A double folding and seaming machine

Abstract

The utility model relates to sewing machine auxiliary part technical field, concretely relates to a double -folding plate edge is with pull cylinder, including mounting panel, folding edge piece and connecting piece, the both sides of folding edge piece and connecting piece are connected and form the spread channel, and the feed inlet and discharge port of spread channel are wide mouth and narrow mouth respectively, the side of folding edge piece and connecting piece is close to wide mouth respectively and is set up with corresponding first through -hole and second through -hole, the first roller is installed to folding edge piece on and is located the top of first through -hole through adjusting part, and the second roller is equipped in second through -hole on connecting piece, and there is the gap that accommodates cloth strip to pass between first roller and second roller, the utility model discloses through the clamping of first cylinder and second cylinder to cloth strip, then drive first cylinder rotation, the surface and cloth strip contact part will produce friction, and the friction between two and cloth strip will drive cloth strip to move, reach the purpose that cloth strip fast crosses double -folding edge pull cylinder is assisted, need not use needle to assist.

Description

Technical Field

[0001] This utility model relates to the field of sewing machine auxiliary parts technology, specifically to a pull tube for double-folded plate edges. Background Technology

[0002] A hemming tool, also known as a seam roller or edge sewing tool, is an auxiliary tool used in various garment, leather, and bag sewing equipment. It is primarily used for sewing various fabrics, including hemming, edge binding, binding, curling, and folding. In the garment manufacturing industry, the hemming tool plays an indispensable role, affecting not only the appearance and function of clothing but also increasing ease of wear. Different types of hemming tools are suitable for different garment styles, sewing machines, and manufacturing processes, making it one of the key tools for improving garment production efficiency and quality.

[0003] When binding the fabric edges, a pull tube structure is needed to fold the binding strips. After folding, the strips are ironed to extend the folded edge and facilitate subsequent sewing. Existing double-fold binding pull tubes require manual feeding of the binding fabric into the pull tube inlet, followed by using a needle-like tool to pull the fabric strip out from the pull tube outlet, and then ironing. This process is cumbersome and laborious, and there is a risk of breakage when using fine needles. Utility Model Content

[0004] This invention addresses the shortcomings of existing technologies by providing a double-folded pull tube that utilizes rolling friction to guide a strip of fabric from the inlet to the outlet of the pull tube.

[0005] To achieve the above technical objectives, this utility model proposes the following technical solution: a double-folded hem pull tube, comprising a mounting plate, a folding piece, and a connecting piece. The two sides of the folding piece and the connecting piece are connected to form a fabric transfer channel. The inlet and outlet of the fabric transfer channel are a wide opening and a narrow opening, respectively. Corresponding first through holes and second through holes are respectively opened on the side of the folding piece and the connecting piece near the wide opening. A first roller shaft is installed on the folding piece above the first through hole through an adjusting component. A second roller shaft is provided on the connecting piece inside the second through hole. There is a gap between the first roller shaft and the second roller shaft to accommodate the fabric strip passing through.

[0006] Furthermore, the adjusting component includes support members located on both sides of the first through hole. A sliding groove is provided on the support member, a spring is provided in the sliding groove and at the bottom of the sliding groove, and a slider is provided in the sliding groove and at the top of the spring. A first roller shaft is rotatably mounted on the slider. A bolt is threadedly connected to the support member and at the top of the sliding groove. When the bolt extends and retracts in the sliding groove, it can cause the slider to rise and fall.

[0007] Furthermore, one end of the first roller is connected to a rotating handle through the slider.

[0008] Furthermore, handles are installed on the mounting plate and on both sides of the connecting piece.

[0009] Furthermore, the upper end face of the second roller is on the same horizontal plane as the upper end face of the connecting piece.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model clamps the fabric strip with the first roller and the second roller, and then drives the first roller to rotate. The surface in contact with the fabric strip will generate friction. The friction between the two rollers and the fabric strip will drive the fabric strip to move, thereby assisting the fabric strip to pass through the double-folded pull tube quickly without the need for needles. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0012] Figure 2 This is a utility model Figure 1 Cross-sectional view of AA.

[0013] In the diagram, 1. Mounting plate; 2. Folded edge piece; 3. Connecting piece; 4. Fabric transfer channel; 5. Wide opening; 6. Narrow opening; 7. First through hole; 8. Second through hole; 9. First roller shaft; 10. Second roller shaft; 11. Support component; 12. Slide groove; 13. Spring; 14. Slider; 15. Bolt component; 16. Rotating handle; 17. Handle. Detailed Implementation

[0014] The following are specific embodiments of the present invention, and the technical solution of the present invention will be further described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0015] like Figure 1 and Figure 2 As shown, this utility model provides a double-folded hem pull tube, including a mounting plate 1, a folding piece 2, and a connecting piece 3. The opposite sides of the folding piece 2 and the connecting piece 3 are connected to form a fabric transfer channel 4. The inlet and outlet of the fabric transfer channel 4 are a wide opening 5 and a narrow opening 6, respectively. The folding piece 2 and the connecting piece 3 are respectively provided with corresponding first through holes 7 and second through holes 8 on the side near the wide opening 5. A first roller shaft 9 is installed on the folding piece 2 above the first through hole 7 through an adjusting component. A second roller shaft 10 is provided on the connecting piece 3 inside the second through hole 8. There is a gap between the first roller shaft 9 and the second roller shaft 10 to accommodate the fabric strip passing through.

