New sewing method for pull tube and cuff / foot decorative edge

Abstract

The present invention provides a novel pull-up tube and a method for sewing cuff / leg decorative edges. The pull-up tube comprises a first hemming tube and a second hemming tube. The base fabric and the edge fabric enter the fabric guiding channel of the first hemming tube and the fabric guiding channel of the second hemming tube respectively, and are folded in half and output from a fabric outlet. The second hemming tube is installed on one side of an opening of the first hemming tube, and the opening of the second hemming tube is arranged in a different direction from the opening of the first hemming tube and is partially accommodated in a cavity of the first hemming tube. The second hemming tube extends parallel to the first hemming tube, and the second hemming tube is bent and passes through the opening of the first hemming tube and protrudes parallel to the outside of the first hemming tube by a preset width, so that when the base fabric and the edge fabric are output from the fabric outlet, the opening side of the edge fabric is sewn inside the folded base fabric, and the folded side of the edge fabric is arranged parallel to and staggered outwardly by a preset width relative to the base fabric. Therefore, the base fabric and the edge fabric only need to be respectively rolled up by the first hemming tube and the second hemming tube, and the folding, stacking and sewing operations can be completed in one step.

Description

Technical Field

[0001] The invention belongs to the technical field of sewing auxiliary equipment, and in particular relates to a novel sewing method for a pull tube and a cuff / foot decorative edge. Background Art

[0002] In garment processing, it is often necessary to use the sewing process of lace stitching clothing cuffs / legs. This process often relies on workers to fold and sew manually, which has low production efficiency and uneven product quality. Therefore, the pull tube (curler, edge seamer, mouth) came into being as a sewing auxiliary tool, which can be used for rolling collars, rolling edges, folding edges, pulling feet, and drawing straps on various fabrics.

[0003] However, at present, the cuffs / hems that are overlapped with the edge cloth and the base cloth often need to be sewn manually, and there is a lack of pull tubes suitable for the cuff / hem decorative edge design of the new built-in trim rope. Without the assistance of the pull tube, the worker needs to: fold the decorative edge in half and insert the trim rope - place the decorative edge - iron the stop - clamp the cuff / hem - press the cuff / hem to the line - press down the decorative edge of the trim rope. It takes 6 working steps to complete the splicing of the decorative change of the built-in trim rope and the cuff / hem of the clothes. The steps are cumbersome, the cost is high, and it is not conducive to large-scale production. Summary of the invention

[0004] In order to solve the above technical problems, the present invention provides a new type of pull tube, including a first hemming tube and a second hemming tube, both of which are open tubes formed by rolling up the two edges of a material plate to the same side to form an opening and a bend, and the cloth guide channel is arranged to be contracted from the cloth inlet to the cloth outlet and gradually tends to be flat, and a cloth feed plate extending from the opening of the first hemming tube is extended below the second hemming tube and passes through the opening of the first hemming tube for placing the garment pieces to be processed;

[0005] The second curling tube is installed in the opening of the first curling tube, and the second curling tube opening is arranged in a different direction from the first curling tube opening and is partially accommodated in the first curling tube cavity. The second curling tube extends parallel to the first curling tube, and the second curling tube is bent and passes through the opening of the first curling tube and protrudes parallel to the outside of the first curling tube by a preset width.

[0006] Furthermore, a wire tube is provided on the inner side of the second crimping tube and obliquely penetrates into the cloth guiding channel.

[0007] Furthermore, the first curling tube and the second curling tube are fixedly connected via a joint, the joint comprising a mounting seat connected to the top of the first curling tube and an insertion rod connected to the second curling tube, the mounting seat is provided with a through hole adapted for the insertion rod, and the second curling tube is adjustably connected to the first curling tube via the insertion rod penetrating the through hole of the mounting seat.

[0008] Furthermore, the mounting seat is provided with a first opening in the extension direction of the insertion rod, the shape and inner diameter of which are adapted to the insertion rod, and the mounting seat is also provided with a clamping device for positioning the insertion rod in a direction perpendicular to the first opening.

[0009] Furthermore, the first hemming tube is rolled up at the edge of the cloth outlet to form a first cloth outlet folded edge, and the second hemming tube is rolled up at the edge of the cloth outlet to form a second cloth outlet folded edge, and the first cloth outlet folded edge is arranged in parallel with the second cloth outlet folded edge.

