Vamp production sewing device

Abstract

The utility model relates to a vamp production sewing device which comprises a working table, a rotatable rotating table is arranged at the upper end of the working table, and the lower end of the rotating table is connected with a driving assembly located on the lower end face of the working table to drive the rotating table to rotate. The two positioning assemblies used for positioning the vamps are symmetrically installed at the upper end of the rotating table and distributed on the two sides of the rotating table in the length direction, the two vamps can be positioned at the same time, seamless connection continuous operation is achieved, and the production period is effectively shortened. A sewing assembly is arranged on the side, away from the operation end, above the workbench, and a sewing needle of the sewing machine head is vertically downward. The upper end of the sewing machine head is connected with the vertical moving assembly through the fixing base, the upper end of the fixing base is connected with the horizontal moving assembly through the sliding block base, the sliding block base is installed on the horizontal moving assembly in a sliding mode, the sewing machine head is driven to move in multiple dimensions, the complex sewing requirement of multiple spliced vamps is met, and the product quality is improved.

Description

Technical Field

[0001] This utility model relates to the field of shoe upper processing equipment technology, and in particular to a shoe upper production sewing device. Background Technology

[0002] In the shoe upper production process, the sewing process is one of the key steps. Traditional shoe upper sewing mostly relies on manual operation of sewing machine heads, which is not only inefficient but also prone to uneven stitches and low sewing precision due to the instability of manual operation, affecting the quality and appearance of the shoe upper. Although some automated sewing equipment exists, shoe upper sewing involves the splicing of multiple pieces, and the splicing of shoe uppers wastes a lot of time, resulting in low production efficiency. For example, CN207870433U discloses a shoe upper sewing device, including a frame, a sewing machine, and a mounting frame. The sewing machine is fixed to the frame, and the mounting frame is fixed to the frame with screws. The mounting frame is equipped with two sets of parallel electric slide rails. The moving ends of the two sets of electric slide rails are equipped with sliding plates that can move horizontally with them. The sliding plates are equipped with telescopic motors or cylinders. The telescopic rods of the telescopic motors or cylinders are connected to a rotary drive mechanism that moves up and down with them via a support frame. The rotating shaft of the rotary drive mechanism is connected to a turntable for placing the shoe upper to be sewn via a coupling. When the rotating shaft of the rotary drive mechanism rotates, it drives the turntable to rotate. This utility model uses electric slide rails to move the shoe upper on the turntable, avoiding the sewing needles. It also has the functions of rotating the shoe upper and adjusting its height, greatly reducing manual operation. However, during operation, the shoe upper is still manually placed behind the turntable for sewing, and the process involves turning the turntable and then sewing. Furthermore, one shoe upper must be completed before the next is sewn, resulting in low production efficiency. Therefore, it is necessary to develop a shoe upper production stitching device to address the aforementioned shortcomings. Utility Model Content

[0003] The purpose of this invention is to provide a shoe upper production sewing device. Through the design of a rotary table, combined with symmetrical positioning components on both sides, it can simultaneously position two shoe upper pieces, achieving seamless continuous operation, shortening the production cycle, and significantly improving production efficiency. Within the sewing component, the sewing machine head is driven to move in multiple dimensions, allowing it to reach different positions for sewing operations, adapting to the complex sewing needs of multi-piece shoe uppers and improving product quality.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0005] This utility model discloses a shoe upper production sewing device, including a worktable. A rotating platform is provided at the upper end of the worktable, rotatably mounted on the upper surface of the worktable. A driving assembly for rotating the rotating platform is located at the lower end of the worktable. A positioning assembly for positioning the shoe upper is provided at the upper end of the rotating platform; two positioning assemblies are symmetrically installed on both sides of the rotating platform along its length. A sewing assembly is located above the worktable, on one side of the worktable and away from the operating end. The sewing assembly includes a sewing machine head with a vertically downward-pointing sewing needle. A fixed seat is provided at the upper end of the sewing machine head, and a vertically moving component is installed within the fixed seat. The sewing machine head is fixedly mounted at the lower end of the vertically moving component. A slider seat is provided at the upper end of the fixed seat, and a horizontally moving component is provided at the upper end of the slider seat. The slider seat is slidably mounted on the horizontally moving component.

