Leather cutting device for leather bag production

By precisely coordinating the positioning mechanism and the cutting components, the problem of misalignment in the cutting position of the leather cutting device is solved, achieving precision and safety in leather cutting and avoiding resource waste and safety hazards.

CN224325351UActive Publication Date: 2026-06-05DONGGUAN ZHENGYONG LEATHER ACCESSORIES CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
DONGGUAN ZHENGYONG LEATHER ACCESSORIES CO LTD
Filing Date
2025-05-23
Publication Date
2026-06-05

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  • Figure CN224325351U_ABST
    Figure CN224325351U_ABST
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Abstract

The utility model discloses a kind of leather cutting devices for leather bag production, it is related to leather bag production technical field, including abutment, the inner side of the abutment movably installs three first conveyer belts of horizontal distribution, the inner side of the abutment movably installs second conveyer belt, and second conveyer belt is located between the position of left two first conveyer belts, the upper side of the second conveyer belt movably installs moving platform, the upper side of the abutment is fixedly connected with cutting mechanism, the upper side of the abutment is movably installed with positioning mechanism in the position close to right side.The leather cutting device for leather bag production of the utility model, after the first conveyer belt is conveyed to leather, positioning mechanism is used to detect the length of leather passing through itself, then electric push rod driving mechanism platform moves left and right, and then adjust the lower knife position of cutting assembly, so that the cutting position of cutting assembly is more accurate, avoid cutting position misplacement, leading to the size of leather piece cut out in front and back is inconsistent.
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Description

Technical Field

[0001] This utility model relates to the field of leather bag production technology, and in particular to a leather cutting device for leather bag production. Background Technology

[0002] A leather bag is a handbag made of leather and belongs to the category of daily necessities. Leather bags are bags made of genuine leather or synthetic leather. During production, long strips of leather need to be cut, and then the equal portions are processed into various leather products. Most existing leather cutting devices rely on manual cutting, which introduces errors, resulting in inconsistent sizes for each cut piece and wasting resources. To conserve resources, a leather cutting device capable of equally dividing long strips of leather is needed.

[0003] Chinese patent document CN212128217U discloses a leather cutting device for bag production, including a feeding mechanism, a cutting mechanism, and a discharging mechanism. The cutting mechanism has a feeding mechanism on its left and right sides for feeding the leather to the cutting mechanism for cutting, and a discharging mechanism on its left and right sides for discharging the cut leather. This leather cutting device for bag production, by setting up the feeding and discharging mechanisms, can transport the leather at a uniform speed, thus meeting the requirement of uniform cutting; by setting up the cutting mechanism, it can cut the leather into equal sections, thus meeting the needs of subsequent processing.

[0004] The existing technology has the following problems:

[0005] The cutting device directly cuts the leather, but after the leather is fed, the cutting position of the cutting blade may be misaligned due to various conditions. For example, if the two sides of the cutting position are not fixed during cutting, the size of the newly cut leather may be different from the size of the previously cut leather. Utility Model Content

[0006] This utility model provides a leather cutting device for leather bag production to solve the problems mentioned in the background art.

[0007] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0008] A leather cutting device for leather bag production includes a base, three first conveyor belts arranged laterally are movably mounted on the inner side of the base, a second conveyor belt is movably mounted on the inner side of the base and is located between the two first conveyor belts on the left, a movable platform is movably mounted on the upper side of the second conveyor belt, a cutting mechanism is fixedly connected to the upper side of the base and is located on the upper side of the movable platform, two left and right rotatably connected to the left and right sides of the cutting mechanism, and a positioning mechanism is movably mounted on the upper side of the base near the right side.

[0009] The cutting mechanism includes a standing platform, the lower side of which is fixedly connected to the upper side of a base. A mechanism platform is slidably connected to the inner side of the standing platform. Two guide plates symmetrically distributed front and rear are movably sleeved on the inner sides of the front and rear walls of the standing platform. Several vertically distributed guide grooves are opened on the front and rear sides of the mechanism platform. An electric push rod is fixedly connected to the side of the two guide plates that are far apart from each other. The lower side of the electric push rod is fixedly connected to the front and rear sides of the standing platform near the bottom. A cutting assembly is movably installed on the inner upper surface of the mechanism platform.

