Rapid scalding and unhairing device for cattle and sheep skin

Abstract

The utility model discloses a cattle and sheepskin rapid scalding and unhairing device which comprises an outer cylinder body fixed on the ground and a cylinder shell with an open upper end; the inner rotating drum is a drum shell with the upper end open, the inner rotating drum is arranged in the outer cylinder body in a sleeved mode, a plurality of rotating drum through holes are formed in the inner rotating drum, one ends of a plurality of rubber rods are fixed to the inner wall of the inner rotating drum, the center of the bottom end of the inner rotating drum is downwards connected with a transmission shaft, and the transmission shaft downwards stretches out of the outer cylinder body and is in transmission connection with a first motor; the fixed cylinder is coaxial with the inner rotating cylinder and sleeved with the inner rotating cylinder, and the outer wall of the fixed cylinder abuts against the other end of the rubber rod; an actuating part of the up-and-down reciprocating mechanism is connected with the top end of the fixed cylinder, when the actuating part of the up-and-down reciprocating mechanism is located at the highest position, the fixed cylinder is completely located outside the inner rotating cylinder, and compared with a conventional mechanical technology, the two procedures of complete leather scalding and depilation are integrated, and the depilation efficiency is greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of livestock hide processing. More specifically, this utility model relates to a device for rapid scalding and dehairing of cattle and sheep hides. Background Technology

[0002] Cowhide and sheepskin are the most commonly used leather resources. After peeling, they need to be dehaired. In order to ensure the integrity and mechanical properties of the leather, the most common way to dehair cow and sheepskin is to first boil the leather and then use mechanical external force, such as scrapers or rollers, to directly scrape or pull the hair off the leather.

[0003] Currently, commercially available dehairing machines are suitable for dehairing chunks of unpeeled meat. These machines work by continuously agitating the meat chunks with a turntable at the bottom of the drum, causing friction between the meat and rubber blocks on the drum wall to remove hair. However, these devices are ineffective at dehairing already shed hides, and large pieces of hide can easily become entangled inside the machine. Chinese patent CN217791271U proposes a cowhide dehairing device that uses multiple conveyor belts to compress the cowhide and a scraping component to remove hair. This device cannot scald the leather. Although the rotating scraping component can remove the hair on the surface of the leather, it cannot effectively remove the hair in the hair follicles under the skin, resulting in poor hair removal effect. The authorized announcement number CN214229668U discloses a portable hair removal machine with a hair removal roller, which removes hair from the leather by setting a rubber rod on the roller shaft. However, it is still difficult to combine the scalding process with the hair removal process. Therefore, it is necessary to propose a new type of rapid scalding and hair removal device for cow and sheep leather that is easy to operate and can complete the two processes of scalding and hair removal at the same time, thereby improving the hair removal efficiency of leather. Utility Model Content

[0004] One objective of this invention is to provide a device for rapid scalding and hair removal of cow and sheep hides. After placing a fixed cylinder wrapped with hide material into an outer cylinder filled with warm water for a period of time, the rotation of the inner cylinder causes the rubber rods on the inner wall of the inner cylinder to continuously rub against the surface of the hide material, thereby completely removing the hair from the hide material.

[0005] To achieve these objectives and other advantages of this utility model, a rapid scalding and dehairing device for cow and sheep hides is provided, comprising: an outer cylinder body fixed to the ground, the outer cylinder body being an open-top cylindrical shell; an inner rotating cylinder, also an open-top cylindrical shell, the inner rotating cylinder being fitted inside the outer cylinder body, the inner rotating cylinder having several rotating cylinder through holes, several rubber rods having one end fixed to the inner wall of the inner rotating cylinder, a drive shaft being connected downwards to the center of the bottom end of the inner rotating cylinder, the drive shaft extending downwards from the outer cylinder body and being connected to a first motor for transmission; a fixed cylinder coaxial with the inner rotating cylinder and fitted inside the inner rotating cylinder, wherein the outer wall of the fixed cylinder abuts against the other end of the rubber rods; and a reciprocating mechanism, the actuating part of which is connected to the top end of the fixed cylinder, wherein when the actuating part of the reciprocating mechanism is in its highest position, the fixed cylinder is completely outside the inner rotating cylinder.

