Simple folder device for pulling elastic trouser loop

Abstract

The utility model provides a simple folder device for pulling an elastic trouser loop, which comprises a foldable plate body, the plate body is folded along a central line and then folded along two sides of the central line to form a three-fold structure, the three-fold structure forms a closed guide channel, the surface of the plate body is provided with an anti-slip layer, and one end of the plate body is provided with a funnel-shaped opening. According to the simple folder device, the closed guide channel is formed through the special three-fold structure design, an elastic cloth strip can naturally form a uniform double-layer structure when penetrating through the device, the simple and practical structure design and the anti-skid layer configuration are adopted, the problems of deformation and displacement in the traditional manual folding process are effectively solved, and the production efficiency is improved. And the manufacturing efficiency and the product consistency of the elastic trouser loop are obviously improved.

Description

Technical Field

[0001] This utility model relates to the field of auxiliary equipment for garment manufacturing, and in particular to a simple pull tube device for pulling elastic trouser loops. Background Technology

[0002] In the garment manufacturing industry, trouser loops are an important component of trousers used for wearing belts. Especially in modern garment manufacturing where elastic fabrics are widely used, elastic trouser loops are widely adopted due to their comfort and adaptability. The traditional production process of elastic trouser loops usually requires folding a single strip of elastic fabric into a double-layer structure and then sewing it in place.

[0003] However, existing technologies for making elastic trouser loops present the following technical problems: when folding elastic strips into a double-layer structure by hand, the elastic fabric is prone to deformation and displacement due to its properties, resulting in uneven folding and affecting the appearance and performance of the loops; furthermore, due to the lack of standardized auxiliary tools, elastic trouser loops made by different workers vary in width, thickness, and other aspects, making it difficult to ensure product consistency; when feeding the folded elastic strips into the sewing machine for sewing, it is necessary to maintain the tension and position of the fabric simultaneously, which requires a high level of skill from the operator.

[0004] While some automated equipment exists for making trouser loops, these devices are typically expensive, bulky, complex to operate, and costly to maintain, making them unsuitable for most small and medium-sized garment processing enterprises. Furthermore, some simple folding guide devices often fail to adapt well to the properties of elastic materials, leading to problems such as material slippage and deformation during the folding process.

[0005] Therefore, there is an urgent need to develop a simple, practical, low-cost auxiliary device that is suitable for the properties of elastic fabrics to improve the production efficiency and quality consistency of elastic trousers and solve the aforementioned problems in the existing technology. Utility Model Content

[0006] The technical problem to be solved by this utility model is to address the problems of difficult manual operation, low production efficiency, poor product consistency and lack of special simple tools in the existing production process of elastic trouser loops, and to provide a simple pull tube device for elastic trouser loops that is simple in structure, easy to use and can effectively assist elastic strips in forming a double-layer structure.

[0007] The technical solution adopted by this utility model to solve its technical problem is:

[0008] A simple pull-out device for elastic trousers includes a foldable plastic plate. The plastic plate is folded in half along the center line and then folded in half again along both sides of the center line to form a three-fold structure. The three-fold structure forms a guide channel for guiding the elastic strip through and naturally forming a double-layer structure during the pulling process.

[0009] Preferably, the plastic sheet is made of thermoplastic and has a thickness of 0.5-2 mm.

[0010] Preferably, the plastic sheet is rectangular before folding, with a length of 25-35cm and a width of 10-15cm.

[0011] Preferably, the plastic sheet has indentation lines at the folds on both sides to facilitate precise folding.

[0012] Preferably, the surface of the plastic sheet is provided with an anti-slip layer to enhance the guiding effect on the elastic strip.

[0013] Preferably, the inner diameter of the guide channel formed by the three-fold structure matches the width of a standard elastic trouser loop, which is 1.5-3cm.

[0014] Preferably, one end of the plastic plate has a funnel-shaped opening to facilitate the initial insertion of the elastic strip.

[0015] The beneficial effects that this utility model can achieve are:

[0016] Through a special three-fold structure design, a closed guide channel is formed, allowing the elastic strip to naturally form a uniform double-layer structure when passing through the device. This solves the deformation and displacement problems that occur during traditional manual folding, and significantly improves the production quality and consistency of elastic trousers. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the folded structure of the simple pull tube device for the elastic trouser loops in Example 1;

[0018] Figure 2 This is a schematic diagram of the folded structure of the simple pull tube device for the elastic trouser loops in Example 1.

[0019] The above figures are labeled as follows: 1. Plastic sheet; 2. Indentation line; 3. Anti-slip layer; 4. Opening. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments, but these specific embodiments do not limit the scope of protection of the present invention in any way.

[0021] Example 1

[0022] See Figure 1-2 A simple pull-tab device for elastic trousers is disclosed, which mainly consists of a foldable plastic sheet 1. In this embodiment, the plastic sheet 1 is made of thermoplastic plastic such as polypropylene (PP) or polyvinyl chloride (PVC), which has good toughness and durability. The plastic sheet 1 is 1 mm thick, which ensures the rigidity of the device without making it too bulky.

[0023] In this embodiment, the plastic plate 1 is rectangular before folding, with a length of 30cm and a width of 12cm. The surface of the plastic plate 1 is smooth, and a silicone-based anti-slip layer 3 is coated in a specific area to enhance the friction and guiding effect on the elastic strip.