[0010] Furthermore, the folded edge of the first cloth outlet is divided into an upper folded edge and a lower folded edge, and the upper folded edge and the lower folded edge are provided with cloth guide tongues with adapted widths corresponding to the cloth outlet of the second crimping tube.

[0011] Furthermore, the pull cylinder also includes a fixing plate arranged corresponding to the cloth outlet, and the fixing plate is provided with a mounting groove for fixing the pull cylinder and the working area.

[0012] Furthermore, the first curling tube is also provided with a cloth guide plate connecting the flipping edges together, the cloth guide plate extends to the outside of the cloth inlet of the first curling device, and a cloth guide rod is fixedly connected to the outside of the cloth guide plate. The cloth guide plate and the cloth guide rod together constitute an external cloth feeding channel connected to the internal cloth guide channel of the first curling tube, and the second curling tube is provided with a serpentine cloth guide rod.

[0013] The present invention also provides a method for sewing cuff / foot decorative edges, which uses a pull tube, and the sewing steps include:

[0014] In the first step, the new pull tube is fixed at the designated working position;

[0015] In the second step, the base fabric enters the first crimping drum and is assisted by an external booster to slide from the fabric inlet to the fabric outlet;

[0016] In the third step, the edge cloth is assisted by an external booster to enter the inner cavity of the second edge curling tube from the cloth inlet and slide toward the cloth outlet;

[0017] Step 4: the garment piece to be processed enters from the opening of the first hemming drum and slides forward supported by the cloth feeding plate arranged under the second hemming drum;

[0018] In the fifth step, the side cloth and the base cloth are folded and output from the cloth outlet of the first hemming tube / the second hemming tube respectively, and the opening side of the side cloth is sewn inside the folded base cloth and the folded side of the side cloth is parallel to the base cloth and staggered outward by a preset width.

[0019] Furthermore, a wire tube is provided on the inner side of the second hemming tube, which is obliquely inserted into the cloth guide channel. The edge cord enters the cloth guide channel of the second hemming tube through the wire tube. The edge cord is calibrated so that it is placed close to the folded side of the edge cloth. During operation, it is sewn close to the side of the edge cord so that the edge cloth is fixed between the folded base cloth and forms a decorative edge with a built-in edge cord.

[0020] The new type of pull-up drum provided by the present invention comprises a first hemming drum and a second hemming drum, the base cloth and the edge cloth respectively enter the cloth guiding channel of the first hemming drum and the cloth guiding channel of the second hemming drum, and are folded in half and output from the cloth outlet, the second hemming drum is installed on one side of the opening of the first hemming drum, and the opening of the second hemming drum is arranged in a different direction from the opening of the first hemming drum and is partially accommodated in the cavity of the first hemming drum, the second hemming drum extends parallel to the first hemming drum, the second hemming drum is bent and passes through the opening of the first hemming drum and protrudes a pre-curled portion parallel to the outer side of the first hemming drum A width is set, and a cloth feeding plate extending from the opening of the first hemming tube is extended below the second hemming tube, so that when the base cloth and the edge cloth are output from the cloth outlet, the open side of the edge cloth is sewn inside the folded base cloth, and the folded side of the edge cloth is staggered and arranged parallel to the base cloth outward by a preset width, and the decorative edge formed by the edge cloth and the base cloth is synchronously sewn on the garment piece to be processed (cuff garment piece / leg garment piece), so that the base cloth and the edge cloth only need to be rolled up by the first hemming tube and the second hemming tube respectively, and the folding, stacking and sewing operations can be completed in one step. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 It is a three-dimensional structural diagram of the pull tube;

[0023] Figure 2 is a schematic diagram of the three-dimensional structure of the second cloth roll;

[0024] Figure 3 It is a schematic diagram of the structure of the cloth outlet of the pull tube.

[0025] Description of main component symbols:

[0026] 1: first crimping tube; 11: mounting seat; 2: second crimping tube; 21: wire tube; 22: insertion rod; 3: cloth guide tongue; 4: fixing plate; 41: mounting groove; 5: cloth guide plate; 6: first cloth guide rod; 7: second cloth guide rod; 8: positioning rod; 9: cloth feed plate DETAILED DESCRIPTION

[0027] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, which are only for simplifying the description, and do not indicate that the device or element must have a specific orientation, or be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0028] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be fixedly connected, detachably connected or integrally connected; it can be mechanically connected or electrically connected; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0029] The technical solution of this patent is further described in detail below in conjunction with specific implementation methods.

