Novel bottom pocket cloth fixing device of pocket opening machine

Abstract

The utility model discloses a novel bottom pocket cloth fixing device of a pocket opening machine, which comprises a material fixing device of the pocket opening machine, the material fixing device mainly comprises a large pressing frame and a small pressing frame which are provided with processing windows, and the novel bottom pocket cloth fixing device is characterized in that a cloth clamping piece is arranged at the front end of the bottom of the large pressing frame in a swinging manner; an opening and closing cloth clamping opening is formed between the cloth clamping piece and the large pressing frame; according to the bottom pocket cloth fixing device, the bottom pocket cloth is fixed, so that the bottom pocket cloth is kept flat, the bottom pocket cloth directly moves along with the material fixing device, when the material fixing device moves to take materials or sew the materials, the bottom pocket cloth is free of wrinkles and hems, and the bottom pocket cloth is free of wrinkles and hems. The position of the other piece of placed bottom pocket cloth is not interfered, a material containing device in the prior art is omitted, and the device has the advantages of being low in cost, extremely high in stability, high in fabric universality, little in maintenance and convenient and fast to use.

Description

Technical Field

[0001] This utility model relates to the technical field of bag opening machine accessory structure, and in particular to a novel fixing device for the bottom bag fabric of a bag opening machine. Background Technology

[0002] In garment manufacturing, pocket opening machines are essential auxiliary processing machinery, mainly used to create pockets in specific locations on garments for carrying small items such as mobile phones and wallets. The traditional method is to process the pocket opening and zipper separately first, and then sew the zipper or lip onto the pocket opening to complete the pocket opening.

[0003] Currently, regarding pocket sewing technology on the market, existing pocket opening machines encounter two difficulties when sewing pockets. The bottom pocket fabric is under the large pressure frame of the material fixing device. When the large pressure frame of the material fixing device lifts up to pick up the material, two problems arise. First, the bottom pocket fabric is pulled up and pressed down, causing wrinkles. When the large pressure frame moves along the X or Y axis, the bottom pocket fabric will wrinkle. Frequent wrinkles cause the bottom pocket fabric at non-stop edges to be sewn onto the cut piece when sewing the stop line. Second, when the pressure frame moves to pick up the material, the bottom pocket fabric fixed on the cut piece will affect the position of another piece of pocket fabric that has been placed.

[0004] To address the aforementioned shortcomings, utility model patent ZL202220783895.0 discloses a bag fabric catching mechanism for a bag opening machine. By setting a catching panel flush with the bag opening machine table, the catching panel can perform lifting and lateral movements relative to the bag opening machine table. However, the structure using the catching panel is cumbersome in its overall structure and operation, resulting in high costs and difficult maintenance. Now, a new structure has been developed that reduces material costs, has extremely high stability, strong fabric versatility, requires less maintenance, is convenient to use, and reduces overall costs. Utility Model Content

[0005] The purpose of this invention is to provide a novel fixing device for the bottom bag fabric of a bag opening machine, which fixes the bottom bag fabric by feeding the end of the bottom bag fabric onto the material fixing device, thereby simplifying the mechanical structure and configuration and reducing equipment costs.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a novel fixing device for the bottom bag fabric of a bag opening machine, including a material fixing device for the bag opening machine, which is mainly composed of a large pressure frame and a small pressure frame. Processing windows are opened on the large pressure frame and the small pressure frame. A fabric clamping piece is swung at the front end of the bottom of the large pressure frame, and an opening and closing fabric clamping opening is formed between the fabric clamping piece and the large pressure frame.

[0007] The material feeding device is provided below the fabric feeding mechanism, which can feed the end of the bottom bag fabric into the fabric clamping opening.

[0008] Preferably, the fabric feeding mechanism is an air blowing pipe that blows air into the fabric clamping opening.

[0009] Preferably, the fabric feeding mechanism includes a fabric feeding knife and a fabric feeding cylinder, wherein the fabric feeding cylinder is drivenly connected to the fabric feeding knife.

