Leather inspection machine

Abstract

The utility model relates to the field of leather inspection, in particular to a leather inspection machine, which comprises a rotatable opening and closing mechanism, the peripheral surface of the opening and closing mechanism is a hanging surface, and the leather inspection machine is characterized in that the opening and closing mechanism comprises a rotating roller, a plurality of separable tightening frames and first driving sources corresponding to the tightening frames, the tightening frames are connected with the output ends of the first driving sources, and the rotating roller is connected with the rotating roller. The driving source is fixed on the rotating roller, so that the tightening frames move towards the outside of the rotating roller under the action of the driving source, and a space for stretching leather is formed between the tightening frames. According to the leather tensioning device, the leather hung on the plurality of tensioning frames can be fully stretched, so that the problem of low surface utilization rate in the prior art is solved, the step of adjusting the position of the leather is omitted, and the whole inspection efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of leather inspection, and more particularly to a leather inspection machine. Background Technology

[0002] A leather inspection machine, commonly used in the leather industry, is a device used to test the quality, thickness, strength, and other properties of leather.

[0003] The main function of a leather inspection machine is to examine the surface quality of leather by stretching the leather material, such as scars on the leather. These scars are marks left by animals that have suffered injuries or illnesses during their growth, or damage to the leather caused during production.

[0004] These defects typically appear on the surface of leather and may manifest as irregular dents, color differences, or uneven textures. The quality of the leather directly affects the subsequent production process and the quality of the finished product. Therefore, a leather inspection machine is a very important tool in leather processing and production.

[0005] The existing leather inspection machine is built on two arc-shaped frames on the same shaft. There is a space between the ends of the two arc-shaped frames. One arc-shaped frame is fixed on the shaft, and the other arc-shaped frame can rotate in the forward or reverse direction on the shaft. As long as the leather is fixed on the outer arc surface of the two arc-shaped frames at the same time, and the movable arc-shaped frame is driven to rotate, the leather will be stretched taut. At this time, the surface quality of the leather can be observed.

[0006] However, this structure has a problem: the utilization rate of the curved frame surface is relatively poor. Because during the rotation of the movable curved frame, one part of its back side is close to or attached to the curved frame fixed on the shaft, while the other part of its back side is away from the curved frame fixed on the shaft. Therefore, the part that can tighten the leather is only the area of ​​the other part of the back side that is away from the curved frame fixed on the shaft. The opposite area lacks the corresponding tightening means, so the leather cannot be stretched. For the leather that cannot be stretched, its position on the curved frame needs to be readjusted and the leather needs to be stretched again.

[0007] Readjusting the leather takes time, and the large size and low utilization of the equipment result in high costs. Utility Model Content

[0008] To address the aforementioned issues, this invention provides a leather inspection machine that offers higher surface utilization and avoids the need for readjusting the leather's position.

[0009] To achieve the above objectives, the technical solution adopted by this utility model is: a leather inspection machine, comprising a rotatable opening and closing mechanism, the outer peripheral surface of which is a hanging surface, characterized in that the opening and closing mechanism comprises a rotating roller, a plurality of separable tensioning frames, and a first driving source corresponding to the tensioning frames, the tensioning frames being connected to the output end of the first driving source, the driving source being fixed on the rotating roller, such that the tensioning frames move outward from the rotating roller under the action of the driving source, and a space for stretching leather is formed between the tensioning frames.

[0010] The beneficial effects of this utility model are:

[0011] This invention uses a method of feeding the tensioning frame outwards towards the rotating roller as a means of stretching the leather. Under this design, the leather hanging on multiple tensioning frames will be fully stretched, thereby solving the problem of low surface utilization in the prior art. In addition, it also saves the step of adjusting the position of the leather and improves the overall inspection efficiency.

[0012] Specifically, it also includes a second drive source. The tensioning frame is provided in at least two sets, and the two tensioning frames in each set are symmetrical structures. The output end of the second drive source is connected to one of the tensioning frames. Under the action of the second drive source, the two sets of tensioning frames are far apart from each other. This design allows the leather to be stretched in other directions, reducing the occurrence of wrinkles in the leather. In this embodiment, the second drive source provides the power to move the tensioning frame left and right, while the first drive source provides the power to move the tensioning frame back and forth.

[0013] It also includes a sleeve and a mounting bracket. In this embodiment, at least two sleeves and mounting brackets are provided. The sleeve is fitted onto the rotating roller, and the mounting bracket is fixed onto the sleeve. The first driving source is a first cylinder, which is set on the mounting bracket. The sleeve rotates with the rotating roller, thereby driving the first cylinder on the mounting bracket to rotate.

