Integrated double-needle edge-sealing guide tube with different diameter

Abstract

This invention relates to an integrated, variable-diameter double-needle binding guide tube, solving the problems of insufficient strength and aesthetics in existing single-needle binding, low efficiency and high difficulty in double-needle binding, and the inapplicability of existing binding tubes. The device includes a base plate and a snap-on plate, forming a binding strip channel between them. The binding strip channel conveys the binding strip from front to back, with a straight opening at the input end and a W-shaped opening at the output end. A U-shaped pull-out outlet is connected to the base plate at a 90-degree bend in the middle of the output section of the binding strip channel. Upper and lower stop guide nozzles are respectively provided on the upper and lower sides of the output end of the binding strip channel and the U-shaped pull-out outlet, with the lower stop guide nozzle being longer than the upper stop guide nozzle. This invention, through the variable-diameter tube structure design, directly completes the staggered folding of the upper and lower stops when the binding strip is pulled out, giving the binding structure a layered feel, reducing the difficulty of double-needle binding, improving production efficiency, and enhancing binding quality.

Description

TECHNICAL FIELD

[0001] The present application belongs to the field of clothing making tool accessories, and relates to a binding auxiliary tool, in particular to an integrated double-needle binding guide puller with different diameters. BACKGROUND

[0002] In clothing production, the puller binding process is often used. The function of the puller is to fold the binding strip through the guide of the puller arc surface, so that the binding strip forms a folded binding structure, and then is sewn by a sewing machine. The puller is generally formed by buckling a bottom plate and a buckle plate, and a guide channel is formed between the bottom plate and the buckle plate. The inlet of the guide channel is a straight opening, and the binding strip is folded and guided into a V-shaped or W-shaped opening through an arc surface, so that the binding strip is output in a folded state, and then is pulled out at a 90-degree angle from a U-shaped puller outlet to form a folded binding. The binding stopper of the ordinary puller is a flat stopper, which is reflected on the puller. The guide nozzles on the upper and lower sides of the U-shaped puller outlet are equal in length, the pulled-out binding is symmetrical on the upper and lower sides, and the width of the binding stopper is relatively small. Most of the bindings are single-needle sewing machine bindings. Whether in terms of firmness or aesthetics, it is difficult to meet the increasingly high requirements of customers. Especially when the thickness of the binding strip is large, the thickness of the single-needle binding structure described above increases and lacks transition, which looks very conspicuous, and there are deficiencies in firmness and aesthetics.

[0003] In order to improve the binding quality, some users have proposed using double-needle binding. In order to reduce the thickness, it is required that the two binding stoppers do not coincide. The processing of such a binding structure is very time-consuming, slow, and prone to missing stoppers during manual processing, and the effect is not good, which seriously affects the quality. If this process is not solved, it will cause a bottleneck in the production process. SUMMARY

[0004] The present application aims to solve the problems of insufficient firmness and aesthetics of the existing single-needle binding, low efficiency and great difficulty of double-needle binding, and the inapplicability of the existing binding puller. An integrated double-needle binding guide puller with different diameters is provided. The different diameter structures on both sides of the puller outlet make the binding belt automatically form a double-stop structure when pulled out of the guide puller with different diameters, and double-needle binding can be used respectively, so that the binding structure has a sense of hierarchy, reduces the difficulty of double-needle binding, improves production efficiency, and improves binding quality.

[0005] One technical solution adopted by the present application to solve the technical problem is: an integrated double-needle binding guide puller with different diameters, comprising a bottom plate and a buckle plate, a binding strip channel is formed between the bottom plate and the buckle plate, the binding strip channel conveys the binding strip from front to back, the input end is a straight opening, and the output end is a W-shaped opening. A U-shaped puller outlet is connected to the side of the bottom plate of the middle bending segment of the binding strip channel output end at a 90-degree angle. The upper side and the lower side of the binding strip channel output end and the U-shaped puller outlet are respectively provided with an upper stopper guide nozzle and a lower stopper guide nozzle. The length of the lower stopper guide nozzle is greater than that of the upper stopper guide nozzle.

[0006] Compared with the prior art, the guide nozzles on the upper and lower sides of the U-shaped pulling outlet adopt different sizes, the length of the upper stopper guide nozzle is smaller than that of the lower stopper guide nozzle, the width of the upper stopper formed after the folding of the binding strip through the binding strip channel and the pulling out of the U-shaped pulling outlet is smaller than that of the lower stopper, the upper stopper and the lower stopper can be separately sewn by double needles, the different-size pulling cylinder structure design directly completes the misalignment folding of the upper stopper and the lower stopper when the pulling cylinder pulls out the binding, reduces the thickness of the binding strip, and makes the binding structure have a hierarchical sense, reduces the difficulty of double-needle binding, improves the production efficiency, and improves the binding quality.

