A magic tape suture device

Abstract

The utility model discloses a magic tape suture device, including frame, sewing machine, coaxial setting has work surface material disc and basic surface material disc on the frame, the work surface conveying channel and the basic surface conveying channel of parallel setting are set up to the frame on the opposite work surface material disc and basic surface material disc correspondingly, is provided with work surface cutting device on the work surface conveying channel, is provided with basic surface cutting device on the basic surface conveying channel, sets up work surface conveying clamp on the work surface conveying channel side, sets up pre -fixing mechanism and material conveying clamp on the basic surface conveying channel side, and the movable frame is set up below the sewing machine, and the material conveying channel that sets up with basic surface conveying channel alignment is set up on the movable frame, still sets up suture pressure strip mechanism and suture pressure block mechanism on the material conveying channel side. Its advantages are: realize the automatic processing of magic tape, and can suture the four edges of magic tape, can effectively improve the reliability of magic tape product, can improve production efficiency greatly.

Description

Technical Field

[0001] This utility model relates to the field of hook and loop fastening technology, specifically a hook and loop fastening device. Background Technology

[0002] Velcro is a common connecting accessory used in clothing, bags, toys and other products. It is fixed by bonding the male and female sides. In order to improve the rigidity of Velcro products and the ease of use, a base layer needs to be sewn on its working side (male or female side).

[0003] Currently, hook and loop fastener sewing is mostly done manually. Workers take raw materials from a basket, align the working surface with the base surface, stack them together, and then sew them together using a sewing device to complete the production of the hook and loop fastener product. With the continuous increase in labor costs, production costs are constantly rising. Furthermore, due to differences in worker skills and proficiency, the consistency of hook and loop fastener products is easily affected. Manual sewing is costly, labor-intensive, inefficient, and results in inconsistent product quality. Therefore, there is a need to design automated hook and loop fastener sewing equipment. Utility Model Content

[0004] The purpose of this utility model is to overcome the above-mentioned deficiencies and to disclose to the public a Velcro sewing device with a reasonable structure that can automatically align and stack the working surface and the base surface, and can perform four-sided sewing, which can improve production efficiency and product reliability.

[0005] The technical solution of this utility model is implemented as follows:

[0006] A Velcro sewing device includes a frame, on which a sewing machine is mounted. A work fabric tray and a base fabric tray are coaxially mounted on the frame. A work surface conveying channel and a base surface conveying channel are parallel to each other on the frame, corresponding to the work fabric tray and base fabric tray. A work surface cutting device is mounted on each of the work surface and base surface conveying channels. A work surface conveying gripper is located beside each work surface conveying channel. A pre-fixing mechanism and a material conveying gripper are also located beside the base surface conveying channel. A movable frame is located below the sewing machine on the frame. A material conveying channel aligned with the base surface conveying channel is mounted on the movable frame. A sewing pressure strip mechanism and a sewing pressure block mechanism are also located beside the material conveying channel. The sewing pressure strip mechanism includes a long pressure strip capable of lifting, lowering, and translating. The sewing pressure block mechanism is located at the end of the material conveying channel and includes a pressure block capable of lifting.

[0007] Further optimization measures for this technical solution are as follows:

[0008] As an improvement, the working face cutting device includes a first cutting cylinder, a first cutting head connected to the first cutting cylinder, and a first clearance groove provided on the working face conveying channel directly opposite the position of the first cutting head.

[0009] As an improvement, the base surface cutting device includes a second cutting cylinder, a second cutting head is connected to the second cutting cylinder, and a second clearance groove is provided on the base surface conveying channel opposite the position of the second cutting head.

[0010] As an improvement, the working surface conveying gripper includes a translational track fixed on the frame, a first slider slidably engaged on the translational track, a first translational cylinder connected to the first slider, a first lifting cylinder fixed on the slider, a first mounting base connected to the first lifting cylinder, a first fixing head and a second lifting cylinder provided on the first mounting base, and a first movable head cooperating with the first fixing head connected to the second lifting cylinder.

[0011] As an improvement, the pre-fixing mechanism includes a third lifting cylinder, on which a pre-fixing block is fixed, and a limit step is provided at the bottom end of the pre-fixing block.

[0012] As an improvement, the material conveying gripper includes a conveying guide rail fixed to the frame, a second slider slidably fitted on the conveying guide rail, a fourth lifting cylinder fixed on the second slider, a second mounting base connected to the fourth lifting cylinder, a second fixed head and a fifth lifting cylinder provided on the second mounting base, and a second movable head cooperating with the second fixed head connected to the fifth lifting cylinder.

