A leather surface cleaning device for processing automotive interior leather
By introducing a pretreatment mechanism consisting of a cleaning plate and a vacuum pipe into the automotive interior leather processing unit, the problem of cleaning fluid contamination is solved, the service life of the cleaning fluid is extended, resource consumption is reduced, and the cleaning effect is improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WUHU HUAZE AUTO PARTS CO LTD
- Filing Date
- 2025-09-05
- Publication Date
- 2026-07-21
AI Technical Summary
In existing automotive interior leather processing equipment, the concentration of suspended particles and oil stains in the cleaning fluid gradually increases, resulting in a decrease in cleaning effect, an increase in the frequency of cleaning fluid replacement, and a shortening of the cleaning fluid usage time.
A pretreatment mechanism including a cleaning plate, a vacuum hose, and a cylinder was designed. The cleaning plate bristles remove floating dust and debris from the leather surface, and the vacuum hose and vacuum cleaner collect impurities. The partitioned design of the cleaning zone and the clean water zone reduces the entry of contaminants into the cleaning solution and extends the service life of the cleaning solution.
It effectively reduces the total amount of contaminants in the cleaning solution, extends the service life of the cleaning solution, reduces the frequency of replacement, reduces the consumption of cleaning agents and water resources, and improves the cleaning effect.
Smart Images
Figure CN224530918U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of cleaning device technology, specifically a leather surface cleaning device for automotive interior leather processing. Background Technology
[0002] The surface cleanliness of automotive interior leather directly affects the quality of subsequent coating, pressing, and other processes. If dust, oil, debris, or other impurities remain on the leather surface, it can lead to problems such as reduced coating adhesion and unclear embossing texture. Therefore, cleaning is a key step in the processing of automotive interior leather. A Chinese utility model patent (publication number: CN222100001 U) discloses a water-pressing device for leather processing, which can clean the upper and lower surfaces of the leather during the winding and transporting process. The device uses a cleaning brush to clean the upper and lower surfaces of the leather, improving the cleaning effect of the upper and lower surfaces of the leather. It can also perform a water-squeezing operation while winding, improving the processing efficiency of the leather and making it easier to remove and store the wound leather.
[0003] However, the above-mentioned device still has some shortcomings in use. Specifically, the existing device's cleaning mechanism directly introduces dust and debris that have fallen off the leather surface into the cleaning tank. Impurities are continuously mixed into the cleaning solution, causing the concentration of suspended particles and oil stains in the cleaning solution to gradually increase. This reduces the cleaning effect on the new leather surface, shortens the usage time of the cleaning solution, and increases the frequency of staff changing the cleaning solution. Therefore, in view of the above situation, a leather surface cleaning device for automotive interior leather processing is proposed. Utility Model Content
[0004] The purpose of this invention is to provide a leather surface cleaning device for automotive interior leather processing. Through the structural design of the mounting frame, cleaning plate, suction pipe and first cylinder, the total amount of contaminants entering the cleaning tank is reduced, the effective usage time of the cleaning fluid is increased, the frequency of water changes is reduced, and the consumption of cleaning agent and water resources is reduced. This solves the problem of reducing the usage time of the cleaning fluid and increasing the frequency of cleaning fluid changes by the staff.
[0005] This utility model is achieved through the following technical solution:
[0006] This utility model is a leather surface cleaning device for automotive interior leather processing, including a cleaning box, a pre-treatment mechanism fixed to the side wall of the cleaning box, and a squeezing mechanism fixed to the top of the cleaning box.
[0007] The pretreatment mechanism includes a mounting frame fixed to the side wall of the cleaning tank. A cleaning plate is fixed between the two side plates of the mounting frame. A first cylinder is fixed to the top of the mounting frame. The telescopic end of the first cylinder passes through the top plate of the mounting frame and is fixed to another cleaning plate. The two cleaning plates are arranged opposite each other.
[0008] The cleaning plate is hollow inside, with brush bristles fixed to the top and a dust suction port on the top. A connecting pipe is installed on the side wall of the cleaning plate, and a dust suction pipe is fixed to the side wall of the mounting bracket. The connecting pipe is connected to the dust suction pipe, and the air inlet of the dust suction pipe is connected to a vacuum cleaner.
[0009] Furthermore, a rectangular groove is provided on the side wall of the mounting bracket, and three through holes are provided on the top of the mounting bracket. The telescopic end of the first cylinder passes through the through holes, and the first guide rod is fitted with the other two through holes with clearance. The bottom of the first guide rod is fixed to the top of the cleaning plate.
