Efficient coating device for ultrathin soft sofa leather
By employing a clean, recyclable coating structure and spring-loaded components in an ultra-thin, soft sofa leather high-efficiency coating device, the problem of dust affecting coating adhesion and paint recycling on the leather surface is solved, achieving efficient coating processing and environmentally friendly production.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHONGNIU GRP
- Filing Date
- 2025-06-09
- Publication Date
- 2026-05-19
AI Technical Summary
Existing sofa leather coating equipment is prone to dust or impurities adhering to the leather surface when processing ultra-thin and soft leather, which affects the adhesion of the coating. In addition, there is no effective recycling mechanism for excess paint during the spraying process, resulting in resource waste and environmental pollution.
An efficient coating device for ultra-thin and soft sofa leather was designed. It adopts a clean and recyclable coating structure, combined with a spring clamping component and a roller cleaning machine. The negative pressure dust collection system collects dust and recycles excess coating into a recycling rack, ensuring the uniformity and environmental friendliness of the coating.
It achieves efficient coating processing of ultra-thin and soft leather, ensuring coating adhesion and quality, while reducing resource waste and environmental pollution, and lowering process and time costs.
Smart Images

Figure CN224253250U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of leather processing equipment technology, specifically to an efficient coating device for ultra-thin and soft sofa leather. Background Technology
[0002] The coating of sofa leather is a key factor affecting the texture, durability, and maintenance costs of a sofa. Its type, process, and characteristics directly determine the user experience of the sofa. When processing ultra-thin and soft leather, existing sofa leather coating equipment directly sprays the coating onto the leather surface because the leather surface is prone to adhering to dust or impurities, which affects the adhesion of the coating and the quality of the leather. At the same time, there is no effective recycling mechanism for the excess coating generated during the spraying process, which not only wastes resources but may also pollute the working environment and increase the process and time costs. Utility Model Content
[0003] To achieve the above objectives, this utility model is implemented through the following technical solution: an ultra-thin soft sofa leather high-efficiency coating device, comprising: an equipment mounting platform, on which a clean recycling coating structure is installed;
[0004] The clean-type recycling coating structure includes: a processing conveyor belt, a pair of mounting plates, two pairs of mounting supports, a fixing plate, a roller cleaning machine, a dust collection box, a negative pressure dust extraction fan, a dust extraction hopper, a pair of spring clamping assemblies, a support frame, a storage tank, a sprayer, several recycling holes, and a recycling rack;
[0005] The processing conveyor belt is installed on the wall of the equipment mounting platform. A pair of mounting plates are installed at the front and rear positions of the left end of the processing conveyor belt. Two pairs of mounting supports are installed on the pair of mounting plates. A fixing plate is installed on the two pairs of mounting supports. A roller cleaner is installed on the lower wall of the fixing plate. A dust collection box is installed on the upper wall of the fixing plate. A negative pressure dust collector is installed on the air outlet of the upper wall of the dust collection box. The upper end of the dust collection hopper is installed on the side wall of the dust collection box, and the lower end is located on the side of the roller cleaner. A pair of spring clamping assemblies are installed on the inner wall of the two pairs of mounting supports. A support frame is installed on the outer position of the right end of the processing conveyor belt. A storage tank is installed above the support frame. A sprayer is installed on the lower wall of the top of the support frame. The sprayer is connected to the storage tank. Two pairs of recycling holes are opened on the equipment mounting platform. A recycling rack is installed on the lower wall of the equipment mounting platform.
[0006] Preferably, the equipment mounting platform is equipped with support legs.
[0007] Preferably, the fixing plate is mounted on two pairs of mounting supports by means of a mounting sleeve.
[0008] Preferably, reinforcing ribs are provided at the connection points between the two pairs of mounting rods and the mounting plate.
[0009] Preferably, the support frame is mounted on the equipment mounting platform by fixing bolts.
