Auxiliary processing part for shoe upper decoration structure

Abstract

The present invention proposes an auxiliary processing part of a shoe upper decoration structure, comprising an upper plywood and a lower plywood spaced apart, an M-shaped covering strip channel formed between the upper plywood and the lower plywood, and two V-shaped decorative strip channels formed on the lower side of the lower plywood; a first sewing groove is provided at a position corresponding to the middle of the covering strip channel on the lower plywood, and a second sewing groove is provided on both sides of the lower plywood, and the two second sewing grooves are respectively located on both sides of the covering strip channel, the first sewing groove and the second sewing groove are both arranged along the front and rear directions of the lower plywood, the rear sides of the first sewing groove and the second sewing groove both pass through the rear side of the lower plywood, and the front end of the first sewing groove is located in front of the front end of the second sewing groove; needle holes are provided on the upper plywood corresponding to the front ends of the first sewing groove and the second sewing groove, respectively, which can guide the movement of the covering strip and the decorative strip, automatically fold the covering strip, and automatically wrap the decorative strip, thereby improving the processing efficiency and molding quality of the decorative structure.

Description

Technical Field

[0001] The invention relates to the technical field of shoemaking, in particular to an auxiliary processing part for a shoe upper decoration structure. Background Art

[0002] A linear decorative structure is provided on the upper of a leather shoe. The decorative structure is provided along the circumference of the upper and on the front side of the upper. The decorative structure is usually a U-shaped structure and is opened toward the rear. Figure 1-3 As shown, the upper 100, the covering strip 200, the decorative strip 300, and the stitching 400.

[0003] There are two decorative strips 300, which are arranged along the upper 100 to form a decoration for the upper 100. The covering strip 200 covers the two decorative strips 300, and the covering strip 200 is connected to the upper 100 by stitching, thus forming a decorative structure along the circumference of the upper.

[0004] And how to process the decorative structure on the upper is a problem.

[0005] The traditional method is to first connect the decorative strip 300 with the covering strip 200 (through glue, usually manually), and then sew the covering strip 200 and the decorative strip 300 together to the upper 100 (using a sewing machine). The above processing method has low processing efficiency and there is a problem of inconsistent molding quality. Summary of the Invention

[0006] In response to the problems pointed out in the background technology, the present invention proposes an auxiliary processing part for a shoe upper decorative structure to improve the processing efficiency and molding quality of the decorative structure.

[0007] The technical solution of the present invention is achieved as follows:

[0008] An auxiliary processing part for a shoe upper decorative structure, comprising an upper plywood and a lower plywood spaced apart from each other, both of which are M-shaped structures, with an M-shaped covering strip channel formed between the upper plywood and the lower plywood, and two V-shaped decorative strip channels formed on the lower side of the lower plywood;

[0009] A first sewing groove is provided on the lower splint at a position corresponding to the middle of the covering strip channel, and a second sewing groove is provided on both sides of the lower splint, and the two second sewing grooves are respectively located on both sides of the covering strip channel, and the first sewing groove and the second sewing groove are both arranged along the front-to-back direction of the lower splint, and the rear sides of the first sewing groove and the second sewing groove both pass through the rear side of the lower splint, and the front end of the first sewing groove is located in front of the front end of the second sewing groove;

[0010] The upper clamping plate is provided with needle holes corresponding to the front ends of the first sewing groove and the second sewing groove respectively.

[0011] The present invention is further configured such that guide bars are respectively provided on both sides of the covering bar channel, the guide bars are arranged along the front-rear direction, the guide bars are fixedly arranged on the upper clamping plate, and the two guide bars form an eight-shaped structure that opens backward.

[0012] The present invention is further configured such that the guide strip is located between the two second sewing grooves.

[0013] The present invention is further configured such that a guide tube coaxial with the needle hole is connected to the upper clamping plate.

[0014] The present invention is further configured such that the front ends of the upper and lower splints are connected to each other, and the rear ends of the upper and lower splints are connected via a spring.

[0015] The present invention is further configured such that the guide tube can be elastically moved in the up and down directions.

[0016] The present invention is further configured such that the guide tube is arranged on the lower side of the upper clamping plate, and an elastic rubber ring is provided between the guide tube and the upper clamping plate to connect the two.

[0017] The present invention is further configured such that the front end of the covering strip channel is tilted upward.

