Leather sewing device

Abstract

The utility model discloses a leather sewing device, and relates to the technical field of leather processing equipment. The leather sewing device comprises a rack, and a leather placing support, a first leather feeding guide wheel assembly and a second leather feeding guide wheel assembly are arranged on the rack; a guide plate assembly, a clamping assembly and a sewing machine assembly are sequentially arranged on the rack from top to bottom, a guide channel extending from top to bottom is arranged in the guide plate assembly, and the first leather conveying guide wheel assembly and the second leather conveying guide wheel assembly are arranged on the two sides of the upper end of the guide channel respectively. The leather sewing device provided by the embodiment of the utility model is used for replacing manual work to connect the tail end of the previous roll of leather with the front end of the next roll of leather in the leather production process, and the whole operation process can be completed by only one worker, so that the labor intensity is reduced, and the roll connecting efficiency is improved.

Description

Technical Field

[0001] The present application relates to the technical field of leather processing equipment, and in particular to a leather sewing device. Background Art

[0002] In the leather production process, it is often necessary to join the rolls, that is, to connect the end of the previous roll of leather with the front end of the next roll of leather.

[0003] At present, manual winding is often used in the leather production process. However, manual winding requires the cooperation of at least two people, has high labor intensity and low winding efficiency, resulting in uncompacted production and affecting production efficiency. Utility Model Content

[0004] The purpose of the present application is to provide a leather sewing device to solve the problem of low efficiency of manual sewing.

[0005] The technical solution adopted by the present application to solve its technical problems is: a leather sewing device, including a frame, on which a leather placing bracket, a first leather feeding guide wheel assembly and a second leather feeding guide wheel assembly are provided; the frame is also provided with a guide plate assembly, a clamping assembly and a stitching machine assembly in sequence from top to bottom, and the guide plate assembly has a guide channel extending from top to bottom, and the first leather feeding guide wheel assembly and the second leather feeding guide wheel assembly are respectively arranged on both sides of the upper end of the guide channel.

[0006] Furthermore, the guide plate assembly includes a first guide plate and a second guide plate arranged on one side of the first guide plate, and the guide channel is formed between the first guide plate and the second guide plate.

[0007] Furthermore, the distance between the first guide plate and the second guide plate gradually decreases from top to bottom.

[0008] Further, the first guide plate is an arc-shaped structure, and the first guide plate protrudes in a direction close to the second guide plate; and / or the second guide plate is an arc-shaped structure, and the second guide plate protrudes in a direction close to the first guide plate.

[0009] Furthermore, the clamping assembly includes a fixed clamping plate, a movable clamping plate arranged on one side of the fixed clamping plate, and a clamping plate driving member for driving the movable clamping plate to approach or move away from the fixed clamping plate.

[0010] Furthermore, the movable clamping plate includes a clamping section and a guide section arranged above the clamping section, and the distance between the guide section and the fixed clamping plate gradually increases from bottom to top.

[0011] Furthermore, the frame is provided with a first detection member for detecting whether there is leather between the first leather feeding guide wheel assembly and the second leather feeding guide wheel assembly.

[0012] Furthermore, the frame is provided with a second detection member for detecting whether the leather is extended downward from the clamping assembly to the right position.

[0013] Furthermore, a controller is provided on the frame, and the controller is respectively connected to the first leather feeding guide wheel assembly, the second leather feeding guide wheel assembly, the clamping assembly, the stitching machine assembly, the first detection member and the second detection member.

[0014] Furthermore, the leather placing bracket is provided with a safety component for preventing the leather roll from slipping.

[0015] Beneficial effects of this application:

[0016] The leather stitching device provided in the embodiment of the present application is used to replace manual work in connecting the end of a previous roll of leather with the front end of a subsequent roll of leather during the leather production process. The entire operation process can be completed by only one worker, which reduces labor intensity and improves the efficiency of stitching. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 is a structural schematic diagram of a leather sewing device provided in an embodiment of the present application;

[0019] Figure 2 This is a state diagram of the leather stitching device provided by the embodiment of the present application when performing leather roll replacement and stitching;

[0020] Figure 3 It is a structural schematic diagram of the clamping assembly.

[0021] Reference numerals:

[0022] 10- rack;

[0023] 11-leather support;

[0024] 12-first leather feeding guide wheel assembly;

[0025] 13- second leather feeding guide wheel assembly;

[0026] 14-guide plate assembly;

[0027] 141 - guide channel; 142 - first guide plate; 143 - second guide plate;

[0028] 15- clamping assembly;

[0029] 151-fixed splint; 152-movable splint; 1521-clamping section; 1522-guide section; 153-splint driving member;

[0030] 16-stitching machine assembly;

[0031] 17- first detection member;

[0032] 18- second detection member;

[0033] 19- Controller;

[0034] 20- Security components;

[0035] 21-leather roll;

[0036] 22-Leather. DETAILED DESCRIPTION

[0037] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application.

