Leather softening device for leather processing

Abstract

The invention relates to the technical field of leather processing, in particular to a leather softening device for leather processing, which comprises a rotary drum mechanism, a first side plate mechanism and a second side plate mechanism are respectively arranged on two sides of the rotary drum mechanism, and a baffle mechanism and a filter drum mechanism which are uniformly distributed in a surrounding manner are arranged on the inner side of the rotary drum mechanism. Flexible roller mechanisms which are uniformly distributed in a surrounding manner are arranged on the periphery of the filter cartridge mechanism; by arranging the baffle mechanism capable of swinging back and forth, a baffle can be driven to swing back and forth in the rotating process of the rotary drum, so that leather is continuously collided, beaten and rubbed in the V-shaped groove, the mechanical softening effect of the leather is enhanced, the permeation uniformity of a chemical agent is also improved, and the softening efficiency and quality are improved; by arranging the flexible roller mechanism, the rubbing roller rotates while rotating along with the whole rotating drum, the multi-direction and multi-angle rubbing effect on the leather is achieved, particularly, secondary rubbing is conducted in the leather falling process, the fiber structure is further loosened, and the softening uniformity is enhanced.

Description

Technical Field

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

[0002] Leather softening devices, especially leather softening drum machines, are key general-purpose equipment in the wet processing stage of the leather industry. These devices are mainly used for processes such as soaking, tanning, dyeing, and softening of leather. Their core function is to promote the penetration and uniform action of chemical materials into the leather through mechanical action, and to loosen the leather fiber structure through physical beating, thereby achieving the purpose of softening. Traditional leather softening drum machines typically include a horizontally placed cylindrical drum, a power system that drives the drum to rotate around its axis, and several fixed lifting baffles located on the inner wall of the drum. During operation, the leather to be treated, along with an appropriate amount of processing liquid, is loaded into the drum. Driven by the motor, the drum rotates at a constant speed. The internal lifting baffles lift the leather to a certain height as the drum rotates. Subsequently, the leather falls off the baffles under its own gravity, generating a continuous beating effect. During this process, the leather comes into full contact and mixes with each other, with the drum wall, and with the processing liquid, thus achieving a combination of chemical and mechanical action and completing the uniform softening of the leather.

[0003] The inventors have discovered at least the following problems in the prior art: The existing traditional leather softening drum machine has a fixed lifting baffle structure, which can only rely on the rotation of the drum to bring the leather to a certain height and then let it fall freely. This single tumbling method results in insufficient interaction between the leather and chemical materials. Especially for leather with uneven thickness or dense fiber structure, it is difficult to achieve deep and uniform softening, and problems such as local hardening or insufficient softening are likely to occur. Existing devices rely solely on the collision between leather pieces and the friction with the drum wall to achieve mechanical action, lacking continuous, multi-directional kneading force on the leather surface. Therefore, when processing certain leathers that require strong mechanical softening, traditional drums are unable to effectively loosen the fiber structure, resulting in low softening efficiency and easy damage or deformation of the leather surface due to uneven beating.

[0004] Therefore, this solution provides a leather softening device for leather processing to solve the above-mentioned problems. Summary of the Invention

[0005] To address the problems of uneven softening and low efficiency caused by the single method of slapping with a fixed baffle and the lack of continuous kneading in existing technologies, this invention provides a leather softening device for leather processing to solve the above-mentioned problems.

[0006] To achieve the above objectives, the present invention provides the following technical solution: A leather softening device for leather processing includes a drum mechanism. Side plate mechanism one and side plate mechanism two are respectively arranged on both sides of the drum mechanism. A baffle mechanism and a filter cartridge mechanism are uniformly distributed around the inner side of the drum mechanism, and a soft roller mechanism is uniformly distributed around the periphery of the filter cartridge mechanism. The drum mechanism includes a drum cylinder and symmetrically arranged mounting plates uniformly distributed around the inside of the drum cylinder. The mounting plates are fixedly connected to the drum cylinder, and support bases are arranged on both sides of the drum cylinder. The baffle mechanism includes a baffle located between the two mounting plates and an external toothed ring one located outside both ends of the drum cylinder. The side plate mechanism one includes a side drum plate one fixedly connected to the drum cylinder and a linked external toothed ring on one side of the side drum plate one. The side plate mechanism two includes a side drum plate two fixedly connected to the other end of the drum cylinder and a discharge pipe.