[0024] The plastic sheet 1 has crease lines 2 along the predetermined fold lines. These crease lines 2 are formed during the production process by hot pressing or die stamping. Specifically, there are three parallel crease lines 2 on the plastic sheet 1: one in the center and the other two approximately 3 cm from the left and right edges. These crease lines 2 allow the operator to easily and accurately fold the sheet according to the predetermined positions.

[0025] The assembly method of this pull tab device is as follows: First, fold the plastic sheet 1 in half along the central crease line 2 to form a strip with a width of 6cm; then, fold both sides inward along the crease line 2 3cm from the edge, finally forming a guide channel with a cross-section approximately equilateral triangle. After the three folds are completed, the inner diameter of the guide channel formed by the device is approximately 2cm, which matches the width of a standard elastic trouser loop.

[0026] At one end of the plastic plate 1, the edge is specially designed as a slightly outward-curving funnel-shaped opening 4, with an inner diameter of approximately 3.5 cm at the opening 4, gradually decreasing to a standard inner diameter of 2 cm. This design greatly facilitates the initial insertion of the elastic strip and reduces the difficulty of operation.

[0027] The working principle and operation method of this utility model are as follows:

[0028] The operator first folds the plastic plate 1 three times along the pre-set crease line 2 to form a guide channel. Due to the elasticity and memory properties of the plastic material, the three-fold structure remains relatively stable. Then, a complete elastic strip of fabric (usually 80-100cm long and 2-3cm wide) is inserted into the funnel-shaped opening 4 of the pull tube device. Thanks to the funnel-shaped design, even beginners can easily complete this step.

[0029] Next, gently push the elastic strip through the entire guide channel. During this process, the anti-slip layer 3 provides appropriate friction to prevent the strip from sliding too quickly. Once the elastic strip has completely passed through the guide channel, pull it out about half its length from the device. At this point, the strip will naturally fold in half. Fold the folded strip in half again (folding the device end toward the free end), and you will have formed the basic shape of a double-layered elastic waistband.

[0030] Finally, maintaining the double-layer structure, slowly pull the remaining elastic strips out of the device. Due to the special three-fold structure of the guide channel, the strips can maintain uniform tension and alignment during the pulling process, and the pulled-out double-layer elastic trouser loops are directly fed into the sewing machine for sewing and fixing.

[0031] This invention solves several technical problems in the traditional manufacturing process of elastic trouser loops:

[0032] Through a special three-fold structure design, a closed guide channel is formed, allowing the elastic strip to naturally form a uniform double-layer structure when passing through the device. This solves the deformation and displacement problems that occur during traditional manual folding, and significantly improves the production quality and consistency of elastic trousers.

[0033] In addition, the funnel-shaped opening 4 design reduces the difficulty of operation and improves work efficiency, while the anti-slip layer 3 design enhances the control of the elastic strip and reduces operational errors.

[0034] In practical applications, an experienced operator can complete the initial forming of approximately 120-150 elastic waistbands per hour using this device, increasing efficiency by about 40% compared to traditional manual methods. Simultaneously, the dimensional consistency of the finished products is significantly improved, and the rework rate is reduced by approximately 80%.

[0035] Example 2

[0036] This embodiment only adjusts the size of the simple pull tube device. In this embodiment, the plastic plate 1 is 0.5-2mm thick and is rectangular before folding, with a length of 25-35cm and a width of 10-15cm.

[0037] Preferably, the plastic sheet 1 has pre-indentation lines 2 at the folding points on both sides to facilitate precise folding.

[0038] Preferably, the surface of the plastic plate 1 is provided with an anti-slip layer 3 to enhance the guiding effect on the elastic strip.

[0039] Preferably, the inner diameter of the guide channel formed by the three-fold structure matches the width of a standard elastic trouser loop, which is 1.5-3cm.

[0040] The above description is merely a preferred embodiment of the present invention and is not intended to limit the scope of protection of the present invention. Any innovative improvements or substitutions based on the present invention should fall within the scope of the claims of the present invention. Furthermore, the parameters, materials, and processes mentioned in the above embodiments are not unique. Without departing from the technical essence of the present invention, those skilled in the art can make various alternative choices, and these alternative solutions should also be considered to fall within the scope of protection of the present invention.

Claims

1. A simple pull tube device for pulling elastic trouser loops, characterized in that: It includes a foldable board that is folded in half along the center line and then folded in half again along both sides of the center line to form a three-fold structure. The three-fold structure forms a guide channel for guiding the elastic strip through and naturally forming a double-layer structure during the extraction process.

2. The simple pull tube device for elastic trouser loops according to claim 1, characterized in that: The plate is made of thermoplastic and has a thickness of 0.5-2mm.

3. The simple pull tube device for elastic trouser loops according to claim 1, characterized in that: The plate is rectangular before folding, with a length of 25-35cm and a width of 10-15cm.

4. The simple pull tube device for elastic trouser loops according to claim 1, characterized in that: The plate has crease lines at the folds on both sides.

5. The simple pull tube device for elastic trouser loops according to claim 1, characterized in that: The surface of the plate is provided with an anti-slip layer.

6. The simple pull tube device for elastic trouser loops according to claim 1, characterized in that: The inner diameter of the guide channel formed by the three-fold structure is 1.5-3cm.

7. The simple pull tube device for elastic trouser loops according to claim 1, characterized in that: The plate has a funnel-shaped opening at one end.

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