Automatic tensioning mechanism for vamp processing

Abstract

The utility model relates to the technical field of vamp processing, in particular to an automatic tensioning mechanism used for vamp processing, and solves the problems that in the prior art, cloth close to a driving shaft cannot be fixed, so that the cloth possibly tilts in the tensioning process, and the cloth is uneven. An automatic tensioning mechanism for vamp processing comprises a tensioning base, a first tensioning rod is fixedly installed at the top of the tensioning base, a second tensioning rod is fixedly installed at the top of the tensioning base, a tensioning table is movably installed between the second tensioning rod and the first tensioning rod and located at the top of the tensioning base, and a lifting assembly is arranged at the bottom of the tensioning table. According to the cloth tensioning device, different kinds of cloth can be tensioned through rising of the tensioning table, meanwhile, the first tensioning rod and the second tensioning rod are matched, edge warping of the cloth in the tensioning process can be effectively avoided, and therefore the flatness of the cloth is improved, and cutting operation of workers is facilitated.

Description

Technical Field

[0001] This utility model relates to the field of shoe upper processing technology, and in particular to an automatic tensioning mechanism for shoe upper processing. Background Technology

[0002] In the process of shoe upper processing, cutting the fabric is a crucial step. This is because different styles of shoes have unique design requirements. Cutting the fabric ensures that it accurately matches the shoe pattern, guaranteeing that the upper conforms to the design shape and size, thus ensuring both aesthetics and comfort. In order to improve the accuracy and aesthetics of the fabric cutting process, an automatic tensioning mechanism for shoe upper processing is required.

[0003] Chinese Patent Publication No. CN218832126U discloses an automatic tensioning mechanism for shoe upper processing. The mechanism includes a main body with a mounting groove on its top. A feeding shaft is movably connected to the top of the main body via the mounting groove, and shoe upper fabric is fixedly connected to the outer side of the feeding shaft. Adjustment grooves are provided on the front and back of the main body, with tensioning components fixedly connected to the inner side of each groove. A tensioning box is fixedly connected to the front and back of the main body away from the adjustment grooves. An adjustment mechanism is fixedly connected to the front of the tensioning box, and a receiving mechanism is fixedly connected to the front of the main body. The automatic tensioning mechanism, with its tensioning shaft, lower tensioning frame, telescopic rod, upper tensioning frame, and roller, improves the tensioning effect, enabling it to simultaneously tension the shoe upper fabric in four directions. This avoids shrinkage of the shoe upper fabric after tensioning and prevents deformation of the cut shoe upper.

[0004] Although the existing device can tension the shoe upper fabric in four directions at the same time, thus avoiding shrinkage after tensioning, the fabric near the drive shaft cannot be fixed during the tensioning process. Therefore, it may curl up during the tensioning process, making the fabric uneven, which will affect the subsequent cutting operation. Utility Model Content

[0005] The purpose of this invention is to provide an automatic tensioning mechanism for shoe upper processing, which solves the problem in the prior art that the fabric near the drive shaft cannot be fixed, so the fabric may curl up during the tensioning process, resulting in uneven fabric.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] An automatic tensioning mechanism for shoe upper processing includes a tensioning base, a tensioning rod 1 fixedly mounted on the top of the tensioning base, a tensioning rod 2 fixedly mounted on the top of the tensioning base, a tensioning platform movably mounted between the tensioning rod 2 and the tensioning rod 1 and located on the top of the tensioning base, and a lifting assembly provided at the bottom of the tensioning platform. The lifting assembly includes a stepper motor 1, a threaded rod, a sleeve rod, a telescopic rod, a limiting slider 1, and a threaded hole. The stepper motor 1 is fixedly mounted on the bottom of the tensioning base, the threaded rod is fixedly connected to the transmission end of the stepper motor 1 and extends through to the top of the tensioning base, the sleeve rod is fixedly mounted inside the top of the tensioning base, the telescopic rod is movably sleeved inside the sleeve rod, the limiting slider 1 is fixedly mounted on the side surface of the telescopic rod, and the threaded hole is opened at the bottom of the telescopic rod, with the threaded rod and the threaded hole threadedly connected.

