Auxiliary folder for quickly sewing waist elastic band

Abstract

The utility model discloses an auxiliary folder for quickly sewing a waist elastic band. The auxiliary folder comprises an outer barrel, an inner cylinder is arranged in the outer cylinder, the inner cylinder gradually protrudes from front to back to be in a U shape, a trouser waist groove is formed in the connecting position of the outer cylinder and the inner cylinder, a guide piece is arranged on the inner side of the inner cylinder, the guide piece is arranged in a V shape, an elastic band is guided in through the guide piece, and the tedious problem caused by the fact that the elastic band needs to be manually threaded is solved. According to the auxiliary folder for rapidly sewing the waist elastic band, in the process of processing trousers, the waist is placed in the waist groove formed by the outer barrel and the inner barrel, the elastic band is placed in the guide piece, the waist and the elastic band are led out from the front end of the outer barrel, and the elastic band is conveniently straightened by the guide piece; the problem that the elastic band needs to be manually threaded is solved, the overall processing efficiency is improved, the possibility that the elastic band is turned over is reduced, and the problem that the elastic band needs to be reworked after being turned over and sewn is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of sewing machine auxiliary tools, in particular to an auxiliary drawing cylinder for quickly sewing the elastic band of the trouser waist. Background Technique

[0002] During the process of processing trousers, to connect the trouser head to the trouser body, it is necessary to fold the two sides of the trouser head, then clamp them at the top of the trouser body, and then sew the three layers of fabric of the trouser head and the trouser body together to complete.

[0003] The existing process of sewing the trouser head requires folding and ironing the trouser head into shape, sewing one side of the formed trouser head on the trouser body, and then sewing the two layers of the trouser head and the trouser body for a whole week to complete. The overall process operation is cumbersome, the processing efficiency is low, and it is not conducive to production automation.

[0004] To overcome the above defects, the prior art 1 (a Chinese patent with the application number CN200920052235.X and the application date of March 10, 2009) is a trouser head drawing cylinder; it includes a drawing cylinder main body in the shape of a flat cylinder, and the main body gradually protrudes from back to front into a U shape. The two straight edges at the front end of the main body are horizontally arranged into an upper straight edge and a lower straight edge; a mounting plate is fixedly connected to one side close to the protrusion at its lower end; a bottom plate is fixedly connected to the concave side of the main body close to the lower end, and the lower end of the bottom plate overlaps the upper end of the lower straight edge; during processing, the trouser head is led out from the main body, and the trouser body is placed on the bottom plate. Then, after the trouser head is led out from the front end of the main body, a U shape with the opening facing the trouser body is formed, and the upper and lower sides of the trouser head clamp the trouser body in the middle; due to the guiding effect of this drawing cylinder, the trouser head and the trouser body are formed by one-time sewing, with fewer processes, simple operation, and high processing efficiency, and it is suitable for an automated production line.

[0005] Although the prior art can perform auxiliary sewing, during the working process, the trouser head and the trouser body are formed by one-time sewing through the trouser head drawing cylinder. Overall, it is necessary to fold the two sides of the trouser head, then clamp them at the top of the trouser body, and then sew the three layers of fabric of the trouser head and the trouser body together to complete. However, an elastic band needs to be set inside the trouser waist. Therefore, after sewing the trouser head and the trouser body with the trouser head drawing cylinder, the elastic band needs to be introduced through the remaining opening. Not only does it require manual operation, making the overall operation cumbersome, but also only leaving the openings on both sides to introduce the elastic band increases the complexity of threading the elastic band, resulting in a reduction in the overall processing efficiency.