[0007] Preferably, the binding strip channel gradually increases in W-shaped bending degree from front to back, the middle part of the binding strip channel is folded to form a ridge line in the front-back direction, the upper stopper guide channel is above the ridge line, and the lower stopper guide channel is below the ridge line.

[0008] Preferably, the ratio of the length of the lower stopper guide nozzle to the length of the upper stopper guide nozzle is 2:1, and the ratio of the unfolding width of the lower stopper guide channel to the unfolding width of the upper stopper guide channel is 2:1.

[0009] The folding widths of the lower stopper guide nozzle and the upper stopper guide nozzle are different, and the required width of the binding strip material is also different, so when the folds of the guide channel are formed, the material width of the binding strip is allocated in an upper-lower distribution ratio through the offset of the ridge line position, so that the upper stopper and the lower stopper will not be misaligned again after being pulled out.

[0010] Preferably, the front end of the bottom plate is a flat plate, and the rear end is folded to have a W-shaped cross section; the front end of the clamping plate is a flat plate, and the front end is bent to have a U-shaped cross section, and the two side edges of the clamping plate are respectively suspended in the upper stopper guide channel and the lower stopper guide channel without contact. The clamping plate cooperates with the bottom plate to form a W-shaped channel to limit and guide the folding and winding of the binding strip.

[0011] Preferably, the two side edges of the bottom plate are inwardly bent to form connecting edges, and the connecting edges are welded and fixed with the clamping plate.

[0012] Preferably, the bottom plate is downwardly bent at the rear end of the upper stopper guide nozzle to be provided with an upper limiting stop edge, and is upwardly bent at the rear end of the lower stopper guide nozzle to be provided with a lower limiting stop edge.

[0013] Preferably, the middle part of the clamping plate is provided with a guide groove in the front-back direction.

[0014] Preferably, the U-shaped pulling outlet is integrally bent and formed on the bottom plate. The pulling plane of the entire binding strip is integrally bent to reduce corner burrs and keep smoothness.

[0015] Preferably, the lower side edge of the bottom plate is further connected with a seat plate, and the seat plate is provided with a mounting hole connected with a sewing machine.

[0016] This invention utilizes a pull tube structure design with varying diameters to directly achieve staggered folding of the upper and lower stops when the pull tube is pulled out for edge binding. This gives the edge binding structure a sense of layering, reduces the difficulty of double-needle edge binding, improves production efficiency, and enhances edge binding quality. Attached Figure Description

[0017] The invention will be further described below with reference to the accompanying drawings.

[0018] Figure 1 This is a schematic diagram of one structure of the present invention.

[0019] Figure 2 This is a schematic diagram of the conveying and folding of the edge banding strip according to the present invention.

[0020] Figure 3 This is a schematic diagram of an edge-sealing structure according to the present invention.

[0021] Figure 4 This is a schematic diagram of a separate structure of base plate and buckle plate according to the present invention.

[0022] Figure 5 This is a schematic diagram of a base plate and buckle plate flattening structure according to the present invention.

[0023] In the diagram: 1. Base plate, 2. Button plate, 3. Input end, 4. U-shaped pull-out outlet, 5. Upper stop guide nozzle, 6. Lower stop guide nozzle, 7. Upper limit stop edge, 8. Lower limit stop edge, 9. Guide groove, 10. Seat plate, 11. Mounting hole, 12. Binding strip, 13. Upper stop, 14. Lower stop, 15. Fabric to be bound, 16. Stitch, 17. Rib, 18. Upper stop guide channel, 19. Lower stop guide channel, 20. Upper button, 21. Lower button. Detailed Implementation

[0024] The present invention will be further described below with reference to specific embodiments and accompanying drawings.

[0025] Example: An integrated double-needle edge-sealed guide tube with varying diameter, such as... Figure 1 , 2 As shown. It includes a base plate 1 and a snap-on plate 2, forming an edging strip channel between the base plate and the snap-on plate. The edging strip channel conveys the edging strip 12 from front to back. The input end 3 is a straight opening, and the output end is a W-shaped opening. A U-shaped pull-out outlet 4 is connected to the base plate side of the middle bend section of the output end of the edging strip channel at a 90-degree angle. An upper stop guide nozzle 5 and a lower stop guide nozzle 6 are respectively provided on the upper and lower sides of the output end of the edging strip channel and the U-shaped pull-out outlet 4. The length of the lower stop guide nozzle 6 is twice the length of the upper stop guide nozzle 5. An upper limit stop 7 is provided at the rear end of the upper stop guide nozzle 5 after bending downwards, and a lower limit stop 8 is provided at the rear end of the lower stop guide nozzle 6 after bending upwards. Figure 4 ,5 As shown, the W-shaped bend of the binding strip channel gradually increases from front to back. The front end of the base plate 1 is flat, and the rear end is pleated into a W-shaped cross section. The front end of the buckle plate is flat, and the front end is bent into a U-shaped cross section. The two sides of the base plate are bent inward to form connecting edges 8, and the connecting edges 8 are welded and fixed to the buckle plate 2.

