Rotary drum device for leather processing

Abstract

The utility model relates to the technical field of leather processing, and discloses a drum device for leather processing, which comprises a support hinged to the left end of a bottom plate; the lead screw is rotationally connected to the inner side wall of the cavity; the motor is arranged on the outer side wall of the base, and a motor output shaft is fixedly connected with one end of the lead screw; the threaded block is in threaded connection to the lead screw, and the outer side wall of the threaded block is slidably connected to the interior of the cavity; the bottom end of the connecting rod is hinged to the top of the threaded block; and the pushing mechanism is arranged on the bottom plate and the rotary drum. After leather processing is completed, a motor is started, a threaded block drives the bottom end of a connecting rod to get close to the support, so that a bottom plate rotates along the support, the inclination angle of the rotary drum is changed, the leather can automatically slide towards the discharging port and slide out of the rotary drum from the discharging port under the action of gravity, and when the leather processing time is long, the leather can possibly form a compact block mass; and at the moment, the worker pushes the leather out of the rotary drum by utilizing a material pushing mechanism.

Description

Technical Field

[0001] This utility model relates to the field of leather processing technology, specifically to a drum device for leather processing. Background Technology

[0002] Leather is a raw material used to make leather goods. The quality of the leather is a crucial factor in ensuring the quality of leather products. The leather processing drum is an important piece of equipment used in the tanning process, primarily for wet processing. The drum is typically a wooden cylinder with internal protrusions or lifting plates, driven by gears. Inside the drum, the leather is subjected to mechanical actions such as bending, stretching, pounding, and agitation, thereby accelerating the chemical reaction process and altering the leather's physical properties.

[0003] Existing rotary drums are typically relatively enclosed cylindrical spaces with limited opening size. Workers need to reach inside the drum through a small opening to retrieve leather, resulting in a narrow operating space, restricted range of motion, and difficulty in performing effective material retrieval actions, thus reducing the efficiency of leather processing. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a rotating drum device for leather processing, which has the advantage of facilitating material retrieval. It solves the problem that existing rotating drums have limited opening size, requiring workers to reach into the drum through a small opening to retrieve the leather, resulting in a narrow operating space and difficulty in quickly retrieving materials.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a drum device for leather processing, comprising a main body assembly, wherein the main body assembly includes:

[0008] A base plate, on top of which is a rotating drum, and a drive mechanism is provided on the rotating drum;

[0009] A material handling assembly is provided on the base plate and the drum, the material handling assembly comprising:

[0010] The bracket is hinged to the left end of the base plate;

[0011] The base is fixedly connected to the bottom of the bracket;

[0012] A cavity is formed at the top of the base;

[0013] The lead screw is rotatably connected to the inner wall of the cavity;

[0014] A motor is mounted on the outer wall of the base, and the output shaft of the motor is fixedly connected to one end of the lead screw.

[0015] A threaded block is threadedly connected to the lead screw, and the outer wall of the threaded block is slidably connected to the inside of the cavity;

[0016] The connecting rod is hinged at its bottom end to the top of the threaded block and at its top end to the bottom of the base plate.

[0017] The material pushing mechanism is located on the base plate and the rotating drum.

[0018] Preferably, the pushing mechanism includes:

[0019] The support frame is fixedly connected to the top of the base plate;

[0020] An electric push rod is mounted on the top of the support frame, and the output shaft of the electric push rod passes through and extends into the interior of the drum. The output shaft of the electric push rod is rotatably connected to the drum.

[0021] The push plate is fixedly connected to the output shaft of the electric push rod.

[0022] Preferably, the push plate is provided with an arc-shaped surface.

[0023] Preferably, the outer side wall of the push plate is symmetrically and fixedly connected with guide rods, and the end of the guide rod away from the push plate is slidably connected to the inner side wall of the drum.

[0024] Preferably, a seal is provided at the connection between the electric push rod output shaft and the drum.

[0025] Preferably, a telescopic shell is symmetrically arranged between the cavity and the threaded block.

