A bag sewing overlock puller

Abstract

The utility model provides a kind of bag sewing with edge binding pull cylinder, including inner folding plate, outer folding plate and hot cutter.First inner guide plate and second inner guide plate are composed of mutually discontinuous settings in inner folding plate;First outer guide plate and second outer guide plate are composed of mutually discontinuous settings in outer folding plate;Hot cutter is slidably arranged in the discontinuous gap of inner folding plate and outer folding plate, and hot cutter can be heated by electrification and is driven to slide in gap.In the utility model, inner folding plate and outer folding plate are both designed in sectional type, and gap close to the discharge port of edge binding pull cylinder is reserved between two parts, when bag sewing reaches the end, operator can cut off edge binding material in the position close to the discharge port of pull cylinder, the length of reserved edge binding material is shorter, and the accuracy of reservation can be significantly improved, so as to reduce the problem of inaccurate length of edge binding material reservation.

Description

Technical Field

[0001] This utility model belongs to the field of bag technology, specifically referring to a binding pull tube for sewing bags. Background Technology

[0002] In the sewing process of bags and luggage, the edge binding process often requires the use of an edge binding puller. The edge binding puller can automatically fold the edge binding material into the required shape, such as a loose fold, single fold, or double fold. When sewing is nearing its end, the operator needs to cut the edge binding material in advance to prepare for sewing the next bag or luggage.

[0003] However, because the binding tube uses a continuous sheet metal structure, the binding material can only be cut in the area before it enters the tube. At this point, there is still a section of binding material between the cutting point and the tube's outlet; this length is the remaining amount needed for sewing the current bag. Therefore, operators must calculate the cutting position in advance before the bag is finished sewing to ensure that the remaining length to be sewn on the bag strictly matches the length of the binding material from the cutting point to the outlet.

[0004] This process relies heavily on the operator's experience and judgment. In practice, it is easy to encounter problems such as the reserved binding material being too short or too long, which affects sewing efficiency and quality. Utility Model Content

[0005] In view of the above situation and to overcome the defects of the prior art, this utility model provides a binding pull tube for sewing bags, which at least partially solves the above problems.

[0006] The technical solution adopted by this utility model is as follows: This utility model proposes a binding pull tube for sewing bags, comprising:

[0007] The inner folding plate consists of a first inner guide plate and a second inner guide plate that are disconnected from each other;

[0008] An outer folding plate is stacked on the inner folding plate and consists of a first outer guide plate and a second outer guide plate that are disconnected from each other;

[0009] A hot cutting blade is slidably disposed in the gap between the inner folded plate and the outer folded plate. The hot cutting blade can be heated by electricity and driven to slide in the gap.

[0010] Furthermore, the first inner guide plate and the second inner guide plate are connected on both sides by a bent connecting rod, and the bent part of the connecting rod forms a clearance space for avoiding the hot cutting blade.

[0011] Furthermore, the first outer guide plate is embedded on the first inner guide plate, and the second outer guide plate is stacked on the second inner guide plate.

[0012] Furthermore, a pressure plate is installed on the connecting rod, and the pressure plate presses against the surface of the second outer guide plate.

[0013] Furthermore, a guide belt is installed at the feed end of the inner folding plate, and the guide belt has a U-shaped bending structure.

[0014] Furthermore, the side wall of the first inner guide plate is provided with a vertically arranged angle adjustment plate, which has a tapered structure.

[0015] The beneficial effects of this utility model are as follows: Both the inner folding plate and the outer folding plate adopt a segmented design, and a gap is reserved between the two parts near the material outlet of the edge binding tube. When the bag is sewn to the end, the operator can cut the edge binding material near the material outlet of the tube. The reserved edge binding material is shorter, which can significantly improve the reserved accuracy and reduce the problem of inaccurate reserved length of edge binding material. Attached Figure Description

[0016] Figure 1 This is a front view of a binding pull tube for sewing bags according to an embodiment of the present utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the edge-binding tube for sewing bags according to an embodiment of the present utility model;

[0018] Figure 3 This is an exploded view of the inner folding plate, the pressure plate, and the outer folding plate.

[0019] Among them, 1. Angle adjustment plate, 2. Inner folding plate, 2-1. First inner guide plate, 2-2. Second inner guide plate, 3. Outer folding plate, 3-1. First outer guide plate, 3-2. Second outer guide plate, 4. Belt guide, 5. Hot cutting knife, 6. Connecting rod, 7. Pressure plate.