[0006] Preferably, the reciprocating mechanism includes a vertically arranged lead screw, the end of which is connected to a second motor, and multiple limiting rods are fixed parallel to each other on both sides of the lead screw. A slider is fitted together with the lead screw and the multiple limiting rods. The fixed cylinder is an open cylinder, and a fixed cylinder support frame is connected inside the fixed cylinder. The fixed cylinder support frame extends upward from the fixed cylinder and is connected to the slider.

[0007] Preferably, the outer cylinder body has a water inlet connected to its side wall, and a drain outlet connected downwards at the bottom of the outer cylinder body.

[0008] Preferably, both the outer cylinder and the inner rotating cylinder are cylindrical bodies. The upper end of the outer cylinder extends horizontally outward to form an outer cylinder flange, and the upper end of the inner rotating cylinder extends horizontally outward to form a rotating cylinder flange. The outer cylinder flange matches and supports the rotating cylinder flange.

[0009] Preferably, a plurality of flange rollers are rotatably provided on the side of the rotating drum flange facing the outer cylinder flange, the two ends of the flange rollers are rotatably connected to the rotating drum flange, and the shaft of the flange rollers is in contact with the outer cylinder flange.

[0010] Preferably, the fixing cylinder is a cylindrical body, and the length of the rubber rod is greater than the distance between the outer wall of the fixing cylinder and the inner wall of the inner rotating cylinder.

[0011] Preferably, the outer periphery of the rubber rod is provided with a corrugated section with annular convex and concave stripes.

[0012] Preferably, the upper and lower edges of the fixed cylinder are each fixed with a number of fixing clips around their perimeter.

[0013] This utility model has at least the following beneficial effects:

[0014] First, the rapid scalding and dehairing device for cow and sheep hides provided by this utility model integrates the two processes of scalding and dehairing of the whole hide by setting an outer cylinder, an inner rotating cylinder and a fixed cylinder, and the dehairing efficiency is significantly improved compared with conventional mechanical processes.

[0015] Secondly, the rapid scalding and hair removal device for cow and sheep hides provided by this utility model allows the hair removal process to be carried out in water, and the finished hides do not need to be washed again.

[0016] Other advantages, objectives and features of this invention will be partly apparent from the following description, and partly understood by those skilled in the art through study and practice of this invention. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall device in one technical solution of this utility model;

[0018] Figure 2 This is a schematic diagram of the device in use according to one technical solution of this utility model;

[0019] Figure 3 This is a side cross-sectional view of the device in one technical solution of this utility model;

[0020] Figure 4 This is a schematic diagram showing the disassembly of the outer cylinder and inner rotating cylinder in one technical solution of this utility model;

[0021] Figure 5 This is a side view of the fixed cylinder in one of the technical solutions of this utility model, wherein (a) is a view of the fixed cylinder when it is inside the inner rotating cylinder, and (b) is a view of the fixed cylinder when it is removed from the inner rotating cylinder;

[0022] Figure 6 This is a side view of the device in one technical solution of this utility model;

[0023] Figure 7 This is a schematic diagram of the fixing cylinder in one technical solution of this utility model;

[0024] Figure 8 This is a schematic diagram of a rubber rod in one technical solution of this utility model;

[0025] Figure 9 This is a schematic diagram of the disassembly of the fixing clip in one of the technical solutions of this utility model.

[0026] Figure descriptions: 1-Outer cylinder body, 11-Outer cylinder body flange, 12-Cylinder body support frame, 101-Water inlet, 102-Drain outlet, 2-Inner rotating cylinder, 20-Rotating cylinder through hole, 21-Rotating cylinder flange, 22-Flange roller shaft, 23-Drive shaft, 3-Fixed cylinder, 31-Fixed cylinder support frame, 32-Fixed clamp, 321-Fixed plate, 322-Torsion spring, 323-Clamping plate, 4-Up-down reciprocating mechanism, 41-Second motor, 42-Slider, 43-Lead screw, 44-Limit rod, 45-Connecting frame, 5-First motor, 51-Coupling, 6-Rubber rod, 61-Corrugated section, 7-Leather material. Detailed Implementation

[0027] The present invention will now be described in further detail with reference to the accompanying drawings, so that those skilled in the art can implement it based on the description.