[0008] Preferably, a material roll is placed on the top of the tensioning base, and a fixing component for fixing the material roll is provided on the top of the tensioning base. The fixing component includes a placement groove, an electric push rod, and a clamping block.

[0009] Preferably, the placement groove is opened on the top of the tensioning base, the electric push rod is fixedly installed at the front and rear ends of the tensioning base, the telescopic end of the electric push rod extends into the interior of the placement groove, and the clamping block is fixedly installed at the telescopic end of the electric push rod.

[0010] Preferably, the top of the tensioning table is provided with movable slide grooves on the front and rear sides, and a movable slider is slidably installed inside the movable slide groove. The inner wall of the movable slide groove and the bottom of the movable slider are provided with a moving component. The moving component includes a limiting slide groove, a bidirectional lead screw, a second stepper motor and a second limiting slider. The limiting slide groove is opened on the lower surface of the movable slide groove, and the bidirectional lead screw is rotatably connected inside the limiting slide groove.

[0011] Preferably, stepper motor 2 is fixedly installed at the rear end of the tensioning table, and the transmission end of stepper motor 2 is connected to the bidirectional lead screw drive. Limiting slider 2 is fixedly installed at the bottom of the moving slider, and limiting slider 2 is threadedly connected to the bidirectional lead screw.

[0012] Preferably, the top of the movable slider is provided with a clamping assembly, which includes a limiting post, an electric push rod II, a clamping plate and a rubber pad. The limiting post is fixedly connected to the top of the movable slider in a parallel arrangement. The electric push rod II is fixedly installed on the top of the movable slider and located between the limiting posts. The clamping plate is movably sleeved on the outside of the limiting post, and the rubber pad is fixedly installed on the bottom of the clamping plate.

[0013] Preferably, a support column is fixedly installed at the bottom of the tensioning base, an anti-slip pad is fixedly installed at the bottom of the support column, a take-up roller is rotatably connected to the top of the tensioning base, and a rotary motor is fixedly installed at the rear end of the tensioning base, with the drive end of the rotary motor being drively connected to the take-up roller.

[0014] This utility model has the following beneficial effects:

[0015] This invention enables tensioning of different types of fabrics by raising the tensioning table. In addition, with the cooperation of tensioning rod one and tensioning rod two, it can effectively prevent the fabric from curling up during the tensioning process, thereby improving the flatness of the fabric and facilitating the cutting operation of the workers.

[0016] This invention uses an electric push rod to drive a clamping block to hold and fix the fabric roll, thereby effectively preventing the fabric roll from rotating during the tensioning process and improving the stability of the fabric during tensioning. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a three-dimensional front view schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a three-dimensional structural diagram of a partial component of the lifting assembly of this utility model;

[0020] Figure 3 This is a top-view three-dimensional structural diagram of the tensioning base component of this utility model;

[0021] Figure 4 This is a schematic diagram of the overall three-dimensional bottom view of the present invention;

[0022] Figure 5 This is a three-dimensional structural diagram of the tensioning table component of this utility model;

[0023] Figure 6 This is a three-dimensional structural diagram of a partial component of the clamping assembly of this utility model.

