A leather stretching and flattening device for leather product manufacturing

Abstract

This invention discloses a leather stretching and flattening device for leather product manufacturing, relating to the field of leather processing technology. The invention includes a base, with a support plate fixed to its upper surface. A first motor is fixed to both sides of the support plate. A threaded rod is fixed to the output shaft of the first motor, and a threaded tube is threadedly connected to the outer ring of the threaded rod. A first bearing is fixed to the outer ring of the threaded tube, and a transmission plate is fixed to the outer ring of the first bearing. Through the action of a clamping roller, the output shaft of a second motor drives a transmission shaft to rotate. The transmission shaft, in turn, drives the clamping roller to rotate via the support rod. The rotation of the clamping roller further stretches the leather. The cylindrical clamping roller provides uniform support to both ends of the leather, preventing wrinkles caused by uneven tension. This device can stretch the leather according to its length and toughness, and the adjustment process is quick and convenient, greatly improving the working efficiency of the stretching device.

Description

Technical Field

[0001] This invention belongs to the field of leather processing technology, and in particular relates to a leather stretching and flattening device for leather product manufacturing. Background Technology

[0002] Leather is a high-end natural material widely used in clothing, bags, furniture, and other fields. In leather processing, stretching is an important technique that can alter the shape, feel, and hardness of leather, giving it greater design flexibility and artistic expression. Stretching refers to the process of stretching or compressing leather under specific temperature and humidity conditions, causing it to deform and maintain a certain degree of permanent change. Before stretching, the leather needs to be treated, such as tanning and dyeing, to give it sufficient strength and stability. The basic principle of stretching is to change the internal fiber structure of the leather, causing it to pull, misalign, compress, or stretch, thus acquiring new properties while deforming.

[0003] Existing stretching and flattening methods typically involve fixing the two ends of the leather with clamps and then pulling them towards the ends as needed. In this stretching method, the two ends of the leather are prone to deformation and misalignment under the pressure of the clamps, resulting in poor stretching effect and failure to meet product requirements. Summary of the Invention

[0004] The purpose of this invention is to provide a leather stretching and flattening device for leather product manufacturing. Through the action of a clamping roller, the output shaft of a second motor drives a transmission shaft to rotate. The transmission shaft, in turn, drives the clamping roller to rotate via a support rod. As the clamping roller rotates, it further stretches the leather. The cylindrical clamping roller provides uniform support to both ends of the leather, preventing wrinkles caused by uneven tension. This device can stretch the leather according to its length and toughness, and the adjustment process is quick and convenient, greatly improving the working efficiency of the stretching device. It solves the problem in existing stretching methods where the ends of the leather are prone to deformation and misalignment under the pressure of the clamps, resulting in poor stretching effects and failure to meet product requirements.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A leather stretching and flattening device for leather product manufacturing includes a base, a support plate fixed on the upper surface of the base, and a first motor fixed on both sides of the support plate.

[0007] The first motor output shaft is fixed with a threaded rod, the outer ring of the threaded rod is threadedly connected to a threaded tube, the outer ring of the threaded tube is fixed with a first bearing, and the outer ring of the first bearing is fixed with a transmission plate.

[0008] An adjusting plate is fixed to the outer ring of the transmission plate, and a sliding groove is opened on the surface of the adjusting plate;

[0009] A slider is fixed to the upper surface of the base, and the slider is slidably connected to the slide groove.

[0010] A bracket is fixed to the top of the adjustment plate, a second motor is fixed to one end of one bracket, and a second bearing is fixed to one end of the other bracket;

[0011] The output shaft of the second motor is fixed with a transmission shaft, and a number of support rods are fixed on the outer ring of the transmission shaft. A fastening roller is fixed at one end of each support rod.

[0012] The fastening roller has a placement groove on one side, an adjustment groove is fixed on one side of the placement groove, and a positioning plate is fixed in the center of the adjustment groove.

[0013] Springs are fixed on both sides of the positioning plate, an adjusting block is fixed to one end of the spring, and a positioning rod is fixed to one end of the adjusting block.

[0014] A fastener is fixed to one end of the positioning rod.

[0015] The present invention is further configured such that: the fastener includes an adjusting shell, and a connecting rod is fixed to the outside of the adjusting shell;

[0016] The adjusting shell is fixedly connected to the positioning rod;

[0017] A hydraulic cylinder is fixed to one end of the connecting rod, and the output shaft of the hydraulic cylinder passes through the adjusting shell.