[0026] The central folds of the base plate form a ridge 17 in the front-to-back direction. Above the ridge 17 is the upper stop guide channel 18, and below the ridge is the lower stop guide channel 19. The unfolded width of the lower stop guide channel 19 is twice the unfolded width of the upper stop guide channel 18. The two sides of the buckle plate 2 are suspended without contact in the upper stop guide channel 18 and the lower stop guide channel 19, respectively. The front ends of the two sides of the buckle plate 2 are the upper buckle 20 and the lower buckle 21, which cooperate with the upper stop guide nozzle 5 and the lower stop guide nozzle 6, respectively. The length of the lower buckle is greater than the length of the upper buckle. A guide groove 9 is provided in the middle of the buckle plate 2 along the front-to-back direction for guiding the insertion of the binding strip.

[0027] The lower side of the base plate 1 is also connected to a seat plate 10, which has mounting holes 11 for connecting to a sewing machine.

[0028] like Figure 4 , 5 As shown, the U-shaped pull-out outlet, upper limit stop, lower limit stop, and connecting edges are all integrally bent from the base plate 1. The dotted lines in the figure indicate backward bending, and the dotted lines indicate forward bending. The dotted lines in the middle of the buckle plate 2 indicate forward bending. Both the base plate 1 and the buckle plate 2 are made of stainless steel.

[0029] The edge-sealing structure formed by this device is as follows: Figure 3 As shown, the width of the upper stop 13 is half the width of the lower stop 14. The binding fabric 15 is sandwiched between the upper and lower stops, and the needles 16 of the double-needle sewing machine fall on the upper and lower stops respectively.

Claims

1. An integrated double-needle beading guide puller with different diameters, comprising a bottom plate and a buckle plate, a beading strip channel is formed between the bottom plate and the buckle plate, the beading strip channel conveys the beading strip from front to back, the input end is a straight opening, and the output end is a W-shaped opening, and the side of the middle bending section of the output end of the beading strip channel is connected with a U-shaped pull-out opening through a 90-degree turning, characterized in that: The upper stop mouth guide nozzle and the lower stop mouth guide nozzle are respectively arranged at the upper side and the lower side of the U-shaped pull-out port corresponding to the edge strip channel output end, and the length of the lower stop mouth guide nozzle is greater than that of the upper stop mouth guide nozzle; The W-shaped bending degree of the edge strip channel gradually increases from front to back, the middle part of the edge strip channel is folded to form a ridge line in the front-back direction, the upper stop mouth guide channel is above the ridge line, and the lower stop mouth guide channel is below the ridge line, and the unfolding width of the lower stop mouth guide channel is greater than that of the upper stop mouth guide channel; The guide nozzles on the upper side and the lower side of the U-shaped pull-out port are different in size, the length of the upper stop mouth guide nozzle is less than that of the lower stop mouth guide nozzle, the width of the upper stop mouth formed after the edge strip is pulled out from the U-shaped pull-out port is less than that of the lower stop mouth after the edge strip is folded through the edge strip channel, and double needles are respectively used for sewing at the upper stop mouth and the lower stop mouth.

2. The one-piece double needle beaded gaiter of claim 1, wherein: The ratio of the length of the lower stop mouth guide nozzle to the length of the upper stop mouth guide nozzle is 2:1, and the ratio of the unfolding width of the lower stop mouth guide channel to the unfolding width of the upper stop mouth guide channel is 2:

1.

3. The one-piece double needle beaded gaiter of claim 1 or 2, wherein: The front end of the bottom plate is a flat plate, and the rear end is folded into a W-shaped cross section; the front end of the buckle plate is a flat plate, and the front end is folded into a U-shaped cross section, and the two side edges of the buckle plate are respectively suspended in the upper stop mouth guide channel and the lower stop mouth guide channel without contact.

4. The one-piece double needle beaded gaiter of claim 3, wherein: The two side edges of the bottom plate are inwardly folded to form connecting edges, and the connecting edges are welded and fixed with the buckle plate.

5. The one-piece double needle French seaming guide of claim 1 or 2, wherein: The bottom plate is downwardly folded at the rear end of the upper stop mouth guide nozzle to be provided with an upper limiting stop edge, and is upwardly folded at the rear end of the lower stop mouth guide nozzle to be provided with a lower limiting stop edge.

6. The one-piece double needle French seaming guide of claim 1 or 2, wherein: The middle part of the buckle plate is provided with a guide groove in the front-back direction.

7. The one-piece double needle French seaming guide of claim 1 or 2, wherein: The U-shaped pull-out port is integrally folded and formed on the bottom plate.

8. The one-piece double needle French seaming guide of claim 1 or 2, wherein: The lower side edge of the bottom plate is further connected with a seat plate, and the seat plate is provided with a mounting hole connected with a sewing machine. The lower side edge of the bottom plate is further connected with a seat plate, and the seat plate is provided with a mounting hole connected with a sewing machine.

Images