Plug-in type universal sewing device for heel part false threads

Abstract

The utility model provides a universal plug-in type heel part false thread sewing device which comprises a lower-layer bottom plate, a middle-layer plate is fixed on the lower-layer bottom plate, two protruding parts are symmetrically arranged on the side of the middle-layer plate, positioning angles are formed between the side edges of the middle-layer plate and the protruding parts, the universal plug-in type heel part false thread sewing device further comprises a cover plate, and the two ends of the cover plate are fixedly connected with the two protruding parts respectively. A gap between the cover plate and the bottom plate is used for clamping materials; the template with a symmetrical structure is designed to sew the heel part without being influenced by a left foot and a right foot, the heel part is positioned and fixed in the sewing process, the heel part can be prevented from moving in the sewing process, a positioning angle is designed to position the heel part, for the same type of shoes, the template is not influenced by the shoe size and the left foot and the right foot, generalization is achieved, the number of manufactured templates is reduced, and the production efficiency is improved. And the template replacement time of operators is saved, the working efficiency is improved, and the template is simple in structure and convenient to use.

Description

Technical Field

[0001] This utility model belongs to the field of shoe template technology, specifically relating to a universal sewing device for insert-type backstrap false thread. Background Technology

[0002] In shoemaking, the faux stitching on the heel countertop is usually hand-stitched. If a pattern sewing machine is used, a sewing template matching the heel countertop size needs to be made. Since a shoe has multiple different shoe sizes, the heel countertop size varies for each size, and the outer contours of the heel countertop for the left and right shoes are also different, with only the angle formed by the collar edge and the side zipper edge being the same. Therefore, each shoe size requires the making of corresponding left and right shoe templates. Producing just one shoe requires making multiple templates, making the process cumbersome and severely impacting production schedules.

[0003] Therefore, the technical problem to be solved by this utility model is: how to design a mold that can sew different shoe sizes and the back of the left and right shoes of the same style. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a universal sewing device with insertable back dummy thread.

[0005] The specific plan is as follows:

[0006] A universal sewing device with insertable back dummy thread includes a lower base plate, on which a middle plate is fixed. Two protrusions are symmetrically arranged on the side of the middle plate, and a positioning angle is formed between the side of the middle plate and the protrusions. The device also includes a cover plate, on which the two protrusions are fixedly connected at both ends. The gap between the cover plate and the base plate is used to clamp materials.

[0007] The lower base plate is provided with a working area for sewing materials, and the working area is a strip-shaped hole; the middle plate is provided with two protrusions that form a trapezoidal empty area that is narrow at the top and wide at the bottom. The trapezoidal empty area overlaps with the working area. The side of the middle plate is a first positioning edge, which is the upper boundary of the trapezoidal empty area. The inner contours of the two protrusions are the second positioning edges, which are the boundaries of the two sides of the trapezoidal empty area. A positioning angle is formed between the first positioning edge and the second positioning edge.

[0008] The thickness of the middle layer plate is less than or equal to the thickness of the material.

[0009] The lower base plate is an insulating board with a thickness of 0.5-1.5mm, and the cover plate is an insulating board with a thickness of 2mm-3mm.

[0010] The lower base plate is provided with a first fixing hole, and the middle plate is provided with a second fixing hole. The first fixing hole and the second fixing hole overlap and are fixed to the sewing machine base by screws.

[0011] It also includes a fixed frame plate, which is provided with a third fixing hole. The first fixing hole, the second fixing hole and the third fixing hole overlap and are fixed to the sewing machine base by screws.

[0012] The beneficial effects of this utility model are as follows:

[0013] This utility model features a symmetrical template for sewing the back of the shoe, unaffected by left or right foot position. The template positions and fixes the back of the shoe during sewing, preventing it from shifting. The design includes a positioning angle for the back of the shoe, ensuring universality for the same shoe model regardless of shoe size or left / right foot position. This reduces the number of templates required, saves time for operators changing templates, and improves work efficiency. The template structure is simple and easy to use. Attached Figure Description

[0014] Figure 1 This is an exploded view of this utility model.

[0015] Figure 2 This is a composite diagram of the present invention.

[0016] Figure 3 This is a diagram illustrating the working process.

[0017] Lower base plate 1, first fixing hole 11, working area 12

[0018] Middle layer plate 2, second fixing hole 21, protrusion 22, first positioning edge 221, second positioning edge 222

[0019] Cover plate 3, fixed frame plate 4, rear support 5. Detailed Implementation

[0020] The technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the implementation of this utility model, not all of it. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0021] like Figure 1-3 As shown, this utility model provides a universal sewing device with insertable back dummy thread, including a lower base plate 1, a middle plate 2 fixed on the lower base plate 1, two protrusions 22 symmetrically arranged on the side of the middle plate 2, and a positioning angle formed between the side of the middle plate 2 and the protrusions 22, and also includes a cover plate 3, with the two ends of the cover plate 3 respectively fixedly connected to the two protrusions 22, and the gap between the cover plate 3 and the base plate 1 is used to clamp materials.

