Presser foot device for dark hemming of clothes

Abstract

The utility model relates to a presser foot device for dark hemming of clothes, which comprises a presser foot and a folder for hemming of a collar strip, an upper hemming barrier strip is horizontally arranged on the feeding side of the presser foot, orthographic projections of openings at two ends of the folder in the horizontal direction are respectively W-shaped and linear, and the upper hemming barrier strip and the lower hemming barrier strip are arranged on the feeding side of the presser foot. The pull cylinder is installed on the surface of the upper edge covering barrier strip in the mode that the W-shaped opening direction is approximately parallel to the length direction of the upper edge covering barrier strip, and a large body supporting plate is arranged on the side, away from the upper edge covering barrier strip, of the pull cylinder. One end of the large body supporting plate is bent towards the middle of the W-shaped opening of the folder and extends downwards to form a lower edge covering partition plate. The utility model has the advantage of improving the efficiency and quality of the hidden edge covering process.

Description

Technical Field

[0001] This utility model relates to the technical field of presser feet, and in particular to a presser foot device for concealed hemming of clothing. Background Technology

[0002] In the garment manufacturing process, the concealed binding process is a crucial step, involving double-folding the collar strip and binding it to ensure that no stitches are visible on the right side. This process typically includes several stages: first, folding and pressing the collar strip, which takes about 50 seconds; next, attaching the prepared collar strip to the designated concealed binding position on the main fabric piece, which takes about 100 seconds; and finally, performing the concealed stitching, which takes about 150 seconds. The entire process is complex, difficult to operate, inefficient, has a high rework rate, and requires extremely high skill levels from workers, making it a persistent bottleneck in the production line of this type of garment.

[0003] Chinese patent CN204825299U discloses a blind hemming device, including a presser foot and a pull tube for binding fabric strips. The front end of the pull tube is fixed to the front end of the presser foot and serves as its outlet. A notch is provided at the edge of the front end of the pull tube as a sewing opening for engagement with a sewing needle. A fabric support plate is also fixed to the front end of the presser foot, positioned on either side of the pull tube, and offset from the sewing opening. This blind hemming device uses the pull tube to bind fabric strips to garment pieces, then directly sews the fabric strips to the edge of the garment piece, effectively reducing labor intensity and featuring a simple structure and convenient operation.

[0004] The existing technical solutions mentioned above have the following drawbacks: Although the blind hemming device reduces the number of processes by integrating the binding and blind hemming operations, the small steps of binding the garment piece (body piece) supported by the fabric sheet, binding the neck strip (collar strip), and pressing the piece with the presser foot are independent of each other. When the sewing machine is running at high speed, there is a lack of positioning control of the relative position of the body piece and the neck strip folds on both sides, as well as effective neck strip binding guidance control. This can easily lead to misalignment of the body piece and the neck strip or misalignment of the neck strip folds during the feeding process, which will reduce the efficiency and quality of the blind hemming process. Utility Model Content

[0005] The present invention aims to address the aforementioned shortcomings in the existing technology by providing a presser foot device for concealed binding of garments, which has the advantages of improving the efficiency and quality of the concealed binding process.

[0006] The above-mentioned utility model objective is achieved through the following technical solution:

[0007] A presser foot device for concealed binding of clothing includes a presser foot and a pull tube for binding the collar strip. An upper binding strip is horizontally arranged on the feed side of the presser foot. The two ends of the pull tube have W-shaped and straight projections in the horizontal direction, respectively. The pull tube is installed on the surface of the upper binding strip in such a way that the direction of the W-shaped opening is approximately parallel to the length direction of the upper binding strip. A large body support plate is provided on the side of the pull tube away from the upper binding strip. One end of the large body support plate is bent toward the middle of the W-shaped opening of the pull tube and extends downward to form a lower binding partition plate.