[0010] Furthermore, the interior of the cleaning tank is fixed with partitions, dividing the interior of the cleaning tank into a cleaning zone and a clean water zone. There are two squeezing mechanisms, located above the cleaning zone and the clean water zone respectively.
[0011] Furthermore, the extrusion mechanism includes a support frame, an extrusion roller is rotatably mounted between the two side plates of the support frame, a second cylinder is fixed to the top of the support frame, a connecting frame is fixed after the telescopic end of the second cylinder passes through the support frame, and another extrusion roller is rotatably mounted between the two side plates of the connecting frame.
[0012] Furthermore, a round hole is provided at the top of the bracket, through which the telescopic end of the second cylinder passes. Grooves are provided on the inner surfaces of both side plates of the bracket, and a second guide rod is fixed on the groove. A hollow hole is provided on the connecting frame, and the hollow hole is fitted with the second guide rod with a clearance fit.
[0013] Furthermore, a support plate is fixed to one side wall of the cleaning tank, and the pretreatment mechanism is fixed to the support plate. Rollers are respectively installed on the support plate at both ends of the pretreatment mechanism.
[0014] Furthermore, guide rollers are horizontally rotatably installed inside both the cleaning zone and the clean water zone. Drain pipes are fixed at both ends of the outer wall of the cleaning tank, and the two drain pipes are connected to the cleaning zone and the clean water zone respectively. Valves are installed on the drain pipes.
[0015] This utility model has the following beneficial effects:
[0016] This utility model, through the structural design of the mounting frame, cleaning plate, suction pipe and first cylinder, can pre-treat the leather that is put into the cleaning tank for cleaning during use, remove more floating dust and loose debris from the leather surface, reduce the total amount of contaminants entering the cleaning tank, increase the effective use time of the cleaning solution, reduce the frequency of water changes, and reduce the consumption of cleaning agents and water resources.
[0017] This invention, through its structural design of a cleaning zone, a clean water zone, and a squeezing mechanism, allows for further cleaning in clean water after the initial cleaning process. This removes the cleaning solution from the leather surface, facilitating subsequent drying and other processing. Furthermore, before the leather enters the clean water zone from the cleaning zone, it can be squeezed to remove excess cleaning solution, reducing contamination of the clean water and extending its usage time.
[0018] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the cleaning device.
[0020] Figure 2 This is a schematic diagram of the pretreatment mechanism.
[0021] Figure 3 This is a schematic diagram of the cleaning board.
[0022] Figure 4 This is a schematic diagram of the extrusion mechanism.
[0023] In the diagram: 1. Cleaning tank; 10. Partition; 11. Cleaning area; 12. Clean water area; 2. Pre-treatment mechanism; 20. Mounting frame; 21. Cleaning plate; 210. Dust suction port; 211. Connecting pipe; 22. Dust suction pipe; 23. First cylinder; 24. First guide rod; 3. Extrusion mechanism; 30. Support; 31. Extrusion roller; 32. Second cylinder; 33. Connecting frame; 34. Groove; 35. Second guide rod; 4. Guide roller; 5. Support roller. Detailed Implementation
[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0025] Please see Figure 1-4 This utility model provides a technical solution: a leather surface cleaning device for automotive interior leather processing, including a cleaning box 1, a pre-treatment mechanism 2 fixed on the side wall of the cleaning box 1, and a squeezing mechanism 3 fixed on the top of the cleaning box 1.
[0026] A support plate is fixed to one side wall of the cleaning tank 1. The pretreatment mechanism 2 is fixed to the support plate. The support plate is provided with rollers 5 at both ends of the pretreatment mechanism 2. The rollers 5 are smooth stainless steel rollers with their axes perpendicular to the leather conveying direction. The installation height is flush with the top of the brush bristles of the cleaning plate 21 of the pretreatment mechanism 2 to ensure that the leather enters the pretreatment mechanism 2 horizontally and avoids uneven cleaning caused by gravity.
[0027] The pretreatment mechanism 2 includes a mounting frame 20 fixed to the side wall of the cleaning tank 1. A cleaning plate 21 is fixed between the two side plates of the mounting frame 20. A first cylinder 23 is fixed to the top of the mounting frame 20. After the telescopic end of the first cylinder 23 passes through the top plate of the mounting frame 20, another cleaning plate 21 is fixed thereon. The two cleaning plates 21 are arranged opposite to each other.