[0022] This utility model features a symmetrical template for sewing the back of the shoe, unaffected by left or right foot position. The template positions and fixes the back of the shoe during sewing, preventing it from shifting. The design includes a positioning angle for the back of the shoe, ensuring universality for the same shoe model regardless of shoe size or left / right foot position. This reduces the number of templates required, saves time for operators changing templates, and improves work efficiency. The template structure is simple and easy to use.

[0023] like Figure 1-3 As shown, the lower base plate 1 is provided with a working area 12 for sewing materials, and the working area 12 is a strip-shaped hole; the two protrusions 23 provided on the middle plate 2 form a trapezoidal empty area that is narrow at the top and wide at the bottom, and the trapezoidal empty area overlaps with the working area 12. The side of the middle plate 2 is the first positioning edge 221, which is the upper boundary of the trapezoidal empty area. The inner contours of the two protrusions 23 are the second positioning edges 222, which are the boundaries on both sides of the trapezoidal empty area. A positioning angle is formed between the first positioning edge 221 and the second positioning edge 222.

[0024] In this invention, the lower bottom plate 1, the middle plate 2, and the cover plate 3 form a slot for inserting the back panel 5, and the overall structure is symmetrical. The slot refers to the space formed between the lower bottom plate 1, the first positioning edge 221, and the cover plate 3. The back panel 5 includes two straight edges: a side zipper edge and a neckline edge. During sewing, the back panel 5 is inserted into the slot. The first positioning edge 221 positions the neckline edge of the back panel 5, and a second positioning edge 222 positions the side zipper edge. This two-way positioning, combined with the fixation of the cover plate 3, effectively prevents the back panel 5 from shifting during sewing. By adjusting the vertical position of the first positioning edge 221 of the middle plate 2, the sewing area of ​​the back panel 5 can be adjusted. Adjusting the first positioning edge 221 upwards moves the sewing area of ​​the back panel 5 downwards, while adjusting it downwards moves the sewing area upwards. This allows the template to be used for sewing the back panels 5 of other shoe styles.

[0025] It should be noted that the lengths of the side zipper edge and the neckline edge are different for different shoe sizes and for the back of the left and right shoes, but the angle formed between the side zipper edge and the neckline edge is the same. The positioning angle designed in this utility model is the same as the angle formed by the two straight edges of the back, so that one template can be applied to different shoe sizes of the same shoe and the back of the left and right shoes. With the center of the pattern machine as a reference mirror, the positions of the left and right shoes are taken, and a stacking design is adopted, that is, both the left and right shoes are controlled within the sewing range, so as to achieve the purpose of being universal for all sizes of left and right shoes, and the template is detachable.

[0026] The thickness of the middle layer plate 2 is less than or equal to the thickness of the material. It should be noted that "less than" here means slightly less than. To ensure that the material can be inserted into the slot, the thickness of the internal space of the slot is actually the thickness of the middle layer plate 2. When the thickness of the middle layer plate 2 is slightly less than the thickness of the material, inserting the material into the slot can achieve fixation.

[0027] The lower base plate 1 is an insulating board with a thickness of 0.5-1.5mm, and the cover plate 3 is an insulating board with a thickness of 2-3mm.

[0028] like Figure 1 and Figure 2 As shown, the lower base plate 1 is provided with a first fixing hole 11, and the middle plate 2 is provided with a second fixing hole 21. The first fixing hole 11 and the second fixing hole 21 overlap and are fixed to the sewing machine table by screws.

[0029] like Figure 3 As shown, it also includes a fixed frame plate 4, which is provided with a third fixing hole. The first fixing hole 11, the second fixing hole 21 and the third fixing hole overlap and are fixed to the sewing machine table by screws.

[0030] The upper part of the lower base plate 1 overlaps with the upper part of the empty area of ​​the middle plate 2. Both the base plate 1 and the middle plate 2 are square, with two recesses on the upper edge. The recesses are screwed to the pattern sewing machine. The cover plate 3 can be glued to the middle plate 2. The lower boundary line of the cover plate 3 is preferably above the working area 12, so as not to affect the sewing work of the back panel 5 in the working area 12. The upper layer is left empty to facilitate observation of whether the back panel 5 is placed in place.

