A stitch sewing template and a shoe upper sewing tool

Abstract

This utility model relates to a stitching template and a shoe upper sewing fixture. The stitching template includes a base plate, an upper template, and an auxiliary plate. The base plate and upper template are provided with stitch holes. Each stitch hole has at least one first stitch hole distributed along a first direction and a plurality of second stitch holes distributed along a second direction. The first stitch holes intersect at least one pair of second stitch holes, forming a free end separate from the upper template in a corresponding area of ​​the upper template. At least a portion of the free end is provided with a first fixing member. The auxiliary plate is detachably disposed on the upper end of the upper template and is provided with a second fixing member to fix or separate the free end with the first fixing member. During the process of closing the upper template to the base plate, because the free end is fixed by the auxiliary plate and overcomes the downward sag caused by gravity, the closing process remains straight, making it less likely for the workpiece already positioned on the base plate to shift, thereby improving the consistency of product stitching.

Description

Technical Field

[0001] This utility model relates to the field of textile sewing technology, specifically to a stitch sewing template and a shoe upper sewing fixture. Background Technology

[0002] Textile fabrics such as shoes, clothing, and bedding usually have some stitches on the fabric layer. These stitches can be multiple layers of sewing stitches, quilting stitches that fix the fabric and inner filling (such as cotton, down, synthetic fiber cotton, etc.) together, or decorative stitches.

[0003] These stitches in textiles can be produced by hand stitching or by using a stitch template. Patent CN210368206U provides a stitch template for shoe uppers, featuring four non-intersecting stitch holes. This type of stitch is simple, and the template design only requires creating corresponding holes at the appropriate locations. For complex stitches, especially those with multiple intersections or connections, hand stitching remains the primary method in actual production.

[0004] Therefore, it is of positive significance to provide a template suitable for sewing stitches with multiple intersections or connections.

[0005] Hole Hole Hole Utility Model Content

[0006] The purpose of this invention is to provide a template stitch suitable for sewing stitches with multiple intersections or connections, aiming to achieve the technical objective of machine sewing complex stitches.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] A stitching template includes a base plate and an upper template. The base plate and the upper template are provided with stitch holes. The stitch holes are provided with at least one first stitch hole distributed along a first direction and a plurality of second stitch holes distributed along a second direction. The first stitch holes intersect at least one pair of second stitch holes to form a free end separated from the upper template in a corresponding area of ​​the upper template. At least a portion of the free end is provided with a first fixing member. The template also includes an auxiliary plate, which is detachably disposed on the upper end of the upper template. The auxiliary plate is provided with a second fixing member to fix or separate the free end provided with the first fixing member.

[0009] Furthermore, the blank area on the upper template where no free end is formed is provided with several third fasteners, and the auxiliary plate is provided with a fourth fastener, which fixes or separates the third fasteners.

[0010] Furthermore, in the upper template and the auxiliary plate, at least one of the fasteners is a point fastener or a block fastener.

[0011] Furthermore, each fastener is a magnetic fastener.

[0012] Furthermore, one edge of the upper template is folded and connected to one edge of the base plate; the other edge of the upper template is folded and connected to one edge of the auxiliary plate, and the auxiliary plate, after being folded open, serves as a pusher plate for moving the stitch sewing template.

[0013] Furthermore, the hinge is formed by adhesive tape to achieve the folding connection.

[0014] Furthermore, the base plate is provided with a positioning strip corresponding to the edge of the workpiece to be sewn. The outer contour of the positioning strip is larger than the outer contour of the workpiece to be sewn. The positioning strip is a color block strip with a color difference from the edge of the workpiece to be sewn.

[0015] Furthermore, the base plate has friction strips at least partially provided on the side of the stitch holes facing the workpiece to be sewn, or the base plate and the upper template have friction strips at least partially provided on the side of the workpiece to be sewn. Furthermore, the friction strips are roughened by patching, printing, or grinding.

[0016] To achieve the above objectives, the present invention also adopts the following technical solution:

[0017] A shoe upper sewing fixture includes a stitch sewing template for sewing intersecting transverse and longitudinal stitches on the shoe upper, wherein the stitch sewing template is as described above.