[0006] In view of the above problems, it is urgent to innovate and design on the basis of the original auxiliary drawing cylinder for quickly sewing the elastic band of the trouser waist. Therefore, we have proposed an auxiliary drawing cylinder for quickly sewing the elastic band of the trouser waist, which can well solve the above problems. Content of the Utility Model

[0007] The purpose of the present utility model is to provide an auxiliary drawing tube for quickly sewing the elastic band of the trouser waist, so as to solve the problem proposed in the above background technology that in the current market, the trouser head and the trouser body are sewn and formed at one time through a trouser head drawing tube. As a whole, the two sides of the trouser head need to be folded, then clamped at the top of the trouser body, and then the three layers of fabric of the trouser head and the trouser body are sewn together to complete. However, an elastic band needs to be arranged inside the trouser waist. Therefore, after sewing the trouser head and the trouser body with the trouser head drawing tube, the elastic band needs to be introduced through the remaining opening. This not only requires manual operation, making the overall operation cumbersome, but also only leaving openings on both sides to introduce the elastic band increases the complexity of threading the elastic band, resulting in a reduction in the overall processing efficiency.

[0008] To achieve the above purpose, the present utility model provides the following technical solution: an auxiliary drawing tube for quickly sewing the elastic band of the trouser waist, including an outer tube provided.

[0009] An inner tube is arranged inside the outer tube. The inner tube gradually protrudes into a U shape from front to back. A trouser waist groove is formed at the connection between the outer tube and the inner tube. A guiding piece is arranged inside the inner tube. The guiding piece is arranged in a V shape. During the process of processing trousers, the trouser waist is placed inside the trouser waist groove formed by the outer tube and the inner tube. At this time, the elastic band is placed inside the guiding piece through the cooperation of the guiding wire and the metal wire, so that the trouser waist and the elastic band are led out from the front end of the outer tube. The guiding piece is arranged in a V shape, which reduces the cumbersome problem caused by manually threading the elastic band and improves the overall processing efficiency.

[0010] Preferably, a guiding component is installed on the guiding piece. The guiding component includes a metal wire installed on the guiding piece. The V-shaped guiding piece guides the feeding of the elastic band through the cooperation of the guiding wire and the metal wire, so that the elastic band is stuck between the gaps of the guiding wire and the metal wire, which is convenient for straightening the elastic band, thereby guiding the elastic band to smoothly enter and facilitating subsequent sewing.

[0011] Preferably, the end of the metal wire is connected with a guiding wire. The guiding wire is arranged in a zigzag shape. The arranged guiding wire and the metal wire reduce the possibility of the elastic band flipping, thereby reducing the problem of rework required after the elastic band is flipped and sewn, reducing the generation of defective products, and improving the overall sewing efficiency.

[0012] Preferably, a limiting rod is installed on the outer side of the outer tube. A positioning component is arranged on one side of the outer tube. The positioning component includes a positioning baffle installed on one side. The device is placed on the sewing machine, and bolts are passed through the positioning slots on the positioning baffle, so that the device is convenient to be installed on the sewing machine.

[0013] Preferably, a plurality of positioning grooves are provided on the positioning baffle, and the positioning grooves correspond to the positions of the connecting screw holes on the needle plate of the sewing machine. A bottom plate is provided on the other side of the outer tube, and the bottom plate has a natural transition to the side of the outer tube, which not only allows the trouser body to run smoothly, thereby improving the overall sewing efficiency, but also avoids the deviation of the trouser body during the sewing process, further improves the sewing quality, and facilitates the subsequent sewing operation.

[0014] Preferably, the end of the outer tube forms a waist opening, and the waist opening is U-shaped. A protective plate is installed on the waist opening, and the elastic band is led out through the elastic band opening, which is convenient for wrapping the elastic band with the waistband, making it convenient for later sewing, reducing the problem of multiple sewing steps leading to complicated process steps. The protective plate is convenient for limiting operations, reducing the problem of sewing deviation caused by the waistband rising.

[0015] Preferably, the end of the inner tube forms an elastic band opening, and the connection between the outer tube and the bottom plate forms a trouser opening. The trouser body moves simultaneously with the trouser waist wrapped with the elastic band through the trouser opening, which is convenient for sewing operations. The provided separating protrusions facilitate separation of the top of the trouser waist from the top of the elastic band, reducing the problem of uneven stretching and contraction of the elastic band caused by sewing the elastic band and the trouser waist together, thereby improving the qualified rate of the overall finished product.