[0031] The specific working process of this utility model is as follows:

[0032] The back panel 5 of this invention includes two straight edges, namely the side zipper edge and the neckline edge. During sewing, the pattern to be sewn on the back panel 5 is selected on the operation screen of the pattern sewing machine. After selecting the pattern, the back panel 5 is inserted into the slot formed between the lower bottom plate 1, the middle plate 2, and the cover plate 3 until the neckline edge of the back panel 5 touches the upper boundary line of the trapezoidal empty area, i.e., the first positioning edge 221. At this time, the back panel 5 is moved along the first positioning edge 221 until the side zipper edge of the back panel 5 touches the inner contour of the protrusion 22, i.e., the second positioning edge 222. The back panel 5 is positioned in two directions using the first positioning edge 221 and the second positioning edge 222, which effectively prevents the back panel 5 from shifting during the sewing process. That is, the positioning edge on the middle plate 2 is used to position the back panel 5, and the cover plate 3 is used to press down the back panel 5, thereby achieving the fixation and positioning of the back panel 5. After the positioning and fixing are completed, the back panel 5 is sewn.

[0033] When sewing the back panel 5 of the right leg is required, move the back panel 5 to the left along the first positioning edge 221 until the side zipper edge of the back panel 5 touches the second positioning edge on the left side and then stop moving. Figure 3 As shown in the red back panel 5, pressing the pedal of the pattern sewing machine will sew the right back panel 5. Figure 3 The gap between the side zipper edge of the rear panel 5 and the second positioning edge 222 shown is for easy observation; in actual operation, the two are in contact.

[0034] When sewing the back panel 5 of the left leg, move the back panel 5 to the right along the first positioning edge 221 until the side zipper edge of the back panel 5 touches the second positioning edge on the right side, then stop moving. Figure 3 As shown in blue back panel 5, pressing the pedal of the pattern sewing machine will sew the right back panel 5. Figure 3 The curve on the back panel 5 is the sewn pattern.

[0035] Since the areas where the stitching patterns of the heel counter 5 corresponding to different shoe sizes are located all fall within the working area 11 on the base plate 1, and the heel counter 5 of the left and right feet are mirror images, the template design of this utility model is a symmetrical structure. Therefore, the heel counter 5 of the same shoe can be stitched through this template, and it is not affected by shoe size or left and right feet, thus achieving universality. The template structure is simple, easy to use, and improves work efficiency.

[0036] The technical means disclosed in this utility model are not limited to those disclosed in the above embodiments, but also include technical solutions composed of any combination of the above technical features. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications are also considered within the scope of protection of this utility model.

Claims

1. A universal sewing device for inserting a backstay artificial thread, characterized by: The utility model provides a sewing machine material clamping device, including lower layer bottom plate (1), the middle layer plate (2) is fixed on the lower layer bottom plate (1), two protruding parts (22) are symmetrically arranged on the side of middle layer plate (2), and the positioning angle is formed between the side of middle layer plate (2) and protruding part (22), further including cover plate (3), both ends of cover plate (3) are fixedly connected with two protruding parts (22) respectively, and the gap between cover plate (3) and bottom plate (1) is used for clamping material.

2. The universal sewing device for the insertion of the backstay according to claim 1, characterized in that: The lower layer bottom plate (1) is provided with a working area (12) for sewing material, and the working area (12) is a strip-shaped hole; The two protruding parts (22) provided on the middle layer plate (2) form a trapezoidal empty area with narrow upper part and wide lower part, the trapezoidal empty area overlaps with the working area (12), the side of the middle layer plate (2) is a first positioning edge (221), the first positioning edge (221) is the upper boundary of the trapezoidal empty area, the inner contour of the two protruding parts (22) is a second positioning edge (222) respectively, the second positioning edge (222) is the boundary on both sides of the trapezoidal empty area, and the first positioning edge (221) and the second positioning edge (222) form a positioning angle.

3. The universal sewing device for the insertion of the backstay according to claim 1, characterized in that: The thickness of the middle layer plate (2) is less than or equal to the thickness of the material.

4. The universal sewing device for the insertion of the backstay according to claim 1, characterized in that: The thickness of the lower layer bottom plate (1) is 0.5mm-1.5mm of an insulating plate, and the cover plate (3) is an insulating plate with a thickness of 2mm-3mm.

5. The universal sewing device for the insertion of the backstay according to claim 2, characterized in that: The lower layer bottom plate (1) is provided with a first fixing hole (11), and the middle layer plate (2) is provided with a second fixing hole (21), the first fixing hole (11) and the second fixing hole (21) overlap and are fixed on the machine table of the sewing machine through screws.

6. The universal sewing device for the insertion of the backstay according to claim 5, characterized in that: Further comprising a fixed frame plate (4), the fixed frame plate (4) is provided with a third fixing hole, and the first fixing hole (11), the second fixing hole (21) and the third fixing hole overlap and are fixed on the machine table of the sewing machine through screws.

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