[0018] The present invention is further configured such that: a movable block is fixed to the output shaft of the hydraulic cylinder, and a first connecting plate is fixed to both sides of the movable block;

[0019] A transmission rod is rotatably connected inside the first connecting plate.

[0020] The present invention is further configured such that: both sides of the bottom of the adjusting shell are fixed with limiting plates, and the surface of the limiting plates is provided with limiting grooves;

[0021] A limiting block is slidably connected inside the limiting groove, and a movable shell is fixed on one side of the limiting block.

[0022] The present invention is further configured such that: a movable plate is fixed to the bottom of the movable shell, and a plurality of second connecting plates are fixed to one side of the movable plate;

[0023] The end of the transmission rod away from the first connecting plate is rotatably connected to the second connecting plate.

[0024] The present invention is further configured such that: an adjusting rod is fixed to the bottom of the movable plate, and a clamping plate is fixed to one end of the adjusting rod.

[0025] The invention is further configured such that the adjusting block has a "T" shaped structure and matches the inner wall of the adjusting groove.

[0026] The present invention is further configured such that the fastening roller has a hollow cylindrical structure;

[0027] The slider has a "T" shaped structure and passes through the groove.

[0028] The present invention has the following beneficial effects:

[0029] 1. This invention utilizes the action of a fastening roller. The output shaft of the second motor drives the transmission shaft to rotate, which in turn drives the fastening roller to rotate via the support rod. When the fastening roller rotates, it further stretches the leather. The cylindrical fastening roller can provide uniform support to both ends of the leather, preventing wrinkles caused by uneven tension at both ends. This device can stretch the leather according to its length and toughness, and the adjustment process is quick and convenient, greatly improving the working efficiency of the stretching device.

[0030] 2. In this invention, a spring is fixed between the adjusting block and the positioning plate by means of a fastener. The spring pushes the adjusting block to move to both ends of the adjusting groove, thereby causing the fastener inside the adjusting groove to move to both ends. This ensures that the leather remains in an unfolded state during the stretching process and prevents wrinkles from forming on the fastening roller.

[0031] Of course, any product implementing this invention does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0032] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0033] Figure 1 This is a schematic diagram of the structure of a leather stretching and flattening device for leather product manufacturing according to the present invention.

[0034] Figure 2 For the present invention Figure 1 Enlarged view of a portion of point A in the middle.

[0035] Figure 3 This is a schematic diagram of the side view structure of the present invention.

[0036] Figure 4 This is a schematic diagram of the adjustment plate structure of the present invention.

[0037] Figure 5This is a schematic diagram of the fastening roller structure of the present invention.

[0038] Figure 6 For the present invention Figure 5 Enlarged view of section B in the middle.

[0039] Figure 7 This is a side view structural diagram of the base of the present invention.

[0040] The attached diagram lists the components represented by each number as follows:

[0041] 1-Base, 2-Support plate, 3-First motor, 4-Threaded rod, 5-Threaded pipe, 6-First bearing, 7-Transmission plate, 8-Adjusting plate, 9-Slide groove, 10-Slider, 11-Bracket, 12-Second motor, 13-Second bearing, 14-Transmission shaft, 15-Support rod, 16-Fastening roller, 17-Placement groove, 18-Adjusting groove, 19-Positioning plate, 20-Spring, 21-Adjusting block, 22-Positioning rod, 23-Fastener, 2301-Adjusting shell, 2302-Connecting rod, 2303-Hydraulic cylinder, 2304-Moving block, 2305-First connecting plate, 2306-Transmission rod, 2307-Limiting plate, 2308-Limiting groove, 2309-Limiting block, 2310-Moving shell, 2311-Moving plate, 2312-Second connecting plate, 2313-Adjusting rod, 2314-Clamping plate. Detailed Implementation

[0042] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0043] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0044] In this invention, unless otherwise stated, the directional terms such as "up" and "down" generally refer to the directions shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" generally refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not intended to limit this invention. Specific Implementation Example 1