[0013] As an improvement, a connecting plate is connected to the second slider, the connecting plate is connected to the conveyor belt, and the conveyor belt is wound around two rotating wheels, one of which is connected to a drive motor.

[0014] As an improvement, the stitching strip mechanism includes a base connected to a lifting device, a second translation cylinder is provided on the base, the second translation cylinder is connected to the long stitching strip through a sliding block, a slide rail is provided on the base, and the sliding block and the slide rail are slidably engaged.

[0015] As an improvement, the stitching pressure block mechanism further includes an inclined base, on which a drive cylinder is fixed. A connecting block is connected to the drive cylinder, and the pressure block is fixed to the connecting block. By tilting the drive cylinder to control the movement and lifting of the pressure block, the structure is compact and occupies little space.

[0016] As an improvement, the connecting block has an L-shaped structure, and a guide strip is provided on the side of the driving cylinder. The connecting block and the guide strip are slidably engaged. The engagement between the guide strip and the connecting block improves the stability and reliability of the connecting block's movement.

[0017] The advantages of this utility model compared with the prior art are:

[0018] This utility model discloses a hook and loop fastener sewing device with a reasonable structure. It cuts the working surface and the base surface using corresponding cutting devices, then moves the cut working surface onto the base surface via a working surface conveyor gripper, stacking the working surface and base surface together. Finally, a material conveyor gripper transports the stacked working surface and base surface together to the sewing process. During sewing, the long pressure strip of the sewing pressure strip mechanism first holds the material down. As the moving frame moves, the sewing machine sews three sides of the material around the long pressure strip. Then, the pressure block of the sewing block mechanism holds down the tail of the material, the sewing pressure strip mechanism moves, the moving frame moves, and the sewing machine sews the fourth side of the material. This hook and loop fastener sewing device enables automatic processing of hook and loop fasteners and can sew all four sides of the fasteners, effectively improving the reliability of hook and loop fastener products and greatly increasing production efficiency. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of an embodiment of the present utility model;

[0020] Figure 2 yes Figure 1 A 3D structural diagram after removing the main control unit and sewing machine;

[0021] Figure 3 yes Figure 2 A schematic diagram of the structure of the cutting device for the working face;

[0022] Figure 4 yes Figure 2 A schematic diagram of the structure of the base surface cutting device;

[0023] Figure 5 yes Figure 2 Schematic diagram of the structure of the conveyor gripper part of the working face;

[0024] Figure 6 yes Figure 2 A schematic diagram of the pre-fixing mechanism.

[0025] Figure 7 yes Figure 6 Enlarged view of section A in the middle;

[0026] Figure 8 yes Figure 2 A schematic diagram of the structure of the product conveying gripper section;

[0027] Figure 9 yes Figure 2 A schematic diagram of the driving structure of the second slider.

[0028] Figure 10 yes Figure 2 A schematic diagram of the central seam sealing strip mechanism;

[0029] Figure 11 yes Figure 2 A schematic diagram of the central stitching pressure block mechanism;

[0030] Figure 12 This is a schematic diagram of the stitching of the Velcro product manufactured using the four-sided stitching structure of this utility model.

[0031] The names of the reference numerals in the accompanying drawings of this utility model are:

[0032] Line L, Frame 1, Sewing Machine 1a, Working Surface Conveying Channel 11, First Clearance Groove 11a, Base Surface Conveying Channel 12, Second Clearance Groove 12a, Moving Frame 13, Material Conveying Channel 13a, Working Fabric Tray 21, Base Fabric Tray 22, Working Surface Cutting Device 3, First Cutting Cylinder 31, First Cutting Head 32, Base Surface Cutting Device 4, Second Cutting Cylinder 41, Second Cutting Head 42, Working Surface Conveying Gripper 5, Translation Track 51, First Slider 52, First Translation Cylinder 53, First Lifting Cylinder 54, First Mounting Base 55, First Fixed Head 56, Second Lifting Cylinder 57, First Movable Head 58, Pre-fixing mechanism 6, Third lifting cylinder 61, Pre-fixing block 62, Limiting step 62a, Material conveying gripper 7, Conveying guide rail 71, Second slider 72, Connecting plate 72a, Conveyor belt 72b, Rotating wheel 72c, Drive motor 72d, Fourth lifting cylinder 73, Second mounting base 74, Second fixing head 75, Fifth lifting cylinder 76, Second movable head 77, Sewing pressure strip mechanism 8, Base 81, Second translation cylinder 82, Long pressure strip 83, Sliding block 84, Slide rail 85, Sewing pressure block mechanism 9, Pressure block 91, Inclined base 92, Drive cylinder 93, Guide bar 93a, Connecting block 94. Detailed Implementation

[0033] The present invention will be further described in detail below with reference to the accompanying drawings:

[0034] The following description is intended to disclose the present invention so that those skilled in the art can implement it. The preferred embodiments described below are merely examples, and other obvious modifications will be apparent to those skilled in the art. The basic principles of the present invention defined in the following description can be used in other embodiments, modifications, improvements, equivalents, and other technical solutions that do not depart from the spirit and scope of the present invention.