[0020] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0022] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0023] like Figures 1-3 As shown in the embodiment of this utility model, a binding pull tube for sewing bags includes an inner folding plate 2, an outer folding plate 3, and a hot cutting knife 5. The inner folding plate 2 is composed of a first inner guide plate 2-1 and a second inner guide plate 2-2 that are disconnected from each other. The outer folding plate 3 is stacked on top of the inner folding plate 2 to form the binding pull tube. The outer folding plate 3 is composed of a first outer guide plate 3-1 and a second outer guide plate 3-2 that are disconnected from each other. During sewing, the binding material is passed through the gap between the inner folding plate 2 and the outer folding plate 3. Both the inner folding plate 2 and the outer folding plate 3 are configured with a wavy structure. The binding material is folded into the required shape (such as frayed edges, single fold, or double fold) by the action of the inner folding plate 2 and the outer folding plate 3, and then led out from the outlet end of the binding pull tube. Simply wrap it around the side of the bag to be sewn; the hot cutter 5 is slidably set in the gap between the inner folding plate 2 and the outer folding plate 3. The hot cutter 5 can be heated by electricity and slide back and forth in the gap. When the bag is sewn to the end, the hot cutter 5 is heated by electricity and then driven to the top of the binding material to cut the binding material. The cut binding material continues to be pulled by the sewing equipment to sew the end of the bag. In order to accurately control the length of the cut binding material and make the reserved binding material match the length of the unsewn area, the shorter the second inner guide plate 2-2 and the second outer guide plate 3-2, the shorter the length of the cut binding material, and the better the cutting accuracy. Therefore, the gap between the inner folding plate 2 and the outer folding plate 3 is set close to the sewing end.

[0024] In some embodiments, in order to fix the first inner guide plate 2-1 and the second inner guide plate 2-2, the two sides of the first inner guide plate 2-1 and the second inner guide plate 2-2 are connected by a bent connecting rod 6. The bent part of the connecting rod 6 forms a clearance space for avoiding the hot cutting blade 5. When the hot cutting blade 5 slides up and down, the hot cutting blade 5 will not interfere with the connecting rod 6.

[0025] In some embodiments, in order to fix the first outer guide plate 3-1 and prevent the edging material from loosening when passing through the first outer guide plate 3-1, and to avoid abnormal folding of the edging material, the first outer guide plate 3-1 is embedded on the first inner guide plate 2-1. The first inner guide plate 2-1 is provided with a side plate for fitting (not shown in the figure). In use, the first outer guide plate 3-1 is slid horizontally on the first inner guide plate 2-1 so that the first outer guide plate 3-1 fits with the side plate on the first inner guide plate 2-1. The second outer guide plate 3-2 is simply stacked on the second inner guide plate 2-2. In order to fix the second outer guide plate 3-2, a pressure plate 7 is installed on the connecting rod 6. The pressure plate 7 can be removed by bolts. The pressure plate 7 presses against the surface of the second outer guide plate 3-2, thereby pressing the second outer guide plate 3-2 tightly on the second inner guide plate 2-2, and preventing the gap between the second inner guide plate 2-2 and the second outer guide plate 3-2 from shaking.

[0026] In some embodiments, in order to keep the edge binding material fixed during feeding and to reserve space for the subsequent addition of automatic feeding equipment (i.e., using rollers to drive the edge binding material to slide), a guide belt 4 is installed at the feeding end of the inner folding plate 2. The guide belt 4 has a loop-shaped bending structure. When in use, the edge binding material is wrapped around the loop-shaped structure of the guide belt 4.

[0027] In some embodiments, the side wall of the first inner guide plate 2-1 is provided with a vertically arranged angle adjustment plate 1. The angle adjustment plate 1 has a tapered structure, and the tapered structure of the angle adjustment plate 1 can be configured to be angle-adjustable, thereby changing the angle of the material outlet of the edge-binding pull tube so that it is close to the sewing equipment. At the same time, the side of the angle adjustment plate 1 is located inside the first inner guide plate 2-1 and the first outer guide plate 3-1, that is, a distance needs to be reserved between the angle adjustment plate 1 and the gap between the inner folding plate 2 and the outer folding plate 3 to avoid interference with the hot cutting blade 5.

[0028] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0029] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A bag sewing overlock puller characterized by, include: The inner folding plate (2) is composed of a first inner guide plate (2-1) and a second inner guide plate (2-2) that are disconnected from each other; The outer folding plate (3) is stacked on the inner folding plate (2) and is composed of a first outer guide plate (3-1) and a second outer guide plate (3-2) that are disconnected from each other; A hot cutting blade (5) is slidably disposed in the gap between the inner folded plate (2) and the outer folded plate (3). The hot cutting blade (5) is electrically heated and driven to slide in the gap.

2. The edge-binding tube for sewing bags according to claim 1, characterized in that: The first inner guide plate (2-1) and the second inner guide plate (2-2) are connected on both sides by a bent connecting rod (6), and the bent part of the connecting rod (6) forms a clearance space for avoiding the hot cutting blade (5).

3. The edge-binding tube for sewing bags according to claim 2, characterized in that: The first outer guide plate (3-1) is embedded on the first inner guide plate (2-1), and the second outer guide plate (3-2) is stacked on the second inner guide plate (2-2).

4. The edge-binding tube for sewing bags according to claim 3, characterized in that: A pressure plate (7) is installed on the connecting rod (6), and the pressure plate (7) presses against the surface of the second outer guide plate (3-2).

5. The edge-binding tube for sewing bags according to claim 1, characterized in that: The feed end of the inner folding plate (2) is equipped with a guide belt (4), which has a U-shaped bending structure.

6. The edge-binding tube for sewing bags according to claim 1, characterized in that: The side wall of the first inner guide plate (2-1) is provided with a vertically arranged angle adjustment plate (1), and the angle adjustment plate (1) has a tapered structure.

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