Leather stretching device for leather processing
By introducing protective devices and transparent plates into the leather stretching device, the problem of injury to personnel caused by leather breakage and rebound has been solved, achieving improvements in safety and convenience.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- YANGXIN JIAHE LEATHER CO LTD
- Filing Date
- 2025-01-21
- Publication Date
- 2026-05-08
AI Technical Summary
Existing leather stretching equipment may cause leather to break and spring back during use, which could injure workers and affect operational safety.
A leather stretching device including a protective device was designed. By setting a combination of a concave cover and a spring rod, it can intercept the leather when it breaks to prevent rebound damage. At the same time, a transparent plate is set to facilitate observation of the stretching situation, and an adjustment device improves the stability and convenience of the equipment.
It effectively prevents leather from rebounding and injuring workers during the stretching process, improves work safety, and enhances testing convenience and equipment stability.
Smart Images
Figure CN224216414U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of stretching equipment technology, and in particular to a leather stretching device for leather processing. Background Technology
[0002] Leather is animal hide that has been modified and is not easily perishable through physical and chemical processing such as hair removal and tanning. During the production and processing of leather, various performance tests need to be carried out on the leather. For example, tensile testing equipment is used to test the tensile properties of the leather to determine whether its tensile strength, elongation, tear strength and other properties are up to standard.
[0003] Existing leather stretching equipment typically involves fixing the leather to two clamps during use, then setting experimental parameters via a controller. Subsequently, a drive column moves the corresponding clamps to stretch the held leather. During stretching, load sensors and displacement measuring mechanisms inside the drive column monitor and record key performance indicators of the leather sample in real time, such as deformation, strength, and elasticity.
[0004] However, because leather may break during the stretching process, the broken leather may rebound and collide with workers, causing them to be hit and injured by the rebounding leather, thus affecting the safety of workers. Utility Model Content
[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a leather stretching device for leather processing.
[0006] To achieve the above objectives, the present invention adopts the following technical solution: a leather stretching device for leather processing, comprising a body, a controller on one side of the body, a transmission column on one side of the body, two clamps on one side of the transmission column, a load sensor on one side of one of the clamps, a protective device on the side of the body near the transmission column, and an adjustment device at the bottom of the body. The protective device includes a screw rod fixedly connected to the body, a circular tube sleeved on the surface of the screw rod, a concave cover fixedly connected to one side of the circular tube, a circular hole plate fixedly connected to the side of the concave cover away from the circular tube, a spring rod slidably connected to the inner wall of the circular hole plate, the other end of the spring in the spring rod fixedly connected to the circular hole plate, and a circular groove opened on the side of the body near the transmission column, wherein the size and shape of the surface of the spring rod are adapted to the size and shape of the inner wall of the circular groove.
[0007] The effect achieved by the above components is as follows: By setting up a protective device, the concave cover is first manually moved, causing the concave cover to drive the round tube to rotate around the screw rod as the center. This causes the concave cover to drive the round hole plate and the spring rod to rotate. When the concave cover rotates to the position where the inner wall of the round hole plate coincides with the inner wall of the round groove, the reaction force of the spring in the spring rod causes the spring rod to insert into the round hole plate and the round groove to fix the position of the concave cover. This allows the concave cover to cover the surface of the transmission column and the two clamps and intercept the broken leather, thereby protecting the personnel. This reduces the possibility that the leather may break and rebound during the stretching process, causing it to collide with the workers and resulting in injuries from being hit by the rebounding leather, thus improving the safety of the personnel during operation.
[0008] Preferably, a handle is fixedly connected to one side of the concave cover, and the inner side of the handle is provided with multiple anti-slip protrusions.
[0009] The effect achieved by the above components is that by setting a handle, the handle can provide a point of leverage for personnel, allowing personnel to easily move the concave cover by manually moving the handle.
[0010] Preferably, a transparent plate is fixedly connected to one side of the concave cover, and the transparent plate penetrates the concave cover.
[0011] The effect achieved by the above components is that by setting up a transparent plate, personnel can quickly view the stretching of the leather inside the concave cover through the transparent plate, thereby improving the convenience of personnel testing the stretching of the leather.
[0012] Preferably, the inner wall of the screw hole rod is threaded with a bolt, and one end of the bolt is fixedly connected to a screw block, the surface of which is larger than the inner wall of the round tube.
[0013] The effect achieved by the above components is that by setting bolts and tightening blocks, personnel can manually rotate the tightening blocks to drive the bolts into the screw hole rod and intercept and limit the round tube, reducing the up-and-down shaking of the round tube along the surface of the screw hole rod during use.
