An antistatic green leather tanning drum with multi-directional adjustment
By designing a multi-directional adjustable antistatic leather green tanning drum, the problem of the inability to adjust the drum's tilt angle was solved, achieving uniform penetration of tanning agents and effective elimination of static electricity, thus improving tanning efficiency and safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ANHUI YINHE LEATHER CO LTD
- Filing Date
- 2025-09-27
- Publication Date
- 2026-07-21
AI Technical Summary
Existing drums cannot adjust the tilt angle, making it difficult to adapt to leathers of different thicknesses and materials, resulting in poor tanning uniformity. Furthermore, static electricity accumulation during the tanning process affects the cleanliness and safety of the leather.
A multi-directional adjustable antistatic leather green tanning drum was designed. The tilt angle of the drum can be adjusted through the synergistic action of hydraulic push rods and slides. It is equipped with an antistatic eliminator to eliminate static electricity. Combined with limiting components and lifting plate components, it ensures the stability and uniformity of the tanning process.
It enables flexible adjustment of the drum angle, ensuring uniform penetration of tanning agents, reducing energy consumption, improving tanning efficiency, eliminating the risk of electrostatic sparks, and ensuring the cleanliness of the leather surface and production safety.
Smart Images

Figure CN224530919U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of leather production technology, specifically to an antistatic leather green tanning drum with multi-directional adjustment. Background Technology
[0002] In the leather tanning process, the drum is the core equipment for achieving full contact and reaction between the tanning agent and the leather.
[0003] The existing drum tilt angle cannot be adjusted, making it difficult to adapt to leathers of different thicknesses and materials, as well as the diverse needs of green tanning processes. This results in poor tanning uniformity, affecting leather quality. During the tanning process, friction between the leather and the inner wall of the drum, as well as between the leather itself, easily generates static electricity. The accumulation of static electricity not only attracts dust and impurities, affecting the cleanliness of the tanning process, but may also pose safety hazards. Utility Model Content
[0004] To address the shortcomings of existing technologies, this utility model provides an antistatic leather green tanning drum with multi-directional adjustment.
[0005] To achieve the above objectives, the technical solution of this utility model is as follows:
[0006] A multi-directional adjustable antistatic leather green tanning drum includes a worktable, the top of which is equipped with a drum mechanism;
[0007] The drum mechanism includes a base plate located on top of a workbench. Sliding columns are fixed to both sides of the base plate. Two fixed seats are fixed to the top of the workbench. The sliding columns pass through the fixed seats and are connected to them via bearings. Two side plates are fixed to the top of the base plate. A rotating rod is connected to one side of each side plate via a bearing. A drum is fixed between the two rotating rods. A motor is fixed to one side of one of the side plates, and the motor's output end is fixedly connected to the rotating rod. Two adjusting components are located at the bottom of the workbench. Each adjusting component includes a hydraulic push rod fixed to the bottom of the workbench. A connecting block is fixedly connected to the output end of the hydraulic push rod. Sliding shafts are fixed to both sides of the connecting block. Two sliding frames are fixed to the bottom of the base plate, and the sliding shafts slide within the sliding frames.
[0008] Preferably, the top of the workbench is provided with a limiting component, which includes two support plates. The two support plates are fixedly mounted on the top of the workbench. Each of the two support plates has an arc-shaped groove on one side, and a plurality of limiting holes are provided on one side of the arc-shaped groove. The bottom of the base plate has a second bottom groove, and two electric push rods are fixedly mounted inside the second bottom groove. The output ends of the two electric push rods are fixedly mounted with sliders. The bottom of the base plate has two first bottom grooves. The sliders slide inside the first bottom grooves. A limiting rod is fixedly mounted on one side of the sliders. The limiting rods penetrate the base plate and extend out of the base plate. One end of the limiting rods engages with a limiting hole.
[0009] Preferably, a controller is mounted on one side of one of the support plates.
[0010] Preferably, one of the rotating rods is equipped with an electrostatic eliminator on one side, and the electrostatic eliminator is connected to the rotating drum.
