Front and rear folding knife structure of bag opening machine

Abstract

The utility model discloses a front and rear folding knife structure of a bag opening machine, which comprises a front folding knife and a rear folding knife which are distributed front and back and provided with acting edges at the lower parts, the front folding knife and the rear folding knife are provided with mutually staggered tooth-shaped grooves, and the front folding knife and the rear folding knife can be mutually staggered and meshed through the tooth-shaped grooves. The structure that the staggered tooth-shaped grooves of the front folding knife and the rear folding knife are meshed or separated is utilized, indirect adjustment of respective acting edges of the front folding knife and the rear folding knife is achieved, after complete meshing, the folding edge width of the front folding knife and the folding edge width of the rear folding knife are fused, namely the folding edge width of the two folding knives becomes the width of one folding knife, and the folding knives can smoothly shape and fold edges after penetrating through pocket folding edges. And the width of the folding knife for smoothing the folded edge of the pocket is increased, so that the seam allowance of the pocket is more stable, the size of the pocket which can be made is smaller, and the application range of the folding knife is wider.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of bag opening machine accessory structure, especially to a front and rear folding knife structure of bag opening machine. BACKGROUND

[0002] In the garment processing process, the bag opening machine is an essential auxiliary processing machine, mainly used for forming a pocket at a specific position of the garment to facilitate carrying small items such as mobile phones and wallets. The traditional method is to separately process the bag opening and the bag lip zipper, and then sew the bag lip or the zipper to the bag opening to complete the bag opening.

[0003] For example, the invention patent with the patent number ZL202022514163.5 discloses a continuous production garment bag opening machine. The upper plate mechanism is used to position the lower supporting plate below the bag folding device and to support the bag lip or the zipper. After the bag lip or the zipper is moved with the material positioning device and processed in the sewing device, the lower supporting plate resetting device moves it to the position below the bag folding device, achieving timely resetting to facilitate the repositioning of the bag lip or the zipper for processing, realizing continuous processing and improving processing efficiency.

[0004] The bag folding mechanism is an important component of the bag opening machine. It uses folding knives to move the cutting edges generated by cutting the bag opening to the four directions or only to the front and back directions to complete the bag folding action. For example, the utility model patent with the patent number ZL202020675344.3 discloses a bag opening folding mechanism for garment bag opening processing. The front and rear folding knives of the mechanism have action edges extending in the front and back directions. Another utility model patent with the patent number ZL202220586041.3 or ZL202221657762.5 discloses two bag folding methods, both of which introduce a lower insertion type folding knife. The action edge of this type of folding knife does not extend in the front and back directions. It is on the same action line as the folding knife body, which is the lower part of the folding knife itself. Whether the folding knife moves to the four directions or the lower insertion type folding knife, the folding edge width (the distance between the action edges of the front and rear folding knives) of the front and rear folding knives of the bag opening machine is controlled by the pocket type width range. For small size narrow pockets, the folding knife cannot pass through the pocket smoothly, and it often needs to be customized and replaced to process different size pockets. UTILITY MODEL CONTENTS

[0005] The purpose of the utility model is to provide a front and rear folding knife structure of a bag opening machine to improve the adaptability of processing different size pockets and make the pocket folding edge fold more smoothly.

[0006] The above technical purpose of the utility model is achieved by the following technical scheme: a front and rear folding knife structure of a bag opening machine, including a front folding knife and a rear folding knife distributed in front and back and having action edges at the lower part, the front folding knife and the rear folding knife have tooth-shaped grooves that are interlaced with each other, and the front folding knife and the rear folding knife can be toothed with each other through the tooth-shaped grooves.

[0007] Preferably, the front folding knife and the rear folding knife are each composed of a plurality of folding knife pieces arranged evenly at intervals, and the tooth-shaped grooves of the front folding knife and the rear folding knife are distributed in a staggered manner.

[0008] Preferably, the upper portions of the front folding knife and the rear folding knife are arranged on the mounting plate.

[0009] Preferably, the front folding knife, the rear folding knife and the mounting plate are arranged integrally or fixed separately.

[0010] Preferably, the folding knife piece comprises a connecting portion, an extending portion and an acting portion, wherein the connecting portion and the acting portion are arranged on the same side of the extending portion.

[0011] The utility model discloses a front folding knife and a rear folding knife staggered tooth-shaped grooves complete the structure of the engagement or separation, reach the indirect adjustment of the respective acting edge of the front folding knife and the rear folding knife, and after complete engagement, the folding edge width of the front folding knife and the rear folding knife will fuse, i.e. the width of the folding edge of the two folding knives becomes the width of one folding knife, and the folding knife can be smoothly shaped after passing through the pocket folding edge, and the width of the folding knife is increased to smooth the pocket folding edge, so that the pocket stopper is more stable, the pocket size can be smaller, and the folding knife is more widely applicable. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is a structural schematic view of the utility model;

[0013] Figure 2 It is a structural schematic view of the rear folding knife of the utility model;

[0014] Figure 3 It is a structural schematic view of the utility model in a state of looking up;

[0015] Figure 4 It is a structural schematic view of the utility model in a state of separation;

[0016] Figure 5 It is a structural schematic view of the utility model in a side-by-side state;

[0017] Figure 6 It is a structural schematic view of the utility model in a state of engagement;

[0018] Figure 7 It is a structural schematic view of the utility model in a state of the acting edge being vertical.