[0035] Those skilled in the art should understand that in the disclosure of this utility model, the terms "longitudinal", "lateral", "up", "down", "left", "right", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or position based on the orientation or positional relationship shown in the accompanying drawings. They are only for the purpose of simplifying the description of this utility model and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the above terms should not be construed as limitations on this utility model.

[0036] It is understood that the term "a" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element can be one, while in another embodiment, the number of the element can be multiple, and the term "a" should not be understood as a limitation on the number.

[0037] like Figures 1 to 11 As shown, a Velcro sewing device includes a frame 1, on which a sewing machine 1a is mounted. A work fabric tray 21 and a base fabric tray 22 are coaxially mounted on the frame 1. A work surface conveying channel 11 and a base surface conveying channel 12 are arranged parallel to each other on the frame 1, corresponding to the work fabric tray 21 and base fabric tray 22. A work surface cutting device 3 is mounted on the work surface conveying channel 11, and a base surface cutting device 4 is mounted on the base surface conveying channel 12. A work surface conveying gripper 5 is located beside the work surface conveying channel 11. A pre-fixing mechanism 6 and a material conveying gripper 7 are provided beside the surface conveying channel 12. The frame 1 is located below the sewing machine 1a and is provided with a movable frame 13. The movable frame 13 is provided with a material conveying channel 13a that is aligned with the surface conveying channel 12. A sewing pressing strip mechanism 8 and a sewing pressing block mechanism 9 are also provided beside the material conveying channel 13a. The sewing pressing strip mechanism 8 includes a long pressing strip 83 that can be raised, lowered and translated. The sewing pressing block mechanism 9 is located at the end of the material conveying channel 13a and includes a pressing block 91 that can be raised and lowered.

[0038] The working face cutting device 3 includes a first cutting cylinder 31, a first cutting head 32 connected to the first cutting cylinder 31, and a first clearance groove 11a provided on the working face conveying channel 11 directly opposite the position of the first cutting head 32.

[0039] The base surface cutting device 4 includes a second cutting cylinder 41, a second cutting head 42 connected to the second cutting cylinder 41, and a second clearance groove 12a provided on the base surface conveying channel 12 directly opposite the position of the second cutting head 42.

[0040] The working surface conveying gripper 5 includes a translational track 51 fixed on the frame 1, a first slider 52 slidably engaged on the translational track 51, a first translational cylinder 53 connected to the first slider 52, a first lifting cylinder 54 fixed on the slider 52, a first mounting base 55 connected to the first lifting cylinder 54, a first fixing head 56 and a second lifting cylinder 57 provided on the first mounting base 55, and a first movable head 58 cooperating with the first fixing head 56 connected to the second lifting cylinder 57.

[0041] The pre-fixing mechanism 6 includes a third lifting cylinder 61, on which a pre-fixing block 62 is fixed, and a limit step 62a is provided at the bottom end of the pre-fixing block 62.

[0042] The material conveying gripper 7 includes a conveying guide rail 71 fixed to the frame 1. A second slider 72 is slidably fitted on the conveying guide rail 71. A fourth lifting cylinder 73 is fixed on the second slider 72. A second mounting base 74 is connected to the fourth lifting cylinder 73. A second fixed head 75 and a fifth lifting cylinder 76 are provided on the second mounting base 74. A second movable head 77 that cooperates with the second fixed head 75 is connected to the fifth lifting cylinder 76. The conveying guide rail 71 extends to the side of the material conveying channel 13a of the moving frame 13. The function of the material conveying gripper 7 is to convey the working surfaces and base surfaces stacked together in the previous process into the material conveying channel 13a of the moving frame 13, that is, to convey the materials (working surfaces and base surfaces) to the sewing process for sewing.

[0043] The second slider 72 is connected to a connecting plate 72a, which is connected to a conveyor belt 72b. The conveyor belt 72b is wound around two rotating wheels 72c, one of which is connected to a drive motor 72d.