[0018] By adopting the above technical solution, this utility model has the following advantages compared with the prior art:

[0019] 1. This utility model features intersecting stitch holes on the upper template, facilitating the sewing of complex stitches. An auxiliary plate is provided at the free end of the stitch hole to fix or separate it. Thus, during the process of closing the upper mold to the base plate, the free end, fixed by the auxiliary plate, overcomes the downward pressure caused by gravity, maintaining a relatively straight shape throughout the mold-closing process. This prevents displacement of the workpiece already positioned on the base plate, improving the consistency of product stitching. Furthermore, for larger free ends, the auxiliary plate keeps them contained within the upper template, eliminating the need for assistance during mold closing and improving work efficiency. Additionally, the auxiliary plate fixes the heavier, smaller-sized free end during mold opening and closing, reducing alternating stress at the root and reducing the risk of fatigue and breakage.

[0020] 2. This utility model uses a folding mechanism to separate and open the upper template from the base plate and the auxiliary plate from the upper template, which facilitates operation.

[0021] 3. In this utility model, the fixing component is preferably a magnetic component, which can be self-positioned and fixed during the mold closing process and is easy to detach during the mold opening process, thus facilitating operation.

[0022] 4. This utility model uses color blocks that differ in color from the workpiece to be sewn as positioning strips, which makes it easy to align the workpiece on the base plate.

[0023] 5. By setting friction strips, this utility model further prevents the workpiece to be sewn from moving, thereby improving the consistency of product sewing.

[0024] 6. The template provided by this utility model has less limitation on the sewing stroke range of the sewing machine, and is especially suitable for use with a template machine. Compared with the small sewing range of the pattern machine and the defect of having to sew multiple times on a shoe upper, the template of this utility model can be used in conjunction with the template machine to sew two or more shoe uppers at one time. Attached Figure Description

[0025] Figure 1 This is an example of a shoe upper stitch structure;

[0026] Figure 2 To adapt to Figure 1 Example of a sewing template;

[0027] Figure 3 This is an unfolded view of the stitch sewing template of this utility model;

[0028] Figure 4 This is a schematic diagram of the opening / closing process of the upper and lower templates of this utility model;

[0029] Figure 5 This is a schematic diagram of the mold closing state of the upper and lower templates of this utility model;

[0030] Figure 6 This is a schematic diagram showing the open state of the auxiliary plate of this utility model;

[0031] Figure 7 This is a schematic diagram of one connection method between the first fixing member and the second fixing member;

[0032] Figure 8 This is a schematic diagram of another connection method between the first and second fasteners.

[0033] Explanation of reference numerals in the attached figures:

[0034] 100. Base plate; 110. Positioning strip;

[0035] 200. Upper template; 210. Stitch hole; 211. First stitch hole; 212. Second stitch hole; 220. Free end; 230. First fastener; 240. Third fastener;

[0036] 300. Auxiliary plate; 310. Second fastener; 320. Fourth fastener;

[0037] 400. Adhesive tape; 410. Crease;

[0038] 500, Friction Strip;

[0039] 600, upper; 610, first stitch; 620, second stitch. Detailed Implementation

[0040] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.

[0041] Additionally, it should be noted that the terms "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" are all based on the orientation or positional relationship shown in the accompanying drawings. They are merely for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element of this utility model must have a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0042] When an element is referred to as being "fixed to," "set on," or "contained on" another element, it can be directly on or indirectly on that other element. When an element is referred to as being "connected to," it can be directly connected to or indirectly connected to that other element.

[0043] Unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0044] Example

[0045] Taking the stitching on the shoe upper as an example, such as Figure 1 As shown, it includes several first stitches generally distributed longitudinally and several second stitches generally distributed transversely. The left ends of the longitudinal stitches on the left interweave with the left ends of the transverse stitches to form several filling spaces, while the transverse stitches on the right remain open for sewing after filling in the subsequent process. To complete the sewing of the filling spaces, this utility model is designed as follows: Figure 2The sewing template shown guides the knitting needle to complete the stitching by setting stitch holes corresponding to the stitches on the base plate and the upper template.

