Processing device and processing method for pocket sewn by concealed thread of pocket opening machine

Abstract

The invention discloses a processing device and a processing method for a hidden thread sewn pocket of a pocket opening machine, the processing device comprises a sewing assembly, a laser cutting assembly, a cloth strip flanging assembly and a folding knife assembly, the cloth strip flanging assembly is provided with a mounting plate arranged in a lifting mode and a pressing piece arranged on the mounting plate and capable of transversely moving, and the pressing piece is provided with an abutting surface and an abutting surface; the folding knife assembly is provided with a mounting base arranged in a lifting mode and left and right slotting tools which are arranged on the mounting base and correspond to the left and right turned-over edges in an up-and-down mode. A pressing piece used for containing a cloth strip is arranged, the pressing piece downwards abuts against the cloth strip to be subjected to pocket opening, the pressing piece is matched with a sewing assembly and a laser cutting assembly, the left and right turned edges are sewn to the cloth, the pocket is opened through laser, the middle part of the cloth strip is cut and removed, and the left and right turned edges are sewn to the left and right turned edges of the cloth pocket. The structural strength of the left portion and the right portion of the cloth pocket is enhanced through the sewn hems, and the pocket processing quality and efficiency are guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of garment sewing processing, in particular to a pocket processing device and a pocket processing method for concealed-thread sewing on a bag opening machine. Background Art

[0002] In the clothing processing process, bag opening is an indispensable processing step, which is mainly used to form pockets at specific positions of clothing, which is convenient for carrying small items such as mobile phones and wallets. The process is to first process the bag opening and bag lip separately, and then sew the bag lip to the bag opening to complete the bag opening. The bag opening processing process requires cutting, folding, shaping and sewing the bag lip of the clothing. Cutting is to open an "H" or "Y" shaped slit on the bag opening, folding is to fold the cut bag opening inward to form a flange, and shaping the bag lip is to place the bag lip on the flange, and finally sew. For example, the invention patent with application number CN202010348853.X discloses a bag opening machine for clothing bag opening processing; the invention patent with application number CN202011214831.0 discloses a continuous production clothing bag opening machine.

[0003] Currently, when processing pocket openings, bar tacks are generally used to reinforce the edges of the pocket openings to improve the structural strength and durability of the pockets and prevent problems such as unraveling and deformation during use or washing. However, for fabrics with loose warp and weft density, such as down jackets and denim, the dense sewing holes caused by bar tacks can damage the fabric during processing, thereby affecting the processing quality of the pockets. Summary of the Invention

[0004] The purpose of the present invention is to overcome the above-mentioned deficiencies in the prior art and to provide a pocket processing device and method for concealed-thread sewing on a bag opening machine.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A pocket processing device for concealed sewing on a bag opening machine comprises a sewing assembly, a laser cutting assembly, a cloth flanging assembly and a folding knife assembly arranged above the cloth flanging assembly, the cloth flanging assembly comprising a mounting plate which is arranged to be lifted and lowered, a pressing plate which is arranged on the mounting plate and can be displaced laterally, the pressing plate being provided with a pressing surface for pressing the cloth strip, an abutting surface which is located outside the pressing surface and is used to fold the left and right flangings of the cloth strip inwardly, the folding knife assembly comprising a mounting seat which is arranged to be lifted and lowered, left and right inserting knives which are arranged on the mounting seat and correspond to the left and right flangings above and below.

[0007] Preferably, a pressing cylinder for driving the pressing plate to move laterally is provided on the mounting plate, and a pressing plate and a resisting plate are relatively provided inside and outside the pressing plate, the resisting surface is located on the bottom surface of the pressing plate, and the resisting surface is located on the inner side surface of the resisting plate, and a slot for clamping a cloth strip is provided between the pressing plate and the resisting plate.

[0008] Preferably, the cloth flanging assembly has a lifting cylinder for driving the mounting plate to move up and down, the mounting plate is provided with a translation cylinder for driving the slide plate to move forward and backward, and the pressing plates are provided on both sides of the slide plate.

[0009] Preferably, it also includes an external pressure frame arranged opposite to the folding knife assembly in the upper and lower directions, the mounting seat is provided with front and rear folding knives arranged for front and rear translation, and left and right knife inserting cylinders for driving the left and right knife inserting knives to rise and fall, and a broach is slidably arranged on the external pressure frame opposite to the left and right knife inserting knives in the upper and lower directions, and the broach is provided with a slot for the left and right knife inserting knives to pass through.