[0006] Preferably, the drive assembly includes a slewing bearing, a first gear, and a first motor. The worktable is provided with a relief groove for placing the slewing bearing. The inner side of the slewing bearing is fixedly installed in the relief groove. The outer ring of the slewing bearing is fixedly connected to the rotary table. The first gear cooperates with the slewing bearing. The first gear is fixed on the output shaft of the first motor. The first motor is fixed at the lower end of the worktable. The first motor drives the first gear to rotate, thereby driving the rotary table at the upper end of the slewing bearing to rotate.

[0007] Preferably, the positioning assembly includes a positioning plate, a pressure plate, a rotating frame, a mounting plate, and a cylinder. Two mounting plates are provided and vertically fixed to the side of the rotating platform near the rotation center. A rotating frame is provided between the two mounting plates. The rear end of the rotating frame is rotatably connected to the mounting plate via a rotating shaft, which is fixedly connected to the rotating frame. The front end of the rotating frame has two support legs, each with a pressure plate fixedly mounted at its front end. A positioning plate is provided at the lower end of the pressure plate. The positioning plate is detachably mounted on the rotating platform, abutting against the pressure plate. A cylinder is located above the rear end of the rotating frame. A support column is vertically mounted at the center of the rotating platform, with a support plate mounted at its upper end. The cylinder is vertically mounted on the upper surface of the support plate. The output end of the cylinder passes through the support plate and is hinged to the rear end of the rotating frame. When the output end of the cylinder moves downwards, the rotating frame rotates via the rotating shaft. A square groove is provided on the rotating platform to facilitate the rotation of the rotating frame, and a tension spring connecting the rotating frame and the rotating platform is installed in the square groove.

[0008] Preferably, the horizontal moving component includes a vertical moving component and a horizontal moving component, the vertical moving component and the horizontal moving component are arranged perpendicular to each other, the vertical moving component is located above the horizontal moving component, the slider seat is installed at the intersection of the vertical moving component and the horizontal moving component, and the slider seat is slidably connected to the vertical moving component and the horizontal moving component respectively.

[0009] Preferably, the longitudinal movement assembly includes a first upright plate, a first sliding plate, a first lead screw, a first guide rod, a second motor, and a first fixed plate. The first upright plate is vertically fixed to the front end face of the workbench in the width direction and away from the operating end. The upper end of the first upright plate is provided with a horizontal sliding groove. The first sliding plate is slidably installed in the sliding groove. The first sliding plate is arranged parallel to the first fixed plate. A first lead screw and a first guide rod are provided between the first sliding plate and the first fixed plate. The first lead screw is arranged between the first sliding plate and the first fixed plate and is rotatably connected to the first sliding plate and the first fixed plate. A first guide rod is provided on both sides of the first lead screw. The two first guide rods are parallel to the first lead screw. The two ends of the first guide rod are fixed to the first sliding plate and the first fixed plate, respectively. One end of the first lead screw extending out of the first fixed plate is fixedly connected to the output shaft of the second motor. The second motor is fixed to the outside of the first fixed plate.

[0010] Preferably, the lateral movement assembly includes a second upright plate, a second fixed plate, a second lead screw, a second guide rod, and a third motor. Two second upright plates are provided, each vertically fixed to one side of the worktable along its length and near the end of the first upright plate. A guide rail is provided at the lower end of each second upright plate, allowing the second upright plate to slide along the guide rail on both sides of the worktable. A second fixed plate is fixedly mounted on the top of each of the two second upright plates. A second lead screw and a second guide rod are provided between the two second fixed plates. The second lead screw is positioned between the two second fixed plates, with both ends rotatably connected to the second fixed plates. Second guide rods are provided on both sides of the second lead screw, and the two second guide rods are parallel to the second lead screw. Both ends of the second guide rods are fixedly connected to the second fixed plates. One end of the second lead screw extending out of one of the second fixed plates is fixedly connected to the output shaft of the third motor. The third motor is fixed to the outside of the second fixed plate.