[0010] Preferably, each pair of spring clamping assemblies includes: a mounting bracket, a pair of fixed brackets, a pair of lifting rods, a pair of support platforms, a pair of compression springs, a lifting plate, and several clamping rollers;
[0011] The mounting bracket is installed on the mounting support rod. A pair of fixed brackets are installed on the upper wall of the mounting bracket. A pair of lifting rods are movably embedded in the mounting bracket. A pair of support platforms are fitted onto the pair of lifting rods. A pair of compression springs are fitted onto the pair of lifting rods and their lower ends are installed on the support platforms. The upper ends of the pair of compression springs are installed on the fixed brackets. The lifting plate is installed at the lower end of the pair of lifting rods. Several pressing rollers are installed on the lower wall of the lifting plate.
[0012] Beneficial effects
[0013] This utility model provides a high-efficiency coating device for ultra-thin and soft sofa leather, which has the following beneficial effects: This solution uses a clean-type recycling coating structure. The spring clamping component adapts to the flexible characteristics of ultra-thin leather through dynamic adjustment of the compression spring and clamping roller. Combined with the surface cleaning structure, it performs rapid cleaning. By integrating the roller cleaning machine, spraying machine and clean-type recycling coating structure into one unit, it achieves rapid cleaning and stain extraction and collection, ensuring the coating spraying effect. It solves the problem that when existing sofa leather coating equipment processes ultra-thin and soft leather, the leather surface is prone to adhering to dust or impurities. Direct spraying affects the adhesion of the coating on the leather surface and affects the quality of the leather. At the same time, the excess paint generated during the spraying process lacks an effective recycling mechanism, which not only wastes resources but may also pollute the working environment and increase the process flow and time costs. Attached Figure Description
[0014] Figure 1 This is a front-view perspective three-dimensional structural diagram of the ultra-thin soft sofa leather high-efficiency coating device described in this utility model.
[0015] Figure 2 This is a left-side structural schematic diagram of the high-efficiency coating device for ultra-thin soft sofa leather described in this utility model.
[0016] Figure 3 This is a right-side structural schematic diagram of the high-efficiency coating device for ultra-thin soft sofa leather described in this utility model.
[0017] Figure 4 This is a front-view, stereoscopic, partially enlarged structural diagram of the high-efficiency coating device for ultra-thin, soft sofa leather described in this utility model.
[0018] Figure 5 This is a three-dimensional structural diagram of the equipment mounting platform for the ultra-thin soft sofa leather high-efficiency coating device described in this utility model.
[0019] In the diagram: 1-Equipment mounting platform; 2-Processing conveyor belt; 3-Mounting plate; 4-Mounting support rod; 5-Fixing plate; 6-Roller cleaning machine; 7-Dust collection box; 8-Negative pressure dust extraction fan; 9-Dust extraction hopper; 10-Support frame; 11-Storage tank; 12-Sprayer; 13-Recovery hole; 14-Recovery rack; 15-Support leg; 16-Mounting sleeve; 17-Reinforcing rib; 18-Fixing bolt; 19-Mounting frame; 20-Fixing bracket; 21-Lifting rod; 22-Supporting platform; 23-Compression spring; 24-Lifting plate; 25-Pressure roller. Detailed Implementation
[0020] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0021] Example: Please refer to Figure 1-5 This utility model provides a technical solution: an efficient coating device for ultra-thin soft sofa leather. This solution takes into account that during the existing sofa leather surface coating spraying process, due to the stains adhering to the surface, direct spraying will affect the coating adhesion effect and the uniformity of the coating. Moreover, during the spraying process, it is impossible to collect excess paint, which increases production costs and will cause pollution to the working environment. Based on the above, this invention sets up the following technical means.
[0022] Specifically, this device includes at least an equipment mounting platform 1, a processing conveyor belt 2, a pair of mounting plates 3, two pairs of mounting supports 4, a fixing plate 5, a roller cleaning machine 6, a dust collection box 7, a negative pressure dust extraction fan 8, a dust extraction hopper 9, a pair of spring clamping assemblies, a support frame 10, a storage tank 11, a sprayer 12, several recycling holes 13, and a recycling rack 14.