[0010] Preferably, a cover plate is fixedly connected to the upper side of each of the two electric push rods, and the cover plate is located on the front and rear sides of the stand.

[0011] Preferably, two symmetrically distributed fixing components are fixedly connected to the inner front and rear sides of the mechanism platform near the bottom. Each fixing component includes a base plate. A plurality of elastic telescopic rods distributed front and rear are movably sleeved on the inner side of the base plate. A top plate is fixedly connected to the upper side of each elastic telescopic rod, and a pressure plate is fixedly connected to the lower side of each elastic telescopic rod. Two clamping platforms distributed front and rear are fixedly connected to the bottom of the inner front and rear sides of the mechanism platform. The inner sides of the base plate and the top plate are movably sleeved on the outer sides of the clamping platforms. A first spring is movably sleeved on the outer side of each of the elastic telescopic rods, and the first spring is located between the base plate and the top plate.

[0012] Preferably, the top plate is rotatably connected to two rotating plates that are symmetrically distributed front and back.

[0013] Preferably, the sealing mechanism includes a sealing cover, the upper side of which is rotatably connected to the left and right sides of the platform near the top. Two baffles are fixedly connected to the front and rear sides of the inner side of the sealing cover near the platform. Two push rods are symmetrically distributed front and rear and movably sleeved on the front and rear walls of the sealing cover near the bottom. A circular plate is fixedly connected to the outer side of each of the two push rods. Two second springs are movably sleeved on the front and rear walls of the sealing cover near the bottom, with the second springs located on the side of the circular plate near the platform. A clamping plate is fixedly connected to the side of each of the two push rods near the guide plate. The outer side of the clamping plate is movably sleeved on the bottom of the left and right sides of the platform near the front and rear sides.

[0014] Preferably, four rectangularly distributed brightness sensors are movably installed on the left and right sides of the platform near the front and rear sides, and the brightness sensors are located on the side of the baffle closest to the platform.

[0015] Preferably, the enclosure is made of a transparent material.

[0016] Due to the adoption of the above technical solution, the technological progress achieved by this utility model compared to the prior art is as follows:

[0017] 1. This utility model provides a leather cutting device for leather bag production, which adopts the cooperation of a positioning mechanism, a base, a first conveyor belt, a second conveyor belt, a moving table, a cutting mechanism, a standing table, a mechanism table, a guide plate, a guide groove, an electric push rod, a cutting component, and a cover plate. After the leather is conveyed by the first conveyor belt, the positioning mechanism is used to detect the length of the leather passing through it. Then, the electric push rod drives the mechanism table to move left and right, thereby adjusting the cutting position of the cutting component, making the cutting position of the cutting component more accurate and avoiding the problem of inconsistent size of the leather pieces cut before and after the cutting position is misaligned.

[0018] 2. This utility model provides a leather cutting device for leather bag production, which adopts the cooperation of a cutting component, a fixing component, a closing mechanism, a closing cover, a baffle, a push rod, a circular plate, a second spring, a clamping plate and a brightness sensor. The closing cover protects the cutting component and the fixing component, so that the operator will not come into contact with the cutting component during operation, thereby improving the overall safety of use and avoiding operator misoperation and safety hazards. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0020] Figure 2 This is a partial cross-sectional three-dimensional structural schematic diagram of the present invention;

[0021] Figure 3 This is a partial cross-sectional three-dimensional structural diagram of the cutting mechanism part of this utility model;

[0022] Figure 4 This is a three-dimensional structural diagram of the support platform of this utility model;

[0023] Figure 5 This is a three-dimensional structural diagram of the substrate portion of this utility model;

[0024] Figure 6 This utility model Figure 2 Enlarged structural diagram of part A in the middle.