[0038] It should be noted that similar numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings. In addition, the embodiments and features in the embodiments of this application can be combined with each other without conflict.

[0039] In the description of the embodiments of the present application, the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, or is the orientation or positional relationship in which the product of the application is usually placed when in use, or is the orientation or positional relationship commonly understood by those skilled in the art. The terms "disposed", "opened", "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, and an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal connection of two elements.

[0040] See also Figure 1 The leather stitching device provided in the embodiment of the present application includes a frame 10, on which a leather placing bracket 11, a first leather feeding guide wheel assembly 12 and a second leather feeding guide wheel assembly 13 are provided; the frame 10 is also provided with a guide plate assembly 14, a clamping assembly 15 and a stitching machine assembly 16 in sequence from top to bottom, and the guide plate assembly 14 has a guide channel 141 extending from top to bottom, and the first leather feeding guide wheel assembly 12 and the second leather feeding guide wheel assembly 13 are respectively arranged on both sides of the upper end of the guide channel 141.

[0041] See also Figure 1 The frame 10 is used to install and support other parts of the leather stitching device, and it can be a frame structure made of steel. The leather placing bracket 11, the first leather feeding guide wheel assembly 12 and the second leather feeding guide wheel assembly 13 are installed on the frame 10 from right to left. The leather placing bracket 11 is used to place the leather roll 21, so that the leather roll 21 is supported on the leather placing bracket 11 and rotates around its own axis to release the leather 22. The leather placing bracket 11 can be a frame structure made of steel, or it can be other structures, as long as the leather roll 21 can be placed. In the process of releasing the leather 22, the leather 22 will drag the leather roll 21. In order to prevent the leather roll 21 from sliding off the leather placing bracket 11, a safety component 20 for preventing the leather roll from sliding off is provided on the leather placing bracket 11. Among them, the safety component 20 can be a limit column, etc. The first leather feeding guide wheel assembly 12 and the second leather feeding guide wheel assembly 13 can both convey the leather 22 on the leather roll 21. Exemplarily, the first leather feeding guide wheel assembly 12 and the second leather feeding guide wheel assembly 13 may include a driving guide wheel, a driven guide wheel and a driving motor. The driving guide wheel is parallel to the driven guide wheel and is rotatably mounted on the frame 10 respectively, and a gap for conveying the leather 22 is formed between the driving guide wheel and the driven guide wheel. The driving motor is mounted on the frame 10 and is transmission-connected to the driving guide wheel to drive the driving guide wheel to rotate, thereby conveying the leather 22. During operation, the conveying direction of the leather 22 can be adjusted by controlling the forward and reverse rotation of the driving motor.

[0042] See also Figure 1 , the guide plate assembly 14, the clamping assembly 15 and the stitching machine assembly 16 are sequentially mounted on the frame 10 from top to bottom. The guide plate assembly 14 has a guide channel 141 extending from top to bottom, and the first leather feeding guide wheel assembly 12 and the second leather feeding guide wheel assembly 13 are respectively arranged on both sides of the upper end of the guide channel 141, so that the end of the previous roll of leather and the front end of the next roll of leather can be respectively transported downward to the clamping assembly 15 through the guide channel 141 by the first leather feeding guide wheel assembly 12 and the second leather feeding guide wheel assembly 13. The clamping assembly 15 is used to clamp the end of the previous roll of leather and the front end of the next roll of leather for stitching. The stitching machine assembly 16 is used to stitch the end of the previous roll of leather and the front end of the next roll of leather together. Among them, the stitching machine assembly 16 may include a track mounted on the frame 10, and a stitching machine arranged on the track and movable on the track; the stitching machine moves on the track to stitch the leather together. Of course, the stitching machine assembly 16 may also adopt other existing structures as long as it can stitch the leather together, and no specific limitation is made here.

[0043] See also Figure 1The process of conveying the leather 22 using the leather stitching device provided in the embodiment of the present application is as follows: first, the leather roll 21 is placed on the leather placing bracket 11, and then the leather 22 on the leather roll 21 is conveyed from right to left through the first leather conveying guide wheel assembly 12 and the second leather conveying guide wheel assembly 13 in sequence. As a conveying method, the first leather conveying guide wheel assembly 12 and the second leather conveying guide wheel assembly 13 can be used as a power mechanism at the same time to provide power to convey the leather. As another conveying method, the second leather conveying guide wheel assembly 13 is used as a power mechanism to provide power to convey the leather; while the first leather conveying guide wheel assembly 12 is only used as a guide wheel to guide the leather and does not provide power.