[0046] However, this will result in a free end that separates from the upper template at the intersection of the horizontal and vertical stitch holes on the left side. This free end means that its end is separated from the template and is only connected to the upper template by its root. During the transfer of the upper template to the base plate, the free end of this structure may sag and wobble due to gravity, resulting in an overall curved shape. This leads to at least one of the following drawbacks: 1. When the upper template is closed onto the base plate, the free end extends from a curved shape to a straight shape. This process can easily cause the parts already positioned on the base plate to shift, thus reducing the consistency of the product stitching; 2. Larger free ends may exist, with greater wobble, which may directly affect the upper template covering the base plate. Therefore, during the downward closing of the upper template, the free end needs to be manually supported upwards to ensure smooth closing, thus reducing work efficiency; 3. The upper template is constantly switching between opening and closing states. The root of the free end repeatedly wobbles during this process, and the alternating stress acting on the root of the free end makes it prone to fatigue and fracture, especially for free ends that are heavier and have smaller root dimensions.

[0047] Therefore, this utility model discloses a stitching template that integrates the advantages of interlaced stitch sewing while overcoming its drawbacks. Please refer to [reference needed]. Figure 3 As shown, it includes a base plate 100, an upper template 200, and an auxiliary plate 300.

[0048] The base plate 100 and the upper template 200 are provided with stitch holes 210 to guide the knitting needles to complete the stitching. In this utility model, taking the upper template 200 as an example, its stitch holes 210 include at least one first stitch hole 211 distributed along a first direction and a plurality of second stitch holes 212 distributed along a second direction. The first stitch holes 211 intersect at least one pair of second stitch holes 212 to form a free end 220 separated from the upper template 200 in the corresponding area of ​​the upper template 200.

[0049] It should be understood that the first direction and the second direction described in this utility model are only for distinguishing different directions. The first direction and the second direction intersect, but they are not limited to such directions. Figure 3The first direction shown is longitudinal and the second direction is transverse, or the first direction is transverse and the second direction is longitudinal, as long as the stitches in the first direction and the stitches in the second direction can form an "intersection". In other words, the free end 220 may exist in the transverse direction, in the longitudinal direction, or at other angles. The first stitch hole 211 is provided in the first direction and a number of second stitch holes 212 are distributed in the second direction. In this way, when sewing certain stitches, such as quilting, the quilting threads can intersect to form a "pocket-shaped" filling space. This filling space corresponds to the aforementioned free end 220 on the upper template 200.

[0050] At least a portion of the free end 220 is provided with a first fixing member 230; the auxiliary plate 300 is detachably disposed on the upper end of the upper template 200, and the auxiliary plate 300 is provided with a second fixing member 310 to fix or separate the free end 220 provided with the first fixing member 230.

[0051] It should be understood that, ideally, all free ends 220 could be fitted with first fixing members 230 so that, under the action of the second fixing member 310 of the auxiliary plate 300, each free end 220 would be as flush as possible with the upper template 200 during the mold closing process. However, this does not mean that all free ends 220 must be fitted with first fixing members 230 to be fixed to the auxiliary plate 300. For example, if the width of the end of the free end 220 is small, it is not suitable to set the first fixing member 230. Such free ends 220 are often lightweight, have limited drooping, and have limited action surface on the workpiece to be sewn, and usually will not cause displacement of the workpiece to be sewn. In this case, the first fixing member 230 may not be required. As another example, free ends 220 that are short in length and thick at the base have limited drooping and usually will not cause operational inconvenience or displacement of the workpiece to be sewn. In this case, the first fixing member 230 may also not be required.

[0052] It should be understood that, such as Figure 3 As shown, the first fixing member 230 is positioned at the end of the free end 220, which can minimize the drooping degree of the free end 220. However, this does not mean that the first fixing member 230 must be positioned at the end of the free end 220. When the width of the end of the free end 220 is small and not suitable for setting the first fixing member 230, the position of the first fixing member 230 can be moved towards the root to reduce the drooping degree of the free end 220 and achieve the technical objective of this utility model.