[0014] The mounting bracket is a frame structure that fits onto the sleeve. The frame structure consists of multiple side frames, with at least two side frames located outside the rotating roller. Its advantage is that it can provide mounting positions for multiple first drive sources simultaneously.

[0015] Meanwhile, the frame structure of the mounting bracket also provides an installation position for the guide column. The guide column is set on the side frame, and the inner surface of the tensioning bracket is provided with a guide plate. The guide plate has guide holes that fit into the guide column. Under the action of the guide hole and the guide column, the tensioning bracket can make stable reciprocating motion, providing stable guidance and positioning, and ensuring that the mounting bracket can move accurately or maintain the correct manner during the movement.

[0016] It also features reinforcing plates that connect multiple frames, which enhance the structural strength of the mounting bracket, improve its rigidity and stability, and also serve to distribute pressure.

[0017] In this embodiment, there are eight first cylinders, four tensioning frames, and eight guide columns, with each pair of first cylinders and guide columns corresponding to one tensioning frame.

[0018] The second driving source is a second cylinder, which is mounted on one of the sleeves and its output end is connected to the other sleeve. Under the action of the second cylinder, the entire tensioning frame moves laterally.

[0019] It should be noted that the device also includes a power source for driving the rotating roller. The power source includes a servo motor, a reducer, a chain, and multiple driven gears. The servo motor drives one of the driven gears to rotate through the reducer. Another transmission gear is mounted on the rotating roller. The chain is mounted on the driven gear and meshes with it.

[0020] It should also be noted that it includes a canopy, which contains LED lights that provide a light source, with the LED lights facing the outer periphery of the tensioning frame.

[0021] The outer surface of the tensioning frame has multiple hanging holes for use with hanging tools to hang leather on the tensioning frame. Attached Figure Description

[0022] Figure 1 This is a perspective view of the present invention.

[0023] Figure 2 This is a cross-sectional view of the internal structure of this utility model.

[0024] Figure 3 yes Figure 2 Enlarged diagram of point A.

[0025] Figure 4 This is a diagram showing the connection between the rotating roller and the mounting frame.

[0026] Figure 5 This is an assembly diagram of the power source and the opening / closing mechanism. Detailed Implementation

[0027] A leather inspection machine includes a rotatable opening and closing mechanism. The outer peripheral surface of the opening and closing mechanism is a hanging surface. The opening and closing mechanism includes a rotating roller 2, a plurality of separable tensioning frames 3, and a first drive source corresponding to the tensioning frames 3. The tensioning frames 3 are connected to the output end of the first drive source. The drive source is fixed on the rotating roller 2, so that the tensioning frames 3 move outward from the rotating roller 2 under the action of the drive source, and a space for stretching leather is formed between the tensioning frames 3.

[0028] The beneficial effects of this utility model are:

[0029] This invention uses a method of feeding the tensioning frame 3 outwards towards the rotating roller 2 as a means of stretching the leather. Under this design, the leather hanging on multiple tensioning frames 3 will be fully stretched, thereby solving the problem of low surface utilization in the prior art. In addition, it also saves the step of adjusting the position of the leather and improves the overall inspection efficiency.

[0030] Specifically, it also includes a second drive source. The tensioning frame 3 is provided in at least two sets, and the two tensioning frames 3 in each set are symmetrical structures. The output end of the second drive source is connected to one of the tensioning frames 3. Under the action of the second drive source, the two sets of tensioning frames 3 are far apart from each other. This design allows the leather to be stretched in other directions, reducing the occurrence of wrinkles in the leather. In this embodiment, the second drive source provides the power to move the tensioning frame 3 left and right, while the first drive source provides the power to move the tensioning frame 3 back and forth.

[0031] It also includes a sleeve 4 and a mounting bracket 5. In this embodiment, there are two sleeves 4 and mounting brackets 5. The sleeve 4 is sleeved on the rotating roller 2, and the mounting bracket 5 is fixed on the sleeve 4. The first driving source is a first cylinder 6, which is set on the mounting bracket 5. The sleeve 4 rotates with the rotating roller 2, thereby driving the first cylinder 6 on the mounting bracket 5 to rotate.

[0032] The mounting bracket 5 is a frame structure that is fitted onto the sleeve 4. Its side frames are located outside the rotating roller 2. The advantage of this is that it can provide mounting positions for multiple first drive sources at the same time.