[0028] It should be understood that terms such as “having,” “comprising,” and “including” as used herein do not exclude the presence or addition of one or more other elements or combinations thereof.

[0029] It should be noted that, unless otherwise specified, the experimental methods described in the following embodiments are conventional methods, and the components described are commercially available unless otherwise specified. In the description of this utility model, it should be noted that, unless otherwise explicitly stated and limited, the terms "installation," "connection," and "setting" should be interpreted broadly. For example, they can refer to fixed connection or setting, detachable connection or setting, or integral connection or setting. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. The terms "lateral," "longitudinal," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description. They do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0030] like Figure 1-9As shown, the technical solution of this application provides a rapid scalding and dehairing device for cow and sheep hides, comprising: an outer cylinder 1, which is fixed to the ground, the outer cylinder 1 being an open-top cylindrical shell; an inner rotating cylinder 2, which is also an open-top cylindrical shell, the inner rotating cylinder 2 being sleeved inside the outer cylinder 1, the inner rotating cylinder 2 having several rotating cylinder through holes 20, several rubber rods 6 having one end fixed to the inner wall of the inner rotating cylinder 2, a drive shaft 23 being connected downwards to the center of the bottom end of the inner rotating cylinder 2, the drive shaft 23 extending downwards from the outer cylinder 1 and being connected to a first motor 5 for transmission; and a fixed cylinder 3, which is coaxial with the inner rotating cylinder 2 and sleeved inside the inner rotating cylinder 2, wherein the fixed cylinder 3... The outer wall of the cylinder 3 abuts against the other end of the rubber rod 6; the reciprocating mechanism 4 has its actuating part connected to the top of the fixed cylinder 3, wherein when the actuating part of the reciprocating mechanism 4 is in the highest position, the fixed cylinder 3 is completely outside the inner rotating cylinder 2. The outer cylinder 1, the inner rotating cylinder 2, and the fixed cylinder 3 are all made of stainless steel or other materials. The outer cylinder 1 is used to hold warm water that meets the scalding temperature. The outer cylinder 1 is fixed to the ground by the cylinder support frame 12. The rotating cylinder through hole 20 on the inner rotating cylinder 2 is used for the circulation of warm water inside and outside the inner rotating cylinder 2. The body of the first motor 5 is fixed to the outside of the outer cylinder 1. The first motor 5 is connected to the outer cylinder 1 by a coupling 51 or a gear set that provides a transmission effect. The drive shaft 23 is connected to the outer cylinder 1 by a mechanical seal or rubber sealing ring. The rubber rod 6 has good deformation ability and can also be made of other materials with deformation ability. The reciprocating mechanism 4 can be a screw lifting mechanism or a crank reciprocating motion mechanism used with a motor. In this technical solution, the reciprocating mechanism 4 first removes the fixed cylinder 3 from the inner rotating cylinder 2. The operator injects warm water that meets the soaking temperature into the outer cylinder 1 and adds appropriate amounts of medicine and other materials as needed. The leather 7 is tied and wrapped around the outer circumference of the fixed cylinder 3 one by one with the rough side facing out. Then the fixed cylinder 3 is put back into the inner rotating cylinder. In step 2, after soaking and scalding for a certain period of time to relax the hair follicles on the leather 7, the first motor 5 is started to rotate the inner rotating cylinder 2. During the rotation of the inner rotating cylinder 2, the ends of the rubber rods 6 on it continuously rub against the surface of the leather 7, removing the hair from the leather 7. The removed hair falls directly into the water. Optionally, during the rotation of the inner rotating cylinder 2, the reciprocating mechanism 4 can drive the fixed cylinder 3 to move up and down appropriately, increasing the contact range between the leather 7 and the rubber rods 6. This device integrates the two processes of soaking and scalding and hair removal for the whole leather 7 by setting the outer cylinder 1, the inner rotating cylinder 2 and the fixed cylinder 3, and the hair removal efficiency is significantly improved compared with conventional mechanical processes.