[0010] Preferably, the mounting seat is provided with front and rear folding knives that are arranged to move forward and backward, and the left and right inserting knives are arranged to move laterally on the mounting seat.

[0011] Preferably, the external pressure frame is provided with a broach cylinder and a clip for driving the broach to move laterally, and the clip is connected to the clip cylinder and can be driven to press against the external pressure frame.

[0012] Preferably, an inner pressure frame is provided on the outer pressure frame, the processing window of the inner pressure frame is arranged corresponding to the material setting window of the outer pressure frame, the broach is arranged between the material setting window and the processing window, and the broach can slide inward and extend into the processing window.

[0013] Preferably, the outer pressure frame is provided with front and rear telescopic plates connected to the front and rear telescopic cylinders, and left and right telescopic plates connected to the left and right telescopic cylinders. The front and rear telescopic plates slide forward and backward, and the left and right telescopic plates slide left and right and are arranged on the material fixing window.

[0014] The present invention also discloses a method for processing pockets sewn with concealed thread by a bag opening machine, comprising the following steps:

[0015] 1) Set the area to be cut on the fabric and press the fabric strip down to the cutting area of ​​the fabric;

[0016] 2) Sew the left and right sides of the strips and secure the fabric and strips;

[0017] 3) Cut the fabric cutting area to open the fabric bag, and cut off the middle part of the fabric strip, leaving the left and right flaps of the fabric strip sewn to the fabric;

[0018] 4) Fold the left and right edges inward;

[0019] 5) Folding the flaps and left and right flaps of the bag fabric;

[0020] 6) Sew the fabric and turn the left and right edges.

[0021] The beneficial effects of the present invention are:

[0022] By providing a pressing plate for placing a cloth strip, the pressing plate presses the cloth strip downward onto the cloth to be opened, and cooperates with the sewing component and the laser cutting component to sew the left and right flaps on the cloth and open the bag with a laser, and cut and remove the middle part of the cloth strip. At the same time, the left and right flaps are folded inward, and then the cloth pocket and the left and right flaps are folded by the bag folding process, so as to carry out subsequent pocket sewing operations. The present invention sews the left and right flaps at the left and right folded edges of the cloth pocket to strengthen the structural strength of the left and right parts of the cloth pocket by sewing the seams, thereby overcoming the defect that the needle holes sewn when the existing pockets need to be reinforced by tying a bar knot are easy to damage the cloth, thereby ensuring the processing quality and production efficiency of the pocket. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural schematic diagram of the present invention;

[0024] Figure 2 It is a partial explosion schematic diagram of the present invention;

[0025] Figure 3 Schematic diagram of the coordination between the cloth strip cuff assembly and the cloth strip of the present invention;

[0026] Figure 4 for Figure 3 A magnified schematic diagram of point A in the middle;

[0027] Figure 5 This is a schematic structural diagram of a cloth cuff assembly according to the present invention;

[0028] Figure 6 This is a structural diagram of the external pressure frame of the present invention;

[0029] Figure 7 Schematic diagram of the cooperation between the folding knife assembly and the broach of the present invention.

[0030] In the figure: cloth strip flanging assembly 1, mounting plate 11, lifting cylinder 12, slide plate 13, translation cylinder 14, pressing cylinder 15, pressing plate 16, pressing plate 161, abutment plate 162, slot 163, outer pressure frame 2, fixing window 21, front and rear telescopic plates 22, front and rear telescopic cylinder 23, left and right telescopic plates 24, left and right telescopic cylinder 25, broach 26, notch 261, broach cylinder 27, clip 28, clip cylinder 29, inner pressure frame 3, processing window 31, folding knife assembly 4, mounting seat 41, left and right inserting knives 42, left and right inserting knife cylinders 43, front and rear folding knives 44, cloth strip 5, left and right flanging 51. DETAILED DESCRIPTION

[0031] The present invention will be further described below with reference to the accompanying drawings and specific embodiments:

[0032] In the description of this specification, the directions or positional relationships indicated by the terms "up", "down", "left", "right", etc. are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or unit referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the present invention.

[0033] Example 1:

[0034] like Figures 1 to 7 As shown, a pocket processing device for concealed sewing by a bag opening machine includes a sewing component, a laser cutting component, a cloth flanging component 1, a folding knife component 4 arranged above the cloth flanging component 1, and an external pressure frame 2 arranged opposite to the folding knife component 4. An internal pressure frame 3 is provided on the external pressure frame 2. The external pressure frame 2 is movably arranged on the processing table of this embodiment. The external pressure frame 2 is used to place the cloth for the pocket to be processed, and the internal pressure frame 3 can move and press the cloth fixed on the external pressure frame 2.