[0008] By adopting the above technical solution, in the actual processing, the collar strip is pre-inserted through the straight opening of the pull tube and out through the W-shaped opening, directly completing the binding on both sides of the collar strip. At the same time, due to the insertion of the binding partition, the binding on both sides of the collar strip is separated on both sides of the binding partition, so that the body partition can slide along the body support plate and enter between the two bindings, completing the positioning control of the relative position of the body piece and the collar strip folds on both sides. Then, the upper binding stop strip forces the collar strip to bend and turn towards the presser foot side, so as to form the bottom binding, the side of the body piece, and the upper binding from bottom to top. The distribution of the presser foot device enables effective guidance and control of the neckline binding. Simultaneously, the pre-reserved gap between the upper binding strip and the lower binding partition facilitates the blind binding sewing operation, ensuring the smooth progress of the blind binding process. This invention's presser foot device boasts advantages such as simple structure, convenient operation, accurate positioning, and excellent binding effect, significantly improving garment processing efficiency and finished product quality. Practical application has proven that this device effectively solves the misalignment problem encountered in traditional blind binding processes, reducing rework rates and production costs, demonstrating promising market application prospects.

[0009] The present invention is further configured such that a serpentine frame is provided at the straight opening end of the pull tube.

[0010] By adopting the above technical solution, the collar strip is pre-arranged by passing through the serpentine frame in an alternating manner, so that it enters the straight opening of the pull tube in a straight line.

[0011] The present invention is further configured such that a guide plate is provided at the straight-open end of the pull tube.

[0012] The above technical solution is used to guide the movement of the collar strip toward the straight opening of the pull tube.

[0013] The present invention is further configured such that an operating groove is provided on the top surface of the pull tube.

[0014] By adopting the above technical solution, it is easy to slide the end of the collar strip from the straight opening of the pull tube to the W-shaped opening.

[0015] The present invention is further configured such that the upper edge retaining strip and the pull tube are smoothly connected.

[0016] The above technical solution is used to guide the collar strip to flip and move toward the presser foot.

[0017] The present invention is further configured such that a first guide surface is provided on the side of the main support plate away from the pull tube.

[0018] The above technical solution is used to guide the side of the main body piece to move toward the presser foot.

[0019] The present invention is further configured such that a second guide surface is provided on the side of the lower edge partition near the pull tube.

[0020] The above technical solution is used to guide the side of the main body piece to move toward the pull tube.

[0021] The present invention is further configured such that the first guide surface and the second guide surface are smoothly connected.

[0022] By adopting the above technical solution, the smooth movement of the main body fabric pieces is facilitated.

[0023] In summary, the beneficial technical effects of this utility model are as follows: it has the advantages of simple structure, convenient operation, accurate positioning, and good edge binding effect, which greatly improves the production efficiency and finished product quality of garment processing. Through practical application, it has been proven that the device can effectively solve the misalignment problem that occurs in the traditional concealed edge binding process, reduce the rework rate, reduce production costs, and has good market application prospects. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the presser foot device for concealed binding of clothing according to this utility model.

[0025] Figure 2 This is a schematic diagram showing the connection relationship between the pull tube, the serpentine frame, and the guide plate of this utility model.

[0026] Figure 3 This is a schematic diagram showing the connection relationship between the presser foot, pull tube, main support plate, and lower edge partition of this utility model.

[0027] In the diagram, 1 is the presser foot; 2 is the upper edge banding strip; 3 is the pull tube; 31 is the serpentine frame; 32 is the guide plate; 33 is the operating slot; 4 is the main body plate; 41 is the first guide surface; 5 is the lower edge banding partition; and 51 is the second guide surface. Detailed Implementation

[0028] To make the technical means, creative features, objectives and effects of this utility model clearer and easier to understand, the present utility model will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0029] Reference Figure 1 The present invention discloses a presser foot 1 device for concealed binding of clothing, including presser foot 1, upper binding strip 2 horizontally arranged on the feeding side of presser foot 1, pull tube 3 for binding collar strips, and a large body support plate 4 arranged on the side of pull tube 3 away from the upper binding strip 2.

[0030] The two ends of the pull tube 3 have horizontal projections that form a W-shape and a straight line, respectively. The pull tube 3 is installed on the surface of the upper binding strip 2 in a manner that the W-shaped opening direction is approximately parallel to the length direction of the upper binding strip 2. The upper binding strip 2 and the pull tube 3 are smoothly connected to guide the collar strip to flip and move towards the presser foot 1.

