A drum for tanning leather

Abstract

The utility model discloses a kind of drums for leather tanning, including rack and barrel drum body, the inner portion of barrel drum body is separately provided with first baffle, second baffle and third baffle, first baffle and second baffle between being provided with first separator, second baffle and third baffle between being provided with second separator, and first baffle and second baffle are inclined helical arrangement, third baffle is perpendicular to the axis distribution of barrel drum body, and the inside of third baffle is provided with several material distributing frames, the inside of material distributing frame is provided with broken piece, the clearance between material distributing frame is provided with the segmentation piece of staggered distribution. The drum for leather tanning effectively improves the contact uniformity of leather and tanning agent, improves the consistency of tanning effect, simultaneously reduces the possibility of leather winding, and further improves production efficiency and product quality.

Description

Technical Field

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

[0002] In leather manufacturing, tanning is a crucial step in transforming raw hides into a stable, durable material. This process typically involves the use of a drum, where mechanical action and chemical reagents help to evenly penetrate the leather with tanning agents, thereby altering its physical and chemical properties, making it softer, more durable, and less prone to decay. Traditionally, this drum is a large cylindrical device that rotates around its axis to ensure full contact and reaction between the leather and the tanning agents.

[0003] In practical applications, existing leather tanning drums suffer from inadequate internal structural design, resulting in uneven contact between the leather and tanning agents during the tanning process. This can easily lead to over- or under-tanning in certain areas, affecting the consistency of leather quality, reducing production efficiency, and increasing the workload and cost of subsequent processing. Furthermore, the lack of effective fixing and turning devices inside traditional drums can cause the leather to become tangled during tanning, further impacting the tanning effect. Utility Model Content

[0004] The purpose of this invention is to provide a drum for leather tanning, in order to solve the problems mentioned in the background art, such as uneven contact between leather and tanning agents, poor consistency of tanning effect, and low production efficiency caused by unreasonable internal structure design of the drum in the current leather tanning process.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a drum for leather tanning, comprising a frame and a barrel-shaped drum body. The interior of the barrel-shaped drum body is provided with a first baffle, a second baffle, and a third baffle. A first separator is provided between the first baffle and the second baffle, and a second separator is provided between the second baffle and the third baffle. The first baffle and the second baffle are arranged in an inclined spiral shape, while the third baffle is distributed perpendicular to the axis of the barrel-shaped drum body. A plurality of material distribution frames are arranged around the interior of the third baffle. The material distribution frames are provided with crushing pieces inside, and the gaps between the material distribution frames are provided with staggered dividing pieces.

[0006] Preferably, the inner rear wall of the barrel-shaped drum is provided with a central column, and the center of the third baffle is provided with a retainer that cooperates with the central column structure.

[0007] Preferably, both the first and second separators are arc-shaped structures, with their curvature matching the inner wall of the barrel-shaped drum, and the thickness of the first separator is greater than the thickness of the second separator.

[0008] Preferably, the edges of the first baffle and the second baffle are provided with serrated protrusions, and the serrated protrusions are evenly distributed along the length direction of the first baffle and the second baffle.

[0009] Preferably, the inner wall of the barrel-shaped drum is provided with a plurality of hemispherical protrusions, and the hemispherical protrusions are evenly distributed in the gap between the first baffle, the second baffle and the third baffle, and the height of the hemispherical protrusions is 5mm to 10mm and the diameter is 8mm to 15mm.

[0010] Preferably, the surfaces of the first and second separators are provided with a plurality of longitudinally arranged guide grooves, and the depth of the guide grooves is 3mm to 7mm and the width is 2mm to 5mm.

[0011] Compared with existing technologies, the beneficial effects of this invention are as follows: the leather tanning drum effectively improves the uniformity of contact between the leather and the tanning agent, enhances the consistency of the tanning effect, and reduces the possibility of leather entanglement, thereby improving production efficiency and product quality. The leather tanning drum optimizes the flow path of materials within the barrel-shaped drum through the inclined spiral arrangement of the first and second baffles, as well as the arc-shaped structure and thickness difference of the first separator, ensuring uniformity and efficiency during processing. Furthermore, the special arrangement of the third baffle and its internal material distribution frame, crushing plates, and dividing plates further enhances the crushing and dispersing effect on the materials, resulting in more thorough leather tanning and overall improved tanning quality and efficiency. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of a drum structure for leather tanning according to the present invention;

[0013] Figure 2 This is a schematic diagram of the internal structure of the third baffle of a drum for leather tanning according to the present invention;

[0014] Figure 3 This is a side view of the first partition of a drum for leather tanning according to the present invention.