[0035] Specifically, the processing window 31 of the inner pressure frame 3 is provided corresponding to the material setting window 21 of the outer pressure frame 2, so that the processing window 31 cooperates with the sewing component and the laser cutting component to sew, cut and process the fabric.

[0036] Furthermore, the outer pressure frame 2 is provided with a front and rear telescopic plate 22 connected to the front and rear telescopic cylinders 23, and a left and right telescopic plate 24 connected to the left and right telescopic cylinders 25. The front and rear telescopic plates 22 slide forward and backward, and the left and right telescopic plates 24 slide left and right and are arranged in the material fixing window 21, so as to provide an operating gap for the subsequent pocket sewing process through the telescopic sliding of the front and rear telescopic plates 22 and the left and right telescopic plates 24.

[0037] The front and rear telescopic plates 22 and the left and right telescopic plates 24 can also be driven by a cylinder on each side to achieve inward or outward telescopic sliding. For details, please refer to the utility model patent with application number 202020681381.5: A bag mouth fixing mechanism for opening clothing bags.

[0038] The cloth flanging assembly 1 has a mounting plate 11 that is set to be lifted and lowered, and a pressing plate 16 that is arranged on the mounting plate 11 and can be displaced laterally. The cloth flanging assembly 1 has a lifting cylinder 12 that drives the mounting plate 11 to be lifted and lowered, so that the mounting plate 11 and the pressing plate 16 are driven to be lifted and lowered by the lifting cylinder 12. A cloth strip 5 is placed on the pressing plate 16, and the cloth strip 5 is driven downward by the pressing plate 16 to move and press against the cloth of the outer pressure frame 2.

[0039] The mounting plate 11 is provided with a translation cylinder 14 for driving the slide plate 13 to move forward and backward, and the mounting plate 11 is provided with a pressing cylinder 15 for driving the pressing plate 16 to move laterally. The translation cylinder 14 cooperates with the lifting cylinder 12 to press the left and right sides of the cloth strip 5 onto the cloth in the processing window 31, and the pressing plate 16 is provided on both sides of the slide plate 13 to drive the pressing plates 16 on both sides to move laterally inward or outward through the pressing cylinder 15.

[0040] The pressing plate 16 is provided with a pressing surface for pressing the cloth strip 5, and an abutting surface located outside the pressing surface and used to fold the left and right flanges 51 of the cloth strip 5 inward. Specifically, a pressing plate 161 and an abutting plate 162 are provided on the inside and outside of the pressing plate 16 opposite to each other, and a clamping groove 163 for clamping the cloth strip 5 is provided between the pressing plate 161 and the abutting plate 162. The left and right sides of the cloth strip 5 to be processed are clamped by the clamping grooves 163 of the left and right pressing plates 16.

[0041] The pressing surface is located on the bottom surface of the pressing plate 161, and the contact surface is located on the inner side surface of the contact plate 162. The pressing plate 161 is used to press the cloth strip 5 downward, that is, the pressing plates 161 on both sides can move downward and press the two sides of the cloth strip 5 to fix it on the cloth, and cooperate with the sewing component and the laser cutting component to sew the left and right flanges 51 on the cloth and open the bag by laser, and remove the middle part of the cloth strip 5 by laser cutting.

[0042] Specifically, the cloth strip 5 on the inner side of the pressing plate 161 is first sewn to the cloth along its width direction by a sewing component, and then the cloth between the two pressing plates 161 is laser cut to open the pocket by a laser cutting component. At the same time, the middle part of the cloth strip 5 is cut off, that is, the part between the left and right flanges 51 is removed, and the left and right flanges 51 are sewn to the cloth of the opened bag by sewing.

[0043] This embodiment sews the left and right flaps 51 to the left and right folded edges of the fabric pocket to strengthen the structural strength of the left and right parts of the fabric pocket through the sewn seams, thereby overcoming the defect that the needle holes sewn when the pockets are reinforced by tying bar tacking are easy to damage the fabric, thereby ensuring the processing quality and production efficiency of the pockets.

[0044] The abutment plate 162 is used to fold the left and right edges 51 of the cloth strip 5 inward. Figure 4 As shown, the abutment plate 162 drives the two pressing plates 16 to move inwards by the pressing cylinder 15, that is, the abutment plates 162 on both sides are folded inwards to fold the left and right flanges 51.