[0011] Preferably, the drum is provided with multiple lifting plate assemblies. Each lifting plate assembly includes a fixed lifting plate, which is fixedly disposed inside the drum. The fixed lifting plate is provided with a movable lifting plate inside the fixed lifting plate. A first threaded rod is connected to one side of the movable lifting plate via a bearing. The first threaded rod passes through the fixed lifting plate and the drum and is connected to the connection between the fixed lifting plate and the drum via a thread. A first turntable is fixedly connected to one end of the first threaded rod.
[0012] Preferably, the bottom of the workbench is fixedly provided with multiple support columns.
[0013] Preferably, the top of the drum is provided with a door panel, and a connecting plate is fixedly provided on one side of the door panel, and the door panel is slidably connected to the side wall of the drum.
[0014] Preferably, a second threaded rod is threadedly connected to one side of the drum, the second threaded rod passes through the connecting plate, and a second turntable is fixedly connected to one end of the second threaded rod.
[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0016] 1. Through the coordinated action of hydraulic push rod, slide frame and slide shaft, the base plate is driven to rotate around the slide column, realizing the adjustment of the drum tilt angle, which is suitable for thin and thick leather. Thin leather can be tilted at a small angle to prolong the sliding contact time, while thick leather can be tilted at a large angle to enhance the turning force and ensure uniform penetration of tanning agent. By rotating the first turntable, the first threaded rod is moved to control the extension length of the movable lifting plate in the fixed lifting plate. It can be flexibly adapted according to the amount of leather loaded in the drum, avoiding leather accumulation or insufficient turning, reducing energy consumption and improving tanning efficiency.
[0017] 2. Built-in dedicated static eliminator, connected to the drum via a rotating rod, acts directly on the tanning area to neutralize static electricity generated by friction between the leather and the drum in real time. This improves static elimination efficiency, effectively prevents dust adsorption, ensures the cleanliness of the leather surface, eliminates the risk of static sparks, and enhances production safety. An additional limiting component is added; an electric push rod pushes the limiting rod into the limiting hole of the support plate. Combined with the support of the arc groove on the base plate, stable fixation can be achieved at any tilt angle, preventing shaking during drum operation, ensuring a smooth tanning process, and reducing leather damage. Attached Figure Description
[0018] The disclosure of this utility model is illustrated with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. In the drawings, the same reference numerals are used to refer to the same parts. Wherein:
[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0020] Figure 2 This is a bottom view of the overall structure of this utility model;
[0021] Figure 3 Cross-sectional view of the overall structure of this utility model Figure 1 ;
[0022] Figure 4 Cross-sectional view of the overall structure of this utility model Figure 2 ;
[0023] Figure 5 This is a perspective view of the support plate of this utility model;
[0024] Figure 6 This utility model Figure 1 Enlarged view of the structure at point A in the image.
[0025] The diagram shows the following components: 1. Workbench; 2. Fixed base; 3. Sliding column; 4. Support column; 5. Support plate; 6. Controller; 7. Base plate; 8. Side plate; 9. Motor; 10. Drum; 11. Door panel; 12. First turntable; 13. First threaded rod; 14. Rotating rod; 15. Static eliminator; 16. Carriage; 17. Connecting block; 18. Sliding shaft; 19. Hydraulic push rod; 20. Fixed lifting plate; 21. Movable lifting plate; 22. First bottom groove; 23. Second bottom groove; 24. Sliding block; 25. Electric push rod; 26. Limiting rod; 27. Arc groove; 28. Limiting hole; 29. Connecting plate; 30. Second threaded rod; 31. Second turntable. Detailed Implementation
[0026] It is readily understood that, based on the technical solution of this utility model, those skilled in the art can propose various interchangeable structural methods and implementations without altering the essential spirit of this utility model. Therefore, the following detailed embodiments and accompanying drawings are merely illustrative descriptions of the technical solution of this utility model and should not be considered as the entirety of this utility model or as limitations or restrictions on the technical solution of this utility model.
[0027] Example
[0028] like Figures 1-6 As shown, an antistatic leather green tanning drum with multi-directional adjustment includes a worktable 1, and a drum mechanism is provided on the top of the worktable 1.