[0007] Preferably, the drum and the mounting plate are both provided with transmission grooves, the mounting plate is provided with limit grooves on the inner side, a guide ring is fixedly connected to the outer periphery of the drum, a door is snapped into one side of the drum, and the guide ring cooperates with the support base.

[0008] Preferably, a rotating shaft is fixedly connected to one side of both ends of the baffle, and a connecting rod is rotatably connected to the other side of both ends of the rotating shaft. The rotating shaft is rotatably connected to the mounting plate.

[0009] Preferably, the outer periphery of both ends of the drum is fixedly connected with uniformly distributed bearing seats, and the two sides of the eccentric disk are respectively rotatably connected to the eccentric disk and the first gear. One side of the first gear is rotatably connected to one end of the connecting rod.

[0010] Preferably, the connecting rod is located inside the transmission groove, the connecting rod rotatably connects the baffle through the limiting groove, and the gear is meshed with the outer periphery of the external gear ring.

[0011] Preferably, the filter cartridge mechanism includes a filter cartridge and side mounting rings fixedly connected to both ends of the filter cartridge. The side mounting rings are fixedly connected to the inner sides of side rotating drum plate one and side rotating drum plate two. A spiral blade is fixedly connected to the inner side of the filter cartridge.

[0012] Preferably, the soft roller mechanism includes a kneading roller, with uniformly distributed gears fixedly connected to the periphery of the kneading roller, and protrusions fixedly connected to both ends of the kneading roller. The protrusions are meshed with the periphery of the linkage outer gear ring, and the protrusions penetrate the side mounting ring, the side rotating drum plate one, and the side rotating drum plate two, and are rotatably connected.

[0013] Preferably, a central shaft is fixedly connected to the center of the side-rotating drum plate, and a drive gear is fixedly connected to the periphery of the central shaft. An annular groove is opened on the inner side of the drive gear, and the linkage external gear ring is fixedly connected inside the annular groove.

[0014] Preferably, the second side-rotating drum plate is provided with a docking groove, which connects the discharge pipe and the interior of the filter cylinder. One side of the discharge pipe is hinged to an opening and closing door, and the outer periphery of the discharge pipe is fixedly connected to a second drive gear.

[0015] Preferably, bracket one and bracket two are respectively installed above the support base. A drive mechanism is installed on the inner side of both bracket one and bracket two. The output end of the drive mechanism is connected to drive gear one and drive gear two. External gear ring one is fixedly connected to the inner side of the support base and rotatably connected to both ends of the drum. Compared with the prior art, the beneficial effects of the present invention are: This invention, by setting up a reciprocating oscillating baffle mechanism, can drive the baffle to oscillate back and forth during the rotation of the drum, so that the leather is constantly collided, pounded and rubbed in the V-shaped groove. This not only enhances the mechanical softening effect of the leather, but also improves the uniformity of chemical penetration, thereby improving softening efficiency and quality.

[0016] This invention incorporates a soft roller mechanism, enabling the rubbing roller to rotate independently while rotating with the overall drum. This creates a multi-directional and multi-angle rubbing effect on the leather, especially during the leather's descent, where a secondary rubbing is performed to further loosen the fiber structure, enhance softening uniformity, and avoid the problem of uneven localized force on the leather in traditional devices.

[0017] This invention, by setting up a filter cartridge mechanism with a spiral blade structure, can filter and transport particulate matter and flocculent impurities in the softening material in real time during the softening process, keeping the material clean, reducing leather contamination, and facilitating centralized collection and cleaning, thereby improving the continuous operation capability and maintenance convenience of the equipment. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the overall disassembled structure of the present invention; Figure 3 This is a schematic diagram of the internal structure of the drum mechanism of the present invention; Figure 4 This is a partial structural schematic diagram of the baffle mechanism of the present invention; Figure 5 This is a schematic diagram of the internal structure of the flexible roller mechanism of the present invention; Figure 6 This is a schematic diagram of the internal structure of the filter cartridge mechanism of the present invention; Figure 7 This is a schematic diagram of the internal structure of the side plate mechanism of the present invention; Figure 8 This is a schematic diagram of the internal structure of the second side plate mechanism of the present invention.