[0030] Embodiment 1:

[0031] In garment processing, it is often necessary to use the sewing process of lace stitching clothing cuffs / legs. This process often relies on workers to fold and sew manually, which has low production efficiency and uneven product quality. Therefore, the pull tube (curler, edge seamer, mouth) came into being as a sewing auxiliary tool, which can be used for rolling collars, rolling edges, folding edges, pulling feet, and drawing straps on various fabrics.

[0032] However, the cuffs / legs of the stacked edge fabric and base fabric often need to be manually sewn. To solve the above problem, the present invention discloses a new type of pull-up tube. Different from the existing single hemming tube design, the pull-up tube is provided with two hemming tubes (a first hemming tube and a second hemming tube) that are integrally fixedly connected. The base fabric and the edge fabric only need to be fed into the first hemming tube and the second hemming tube from the fabric inlet, respectively, and then they can be transmitted through the fabric guide channel and folded in half for output, thereby quickly and accurately realizing the folding and stacking of the base fabric and the edge fabric. Specifically, the structure is as follows: Figure 1As indicated, the first curling tube 1 and the second curling tube 2 both include a cloth inlet, a cloth outlet and a cloth guiding channel, and both are open tubes formed by rolling the two edges of the material plate to the same side relative to each other to form an opening and a bend, and the cloth guiding channel is contracted from the cloth inlet to the cloth outlet and gradually becomes flat. In order to rationalize the structure, the second hemming tube 2 is installed on the opening side of the first hemming tube 1, and the opening of the second hemming tube 2 is arranged in the opposite direction to the opening of the first hemming tube 1 and is partially accommodated in the cavity of the first hemming tube 1. The second hemming tube 2 extends parallel to the first hemming tube 1, and the second hemming tube 2 is bent and passes through the opening of the first hemming tube 1 and protrudes parallel to the outside of the first hemming tube by a preset width. A cloth feed plate 9 extending from the opening of the first hemming tube is extended below the second hemming tube, so that when the base cloth and the edge cloth are output from the cloth outlet, the opening side of the edge cloth is sewn on the inside of the folded base cloth, and the folded side of the edge cloth is staggered outwardly and parallel to the base cloth by a preset width, and the decorative edge formed by the edge cloth and the base cloth is synchronously sewn on the garment piece to be processed (including the cuff garment piece / leg garment piece). Therefore, the base cloth and the edge cloth only need to be respectively rolled up by the first hemming tube and the second hemming tube, and the folding, stacking and sewing operations of the base cloth and the edge cloth can be completed in one step.

[0033] In order to further enhance the functionality of the pull tube, a wire tube 21 obliquely inserted into the cloth guide channel is provided on the inner side of the second hemming tube 2. The edge cord can enter the cloth guide channel of the second hemming tube 2 through the wire tube 21 and be wrapped in the edge cloth that enters the second hemming tube together. The edge cord is set close to the folded side of the edge cloth. Thus, a pull tube suitable for the cuff / leg decorative edge design with a new built-in decorative cord is provided. There is no need to perform the six processes of folding the decorative edge, inserting the decorative cord - placing the decorative edge - ironing the stopper - clamping the cuff / leg - pressing the cuff / leg line - pressing down the decorative edge of the decorative cord. It only needs to feed the base cloth, the edge cloth and the edge cord into the pull tube together to complete the splicing of the decorative edge of the built-in decorative cord and the cuff / leg of the clothing, which can simplify the steps, reduce costs, and facilitate large-scale production.

[0034] To further rationalize the structure, the first hemming tube 1 and the second hemming tube 2 are fixedly connected through a joint, and the joint includes a mounting seat 11 connected to the top of the first hemming tube 1 and an insertion rod 22 connected to the second hemming tube 2. The mounting seat 11 is provided with a through hole adapted to the insertion rod 22. The second hemming tube 2 is adjustably connected to the first hemming tube 1 through the insertion rod 22 penetrating the through hole of the mounting seat 11, so that the relative position of the edge cloth and the base cloth can be adjusted, and then the width of the decorative edge can be adjusted as needed. Specifically, as a rationalized structure, in this embodiment, the insertion rod 22 is fixed on the bending side of the second hemming tube, and the insertion rod 22 is The one-piece molded rod is bent into a shaped body and is divided into a vertical rod portion and a horizontal rod portion. The vertical rod portion extends in a direction perpendicular to the second curling tube cloth guiding channel, and the horizontal rod portion passes through the mounting seat 11. The mounting seat 11 is provided with a first opening in the extension direction of the insertion rod 22, and the shape and inner diameter of the first opening are adapted to the horizontal rod portion. The mounting seat 11 is also provided with a clamping device for positioning the insertion rod 22 in a direction perpendicular to the first opening.

