Automatic cutting device for leather product processing

By combining counterweight roller extrusion and steam leveling, the problem of unevenness in leather fabric during cutting was solved, achieving both flatness and precision in cutting.

CN224172771UActive Publication Date: 2026-04-28GUANGZHOU MR BAO LEATHER GOODS & CLOTHING CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
GUANGZHOU MR BAO LEATHER GOODS & CLOTHING CO LTD
Filing Date
2025-01-21
Publication Date
2026-04-28

AI Technical Summary

Technical Problem

Existing leather cutting devices tend to cause unevenness on the surface of leather during cutting, which affects the cutting effect.

Method used

The process combines counterweight roller extrusion and steam leveling. The counterweight rollers extrude the leather fabric by gravity, while a steam generator provides hot steam to level the leather fabric. At the same time, a servo motor and hydraulic cylinder drive the cutting blade to cut the leather.

Benefits of technology

It improves the smoothness and neatness of the leather fabric and ensures the precision and consistency of the cuts.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to an automatic cutting device for leather product processing, which belongs to the technical field of leather product processing and comprises a base, a wind-up roller is rotatably mounted on the inner wall of the base, leather fabric is sleeved on the outer side of the wind-up roller, a mounting frame is fixedly connected to the top of the base, and a counterweight roller is rotatably connected to the inside of the mounting frame. And air outlet holes are formed in the counterweight roller in an array mode, a steam generator is fixedly installed on one side of the installation frame, and a ventilation pipe is fixedly connected to one side of the counterweight roller. The device has the advantages that uneven leather fabric can be extruded through the gravity of the balance weight roller, the balance weight roller can be driven to rotate through the arrangement of the adjusting assembly, meanwhile, hot steam can be continuously fed into the balance weight roller through the steam generator, and the leather fabric can be extruded through the balance weight roller. And hot steam is spread on the leather fabric through the uniformly distributed air outlet holes, so that the flattening effect on the leather fabric is further improved, and the cutting uniformity is improved.
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Description

Technical Field

[0001] This utility model relates to the field of leather product processing technology, and in particular to an automated cutting device for leather product processing. Background Technology

[0002] Leather is animal hide that has been denatured and is not easily perishable, obtained through physical and chemical processing such as hair removal and tanning. Leather is composed of natural protein fibers tightly woven in three-dimensional space. Its surface has a special grain layer with natural grain and luster, and a comfortable feel. In the process of human evolution, people discovered that the juice of some plants or mineral oils have a certain tanning effect on leather. The raw hide is soaked in the juice, which makes it more breathable and rot-resistant, thus giving the hide softness, tear resistance, and bending resistance.

[0003] A search revealed a Chinese patent for a rapid cutting device for leather product processing (authorization announcement number CN214142410U), comprising a base plate with two support plates fixedly connected to its top surface. This invention utilizes a motor to drive an arc-shaped gear, which in turn rotates in conjunction with a driven gear, causing a cylindrical rod to rotate intermittently. This intermittently transports leather onto a leather roller on the side of the cylindrical rod. The operation is simple and convenient. This patented technology can simultaneously move a vertical plate and a rotating rod to the left via a cylinder retraction, causing the rotating rod to contact the leather surface. A cutting blade on the side of the vertical plate cuts the leather, which then falls onto the side of the rotating rod. The cylinder then extends, moving the vertical plate to the right while simultaneously coordinating with the rotating rod to transport the leather into a collection box. This eliminates the need for manual repackaging of the cut leather, saving time and effort.

[0004] However, the above-mentioned device still has some drawbacks in actual use. The most obvious one is that when the above-mentioned cutting device processes leather products, the leather fabric is placed on the cylindrical rod, which causes the surface of the leather fabric to be uneven during cutting. If this is not addressed, it may affect the cutting effect of the leather fabric. Utility Model Content

[0005] In view of the above-mentioned problems in the prior art, the main objective of this utility model is to provide an automated cutting device for processing leather products.

[0006] The technical solution of this utility model is as follows: an automated cutting device for processing leather products includes a base, a take-up roller rotatably mounted on the inner wall of the base, a leather fabric sleeved on the outer side of the take-up roller, a mounting frame fixedly connected to the top of the base, a counterweight roller rotatably connected inside the mounting frame, an array of air vents inside the counterweight roller, a steam generator fixedly mounted on one side of the mounting frame, a vent pipe fixedly connected to one side of the counterweight roller, a rotary joint fixedly connected to the end of the vent pipe away from the counterweight roller, and the output end of the steam generator fixedly connected to the other end of the rotary joint.

[0007] In a preferred embodiment, an adjustment assembly is provided on one side of the mounting bracket. The adjustment assembly includes a servo motor fixedly mounted on the top of the base and located on one side of the mounting bracket, and a drive gear is fixedly connected to the output shaft of the servo motor.

[0008] In a preferred embodiment, the adjustment assembly further includes a driven gear fixedly connected to the outside of the vent pipe, the driven gear being meshed with the driving gear.