[0045] The folding knife assembly 4 has a mounting seat 41 that is lifted and lowered, and left and right inserting knives 42 that are arranged on the mounting seat 41 and correspond to the left and right flanges 51 up and down. The left and right inserting knives 42 can move downward with the mounting seat 41 and further fold the left and right flanges 51 downward.

[0046] Specifically, the mounting seat 41 is provided with front and rear folding knives 44 that are arranged to move forward and backward, and left and right knife cylinders 43 for driving the left and right knife blades 42 to rise and fall. The external pressure frame 2 is slidingly provided with a broach 26 that is opposite to the left and right knife blades 42 up and down. The external pressure frame 2 is provided with a broach cylinder 27 and a clip 28 that drive the broach 26 to move laterally. The broach 26 is arranged between the material fixing window 21 and the processing window 31. The broach cylinder 27 can drive the broach 26 to slide laterally, that is, the broach 26 can slide inward and extend into the processing window 31.

[0047] The broach 26 is provided with a slot 261 for the left and right insert knives 42 to pass through. When the broach 26 slides inward and extends into the processing window 31, the left and right insert knives 42, the left and right flanges 51, and the slot 261 are arranged in correspondence with each other. Then, the left and right insert knives 42 can be used to flip the left and right flanges 51 downward until they pass through the corresponding slots 261, and then the left and right insert knives 42 are driven to move upward to disengage from the slot 261.

[0048] When a Y-shaped crack is formed on the fabric, the left and right folded edges of the fabric and the left and right folded edges 51 of the fabric strip 5 pass through the notch 261 together.

[0049] The broach 26 slides outward to fold the left and right flanges 51 outward, and at this time, the front and rear folding knives 44 extend into the processing window 31 and move forward and backward, thereby realizing the folding operation of the pocket.

[0050] The clip 28 is connected to the clip cylinder 29 and can be driven to press against the external pressure frame 2, that is, the clip cylinder 29 drives the clip 28 to move and press against the bottom of the external pressure frame 2 to clamp the flap of the shaped bag.

[0051] The subsequent folding knife assembly 4 is retracted, and the bag cloth and bag lip are placed again, and the pocket is subsequently sewed by the sewing assembly.

[0052] This embodiment also discloses a method for processing pockets sewn with concealed thread by a bag opening machine, comprising the following steps:

[0053] 1) Place the fabric to be bagged on the outer pressure frame 2 and set the area to be cut on the fabric. Drive the inner pressure frame 3 downward to clamp the fabric in cooperation with the outer pressure frame 2, so as to press the fabric strip 5 down to the cutting area of ​​the fabric.

[0054] 2) moving the outer pressing frame 2 to move the fabric and the fabric strip 5 to the sewing assembly, and sewing the left and right turning edges 51 to sew the fabric and the fabric strip 5 together, that is, sewing the left and right sides of the fabric strip 5 together to sew the fabric and the fabric strip 5 up and down through the left and right sewn edges;

[0055] 3) Move the outer pressure frame 2 to the laser cutting assembly to cut the fabric cutting area to open the fabric bag, and cut off the middle part of the fabric strip 5, leaving the left and right flaps 51 of the fabric strip 5 sewn and fixed to the fabric;

[0056] 4) driving the pressing plate 16 to move inward to fold the left and right flanges 51 inward, and moving the left and right inserting blades 42 downward to fold the left and right flanges 51 downward;

[0057] 5) Move the outer pressure frame 2 to the folding knife assembly 4 to fold the fabric pocket, and fold the left and right flaps 51 to the sides. Then, retract the clamping piece 28 to clamp and fix the flaps and the left and right flaps 51 of the fabric pocket, that is, the flaps and the left and right flaps 51 of the folded fabric pocket;

[0058] 6) Sewing: Move the outer pressure frame 2 to the sewing assembly, and sew after placing the bag cloth and bag lip, that is, sew the cloth and the left and right flanges 51, and then cut the material to complete the pocket processing.

[0059] Example 2:

[0060] The difference between this embodiment and embodiment 1 is that the broach 26 and the broach cylinder 27 are not provided in this embodiment. Specifically, the mounting seat 41 of this embodiment is provided with front and rear folding knives 44 that are arranged to move forward and backward, and the left and right inserting knives 42 are arranged to move laterally on the mounting seat 41. The front and rear folding knives 44 and the left and right inserting knives 42 descend through the mounting seat 41 and extend into the processing window 31, and by driving the left and right inserting knives 42 to move laterally left and right, the downward folding and outward folding operations of the left and right flanges 51 are realized.