[0016] like Figure 1 and Figure 2As shown, one end of the fabric strip enters from the wide opening 5 of the fabric transmission channel 4 and is inserted into the gap between the first roller 9 and the second roller 10. The first roller 9 is controlled to move downward by the adjusting component, so that the first roller 9 and the second roller 10 are in close contact with the fabric strip. By rotating the first roller 9, the fabric strip is slowly led out to the narrow opening 6 of the fabric strip channel 4, so as to help the fabric strip pass through the double-folded pull tube quickly and conveniently.

[0017] The adjusting component includes support members 11 located on both sides of the first through hole 7. The support members 11 are fixedly installed on the folded edge piece 2. The support members 11 have a sliding groove 12. A spring 13 is fixedly installed in the sliding groove 12 and at the bottom of the sliding groove 12. A slider 14 is fixedly connected in the sliding groove 12 and at the top of the spring 13. A first roller shaft 9 is rotatably installed on the slider 14. Both ends of the first roller shaft 9 are slidably installed in the corresponding sliding groove 12 through the slider 14. A bolt member 15 is threadedly connected to the support member 11 and at the top of the sliding groove 12. When the bolt member 15 extends and retracts in the sliding groove 12, it can cause the slider 14 to rise and fall.

[0018] like Figure 2 As shown, after the fabric strip passes through the gap between the first roller 9 and the second roller 10, the bolt 15 can be rotated to press the slider 14, causing the slider 14 to move downward and drive the first roller 9 to move towards the second roller 10 until the first roller 9 and the second roller 10 are in close contact with the fabric strip. Then the first roller 9 is driven to rotate, causing the fabric strip to be introduced into the narrow opening 6. A rotating handle is fixed to the top of the bolt 15 for easy turning.

[0019] One end of the first roller 9 passes through the slider 14 and is connected to a rotating handle 16.

[0020] like Figure 2 As shown, rotating the handle 16 provides a point of force for driving the first roller shaft 9, making it convenient to rotate the first roller shaft 9.

[0021] Handles 17 are installed on the mounting plate 1 and on both sides of the connecting piece 3.

[0022] like Figure 1 As shown, Figure 1 As shown, mounting holes are provided on both sides of the mounting plate 1 to fix it on the table for easy use later; the handle 17 makes it convenient for the operator to hold the pull tube when using it. In this embodiment, after the cloth strip passes through the narrow opening 6, the double-folded pull tube can be fixed on the table and the operator can pull the cloth strip by hand, or the operator can hold the handle 17 of the pull tube with one hand and pull the cloth strip with the other hand.

[0023] The upper end face of the second roller 10 is on the same horizontal plane as the upper end face of the connecting piece 3.

[0024] like Figure 2 As shown, by keeping the second roller 10 and the connecting piece 3 on the same horizontal plane, it can be ensured that the fabric strip is not affected when the two sides of the fabric strip are folded when it is pulled out of the pull tube.

[0025] Operating principle: Fix the mounting plate 1 to the table with bolts, hold one end of the cloth strip and enter it from the wide opening 5 of the cloth transfer channel 4, and insert it into the gap between the first roller 9 and the second roller 10. Then, by turning the bolt 15, press the slider 14 downward, causing the first roller 9 to move down until it moves down to the point where the first roller 9 and the second roller 10 clamp the cloth strip. Finally, turn the rotating handle 16 to rotate the first roller 9. During the rotation, the cloth strip is slowly pulled out of the pull tube. After being pulled out of the pull tube, the cloth strip is ironed flat by the ironing machine.

[0026] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to replace them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

Claims

1. A double folding puller for double folding, comprising a mounting plate (1), a folding blade (2) and a connecting plate (3), the two sides of the folding blade (2) and the connecting plate (3) are connected to form a conveying channel (4), the inlet and outlet of the conveying channel (4) are wide mouth (5) and narrow mouth (6) respectively, characterized in that: The folded edge piece (2) and the connecting piece (3) are respectively provided with a first through hole (7) and a second through hole (8) on the side near the wide opening (5). A first roller shaft (9) is installed on the folded edge piece (2) above the first through hole (7) through an adjusting member. A second roller shaft (10) is provided on the connecting piece (3) inside the second through hole (8). There is a gap between the first roller shaft (9) and the second roller shaft (10) to accommodate the passage of the fabric strip. ​ 2. A draw cylinder for double folding as defined in claim 1, characterized in that: The adjusting component includes support members (11) located on both sides of the first through hole (7). A slide groove (12) is provided on the support member (11). A spring (13) is provided in the slide groove (12) and at the bottom of the slide groove (12). A slider (14) is provided in the slide groove (12) and at the top of the spring (13). A first roller shaft (9) is rotatably mounted on the slider (14). A bolt (15) is threadedly connected to the support member (11) and at the top of the slide groove (12). When the bolt (15) extends and retracts in the slide groove (12), it can cause the slider (14) to rise and fall.

3. A double-folded pull tube according to claim 2, characterized in that: One end of the first roller (9) passes through the slider (14) and is connected to a rotating handle (16).

4. A double-folded pull tube according to claim 1, characterized in that: Handles (17) are installed on the mounting plate (1) and on both sides of the connecting piece (3).

5. A double-folded pull tube according to claim 1, characterized in that: The upper end face of the second roller (10) is on the same horizontal plane as the upper end face of the connecting piece (3).

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