[0023] Each pair of spring clamping assemblies includes: a mounting bracket 19, a pair of fixed brackets 20, a pair of lifting rods 21, a pair of support platforms 22, a pair of compression springs 23, a lifting plate 24, and several clamping rollers 25;
[0024] The equipment mounting platform 1, serving as the core support structure of the entire spraying system, is welded from high-strength steel. Its surface is treated with rust prevention and features anti-slip textures. The platform is securely connected to the ground via support legs 15 and anchor bolts, ensuring stability during operation. The top surface of the platform is precision milled, with a flatness error controlled within 0.1mm, providing a reference plane for the precise installation of subsequent functional modules. During operation, the operator lays the sofa leather to be treated flat on the mesh surface of the processing conveyor belt 2. This solution specifically selects a mesh conveyor belt woven from 304 stainless steel wire with a mesh size of 2mm × 2mm, ensuring sufficient support without affecting paint recycling. The drive system uses a servo motor paired with a precision reducer, and a frequency converter enables speeds from 0-5m. The stepless speed regulation of 1000r / min meets different process requirements. When the leather moves to the pressing station with the conveyor belt, the pressing mechanism starts to work. The surface of the pressing roller 6 is covered with high-elasticity polyurethane material. When the leather moves to the bottom of the pressing roller 25, it pushes the pressing roller 25 upward, thereby driving the support platform 22 to move upward through the lifting plate 24 and the lifting rod 21, which compresses the compression spring 23. The deformation elasticity of the compression spring 23 moves and presses the leather. The cleaning process adopts a modular design. The roller cleaning machine 14 installed under the fixed plate 13 is equipped with a replaceable nanofiber cleaning sleeve. It is driven by a 0.75kW motor to achieve a high-speed rotation of 500r / min to wipe and clean the leather surface. The negative pressure dust collection system linked to it is powered by a 3kW centrifugal fan 15, with an air volume of up to 2000m³ / min. 3 The flared design of the suction bucket 16 ensures that the effective suction range covers the entire conveyor belt. Dust is sucked into the dust collection box 7 through the suction bucket 9 using the negative pressure principle. The dust collection box 17 is equipped with a three-stage filtration system, including a pre-filter, a HEPA high-efficiency filter, and an activated carbon layer, achieving a dust removal efficiency of 99.97%. When the roller cleaning machine 6 cleans the leather surface, the rollers are pressed to fix the leather and prevent the leather from piling up due to rotation cleaning. After cleaning, the processing conveyor belt 2 continues to move and transport the leather. The spraying machine 12 extracts the paint from the storage tank 11 installed on the support frame 10 and sprays it downwards evenly to achieve efficient coating spraying of the sofa leather. During the spraying process, excess paint falls downwards through the mesh processing conveyor belt 2 and is collected into the recycling rack 14 through the recycling hole 13 opened on the equipment mounting platform 1, thereby realizing material recycling and reducing construction costs.
[0025] More specifically, the processing conveyor belt 2 is installed on the upper wall of the equipment mounting platform 1, a pair of mounting plates 3 are installed at the front and rear positions of the left end of the processing conveyor belt 2, two pairs of mounting supports 4 are installed on the pair of mounting plates 3, a fixing plate 5 is installed on the two pairs of mounting supports 4, a roller cleaning machine 6 is installed on the lower wall of the fixing plate 5, a dust collection box 7 is installed on the upper wall of the fixing plate 5, a negative pressure dust suction fan 8 is installed on the air outlet of the upper wall of the dust collection box 7, the upper end of the dust suction hopper 9 is installed on the side wall of the dust collection box 7 and the lower end is located on the side of the roller cleaning machine 6, a pair of spring clamping assemblies are installed on the inner wall of the two pairs of mounting supports 4, a support frame 10 is installed on the outer position of the right end of the processing conveyor belt 2, a storage tank 11 is installed above the support frame 10, a sprayer 12 is installed on the lower wall of the top of the support frame 10, the sprayer 12 is connected to the storage tank 11, two pairs of recycling holes 13 are opened on the equipment mounting platform 1, and a recycling rack 14 is installed on the lower wall of the equipment mounting platform 1.
[0026] Mounting bracket 19 is mounted on mounting support rod 4. A pair of fixed brackets 20 are mounted on the upper wall of mounting bracket 19. A pair of lifting rods 21 are movably embedded in mounting bracket 19. A pair of support platforms 22 are fitted onto the pair of lifting rods 21. A pair of compression springs 23 are fitted onto the pair of lifting rods 21 and their lower ends are mounted on the support platforms 22. The upper ends of the pair of compression springs 23 are mounted on the fixed brackets 20. Lifting plate 24 is mounted at the lower end of the pair of lifting rods 21. Several pressing rollers 25 are mounted on the lower wall of lifting plate 24.