[0025] In the diagram: 1. Base; 2. First conveyor belt; 3. Second conveyor belt; 4. Moving table; 5. Cutting mechanism; 51. Stand; 52. Mechanism table; 53. Guide plate; 54. Guide groove; 55. Electric push rod; 56. Cutting assembly; 57. Cover plate; 58. Fixing assembly; 581. Base plate; 582. Elastic telescopic rod; 583. Top plate; 584. Pressure plate; 585. First spring; 586. Turning plate; 587. Clamping table; 6. Sealing mechanism; 61. Sealing cover; 62. Baffle; 63. Push rod; 64. Circular plate; 65. Second spring; 66. Clamping plate; 67. Brightness sensor; 7. Positioning mechanism. Detailed Implementation

[0026] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0027] like Figures 1-6 As shown, a leather cutting device for leather bag production includes a base 1. Three first conveyor belts 2 are movably installed on the inner side of the base 1 and are distributed laterally. A second conveyor belt 3 is movably installed on the inner side of the base 1 and is located between the two first conveyor belts 2 on the left. A movable platform 4 is movably installed on the upper side of the second conveyor belt 3. A cutting mechanism 5 is fixedly connected to the upper side of the base 1 and is located on the upper side of the movable platform 4. Two closed mechanisms 6 are rotatably connected to the left and right sides of the cutting mechanism 5. A positioning mechanism 7 is movably installed on the upper side of the base 1 near the right side.

[0028] The cutting mechanism 5 includes a platform 51, the lower side of which is fixedly connected to the upper side of the base 1. A mechanism platform 52 is slidably connected to the inner side of the platform 51. Two guide plates 53 are symmetrically distributed front and rear on the inner sides of the front and rear walls of the platform 51. Several vertically distributed guide grooves 54 are opened on the front and rear sides of the mechanism platform 52. Electric push rods 55 are fixedly connected to the side of the two guide plates 53 that are far apart from each other. The lower side of the electric push rods 55 is fixedly connected to the front and rear sides of the platform 51 near the bottom. A cutting assembly 56 is movably installed on the inner upper surface of the mechanism platform 52.

[0029] It should be noted that the positioning mechanism 7 consists of two parts. One is a lifting conveyor roller, which is located between the two first conveyor belts 2 on the right. The area between the two first conveyor belts 2 on the right is a rigid platform. When the cut leather passes through the positioning mechanism 7, the conveyor roller presses against the leather and then conveys it to the right, separating the uncut leather from the cut leather. The other part is a laser positioning component, which is used to detect the length of the leather that has passed through the positioning mechanism 7. The electric push rod 55 drives the guide plate 53 to move up and down. The round shaft on the guide plate 53 is slidably connected in the guide groove 54, so that when the guide plate 53 moves up and down, the mechanism table 52 moves left and right. The cutting assembly 56 contains a lifting rod and a cutting blade. The lifting rod drives the cutting blade to move up and down for cutting. The second conveyor belt 3 is used to drive the moving table 4 to move left and right, so that the cutting blade on the cutting assembly 56 is aligned with the slit on the moving table 4.

[0030] like Figure 4 As shown, a cover plate 57 is fixedly connected to the upper side of each of the two electric push rods 55, and the cover plate 57 is located on the front and rear sides of the stand 51.

[0031] It should be noted that the cover plate 57 is used to block the openings on the front and rear sides of the platform 51 for the guide plate 53 to move, so as to prevent debris from entering.

[0032] like Figures 3-5 As shown, two symmetrically distributed fixing components 58 are fixedly connected to the inner front and rear sides of the mechanism platform 52 near the bottom. The fixing components 58 include a base plate 581. Several elastic telescopic rods 582 distributed front and rear are movably sleeved on the inner side of the base plate 581. A top plate 583 is fixedly connected to the upper side of the elastic telescopic rods 582, and a pressure plate 584 is fixedly connected to the lower side of the elastic telescopic rods 582. Two clamping platforms 587 distributed front and rear are fixedly connected to the bottom of the inner front and rear sides of the mechanism platform 52. The inner front and rear sides of the base plate 581 and the top plate 583 are movably sleeved on the outer side of the clamping platforms 587. A first spring 585 is movably sleeved on the outer side of each of the several elastic telescopic rods 582, and the first spring 585 is located between the base plate 581 and the top plate 583.

[0033] It should be noted that when the cutting blade on the cutting assembly 56 moves down, the protrusions on its left and right sides drive the top plate 583 to move down, which in turn drives the pressure plate 584 to move down, causing the pressure plate 584 to press down on both sides of the leather cutting position to fix the leather. When the cutting blade on the cutting assembly 56 returns to its original position, the first spring 585 pushes the top plate 583 to return it to its original position.

[0034] like Figure 5 As shown, two rotating plates 586 are symmetrically distributed front and back on the upper side of the top plate 583.