[0019] In the picture: 1. Drum mechanism; 11. Drum cylinder; 12. Guide ring; 13. Door body; 14. Mounting plate; 15. Transmission groove; 16. Limiting groove; 2. Baffle mechanism; 21. Baffle; 22. Rotating shaft; 23. Connecting rod; 24. Eccentric disc; 25. Shaft seat; 26. Gear 1; 27. External gear ring 1; 3. Filter cartridge mechanism; 31. Filter cartridge; 32. Spiral blade; 33. Side mounting ring; 4. Soft roller mechanism; 41. Kneading roller; 42. Protrusion; 43. Gear II; 5. Side plate mechanism 1; 51. Side rotating drum plate 1; 52. Central shaft; 53. Drive gear 1; 54. Annular groove; 55. Linkage external gear ring; 6. Side plate mechanism two; 61. Side rotating drum plate two; 62. Connecting groove; 63. Drive gear two; 64. Discharge pipe; 65. Opening and closing door; 7. Support base; 8. Bracket 1; 9. Bracket 2; 10. Drive mechanism. Detailed Implementation

[0020] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0021] Example: Please refer to Figure 1-8 The leather softening device for leather processing shown includes a drum mechanism 1, with a side plate mechanism 5 and a side plate mechanism 6 respectively arranged on both sides of the drum mechanism 1, a baffle mechanism 2 and a filter cylinder mechanism 3 evenly distributed around the inner side of the drum mechanism 1, and a soft roller mechanism 4 evenly distributed around the outer side of the filter cylinder mechanism 3. The drum mechanism 1 includes a drum cylinder 11 and mounting plates 14 that are evenly distributed and symmetrical inside the drum cylinder 11. The mounting plates 14 are fixedly connected to the drum cylinder 11, and support bases 7 are provided on both sides of the drum cylinder 11. The baffle mechanism 2 includes a baffle 21 located between two mounting plates 14 and an external toothed ring 27 located at both ends of the drum cylinder 11; Side plate mechanism 5 includes a side rotating drum plate 51 fixedly connected to the rotating drum cylinder 11 and a linkage external gear ring 55 on one side of the side rotating drum plate 51; The side plate mechanism 26 includes a side drum plate 261 and a discharge pipe 64, which are fixedly connected to the other end of the drum cylinder 11; The drum mechanism 1 is equipped with an external controller to control the operation of the entire equipment; the mesh of the filter cartridge 31 has one row of large holes and another row of small holes, which are not all the same, so that particles in the chemical material can enter and exit.

[0022] In this embodiment, both the drum 11 and the mounting plate 14 have transmission grooves 15 inside, the mounting plate 14 has a limit groove 16 inside, the drum 11 is fixedly connected to the periphery of the drum 11, the drum 11 is snapped with a door body 13 on one side, and the guide ring 12 cooperates with the support base 7. Among them, the drum cylinder 11 is the drum of the drum machine in the prior art, the door 13 is used to close and take out and put in leather and pour in chemicals; the support base 7 is provided with rollers at the guide ring 12 to ensure the stability of the drum cylinder 11 when rotating.

[0023] In this embodiment, a rotating shaft 22 is fixedly connected to one side of both ends of the baffle 21, and a connecting rod 23 is rotatably connected to the other side of both ends of the rotating shaft 22. The rotating shaft 22 is rotatably connected to the mounting plate 14. The baffle 21, the inner wall of the drum 11, and the mounting plate 14 form a V-shaped groove, which is used to hold chemicals and a certain amount of leather.