[0010] Preferably, the fabric feeding mechanism includes a lower support plate for placing the bottom bag fabric, and a fabric feeding piece is provided on the side of the lower support plate near the fabric clamping piece, and the corresponding fabric clamping piece is provided with an opening for the fabric feeding piece to pass through.

[0011] Preferably, the fabric clamping piece is connected to a drive cylinder via a connecting rod, and the drive cylinder is pulled by the connecting rod to cause the fabric clamping piece to swing.

[0012] Preferably, the large pressure frame has a fabric clamping guide groove for inserting the bottom bag fabric, and the fabric clamping guide groove is located between the fabric clamping piece and the processing window.

[0013] Preferably, the fabric clamping piece is rotatably fixed on the large pressure frame via a rotating rod, and a sliding groove is provided on the fabric clamping piece. The front end of the connecting rod is slidably engaged with the sliding groove using a locking head.

[0014] The beneficial effects of this utility model are as follows: This utility model utilizes a swing-mounted clamping piece to create an open clamping opening at the front end of the large pressure frame at the bottom. The fabric feeding mechanism feeds the end of the bottom bag fabric to the clamping opening, and then the swinging clamping piece closes the clamping opening, thereby fixing the bottom bag fabric in place and keeping it flat. The bottom bag fabric will also move directly with the material fixing device. When the material fixing device moves to pick up material or sew, the bottom bag fabric has no wrinkles at the seam and does not interfere with the position of another piece of bottom bag fabric. This eliminates the need for the material-collecting device in the prior art, and has the advantages of low cost, extremely high stability, strong fabric versatility, low maintenance, and convenient use. Attached Figure Description

[0015] Figure 1 This is a structural schematic diagram of Embodiment 1 of the present utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the present invention in a downward view.

[0017] Figure 3 This is a schematic diagram of the structure of Embodiment 2 of this utility model;

[0018] Figure 4 This is a schematic diagram of the structure of Embodiment 3 of this utility model;

[0019] Figure 5 This is a schematic diagram illustrating three usage states of this utility model;

[0020] Figure 6 This is a schematic diagram of the driving structure for clamping the fabric piece in this utility model;

[0021] Figure 7A schematic diagram of the connection between the connecting rod and the clamping sheet in this utility model;

[0022] Reference numerals: 1. Material setting device; 2. Large pressure frame; 3. Small pressure frame; 4. Processing window; 5. Fabric clamping piece; 6. Fabric feeding mechanism; 7. Air blowing pipe; 8. Rotating rod; 9. Fabric feeding knife; 10. Fabric feeding cylinder; 11. Lower support plate; 12. Fabric feeding piece; 13. Through port; 14. Connecting rod; 15. Drive cylinder; 16. Fabric clamping guide groove; 17. Slide groove; 18. Locking head; a. Bottom bag fabric. Detailed Implementation

[0023] The following description is only a preferred embodiment of the present utility model. The scope of protection is not limited to this embodiment. All technical solutions that fall within the scope of the present utility model should be protected by the present utility model. It should also be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of the present utility model should also be considered within the scope of protection of the present utility model.

[0024] It should be noted that in this document, relational terms such as first and second are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations.

[0025] The directional terms mentioned in this embodiment, such as "up," "down," "left," and "right," are merely used to help those skilled in the art understand the relationships between various features or parts in conjunction with the accompanying drawings.

[0026] Example 1

[0027] like Figure 1 , Figure 2 , Figure 6 and Figure 7 As shown, this utility model includes a material setting device 1 for a bag opening machine, which mainly consists of a large pressing frame 2 and a small pressing frame 3. Processing windows 4 are opened on the large pressing frame 2 and the small pressing frame 3. The material setting device 1 is set to slide back and forth, left and right, and rise and fall relative to the worktable of the bag opening table. Its specific driving structure is existing technology and will not be described in detail in this embodiment. The front end of the bottom of the large pressing frame 2 is provided with a long strip-shaped fabric clamping piece 5. The front end of the bottom of the large pressing frame 2 refers to the end near the operator. The end of the fabric clamping piece 5 near the operator is rotatably connected to the large pressing frame 2, and the other end near the processing window is the swing end. The swing end of the fabric clamping piece 5 and the large pressing frame 2 form an opening and closing fabric clamping opening.

