up roller 51 and the unwind roller 41 are configured to include two sets of relatively combined semi-shaft units 82. When the two sets of semi-shaft units 82 are connected, they are used to clamp the tail end or head end of the artificial leather. The two ends of the two sets of semi-shaft units 82 are also driven by two sets of lead screws 83 in opposite directions to move the two sets of semi-shaft units 82 relatively away or relatively close. The end of the semi-shaft unit 82 is provided with a rectangular half block 81. The two sets of rectangular half blocks 81 are connected to form a rectangular block 80 for cooperating with a rectangular adapter sleeve 71.

[0024] At this point, the operator only needs to place the frame unit group 30 onto the rail shaft 20 in sequence, and then the top rod 21 will push the frame unit group 30 above the processing tank 10 to complete the fully automated winding and unwinding operation. After coating is completed, the roll can also be changed automatically, which is not only more time-saving and labor-saving, but also more efficient.

[0025] In summary, the coating equipment of the present invention mainly includes an arc-shaped processing tank 10 and a rail shaft 20 coaxially arranged therewith, and multiple frame unit groups 30 can move along the guide grooves on the rail shaft 20.

[0026] The treatment tank 10 is divided into a coating liquid section 11 and a drying section 12. The drying section 12 is equipped with baffle plates 13 at both ends and is driven by a top cylinder 14. One end of the rail shaft 20 has a top rod 21 and the other end has a retractable stop bar 22, which are used to control the movement and positioning of the frame unit group 30.

[0027] Each frame unit group 30 includes a connecting sleeve 31, a frame sleeve 32, a first rotating ring 33, a second rotating ring 34, a rotary motor 35, an external gear 36, an unwinding roller 41 (installed via a first frame rod 37 and an unwinding adapter sleeve 38), a winding roller 51 (installed via a second frame rod 39 and a winding adapter sleeve 40), an arc-shaped cover plate 60, a first pressure cylinder 61 (with a first redirecting roller 62), a second pressure cylinder 63 (with a second redirecting roller 64), and a pressure roller 65.

[0028] The device is equipped with drive motors 70 at both ends, and rectangular adapter sleeves 71 are provided at the drive ends. The drive motors 70 are mounted on turntables 72, which are driven by docking cylinders 73. The ends of take-up rollers 51 and unwind rollers 41 are provided with rectangular blocks 80 formed by docking two rectangular half-blocks 81, which can dock with the rectangular adapter sleeves 71.

[0029] The equipment operates as follows: Initially, the operator mounts the take-up roller 51, which has already clamped the artificial leather end, and the unwind roller 41 together onto a frame unit 30, and places it on the rail shaft 20 to await transfer. Then, the push rod 21 pushes the unit along the rail shaft 20 until it is blocked by the stop rod 22 and positioned above the processing tank 10.

[0030] At this time, the rotary motor 35, driven by gears, causes the take-up roller 51 to rotate around the track shaft 20, moving the artificial leather head end along the arc-shaped path of the treatment tank 10. When the artificial leather passes through the coating liquid section 11, the first pressure cylinder 61 drives the first deflector roller 62 to press down, ensuring that the artificial leather is immersed in the coating liquid. After entering the drying section 12, the barrier plate 13, driven by the top cylinder 14, cooperates with the arc-shaped cover plate 60 to form a sealing cavity. At the same time, the top roller 131 and the pressure roller 65 cooperate to press the artificial leather tightly. The second pressure cylinder 63 drives the second deflector roller 64 to press down, bringing the artificial leather closer to the drying heat source and improving the drying efficiency. After drying is completed, the artificial leather head end is wound up by the take-up roller 51.

[0031] Meanwhile, driven by the docking cylinder 73 and the turntable 72, the drive motors 70 at both ends of the treatment tank automatically dock their rectangular adapter sleeves 71 with the rectangular blocks 80 at the ends of the take-up roller 51 and the unwind roller 41. Subsequently, the drive motors 70 drive the take-up roller 51 to take up the roll and simultaneously drive the unwind roller 41 to unwind the roll, thus performing the main coating process.

[0032] When the unwinding reaches the end, the artificial leather tail is still clamped on the unwinding roller 41. At this time, the drive motor 70 disengages from the unwinding roller 41, and the rotary motor 35 restarts, driving the unwinding roller 41 to rotate along the arc-shaped path of the processing tank 10. During this process, the unwinding roller 41 (with the leather tail) passes sequentially through the coating liquid section 11 (at this time, the first deflector roller 62 has been retracted) and the drying section 12 (at this time, the baffle plate 13 has been retracted), so that the leather tail also completes the coating and drying, and is finally completely wound up by the take-up roller 51.

[0033] After winding is completed, the drive motor 70 disengages from the winding roller 51. The stop lever 22 retracts, and the push rod 21 pushes the completed frame unit group 30 away from the area above the processing tank. Subsequently, the next frame unit group 30 loaded with a new roll of artificial leather is pushed to the working position, starting a new cycle and realizing automatic roll changing.