[0016] Preferably, the waist opening and the elastic band opening are provided with separation protrusions, and the side wall of the outer tube is provided with an observation groove.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows: the auxiliary pull tube for quickly sewing the waistband elastic band of trousers, during the process of processing trousers, the trouser waist is placed in the trouser waist groove formed by the outer tube and the inner tube, and the elastic band is placed in the guide piece, so that the trouser waist and the elastic band are guided out from the front end of the outer tube. The guide piece facilitates the straightening of the elastic band, which not only reduces the tedious problem caused by the need to manually insert the elastic band and improves the overall processing efficiency, but also reduces the possibility of the elastic band flipping, and reduces the problem of rework after the elastic band is flipped and sewn. The specific contents are as follows:

[0018] The elastic band is placed inside the guide piece through the cooperation of the guide wire and the metal wire, so that the waistband and the elastic band are guided out from the front end of the outer tube, which is convenient for subsequent sewing, reduces the tedious problem caused by the need to manually insert the elastic band, and improves the overall processing efficiency;

[0019] The guide wire and metal wire reduce the possibility of the elastic band turning over, thereby reducing the production of defective products. The limit rod is convenient for limiting and guiding the waistband when inserting it, reducing the problem of the waistband moving into the waistband groove and improving the overall sewing efficiency.

[0020] Place the device on the sewing machine and use bolts to pass through the positioning slots on the positioning baffle, so that the device is convenient to be installed on the sewing machine. The multiple positioning slots set meet the installation requirements of more models of sewing machines and improve the practicability of the overall device;

[0021] The observation slot set can observe the position of the waistband of the trousers. Export the waistband through the waistband opening, which is convenient to use the waistband to wrap the elastic band, reducing the problem of complicated process steps caused by multiple sewing. The protective plate set is convenient to limit the waistband, reducing the problem of sewing deviation caused by the waistband warping;

[0022] Use the sewing machine for sewing operation. The partition bumps set are convenient to separate the top of the waistband of the trousers from the top of the elastic band, reducing the problem that the elastic band cannot stretch and contract evenly when sewing the elastic band and the waistband together, and improving the qualification rate of the overall finished product. Brief Description of the Drawings

[0023] Figure 1 It is a schematic diagram of the overall structure of the present utility model;

[0024] Figure 2 It is a schematic front view structure diagram of the present utility model;

[0025] Figure 3 It is a schematic side view structure diagram of the present utility model;

[0026] Figure 4 It is a schematic diagram of the internal structure of the present utility model;

[0027] Figure 5 It is a schematic rear view structure diagram of the present utility model;

[0028] Figure 6 It is a schematic diagram of the connection structure between the outer cylinder and the positioning plate of the present utility model;

[0029] Figure 7 It is a schematic diagram of the connection structure between the guiding sheet and the metal wire of the present utility model.

[0030] In the figure: 1. Outer cylinder; 2. Inner cylinder; 3. Waistband slot; 4. Guiding sheet; 5. Metal wire; 6. Guide wire; 7. Limiting rod; 8. Positioning baffle; 9. Positioning slot; 10. Bottom plate; 11. Waistband opening; 12. Protective plate; 13. Elastic band opening; 14. Trousers opening; 15. Partition bump; 16. Observation slot. Detailed Description of the Invention

[0031] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative work belong to the scope of protection of the present utility model.