[0024] In this embodiment, the outer periphery of both ends of the drum 11 is fixedly connected with uniformly distributed bearing seats 25, and the two sides of the eccentric disk 24 are respectively rotatably connected to the eccentric disk 24 and the gear 26. One side of the gear 26 is rotatably connected to one end of the connecting rod 23. The upper end of the connecting rod 23 is rotatably connected to the eccentric part of the gear 26. Therefore, when the eccentric disk 24 and the gear 26 rotate at high speed, the connecting rod 23 will cause one end of the baffle 21 to move up and down repeatedly, that is, to make the baffle 21 swing back and forth. This allows the leather to repeatedly collide, slam and rub against each other in the V-shaped groove.

[0025] In this embodiment, the connecting rod 23 is located inside the transmission groove 15, and the connecting rod 23 is rotatably connected to the baffle 21 passing through the limiting groove 16. The gear 26 is meshed with the outer tooth ring 27. The transmission groove 15 has a corrugated waterproof seal at its edge. The outer periphery of the seal is connected to the inner wall of the transmission groove 15, while the inner and outer fixed connections are to the outer periphery of the connecting rod 23, which is not shown in the figure.

[0026] In this embodiment, the filter cartridge mechanism 3 includes a filter cartridge 31 and a side mounting ring 33 fixedly connected to both ends of the filter cartridge 31. The side mounting ring 33 is fixedly connected to the inner side of the side rotating drum plate 51 and the side rotating drum plate 61. A spiral blade 32 is fixedly connected to the inner side of the filter cartridge 31. Among them, the filter cartridge 31, the spiral blade 32 and the side mounting ring 33 can all rotate together with the drum 11, and during the rotation, the particles filtered from the inside can be transported to the outside.

[0027] In this embodiment, the soft roller mechanism 4 includes a kneading roller 41. The outer periphery of the kneading roller 41 is fixedly connected with evenly distributed gears 43. Both ends of the kneading roller 41 are fixedly connected with protrusions 42. The protrusions 42 are meshed with the outer periphery of the linkage outer gear ring 55. The protrusions 42 pass through the side mounting ring 33, the side rotating drum 51, and the side rotating drum 61, and are rotatably connected. The multiple soft roller mechanism 4 can rotate clockwise with the drum 11, but each rubbing roller 41 rotates counterclockwise, so that the lower part of the multiple rubbing rollers 41 rubs the leather, while the upper part rubs the fallen leather a second time.

[0028] In this embodiment, a central shaft 52 is fixedly connected to the center of the side-rotating drum plate 51, and a drive gear 53 is fixedly connected to the periphery of the central shaft 52. An annular groove 54 is provided on the inner side of the drive gear 53, and a linkage external gear ring 55 is fixedly connected inside the annular groove 54. There is a gap between the side-rotating drum plate 51 and the drive gear 53; the annular groove 54 is used to facilitate the meshing of the linkage external gear ring 55 and the protrusion 42.

[0029] In this embodiment, the second side-rotating drum plate 61 is provided with a docking groove 62, which connects the discharge pipe 64 and the interior of the filter cylinder 31. One side of the discharge pipe 64 is hinged to an opening and closing door 65, and the outer periphery of the discharge pipe 64 is fixedly connected to a second drive gear 63. Among them, the outer periphery of the discharge pipe 64 is also fixedly connected with a linkage external gear ring 55, which is located between the drive gear 2 63 and the side rotating drum 2 61, so that it can mesh with the protrusion 42 for transmission; after the opening and closing door 65 is opened, it can clean up the particles during the softening process.

[0030] In this embodiment, bracket 8 and bracket 9 are respectively installed on the upper part of the support base 7. A drive mechanism 10 is installed on the inner side of both bracket 8 and bracket 9. The output end of the drive mechanism 10 is connected to drive gear 53 and drive gear 63. The external gear ring 27 is fixedly connected to the inner side of the support base 7 and is rotatably connected to both ends of the drum 11. Among them, the external gear ring 27 is connected to the support base 7 through the frame. When the drum 11 rotates, the external gear ring 27 does not move. Note that the frame is not shown for the sake of convenience. The frame is located between the side drum plate 51 and the drive gear 53. There is a bearing seat above the bracket 8, which can support the central shaft 52. There are rollers above the bracket 9 to support the periphery of the discharge pipe 64.