[0011] Preferably, the vertical moving component includes a second gear, a rack, and a fourth motor. The rack is vertically mounted in the fixed base and slidably connected to the fixed base. The rack meshes with the second gear, which is located on one side of the rack. The second gear is fixedly mounted on the output shaft of the fourth motor. The fourth motor is fixed to the outside of the fixed base, and the output shaft of the fourth motor is horizontally arranged and perpendicular to the axis of the second gear.

[0012] Preferably, the bottom surface of the pressure plate is provided with an elastic anti-slip layer, which is made of rubber or silicone material.

[0013] Compared with the prior art, the beneficial technical effects of this utility model are as follows:

[0014] This utility model relates to a shoe upper production and sewing device. Through a rotating table design and symmetrical positioning components on both sides, it can simultaneously position two shoe uppers. While one shoe upper is being sewn, the operator can prepare for the placement and positioning of the next shoe upper on the other side, achieving seamless continuous operation. This avoids the wasted time of waiting for a single shoe upper to be sewn before proceeding to the next operation, greatly shortening the production cycle and significantly improving the production efficiency of shoe upper sewing. The sewing components include a horizontal movement component comprising vertically arranged longitudinal and transverse movement components, enabling precise multi-dimensional movement of the sewing machine head in the horizontal direction. The vertical movement component, through the cooperation of a second gear, rack, and fourth motor, precisely controls the up-and-down movement of the sewing machine head, allowing it to flexibly and accurately reach different positions for sewing operations. This adapts to the complex sewing needs of multi-piece shoe uppers, further improving production efficiency and product quality. The elastic anti-slip layer on the bottom surface of the pressure plate in the positioning component is made of rubber or silicone material, effectively preventing the shoe upper from slipping during sewing and avoiding damage to the shoe upper material. Meanwhile, the positioning and release of the shoe upper are achieved through automated components such as cylinders, reducing the inconvenience and safety hazards caused by frequent manual operation, making the entire operation process more convenient and safer. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings.

[0016] Figure 1 This is a three-dimensional structural diagram of the shoe upper production sewing device of this utility model;

[0017] Figure 2 This is a schematic diagram of the main structure of the shoe upper production sewing device of this utility model;

[0018] Figure 3 This is a left-side structural schematic diagram of the shoe upper production sewing device of this utility model;

[0019] Figure 4 This is a top view schematic diagram of the shoe upper production sewing device of this utility model;

[0020] Figure 5 for Figure 3 A schematic diagram of a local structure in the image;

[0021] Figure 6 This is a schematic diagram of the vertically moving component structure.

[0022] Explanation of reference numerals in the attached drawings: 1. Worktable; 2. Rotary table; 3. Drive assembly; 301. Rotary bearing; 302. First gear; 303. First motor; 4. Positioning assembly; 401. Positioning plate; 402. Pressure plate; 403. Rotating frame; 404. Mounting plate; 405. Cylinder; 406. Rotating shaft; 407. Support column; 408. Support plate; 409. Tension spring; 5. Sewing machine head; 6. Fixed base; 7. Vertical movement assembly; 701. Second... 702. Gear; 703. Rack; 704. Fourth motor; 8. Slider seat; 9. Horizontal movement assembly; 91. Longitudinal movement assembly; 915. First upright plate; 916. First sliding plate; 917. First lead screw; 918. First guide rod; 919. Second motor; 910. First fixed plate; 92. Lateral movement assembly; 921. Second upright plate; 922. Second fixed plate; 923. Second lead screw; 924. Second guide rod; 925. Third motor. Detailed Implementation

[0023] The core of this invention is to provide a shoe upper production sewing device. Through the design of a rotary table, combined with symmetrical positioning components on both sides, it can simultaneously position two shoe upper pieces, achieving seamless continuous operation, shortening the production cycle, and significantly improving production efficiency. Within the sewing component, the sewing machine head is driven to move in multiple dimensions, allowing it to reach different positions for sewing operations, adapting to the complex sewing needs of multi-piece shoe uppers and improving product quality.