[0009] In a preferred embodiment, a cutting assembly is provided at the top of the base. The cutting assembly includes a U-shaped frame fixedly connected to the top of the base. Two hydraulic cylinders are fixedly installed at the top of the U-shaped frame, and a cutting blade is provided on the inner wall of the U-shaped frame.

[0010] In a preferred embodiment, the U-shaped frame is provided with a replacement assembly, which includes two mounting plates disposed inside the U-shaped frame. One of the mounting plates is fixedly connected to the piston rod of the hydraulic cylinder, and the other mounting plate is fixedly connected to the cutting blade. Multiple fixing bolts are disposed between the two mounting plates.

[0011] In a preferred embodiment, the two mounting plates are connected by fixing bolts, and a threaded disc is threadedly connected to the rotating shaft of the take-up roller.

[0012] In a preferred embodiment, a drive motor is embedded inside the base, and the output shaft of the drive motor is fixedly connected to the rotation shaft of the take-up roller.

[0013] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0014] 1. In this utility model, the uneven leather fabric can be squeezed by the gravity of the counterweight roller, and the counterweight roller can be rotated by the setting of the adjustment component. At the same time, hot steam can be continuously sent into the counterweight roller by the steam generator, and the hot steam is spread on the leather fabric through the evenly distributed air outlets to further improve the flatness of the leather fabric and improve the neatness of the cutting.

[0015] 2. In this utility model, the rotation of the output shaft of the servo motor can drive the drive gear to rotate, thereby realizing the rotation of the driven gear, which in turn enables the counterweight roller to operate. Furthermore, the extension and retraction of the piston rod of the hydraulic cylinder can drive the mounting plate and the cutting blade to move downward, thereby achieving the purpose of cutting the leather fabric. Attached Figure Description

[0016] Figure 1 This utility model provides an overall perspective view of an automated cutting device for processing leather products;

[0017] Figure 2 This utility model provides an overall structural schematic diagram of an automated cutting device for processing leather products;

[0018] Figure 3 This utility model provides a schematic diagram of the internal structure of the counterweight roller in an automated cutting device for leather product processing.

[0019] Figure 4 This utility model provides an automated cutting device for processing leather products. Figure 2 Enlarged view of point A in the middle.

[0020] Legend: 1. Base; 2. Take-up roller; 3. Leather fabric; 4. U-shaped frame; 5. Hydraulic cylinder; 6. Mounting plate; 7. Cutting blade; 8. Fixing bolt; 9. Counterweight roller; 10. Air outlet; 11. Mounting bracket; 12. Servo motor; 13. Driven gear; 14. Driven gear; 15. Rotary joint; 16. Steam generator. Detailed Implementation

[0021] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0022] Reference Figure 1-4An automated cutting device for processing leather products includes a base 1, a take-up roller 2 rotatably mounted on the inner wall of the base 1, a leather fabric 3 sleeved on the outer side of the take-up roller 2, a mounting frame 11 fixedly connected to the top of the base 1, a counterweight roller 9 rotatably connected inside the mounting frame 11, an array of air vents 10 inside the counterweight roller 9, a steam generator 16 fixedly mounted on one side of the mounting frame 11, a vent pipe fixedly connected to one side of the counterweight roller 9, a rotary joint 15 fixedly connected to the end of the vent pipe away from the counterweight roller 9, and the output end of the steam generator 16... The other end of the rotary joint 15 is fixedly connected. When cutting the leather fabric 3, it will pass through the counterweight roller 9 in the mounting frame 11. The weight of the counterweight roller 9 can squeeze the uneven leather fabric 3. By adjusting the setting of the component, the counterweight roller 9 can be driven to rotate. At the same time, the steam generator 16 can continuously send hot steam into the counterweight roller 9 and spread the hot steam on the leather fabric 3 through the evenly distributed air outlets 10 to further improve the flatness of the leather fabric 3 and improve the neatness of the cut.

[0023] Specifically, an adjustment assembly is provided on one side of the mounting frame 11. The adjustment assembly includes a servo motor 12 fixedly mounted on the top of the base 1 and located on one side of the mounting frame 11. A drive gear 14 is fixedly connected to the output shaft of the servo motor 12. The rotation of the output shaft of the servo motor 12 can drive the drive gear 14 to rotate, thereby enabling the rotation of the driven gear 13, which in turn enables the counterweight roller 9 to operate. The adjustment assembly also includes a driven gear 13 fixedly connected to the outside of the vent pipe. The driven gear 13 meshes with the drive gear 14. A cutting assembly is provided at the top of the base 1. The cutting assembly includes a U-shaped frame 4 fixedly connected to the top of the base 1. Two hydraulic cylinders 5 are fixedly mounted on the top of the U-shaped frame 4. The extension and retraction of the piston rods of the hydraulic cylinders 5 can drive the mounting plate 6 and the cutting blade 7 to move downward, thereby achieving the purpose of cutting the leather fabric 3. The inner wall of the U-shaped frame 4 is provided with the cutting blade 7.