[0029] The drum mechanism includes a base plate 7, which is located on top of the workbench 1. Sliding columns 3 are fixedly mounted on both sides of the base plate 7. Two fixed seats 2 are fixedly mounted on the top of the workbench 1. The sliding columns 3 pass through the fixed seats 2 and are connected to them via bearings. Two side plates 8 are fixedly mounted on the top of the base plate 7. A rotating rod 14 is connected to one side of each side plate 8 via a bearing. A drum 10 is fixedly mounted between the two rotating rods 14. A motor 9 is fixedly mounted on one side of one of the side plates 8, and the output end of the motor 9 is fixedly connected to the rotating rod 14. Two adjusting components are located at the bottom of the workbench 1. Each adjusting component includes a hydraulic push rod 1. 9. The hydraulic push rod 19 is fixedly installed at the bottom of the workbench 1. The output end of the hydraulic push rod 19 is fixedly connected to the connecting block 17. The connecting block 17 is fixedly provided with sliding shafts 18 on both sides. The bottom of the base plate 7 is fixedly provided with two slides 16. The sliding shafts 18 slide inside the slides 16. The hydraulic push rod 19 is started by the controller 6. The output end of the hydraulic push rod 19 pushes the connecting block 17 to move upward. The sliding shafts 18 on both sides of the connecting block 17 slide inside the slides 16. At the same time, the slides 16 and the base plate 7 are lifted upward. The sliding columns 3 on both sides of the base plate 7 rotate around the fixed seat 2. The drum 10 gradually tilts with the base plate 7 until the tilt angle reaches the preset value.
[0030] The workbench 1 is equipped with a limiting component at its top, which includes two support plates 5. The two support plates 5 are fixedly mounted on the top of the workbench 1. Each of the two support plates 5 has an arc-shaped groove 27 on one side, and multiple limiting holes 28 are formed on one side of the arc-shaped groove 27. The bottom of the base plate 7 has a second bottom groove 23, and two electric push rods 25 are fixedly mounted inside the second bottom groove 23. A slider 24 is fixedly mounted at the output end of each of the two electric push rods 25. The bottom of the base plate 7 has two first bottom grooves 22, and the slider 24 slides inside the first bottom grooves 22. A limiting rod 26 is fixedly mounted on one side of the slider 24, and the limiting rod 26 penetrates the base plate. 7. The limit rod 26 extends out of the base plate 7. One end of the limit rod 26 is engaged with the limit hole 28. A controller 6 is installed on one side of one of the support plates 5. The controller 6 starts the electric push rod 25. The output end of the electric push rod 25 pushes the slider 24 to move along the first bottom groove 22 towards the support plate 5. The slider 24 drives the limit rod 26 to extend out of the base plate 7 until one end of the limit rod 26 is engaged in the limit hole 28 corresponding to the arc groove 27 on the support plate 5 (each limit hole corresponds to a 5° tilt angle, and 10° corresponds to the second limit hole). The electric push rod 25 is then turned off. At this time, the limit rod 26 and the hydraulic push rod 19 work together to ensure that the drum is stably maintained at the preset tilt angle.
[0031] One of the rotating rods 14 is equipped with an electrostatic eliminator 15, which is connected to the rotating drum 10. When the motor 9 starts, the electrostatic eliminator 15 is turned on by the controller 6 to eliminate static electricity. The electrostatic eliminator 15 is a model SL-080 electrostatic eliminator.
[0032] The drum 10 is equipped with multiple lifting plate assemblies, including a fixed lifting plate 20, which is fixedly installed inside the drum 10. A movable lifting plate 21 is located inside the fixed lifting plate 20. A first threaded rod 13 is connected to one side of the movable lifting plate 21 via a bearing. The first threaded rod 13 passes through the fixed lifting plate 20 and the drum 10, and is threadedly connected to the connection point between the fixed lifting plate 20 and the drum 10. One end of the first threaded rod 13 is fixedly connected to a first turntable 12. According to preset parameters, manually rotating the first turntable 12 causes the first threaded rod 13 to rotate clockwise, pushing the movable lifting plate 21 out from inside the fixed lifting plate 20 until it reaches a preset length.
[0033] The bottom of the workbench 1 is fixedly provided with multiple support columns 4, which support the workbench 1.