[0046] Please see Figure 1-7This invention relates to a leather stretching and flattening device for leather product manufacturing, comprising a base 1, a support plate 2 fixed to the upper surface of the base 1, and a first motor 3 fixed to both sides of the support plate 2; a threaded rod 4 fixed to the output shaft of the first motor 3, a threaded tube 5 threadedly connected to the outer ring of the threaded rod 4, a first bearing 6 fixed to the outer ring of the threaded tube 5, and a transmission plate 7 fixed to the outer ring of the first bearing 6; an adjusting plate 8 fixed to the outer ring of the transmission plate 7, and a sliding groove 9 formed on the surface of the adjusting plate 8; a slider 10 fixed to the upper surface of the base 1, the slider 10 being slidably connected to the sliding groove 9; and a bracket 11 fixed to the top of the adjusting plate 8. A second motor 12 is fixed at one end of a bracket 11, and a second bearing 13 is fixed at one end of another bracket 11. A transmission shaft 14 is fixed to the output shaft of the second motor 12. Several support rods 15 are fixed to the outer ring of the transmission shaft 14. A fastening roller 16 is fixed to one end of each support rod 15. A placement groove 17 is opened on one side of the fastening roller 16. An adjustment groove 18 is fixed to one side of the placement groove 17. A positioning plate 19 is fixed to the center of the adjustment groove 18. Springs 20 are fixed to both sides of the positioning plate 19. An adjustment block 21 is fixed to one end of each spring 20. A positioning rod 22 is fixed to one end of each adjustment block 21. A fastener 23 is fixed to one end of each positioning rod 22.

[0047] Specifically, the adjusting block 21 has a "T" shaped structure and matches the inner wall of the adjusting groove 18.

[0048] Furthermore, the fastening roller 16 has a hollow cylindrical structure; the slider 10 has a "T" shaped structure and passes through the groove 9.

[0049] The operation process of this embodiment is as follows: When using this device, both ends of the leather are respectively inserted into the placement groove 17 on one side of the fastening roller 16, and the two ends of the leather are fixed by the clamping plate 2314. After the two ends of the leather are fixed, the first motor 3 on both sides of the support plate 2 is turned on. The output shaft of the first motor 3 drives the threaded rod 4 at one end to rotate. When the threaded rod 4 rotates, it drives the threaded tube 5 on its outer side to rotate. When the threaded tube 5 moves outside the threaded rod 4, it drives the first bearing 6 and the transmission plate 7 on its outer side to move together to both sides of the base 1. The transmission plate 7 drives the adjusting plate on its top. Together with the support 11, the leather moves to both ends, pulling the leather apart to achieve a stretching effect. When further stretching is needed, the second motor 12 can be turned on. The output shaft of the second motor 12 drives the transmission shaft 14 to rotate, which in turn drives the fastening roller 16 to rotate via the support rod 15. When the fastening roller 16 rotates, the leather is further stretched. This device can stretch the leather according to its length and toughness, and the adjustment process is quick and convenient, greatly improving the working efficiency of the stretching device. Specific Implementation Example 2

[0051] Please see Figure 2-6Based on the first specific embodiment, the fastener 23 includes an adjusting shell 2301, with a connecting rod 2302 fixed to the outside of the adjusting shell 2301; the adjusting shell 2301 is fixedly connected to the positioning rod 22; a hydraulic cylinder 2303 is fixed to one end of the connecting rod 2302, and the output shaft of the hydraulic cylinder 2303 passes through the adjusting shell 2301; a movable block 2304 is fixed to the output shaft of the hydraulic cylinder 2303, and a first connecting plate 2305 is fixed to both sides of the movable block 2304; a transmission rod 2306 is rotatably connected inside the first connecting plate 2305; a limit plate 2307 is fixed to both sides of the bottom of the adjusting shell 2301, and a limit groove 2308 is opened on the surface of the limit plate 2307; a limit block 2309 is slidably connected inside the limit groove 2308, and a movable shell 2310 is fixed to one side of the limit block 2309.

[0052] Specifically, a movable plate 2311 is fixed to the bottom of the movable shell 2310, and several second connecting plates 2312 are fixed to one side of the movable plate 2311; the end of the transmission rod 2306 away from the first connecting plate 2305 is rotatably connected to the second connecting plate 2312.

[0053] Furthermore, an adjusting rod 2313 is fixed to the bottom of the movable plate 2311, and a clamping plate 2314 is fixed to one end of the adjusting rod 2313.