[0026] (III) Beneficial Effects

[0027] Compared with the prior art, the present invention provides a drum device for leather processing, which has the following advantages:

[0028] This rotary drum device offers the advantage of easy material handling. After leather processing, the operator starts the motor, which drives the lead screw to rotate. The threaded block connected to the lead screw moves the bottom of the connecting rod closer to the support. As the connecting rod moves, its angle changes, lifting the bottom plate upwards. This causes the bottom plate to rotate along the support, changing the tilt angle of the drum. Due to gravity, the leather automatically slides towards the outlet and exits the drum. The operator simply collects the leather below the outlet. When leather processing takes a long time, it may form tight clumps, making it difficult to pour out using gravity. In this case, the operator uses a pushing mechanism to push the leather out of the drum. This solves the problem of existing rotary drums having limited opening size, requiring operators to reach into the drum through a small opening to retrieve the leather, resulting in a narrow operating space and hindering rapid material handling. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the structure of this utility model;

[0030] Figure 2 This is a schematic diagram of the tilting structure of the drum in this utility model;

[0031] Figure 3 This is a front view cross-sectional structural diagram of the rotating drum in this utility model;

[0032] Figure 4 This is a front view cross-sectional structural diagram of the base in this utility model.

[0033] In the picture:

[0034] 1. Main body components; 11. Base plate; 12. Rotating drum;

[0035] 2. Material handling assembly; 21. Bracket; 22. Base; 23. Cavity; 24. Lead screw; 241. Motor; 25. Threaded block; 26. Connecting rod; 27. Pushing mechanism; 271. Support frame; 272. Electric push rod; 273. Push plate; 274. Guide rod; 275. Seal;

[0036] 3. Telescopic shell. Detailed Implementation

[0037] 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.

[0038] Example 1

[0039] See Figure 1-4A drum device for leather processing includes a main assembly 1, which includes: a base plate 11 with a drum 12 mounted on its top, and a drive mechanism mounted on the drum 12; a material-picking assembly 2 mounted on the base plate 11 and the drum 12, the material-picking assembly 2 including: a bracket 21 hinged to the left end of the base plate 11; a base 22 fixedly connected to the bottom of the bracket 21; a cavity 23 formed at the top of the base 22; a lead screw 24 rotatably connected to the inner wall of the cavity 23; a motor 241 mounted on the outer wall of the base 22, the output shaft of the motor 241 being fixedly connected to one end of the lead screw 24; a threaded block 25 threadedly connected to the lead screw 24, the outer wall of the threaded block 25 being slidably connected to the inside of the cavity 23; a connecting rod 26 with its bottom end hinged to the top of the threaded block 25 and its top end hinged to the bottom of the base plate 11; and a material-pushing mechanism 27 mounted on the base plate 11 and the drum 12. The feeding mechanism 27 includes: a support frame 271, fixedly connected to the top of the base plate 11; an electric push rod 272, disposed on the top of the support frame 271, the output shaft of the electric push rod 272 passing through and extending into the interior of the drum 12, and the output shaft of the electric push rod 272 being rotatably connected to the drum 12; and a push plate 273, fixedly connected to the output shaft of the electric push rod 272. The push plate 273 has an arc-shaped surface.

[0040] During operation, workers feed leather into the drum 12 through the inlet, and the drive mechanism rotates the drum 12, subjecting the leather inside to continuous bending, stretching, pounding, and stirring, accelerating the chemical reaction process and altering the leather's physical properties. After processing, workers start the motor 241, which drives the lead screw 24 to rotate. The threaded block 25 connected to the lead screw 24 causes the bottom end of the connecting rod 26 to move closer to the support 21. As the connecting rod 26 moves, its angle changes, lifting the bottom plate 11 upwards, causing it to rotate along the support 21. This changes the tilt angle of the drum 12. Due to gravity, the leather automatically slides towards the outlet and exits the drum 12. Workers simply collect the leather below the outlet. When leather processing takes a long time, the leather may form tight clumps, making it difficult to unload using gravity. In this case, the worker uses a pushing mechanism 27 to push the leather out of the drum 12: the worker activates the electric push rod 272, the output shaft of the electric push rod 272 extends, causing the push plate 273 to push the leather inside the drum 12 towards the discharge port, thus facilitating the worker to easily remove the leather from the drum 12. The push plate 273 with its curved surface prevents sharp edges from damaging the leather surface when pushing it, thereby avoiding affecting the quality of the processed leather.

[0041] The drive mechanism used in the aforementioned drum 12 is powered by a drive motor. The drive motor's shaft is connected to a gear shaft via a coupling, and the rotation of the drive motor drives the gear to rotate. Gears meshing with the drum are mounted on the outer wall of the drum 12. Through the meshing transmission between the gears, the driving power is transmitted to the drum, causing it to rotate around its axis. As long as the rotation of the drum 12 is achieved, the specific structure will not be described in detail here. The aforementioned drive mechanism of the drum 12, motor 241, and electric push rod 272 are all controlled by a PLC controller, which is not shown in the attached diagram.