[0035] It should be noted that a torsion spring is provided between the rotating plate 586 and the top plate 583. The protrusion of the cutting blade on the cutting assembly 56 presses on the rotating plate 586. Pressing the rotating plate 586 causes it to disengage from the underside of the protrusion, so that the substrate 581, the top plate 583, and the pressure plate 584 can be removed from the card table 587 as a whole.

[0036] like Figure 6 As shown, the sealing mechanism 6 includes a sealing cover 61. The upper side of the sealing cover 61 is rotatably connected to the left and right sides of the platform 51 near the top. Two baffles 62 are fixedly connected to the front and rear sides of the inner side of the sealing cover 61 near the platform 51. Two push rods 63 are symmetrically distributed in the front and rear sides of the sealing cover 61 near the bottom. A circular plate 64 is fixedly connected to the outer side of each push rod 63. Two second springs 65 are movably connected to the front and rear sides of the sealing cover 61 near the bottom, and the second springs 65 are located on the side of the circular plate 64 near the platform 51. A clamping plate 66 is fixedly connected to the side of each push rod 63 near the guide plate 53. The outer side of the clamping plate 66 is movably connected to the bottom of the left and right sides of the platform 51 near the front and rear sides.

[0037] It should be noted that the second spring 65 pushes the circular plate 64, causing the clamping plate 66 to be locked on the bottom of the left and right sides of the platform 51 near the front and rear sides. After pressing the push rod 63 and rotating the push rod 63 ninety degrees, the second spring 65 pushes the circular plate 64 to push the clamping plate 66 out of the left and right sides of the platform 51, so that the bottom of the enclosure 61 is no longer fixed. The enclosure 61 is used to protect the cutting component 56 and the fixing component 58, so that the workers cannot come into contact with the cutting component 56 and the fixing component 58.

[0038] like Figure 4 As shown, four rectangularly distributed brightness sensors 67 are movably installed on the left and right sides of the platform 51 near the front and rear sides, and the brightness sensors 67 are located on the side of the baffle 62 near the platform 51.

[0039] It should be noted that when the baffle 62 blocks the brightness sensor 67 and the brightness sensor 67 is closed, the cutting assembly 56 can be in operation. When the brightness sensor 67 receives light, the cutting assembly 56 cannot be in operation, so as to avoid the cutting assembly 56 operating and causing safety hazards when the enclosure 61 is open.

[0040] like Figure 6 As shown, the enclosure 61 is made of transparent material.

[0041] It should be noted that the transparent material allows staff to observe the inside of the enclosure 61 when it is not open.

[0042] The working principle of this utility model is as follows: First, the positioning mechanism 7 consists of two parts. One is a liftable conveyor roller located between the two first conveyor belts 2 on the right side. The space between the two first conveyor belts 2 on the right side is a rigid platform. When the cut leather passes through the positioning mechanism 7, the conveyor roller presses against the leather and then conveys it to the right, separating the uncut leather from the cut leather. The other part is a laser positioning component used to detect the length of the leather passing through the positioning mechanism 7. The electric push rod 55 drives the guide plate 53 to move up and down. The round shaft on the guide plate 53 is slidably connected in the guide groove 54, so that the mechanism platform 52 moves left and right when the guide plate 53 moves up and down. The cutting component 56 contains a lifting rod and a cutting blade. The lifting rod drives the cutting blade to move up and down for cutting. After the leather is conveyed by the first conveyor belts 2, the positioning mechanism 7 detects the length of the leather passing through it. Then, the electric push rod 55 drives the mechanism platform 52 to move left and right, thereby adjusting the cutting position of the cutting component 56, making the cutting position of the cutting component 56 more accurate and avoiding misalignment of the cutting position, which would result in uneven cutting. To address the issue of inconsistent leather piece sizes, the second spring 65 pushes the circular plate 64, causing the clamping plate 66 to lock onto the bottom of the left and right sides of the stand 51 near the front and rear sides. Pressing the push rod 63 and then rotating it 90 degrees causes the second spring 65 to push the circular plate 64, pushing the clamping plate 66 out of the left and right sides of the stand 51. This removes the bottom of the enclosure 61 from its fixed position. The enclosure 61 protects the cutting assembly 56 and the fixing assembly 58, preventing workers from contacting them. The baffle 62 blocks the brightness sensor 67, allowing the cutting assembly 56 to operate when the brightness sensor 67 is closed. When the brightness sensor 67 receives light, the cutting assembly 56 cannot operate, preventing safety hazards caused by the cutting assembly 56 operating while the enclosure 61 is open. By protecting the cutting assembly 56 and the fixing assembly 58 with the enclosure 61, workers cannot contact the cutting assembly 56 during operation, thus improving overall safety and preventing accidental operation and potential safety hazards.