[0019] Reference signs: 1, acting edge; 2, front folding knife; 3, rear folding knife; 4, tooth-shaped groove; 5, folding knife piece; 6, mounting plate. DETAILED DESCRIPTION

[0020] The following described is only the preferred embodiment of the utility model, the protection scope is not only limited to this example, all belongs to the technical scheme under the idea of the utility model should belong to the protection scope of the utility model, should point out simultaneously for the ordinary skill in the art in this technical field, under the premise of not departing from the principle of the utility model, a number of improvements and refinements, these improvements and refinishes should also be regarded as the protection scope of the utility model.

[0021] It should be noted that, in this paper, such as first and second relationship terms are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between the entities or operations.

[0022] In the present embodiment, the orientation words such as "up, down, left, right" are only used to understand the relationship between the features or parts and the like by the skilled in the art with the help of the drawings.

[0023] As shown in Figures 1 to 7 , the utility model discloses a front and rear folding knife structure of bag opening machine, including the front folding knife 2 and rear folding knife 3 with the action edge 1 in lower part and distributing front and rear, wherein the action edge 1 is integrated with folding knife, it needs to be explained that the action edge 1 can be vertically arranged with folding knife, and can be parallelly arranged, the front folding knife 2 and rear folding knife 3 have interlaced tooth-shaped groove 4, the front folding knife 2 and rear folding knife 3 can be mutually misaligned and meshed through tooth-shaped groove 4, when the front folding knife 2 and rear folding knife 3 separate, it is opening state, refer to Figure 4 , and it is merging state when side by side, refer to Figure 5 , the folding edge width of front and rear folding knives is the minimum width of bag folding in prior art, and in the present application, the misaligned meshing is used to be meshing state, refer to Figure 6 ; the folding edge width A of folding knife is right folding knife B1+left folding knife B2, and the folding edge width A of folding knife in the utility model is B1 or B2, to cope with small size pocket folding edge.

[0024] Specifically, the front folding knife 2 and the rear folding knife 3 are each composed of a plurality of folding blade pieces 5 arranged at intervals, the tooth-shaped grooves 4 are formed between the adjacent two folding blade pieces 5, and the tooth-shaped grooves 4 of the front folding knife 2 and the rear folding knife 3 are distributed in an interlaced manner. When folding, the folding blade pieces 5 of the rear folding knife 3 are inserted into the corresponding tooth-shaped grooves 4 in the front folding knife 2, so that the front folding knife 2 and the rear folding knife 3 are folded and tightened to the minimum folding edge width. In the present embodiment, the cross section of the tooth-shaped groove 4 is rectangular, which can also be conical or triangular.

[0025] Specifically, the upper parts of the front folding knife 2 and the rear folding knife 3 are arranged on the mounting plate 6, and the mounting plate 6 is provided with a hole position for connecting a driving part of a folding knife mechanism, so as to realize the lifting or transverse moving action of the front and rear folding knives. The folding knife blade 5 comprises a connecting part, an extending part and an acting part, the extending part is arranged vertically, and the acting part is distributed perpendicularly to the extending part. The connecting part is used for connecting the mounting plate 6, and the acting part is used for the acting edge 1 acting on the pocket folding bag. The connecting part and the acting part are arranged on the same side of the extending part, and the folding edge width is further reduced.

[0026] Specifically, the front folding knife 2 and the rear folding knife 3 are arranged integrally or fixed separately with the mounting plate 6. When arranged separately, the front folding knife 2 or the rear folding knife 3 is fixed on the mounting plate 6 by using the existing connection mode such as welding or screwing. In order to facilitate processing, the structure of integral arrangement is adopted in the embodiment, and the mounting plate 6 and the folding knife part are processed integrally by a lathe.

[0027] The above embodiment is a description of the utility model, not a limitation of the utility model, and any simple transformation of the utility model belongs to the protection range of the utility model.

Claims

1. A front and back folding knife structure of a bag opening machine comprising a front folding knife (2) and a back folding knife (3) which are distributed front and back and have an active edge (1) at the lower part, characterized in that, The front folding knife (2) and the rear folding knife (3) have interlaced tooth-shaped grooves (4), and the front folding knife (2) and the rear folding knife (3) can be interlocked by the tooth-shaped grooves (4).

2. The front and back folding knife structure of a bag opening machine according to claim 1, characterized in that, The front folding knife (2) and the rear folding knife (3) are both composed of a plurality of folding blade pieces (5) arranged at equal intervals, and the tooth-shaped grooves (4) are formed between the adjacent two folding blade pieces (5), and the tooth-shaped grooves (4) of the front folding knife (2) and the rear folding knife (3) are distributed in an interlaced manner.

3. The front and back folding blade structure of a bag opener according to claim 1 or 2, characterized in that, The upper part of the front folding knife (2) and the rear folding knife (3) is arranged on the mounting plate (6).

4. The front and back folding blade structure of a bag opener according to claim 3, characterized in that: The front folding knife (2), the rear folding knife (3) and the mounting plate (6) are arranged in an integrated manner or are fixed in a separate manner.

5. The front and back folding blade structure of a bag opener according to claim 2, characterized in that: The folding blade piece (5) comprises a connecting portion, an extending portion and an acting portion, and the connecting portion and the acting portion are arranged on the same side of the extending portion.

Images