[0015] In the diagram: 1. Frame; 2. Barrel-shaped drum; 3. First baffle; 4. First separator; 5. Second baffle; 6. Second separator; 7. Third baffle; 8. Hemispherical protrusion; 9. Serrated protrusion; 10. Central column; 11. Sleeve; 12. Material distribution frame; 13. Crushing disc; 14. Dividing disc; 15. Guide channel. Detailed Implementation

[0016] 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.

[0017] Please see Figure 1-3This utility model provides a technical solution: a drum for leather tanning, including a frame 1 and a barrel-shaped drum body 2. A drive mechanism for rotating the barrel-shaped drum body is provided on one side of the frame 1. The interior of the barrel-shaped drum body 2 is provided with a first baffle 3, a second baffle 5, and a third baffle 7. A first separator 4 is provided between the first baffle 3 and the second baffle 5, and a second separator 6 is provided between the second baffle 5 and the third baffle 7. The first baffle 3 and the second baffle 5 are arranged in an inclined spiral shape with a spiral angle of 30 to 60 degrees. The third baffle 7 has a ring structure and is distributed perpendicular to the axis of the barrel-shaped drum body 2. Several material distribution frames 12 are arranged around the interior of the third baffle 7, and the interior of each material distribution frame 12 contains crushing pieces. 13. The gaps between the material distribution frames 12 are provided with staggered dividing plates 14. This structure of the frame 1 supports the stable operation of the entire device. During the rotation of the barrel-shaped drum 2 driven by the drive mechanism, the first baffle 3 and the second baffle 5 can guide the material to move along a predetermined trajectory, promoting the material to enter the interior of the third baffle 7 and effectively contact the crushing plates 13 and dividing plates 14, achieving thorough kneading and dividing of the leather. At the same time, the first separator 4 and the second separator 6 can further optimize the flow path of the material in the barrel-shaped drum 2, ensuring uniformity and efficiency in the processing. The third baffle 7 not only helps to change the material flow direction, but also increases the crushing and dispersing effect of the material through the material distribution frames 12, crushing plates 13 and dividing plates 14 provided inside it. This device achieves a more thorough tanning process, solving the problems of uneven tanning, low efficiency, and poor treatment results in existing technologies. It improves overall production efficiency and product quality. A central column 10 is welded and fixed to the inner rear wall of the barrel-shaped drum 2. A retaining sleeve 11, which mates with the central column 10, is located at the center of the third baffle 7. The retaining sleeve 11 is fitted onto the outside of the central column 10 and fixed with screws. This structure ensures the stable installation of the third baffle 7 through the tight connection between the central column 10 and the retaining sleeve 11. This allows the third baffle 7 to maintain its vertical distribution during the rotation of the barrel-shaped drum 2, effectively preventing displacement or loosening of the third baffle 7 due to vibration or long-term use. Furthermore, the strong bond between the central column 10 and the retaining sleeve 11... The connection method simplifies the maintenance and disassembly process, improving the operability and maintenance efficiency of the equipment. Both the first separator 4 and the second separator 6 are arc-shaped structures, their curvature matching the inner wall of the barrel-shaped drum 2. Furthermore, the thickness of the first separator 4 is greater than the thickness of the second separator 6. This structure allows the first separator 4 and the second separator 6 to fit tightly against the inner wall of the barrel-shaped drum 2, ensuring that the material flows smoothly along a predetermined path during rotation, reducing dead zones and the possibility of material accumulation. The first separator 4 has increased strength and durability, making it less prone to deformation when handling larger or heavier materials, while also providing additional guiding support for the material, optimizing the uniformity of material distribution and processing efficiency. The second separator 6 works in conjunction with the first separator 4.To further refine the flow path of the material within the drum and ensure sufficient dispersion and processing even at high speeds, the edges of the first baffle 3 and the second baffle 5 are provided with serrated protrusions 9, which are evenly distributed along the length of the first baffle 3 and the second baffle 5. When the drum body 2 rotates, the serrated protrusions 9 effectively cut and agitate the material, preventing leather and other materials from sticking or tangling together, thus ensuring sufficient mixing and dispersion of the material between the baffles. Furthermore, the serrated protrusions 9 also help break up any material clumps that may form, allowing the leather to be more evenly exposed to the tanning agent, further improving the consistency and quality of the tanning process. The inner wall of the drum body 2 is also provided with multiple hemispherical protrusions 8, and the hemispherical protrusions... The hemispherical protrusions 8 are evenly distributed in the gaps between the first baffle 3, the second baffle 5, and the third baffle 7. The height of each hemispherical protrusion 8 is 5mm to 10mm, and the diameter is 8mm to 15mm. This structure, through the hemispherical protrusions 8, applies additional pressure and friction to the leather passing over its surface, helping to break up any material clumps that may form and better promoting more thorough contact between the leather and the tanning agent. The surfaces of the first separator 4 and the second separator 6 are provided with several longitudinally arranged guide channels 15, with a depth of 3mm to 7mm and a width of 2mm to 5mm. When the barrel-shaped drum 2 rotates, these guide channels 15 can guide the leather and tanning agent to flow in a specific direction, effectively preventing material accumulation and promoting more uniform mixing.