[0024] In the diagram: 1. Tensioning base; 2. Tensioning rod one; 3. Tensioning rod two; 4. Tensioning table; 5. Material roll; 6. Moving chute; 7. Moving slider; 8. Support column; 9. Anti-slip pad; 10. Take-up roller; 11. Rotary motor; 401. Stepper motor one; 402. Threaded rod; 403. Sleeve rod; 404. Telescopic rod; 405. Limiting slider one; 406. Threaded hole; 501. Placement slot; 502. Electric push rod one; 503. Clamping block; 601. Limiting chute; 602. Bidirectional lead screw; 603. Stepper motor two; 604. Limiting slider two; 701. Limiting column; 702. Electric push rod two; 703. Clamping plate; 704. Rubber pad. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0026] Reference Figure 1-6 An automatic tensioning mechanism for shoe upper processing includes a tensioning base 1, a tensioning rod 2 fixedly mounted on the top of the tensioning base 1, a tensioning rod 3 fixedly mounted on the top of the tensioning base 1, a tensioning platform 4 movably mounted between the tensioning rod 3 and the tensioning rod 2 and located on the top of the tensioning base 1, and a lifting assembly provided at the bottom of the tensioning platform 4. The lifting assembly includes a stepper motor 401, a threaded rod 402, a sleeve rod 403, a telescopic rod 404, a limiting slider 405, and a threaded hole 406. Stepper motor 401 is fixedly installed at the bottom of tensioning base 1. Threaded rod 402 is fixedly connected to the transmission end of stepper motor 401 and extends through to the top of tensioning base 1. Sleeve rod 403 is fixedly installed inside the top of tensioning base 1. Telescopic rod 404 is movably sleeved inside sleeve rod 403. Limiting slider 405 is fixedly installed on the side surface of telescopic rod 404. Threaded hole 406 is opened at the bottom of telescopic rod 404. Threaded rod 402 is threadedly connected to threaded hole 406.

[0027] The top of the telescopic rod 404 is fixedly connected to the bottom of the tensioning table 4. During processing, the fabric needs to pass under tensioning rods 1-2 and 2-3 respectively, allowing them to initially tension the fabric. Then, due to the lifting assembly, the stepper motor 1-401 is activated, causing the threaded rod 402 at the transmission end to rotate. During rotation, the threaded rod 402, connected to the threaded hole 406, drives the telescopic rod 404 to rise. This rise, in turn, lifts the tensioning table 4, providing support for the fabric and causing it to become tensioned. This invention, through the rising of the tensioning table 4, enables tensioning operations on different types of fabric. Combined with tensioning rods 1-2 and 2-3, it effectively prevents fabric curling during tensioning, improving fabric flatness and facilitating cutting operations.

[0028] Furthermore, a material roll 5 is placed on the top of the tensioning base 1, and a fixing component for fixing the material roll 5 is provided on the top of the tensioning base 1. The fixing component includes a placement groove 501, an electric push rod 502, and a clamping block 503.

[0029] The placement groove 501 is opened on the top of the tensioning base 1. The electric push rod 502 is fixedly installed at the front and rear ends of the tensioning base 1. The telescopic end of the electric push rod 502 extends into the interior of the placement groove 501. The clamping block 503 is fixedly installed at the telescopic end of the electric push rod 502.

[0030] The fabric roll 5 is located to the left of the tensioning rod 2. The fixing assembly is designed so that when the worker places the fabric roll 5 containing the fabric into the placement slot 501, they activate the electric push rod 502. This causes the telescopic end of the electric push rod 502 to extend the clamping block 503, thereby clamping and fixing both ends of the fabric roll 5. This invention, by using the electric push rod 502 to drive the clamping block 503 to clamp and fix the fabric roll 5, effectively prevents the fabric roll 5 from rotating during the tensioning process, thus improving the stability of the fabric during tensioning.

[0031] Furthermore, movable slide grooves 6 are provided on the front and rear sides of the top of the tensioning table 4. A movable slider 7 is slidably installed inside the movable slide groove 6. A moving component is provided on the inner wall of the movable slide groove 6 and the bottom of the movable slider 7. The moving component includes a limiting slide groove 601, a bidirectional lead screw 602, a second stepper motor 603, and a second limiting slider 604. The limiting slide groove 601 is opened on the lower surface of the movable slide groove 6, and the bidirectional lead screw 602 is rotatably connected inside the limiting slide groove 601.

[0032] Stepper motor 2 603 is fixedly installed at the rear end of tensioning table 4, and the transmission end of stepper motor 2 603 is connected to the bidirectional lead screw 602. Limiting slider 2 604 is fixedly installed at the bottom of movable slider 7, and limiting slider 2 604 is threadedly connected to bidirectional lead screw 602.