[0053] The working principle of this utility model is as follows: First, the auxiliary plate 300 is closed above the upper template 200. At this time, the second fixing member 310 on the auxiliary plate 300 fixes the first fixing member 230 on the free end 220, so that the free end 220 is in a state of being roughly flush with the upper template 200, so that it will not sag or sag excessively due to gravity. The workpiece to be sewn is positioned in the sewing area of ​​the base plate 100. The upper template is closed above the base plate 100. The auxiliary plate 300 and the upper template 200 are separated to avoid the auxiliary plate 300 blocking the stitch holes 210 on the upper template 200. Sewing is performed. After sewing is completed, the process of closing the auxiliary plate 300 on the upper template 200 is returned to start a new round of work.

[0054] In a more preferred embodiment, a plurality of third fasteners 240 are provided in the blank area on the upper template 200 where the free end 220 is not formed, and a fourth fastener 320 is provided on the auxiliary plate 300. The fourth fastener 320 fixes or separates the third fasteners 240. In this way, the fixing effect between the upper template 200 and the auxiliary plate 300 can be further improved by the adsorption between the third fasteners 240 and the fourth fasteners 320.

[0055] This utility model does not specifically limit the shape of each fixing component (first fixing component 230, second fixing component 310, third fixing component 230 and fourth fixing component 320). Each fixing component can be a point fixing component, a block fixing component, or a surface fixing component (that is, the entire contact surface of the upper template and / or the entire auxiliary plate is a fixing component, such as a magnetic metal plate when magnetically attracted). However, in order to facilitate the opening of the auxiliary plate 300, at least one component in the upper template 200 and the auxiliary plate 300 shall have a fixing component that is either a point fixing component or a block fixing component.

[0056] This invention does not specifically limit the first fixing member 230 and the second fixing member 310. However, in a preferred embodiment, the first fixing member 230 and the second fixing member 310 are magnetic components, that is, the first fixing member 230 and the second fixing member 310 are magnets that attract each other, or one of the first fixing member 230 and the second fixing member 310 contains a magnetic component, and the other contains a magnetically attractable metal (such as iron). Using magnetic components allows for self-positioning and fixation. Compared with Velcro and male / female fasteners, they are less prone to wear and tear, and they are relatively easy to detach during mold separation, facilitating operation.

[0057] This utility model does not specifically limit the shape of the magnetic attractor or the way it is disposed at the free end 220. The magnetic attractor can be sheet-like, connected by attachment or magnetic coating, or connected by embedding. Figure 7As shown, in a preferred embodiment, the upper template 200 and the auxiliary plate 300 are formed with embedded holes for the magnetic components. Thus, the magnetic components can be glued to the embedded holes, or the two ends of the embedded holes can be sealed with tape 400 to enclose the magnetic components in the embedded holes.

[0058] like Figure 8 As shown, in another preferred embodiment, the first fixing member 230 and the second fixing member 310 are fixed by through holes, that is, one of the first fixing member 230 or the second fixing member 310 is a hole, and the other is a protrusion corresponding to the hole. Fixing and separation are completed by the engagement of the protrusion and the hole.

[0059] In a preferred embodiment, the separation and opening between the upper template 200 and the base plate 100, and between the auxiliary plate 300 and the upper template 200, are achieved by folding. Specifically, one edge of the upper template 200 is folded and connected to one edge of the base plate 100, and similarly, the other edge of the upper template 200 is folded and connected to one edge of the auxiliary plate 300. This eliminates the need for a guide structure. After the upper template 200 folds towards the base plate 100, it automatically aligns with the base plate 100 to complete mold closing. After the auxiliary plate 300 folds towards the upper template 200, its second fixing member 310 automatically aligns with the first fixing member 230.

[0060] At the same time, the auxiliary plate 300, after being folded open, serves as a pusher plate to move the stitch sewing template. That is, as... Figure 6 As shown, after the workpiece to be sewn is placed in and the upper template 200 and the base plate 100 are closed, the sewing template after the mold is closed can be pushed forward by the opened auxiliary plate 300 to facilitate the sewing of the stitches; after the operation is completed, the sewing template after the operation is completed can be pulled back by the opened auxiliary plate 300 to facilitate the mold opening and removal of the sewn workpiece.