[0018] By adopting the above technical solution, the beneficial effects of the present invention are:

[0019] (1) It can guide the movement of the covering strip and the decorative strip, automatically fold the covering strip, and automatically wrap the decorative strip, thereby improving the processing efficiency and molding quality of the decorative structure.

[0020] (2) The middle of the covering strip is first sewn and fixed to the shoe upper, and then the two sides are sewn and fixed to the shoe upper. This can avoid pulling the covering strip when sewing the two sides, which will affect the quality of the sewing.

[0021] (3) The guide strip can guide the movement of the covering strip and guide the covering strip to the left and right sides, so that the covering strip can be stretched as much as possible in the M-shaped covering strip channel, avoiding wrinkles on the covering strip that affect the molding quality of the decorative structure.

[0022] (4) The auxiliary processing part of the present application is installed on the presser foot of the sewing machine. As the presser foot moves, when the auxiliary processing part is pressed, the rear ends of the upper clamping plate and the lower clamping plate will move closer to each other, thus forming elastic pressure to press the shoe upper and the covering strip, which helps to improve the quality of sewing.

[0023] (5) The guide tube can guide the movement of the sewing needle and can also elastically press the covering strip and the shoe upper, which helps to improve the quality of sewing. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0025] Figure 1 It is a structural diagram of existing leather shoes;

[0026] Figure 2 A schematic diagram of the unfolded decorative structure on the upper;

[0027] Figure 3 A schematic diagram of the sewing and fixing connection between the decorative structure and the upper;

[0028] Figure 4 Schematic diagram of the exploded upper and lower splints of the present invention;

[0029] Figure 5 It is a structural schematic diagram of the present invention;

[0030] Figure 6 A top view of the present invention;

[0031] Figure 7 It is a side view of the present invention. DETAILED DESCRIPTION

[0032] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0033] Reference as follows Figure 1-7 The present invention will be described:

[0034] The cam is secured to the bottom of the shoe by a spring, and the cam is secured to the bottom of the shoe by a spring. The rear end of the upper clamping plate 1 is provided with a fixing portion 6 fixedly connected to the presser foot of the sewing machine. The fixing portion 6 is arranged in the middle of the upper clamping plate 1 and is fixedly connected to the presser foot of the sewing machine via screws. When in use, the auxiliary processing part is installed in front of the presser foot of the sewing machine and moves with the presser foot of the sewing machine. The front end of the covering strip channel 3 is tilted upward, that is, the front ends of the upper clamping plate 1 and the lower clamping plate 2 are tilted upward, so that the covering strip 200 and the decorative strip 300 can be fed in from the upper side. The user at the front controls the unfolded shoe upper to enter the lower side of the auxiliary processing part and the presser foot.

[0035] In the above technical solution, the M-shaped covering strip channel 3 automatically folds the covering strip 200 into an M shape, and the V-shaped decorative strip channel 4 guides the movement of the decorative strip 300 and automatically forms the covering strip 200 to wrap the decorative strip 300, which has high efficiency and good molding quality.

[0036] In the above technical solution, the setting of the spring 5 allows the rear ends of the upper and lower splints 1 and 2 to be compressed and deformed in the up and down directions. When the auxiliary processing part as a whole presses the shoe upper with the movement of the presser foot of the sewing machine, the rear ends of the upper and lower splints 1 and 2 will be compressed and deformed, and the spring will be compressed, forming elastic pressure on the shoe upper and the covering strip, thereby preventing the shoe upper and the covering strip from moving in position during sewing.

[0037] A first sewing groove 7 is provided on the lower splint 2 at a position corresponding to the middle of the covering strip channel 3, and a second sewing groove 8 is provided on both sides of the lower splint 2. The two second sewing grooves 8 are respectively located on the left and right sides of the covering strip channel 3. The first sewing groove 7 and the second sewing groove 8 are respectively arranged along the front and back directions of the lower splint 2. The rear sides of the first sewing groove 7 and the second sewing groove 8 both pass through the rear side of the lower splint 2. The front end of the first sewing groove 7 is located in front of the front end of the second sewing groove 8. The arrangement of the first sewing groove 7 and the second sewing groove 8 enables the covering strip 200 and the shoe upper to contact each other and can be sewn and fixed.