[0018] Working principle: When using this leather tanning drum, the leather to be tanned and the tanning agent are first placed into the barrel-shaped drum 2 through the feed inlet. Then, the drive mechanism on the frame 1 is started, and the barrel-shaped drum 2 begins to rotate. At this time, the first baffle 3 and the second baffle 5 guide the material to move along a predetermined trajectory. The serrated protrusions 9 also cut and agitate the material to prevent it from tangling or sticking. At the same time, the material is further dispersed under the guidance of the first separator 4 and the second separator 6, and the guide channel 15 guides the leather and tanning agent to flow in a specific direction to avoid material accumulation. When the material is guided to the vicinity of the third baffle 7, the third baffle 7 will change the material flow direction, so that the material enters the several material distribution frames 12 arranged around it. Here, the crushing plates 13 and the dividing plates 14 further crush and disperse the material. At the same time, throughout the process, the hemispherical protrusions 8 are evenly distributed in the gaps between the first baffle 3, the second baffle 5 and the third baffle 7, applying additional pressure and friction to promote full contact between the leather and the tanning agent, thereby completing a series of processes.

[0019] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A drum for leather tanning, comprising a frame (1) and a barrel-shaped drum body (2), characterized in that: The barrel-shaped drum (2) is provided with a first baffle (3), a second baffle (5) and a third baffle (7) respectively. A first separator (4) is provided between the first baffle (3) and the second baffle (5), and a second separator (6) is provided between the second baffle (5) and the third baffle (7). The first baffle (3) and the second baffle (5) are arranged in an inclined spiral shape. The third baffle (7) is distributed perpendicular to the axis of the barrel-shaped drum (2). The interior of the third baffle (7) is surrounded by several material distribution frames (12). The interior of the material distribution frames (12) is provided with crushing pieces (13). The gaps between the material distribution frames (12) are provided with staggered dividing pieces (14).

2. The drum for leather tanning according to claim 1, characterized in that: The inner rear wall of the barrel-shaped drum (2) is provided with a central column (10), and the center of the third baffle (7) is provided with a ferrule (11) that cooperates with the structure of the central column (10).

3. The drum for leather tanning according to claim 1, characterized in that: The first partition (4) and the second partition (6) are both arc-shaped structures, and their curvature matches the inner wall of the barrel-shaped drum (2). The thickness of the first partition (4) is greater than the thickness of the second partition (6).

4. The drum for leather tanning according to claim 1, characterized in that: The edges of the first baffle (3) and the second baffle (5) are provided with serrated protrusions (9), and the serrated protrusions (9) are evenly distributed along the length direction of the first baffle (3) and the second baffle (5).

5. The drum for leather tanning according to claim 1, characterized in that: The inner wall of the barrel-shaped drum (2) is provided with a plurality of hemispherical protrusions (8), and the hemispherical protrusions (8) are evenly distributed in the gap between the first baffle (3), the second baffle (5) and the third baffle (7), and the height of the hemispherical protrusions (8) is 5mm to 10mm and the diameter is 8mm to 15mm.

6. The drum for leather tanning according to claim 1, characterized in that: The surfaces of the first separator (4) and the second separator (6) are provided with a plurality of longitudinally arranged guide grooves (15), and the depth of the guide grooves (15) is 3mm to 7mm and the width is 2mm to 5mm.

Images