[0028] The cleaning plate 21 is hollow inside. Brush bristles are fixed on the top of the cleaning plate 21. A suction port 210 is opened on the top of the cleaning plate 21. A connecting pipe 211 is provided on the side wall of the cleaning plate 21. A suction pipe 22 is fixed on the side wall of the mounting bracket 20. The connecting pipe 211 is connected to the suction pipe 22. A vacuum cleaner is connected to the air inlet of the suction pipe 22.
[0029] The cleaning plate 21 has nylon bristles arranged in a matrix at the top, with rounded tips to avoid scratching the leather surface. The suction port 210 is a long, narrow slit (the length of which is adapted to the cleaning plate) that is evenly spaced along the bristle gaps to ensure that impurities can be sucked in immediately after being peeled off by the bristles.
[0030] The connecting pipe is a flexible corrugated pipe, and both ends can be connected to the cleaning plate 21 and the vacuum pipe 22 respectively by clamps and bolts, which is convenient for disassembly and cleaning. The vacuum pipe can be a PVC pipe.
[0031] The mounting bracket 20 has a rectangular groove on its side wall and three through holes on its top. The telescopic end of the first cylinder 23 passes through the through holes, and the other two through holes are fitted with first guide rods 24 with clearance. The bottom of the first guide rods 24 is fixed to the top of the cleaning plate 21.
[0032] The cleaning tank 1 is fixed with a partition 10, which divides the interior of the cleaning tank 1 into a cleaning zone 11 and a clean water zone 12. There are two squeezing mechanisms 3, which are located above the cleaning zone 11 and the clean water zone 12 respectively. The cleaning zone 11 can be equipped with an ultrasonic transducer, which enhances the ability of the cleaning liquid to remove impurities in the leather texture through high-frequency vibration.
[0033] The cleaning zone 11 and the clean water zone 12 are both horizontally rotatably equipped with guide rollers 4. Drain pipes are fixed at both ends of the outer wall of the cleaning box 1. The two drain pipes are connected to the cleaning zone 11 and the clean water zone 12 respectively. Valves are installed on the drain pipes.
[0034] The drain pipe is made of DN40 stainless steel. The drain pipe of the cleaning zone 11 is located at the bottom, which facilitates the complete removal of sediment. The drain pipe of the clear water zone 12 is located in the middle, which can remove floating impurities from the upper layer. The valve is a ball valve with a switching torque of ≤5N·m, which facilitates quick operation.
[0035] Among them, the guide roller 4 is covered with a silicone layer (Shore hardness 50°), with a diameter of 50mm, and its axis is horizontal and perpendicular to the leather conveying direction. The distance between adjacent guide rollers is 150mm, which ensures that the leather is conveyed in an "S" shaped path in the washing zone and the clean water zone, extending the contact time with the liquid.
[0036] The extrusion mechanism 3 includes a support 30, an extrusion roller 31 is rotatably mounted between the two side plates of the support 30, a second cylinder 32 is fixed to the top of the support 30, and a connecting frame 33 is fixed after the telescopic end of the second cylinder 32 passes through the support 30. Another extrusion roller 31 is rotatably mounted between the two side plates of the connecting frame 33.
[0037] The top of the bracket 30 has a round hole, through which the telescopic end of the second cylinder 32 passes. The inner surfaces of both side plates of the bracket 30 have grooves 34, on which a second guide rod 35 is fixed. The connecting frame 33 has a hollow hole, which is fitted with the second guide rod 35 with a clearance.
[0038] In specific use, the above embodiments involve external power supply and switch connection for all electrical equipment. Specifically:
[0039] The automotive interior leather is pulled by a conveying device (such as a winding machine) and enters the pre-treatment mechanism 2 horizontally via the idler roller 5. The extension end of the first cylinder 23 extends, driving the upper cleaning plate 21 to descend along the first guide rod 24 and cooperate with the lower cleaning plate 21 (the spacing is adjusted according to the leather thickness, usually leather thickness + 0.5mm).
[0040] The nylon bristles of the upper and lower cleaning plates 21 contact the upper and lower surfaces of the leather and move with the leather (conveying speed 5-10m / min), mechanically removing surface dust and debris;
[0041] An external vacuum cleaner (negative pressure ≥ -0.08MPa) draws air into the internal chamber of the cleaning plate through the suction pipe 22 and the connecting pipe 211. The detached impurities are sucked into the chamber through the suction port 210 and finally collected into the dust collection box of the vacuum cleaner, thus achieving the pre-treatment and removal of impurities.