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present utility model, and not all of them. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0026] Refer to the attached diagram. Figure 1 This is a three-dimensional structural diagram of the shoe upper production sewing device of this utility model; Figure 2 This is a schematic diagram of the main structure of the shoe upper production sewing device of this utility model; Figure 3 This is a left-side structural schematic diagram of the shoe upper production sewing device of this utility model; Figure 4 This is a top view schematic diagram of the shoe upper production sewing device of this utility model; Figure 5 for Figure 3 A schematic diagram of a local structure in the image; Figure 6 This is a schematic diagram of the vertically moving component structure.

[0027] In one specific implementation, such as Figures 1-6 As shown, a shoe upper production sewing device includes a worktable 1, a rotary table 2 at the upper end of the worktable 1, the rotary table 2 being rotatably mounted on the upper surface of the worktable 1, a drive assembly 3 at the lower end of the rotary table 2 for driving the rotary table 2 to rotate, the drive assembly 3 being located on the lower surface of the worktable 1; a positioning assembly 4 for positioning the shoe upper at the upper end of the rotary table 2, two positioning assemblies 4 being provided and symmetrically mounted on both sides of the length direction of the rotary table 2; a sewing assembly is provided above the worktable 1, the sewing assembly being located on one side of the worktable 1 and away from the operating end, the sewing assembly including a sewing machine head 5, the sewing needle of the sewing machine head 5 being vertically downward, a fixed seat 6 at the upper end of the sewing machine head 5, a vertical moving assembly 7 being installed in the fixed seat 6, the sewing machine head 5 being fixedly mounted on the lower end of the vertical moving assembly 7, a slider seat 8 at the upper end of the fixed seat 6, a horizontal moving assembly 9 at the upper end of the slider seat 8, the slider seat 8 being slidably mounted on the horizontal moving assembly 9.

[0028] In one specific implementation, such as Figures 1-6As shown, the drive assembly 3 includes a slewing bearing 301, a first gear 302, and a first motor 303. The worktable 1 has a recess for housing the slewing bearing 301, which is fixedly installed in the recess with screws. The outer side of the slewing bearing 301 is fixedly connected to the rotary table 2 with screws. The outer side of the slewing bearing 301 engages with the first gear 302, which is fixed to the output shaft of the first motor 303. The first motor 303 is fixed to the lower end of the worktable 1, driving the first gear 302 to rotate, thereby rotating the rotary table 2 above the slewing bearing 301. Using the slewing bearing 301 to drive the rotary table 2 ensures smooth and reliable rotation of the rotary table 2, providing a stable worktable 1 for sewing the shoe upper.

[0029] In one specific implementation, such as Figures 1-6 As shown, the positioning component 4 includes a positioning plate 401, a pressure plate 402, a rotating frame 403, a mounting plate 404, and a cylinder 405. Two mounting plates 404 are vertically fixed to the side of the rotating table 2 near the rotation center. A rotating frame 403 is positioned between the two mounting plates 404. The rear end of the rotating frame 403 is rotatably connected to the mounting plates 404 via a rotating shaft 406. Both ends of the rotating shaft 406 are installed in pre-set shaft holes in the mounting plates 404 via bearings 301, ensuring flexible rotation of the rotating frame 403. The rotating shaft 406 and the rotating frame 403 are fixedly connected by a key to prevent relative rotation. Two support legs are provided at the front end of the rotating frame 403, and a pressure plate 402 is fixedly mounted at the front end of each support leg. An elastic anti-slip layer, made of highly elastic rubber material and bonded with strong adhesive, is adhered to the bottom surface of the pressure plate 402. The layer is approximately 3mm thick and has a fine anti-slip texture to enhance friction against the shoe surface. A positioning plate 401 is provided at the lower end of the pressure plate 402, and the positioning plate 401 abuts against the pressure plate 402. The shoe upper is installed on the positioning plate 401. The positioning plate 401 and the rotating table 2 are detachably connected by screws. When sewing different bevels, the appropriate positioning plate 401 can be replaced to ensure accurate positioning of the shoe upper. A cylinder 405 is provided above the rear end of the rotating frame 403. A support column 407 is vertically installed at the center of the rotating table 2. A support plate 408 is installed at the upper end of the support column 407. The cylinder 405 is vertically installed on the upper end face of the support plate 408. The output end of the cylinder 405 passes through the support plate 408 and is hinged to the rear end of the rotating frame 403. When the output end of the cylinder 405 moves downward, the rotating frame 403 rotates through the rotating shaft 406. The rotating table 2 is provided with a square groove to facilitate the rotation of the rotating frame 403. A tension spring 409 connecting the rotating frame 403 and the rotating table 2 is installed in the square groove. One end of the tension spring 409 is fixed to the bottom of the rotating frame 403, and the other end is fixed to the inner wall of the clearance slot. The tension spring 409 is in a stretched state, providing a reset force for the rotating frame 403. When selecting the tension spring 409, a suitable tension spring 409 should be purchased according to the required reset force of the rotating frame 403.