[0014] Preferably, a reinforcing block is fixedly connected to one end of the screw rod, and the reinforcing block is fixedly connected to the machine body.
[0015] The effect achieved by the above components is that by setting up the reinforcing block, the connection strength between the screw rod and the machine body can be increased, reducing the possibility of the screw rod separating from the machine body under stress during use.
[0016] Preferably, the adjusting device includes a screw, which is fixedly connected to the machine body. A cylinder is fitted on the surface of the screw, and a base plate is fixedly connected to one side of the cylinder. A threaded ring is threaded onto the surface of the screw, and a retaining ring is fixedly connected to one side of the threaded ring. The surface of the retaining ring is rotatably connected to the inner wall of the cylinder.
[0017] The effect achieved by the above components is as follows: By setting up an adjustment device, the screw ring is first manually rotated, causing the screw ring to move up and down along the surface of the screw rod. The screw ring then drives the cylinder to move up and down through the retaining ring, which in turn drives the base plate to move up and down. This allows the length of the cylinder and the screw rod to be adjusted. When the length of the cylinder and the screw rod is adjusted to the appropriate position, the machine body is placed on the table. The base plate, together with the cylinder and the screw rod, supports the bottom of the machine body, thereby achieving height adjustment of the machine body. This reduces the possibility of the machine body tilting or shaking when placed on the table, which would affect the normal use of the machine body. It also improves the stability of the machine body and the convenience of height adjustment.
[0018] Preferably, the surface of the screw hole ring is fixedly connected with a plurality of anti-slip strips, and the plurality of anti-slip strips are arranged at equal intervals.
[0019] The effect achieved by the above components is that by setting anti-slip strips, the anti-slip strips can increase the friction between the hand and the surface of the screw hole ring, reducing the chance of the hand slipping when manually turning the screw hole ring.
[0020] Preferably, a rubber pad is fixedly connected to one side of the base plate, and the surface of the rubber pad is provided with multiple protrusions.
[0021] The effect achieved by the above components is that by setting rubber pads, the friction between the base plate and the tabletop can be increased, reducing the possibility of the base plate sliding when supporting the machine body.
[0022] Compared with the prior art, the advantages and positive effects of this utility model are as follows:
[0023] In this invention, by setting up a protective device, the broken leather can be intercepted, reducing the possibility that the leather may break and rebound during the stretching process, causing injury to the workers by being hit by the rebounding leather, thus improving the safety of the workers. Attached Figure Description
[0024] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0025] Figure 2 This utility model Figure 1 A partial structural diagram;
[0026] Figure 3 This is a partial structural schematic diagram of the concave cover of this utility model;
[0027] Figure 4 This is a partial structural diagram of the base plate of this utility model.
[0028] Legend: 1. Body; 2. Controller; 3. Transmission column; 4. Clamp; 5. Load sensor; 6. Protective device; 61. Screw rod; 62. Reinforcing block; 63. Bolt; 64. Tightening block; 65. Circular groove; 66. Circular tube; 67. Concave cover; 68. Circular hole plate; 69. Spring rod; 610. Transparent plate; 611. Handle; 7. Adjustment device; 71. Screw; 72. Cylinder; 73. Base plate; 74. Snap ring; 75. Screw ring; 76. Anti-slip strip; 77. Rubber pad. Detailed Implementation
[0029] Reference Figure 1-4 As shown, this embodiment discloses a leather stretching device for leather processing, including a body 1. A controller 2 is provided on one side of the body 1, a transmission column 3 is provided on one side of the body 1, two clamps 4 are provided on one side of the transmission column 3, a load sensor 5 is provided on one side of one of the clamps 4, a protective device 6 is provided on the side of the body 1 near the transmission column 3, and an adjustment device 7 is provided at the bottom of the body 1. The protective device 6 includes a screw rod 61, which is fixedly connected to the body 1. A round tube 66 is sleeved on the surface of the screw rod 61. A concave cover 67 is fixedly connected to one side of the round tube 66, and a round hole plate 68 is fixedly connected to the side of the concave cover 67 away from the round tube 66. A spring rod 69 is slidably connected to the inner wall of the round hole plate 68, and the other end of the spring in the spring rod 69 is fixedly connected to the round hole plate 68. A round groove 65 is opened on the side of the body 1 near the transmission column 3. The surface size and shape of 9 are adapted to the inner wall size and shape of the circular groove 65. By setting the protective device 6, the concave cover 67 is first manually moved, so that the concave cover 67 drives the circular tube 66 to rotate around the screw rod 61 as the center. This causes the concave cover 67 to drive the circular hole plate 68 and the spring rod 69 to rotate. When the concave cover 67 rotates to the position where the inner wall of the circular hole plate 68 coincides with the inner wall of the circular groove 65, under the reaction force of the spring in the spring rod 69, the spring rod 69 inserts into the circular hole plate 68 and the circular groove 65 to fix the position of the concave cover 67. This allows the concave cover 67 to cover the surface of the transmission column 3 and the two clamps 4 and intercept the broken leather, thereby protecting the personnel. This reduces the possibility that the leather may break and rebound during the stretching process, causing it to collide with the workers and resulting in injury from the rebounding leather. This improves the safety of the personnel during operation.