[0033] Meanwhile, the frame structure of the mounting bracket 5 also provides an installation position for the guide post 7. The inner surface of the tensioning bracket 3 is provided with a guide plate 8 that fits on the surface of the guide post 7. The guide plate 8 is provided with a guide hole. Under the action of the guide hole and the guide post 7, the tensioning bracket 3 can make a stable reciprocating motion, providing stable guidance and positioning, and ensuring that the mounting bracket 5 can move accurately or maintain the correct manner during the movement.

[0034] It also features a reinforcing plate 9 that connects multiple frames, which enhances the structural strength of the mounting bracket 5, improves its rigidity and stability, and also serves to distribute pressure.

[0035] In this embodiment, there are eight first cylinders 6, four tensioning frames 3, and eight guide columns 7, with each pair of first cylinders 6 and guide columns 7 corresponding to one tensioning frame 3.

[0036] The second driving source is the second cylinder 10, which is mounted on one of the sleeves 4. The output end of the second cylinder 10 is connected to the other sleeve 4. Under the action of the second cylinder 10, the entire tensioning frame 3 moves laterally.

[0037] It should be noted that the system also includes a power source for driving the rotating roller 2 to rotate. The power source includes a servo motor 11, a reducer 12, a chain 13, and multiple driven gears 14. The servo motor 11 drives one of the driven gears 14 to rotate through the reducer 12. Another transmission gear 14 is fitted onto the rotating roller 2. The chain 13 is fitted onto the driven gear 14 and meshes with it.

[0038] It should also be noted that it includes a canopy 15, which is equipped with LED lights that provide a light source, and the LED lights face the outer periphery of the tensioning frame 3.

[0039] The outer circumferential surface of the tensioning frame 3 is provided with multiple hanging holes for use with hanging tools to hang leather on the tensioning frame 3.

[0040] The above embodiments are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.

Claims

1. A skin examination machine, comprising a rotatable opening and closing mechanism, wherein the outer peripheral surface of the opening and closing mechanism is a hanging surface, characterized in that, The opening and closing mechanism includes a rotating roller, multiple separable tensioning frames, and a first drive source corresponding to the tensioning frames. The tensioning frames are connected to the output end of the first drive source, and the drive source is fixed on the rotating roller, so that the tensioning frames move outward from the rotating roller under the action of the drive source, and a space for stretching leather is formed between the tensioning frames.

2. The skin examination machine according to claim 1, characterized in that, It also includes a second drive source, and the tensioning frame is provided in at least two sets. The two tensioning frames in each set are symmetrical structures. The output end of the second drive source is connected to one of the tensioning frames.

3. A skin examination machine according to claim 2, characterized in that, It also includes a sleeve and a mounting bracket, with at least two sleeves and mounting brackets provided. The sleeve is fitted onto the rotating roller, and the mounting bracket is fixed to the sleeve. The first drive source is a first cylinder, which is mounted on the mounting bracket.

4. A skin examination machine according to claim 3, characterized in that, The mounting bracket is a frame structure that fits onto the sleeve. The frame structure consists of multiple side frames, with at least two side frames located outside the rotating roller.

5. A skin examination machine according to claim 4, characterized in that, It also includes guide posts, which are set on the frame. The inner surface of the tensioning frame is provided with a guide plate, and the guide plate is provided with guide holes that fit onto the guide posts.

6. A skin examination machine according to claim 4, characterized in that, It also features a reinforcing plate that connects multiple frames.

7. A skin examination machine according to claim 5, characterized in that, There are eight first cylinders, four tensioning frames, and eight guide columns. Each pair of first cylinders and guide columns corresponds to one tensioning frame.

8. A skin examination machine according to claim 3, characterized in that, The second driving source is a second cylinder, which is mounted on one of the sleeves and its output end is connected to the other sleeve.

9. A skin examination machine according to any one of claims 1-8, characterized in that, It also includes a power source for driving the rotating roller to rotate. The power source includes a servo motor, a reducer, a chain, and multiple driven gears. The servo motor drives one of the driven gears to rotate through the reducer. Another transmission gear is fitted onto the rotating roller. The chain is fitted onto the driven gear and meshes with it.

10. A skin examination machine according to any one of claims 1-8, characterized in that, It also includes a canopy with LED lights inside providing a light source, the LED lights facing the outer perimeter of the tensioning frame.

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