[0034] This invention, through the aforementioned integrated automatic circulation design, completely solves the problems of incomplete processing of the beginning and end of raw materials and cumbersome roll changing in the production of artificial leather coating, and greatly improves production continuity and efficiency.

[0035] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A coating device for the production of artificial leather, characterized in that: include: A set of processing tanks (10) extending in an arc and having an opening on the top side, the processing tanks (10) include a coating liquid section (11) at one bottom end and a drying section (12) at one top end, and movable baffles (13) are provided at both ends of the drying section (12). A guide shaft (20) is coaxially distributed with the center of the arc segment of the processing groove (10), and a guide groove is provided on the axial direction of the guide shaft (20); At least one set of frame unit groups (30) movable along the rail axis (20), the frame unit group (30) includes a connecting sleeve (31) guided and connected to the outside of the rail axis (20), a frame sleeve (32) located at both ends of the connecting sleeve (31), a rotary motor (35) mounted on the frame sleeve (32), and an unwinding roller (41) and a winding roller (51) respectively connected to the outside of the frame sleeve (32) and parallel to the frame sleeve (32) via a first rotating ring (33) and a second rotating ring (34); the rotary motor (35) drives the first rotating ring (33) or the second rotating ring (34) to rotate via gear transmission; When the frame unit group (30) moves above the processing tank (10), the take-up roller (51) can be driven by the rotary motor (35) to rotate the artificial leather end drawn from the unwind roller (41) around the center of the rail shaft (20) and pass through the coating liquid section (11) and the drying section (12) in sequence.

2. The coating equipment for artificial leather production according to claim 1, characterized in that: The frame unit group (30) also includes an arc-shaped cover plate (60) connected to the connecting sleeve (31) via a frame rod. The center of the arc segment of the arc-shaped cover plate (60) is coaxially arranged with the rail shaft (20). When the frame unit group (30) is located above the processing tank (10), the arc-shaped cover plate (60) can cooperate with the barrier plate (13) to enclose and form the sealing cavity of the drying section (12).

3. A coating device for producing artificial leather according to claim 2, characterized in that: The arc-shaped cover plate (60) is provided with a first pressure cylinder (61) and a second pressure cylinder (63). The driving end of the first pressure cylinder (61) is connected to a first mounting bracket for installing a first deflector roller (62), and the driving end of the second pressure cylinder (63) is connected to a second mounting bracket for installing a second deflector roller (64). The first deflector roller (62) is used to press down on the artificial leather to immerse it in the coating liquid when the take-up roller (51) passes through the coating liquid section (11), and the second deflector roller (64) is used to press down on the artificial leather to bring it close to the bottom of the tank when the take-up roller (51) passes through the drying section (12).

4. A coating device for producing artificial leather according to claim 3, characterized in that: One end of the barrier plate (13) is driven to be connected to the top cylinder (14) installed at the bottom of the processing tank (10), and the other end is equipped with a top roller (131); the arc-shaped cover plate (60) is also equipped with a pressure roller (65) corresponding to the position of the top roller (131); when the barrier plate (13) is driven by the top cylinder (14) to move toward the arc-shaped cover plate (60), the top roller (131) and the pressure roller (65) cooperate to press the artificial leather.

5. A coating device for producing artificial leather according to claim 1, characterized in that: It also includes drive motors (70) mounted on the frame at both ends of the processing tank (10), and the drive end of the drive motor (70) is provided with a rectangular adapter sleeve (71); the drive motor (70) is mounted on the turntable (72), and the turntable (72) is mounted on the drive end of the docking cylinder (73); when the unwinding roller (41) or the winding roller (51) rotates to be aligned with the drive motor (70), the docking cylinder (73) can drive the rectangular adapter sleeve (71) to dock and drive the unwinding roller (41) or the winding roller (51) to rotate.

6. A coating device for producing artificial leather according to claim 5, characterized in that: The ends of the unwinding roller (41) and the winding roller (51) are provided with rectangular blocks (80), which are used to cooperate with the rectangular adapter sleeve (71) of the drive motor (70).

7. A coating device for producing artificial leather according to claim 6, characterized in that: The unwinding roller (41) and the winding roller (51) each include two sets of oppositely combined half-shaft units (82), which are used to clamp the ends of the artificial leather when the two sets of half-shaft units (82) are joined together; the ends of the two sets of half-shaft units (82) are provided with rectangular half-blocks (81), which form the rectangular block (80) after being joined together.

8. A coating device for producing artificial leather according to claim 1, characterized in that: One end of the rail shaft (20) is provided with a push rod (21) for pushing the frame unit group (30) forward along the axial direction, and the other end is provided with a telescopic stop bar (22) for extending to block and limit the frame unit group (30) when it moves above the processing tank (10).

9. A coating apparatus for producing artificial leather according to any one of claims 1-8, characterized in that: The coating liquid section (11) contains the coating liquid, and the drying section (12) is equipped with a dryer.

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