[0033] The second limiting slider 604 is adapted to the limiting slide groove 601. The moving component is set so that by starting the second stepper motor 603, the transmission end of the second stepper motor 603 drives the bidirectional lead screw 602 to rotate. During the rotation of the bidirectional lead screw 602, due to the threaded connection between the second limiting slider 604 and the bidirectional lead screw 602, the second limiting slider 604 and the moving slider 7 are moved.

[0034] Furthermore, a clamping assembly is provided on the top of the movable slider 7. The clamping assembly includes a limiting post 701, an electric push rod 702, a clamping plate 703, and a rubber pad 704. The limiting post 701 is fixedly connected to the top of the movable slider 7 in a parallel arrangement. The electric push rod 702 is fixedly installed on the top of the movable slider 7 and located between the limiting posts 701. The clamping plate 703 is movably sleeved on the outside of the limiting post 701. The rubber pad 704 is fixedly installed on the bottom of the clamping plate 703.

[0035] The top of the telescopic end of the electric push rod 702 is fixedly connected to the clamping plate 703. The rubber pad 704 can increase the friction with the fabric surface and improve the stability of the fabric clamping. The clamping component is set so that by activating the electric push rod 702, the electric push rod 702 drives the clamping plate 703 to descend. During the descent of the clamping plate 703, the rubber pad 704 can clamp the side of the fabric. Then, in conjunction with the moving component, the width of the fabric can be tensioned.

[0036] Furthermore, a support column 8 is fixedly installed at the bottom of the tensioning base 1, and an anti-slip pad 9 is fixedly installed at the bottom of the support column 8. A take-up roller 10 is rotatably connected to the top of the tensioning base 1, and a rotary motor 11 is fixedly installed at the rear end of the tensioning base 1. The drive end of the rotary motor 11 is connected to the take-up roller 10.

[0037] The anti-slip mat 9 increases friction with the placement surface, improving the safety and stability of placement. The winding roller 10 is located to the right of the tension rod 3. The installation of the winding roller 10 enables the fabric to be wound up. The installation of the rotary motor 11 improves the ease of rotation of the winding roller 10.

[0038] In summary:

[0039] In use, the operator first places the roll 5 containing the fabric inside the placement groove 501, and then passes the fabric through the bottom of the tension rod 2, the top of the tensioning table 4, and the bottom of the tension rod 3 in sequence, and then fixes it to the take-up roller 10.

[0040] When cutting is required later, the staff first activates the electric push rod 502, which causes the telescopic end of the electric push rod 502 to drive the clamping block 503 to extend, thereby clamping and fixing the two ends of the material roll 5 respectively.

[0041] Next, start the stepper motor 401, which drives the threaded rod 402 at the transmission end to rotate. During the rotation, the threaded rod 402 is connected to the threaded hole 406, which drives the telescopic rod 404 to rise. During the rise, the telescopic rod 404 drives the tensioning table 4 to rise, thereby allowing the tensioning table 4 to support the fabric above and tension the fabric.

[0042] Next, the electric push rod 702 is activated, causing the clamping plate 703 to descend. During the descent of the clamping plate 703, the rubber pad 704 clamps the side of the fabric. Then, the stepper motor 603 is activated, causing the transmission end of the stepper motor 603 to rotate the bidirectional lead screw 602. During the rotation of the bidirectional lead screw 602, due to the threaded connection between the limit slider 604 and the bidirectional lead screw 602, the limit slider 604 and the moving slider 7 are moved, thereby completing the tensioning of the wide side of the fabric.

[0043] Finally, the staff can cut the tensioned fabric. After cutting, by activating the electric push rod 502, the fixing of the fabric roll 5 is closed, and then the rotary motor 11 is activated to drive the take-up roller 10, thereby completing the take-up of the remaining fabric and conveying the complete fabric roll 5 to the top of the tensioning table 4 for the next cut.