[0030] When the shoe upper needs to be positioned, the output end of cylinder 405 at the control system extends downward. Based on the lever principle, the rotating frame 403 rotates around the pivot 406, causing the pressure plate 402 at the front to rotate upward and move away from the positioning plate 401. After the shoe upper is placed, cylinder 405 retracts, causing the pressure plate 402 at the front to press the shoe upper downward. Under the action of the tension spring 409, the elastic anti-slip layer adheres tightly to the shoe upper, achieving stable positioning. After the shoe upper is sewn, the output end of cylinder 405 moves downward, the rotating frame 403 rotates, and the pressure plate 402 lifts, allowing the operator to easily pick up and put down the shoe upper. The cylinders 405 here are connected to control valves and operated separately through these valves, working asynchronously.

[0031] In one specific implementation, such as Figures 1-6 As shown, the horizontal moving component 9 includes a longitudinal moving component 91 and a transverse moving component 92. The longitudinal moving component 91 and the transverse moving component 92 are arranged perpendicularly to each other. The longitudinal moving component 91 is located at the upper end of the transverse moving component 92. The slider seat 8 is installed at the intersection of the longitudinal moving component 91 and the transverse moving component 92. The slider seat 8 is slidably connected to the longitudinal moving component 91 and the transverse moving component 92 respectively.

[0032] In one specific implementation, such as Figures 1-6 As shown, the longitudinal moving assembly 91 includes a first upright plate 911, a first sliding plate 912, a first lead screw 913, a first guide rod 914, a second motor 915, and a first fixed plate 916. The first upright plate 911 is vertically fixed to the front end face of the worktable 1 in the width direction and away from the operating end. The upper end of the first upright plate 911 is provided with a horizontal sliding groove. The first sliding plate 912 is slidably installed in the sliding groove. The first sliding plate 912 is arranged parallel to the first fixed plate 916. The first lead screw 913 and the first guide rod 914 are provided between the first sliding plate 912 and the first fixed plate 916. A lead screw 913 is positioned between the first slide plate 912 and the first fixed plate 916 and is rotatably connected to both. First guide rods 914 are provided on both sides of the lead screw 913, parallel to it. The two ends of each guide rod 914 are fixed to the first slide plate 912 and the first fixed plate 916, respectively. The lead screw 913 extends out of the first fixed plate 916 and is fixedly connected to the output shaft of a second motor 915, which is fixed to the outside of the first fixed plate 916. Upon receiving a command from the control system, the second motor 915 rotates, driving the lead screw 913 to rotate. Since the slider seat 8 is connected to the lead screw 913 via a nut pair, under the guidance of the first guide rods 914, the slider seat 8 moves longitudinally along the first guide rods 914, thereby achieving longitudinal position adjustment of the sewing machine head 5.