[0044] See also Figure 2 The process of changing and splicing leather using the leather stitching device provided in the embodiment of the present application is as follows: when the end of the previous roll of leather is separated from the first leather feeding guide wheel assembly 12 and is only transported by the second leather feeding guide wheel assembly 13, the next roll of leather is placed on the leather placing bracket 11; the second leather feeding guide wheel assembly 13 is controlled to transport the previous roll of leather to the right, so that the end of the previous roll of leather is transported downward in the guide channel 141 to the clamping assembly 15, and when the end of the previous roll of leather extends downward to a preset position below the clamping assembly 15, the second leather feeding guide wheel assembly 13 stops feeding the leather; at the same time, the first leather feeding guide wheel assembly 12 is controlled to move leftward. The rear roll of leather is conveyed so that the front end of the rear roll of leather is conveyed downward in the guide channel 141 to the clamping assembly 15. When the front end of the rear roll of leather is aligned with the end of the previous roll of leather, the first leather feeding guide wheel assembly 12 stops feeding the leather; the clamping assembly 15 is controlled to clamp the end of the previous roll of leather with the front end of the rear roll of leather, and the stitching machine assembly 16 is controlled to sew the end of the previous roll of leather with the front end of the rear roll of leather together; then the clamping assembly 15 is controlled to release the leather, and the second leather feeding guide wheel assembly 13 is controlled to convey the leather to the left. The first leather feeding guide wheel assembly 12 can be used only as a guide wheel, and the leather is automatically straightened and continues to be conveyed from right to left.

[0045] The leather stitching device provided in the embodiment of the present application is used to replace manual work in connecting the end of a previous roll of leather with the front end of a subsequent roll of leather during the leather production process. The entire operation process can be completed by only one worker, which reduces labor intensity and improves the efficiency of stitching.

[0046] In some embodiments, see Figure 1The guide plate assembly 14 includes a first guide plate 142 and a second guide plate 143 disposed on one side of the first guide plate 142, and a guide channel 141 is formed between the first guide plate 142 and the second guide plate 143. The first guide plate 142 and the second guide plate 143 are both mounted on the frame 10, the upper end of the first guide plate 142 is disposed close to the first leather feeding guide wheel assembly 12, and the upper end of the second guide plate 143 is disposed close to the second leather feeding guide wheel assembly 13. The distance between the first guide plate 142 and the second guide plate 143 gradually decreases from top to bottom, thereby forming a guide channel 141 with a larger upper portion and a smaller lower portion between the first guide plate 142 and the second guide plate 143, so that the end of the previous roll of leather and the front end of the next roll of leather can be quickly and accurately transported to the clamping assembly 15 when changing and splicing leather. Exemplarily, the first guide plate 142 is an arc-shaped structure, and the first guide plate 142 protrudes toward the direction close to the second guide plate 143; and / or, the second guide plate 143 is an arc-shaped structure, and the second guide plate 143 protrudes toward the direction close to the first guide plate 142.

[0047] In some embodiments, see Figure 1 , Figure 3 The clamping assembly 15 includes a fixed clamping plate 151, a movable clamping plate 152 arranged on one side of the fixed clamping plate 151, and a clamping plate driving member 153 for driving the movable clamping plate 152 to move closer to or away from the fixed clamping plate 151. The fixed clamping plate 151 is fixed on the frame 10, the movable clamping plate 152 is arranged on the left side of the fixed clamping plate 151, and a clamping space located directly below the guide channel 141 is formed between the fixed clamping plate 151 and the movable clamping plate 152. The clamping plate driving member 153 is installed on the frame 10 to drive the movable clamping plate 152 to move closer to or away from the fixed clamping plate 151. Exemplarily, the clamping plate driving member 153 is a linear driver such as a cylinder, a hydraulic cylinder or an electric push rod. During operation, the movable clamping plate 152 is driven closer to or away from the fixed clamping plate 151 by the clamping plate driving member 153, thereby clamping or loosening the leather.

[0048] See also Figure 3 The movable clamping plate 152 includes a clamping section 1521 and a guide section 1522 disposed above the clamping section 1521. The distance between the guide section 1522 and the fixed clamping plate 151 increases gradually from bottom to top. By providing the guide section 1522, the leather can be quickly and accurately guided between the clamping section 1521 and the fixed clamping plate 151, and then the leather between the clamping section 1521 and the fixed clamping plate 151 is clamped.