[0030] Reference Figure 2 and Figure 3As shown, this embodiment discloses a handle 611 fixedly connected to one side of the concave cover 67. The inner side of the handle 611 is provided with multiple anti-slip protrusions. By setting the handle 611, the handle 611 can provide a point of leverage for personnel, allowing personnel to easily move the concave cover 67 by manually moving the handle 611. A transparent plate 610 is fixedly connected to one side of the concave cover 67. The transparent plate 610 penetrates the concave cover 67. By setting the transparent plate 610, personnel can quickly view the stretching condition of the leather inside the concave cover 67 through the transparent plate 610, improving the convenience of personnel testing the stretching condition of the leather.
[0031] Reference Figure 2 and Figure 3 As shown, this embodiment discloses a bolt 63 threadedly connected to the inner wall of the screw hole rod 61. One end of the bolt 63 is fixedly connected to a tightening block 64. The surface of the tightening block 64 is larger than the inner wall of the round tube 66. By setting the bolt 63 and the tightening block 64, personnel can manually rotate the tightening block 64 to drive the bolt 63 into the screw hole rod 61 and intercept and limit the round tube 66, reducing the up-and-down shaking of the round tube 66 along the surface of the screw hole rod 61 during use. One end of the screw hole rod 61 is fixedly connected to a reinforcing block 62, which is fixedly connected to the machine body 1. By setting the reinforcing block 62, the reinforcing block 62 can increase the connection strength between the screw hole rod 61 and the machine body 1, reducing the possibility of the screw hole rod 61 separating from the machine body 1 under stress during use.
[0032] Reference Figure 4 As shown, this embodiment discloses an adjustment device 7 including a screw 71, which is fixedly connected to the body 1. A cylinder 72 is fitted onto the surface of the screw 71, and a base plate 73 is fixedly connected to one side of the cylinder 72. A threaded ring 75 is threaded onto the surface of the screw 71, and a retaining ring 74 is fixedly connected to one side of the threaded ring 75. The surface of the retaining ring 74 is rotatably connected to the inner wall of the cylinder 72. By setting the adjustment device 7, the threaded ring 75 is first manually rotated, causing the threaded ring 75 to move up and down along the surface of the screw 71, so that the threaded ring 75 passes through the retaining ring 73. 4. The cylinder 72 moves up and down, causing the base plate 73 to move up and down, thus adjusting the length of the cylinder 72 and the screw 71. When the length of the cylinder 72 and the screw 71 is adjusted to the appropriate position, the machine body 1 is placed on the table. The base plate 73, together with the cylinder 72 and the screw 71, supports the bottom of the machine body 1, thereby adjusting the placement height of the machine body 1. This reduces the possibility of the machine body 1 tilting or shaking when placed on the table, which would affect the normal use of the machine body 1, and improves the placement stability and the convenience of height adjustment of the machine body 1.
[0033] Reference Figure 4As shown in the figure, this embodiment discloses that a plurality of anti-slip strips 76 are fixedly connected to the surface of the screw hole ring 75. The plurality of anti-slip strips 76 are arranged at equal intervals. By setting the anti-slip strips 76, the anti-slip strips 76 can increase the friction between the hand and the surface of the screw hole ring 75, reducing the possibility of slippage when manually rotating the screw hole ring 75. A rubber pad 77 is fixedly connected to one side of the base plate 73. The surface of the rubber pad 77 is provided with a plurality of protrusions. By setting the rubber pad 77, the rubber pad 77 can increase the friction between the base plate 73 and the tabletop, reducing the possibility of slippage when the base plate 73 supports the machine body 1.