[0035] In order to flatten the base fabric and the edge fabric, the first hemming tube 1 is rolled up at the edge of the fabric outlet to form the first fabric outlet folded edge, and the second hemming tube 2 is rolled up at the edge of the fabric outlet to form the second fabric outlet folded edge, and the second fabric outlet folded edge is arranged in parallel with the second fabric outlet folded edge. In order to further flatten the base fabric and the edge fabric and avoid bulging and unevenness, the first fabric outlet folded edge is divided into an upper folded edge and a lower folded edge. The upper folded edge and the lower folded edge are provided with a cloth guide tongue 3 with a width matching the cloth outlet of the second hemming tube corresponding to the cloth outlet of the second hemming tube. In order to further improve the flatness, the first hemming tube 1 is bent and installed with a positioning rod 8 extending along the direction of the cloth guide channel to limit the fold line of the base fabric facing the cloth.

[0036] In order to enhance the stability of the pull tube structure and facilitate sewing operations, the pull tube also includes a fixing plate 4 arranged corresponding to the cloth outlet, and the fixing plate 4 is provided with a mounting groove 41 for fixing the pull tube and the working area. The first hemming tube and the second hemming tube 2 are bent and provided with guide holes for an external booster to assist the base cloth and the edge cloth to slide from the cloth inlet to the cloth outlet.

[0037] In order to further stably transport the base cloth and the edge cloth, the first hemming tube 1 is also provided with a cloth guide plate 5 connecting the flipped edges together, the cloth guide plate 5 extends to the outside of the cloth inlet of the first hemming device, and the outside of the cloth guide plate 5 is also fixedly connected to the first cloth guide rod 6, the cloth guide plate 5 and the first cloth guide rod 6 together constitute an external cloth feeding channel connected to the internal cloth guide channel of the first hemming tube, and the second hemming tube 2 is provided with a second cloth guide rod 7, and the second cloth guide rod 7 is serpentine.

[0038] Embodiment 2:

[0039] The present invention also provides a method for sewing cuff / leg decorative edges, using the pull tube in Example 1, and the sewing steps include:

[0040] The first step is to fix the new pull tube at the designated working position through the mounting groove 41 on the fixing plate 4;

[0041] In the second step, the base fabric enters the first crimping drum 1 through the guide plate and is assisted by an external booster to slide from the fabric inlet to the fabric outlet;

[0042] In the third step, the selvedge fabric is alternately wound up and down around the serpentine fabric guide rod, and the fabric surface is assisted by an external booster to enter the inner cavity of the second hemming cylinder 2 from the fabric inlet and slide toward the fabric outlet;

[0043] Step 4: the garment pieces to be processed enter from the opening of the first hemming drum and slide forward supported by the cloth feeding plate provided under the second hemming drum;

[0044] In the fifth step, the edge cloth and the base cloth are folded and output from the cloth outlets of the first hemming tube 1 / the second hemming tube 2, respectively, and the opening side of the edge cloth is sewn inside the folded base cloth, and the folded side of the edge cloth is parallel to the base cloth and staggered outward by a preset width.

[0045] In order to enhance the aesthetics of the cuff / hem decorative edge, a wire tube 21 is provided on the inner side of the second hemming tube 2, which is obliquely inserted into the cloth guide channel. The edge cord enters the cloth guide channel of the second hemming tube 2 through the wire tube 21. The edge cord is calibrated so that it is placed close to the folded side of the edge cloth. During operation, it is sewn close to the side of the edge cord so that the edge cloth is fixed between the folded base cloth and a decorative edge with a built-in edge cord is formed.