[0031] In another technical solution, the reciprocating mechanism 4 includes a vertically arranged lead screw 43, the end of which is connected to a second motor 41. Multiple limiting rods 44 are fixed parallel to each other on both sides of the lead screw 43. A slider 42 is fitted onto the lead screw 43 and the multiple limiting rods 44. The fixed cylinder 3 is an open cylinder, and a fixed cylinder support frame 31 is connected inside the fixed cylinder 3. The fixed cylinder support frame 31 extends upward from the fixed cylinder 3 and connects to the slider 42. In this technical solution, the reciprocating mechanism 4 is fixed to the side of the outer cylinder 1 via the support frame. The slider 42 contains balls that can circulate along the threads of the lead screw 43. When the lead screw 43 rotates under the drive of the second motor 41, the slider 42 can move upward or downward along the lead screw 43, thereby driving the fixed cylinder 3 into or out of the inner rotating cylinder 2.

[0032] In another technical solution, the outer cylinder 1 has a water inlet 101 connected to its side wall, and a drain outlet 102 connected downwards to the bottom of the outer cylinder 1. The water inlet 101 is connected to an external water supply device pipe, and the drain outlet 102 is used to discharge water containing hair.

[0033] In another technical solution, both the outer cylinder 1 and the inner rotating cylinder 2 are cylindrical bodies. The upper end of the outer cylinder 1 extends horizontally outward with a ring of outer cylinder flange 11, and the upper end of the inner rotating cylinder 2 extends horizontally outward with a ring of rotating cylinder flange 21. The outer cylinder flange 11 matches and supports the rotating cylinder flange 21. The weight of the inner rotating cylinder 2 is supported by the outer cylinder flange 11. The transmission shaft 23 only drives the rotation of the inner rotating cylinder 2 and does not bear the downward force on the inner rotating cylinder 2.

[0034] In another technical solution, a plurality of flange rollers 22 are rotatably provided on the side of the rotating drum flange 21 facing the outer cylinder flange 11. The two ends of the flange rollers 22 are rotatably connected to the rotating drum flange 21. The shaft of the flange rollers 22 is in contact with the outer cylinder flange 11. The flange rollers 22 can further reduce the friction between the outer cylinder 1 and the inner rotating drum 2.

[0035] In another technical solution, the fixing cylinder 3 is a cylindrical body, and the length of the rubber rod 6 is greater than the distance between the outer wall of the fixing cylinder 3 and the inner wall of the inner rotating cylinder 2, such as... Figure 5 As shown, when the fixed cylinder 3 is fitted inside the inner rotating cylinder 2, the rubber rod 6 is in a bent state, and its contact area with the leather 7 on the fixed cylinder 3 is larger. As the fixed cylinder 3 moves up and down under the drive of the reciprocating mechanism 4, the rubber rod 6 will also deform accordingly, and the leather 7 will have a better hair removal effect.

[0036] In another technical solution, the outer periphery of the rubber rod 6 is provided with a corrugated section 61 with annular convex and concave stripes, which better removes hair from the leather 7.

[0037] In another technical solution, the upper and lower edges of the fixed cylinder 3 are each fixed with a plurality of fixing clips 32 around its perimeter, such as... Figure 9 As shown, the fixing clip 32 is a clip with a torsion spring structure, used to clamp the leather 7. The fixing clip 32 includes a fixing plate 321 and a clamping plate 323. A part of the fixing plate 321 is connected to the fixing cylinder 3. The middle parts of the fixing plate 321 and the clamping plate 323 are rotatably connected by a pin. The plate of the clamping plate 323 on the side of the pin is in close contact with the outer wall of the fixing cylinder 3. A torsion spring 322 is sleeved on the pin. The extended part of the torsion spring 322 is located between the fixing plate 321 and the clamping plate 323. The operator only needs to press the plate of the clamping plate 323 on the other side of the pin to clamp the leather 7 onto the fixing cylinder 3.