[0032] Embodiment 1:

[0033] In this embodiment, in order to improve the overall automation level, it is used by setting a guiding piece 4. The purpose is to reduce the problem that the automation level is reduced due to manually threading the elastic band. For example, Figure 1 , Figure 4 and Figure 7 As shown in the technical solution, it includes a set outer cylinder 1. An inner cylinder 2 is arranged inside the outer cylinder 1. The inner cylinder 2 gradually protrudes into a U shape from front to back. A waist groove 3 is formed at the connection between the outer cylinder 1 and the inner cylinder 2. A guiding piece 4 is arranged inside the inner cylinder 2. The guiding piece 4 is arranged in a V shape. A guiding component is installed on the guiding piece 4. The guiding component includes a wire 5 installed on the guiding piece 4. The end of the wire 5 is connected to a guiding wire 6. The guiding wire 6 is arranged in a zigzag shape. During the process of processing trousers, the waist is placed inside the waist groove 3 formed by the outer cylinder 1 and the inner cylinder 2. At this time, the elastic band is placed inside the guiding piece 4 through the cooperation of the guiding wire 6 and the wire 5, so that the waist and the elastic band are led out from the front end of the outer cylinder 1. The guiding piece 4 is arranged in a V shape. The V-shaped guiding piece 4 guides the feeding of the elastic band through the cooperation of the guiding wire 6 and the wire 5, so that the elastic band is stuck between the gaps of the guiding wire 6 and the wire 5, which is convenient for straightening the elastic band, thereby guiding the elastic band to smoothly enter, facilitating subsequent sewing, reducing the cumbersome problem caused by manually threading the elastic band, improving the overall processing efficiency. And at this time, the waist fabric can move closely along the outer wall of the inner cylinder 2, thus ensuring the smooth operation of the waist. And the arranged guiding wire 6 and wire 5 reduce the possibility of the elastic band flipping, thereby reducing the problem of rework required after the elastic band is flipped and sewn, reducing the production of defective products, and improving the overall sewing efficiency. After placing the trouser body, it is convenient for fitting and sewing. The whole is placed on a sewing machine. After opening the sewing machine, it is convenient to sew and form the waistband and the trouser body. After the sewing pleats of the waistband and the trouser body are sewn around the whole circumference, only the head and tail ends need to be sewn and sealed to complete the whole process of sewing the waistband.

[0034] Embodiment 2:

[0035] In this embodiment, in order to improve the overall installation efficiency, it is used by setting a positioning component. The set multiple positioning grooves 9 meet the installation requirements of more models of sewing machines, improving the practicality of the overall device. Specifically, as shown in Figure 5 and Figure 6As shown, a limiting rod 7 is installed on the outside of the outer cylinder 1, and a positioning assembly is provided on one side of the outer cylinder 1. The positioning assembly includes a positioning baffle 8 installed on one side, and a plurality of positioning grooves 9 are opened on the positioning baffle 8. The positioning grooves 9 correspond to the positions of the connecting screw holes on the needle plate of the sewing machine. A bottom plate 10 is provided on the other side of the outer cylinder 1. The setting of the limiting rod 7 facilitates the limiting guidance when the waistband is placed, reduces the problem of the waistband being inconvenient to move into the waistband groove 3, and can prevent the waistband fabric from being knotted, thereby improving the stability of the waistband. The device is placed on the sewing machine, and a bolt is used to penetrate the positioning baffle 8. The positioning grooves 9 on the outer tube 1 make it easy to install the device on the sewing machine. The multiple positioning grooves 9 meet the installation requirements of more models of sewing machines and improve the practicality of the overall device. The bottom plate 10 is naturally transitioned to the side of the outer tube 1, which not only makes the trousers run smoothly, thereby improving the overall sewing efficiency, but also avoids the deviation of the trousers during the sewing process, further improves the sewing quality, and facilitates the subsequent sewing operation. The bottom plate 10 is large in area, which is convenient for guiding the trousers for transportation and reduces the problem of inconvenience in transportation caused by friction between the trousers and the sewing machine.