[0049] In some embodiments, see Figure 1The frame 10 is provided with a first detection member 17 for detecting whether there is leather between the first leather feeding guide wheel assembly 12 and the second leather feeding guide wheel assembly 13. Exemplarily, the first detection member 17 is an infrared detector. By providing the first detection member 17, when it is detected that there is leather between the first leather feeding guide wheel assembly 12 and the second leather feeding guide wheel assembly 13, it indicates that there is no need to change the roll of leather, and when it is detected that there is no leather between the first leather feeding guide wheel assembly 12 and the second leather feeding guide wheel assembly 13, it indicates that there is a need to change the roll of leather, and the leather stitching device performs the change of roll leather according to the above operation.

[0050] In some embodiments, see Figure 1 The frame 10 is provided with a second detection member 18 for detecting whether the leather is extended downward from the clamping assembly 15. Exemplarily, the second detection member 18 is an infrared sensor head. The second detection member 18 is provided to detect whether the leather is extended downward, so as to accurately control the length of the leather extending downward, and avoid the situation that the leather extends downward too long to waste materials or extends downward too short to be unable to sew.

[0051] In some embodiments, see Figure 1 The frame 10 is provided with a controller 19, which is respectively connected to the first leather feeding guide wheel assembly 12, the second leather feeding guide wheel assembly 13, the clamping assembly 15, the stitching machine assembly 16, the first detection member 17, and the second detection member 18. Exemplarily, the controller 19 may be a PLC controller. By providing the controller 19, the other components are automatically controlled, and the operator only needs to perform function switching operations through the control panel of the controller 19, thereby reducing labor intensity and improving operation efficiency.

[0052] The above is only a preferred embodiment of the present application and does not constitute any form of limitation to the present application. Based on the technical essence of the present application and within the spirit and principles of the present application, any simple modification, equivalent replacement and improvement of the above embodiments shall still fall within the protection scope of the technical solution of the present application.

Claims

1. A leather sewing device, characterized in that: The invention comprises a frame (10), on which a leather placing bracket (11), a first leather feeding guide wheel assembly (12) and a second leather feeding guide wheel assembly (13) are arranged; the frame (10) is also provided with a guide plate assembly (14), a clamping assembly (15) and a stitching machine assembly (16) in sequence from top to bottom, the guide plate assembly (14) has a guide channel (141) extending from top to bottom, and the first leather feeding guide wheel assembly (12) and the second leather feeding guide wheel assembly (13) are respectively arranged on both sides of the upper end of the guide channel (141).

2. The leather stitching device according to claim 1, characterized in that: The guide plate assembly (14) comprises a first guide plate (142) and a second guide plate (143) arranged on one side of the first guide plate (142), and the guide channel (141) is formed between the first guide plate (142) and the second guide plate (143).

3. The leather stitching device according to claim 2, characterized in that: The distance between the first guide plate (142) and the second guide plate (143) gradually decreases from top to bottom.

4. The leather stitching device according to claim 2 or 3, characterized in that: The first guide plate (142) is an arc-shaped structure, and the first guide plate (142) protrudes in a direction close to the second guide plate (143); and / or the second guide plate (143) is an arc-shaped structure, and the second guide plate (143) protrudes in a direction close to the first guide plate (142).

5. The leather stitching device according to claim 1, characterized in that: The clamping assembly (15) comprises a fixed clamping plate (151), a movable clamping plate (152) arranged on one side of the fixed clamping plate (151), and a clamping plate driving member (153) for driving the movable clamping plate (152) to move closer to or away from the fixed clamping plate (151).

6. The leather stitching device according to claim 5, characterized in that: The movable clamping plate (152) comprises a clamping section (1521) and a guide section (1522) arranged above the clamping section (1521), and the distance between the guide section (1522) and the fixed clamping plate (151) gradually increases from bottom to top.

7. The leather stitching device according to claim 1, characterized in that: The frame (10) is provided with a first detection member (17) for detecting whether there is leather between the first leather feeding guide wheel assembly (12) and the second leather feeding guide wheel assembly (13).

8. The leather stitching device according to claim 7, characterized in that: The frame (10) is provided with a second detection member (18) for detecting whether the leather has been properly extended downward from the clamping assembly (15).

9. The leather stitching device according to claim 8, characterized in that: The frame (10) is provided with a controller (19), and the controller (19) is respectively connected to the first leather feeding guide wheel assembly (12), the second leather feeding guide wheel assembly (13), the clamping assembly (15), the stitching machine assembly (16), the first detection member (17) and the second detection member (18).

10. The leather stitching device according to claim 1, characterized in that: The leather placing support (11) is provided with a safety component (20) for preventing the leather roll from sliding off.

Images