[0061] This invention does not specifically limit the folding structure, which can be a hinge mechanism formed by a hinge seat and a hinge shaft, etc. However, in a preferred embodiment, the folding mechanism can adopt, for example... Figures 4-6 The adhesive tape 400 shown is used to glue the edges of the template 200 and the base plate 100 together, and the edges of the template 200 and the auxiliary plate 300 together to form a simple hinge. It can be folded along the crease 410, which is simple, easy to do and reduces costs.

[0062] In a preferred embodiment, the base plate 100 is provided with a positioning strip 110 corresponding to the edge of the workpiece to be sewn. The outer contour of the positioning strip 110 is larger than the outer contour of the workpiece to be sewn, and the positioning strip 110 is a color block strip with a color difference from the edge of the workpiece to be sewn. In this way, by observing the visual difference (observation) between the color block strip and the edge of the workpiece to be sewn, it is easy to identify whether the workpiece to be sewn has been centered on the base plate 100.

[0063] Since the base plate 100 and the upper template 200 are mostly made of resin plates and have relatively smooth surfaces, in order to reduce the movement of the parts to be sewn during the mold closing process, this invention provides friction strips 500 on at least a portion of the side of the base plate 100 with the stitch holes 210 facing the parts to be sewn. In a more preferred embodiment, friction strips 500 are provided on at least a portion of the base plate 100 and the upper template 200 with the sides facing the parts to be sewn. The friction strips 500 can be formed by applying patches (such as sandpaper), printing (such as attaching friction particles to resin by printing), or roughening by grinding (such as dotting or knurling).

[0064] In another aspect, this utility model discloses a shoe upper sewing fixture, which includes the aforementioned stitch sewing template, through which the first stitch and the second stitch on the shoe upper are sewn.

[0065] The above description is merely a preferred embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A stitching template, comprising a base plate and an upper template, wherein the base plate and the upper template are provided with stitch holes, characterized in that: The stitch hole is provided with at least one first stitch hole distributed along a first direction and a plurality of second stitch holes distributed along a second direction. The first stitch holes intersect at least one pair of second stitch holes to form a free end separated from the upper template in a corresponding area of ​​the upper template. At least a portion of the free end is provided with a first fixing member. It also includes an auxiliary plate, which is detachably disposed at the upper end of the upper template. The auxiliary plate is provided with a second fixing member to fix or separate the first fixing member.

2. The stitch sewing template of claim 1, wherein: The blank area on the upper template where no free end is formed is also provided with several third fasteners, and the auxiliary plate is provided with a fourth fastener, which fixes or separates the third fasteners.

3. The stitching template as described in claim 1 or 2, characterized in that: In the upper template and the auxiliary plate, at least one component's fixing element is a point fixing element or a block fixing element.

4. The stitching template as described in claim 1 or 2, characterized in that: The first and second fixing members, and / or the third or fourth fixing members, are fixed by perforation or magnetic attraction.

5. The stitching template as described in claim 1, characterized in that: One edge of the upper template is folded and connected to one edge of the base plate; the other edge of the upper template is folded and connected to one edge of the auxiliary plate. After the auxiliary plate is folded open, it is used as a pusher to move the stitch sewing template.

6. The stitching template as described in claim 5, characterized in that: The folding connection is achieved by forming a hinge using adhesive tape.

7. The stitching template as described in claim 1, characterized in that: The base plate is provided with positioning strips corresponding to the edge of the workpiece to be sewn. The outer contour of the positioning strips is larger than the outer contour of the workpiece to be sewn. The positioning strips are color blocks that have a color difference from the edge of the workpiece to be sewn.

8. The stitching template as described in claim 1, characterized in that: The bottom plate has friction strips at least partially on the side of the stitch hole facing the workpiece to be sewn, or the bottom plate and the upper template have friction strips at least partially on the side of the workpiece to be sewn.

9. The stitching template as described in claim 8, characterized in that: The friction strip is roughened by patching, printing, or grinding.

10. A shoe upper sewing fixture, comprising a stitch sewing template for sewing intersecting first and second stitches on the shoe upper, characterized in that: The stitching template is the stitching template as described in any one of claims 1-9.

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