[0054] The operation process of this embodiment is as follows: When it is necessary to fix both ends of the leather, the leather can be placed between the two clamping plates 2314 and the hydraulic cylinder 2303 is opened. The output shaft of the hydraulic cylinder 2303 drives the movable block 2304 at one end to move into the adjusting shell 2301. When the movable block 2304 moves, through the transmission of the transmission rod 2306, the moving plate 2311 at one end of the transmission rod 2306 moves closer to the center of the adjusting shell 2301. At this time, the clamping plate 2314 also moves towards the center of the adjusting shell 2301. The clamping plates 2314 on both sides can clamp and fix the leather. At the same time, since a spring 20 is fixed between the adjusting block 21 and the positioning plate 19, the spring 20 pushes the adjusting block 21 to move towards both ends of the adjusting groove 18, that is, the fastener 23 inside the adjusting groove 18 moves towards both ends, thereby ensuring that the leather remains in an unfolded state during the stretching process and preventing the leather from wrinkling on the fastening roller 16.

[0055] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0056] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A leather stretching and flattening device for leather product manufacturing, comprising a base (1), characterized in that: A support plate (2) is fixed on the upper surface of the base (1), and a first motor (3) is fixed on both sides of the support plate (2); The output shaft of the first motor (3) is fixed with a threaded rod (4), the outer ring of the threaded rod (4) is threaded with a threaded tube (5), the outer ring of the threaded tube (5) is fixed with a first bearing (6), and the outer ring of the first bearing (6) is fixed with a transmission plate (7). An adjusting plate (8) is fixed to the outer ring of the transmission plate (7), and a sliding groove (9) is opened on the surface of the adjusting plate (8); A slider (10) is fixed on the upper surface of the base (1), and the slider (10) is slidably connected to the slide groove (9); The top of the adjustment plate (8) is fixed with a bracket (11), one end of the bracket (11) is fixed with a second motor (12), and the other end of the bracket (11) is fixed with a second bearing (13). The output shaft of the second motor (12) is fixed with a transmission shaft (14), and a plurality of support rods (15) are fixed on the outer ring of the transmission shaft (14). One end of the support rod (15) is fixed with a fastening roller (16). The fastening roller (16) has a placement groove (17) on one side, and an adjustment groove (18) is fixed on one side of the placement groove (17). A positioning plate (19) is fixed in the center of the adjustment groove (18). Springs (20) are fixed on both sides of the positioning plate (19), and an adjusting block (21) is fixed at one end of the spring (20), and a positioning rod (22) is fixed at one end of the adjusting block (21). One end of the positioning rod (22) is fixed with a fastener (23).

2. The leather stretching and smoothing device for leather product manufacturing according to claim 1, characterized in that, The fastener (23) includes an adjusting shell (2301), and a connecting rod (2302) is fixed to the outside of the adjusting shell (2301); The adjusting shell (2301) is fixedly connected to the positioning rod (22); A hydraulic cylinder (2303) is fixed at one end of the connecting rod (2302), and the output shaft of the hydraulic cylinder (2303) passes through the adjusting shell (2301).

3. The leather stretching and smoothing device for leather product manufacturing according to claim 2, characterized in that, The output shaft of the hydraulic cylinder (2303) is fixed with a movable block (2304), and a first connecting plate (2305) is fixed on both sides of the movable block (2304); The first connecting plate (2305) is rotatably connected to a transmission rod (2306).

4. The leather stretching and smoothing device for leather product manufacturing according to claim 3, characterized in that, Limiting plates (2307) are fixed on both sides of the bottom of the adjusting shell (2301), and limiting grooves (2308) are opened on the surface of the limiting plates (2307); The limiting groove (2308) is slidably connected to the limiting block (2309), and a movable shell (2310) is fixed on one side of the limiting block (2309).

5. The leather stretching and smoothing device for leather product manufacturing according to claim 4, characterized in that, The bottom of the movable shell (2310) is fixed with a movable plate (2311), and a plurality of second connecting plates (2312) are fixed on one side of the movable plate (2311); The end of the transmission rod (2306) away from the first connecting plate (2305) is rotatably connected to the second connecting plate (2312).

6. The leather stretching and smoothing device for leather product manufacturing according to claim 5, characterized in that, An adjusting rod (2313) is fixed to the bottom of the movable plate (2311), and a clamping plate (2314) is fixed to one end of the adjusting rod (2313).

7. The leather stretching and flattening device for leather product manufacturing according to claim 1, characterized in that, The adjusting block (21) has a "T" shaped structure and matches the inner wall of the adjusting groove (18).

8. The leather stretching and smoothing device for leather product manufacturing according to claim 1, characterized in that, The fastening roller (16) has a hollow cylindrical structure; The slider (10) has a "T" shaped structure and passes through the groove (9).

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