[0042] The pre-treated leather enters the cleaning zone 11 of the cleaning tank 1: the leather passes through the cleaning zone in an "S" shape under the guidance of the guide roller 4 (the interior is filled with neutral cleaning liquid, and the liquid level is 20mm higher than the top guide roller). The high-frequency vibration generated by the ultrasonic transducer causes the cleaning liquid to form tiny bubbles. When the bubbles burst, the impact force removes the oil stains remaining in the leather texture.
[0043] After cleaning, the leather is conveyed to the squeezing mechanism 3 above the cleaning zone: the second cylinder 32 pushes the connecting frame 33 down along the second guide rod 35, and the upper and lower squeezing rollers 31 clamp the leather and rotate synchronously with the movement of the leather to squeeze out excess cleaning liquid from the surface. The leather treated in the cleaning zone 11 enters the clean water zone 12, where it is guided again by the guide roller 4 and comes into contact with clean water (which may contain a small amount of deionized water) to clean out residual cleaning liquid and small impurities. The squeezing mechanism 3 above the clean water zone squeezes the leather again to remove surface water.
[0044] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.
Claims
1. A leather surface cleaning device for automotive interior leather processing, comprising a cleaning tank (1), characterized in that: The cleaning tank (1) is fixed with a pretreatment mechanism (2) on its side wall and a squeezing mechanism (3) is fixed with its top. The pretreatment mechanism (2) includes a mounting bracket (20) fixed to the side wall of the cleaning tank (1). A cleaning plate (21) is fixed between the two side plates of the mounting bracket (20). A first cylinder (23) is fixed to the top of the mounting bracket (20). The telescopic end of the first cylinder (23) passes through the top plate of the mounting bracket (20) and is fixed to another cleaning plate (21). The two cleaning plates (21) are arranged opposite to each other. The cleaning plate (21) is hollow inside. Brush bristles are fixed on the top of the cleaning plate (21). A dust suction port (210) is opened on the top of the cleaning plate (21). A connecting pipe (211) is provided on the side wall of the cleaning plate (21). A dust suction pipe (22) is fixed on the side wall of the mounting bracket (20). The connecting pipe (211) is connected to the dust suction pipe (22). A vacuum cleaner is connected to the air inlet of the dust suction pipe (22).
2. The leather surface cleaning device for automotive interior leather processing according to claim 1, characterized in that, The mounting bracket (20) has a rectangular groove on its side wall and three through holes on its top. The telescopic end of the first cylinder (23) passes through the through holes, and the other two through holes are fitted with a first guide rod (24). The bottom of the first guide rod (24) is fixed to the top of the cleaning plate (21).
3. The leather surface cleaning device for automotive interior leather processing according to claim 1, characterized in that, The cleaning tank (1) is fixed with a partition (10) inside, which divides the inside of the cleaning tank (1) into a cleaning area (11) and a clean water area (12). There are two squeezing mechanisms (3), which are located above the cleaning area (11) and the clean water area (12), respectively.
4. The leather surface cleaning device for automotive interior leather processing according to claim 3, characterized in that, The extrusion mechanism (3) includes a bracket (30), an extrusion roller (31) is rotatably mounted between the two side plates of the bracket (30), a second cylinder (32) is fixed to the top of the bracket (30), a connecting frame (33) is fixed after the telescopic end of the second cylinder (32) passes through the bracket (30), and another extrusion roller (31) is rotatably mounted between the two side plates of the connecting frame (33).
5. The leather surface cleaning device for automotive interior leather processing according to claim 4, characterized in that, The top of the bracket (30) is provided with a round hole, and the telescopic end of the second cylinder (32) passes through the round hole. The inner surfaces of both side plates of the bracket (30) are provided with grooves (34), and a second guide rod (35) is fixed on the groove (34). The connecting frame (33) is provided with a hollow hole, and the hollow hole is clearance-fitted with the second guide rod (35).
6. The leather surface cleaning device for automotive interior leather processing according to claim 3, characterized in that, A support plate is fixed to one side wall of the cleaning tank (1), and the pretreatment mechanism (2) is fixed to the support plate. Rollers (5) are respectively provided on both ends of the support plate at the pretreatment mechanism (2).
7. The leather surface cleaning device for automotive interior leather processing according to claim 3, characterized in that, The cleaning zone (11) and the clean water zone (12) are both horizontally rotatably equipped with guide rollers (4). The two ends of the outer wall of the cleaning box (1) are respectively fixed with drain pipes. The two drain pipes are respectively connected to the cleaning zone (11) and the clean water zone (12). Each drain pipe is equipped with a valve.