[0034] Working principle: First, the leather is fixed on two clamps 4. One clamp 4 is fixed in position, and the other clamp 4 is connected to the moving end of the transmission column 3. Then, the experimental parameters are set by the controller 2. Subsequently, the transmission column 3 drives the corresponding clamp 4 to move and stretch the clamped leather. At the same time as stretching, the load sensor 5 and the displacement measuring mechanism inside the transmission column 3 monitor and record the key performance indicators of the leather sample, such as deformation, strength, and elasticity, in real time.
[0035] First, manually move handle 611 to rotate the concave cover 67. This causes the concave cover 67 to rotate the round tube 66 around the screw rod 61, which in turn causes the round hole plate 68 and spring rod 69 to rotate. When the concave cover 67 rotates to the position where the inner wall of the round hole plate 68 coincides with the inner wall of the round groove 65, the spring rod 69, under the reaction force of the spring, inserts into the round hole plate 68 and the round groove 65 to fix the position of the concave cover 67. This allows the concave cover 67 to cover the surface of the transmission column 3 and the two clamps 4 and intercept the broken leather, thus protecting the personnel.
[0036] First, manually rotate the screw ring 75 to move it up and down along the surface of the screw 71. This causes the screw ring 75 to move the cylinder 72 up and down via the retaining ring 74, which in turn causes the base plate 73 to move up and down. This adjusts the length of the cylinder 72 and the screw 71. When the lengths of the cylinder 72 and the screw 71 are adjusted to the appropriate position, place the machine body 1 on the table. The base plate 73, together with the cylinder 72 and the screw 71, supports the bottom of the machine body 1, thus adjusting the placement height of the machine body 1.
[0037] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any other way. Any person skilled in the art may use the disclosed technical content to make changes or modifications to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model, without departing from the scope of the utility model's technical solution, still fall within the protection scope of this utility model's technical solution. In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood through specific circumstances.
Claims
1. A leather stretching device for leather processing, comprising a body (1), characterized in that: A controller (2) is provided on one side of the machine body (1), a transmission column (3) is provided on one side of the machine body (1), two clamps (4) are provided on one side of the transmission column (3), a load sensor (5) is provided on one side of one of the clamps (4), a protective device (6) is provided on the side of the machine body (1) near the transmission column (3), an adjustment device (7) is provided at the bottom of the machine body (1), and the protective device (6) includes a screw rod (61), which is fixedly connected to the machine body (1). A circular tube (66) is fitted on the surface. A concave cover (67) is fixedly connected to one side of the circular tube (66). A circular hole plate (68) is fixedly connected to the side of the concave cover (67) away from the circular tube (66). A spring rod (69) is slidably connected to the inner wall of the circular hole plate (68). The other end of the spring in the spring rod (69) is fixedly connected to the circular hole plate (68). A circular groove (65) is opened on the side of the machine body (1) near the transmission column (3). The size and shape of the surface of the spring rod (69) are adapted to the size and shape of the inner wall of the circular groove (65).
2. The leather stretching device for leather processing according to claim 1, characterized in that: A handle (611) is fixedly connected to one side of the concave cover (67), and the inner side of the handle (611) is provided with multiple anti-slip protrusions.
3. A leather stretching device for leather processing according to claim 1, characterized in that: A transparent plate (610) is fixedly connected to one side of the concave cover (67), and the transparent plate (610) penetrates the concave cover (67).
4. A leather stretching device for leather processing according to claim 1, characterized in that: The inner wall of the screw hole rod (61) is threaded with a bolt (63), and one end of the bolt (63) is fixedly connected with a screw block (64). The surface of the screw block (64) is larger than the inner wall of the round tube (66).
5. A leather stretching device for leather processing according to claim 1, characterized in that: One end of the screw rod (61) is fixedly connected to a reinforcing block (62), and the reinforcing block (62) is fixedly connected to the body (1).
6. A leather stretching device for leather processing according to claim 1, characterized in that: The adjusting device (7) includes a screw (71), which is fixedly connected to the body (1). A cylinder (72) is fitted on the surface of the screw (71). A base plate (73) is fixedly connected to one side of the cylinder (72). A threaded ring (75) is threadedly connected to the surface of the screw (71). A retaining ring (74) is fixedly connected to one side of the threaded ring (75). The surface of the retaining ring (74) is rotatably connected to the inner wall of the cylinder (72).
7. A leather stretching device for leather processing according to claim 6, characterized in that: The surface of the screw hole ring (75) is fixedly connected with a plurality of anti-slip strips (76), and the plurality of anti-slip strips (76) are arranged at equal intervals.
8. A leather stretching device for leather processing according to claim 6, characterized in that: A rubber pad (77) is fixedly connected to one side of the base plate (73), and the surface of the rubber pad (77) is provided with multiple protrusions.