[0034] The drum 10 is provided with a door panel 11 at the top. A connecting plate 29 is fixedly provided on one side of the door panel 11. The door panel 11 is slidably connected to the side wall of the drum 10. A second threaded rod 30 is threadedly connected to one side of the drum 10. The second threaded rod 30 passes through the connecting plate 29. A second turntable 31 is fixedly connected to one end of the second threaded rod 30. Rotating the second turntable 31 causes the second threaded rod 30 to rotate, so that the second threaded rod 30 is released from the locked state of the connecting plate 29. The door panel 11 slides along the side wall of the drum 10, exposing the feed port. The leather to be tanned and the green tanning agent are poured into the drum in proportion, ensuring that the tanning agent liquid level is above 1 / 3 of the height of the leather.
[0035] The usage process of this utility model is as follows:
[0036] Leather and tanning agent loading
[0037] Open the drum feed inlet: Rotate the second turntable 31 to drive the second threaded rod 30 to rotate, so that the second threaded rod 30 is released from the locking state of the connecting plate 29. Slide the door panel 11 along the side wall of the drum 10 to expose the feed inlet. Pour the leather to be tanned and the green tanning agent into the drum in proportion, ensuring that the tanning agent liquid level is above 1 / 3 of the height of the leather.
[0038] Sealing the feed inlet: Slide the door panel 11 along the side wall of the drum to cover the feed inlet, rotate the second turntable 31, and drive the second threaded rod 30 to move forward until the second threaded rod 30 tightly abuts against the connecting plate 29 to achieve door panel sealing and prevent tanning agent leakage during tanning process;
[0039] Multi-directional adjustment and fixation
[0040] Lifting plate height adjustment: According to the preset parameters, manually rotate the first turntable 12. The first turntable 12 drives the first threaded rod 13 to rotate clockwise, pushing the movable lifting plate 21 to extend from the inside of the fixed lifting plate 20 until it reaches the preset length.
[0041] Drum tilt angle adjustment: The hydraulic push rod 19 is activated by the controller 6. The output end of the hydraulic push rod 19 pushes the connecting block 17 to move upward. The sliding shafts 18 on both sides of the connecting block slide inside the slide 16, which at the same time drives the slide 16 and the base plate 7 to lift upward. The sliding columns 3 on both sides of the base plate 7 rotate around the fixed seat 2. The drum 10 gradually tilts with the base plate 7 until the tilt angle reaches the preset value.
[0042] Limiting and fixing: The electric push rod 25 is started by the controller 6. The output end of the electric push rod 25 pushes the slider 24 to move along the first bottom groove 22 towards the support plate 5. The slider 24 drives the limiting rod 26 to extend out of the bottom plate 7 until one end of the limiting rod 26 is inserted into the limiting hole 28 corresponding to the arc groove 27 on the support plate 5 (each limiting hole corresponds to a 5° tilt angle, and 10° corresponds to the second limiting hole). The electric push rod 25 is then turned off. At this time, the limiting rod 26 and the hydraulic push rod 19 work together to ensure that the drum is stably maintained at the preset tilt angle.
[0043] Tanning process and static electricity elimination
[0044] Start the tanning process: Start the motor 9 through the controller 6. The output of the motor 9 drives the rotating rod 14 to rotate clockwise. The drum 10 rotates synchronously with the rotating rod. The fixed lifting plate 20 and the movable lifting plate 21 inside the drum 10 rotate with the drum 10, lifting the leather to a certain height and then letting it fall naturally, so as to achieve full turning and contact between the leather and the tanning agent. The controller model is set to 6PLC-S7-200SMART type controller.
[0045] Real-time static electricity elimination: When the motor 9 starts, the static electricity eliminator 15 is turned on by the controller 6. The static electricity eliminator 15 eliminates static electricity. The model of the static electricity eliminator 15 is set to SL-080 static electricity eliminator.
[0046] Tanning completion and equipment cleaning
[0047] Stop and reset: After tanning is completed, the controller 6 sequentially shuts down the motor 9 and the static eliminator 15, starts the electric push rod 25, controls the slider 24 and the limit rod 26 to retract, releases the limit fixation, starts the hydraulic push rod 19, controls the output end of the hydraulic push rod 19 to retract downward, and drives the base plate 7 and the drum 10 to reset to the horizontal state.