[0028] Below the material-fixing device 1 is a fabric-feeding mechanism 6, which feeds the end of the bottom bag fabric into the fabric clamping opening. The fabric clamping piece 5 then clamps the bottom bag fabric flatly at the bottom of the large pressure frame 2 for fixation. The fabric-feeding mechanism 6 has various structures; in this embodiment, it is an air-blowing pipe 7 that blows air into the fabric clamping opening. The air-blowing pipe 7 is used to connect to an inflation device such as an air pump, and it has air-blowing holes. The air-blowing pipe 7 blows the end of the bottom bag fabric dangling on the lower support plate, thereby blowing that end into the fabric clamping opening, where it is clamped and fixed by the fabric clamping piece 5. Since the other end of the bottom bag fabric is already sewn to the bag opening, the bottom bag fabric remains flat and directly follows the displacement movement of the material-fixing device. When the material-fixing device moves to pick up material or sew, the bottom bag fabric has no wrinkled seams and does not interfere with the position of another piece of bottom bag fabric, eliminating the need for a material-collecting device in existing technologies and significantly reducing the manufacturing cost of the bag-opening machine.

[0029] Since the material setting device 1 is arranged to move laterally in the bag opening machine, the fabric feeding mechanism 6 can be set below the material setting device 1 in its initial state in the bag opening machine, or it can be set below the bag folding device of the bag opening machine.

[0030] Example 2

[0031] like Figure 1 , Figure 3 , Figure 6 and Figure 7 As shown, the difference between this embodiment and Embodiment 1 lies in the specific structure of the fabric feeding mechanism 6. In this embodiment, the fabric feeding mechanism 6 includes a fabric feeding knife 8 and a fabric feeding cylinder 10 connected to the fabric feeding knife 9. The fabric feeding knife 8 and the fabric feeding cylinder 10 can be arranged laterally in the front-to-back direction or inclined towards the fabric clamping opening. The fabric feeding cylinder 10 drives the fabric feeding knife 9 to insert the end of the bottom bag fabric into the fabric clamping opening, and then the fabric clamping plate 5 clamps the bottom bag fabric flatly at the bottom of the large pressure frame 2 for fixation. Since the material fixing device 1 in the bag opening machine is set in a lifting position, the fabric feeding knife 8 can be slightly lower than the fabric clamping opening. When the large pressure frame 2 descends, the fabric feeding knife 9 will enter the effective range of the fabric clamping opening, thereby smoothly feeding the bottom bag fabric in.

[0032] As a supplement to Embodiments 1 and 2, to make the fabric clamping action smoother, a fabric clamping guide groove 16 is provided on the large pressure frame 2 for inserting the bottom bag fabric. The fabric clamping guide groove 16 is located between the fabric clamping piece 5 and the processing window 4. The fabric clamping guide groove 16 is adjacent to the fabric clamping piece 5. In conjunction with the upper inserting blade (not shown) of the bag opening mechanism, the end of the bottom bag fabric is first inserted into the fabric clamping guide groove 16, thereby facilitating the horizontal insertion or blowing of the remaining part into the fabric clamping opening for fixation.

[0033] The width of the fabric clamping guide groove 16 is approximately more than twice the thickness of the bottom bag fabric, so that the folded bottom bag fabric can pass through. The number of fabric clamping guide grooves 16 can be a single one or two arranged side by side.

[0034] To facilitate the automation and electrification of the bag opening machine, the fabric clamping piece 5 is connected to the drive cylinder 15 via the connecting rod 14. The drive cylinder 15 is pulled by the connecting rod 14 to cause the fabric clamping piece 5 to swing.

[0035] To make the clamping piece 5 swing more flexibly and reliably, the clamping piece 5 is rotatably fixed on the large pressure frame 2 by the rotating rod 8. The large pressure frame 2 has an assembly groove for the rotating rod 8 to be installed. The clamping piece 5 has a sliding groove 17. The front end of the connecting rod 14 is slidably engaged with the sliding groove 17 by the locking head 18.