[0044] The stitching strip mechanism 8 includes a base 81 connected to a lifting device. A second translation cylinder 82 is mounted on the base 81. The second translation cylinder 82 is connected to the long stitching strip 83 via a sliding block 84. A slide rail 85 is mounted on the base 81, and the sliding block 84 slides in conjunction with the slide rail 85. The lifting device is preferably a cylinder.

[0045] The stitching pressure block mechanism 9 also includes an inclined base 92, on which a driving cylinder 93 is fixed, and a connecting block 94 is connected to the driving cylinder 93. The pressure block 91 is fixed to the connecting block 94.

[0046] The connecting block 94 has an L-shaped structure, and a guide strip 93a is provided on the side of the driving cylinder 93. The connecting block 94 and the guide strip 93a are slidably engaged. By engaging the long side of the L-shaped structure of the connecting block 94 with the guide strip 93a, the movement of the connecting block 94 can be made more stable, thereby making the movement of the pressure block 91 more stable.

[0047] Working principle:

[0048] The working face webbing is placed on the working face fabric tray 21, and the base face webbing is placed on the base face fabric tray 22. The working face fabric tray 21 and the base face fabric tray 22 are coaxially arranged so that the working face and the base face are pulled out to the same length. The working face is conveyed on the working face conveying channel 11 and cut by the working face cutting device 3. When cutting the working face, the working face conveying jaws 5 clamp the end of the working face. The base face is conveyed on the base face conveying channel 12 and cut by the base face cutting device 4. When cutting the base face, the pre-fixing mechanism 6 presses down on the end face of the base face.

[0049] The working surface conveying gripper 5 clamps the cut working surface. The working surface conveying gripper 5 controls the lifting and lowering of the first movable head 58 through the second lifting cylinder 57. The working surface is clamped by the cooperation of the first movable head 58 and the first fixed head 56. The first translation cylinder 53 drives the first slider 52 to move along the translation track 51, realizing the overall translation of the gripper, thereby moving the working surface to the base surface conveying channel 12 (at the same time, the third lifting cylinder 61 drives the pre-fixed block 62 to rise to avoid it), aligning the working surface with the base surface, or stacking the working surface on the base surface.

[0050] Then, the material conveying gripper 7 operates, transferring the working surface and the base surface together to the sewing process for sewing. The material conveying gripper 7 controls the lifting and lowering of the second movable head 77 through the fifth lifting cylinder 76. The clamping function is achieved through the cooperation of the second movable head 77 and the second fixed head 75. After the gripper clamps the working surface and the base surface, the drive motor 84 is started to drive the second slider 72 to move along the conveying guide rail 71 to achieve conveying.

[0051] The material conveying channel 13a of the movable frame 13 is aligned with the base surface conveying channel 12. The material conveying gripper 2 conveys the material from the base surface conveying channel 12 to the material conveying channel 13a. During this conveying process, after the sewing strip mechanism 8 is raised as a whole, the second translation cylinder 82 moves the long strip 83 out of the material conveying channel 13a to avoid it. At the same time, the pressing block 91 of the sewing block mechanism 9 is in the raised state.

[0052] After the material is delivered to its position, the sewing pressure strip mechanism 8 operates. The second translation cylinder 82 moves the long pressure strip 83 above the material, and the sewing pressure strip mechanism 8 descends as a whole, using the long pressure strip 83 to fix the material in place. The moving frame 13, along with its various mechanisms (sewing pressure strip mechanism 8, sewing pressure block mechanism 9), moves under the sewing machine 1a, causing the sewing thread to run around the long pressure strip 83, completing the sewing of the three sides of the Velcro. The movement of the moving frame 13 is a conventional structure of automatic sewing equipment and is existing technology; its specific structure will not be described in detail here.

[0053] After the three sides are sewn, the sewing pressure block mechanism 9 operates, driving cylinder 93 to drive pressure block 91 to descend and press down on the tail end of the Velcro. Then, the sewing strip mechanism 8 operates, causing the long pressure strip 83 to move out of the material conveying channel 13a. The moving frame 13 moves again to complete the sewing of the fourth side, forming a closed rectangle with the four-sided sewing line. Since the three sides have already been sewn when the fourth side is sewn, the working surface and the base surface are now fixed together as a whole. Therefore, pressing down only the tail end of the Velcro when sewing the fourth side will not affect the sewing operation. The stitching L of the Velcro sewn using the four-sided sewing structure of this invention is as follows: Figure 12 As shown.

[0054] This completes the stitching of the four sides of the hook and loop fastener product. By repeating the above steps, the hook and loop fastener product can be processed automatically.

[0055] The hook and loop fastener sewing device of this invention can realize the automatic processing of hook and loop fastener products, which can greatly improve production efficiency and can sew the four sides of the hook and loop fastener, thus effectively improving the reliability of the hook and loop fastener products.

