Cow leather retanning device
By combining motor-driven gears and a closed plate, the automated control of the cow leather retanning device is realized, which solves the problems of low drainage efficiency and cumbersome manual operation during the tanning process and improves production efficiency.
Patent Information
- Application Number
- CN202520394320.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-07
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2035-03-07
AI Technical Summary
Existing bovine leather retanning equipment has low water-draining efficiency during the tanning process and is cumbersome to operate manually, which affects production efficiency.
Design a bovine leather retanning device that uses a combination of motor-driven gears and a closed plate to automatically control the opening, closing, and rotation of the tanning cylinder, and automatically complete the feeding, retanning, and draining processes of bovine leather.
It improves the automation level of the cowhide retanning process, enhances the drainage efficiency, reduces manual operation, and increases production efficiency.
Smart Images

Figure CN223892775U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of cow leather re -tanning device, specifically is a kind of cow leather re -tanning device. BACKGROUND
[0002] The processing process of cow leather is usually divided into three stages of preparation, tanning and finishing, and the tanning, re-tanning and dyeing operations of cow leather production are completed in the drum, which plays an important role in leather production equipment. The drum used at present is usually used to stir the leather by using the stirring roller inside the drum during tanning, and after tanning is completed, it is first grabbed by the lifting gripper into the standby tank, drained for a period of time, and then taken out. This draining method is inefficient and reduces production efficiency.
[0003] Patent CN220056898U discloses a tanning device for tanning cow leather, which can drain water in the tanning cylinder, but the filter plate is manually opened and closed, and then the cow leather is put in and taken out, which is troublesome for manual opening and closing. UTILITY MODEL CONTENTS
[0004] This section aims to outline some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the abstract of the specification and the utility model name to avoid obscuring the purpose of this section, the abstract of the specification and the utility model name, and such simplifications or omissions cannot be used to limit the scope of the utility model.
[0005] In view of the above and / or the problems existing in the prior art, the utility model is proposed.
[0006] Therefore, the utility model aims to provide a cow leather re-tanning device. When using the device, first start the third motor to drive the second gear to rotate, drive the L-shaped rod and the closure plate to move, so that the fixed frame and the throwing and taking opening are leaked, then put the cow leather and the solvent into the tanning cylinder from the throwing and taking opening, then reset the closure plate, start the second motor to drive the rotating shaft and the poking rod to rotate, and at the same time start the first motor to drive the first gear to rotate, drive the tanning cylinder to rotate, so that the cow leather is re-tanned. After re-tanning is completed, the first motor drives the tanning cylinder to rotate to the position where the throwing and taking opening is directly below, the third motor is started to drive the closure plate to move, so that the throwing and taking opening leaks a small gap, so that the liquid can flow out of the gap, so that the cow leather is dried to a certain extent. Finally, the third motor drives the closure plate to move to completely expose the throwing and taking opening to take out the cow leather, so that the throwing and taking opening can be automatically opened and closed instead of manually.
[0007] To solve the above technical problems, according to one aspect of the utility model, the utility model provides the following technical scheme:
[0008] A kind of cow leather re-tanning device, it includes:
[0009] Tanning cylinder assembly, including base, the placement frame fixed symmetrically on the base, the tanning cylinder rotationally installed on the placement frame, the throw opening being opened in the tanning cylinder, the first tooth being evenly fixed on the outer wall of the tanning cylinder, the first gear being engaged with the first tooth and the first motor being installed on the placement frame and being coaxially connected with the first gear;
[0010] Toggle assembly, including the second motor being installed on the tanning cylinder, the rotating shaft being rotationally installed on the inner wall of the tanning cylinder and being coaxially connected with the second motor and the toggle lever being evenly fixed on the rotating shaft;
[0011] Switching assembly, including the fixed frame being connected on the throw opening, the insertion slot being opened on the outer wall of the fixed frame, the closure plate being inserted in the insertion slot, the L-shaped rod being fixed symmetrically on the side wall of the closure plate and being clamped on the fixed frame, the second tooth being evenly fixed on the outer wall of the L-shaped rod, the second gear being engaged with the second tooth, the third motor being coaxially connected with the second gear and the motor bracket being fixed on the third motor and being fixed on the fixed frame.
[0012] As a preferred scheme of the cow leather re-tanning device, a limit slot is symmetrically opened on the inner wall of the fixed frame, and the closure plate is inserted in the limit slot.