[0048] The technical scope of this utility model is not limited to the content described above. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of this utility model, and all such modifications and variations should fall within the protection scope of this utility model.
Claims
1. A multi-directional adjustable antistatic leather green tanning drum, characterized in that: Includes a workbench (1), the top of which is provided with a rotating drum mechanism; The drum mechanism includes a base plate (7) located on the top of the workbench (1). Sliding columns (3) are fixedly mounted on both sides of the base plate (7). Two fixed seats (2) are fixedly mounted on the top of the workbench (1). The sliding columns (3) pass through the fixed seats (2) and are connected to them via bearings. Two side plates (8) are fixedly mounted on the top of the base plate (7). Rotating rods (14) are connected to one side of each side plate (8) via bearings. A drum (10) is fixedly mounted between the two rotating rods (14). One of the side plates (8)... 8) A motor (9) is fixedly provided on one side. The output end of the motor (9) is fixedly connected to the rotating rod (14). Two adjustment components are provided at the bottom of the workbench (1). The adjustment components include a hydraulic push rod (19). The hydraulic push rod (19) is fixedly provided at the bottom of the workbench (1). A connecting block (17) is fixedly connected to the output end of the hydraulic push rod (19). Sliding shafts (18) are fixedly provided on both sides of the connecting block (17). Two slides (16) are fixedly provided at the bottom of the base plate (7). The sliding shafts (18) slide inside the slides (16).
2. The antistatic leather green tanning drum with multi-directional adjustment according to claim 1, characterized in that: The workbench (1) is provided with a limiting component at the top. The limiting component includes two support plates (5). The two support plates (5) are fixedly installed on the top of the workbench (1). An arc groove (27) is opened on one side of each of the two support plates (5). Multiple limiting holes (28) are opened on one side of the arc groove (27). A second bottom groove (23) is opened at the bottom of the base plate (7). Two electric push rods (25) are fixedly installed inside the second bottom groove (23). A slider (24) is fixedly installed at the output end of each of the two electric push rods (25). Two first bottom grooves (22) are opened at the bottom of the base plate (7). The slider (24) slides inside the first bottom groove (22). A limiting rod (26) is fixedly installed on one side of the slider (24). The limiting rod (26) passes through the base plate (7) and extends out of the outside of the base plate (7). One end of the limiting rod (26) is engaged with the limiting hole (28).
3. The antistatic leather green tanning drum with multi-directional adjustment according to claim 2, characterized in that: A controller (6) is installed on one side of one of the support plates (5).
4. The antistatic drum for green tanning leather with multi-directional adjustment according to claim 1, characterized in that: One of the rotating rods (14) is equipped with an electrostatic eliminator (15) on one side, and the electrostatic eliminator (15) is connected to the rotating drum (10).
5. The antistatic leather green tanning drum with multi-directional adjustment according to claim 1, characterized in that: The drum (10) is provided with multiple lifting plate assemblies. The lifting plate assembly includes a fixed lifting plate (20), which is fixedly installed inside the drum (10). The fixed lifting plate (20) is provided with a movable lifting plate (21) inside the fixed lifting plate (20). A first threaded rod (13) is connected to one side of the movable lifting plate (21) through a bearing. The first threaded rod (13) passes through the fixed lifting plate (20) and the drum (10) and is connected to the connection between the fixed lifting plate (20) and the drum (10) through a thread. A first turntable (12) is fixedly connected to one end of the first threaded rod (13).
6. The antistatic drum for green tanning leather with multi-directional adjustment according to claim 1, characterized in that: The bottom of the workbench (1) is fixed with multiple support columns (4).
7. The antistatic drum for green tanning leather with multi-directional adjustment according to claim 1, characterized in that: The top of the drum (10) is provided with a door panel (11), and a connecting plate (29) is fixedly provided on one side of the door panel (11). The door panel (11) is slidably connected to the side wall of the drum (10).
8. The antistatic drum for green tanning leather with multi-directional adjustment according to claim 7, characterized in that: The drum (10) has a second threaded rod (30) connected to one side by a thread. The second threaded rod (30) passes through the connecting plate (29). One end of the second threaded rod (30) is fixedly connected to a second turntable (31).