[0031] The working principle of this invention is as follows: When it is necessary to soften the leather, it can be placed inside the drum 11 and then injected with a chemical solution. After that, the door 13 is closed and the drive mechanism 10 is started. At this time, the output end of the drive mechanism 10 will drive the drive gear 53 and the drive gear 63 to rotate synchronously. This will cause the side drum plate 51 and the side drum plate 61 to drive the drum 11 to rotate synchronously. At this time, multiple pieces of leather inside will be lifted by the baffle 21 and softened in conjunction with the chemical solution. During the rotation of the aforementioned drum cylinder 11, side drum plate 51, side drum plate 61, drive gear 53 and drive gear 63, the annular groove 54 and the filter cartridge mechanism 3 will also be driven to rotate coaxially. Since the external gear ring 27 is fixed to the inner side of the two support bases 7 by the frame and rotates on the outer periphery of both ends of the drum 11, and the eccentric disk 24 rotates when the drum 11 rotates, the gear 26 on one side of the eccentric disk 24 is forced to mesh with the external gear ring 27 and will rotate at high speed. The rotation of the gear 26 will drive the eccentric disk 24 to rotate, which will cause the connecting rod 23 to rotate and connect to the baffle 21 to move up and down. This will allow the baffle 21 to swing back and forth around the rotating shaft 22. Since there is leather in the V-shaped groove between the baffle 21 and the inner wall of the drum 11, the leather will continuously collide between the drum 11 and the baffle 21 when the baffle 21 swings continuously. Moreover, when the baffle 21 rotates to the high point of the drum 11, the swing of the baffle 21 can also throw the leather out, which will then collide with the inner wall of the drum 11 and fall downwards, thereby improving the softening efficiency. Since the rubbing roller 41 is connected to the outer periphery of the filter cylinder 31 and the protrusions 42 at both ends of the rubbing roller 41 pass through the side mounting ring 33, the first side rotating drum plate 51 and the second side rotating drum plate 61 and engage with the annular groove 54, when the rotating drum cylinder 11 and the filter cylinder mechanism 3 rotate clockwise, although the multiple rubbing rollers 41 as a whole also rotate clockwise, each rubbing roller 41 rotates counterclockwise at high speed. This allows the leather at the bottom of the rotating drum cylinder 11 that is not driven by the baffle 21 to be rubbed by the rubbing roller 41. After the leather driven by the baffle 21 is thrown out and falls, some of the leather will come into contact with the rubbing roller 41 above and be rubbed again. Furthermore, while the baffle 21 holds multiple leathers, the presence of the mounting plates 14 at both ends causes some of the chemical material to be dispensed. As the chemical material falls, it passes between multiple kneading rollers 41 and then through the filter cylinder 31. This allows the flocculent particles generated during the softening process to be concentrated inside the filter cylinder 31. With the rotation of the filter cylinder 31, the spiral blade 32, and the side mounting ring 33, the particles move towards the discharge pipe 64, thereby filtering and collecting the particles in the chemical material.

[0032] The drum mechanism 1, the support base 7, and the drive mechanism 10 used in this invention are all existing known electrical devices, and all can be purchased and used directly on the market. Their structure, circuit, and control principle are all existing known technologies. Therefore, the structure, circuit, and control principle of the drum mechanism 1, the support base 7, and the drive mechanism 10 will not be described in detail here.

[0033] All standard parts used in this application can be purchased from the market. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art and are also general components, which are common knowledge in this field.

[0034] Although embodiments of the 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 invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A leather softening device for leather processing, comprising a drum mechanism (1), characterized in that: Both sides of the drum mechanism (1) are respectively provided with side plate mechanism one (5) and side plate mechanism two (6), the inner side of the drum mechanism (1) is provided with uniformly distributed baffle mechanism (2) and filter cylinder mechanism (3), the periphery of the filter cylinder mechanism (3) is provided with uniformly distributed soft roller mechanism (4); The drum mechanism (1) comprises a drum cylinder (11) and mounting plates (14) which are uniformly distributed and symmetrical inside the drum cylinder (11) and are fixedly connected to the drum cylinder (11), and both sides of the drum cylinder (11) are provided with support bases (7); The baffle mechanism (2) comprises baffles (21) between the two mounting plates (14) and outer gear rings one (27) outside both ends of the drum cylinder (11); The side plate mechanism one (5) comprises a side drum plate one (51) fixedly connected to the drum cylinder (11) and a linkage outer gear ring (55) on one side of the side drum plate one (51); The side plate mechanism two (6) comprises a side drum plate two (61) fixedly connected to the other end of the drum cylinder (11) and a discharge pipe (64).