[0036] Example 3

[0037] like Figure 1 , Figure 4 , Figure 5 , Figure 6 and Figure 7 As shown, the difference between this embodiment and Embodiments 1 and 2 lies in the specific structure of the feeding mechanism 6. In this embodiment, the feeding action of the bottom bag fabric a is completed by the lower support plate 11 of the bag opening machine. In the bag opening machine, the lower support plate 11 is used to hold the bag lip and bag fabric (i.e., the bottom bag fabric), and plays the role of supporting and feeding the material to the material fixing device 1. The feeding mechanism 6 includes the lower support plate 11, and a feeding piece 12 is provided on the side of the lower support plate 11 near the clamping piece 5. In this embodiment, the feeding piece 12 is rectangular, but it can also be of any shape. The corresponding clamping piece 5 is provided with an opening 13 for the feeding piece 12 to pass through. The opening 13 is relatively wide, so that when the lower support plate 11 rises or the clamping piece 5 swings downward, the bottom bag fabric a can pass through and be supported by the feeding piece 12, so that the end of the bottom bag fabric a is located above the clamping piece 5. The clamping piece 5 can complete the clamping and fixing action by swinging upward.

[0038] In order to allow the bottom bag fabric a and the feed sheet 12 to pass smoothly through the opening 13, the feed sheet 12 is spaced out.

[0039] The above embodiments are illustrative of the present invention and are not intended to limit the present invention. Any simple modifications to the present invention are within the protection scope of the present invention.

Claims

1. A novel fixing device for the bottom bag fabric of a bag opening machine, comprising a material fixing device (1) of the bag opening machine, mainly composed of a large pressure frame (2) and a small pressure frame (3), wherein processing windows (4) are opened on the large pressure frame (2) and the small pressure frame (3), characterized in that, The front end of the bottom of the large pressure frame (2) is provided with a fabric clamping piece (5), and the fabric clamping piece (5) and the large pressure frame (2) form an opening and closing fabric clamping opening; The material feeding device (1) is provided with a fabric feeding mechanism (6) below it, which can feed the end of the bottom bag fabric into the fabric clamping opening.

2. The novel fixing device for the bottom bag fabric of a bag opening machine according to claim 1, characterized in that, The fabric feeding mechanism (6) is an air blowing pipe (7) that blows air into the fabric clamping opening.

3. The novel fixing device for the bottom bag fabric of a bag opening machine according to claim 1, characterized in that, The fabric feeding mechanism (6) includes a fabric feeding knife (9) and a fabric feeding cylinder (10), and the fabric feeding cylinder (10) is drivenly connected to the fabric feeding knife (9).

4. A novel fixing device for the bottom bag fabric of a bag opening machine according to claim 1, characterized in that, The fabric feeding mechanism (6) includes a lower support plate (11) for placing the bottom bag fabric. A fabric feeding piece (12) is provided on the side of the lower support plate (11) near the clamping piece (5). The corresponding clamping piece (5) is provided with a passage (13) for the fabric feeding piece (12) to pass through.

5. A novel fixing device for the bottom bag fabric of a bag opening machine according to any one of claims 1 to 4, characterized in that, The clamping piece (5) is connected to the driving cylinder (15) via the connecting rod (14), and the driving cylinder (15) is pulled by the connecting rod (14) to make the clamping piece (5) swing.

6. A novel fixing device for the bottom bag fabric of a bag opening machine according to any one of claims 1 to 4, characterized in that, The large pressure frame (2) has a fabric clamping guide groove (16) for inserting the bottom bag fabric. The fabric clamping guide groove (16) is located between the fabric clamping piece (5) and the processing window (4).

7. A novel fixing device for the bottom bag fabric of a bag opening machine according to claim 5, characterized in that: The clamping piece (5) is rotatably fixed on the large pressure frame (2) via the rotating rod (8). A sliding groove (17) is opened on the clamping piece (5). The front end of the connecting rod (14) is slidably engaged with the sliding groove (17) by means of the locking head (18).

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