[0033] In one specific implementation, such as Figures 1-6 As shown, the lateral movement assembly 92 includes a second vertical plate 921, a second fixed plate 922, a second lead screw 923, a second guide rod 924, and a third motor 925. Two second vertical plates 921 are provided, each vertically fixed to one end of the worktable 1 near the first vertical plate 911 along its length. A guide rail is provided at the lower end of each second vertical plate 921, allowing the second vertical plates 921 to slide on both sides of the worktable 1 via the guide rail. A second fixed plate 922 is fixedly installed on the top of each of the two second vertical plates 921, and a second lead screw 923 is provided between the two second fixed plates 922. The second guide rod 924 and the second lead screw 923 are located between the two second fixed plates 922 and are rotatably connected to the second fixed plates 922 at both ends. The two sides of the second lead screw 923 are respectively provided with second guide rods 924, which are parallel to the second lead screw 923. The two ends of the second guide rods 924 are fixedly connected to the second fixed plates 922. The second lead screw 923 extends out of one of the second fixed plates 922 and is fixedly connected to the output shaft of the third motor 925. The third motor 925 is fixed to the outside of the second fixed plate 922.

[0034] After receiving instructions from the control system, the second motor 915 rotates, driving the first lead screw 913 to rotate. Since the slider seat 8 is connected to the first lead screw 913 via a nut pair, under the guidance of the first guide rod 914, the slider seat 8 moves longitudinally along the first guide rod 914, thereby achieving longitudinal position adjustment of the sewing machine head 5. When the third motor 925 operates, it drives the second lead screw 923 to rotate. The slider seat 8, connected to the second lead screw 923 via a nut pair, moves laterally along the guide rail under the guidance of the second guide rod 924. During longitudinal movement, the slider seat 8 drives the second vertical plate 921 to move along the length of the worktable 1; during lateral movement, the first slide plate 912 moves along the groove of the first vertical plate 911 under the drive of the slider seat 8. Combined with the longitudinal movement component 91, the sewing machine head 5 can achieve precise movement to any position on the horizontal plane.

[0035] In one specific implementation, such as Figures 1-6As shown, the vertical moving component 7 includes a second gear 701, a rack 702, and a fourth motor 703. The rack 702 is vertically mounted inside the fixed base 6 and slidably connected to it. The rack 702 meshes with the second gear 701, which is located on one side of the rack 702. The second gear 701 is fixedly mounted on the output shaft of the fourth motor 703, which is fixed to the outside of the fixed base 6. The fourth motor 703 is horizontally positioned and perpendicular to the second gear 701. When the fourth motor 703 rotates, it drives the second gear 701 to rotate, causing the rack 702, which meshes with the second gear 701, to move vertically within the fixed base 6. This enables the sewing machine head 5 to move up and down, precisely controlling the position of the sewing needle and meeting the sewing requirements for shoe uppers of different thicknesses and styles.

[0036] The operation process of this shoe upper production sewing device is as follows: At the start of production, the operator places the shoe upper to be sewn on the positioning plate 401 on one side of the rotating table 2. At this time, the cylinder 405 near the operating table is activated, causing it to press down the rotating frame 403. Under the action of the rotating shaft 406, the rotating frame 403 rotates upward, opening the rotating frame 403 to facilitate the placement of the shoe upper. After the shoe upper is placed, the cylinder 405 is activated again, and the cylinder 405 retracts. Under the action of the tension spring 409, the rotating frame 403 rotates downward, firmly fixing the shoe upper on the rotating table 2. The elastic anti-slip layer on the bottom surface of the pressure plate 402 effectively prevents the shoe upper from sliding. The first motor 303 is started, driving the first gear 302 to rotate, which in turn drives the rotating table 2 outside the rotary bearing 301 to rotate, rotating the side with the shoe upper fixed to below the sewing machine head 5. Simultaneously, the second motor 915 and the third motor 925 of the horizontal moving component 9 start according to a preset program, driving the longitudinal moving component 91 and the transverse moving component 92 to move, causing the slider seat 8 to move horizontally, so that the sewing machine head 5 reaches the appropriate sewing starting position; the fourth motor 703 of the vertical moving component 7 starts, driving the second gear 701 to rotate, and through meshing with the rack 702, causing the sewing machine head 5 to move up and down vertically, adjusting to the appropriate sewing height. The sewing machine head 5 begins to sew the shoe upper. During the sewing process, if it is necessary to change the sewing position, the horizontal moving component 9 and the vertical moving component 7 can work together to precisely control the position of the sewing machine head 5 to adapt to the complex sewing needs of multi-piece spliced ​​shoe uppers. When one side of the shoe upper is sewn, the first motor 303 starts again, driving the rotary table 2 to rotate, rotating the sewn shoe upper to the operating end side for easy removal by the operator; at the same time, the shoe upper placed on the other side rotates to below the sewing machine head 5, repeating the above operation process of positioning, moving the sewing machine head 5 and sewing, to achieve continuous production. Throughout the process, operators can prepare for the placement and positioning of the next shoe upper on the side of the rotating table 2 that is not in the sewing position, which greatly improves production efficiency.