[0036] Example 3:

[0037] In this embodiment, in order to improve the qualification rate of the whole finished product, the separating protrusion 15 is used to reduce the problem that the elastic band is inconvenient to use due to sewing the elastic band and the waistband together. Figure 2 、 Figure 3 and Figure 5 As shown, the end of the outer tube 1 forms a waist opening 11, which is U-shaped and has a protective plate 12 installed on the waist opening 11. The end of the inner tube 2 forms an elastic band opening 13. The connection between the outer tube 1 and the bottom plate 10 forms a trouser opening 14. The waist opening 11 and the elastic band opening 13 are provided with a separation protrusion 15. The side wall of the outer tube 1 is provided with an observation slot 16. The observation slot 16 is provided to observe the position of the waistband. The waistband is guided out through the waist opening 11 and the elastic band is guided out through the elastic band opening 13, which is convenient for wrapping the elastic band with the waistband, making it convenient to sew in the later stage and reducing the need for multiple sews. The problem of complicated process steps caused by the system is solved. The protective plate 12 is provided to facilitate the limiting operation, which reduces the problem of sewing deviation caused by the lifting of the waistband. At this time, the trouser body moves simultaneously with the waistband wrapped with the elastic band through the trouser opening 14, which is convenient for sewing operation. The separating protrusion 15 is provided to facilitate the separation of the top of the waistband from the top of the elastic band, which reduces the problem of uneven stretching and contraction of the elastic band caused by sewing the elastic band and the waistband together, thereby improving the qualified rate of the overall finished product. The contents not described in detail in this specification belong to the existing technology known to professional and technical personnel in this field.

[0038] Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. An auxiliary drawing cylinder for rapid sewing of a trouser waist elastic band, including an outer cylinder (1) provided; It is characterized in that It further includes: An inner cylinder (2) is arranged inside the outer cylinder (1). The inner cylinder (2) gradually protrudes into a U shape from front to back. A trouser waist groove (3) is formed at the connection between the outer cylinder (1) and the inner cylinder (2). A guiding piece (4) is arranged inside the inner cylinder (2), and the guiding piece (4) is arranged in a V shape.

2. The auxiliary drawing cylinder for quickly sewing the elastic waistband of trousers according to claim 1, characterized in that: A guiding component is installed on the guiding piece (4), and the guiding component includes a metal wire (5) installed on the guiding piece (4).

3. The auxiliary drawing cylinder for quickly sewing the elastic waistband of trousers according to claim 2, wherein: The end of the metal wire (5) is connected to a guiding wire (6), and the guiding wire (6) is arranged in a zigzag shape.

4. An auxiliary drawing cylinder for quickly sewing the elastic waistband of trousers according to claim 1, characterized in that: A limiting rod (7) is installed on the outer side of the outer cylinder (1). A positioning component is arranged on one side of the outer cylinder (1), and the positioning component includes a positioning baffle (8) installed on one side.

5. An auxiliary drawing cylinder for quickly sewing the elastic waistband of trousers according to claim 4, characterized in that: A plurality of positioning grooves (9) are formed on the positioning baffle (8), and the positions of the positioning grooves (9) correspond to the connection screw holes on the sewing machine needle plate. A bottom plate (10) is arranged on the other side of the outer cylinder (1).

6. The auxiliary drawing cylinder for quickly sewing the elastic waistband of trousers according to claim 1, characterized in that: A trouser waist opening (11) is formed at the end of the outer cylinder (1), and the trouser waist opening (11) is arranged in a U shape. A protection plate (12) is installed on the trouser waist opening (11).

7. An auxiliary drawing cylinder for quickly sewing the elastic waistband of trousers according to claim 1, characterized in that: An elastic band opening (13) is formed at the end of the inner cylinder (2), and a trouser opening (14) is formed at the connection between the outer cylinder (1) and the bottom plate (10).

8. An auxiliary drawing cylinder for quickly sewing the elastic waistband of trousers according to claim 6, characterized in that: A separating convex block (15) is arranged between the trouser waist opening (11) and the elastic band opening (13), and an observation groove (16) is formed on the side wall of the outer cylinder (1).

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