[0046] The novel pull tube and cuff / hem decorative edge sewing method provided by the present invention are introduced in detail above. Specific examples are used herein to illustrate the principle and implementation mode of the present invention. The description of the above embodiments is only used to help understand the core idea of ​​the present invention. At the same time, for those skilled in the art, according to the idea and method of the present invention, there will be changes in the specific implementation mode and application scope. In summary, the content of this specification should not be understood as a limitation on the present invention.

Claims

1. A new type of pull tube, characterized in that: The pull tube comprises: The first hemming tube and the second hemming tube are both open tubes formed by rolling the two edges of the material plate to the same side and forming an opening and a bend, and the cloth guide channel is arranged to be contracted from the cloth inlet to the cloth outlet and gradually becomes flat, and a cloth feeding plate extending from the opening of the first hemming tube and passing through is extended below the second hemming tube to place the garment pieces to be processed; The second hemming tube is installed at the opening of the first hemming tube, and the cloth inlet of the second hemming tube is arranged opposite to the cloth outlet of the first hemming tube and is partially accommodated in the first hemming tube cavity, the second hemming tube extends parallel to the first hemming tube, the second hemming tube is bent and passes through the opening of the first hemming tube and protrudes parallel to the outside of the first hemming tube by a preset width; The first curling tube and the second curling tube are fixedly connected via a joint, the joint comprising a mounting seat connected to the top of the first curling tube and an insertion rod connected to the second curling tube, the second curling tube is adjustably connected to the first curling tube via the insertion rod penetrating the mounting seat; A wire tube is provided on the inner side of the second hemming tube, which is obliquely inserted into the cloth guiding channel. The edge cord enters the cloth guiding channel of the second hemming tube through the wire tube. The edge cord is calibrated so that it is placed close to the folded side of the edge cloth. During operation, it is sewn close to the side of the edge cord so that the edge cloth is fixed between the folded base cloths and a decorative edge with a built-in edge cord is formed.

2. The novel pull tube as claimed in claim 1, characterized in that: The mounting seat is provided with a first opening in the extending direction of the insertion rod, the shape and inner diameter of which are matched with the insertion rod, and the mounting seat is also provided with a clamping device for positioning the insertion rod in a direction perpendicular to the first opening.

3. The new pull tube as claimed in claim 1, characterized in that: The first hemming tube is rolled up at the edge of the cloth outlet to form a first cloth outlet folded edge, and the second hemming tube is rolled up at the edge of the cloth outlet to form a second cloth outlet folded edge. The first cloth outlet folded edge is arranged in parallel with the second cloth outlet folded edge.

4. The new pull tube as claimed in claim 3, characterized in that: The first cloth outlet folding edge is divided into an upper folding edge and a lower folding edge, and the upper folding edge and the lower folding edge are provided with cloth guide tongues with adapted widths corresponding to the cloth outlet of the second curling tube.

5. The novel pull tube as claimed in claim 1, characterized in that: The pull cylinder also includes a fixing plate arranged corresponding to the cloth outlet, and the fixing plate is provided with a mounting groove for fixing the pull cylinder and the working area.

6. The novel pull tube as claimed in claim 1, characterized in that: The first curling tube is also provided with a cloth guide plate connecting the flipping edges together, the cloth guide plate extends to the outside of the cloth inlet of the first curling device, and the outside of the cloth guide plate is also fixedly connected to the first cloth guide rod, the cloth guide plate and the cloth guide rod together constitute an external cloth feeding channel connected to the internal cloth guide channel of the first curling tube, the second curling tube is provided with a second cloth guide rod, and the second cloth guide rod is serpentine.

7. A method for sewing cuff / leg decorative edges, using the pull tube as claimed in any one of claims 1 to 6, characterized in that: Sewing steps include: The first step is to fix the new pull tube at the designated working position; In the second step, the base fabric enters the first crimping drum and is assisted by an external booster to slide from the fabric inlet to the fabric outlet; In the third step, the edge cloth is assisted by an external booster to enter the inner cavity of the second edge curling tube from the cloth inlet and slide toward the cloth outlet; Step 4: the garment pieces to be processed enter from the opening of the first hemming drum and slide forward supported by the cloth feeding plate provided under the second hemming drum; In the fifth step, the side cloth and the base cloth are folded and output from the cloth outlet of the first hemming tube / the second hemming tube respectively, and the opening side of the side cloth is sewn inside the folded base cloth and the folded side of the side cloth is parallel to the base cloth and staggered outward by a preset width.

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