[0038] The number of components and processing scale described herein are for the purpose of simplifying the description of this utility model. Applications, modifications, and variations of this utility model will be readily apparent to those skilled in the art.

[0039] Although the embodiments of this utility model have been disclosed above, they are not limited to the applications listed in the specification and embodiments. They can be applied to various fields suitable for this utility model. For those skilled in the art, other modifications can be easily made. Therefore, without departing from the general concept defined by the claims and their equivalents, this utility model is not limited to the specific details and the illustrations shown and described herein.

Claims

1. A rapid scalding and dehairing device for cow and sheep hides, characterized in that, include: The outer cylinder (1) is fixed to the ground and is a cylindrical shell with an open upper end. The inner rotating cylinder (2) is a cylindrical shell with an open upper end. The inner rotating cylinder (2) is fitted inside the outer cylinder (1). The inner rotating cylinder (2) has several rotating cylinder through holes (20). The inner wall of the inner rotating cylinder (2) is fixed with one end of several rubber rods (6). The bottom center of the inner rotating cylinder (2) is connected to a drive shaft (23). The drive shaft (23) extends downward out of the outer cylinder (1) and is connected to the first motor (5) for transmission. A fixed cylinder (3) is coaxial with the inner rotating cylinder (2) and sleeved inside the inner rotating cylinder (2), wherein the outer wall of the fixed cylinder (3) abuts against the other end of the rubber rod (6); The reciprocating mechanism (4) has its actuating part connected to the top of the fixed cylinder (3). When the actuating part of the reciprocating mechanism (4) is in the highest position, the fixed cylinder (3) is completely outside the inner rotating cylinder (2).

2. The rapid scalding and dehairing device for cow and sheep hides as described in claim 1, characterized in that, The reciprocating mechanism (4) includes a vertically arranged lead screw (43), the end of which is connected to a second motor (41). Multiple limiting rods (44) are fixed parallel to each other on both sides of the lead screw (43). A slider (42) is fitted together with the lead screw (43) and the multiple limiting rods (44). The fixed cylinder (3) is an open cylinder. A fixed cylinder support frame (31) is connected inside the fixed cylinder (3). The fixed cylinder support frame (31) extends upward from the fixed cylinder (3) and is connected to the slider (42).

3. The rapid scalding and dehairing device for cow and sheep hides as described in claim 1, characterized in that, The outer cylinder (1) has a water inlet (101) connected to its side wall, and a drain outlet (102) connected downwards to the bottom of the outer cylinder (1).

4. The rapid scalding and dehairing device for cow and sheep hides as described in claim 1, characterized in that, Both the outer cylinder (1) and the inner rotating cylinder (2) are cylindrical bodies. The upper end of the outer cylinder (1) extends outward horizontally with a ring of outer cylinder flange (11), and the upper end of the inner rotating cylinder (2) extends outward horizontally with a ring of rotating cylinder flange (21). The outer cylinder flange (11) matches and supports the rotating cylinder flange (21).

5. The rapid scalding and dehairing device for cow and sheep hides as described in claim 4, characterized in that, The rotating drum flange (21) is rotatably provided with a plurality of flange rollers (22) on the side facing the outer cylinder flange (11). The two ends of the flange rollers (22) are rotatably connected to the rotating drum flange (21), and the shaft of the flange rollers (22) is in contact with the outer cylinder flange (11).

6. The rapid scalding and dehairing device for cow and sheep hides as described in claim 1, characterized in that, The fixed cylinder (3) is a cylindrical body, and the length of the rubber rod (6) is greater than the distance between the outer wall of the fixed cylinder (3) and the inner wall of the inner rotating cylinder (2).

7. The rapid scalding and dehairing device for cow and sheep hides as described in claim 6, characterized in that, The outer periphery of the rubber rod (6) is provided with a corrugated section (61) with annular convex and concave stripes.

8. The rapid scalding and dehairing device for cow and sheep hides as described in claim 1, characterized in that, The upper and lower edges of the fixed cylinder (3) are each fixed with several fixing clips (32).

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