[0042] Example 2

[0043] An auxiliary function has been added based on Embodiment 1.

[0044] See Figure 1-4 The outer wall of the push plate 273 is symmetrically and fixedly connected with guide rods 274, and one end of the guide rod 274 away from the push plate 273 is slidably connected to the inner wall of the drum 12. A seal 275 is provided at the connection between the output shaft of the electric push rod 272 and the drum 12. A telescopic shell 3 is symmetrically arranged between the cavity 23 and the threaded block 25.

[0045] When the pusher plate 273 pushes the material, it drives the guide rod 274 to slide on the inner wall of the drum 12. The guide rod 274 is used to improve the stability of the pusher plate 273 during movement, thereby facilitating the rapid output of leather. When the pusher plate 273 pushes the material, the drum 12 is in the closed state. The PLC controller limits the angle of the drum 12 when it is closed to prevent the drum studs inside the drum 12 from affecting the normal movement of the guide rod 274. When the drum 12 rotates to process the leather, the drum 12 rotates outside the output shaft of the electric push rod 272. The telescopic shell 3 at the connection is composed of a moving ring, a stationary ring, a spring, and a sealing ring. The moving ring rotates together with the drum 12, and the stationary ring is fixed on the output shaft of the electric push rod 272. The end faces of the moving ring and the stationary ring fit together to form a sealing surface. The spring provides clamping force to keep the sealing surface in a good sealing state. When the threaded block 25 drives the connecting rod 26 to move, the telescopic shell 3 on the side of the threaded block 25 extends and retracts with the movement of the threaded block 25. When the threaded block 25 moves to the left, the telescopic shell 3 on the left side of the threaded block 25 retracts and the telescopic shell 3 on the right side extends. When the threaded block 25 moves to the right, the telescopic shell 3 on the right side of the threaded block 25 retracts and the telescopic shell 3 on the left side extends. The telescopic shell 3 blocks the top of the cavity 23 to prevent foreign objects or hands from accidentally touching the lead screw 24, thereby improving the safety of the device during use.

[0046] 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 drum device for leather processing, comprising a main body assembly (1), the main body assembly (1) comprising: a bottom plate (11) provided with a drum (12) on the top, and a driving mechanism is arranged on the drum (12); characterized in that: the bottom plate (11) is provided with a material taking assembly (2) on the drum (12), the material taking assembly (2) comprising: a support (21) hinged to the left end of the bottom plate (11); a base (22) fixedly connected to the bottom of the support (21); a cavity (23) opened on the top of the base (22); a lead screw (24) rotationally connected to the inner side wall of the cavity (23); a motor (241) arranged on the outer side wall of the base (22), the output shaft of the motor (241) is fixedly connected to one end of the lead screw (24); a threaded block (25) threadedly connected to the lead screw (24), the outer side wall of the threaded block (25) is slidingly connected to the inside of the cavity (23); a connecting rod (26) hinged to the top of the threaded block (25) at the bottom end and hinged to the bottom of the bottom plate (11) at the top end; a material pushing mechanism (27) arranged on the bottom plate (11) and the drum (12).

2. A drum assembly for leather processing as claimed in claim 1, wherein: The material pushing mechanism (27) comprises: a support frame (271) fixedly connected to the top of the bottom plate (11); an electric push rod (272) arranged on the top of the support frame (271), the output shaft of the electric push rod (272) penetrates and extends into the inside of the drum (12), and the output shaft of the electric push rod (272) is rotationally connected to the drum (12); a push plate (273) fixedly connected to the output shaft of the electric push rod (272).

3. A drum assembly for leather processing as claimed in claim 2, wherein: An arc surface is arranged on the push plate (273).

4. A drum assembly for leather processing as claimed in claim 3, wherein: Symmetrical guide rods (274) are fixedly connected to the outer side wall of the push plate (273), and one end of the guide rod (274) away from the push plate (273) is slidingly connected to the inner side wall of the drum (12).

5. A drum assembly for leather processing as claimed in claim 4, wherein: A sealing element (275) is arranged at the connection between the output shaft of the electric push rod (272) and the drum (12).

6. A drum assembly for leather processing as claimed in claim 5, wherein: A telescopic shell (3) is symmetrically arranged between the cavity (23) and the threaded block (25).

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