[0038] The upper splint 1 is provided with a needle hole 9 corresponding to the front end of the first sewing groove 7 and the second sewing groove 8 respectively. The sewing needle of the sewing machine enters through the needle hole 9 to sew and fix the covering strip 200 and the upper. The three sewing needles perform sewing operations at the same time, and work one after the other. The sewing needle corresponding to the first sewing groove 7 first sews and fixes the middle position of the decorative structure, and then the sewing needle corresponding to the second sewing groove 8 sews and fixes the two side positions of the decorative structure, so that the decorative structure is processed on the upper.

[0039] 40 stitches.

[0040] Guide bars 10 are provided on either side of the cladding bar channel 3. These smooth metal guide bars 10 are arranged in the front-to-back direction and are fixed to the upper clamping plate 1. These long, strip-shaped guide bars 10 form a rearward-splaying figure-eight (Figure-eight) configuration. These guide bars 10 can be considered protruding from the inner sidewall of the upper clamping plate 1. These protrusions exert a strong clamping force on the cladding bar, guiding it along its extension direction. This allows the cladding bar to stretch to the left and right, preventing wrinkles.

[0041] The guide strip 10 is located between the two second sewing grooves 8, and the rear end of the guide strip 10 is arranged close to the second sewing groove 8, which is equivalent to guiding the covering strip to the second sewing groove 8 and then to the sewing position to facilitate sewing.

[0042] The needle hole 9 is connected to a guide tube 11 coaxial with it, and the guide tube 11 can move elastically in the up and down directions. The guide tube 11 is arranged on the lower side of the upper splint 1, and an elastic rubber ring 12 connecting the two is provided between the guide tube 11 and the upper splint 1. The guide tube 11 is made of metal material, has a smooth surface, and has low contact friction. The outer diameter and inner diameter of the guide tube 11 and the elastic rubber ring 12 are the same. The inner diameter of the guide tube 11 is equal to the diameter of the needle hole. The downward protruding length of the guide tube 11 and the elastic rubber ring 12 is close to the downward protruding length of the guide strip 10. The elastic rubber ring 12 can provide elastic force to press the covering strip and the shoe upper through the guide tube 11. It is not completely tightened here, but a horizontal circular surface area is formed by the guide tube 11, so that the suture needle is in contact with the covering strip in a flat state, avoiding contact with the covering strip in an inclined state, thereby pulling the covering strip.

[0043] 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. An auxiliary processing part for a shoe upper decorative structure, characterized in that: It includes an upper plywood and a lower plywood spaced apart from each other, both of which are M-shaped structures, an M-shaped covering strip channel is formed between the upper plywood and the lower plywood, and two V-shaped decorative strip channels are formed on the lower side of the lower plywood; A first sewing groove is provided on the lower splint at a position corresponding to the middle of the covering strip channel, and a second sewing groove is provided on both sides of the lower splint, and the two second sewing grooves are respectively located on both sides of the covering strip channel, and the first sewing groove and the second sewing groove are both arranged along the front-to-back direction of the lower splint, and the rear sides of the first sewing groove and the second sewing groove both pass through the rear side of the lower splint, and the front end of the first sewing groove is located in front of the front end of the second sewing groove; The upper clamping plate is provided with needle holes corresponding to the front ends of the first sewing groove and the second sewing groove respectively.

2. The auxiliary processing piece for shoe upper decoration structure according to claim 1, characterized in that: Guide strips are respectively provided on both sides of the covering strip channel. The guide strips are arranged along the front-back direction and are fixed on the upper clamping plate. The two guide strips form an eight-shaped structure that opens backwards.

3. The auxiliary processing piece for shoe upper decoration structure according to claim 2, characterized in that: The guide strip is located between the two second sewing grooves.

4. The auxiliary processing piece for shoe upper decoration structure according to claim 1, characterized in that: The upper clamping plate is connected with a guide tube coaxial with the needle hole.

5. The auxiliary processing piece for shoe upper decoration structure according to claim 4, characterized in that: The front ends of the upper clamping plate and the lower clamping plate are connected to each other, and the rear ends of the upper clamping plate and the lower clamping plate are connected through a spring.

6. The auxiliary processing piece for shoe upper decoration structure according to claim 5, characterized in that: The guide tube can move elastically in the up and down directions.

7. The auxiliary processing piece for shoe upper decoration structure according to claim 6, characterized in that: The guide tube is arranged on the lower side of the upper clamping plate, and an elastic rubber ring connecting the guide tube and the upper clamping plate is provided between the guide tube and the upper clamping plate.

8. The auxiliary processing piece for shoe upper decoration structure according to claim 1, characterized in that: The front end of the covering strip channel is tilted upward.

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