[0044] 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 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 claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An automatic tensioning mechanism for shoe upper processing, comprising a tensioning base (1), characterized in that, Tensioning rod 1 (2) is fixedly installed on the top of the tensioning base (1), and tensioning rod 2 (3) is fixedly installed on the top of the tensioning base (1). A tensioning platform (4) is movably installed between tensioning rod 2 (3) and tensioning rod 1 (2) and located on the top of the tensioning base (1). A lifting assembly is provided at the bottom of the tensioning platform (4). The lifting assembly includes a stepper motor 1 (401), a threaded rod (402), a sleeve rod (403), a telescopic rod (404), a limiting slider 1 (405), and a threaded hole (406). The stepper motor 1 (401) is fixedly installed on the top of the tensioning base (1). The threaded rod (402) is fixedly installed at the bottom of the tensioning base (1), and is fixedly connected to the transmission end of the stepper motor (401) and extends through to the top of the tensioning base (1). The sleeve rod (403) is fixedly installed inside the top of the tensioning base (1). The telescopic rod (404) is movably sleeved inside the sleeve rod (403). The limiting slider (405) is fixedly installed on the side surface of the telescopic rod (404). The threaded hole (406) is opened at the bottom of the telescopic rod (404). The threaded rod (402) is threadedly connected to the threaded hole (406).

2. The automatic tensioning mechanism for shoe upper processing according to claim 1, characterized in that, The tensioning base (1) has a material roll (5) placed on top. The tensioning base (1) has a fixing component for fixing the material roll (5) on top. The fixing component includes a placement groove (501), an electric push rod (502), and a clamping block (503).

3. The automatic tensioning mechanism for shoe upper processing according to claim 2, characterized in that, The placement slot (501) is opened on the top of the tensioning base (1). The electric push rod (502) is fixedly installed at the front and rear ends of the tensioning base (1). The telescopic end of the electric push rod (502) extends into the interior of the placement slot (501). The clamping block (503) is fixedly installed at the telescopic end of the electric push rod (502).

4. The automatic tensioning mechanism for shoe upper processing according to claim 1, characterized in that, The tensioning table (4) has movable slide grooves (6) on the front and rear sides of the top. A movable slider (7) is slidably installed inside the movable slide groove (6). A moving component is provided on the inner wall of the movable slide groove (6) and the bottom of the movable slider (7). The moving component includes a limiting slide groove (601), a bidirectional lead screw (602), a second stepper motor (603), and a second limiting slider (604). The limiting slide groove (601) is opened on the lower surface of the movable slide groove (6). The bidirectional lead screw (602) is rotatably connected to the inside of the limiting slide groove (601).

5. An automatic tensioning mechanism for shoe upper processing according to claim 4, characterized in that, The second stepper motor (603) is fixedly installed at the rear end of the tensioning table (4), and the transmission end of the second stepper motor (603) is connected to the bidirectional lead screw (602). The second limiting slider (604) is fixedly installed at the bottom of the moving slider (7), and the second limiting slider (604) is threadedly connected to the bidirectional lead screw (602).

6. An automatic tensioning mechanism for shoe upper processing according to claim 4, characterized in that, The top of the movable slider (7) is provided with a clamping assembly, which includes a limiting post (701), an electric push rod (702), a clamping plate (703), and a rubber pad (704). The limiting post (701) is fixedly connected to the top of the movable slider (7) in a parallel arrangement. The electric push rod (702) is fixedly installed on the top of the movable slider (7) and located between the limiting posts (701). The clamping plate (703) is movably sleeved on the outside of the limiting post (701). The rubber pad (704) is fixedly installed on the bottom of the clamping plate (703).

7. The automatic tensioning mechanism for shoe upper processing according to claim 1, characterized in that, A support column (8) is fixedly installed at the bottom of the tensioning base (1), and an anti-slip pad (9) is fixedly installed at the bottom of the support column (8). A take-up roller (10) is rotatably connected to the top of the tensioning base (1), and a rotary motor (11) is fixedly installed at the rear end of the tensioning base (1). The drive end of the rotary motor (11) is connected to the take-up roller (10) in a drive connection.

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