[0061] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A pocket processing device for a bag opening machine with concealed stitching, characterized in that: The invention comprises a sewing assembly, a laser cutting assembly, a cloth flanging assembly (1), and a folding knife assembly (4) arranged above the cloth flanging assembly (1), wherein the cloth flanging assembly (1) comprises a mounting plate (11) which is arranged to be lifted and lowered, a pressing plate (16) which is arranged on the mounting plate (11) and can be displaced laterally, the pressing plate (16) is provided with a pressing surface for pressing the cloth strip (5), and an abutting surface which is located outside the pressing surface and is used to fold the left and right flanging edges (51) of the cloth strip (5) inwardly, and the folding knife assembly (4) comprises a mounting seat (41) which is arranged to be lifted and lowered, and left and right inserting knives (42) which are arranged on the mounting seat (41) and correspond to the left and right flanging edges (51) in the upper and lower directions.

2. The pocket processing device for concealed sewing of a bag opening machine according to claim 1, characterized in that: The mounting plate (11) is provided with a pressing cylinder (15) for driving the pressing plate (16) to move laterally. A pressing plate (161) and a resisting plate (162) are provided on the pressing plate (16) opposite to each other inside and outside. The resisting surface is located on the bottom surface of the pressing plate (161), and the resisting surface is located on the inner side surface of the resisting plate (162). A slot (163) for clamping the cloth strip (5) is provided between the pressing plate (161) and the resisting plate (162).

3. The pocket processing device for concealed sewing of a bag opening machine according to claim 1, characterized in that: The cloth strip flanging assembly (1) has a lifting cylinder (12) for driving the mounting plate (11) to move up and down, and a translation cylinder (14) for driving the slide plate (13) to move forward and backward is provided on the mounting plate (11). The pressing plates (16) are provided on both sides of the slide plate (13).

4. The pocket processing device for concealed sewing of a bag opening machine according to any one of claims 1 to 3, further comprising an outer pressure frame (2) disposed above and below the folding knife assembly (4), characterized in that: The mounting seat (41) is provided with front and rear folding knives (44) that are arranged to move forward and backward, and left and right knife inserting cylinders (43) for driving the left and right knife inserting knives (42) to rise and fall. The external pressure frame (2) is slidably provided with a broach (26) that is opposite to the left and right knife inserting knives (42) in the upper and lower directions. The broach (26) is provided with a notch (261) for the left and right knife inserting knives (42) to pass through.

5. A pocket processing device for a bag opening machine with concealed stitching according to any one of claims 1 to 3, characterized in that: The mounting seat (41) is provided with front and rear folding knives (44) that are arranged to move forward and backward, and the left and right inserting knives (42) are arranged to move laterally on the mounting seat (41).

6. The pocket processing device for concealed sewing of a bag opening machine as claimed in claim 4, characterized in that: The external pressure frame (2) is provided with a broach cylinder (27) and a clamp (28) for driving the broach (26) to move laterally. The clamp (28) is connected to the clamp cylinder (29) and can be driven to press against the external pressure frame (2).

7. The pocket processing device for concealed sewing of a bag opening machine as claimed in claim 4, characterized in that: An inner pressure frame (3) is provided on the outer pressure frame (2); a processing window (31) of the inner pressure frame (3) is provided corresponding to a material setting window (21) of the outer pressure frame (2); the broach (26) is provided between the material setting window (21) and the processing window (31); and the broach (26) can slide inwardly and extend into the processing window (31).

8. The pocket processing device for concealed sewing of a bag opening machine according to claim 7, characterized in that: The outer pressure frame (2) is provided with a front and rear telescopic plate (22) connected to the front and rear telescopic cylinders (23), and a left and right telescopic plate (24) connected to the left and right telescopic cylinders (25). The front and rear telescopic plates (22) slide forward and backward, and the left and right telescopic plates (24) slide left and right, and are arranged on the material setting window (21).

9. A method for processing pockets sewn with concealed thread by a bag opening machine, characterized in that: The following steps are involved: 1) setting an area to be cut on the fabric, and pressing the fabric strip (5) down to the cutting area of ​​the fabric; 2) Sewing the left and right sides of the cloth strip (5) and sewing the fabric and the cloth strip (5) together; 3) cutting the cutting area of ​​the fabric to open the fabric, and cutting off the middle part of the fabric strip (5), leaving the left and right flaps (51) of the fabric strip (5) sewn and fixed to the fabric; 4) Folding the left and right flanges (51) inwards; 5) Folding bag fabric cuffs and left and right cuffs (51); 6) Sew the fabric and the left and right hems (51).

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