[0013] As a preferred scheme of the cow leather re-tanning device, a guide slot is opened on the L-shaped rod, a guide rod is inserted in the guide slot, and the guide rod is fixed on the outer wall of the fixed frame.
[0014] As a preferred scheme of the cow leather re-tanning device, a convex column is evenly fixed on the inner wall of the tanning cylinder, and the convex column is staggered with the toggle lever.
[0015] As a preferred scheme of the cow leather re-tanning device, a sealing strip is fixed on the edge of the limit slot.
[0016] Compared with the prior art, the beneficial effects of this utility model are as follows: When using this device, firstly, the third motor is turned on to drive the second gear to rotate, which drives the L-shaped rod and the sealing plate to move, so that the fixed frame and the dispensing port are exposed. Then, the cow leather and solvent are put into the tanning cylinder through the dispensing port. Then, the sealing plate is reset, the second motor is turned on to drive the rotating shaft and the actuating rod to rotate, and at the same time, the first motor is turned on to drive the first gear to rotate, which drives the tanning cylinder to rotate, so that the cow leather is retanned. After the retanning is completed, the first motor drives the tanning cylinder to rotate to the position where the dispensing port is directly below. Then, the third motor is turned on to drive the sealing plate to move, so that a small gap is exposed in the dispensing port, allowing the liquid to flow out from this gap, so that the cow leather is drained to a certain extent. Finally, the third motor drives the sealing plate to move, completely exposing the dispensing port to remove the cow leather, so as to replace the manual opening and closing of the dispensing port. Attached Figure Description
[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings and detailed embodiments. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:
[0018] Fig. 1 This is a schematic diagram of the overall structure of a bovine leather retanning device according to the present invention;
[0019] Fig. 2 This is a cross-sectional view of the structure of a bovine leather retanning device according to the present invention;
[0020] Fig. 3 This is a schematic diagram of the switching assembly of a bovine leather retanning device according to the present invention. Detailed Implementation
[0021] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.
[0022] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views showing the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, in actual manufacturing, the three-dimensional spatial dimensions of length, width, and depth should be included.
[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.
[0024] This invention provides a bovine leather retanning device. When using this device, firstly, a third motor is activated to drive the second gear to rotate, which in turn moves the L-shaped rod and the sealing plate, allowing the fixed frame and the dispensing port to be exposed. Then, the bovine leather and solvent are fed into the tanning cylinder through the dispensing port. Next, the sealing plate is reset, and the second motor is activated to drive the rotating shaft and the actuating rod to rotate. Simultaneously, the first motor is activated to drive the first gear to rotate, driving the tanning cylinder to rotate, thus retanning the bovine leather. After retanning is complete, the first motor drives the tanning cylinder to a position where the dispensing port is directly below. The third motor is then activated to move the sealing plate, creating a small gap in the dispensing port, allowing the liquid to flow out and partially draining the bovine leather. Finally, the third motor moves the sealing plate to fully expose the dispensing port and remove the bovine leather. This device automatically replaces manual operation of opening and closing the dispensing port.
[0025] Figs. 1-3 The diagram shown is an overall structural schematic of one embodiment of the bovine leather retanning device of this utility model. Please refer to [link / reference]. Figs. 1-3 The bovine leather retanning apparatus of this embodiment includes a tanning cylinder assembly 100, a toggle assembly 200, and a switch assembly 300 as its main body.
[0026] The tanning cylinder assembly 100 includes a base 110, a placement rack 120 symmetrically fixed on the base 110, a tanning cylinder 130 rotatably mounted on the placement rack 120, a dispensing port 130a opened on the tanning cylinder 130, first teeth 140 uniformly fixed on the outer wall of the tanning cylinder 130, a first gear 150 meshing with the first teeth 140, and a first motor 160 mounted on the placement rack 120 and coaxially connected to the first gear 150.
[0027] The actuating assembly 200 includes a second motor 210 mounted on the tanning cylinder 130, a rotating shaft 220 rotatably mounted on the inner wall of the tanning cylinder 130 and coaxially connected to the second motor 210, and actuating rods 230 uniformly fixed on the rotating shaft 220; protrusions 240 are uniformly fixed on the inner wall of the tanning cylinder 130, and the protrusions 240 and the actuating rods 230 are staggered.