[0024] Specifically, the U-shaped frame 4 has a replacement assembly inside, which includes two mounting plates 6 inside the U-shaped frame 4. One mounting plate 6 is fixedly connected to the piston rod of the hydraulic cylinder 5, and the other mounting plate 6 is fixedly connected to the cutting blade 7. Multiple fixing bolts 8 are provided between the two mounting plates 6, and the two mounting plates 6 are connected by fixing bolts 8. By setting the fixing bolts 8, the hydraulic cylinder 5 and the cutting blade 7 can be separated, thereby realizing the purpose of installing and removing the cutting blade 7. The rotating shaft of the take-up roller 2 is threadedly connected to a threaded disc. The base 1 has a drive motor embedded inside. By rotating the output shaft of the drive motor, the take-up roller 2 can be driven to rotate. The output shaft of the drive motor is fixedly connected to the rotating shaft of the take-up roller 2.

[0025] Working principle: First, when cutting the leather fabric 3, the operator can control the drive motor to start via an external control device, which in turn drives the take-up roller 2 to unwind. The leather fabric 3 then passes through the counterweight roller 9 inside the mounting frame 11. The weight of the counterweight roller 9 compresses the uneven leather fabric 3. The rotation of the output shaft of the servo motor 12 drives the drive gear 14 to rotate, which in turn drives the driven gear 13, thus enabling the counterweight roller 9 to operate. Simultaneously, the steam generator 16 heats the fabric. Steam is continuously fed into the counterweight roller 9 and spread onto the leather fabric 3 through the evenly distributed air outlets 10 to further improve the smoothness of the leather fabric 3. Subsequently, the leather fabric 3 comes to the bottom of the U-shaped frame 4. By controlling the hydraulic cylinder 5, the piston rod of the hydraulic cylinder 5 can be extended and retracted, which can drive the mounting plate 6 and the cutting blade 7 to move downward, thereby achieving the purpose of cutting the leather fabric 3. By setting the fixing bolts 8, the hydraulic cylinder 5 and the cutting blade 7 can be separated, thereby achieving the purpose of installing and removing the cutting blade 7.

[0026] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0027] The above are merely preferred embodiments of this application and are not intended to limit this application. Although this application 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 this application should be included within the protection scope of this application.

Claims

1. An automated cutting device for processing leather products, comprising a base (1), characterized in that: A take-up roller (2) is rotatably mounted on the inner wall of the base (1). A leather fabric (3) is sleeved on the outer side of the take-up roller (2). A mounting frame (11) is fixedly connected to the top of the base (1). A counterweight roller (9) is rotatably connected inside the mounting frame (11). An air outlet (10) is arrayed inside the counterweight roller (9). A steam generator (16) is fixedly mounted on one side of the mounting frame (11). A vent pipe is fixedly connected to one side of the counterweight roller (9). A rotary joint (15) is fixedly connected to the end of the vent pipe away from the counterweight roller (9). The output end of the steam generator (16) is fixedly connected to the other end of the rotary joint (15).

2. The automated cutting device for processing leather products according to claim 1, characterized in that: An adjustment assembly is provided on one side of the mounting bracket (11). The adjustment assembly includes a servo motor (12) fixedly mounted on the top of the base (1) and located on one side of the mounting bracket (11). A drive gear (14) is fixedly connected to the output shaft of the servo motor (12).

3. The automated cutting device for processing leather products according to claim 2, characterized in that: The adjustment assembly also includes a driven gear (13) fixedly connected to the outside of the ventilator, the driven gear (13) meshing with the driving gear (14).

4. The automated cutting device for leather product processing according to claim 1, characterized in that: The top of the base (1) is provided with a cutting assembly, which includes a U-shaped frame (4) fixedly connected to the top of the base (1). Two hydraulic cylinders (5) are fixedly installed on the top of the U-shaped frame (4), and a cutting blade (7) is provided on the inner wall of the U-shaped frame (4).

5. An automated cutting device for processing leather products according to claim 4, characterized in that: The U-shaped frame (4) is equipped with a replacement assembly, which includes two mounting plates (6) inside the U-shaped frame (4). One of the mounting plates (6) is fixedly connected to the piston rod of the hydraulic cylinder (5), and the other mounting plate (6) is fixedly connected to the cutting blade (7). Multiple fixing bolts (8) are provided between the two mounting plates (6).

6. The automated cutting device for processing leather products according to claim 5, characterized in that: The two mounting plates (6) are connected by fixing bolts (8), and a threaded disc is threadedly connected to the rotating shaft of the take-up roller (2).

7. The automated cutting device for processing leather products according to claim 1, characterized in that: The base (1) has a drive motor embedded inside, and the output shaft of the drive motor is fixedly connected to the rotation shaft of the take-up roller (2).