[0056] The above are merely preferred embodiments of the present utility model and are not intended to limit the implementation methods and protection scope of the present utility model. Those skilled in the art should realize that any equivalent substitutions and obvious changes made based on the description and illustrations of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A Velcro sewing device, comprising a frame (1) on which a sewing machine (1a) is mounted, characterized in that: The frame (1) is coaxially provided with a working fabric tray (21) and a base fabric tray (22). A parallel working surface conveying channel (11) and a base surface conveying channel (12) are arranged on the frame (1) opposite to the working fabric tray (21) and the base fabric tray (22). A working surface cutting device (3) is provided on the working surface conveying channel (11), and a base surface cutting device (4) is provided on the base surface conveying channel (12). A working surface conveying gripper (5) is provided beside the working surface conveying channel (11), and a pre-fixing mechanism (6) is provided beside the base surface conveying channel (12). The frame (1) is located below the sewing machine (1a) and has a movable frame (13). The movable frame (13) has a material conveying channel (13a) aligned with the base surface conveying channel (12). A sewing pressing strip mechanism (8) and a sewing pressing block mechanism (9) are also provided next to the material conveying channel (13a). The sewing pressing strip mechanism (8) includes a long pressing strip (83) that can be raised, lowered and translated. The sewing pressing block mechanism (9) is located at the end of the material conveying channel (13a) and includes a pressing block (91) that can be raised and lowered.

2. The Velcro sewing device according to claim 1, characterized in that: The working face cutting device (3) includes a first cutting cylinder (31), a first cutting head (32) is connected to the first cutting cylinder (31), and a first clearance groove (11a) is provided on the working face conveying channel (11) opposite to the first cutting head (32).

3. The Velcro sewing device according to claim 1, characterized in that: The base surface cutting device (4) includes a second cutting cylinder (41), a second cutting head (42) is connected to the second cutting cylinder (41), and a second clearance groove (12a) is provided on the base surface conveying channel (12) opposite to the position of the second cutting head (42).

4. The Velcro sewing device according to claim 1, characterized in that: The working surface conveying gripper (5) includes a translation track (51) fixed on the frame (1), a first slider (52) is slidably fitted on the translation track (51), a first translation cylinder (53) is connected to the first slider (52), a first lifting cylinder (54) is fixed on the slider (52), a first mounting base (55) is connected to the first lifting cylinder (54), a first fixing head (56) and a second lifting cylinder (57) are provided on the first mounting base (55), and a first movable head (58) that cooperates with the first fixing head (56) is connected to the second lifting cylinder (57).

5. The Velcro sewing device according to claim 1, characterized in that: The pre-fixing mechanism (6) includes a third lifting cylinder (61), on which a pre-fixing block (62) is fixed, and a limit step (62a) is provided at the bottom end of the pre-fixing block (62).

6. The Velcro sewing device according to claim 1, characterized in that: The material conveying gripper (7) includes a conveying guide rail (71) fixed on the frame (1), a second slider (72) slidably fitted on the conveying guide rail (71), a fourth lifting cylinder (73) fixed on the second slider (72), a second mounting base (74) connected to the fourth lifting cylinder (73), a second fixed head (75) and a fifth lifting cylinder (76) provided on the second mounting base (74), and a second movable head (77) cooperating with the second fixed head (75) connected to the fifth lifting cylinder (76).

7. A Velcro sewing device according to claim 6, characterized in that: The second slider (72) is connected to a connecting plate (72a), which is connected to a conveyor belt (72b). The conveyor belt (72b) is wound around two rotating wheels (72c), one of which is connected to a drive motor (72d).

8. The Velcro sewing device according to claim 1, characterized in that: The stitching strip mechanism (8) includes a base (81) connected to a lifting device. A second translation cylinder (82) is provided on the base (81). The second translation cylinder (82) is connected to the long stitch strip (83) through a slide block (84). A slide rail (85) is provided on the base (81). The slide block (84) and the slide rail (85) are in sliding cooperation.

9. A Velcro sewing device according to claim 1, characterized in that: The stitching pressure block mechanism (9) further includes an inclined base (92), on which a driving cylinder (93) is fixed, and a connecting block (94) is connected to the driving cylinder (93). The pressure block (91) is fixed to the connecting block (94).

10. A Velcro sewing device according to claim 9, characterized in that: The connecting block (94) has an L-shaped structure, and the side of the driving cylinder (93) is provided with a guide strip (93a). The connecting block (94) and the guide strip (93a) are in sliding cooperation.

Images