[0043] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A leather cutting device for leather bag production, comprising a base (1), characterized in that: The base (1) is movably installed with three first conveyor belts (2) arranged laterally. The base (1) is movably installed with a second conveyor belt (3), which is located between the two first conveyor belts (2) on the left. The second conveyor belt (3) is movably installed with a moving platform (4) on the upper side of the second conveyor belt (3). The upper side of the base (1) is fixedly connected with a cutting mechanism (5), which is located on the upper side of the moving platform (4). The left and right sides of the cutting mechanism (5) are rotatably connected with two left and right closed mechanisms (6). The upper side of the base (1) is movably installed with a positioning mechanism (7) near the right side. The cutting mechanism (5) includes a platform (51), the lower side of which is fixedly connected to the upper side of the base (1). A mechanism platform (52) is slidably connected to the inner side of the platform (51). Two guide plates (53) are symmetrically distributed in front and back on the inner sides of the front and rear walls of the platform (51). Several vertically distributed guide grooves (54) are opened on the front and rear sides of the mechanism platform (52). An electric push rod (55) is fixedly connected to the side of the two guide plates (53) that are far apart from each other. The lower side of the electric push rod (55) is fixedly connected to the front and rear sides of the platform (51) near the bottom. A cutting component (56) is movably installed on the inner upper surface of the mechanism platform (52).

2. The leather cutting device for leather bag production according to claim 1, characterized in that: Both of the electric push rods (55) are fixedly connected to the upper side of a cover plate (57), and the cover plate (57) is located on the front and rear sides of the stand (51).

3. The leather cutting device for leather bag production according to claim 1, characterized in that: Two fixed components (58) are fixedly connected to the inner front and rear sides near the bottom of the mechanism platform (52). The fixed components (58) include a base plate (581). Several elastic telescopic rods (582) distributed front and rear are movably sleeved on the inner side of the base plate (581). A top plate (583) is fixedly connected to the upper side of the elastic telescopic rod (582). A pressure plate (584) is fixedly connected to the lower side of the elastic telescopic rod (582). Two clamping platforms (587) distributed front and rear are fixedly connected to the bottom of the inner front and rear sides of the mechanism platform (52). The inner front and rear sides of the base plate (581) and the top plate (583) are movably sleeved on the outer side of the clamping platforms (587). A first spring (585) is movably sleeved on the outer side of each of the elastic telescopic rods (582), and the first spring (585) is located between the base plate (581) and the top plate (583).

4. The leather cutting device for leather bag production according to claim 3, characterized in that: The top plate (583) is rotatably connected to two rotating plates (586) that are symmetrically distributed front and back.

5. The leather cutting device for leather bag production according to claim 1, characterized in that: The closing mechanism (6) includes a closing cover (61). The upper side of the closing cover (61) is rotatably connected to the left and right sides of the platform (51) near the top. The inner front and rear sides of the closing cover (61) are fixedly connected to two baffles (62) distributed front and back. The front and rear walls of the closing cover (61) are movably sleeved with two push rods (63) symmetrically distributed front and back. The outer sides of the two push rods (63) are fixedly connected with circular plates (64). The front and rear walls of the closing cover (61) are movably sleeved with two second springs (65) distributed front and back, and the second springs (65) are located on the side of the circular plate (64) near the platform (51). The side of the two push rods (63) near the guide plate (53) is fixedly connected with a clamping plate (66). The outer side of the clamping plate (66) is movably sleeved on the bottom of the left and right sides of the platform (51) near the front and rear sides.

6. The leather cutting device for leather bag production according to claim 5, characterized in that: Four rectangularly distributed brightness sensors (67) are movably installed on the left and right sides of the platform (51) near the front and rear sides, and the brightness sensors (67) are located on the side of the baffle (62) near the platform (51).

7. The leather cutting device for leather bag production according to claim 5, characterized in that: The enclosure (61) is made of transparent material.