[0037] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. For the apparatus disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the description is relatively simple; relevant parts can be referred to the method section.

[0038] The embodiments described above are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.

Claims

1. A shoe upper production sewing device, comprising a workbench (1), characterized in that: The upper end of the workbench (1) is provided with a rotating platform (2), which is rotatably mounted on the upper surface of the workbench (1). The lower end of the rotating platform (2) is provided with a driving assembly (3) for driving the rotating platform (2) to rotate, which is located on the lower surface of the workbench (1). The upper end of the rotating platform (2) is provided with a positioning assembly (4) for positioning the shoe upper. Two positioning assemblies (4) are provided and symmetrically installed on both sides of the length direction of the rotating platform (2). A sewing assembly is provided above the workbench (1). The sewing assembly is located on the upper surface of the workbench (1). On one side of the workbench (1) and away from the operating end, the sewing assembly includes a sewing machine head (5), the sewing needle of the sewing machine head (5) is set vertically downward, the upper end of the sewing machine head (5) is provided with a fixed seat (6), a vertical moving component (7) is installed in the fixed seat (6), the sewing machine head (5) is fixedly installed at the lower end of the vertical moving component (7), the upper end of the fixed seat (6) is provided with a slider seat (8), the upper end of the slider seat (8) is provided with a horizontal moving component (9), and the slider seat (8) is slidably installed on the horizontal moving component (9).

2. The shoe upper production sewing device according to claim 1, characterized in that: The drive assembly (3) includes a slewing bearing (301), a first gear (302), and a first motor (303). The worktable (1) is provided with a relief groove for placing the slewing bearing (301). The inner side of the slewing bearing (301) is fixedly installed in the relief groove. The outer ring of the slewing bearing (301) is fixedly connected to the rotary table (2). The first gear (302) cooperates with the slewing bearing (301). The first gear (302) is fixed on the output shaft of the first motor (303). The first motor (303) is fixed at the lower end of the worktable (1). The first motor (303) drives the first gear (302) to rotate, thereby driving the rotary table (2) at the upper end of the slewing bearing (301) to rotate.

3. The shoe upper production sewing device according to claim 1, characterized in that: The positioning assembly (4) includes a positioning plate (401), a pressure plate (402), a rotating frame (403), a mounting plate (404), and a cylinder (405). Two mounting plates (404) are provided and vertically fixed to the side of the rotary table (2) near the rotation center. A rotating frame (403) is provided between the two mounting plates (404). The rear end of the rotating frame (403) is rotatably connected to the mounting plate (404) via a rotating shaft (406). The rotating shaft (406) is fixedly connected to the rotating frame (403). Two legs are provided at the front end of the rotating frame (403), and a pressure plate (402) is fixedly mounted at the front end of each leg. A positioning plate (401) is provided at the lower end of the pressure plate (402). The positioning plate (401) is detachably mounted on the rotary table (2). (401) Abuts against the pressure plate (402). A cylinder (405) is provided above the rear end of the rotating frame (403). A support column (407) is vertically installed at the center of the rotating table (2). A support plate (408) is installed at the upper end of the support column (407). The cylinder (405) is vertically installed on the upper end face of the support plate (408). The output end of the cylinder (405) passes through the support plate (408) and is hinged to the rear end of the rotating frame (403). When the output end of the cylinder (405) moves downward, the rotating frame (403) rotates through the rotating shaft (406). A square groove is provided on the rotating table (2) to facilitate the rotation of the rotating frame (403). A tension spring (409) connecting the rotating frame (403) and the rotating table (2) is installed in the square groove.