2. A leather softening device for leather processing according to claim 1, characterized in that: The drum cylinder (11) and the mounting plates (14) are both internally provided with transmission grooves (15), the inner side of the mounting plates (14) is provided with a limiting groove (16), the periphery of the drum cylinder (11) is fixedly connected with a guide ring (12), one side of the drum cylinder (11) is connected with a door body (13), and the guide ring (12) cooperates with the support bases (7).

3. The leather softening device for leather processing according to claim 1, characterized in that: One side of both ends of the baffle (21) is fixedly connected with a rotating shaft (22), the other side of both ends of the rotating shaft (22) is rotatably connected with a connecting rod (23), and the rotating shaft (22) is rotatably connected with the mounting plates (14).

4. The leather softening device for leather processing according to claim 1, characterized in that: The periphery of both ends of the drum cylinder (11) is fixedly connected with uniformly distributed shaft seats (25), both sides of the eccentric disc (24) are rotatably connected with the eccentric disc (24) and a gear one (26), and one side of the gear one (26) is rotatably connected with one end of the connecting rod (23).

5. A leather softening device for use in leather processing according to claim 4, characterized in that: The connecting rod (23) is located inside the transmission groove (15), the connecting rod (23) is rotatably connected with the baffle (21) through the limiting groove (16), and the gear one (26) is meshingly connected to the periphery of the outer gear ring one (27).

6. The leather softening device for leather processing according to claim 1, characterized in that: The filter cylinder mechanism (3) comprises filter cylinders (31) and side mounting rings (33) fixedly connected to both ends of the filter cylinders (31), the side mounting rings (33) are fixedly connected to the inner sides of the side drum plate one (51) and the side drum plate two (61), and the inner side of the filter cylinder (31) is fixedly connected with helical blades (32).

7. The leather softening device for leather processing according to claim 1, characterized in that: The soft roller mechanism (4) comprises kneading rollers (41), the periphery of the kneading rollers (41) is fixedly connected with uniformly distributed gear twos (43), both ends of the kneading rollers (41) are fixedly connected with protruding portions (42), the protruding portions (42) are meshingly connected to the periphery of the linkage outer gear ring (55), the protruding portions (42) penetrate through the side mounting rings (33), the side drum plate one (51) and the side drum plate two (61) and are rotatably connected.

8. The leather softening device for leather processing according to claim 1, characterized in that: The center shaft (52) is fixedly connected with the center of the side drum plate one (51), the outer periphery of the center shaft (52) is fixedly connected with the driving gear one (53), the inner side of the driving gear one (53) is provided with an annular groove (54), and the linkage outer gear ring (55) is fixedly connected in the annular groove (54).

9. The leather softening device for leather processing according to claim 1, characterized in that: The side drum plate two (61) is provided with a butt joint groove (62), the butt joint groove (62) is communicated with the inside of the filter cylinder (31) and the discharge pipe (64), the one side of the discharge pipe (64) is hingedly connected with the opening and closing door (65), and the outer periphery of the discharge pipe (64) is fixedly connected with the driving gear two (63).

10. The leather softening device for leather processing according to claim 1, characterized in that: The upper portion of the support base (7) is respectively provided with the support one (8) and the support two (9), the inner side of the support one (8) and the support two (9) is respectively provided with the driving mechanism (10), the output end of the driving mechanism (10) is connected with the driving gear one (53) and the driving gear two (63), the outer gear ring one (27) is fixedly connected with the inner side of the support base (7), and the outer gear ring one (27) is rotatably connected with the both ends of the drum cylinder (11).

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