[0027] In the specific implementation process, furthermore, support legs 15 are installed on the equipment mounting platform 1.
[0028] In the specific implementation process, the fixing plate 5 is further installed on the two pairs of mounting rods 4 through the mounting sleeve 16.
[0029] In the specific implementation process, furthermore, reinforcing ribs 17 are provided at the connection between the two pairs of mounting rods 4 and the mounting plate 3.
[0030] In the specific implementation process, the support frame 10 is further installed on the equipment mounting platform 1 by fixing bolts 18.
[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A high-efficiency coating device for ultra-thin, soft sofa leather, comprising: The equipment mounting platform (1) is characterized in that a clean recycling coating structure is installed on the equipment mounting platform (1); The clean-type recycling coating structure includes: a processing conveyor belt (2), a pair of mounting plates (3), two pairs of mounting supports (4), a fixing plate (5), a roller cleaner (6), a dust collection box (7), a negative pressure dust extraction fan (8), a dust extraction hopper (9), a pair of spring clamping assemblies, a support frame (10), a storage tank (11), a sprayer (12), several recycling holes (13), and a recycling rack (14); The processing conveyor belt (2) is installed on the upper wall of the equipment mounting platform (1). A pair of mounting plates (3) are installed at the front and rear positions of the left end of the processing conveyor belt (2). Two pairs of mounting supports (4) are installed on a pair of mounting plates (3). A fixing plate (5) is installed on two pairs of mounting supports (4). A roller cleaning machine (6) is installed on the lower wall of the fixing plate (5). A dust collection box (7) is installed on the upper wall of the fixing plate (5). A negative pressure dust collector (8) is installed on the air outlet of the upper wall of the dust collection box (7). The upper end of the dust collection hopper (9) is installed on the side wall of the dust collection box (7). The upper and lower ends are located on the side of the roller cleaning machine (6). A pair of spring clamping assemblies are installed on the inner wall of two pairs of mounting rods (4). The support frame (10) is installed on the outer side of the right end of the processing conveyor belt (2). The storage tank (11) is installed above the support frame (10). The sprayer (12) is installed on the lower wall of the top of the support frame (10). The sprayer (12) is connected to the storage tank (11). Two pairs of recycling holes (13) are opened on the equipment mounting platform (1). The recycling rack (14) is installed on the lower wall of the equipment mounting platform (1).
2. The ultra-thin, soft sofa leather high-efficiency coating device according to claim 1, characterized in that, Support legs (15) are installed on the equipment mounting platform (1).
3. The high-efficiency coating device for ultra-thin soft sofa leather according to claim 1, characterized in that, The fixing plate (5) is installed on the two pairs of mounting rods (4) via the mounting sleeve (16).
4. The high-efficiency coating device for ultra-thin soft sofa leather according to claim 1, characterized in that, Reinforcing ribs (17) are provided at the connection between the two pairs of mounting rods (4) and the mounting plate (3).
5. The ultra-thin, soft sofa leather high-efficiency coating device according to claim 1, characterized in that, The support frame (10) is mounted on the equipment mounting platform (1) by fixing bolts (18).
6. The high-efficiency coating device for ultra-thin soft sofa leather according to claim 1, characterized in that, Each pair of spring clamping assemblies includes: a mounting bracket (19), a pair of fixed brackets (20), a pair of lifting rods (21), a pair of support platforms (22), a pair of compression springs (23), a lifting plate (24), and several clamping rollers (25); The mounting bracket (19) is mounted on the mounting support rod (4), a pair of fixed brackets (20) are mounted on the upper wall of the mounting bracket (19), a pair of lifting rods (21) are movably embedded in the mounting bracket (19), a pair of support platforms (22) are fitted on the pair of lifting rods (21), a pair of compression springs (23) are fitted on the pair of lifting rods (21) and their lower ends are mounted on the support platforms (22), the upper ends of the pair of compression springs (23) are mounted on the fixed brackets (20), the lifting plate (24) is mounted at the lower end of the pair of lifting rods (21), and several pressing rollers (25) are mounted on the lower wall of the lifting plate (24).