[0031] Reference Figure 2 To facilitate the feeding of the collar strip at the pull tube 3, the straight opening end of the pull tube 3 is provided with a serpentine frame 31 and a guide plate 32 overlapping the serpentine frame 31, and the top surface of the pull tube 3 is provided with an operating groove 33. The collar strip passes through the serpentine frame 31 in a staggered manner beforehand, which can pre-arrange the collar strip to make it straight, and then enter the straight opening of the pull tube 3 along the guide plate 32.

[0032] Reference Figure 3 One end of the main body support plate 4 bends towards the center of the W-shaped opening of the pull tube 3 and extends downward to form the lower binding partition plate 5. A first guide surface 41 is provided on the side of the main body support plate 4 away from the pull tube 3, and a second guide surface 51 is provided on the side of the lower binding partition plate 5 near the pull tube 3. The first guide surface 41 and the second guide surface 51 are smoothly connected. The first guide surface 41 and the second guide surface 51 are used to guide the side of the main body fabric piece to move sequentially towards the pull tube 3 and the presser foot 1 in order to complete the concealed binding operation.

[0033] The implementation principle of this embodiment is as follows: In the actual processing, the collar strip is pre-inserted through the straight opening of the pull tube 3 and out through the W-shaped opening to directly complete the binding of both sides of the collar strip. At the same time, due to the insertion of the binding partition, the binding of both sides of the collar strip is separated on both sides of the binding partition, so that the body partition can slide along the body support plate 4 and enter between the two bindings to complete the positioning control of the relative position of the body piece and the collar strip folds on both sides. Then, the collar strip is forced to bend and flip towards the presser foot 1 by the upper binding stop 2 to form the bottom binding, the side of the body piece, and the upper binding from bottom to top, so as to achieve effective collar binding guidance control. At the same time, the gap reserved between the upper binding stop 2 and the lower binding partition 5 facilitates the sewing machine to perform the blind binding sewing operation, thereby ensuring the smooth progress of the blind binding process.

[0034] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A presser foot device for concealed binding of garments, comprising a presser foot (1) and a pull tube (3) for binding collar strips, characterized in that: The presser foot (1) has an upper edge baffle (2) horizontally arranged on the feed side. The two ends of the pull cylinder (3) have W-shaped and straight projections in the horizontal direction, respectively. The pull cylinder (3) is installed on the surface of the upper edge baffle (2) in a manner that the W-shaped opening direction is approximately parallel to the length direction of the upper edge baffle (2). A large body support plate (4) is arranged on the side of the pull cylinder (3) away from the upper edge baffle (2). One end of the large body support plate (4) is bent toward the middle of the W-shaped opening of the pull cylinder (3) and extends downward to form a lower edge baffle plate (5).

2. The presser foot (1) device for concealed binding of clothing according to claim 1, characterized in that: The tube (3) has a serpentine frame (31) at its straight opening end.

3. The presser foot (1) device for concealed binding of clothing according to claim 1, characterized in that: The pull tube (3) is provided with a guide plate (32) at its straight opening end.

4. The presser foot (1) device for concealed binding of clothing according to claim 1, characterized in that: The top surface of the pull tube (3) is provided with an operation groove (33).

5. The presser foot (1) device for concealed binding of clothing according to claim 1, characterized in that: The upper edge retaining strip (2) and the pull tube (3) are smoothly connected.

6. The presser foot (1) device for concealed binding of clothing according to claim 1, characterized in that: The main support plate (4) is provided with a first guide surface (41) on the side away from the pull tube (3).

7. The presser foot (1) device for concealed binding of clothing according to claim 6, characterized in that: The lower edge partition (5) is provided with a second guide surface (51) on the side near the pull tube (3).

8. The presser foot (1) device for concealed binding of clothing according to claim 7, characterized in that: The first guide surface (41) and the second guide surface (51) are smoothly connected.

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