[0028] The switch assembly 300 includes a fixed frame 310 connected to the dispensing port 130a, a slot 310a formed on the outer wall of the fixed frame 310, a closing plate 320 inserted into the slot 310a, an L-shaped rod 330 symmetrically fixed to the side wall of the closing plate 320 and clamped to the fixed frame 310, second teeth 340 uniformly fixed to the outer wall of the L-shaped rod 330, a second gear 350 meshing with the second teeth 340, and a device coaxially connected to the second gear 350. The third motor 360 and the motor frame 370 are fixed on the third motor 360 and fixed on the fixed frame 310; the inner wall of the fixed frame 310 is symmetrically provided with limiting grooves 310b, the closing plate 320 is inserted into the limiting grooves 310b, the L-shaped rod 330 is provided with a guide groove 330a, the guide rod 380 is inserted into the guide groove 330a, and the guide rod 380 is fixed on the outer wall of the fixed frame 310; a sealing strip is fixed on the edge of the limiting groove 310b.
[0029] Combination Figs. 1-3 The specific operation of the bovine leather retanning apparatus of this embodiment is as follows: When using this apparatus, first turn on the third motor 360 to drive the second gear 350 to rotate, driving the L-shaped rod 330 and the sealing plate 320 to move, so that the fixed frame 310 and the feeding port 130a are exposed. Then, the bovine leather and solvent are fed into the tanning cylinder 130 through the feeding port 130a. Then, the sealing plate 320 is reset, the second motor 210 is turned on to drive the rotating shaft 220 and the actuating rod 230 to rotate, and at the same time, the first motor 160 is turned on to drive the first gear 150 to rotate. The first motor 160 drives the tanning cylinder 130 to rotate, causing the cowhide to be retanned. After retanning, the first motor 160 drives the tanning cylinder 130 to rotate to the position where the dispensing port 130a is directly below. The third motor 360 is then turned on to move the sealing plate 320, causing the dispensing port 130a to open slightly, allowing liquid to flow out through this gap and the cowhide to be partially drained. Finally, the third motor 360 drives the sealing plate 320 to move, fully exposing the dispensing port 130a to remove the cowhide. This allows the dispensing port 130a to be opened and closed automatically, replacing manual operation.
[0030] Although the present invention has been described above with reference to embodiments, various modifications can be made and components can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the features in the embodiments disclosed in this invention can be combined with each other in any way. The lack of an exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.
Claims
1. A bovine leather retanning apparatus, characterized in that, include: The tanning cylinder assembly (100) includes a base (110), a placement rack (120) symmetrically fixed on the base (110), a tanning cylinder (130) rotatably mounted on the placement rack (120), a dispensing port (130a) opened on the tanning cylinder (130), a first tooth (140) uniformly fixed on the outer wall of the tanning cylinder (130), a first gear (150) meshing with the first tooth (140), and a first motor (160) mounted on the placement rack (120) and coaxially connected to the first gear (150). The actuation assembly (200) includes a second motor (210) mounted on the tanning cylinder (130), a rotating shaft (220) rotatably mounted on the inner wall of the tanning cylinder (130) and coaxially connected to the second motor (210), and an actuation rod (230) uniformly fixed on the rotating shaft (220); The switch assembly (300) includes a fixed frame (310) connected to the dispensing port (130a), a slot (310a) formed on the outer wall of the fixed frame (310), a closing plate (320) inserted into the slot (310a), an L-shaped rod (330) symmetrically fixed to the side wall of the closing plate (320) and clamped to the fixed frame (310), a second tooth (340) uniformly fixed to the outer wall of the L-shaped rod (330), a second gear (350) meshing with the second tooth (340), a third motor (360) coaxially connected to the second gear (350), and a motor frame (370) fixed to the third motor (360) and fixed to the fixed frame (310).
2. The bovine leather retanning apparatus according to claim 1, characterized in that, The inner wall of the fixed frame (310) is symmetrically provided with limiting grooves (310b), and the closing plate (320) is inserted into the limiting grooves (310b).
3. The bovine leather retanning apparatus according to claim 1, characterized in that, The L-shaped rod (330) has a guide groove (330a), and a guide rod (380) is inserted into the guide groove (330a). The guide rod (380) is fixed on the outer wall of the fixed frame (310).
4. The bovine leather retanning apparatus according to claim 1, characterized in that, The inner wall of the tanning cylinder (130) is uniformly fixed with protruding posts (240), and the protruding posts (240) are staggered with the actuating rod (230).
5. The bovine leather retanning apparatus according to claim 2, characterized in that, A sealing strip is fixed on the edge of the limiting groove (310b).