4. The shoe upper production sewing device according to claim 1, characterized in that: The horizontal moving component (9) includes a longitudinal moving component (91) and a transverse moving component (92), which are arranged perpendicularly to each other. The longitudinal moving component (91) is located above the transverse moving component (92). The slider seat (8) is installed at the intersection of the longitudinal moving component (91) and the transverse moving component (92), and the slider seat (8) is slidably connected to the longitudinal moving component (91) and the transverse moving component (92) respectively.

5. The shoe upper production sewing device according to claim 4, characterized in that: The longitudinal moving assembly (91) includes a first upright plate (911), a first sliding plate (912), a first lead screw (913), a first guide rod (914), a second motor (915), and a first fixed plate (916). The first upright plate (911) is vertically fixed to the front end face of the workbench (1) in the width direction and away from the operating end. The upper end of the first upright plate (911) is provided with a horizontal groove. The first sliding plate (912) is slidably installed in the groove. The first sliding plate (912) is arranged parallel to the first fixed plate (916). The first lead screw (913) and the first guide rod (914) are provided between the first sliding plate (912) and the first fixed plate (916). The first lead screw (913) is disposed between the first slide plate (912) and the first fixed plate (916) and is rotatably connected to the first slide plate (912) and the first fixed plate (916). The two sides of the first lead screw (913) are respectively provided with first guide rods (914). The two first guide rods (914) are parallel to the first lead screw (913). The two ends of the first guide rods (914) are respectively fixed on the first slide plate (912) and the first fixed plate (916). One end of the first lead screw (913) extending out of the first fixed plate (916) is fixedly connected to the output shaft of the second motor (915). The second motor (915) is fixed on the outside of the first fixed plate (916).

6. The shoe upper production sewing device according to claim 5, characterized in that: The lateral movement assembly (92) includes a second vertical plate (921), a second fixed plate (922), a second lead screw (923), a second guide rod (924), and a third motor (925). Two second vertical plates (921) are provided, each vertically fixed to one end of the worktable (1) along its length and close to the first vertical plate (911). A guide rail is provided at the lower end of each second vertical plate (921), and the second vertical plate (921) is slidably mounted on both sides of the worktable (1) via the guide rail. A second fixed plate (922) is fixedly mounted on the top of each of the two second vertical plates (921), and a second lead screw (923) and a second guide rod (925) are provided between the two second fixed plates (922). The second lead screw (923) is disposed between two second fixed plates (922) and its two ends are rotatably connected to the second fixed plates (922). The second lead screw (923) has two second guide rods (924) on its two sides. The two second guide rods (924) are parallel to the second lead screw (923). The two ends of the second guide rods (924) are fixedly connected to the second fixed plates (922). One end of the second lead screw (923) extending out of one of the second fixed plates (922) is fixedly connected to the output shaft of the third motor (925). The third motor (925) is fixed to the outside of the second fixed plate (922).

7. The shoe upper production sewing device according to claim 1, characterized in that: The vertical moving component (7) includes a second gear (701), a rack (702), and a fourth motor (703). The rack (702) is vertically installed in the fixed base (6) and is slidably connected to the fixed base (6). The rack (702) meshes with the second gear (701), and the second gear (701) is located on one side of the rack (702). The second gear (701) is fixedly installed on the output shaft of the fourth motor (703). The fourth motor (703) is fixed to the outside of the fixed base (6). The output shaft of the fourth motor (703) is horizontally arranged and perpendicular to the axis of the second gear (701).

8. The shoe upper production sewing device according to claim 3, characterized in that: The bottom surface of the pressure plate (402) is provided with an elastic anti-slip layer, which is made of rubber or silicone material.

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