Shoe tree center line positioner

Abstract

The utility model relates to the field of shoemaking, and discloses a shoe tree center line positioner which comprises a supporting structure and a plurality of rod-shaped components. A plurality of first through holes arranged in a straight line are formed in the supporting structure, and the rod-shaped part penetrates through the first through holes; when the different rod-shaped components move downwards to preset positions relative to the different first through holes respectively, the lower ends of the rod-shaped components can be arranged into an arc line used for abutting against the upper surface of the shoe tree, and the top view of the arc line is a straight line. According to the utility model, a central line with a straight top view on the surface of the shoe tree can be conveniently and quickly determined, after the cloth laid on the shoe tree is cut off along the central line, the intersecting line of the two pieces of cloth is a straight line, and after the two pieces of cloth with the straight joint are spliced and sewn together, the two pieces of cloth are spliced and sewn together. The top view of the sewing joint of the two pieces of cloth on the shoe upper is also a straight line, so that the shoe is more attractive, and the shoe sewing device is suitable for the shoe production process.

Description

Technical Field

[0001] The utility model relates to the field of shoemaking, and specifically relates to a shoe last center line locator. Background Art

[0002] A shoe last is a mold for shoe forming. In the process of cutting the upper pattern, a piece of fabric is covered on the shoe last to make it closely fit the shoe last, and this piece of fabric is cut along the edge of the shoe last, then a fabric with a shape and size matching the upper surface of the shoe last can be obtained.

[0003] However, when producing shoes of certain styles, the upper is not made of a single piece of fabric, but is stitched together by two pieces of fabric. The method of cutting the upper pattern is usually as follows: First, draw a straight center line on the upper surface of the shoe last along the length direction of the shoe last; Second, cover a piece of fabric on the shoe last, and cut out the first piece of fabric with this center line and the edge of the shoe last on one side of the center line as the contour; Subsequently, cover another piece of fabric on the shoe last, and cut out the second piece of fabric with this center line and the edge of the shoe last on the other side of the center line as the contour; Finally, stitch the straight parts of these two pieces of fabric together, then the upper of the target style can be obtained, and thus the shoes of the target style can be produced.

[0004] Before cutting the upper pattern of the above-mentioned shoes of the target style, a line needs to be drawn on the upper surface of the shoe last and used as the center line of the shoe last. Since the upper surface of the shoe last is usually a curved surface, it is very difficult to determine a center line whose top view is a straight line on the shoe last without the aid of tools and only by visual observation. If the top view of the center line determined by the eyes is a curve, it will cause the interface where the two pieces of fabric cut according to this center line are stitched together to also be a curve, so that the center line of the upper obtained by splicing the two pieces of fabric is also a curve, affecting the aesthetics of the upper. Content of the Utility Model

[0005] To solve the above-mentioned deficiencies in the prior art, the utility model aims to provide a shoe last center line locator, which can determine a center line whose top view is a straight line on the shoe last, solves the problem that the center line of the shoe last is curved and the interface where the two pieces of fabric cut according to it are stitched together is also a curve, and further solves the problem of the resulting unaesthetic upper.

[0006] To achieve the above purpose, the technical solution adopted by the utility model is as follows: A shoe last center line locator includes a support structure and a plurality of rod-shaped components; a plurality of first through holes arranged in a straight line are formed on the support structure, and the rod-shaped components penetrate through the first through holes; when different rod-shaped components move downward relative to different first through holes to a predetermined position respectively, the lower ends of each rod-shaped component can be arranged into an arc for abutting against the upper surface of the shoe last, and the top view of the arc is a straight line.

[0007] As a limitation of the present utility model: the rod-shaped component is a screw rod, the inner wall of the first through hole has threads, and the rod-shaped component is threadedly connected with the first through hole; when the rod-shaped component is rotated, it can move upward or downward relative to the first through hole.

[0008] As a limitation of the present utility model: it further includes a plurality of rotating components, and each rotating component is fixedly arranged at the upper end of a different rod-shaped component; when the rotating component is rotated, the rod-shaped component can move upward or downward relative to the first through hole.

[0009] As a limitation of the present utility model: the shoe last center line locator further includes a plurality of rotating components, and each rotating component is sleeved on a different rod-shaped component; a second through hole for the rod-shaped component to pass through is formed in each rotating component, the position of the second through hole corresponds to the position of the first through hole, and the size of the second through hole is the same as the size of the first through hole; the rod-shaped component is a screw rod, the inner wall of the second through hole has threads, and the rod-shaped component is threadedly connected with the second through hole; when the rotating component is rotated, the rod-shaped component can move upward or downward relative to the second through hole.

[0010] As a limitation of the present utility model: the rotating component is a knob.

[0011] As a limitation of the present utility model: each rod-shaped component is "T"-shaped, and a cross bar is fixedly arranged at the upper end of each rod-shaped component.

[0012] Due to the adoption of the above technical solution, compared with the prior art, the beneficial effects obtained by the present utility model are as follows: by providing a plurality of first through holes arranged in a straight line in the top view, the top view of the curve formed by the lower end of the rod-shaped component passing through them on the shoe last surface can also be a straight line, realizing the convenient and rapid determination of a center line with a straight top view on the shoe last surface. After cutting the fabric laid on the shoe last along this center line, the intersection line of the two pieces of fabric is a straight line; after splicing and sewing together the two pieces of fabric with a straight joint, the top view of the joint of the two pieces of fabric on the shoe upper can also be a straight line, thereby making the shoe more beautiful. Description of the Drawings

[0013] The following further describes the present utility model in detail with reference to the drawings and specific embodiments.

[0014] Figure 1 It is the front view of the structures of Embodiment 1 and Embodiment 2 of the present utility model;

[0015] Figure 2 It is the front view of the structure of Embodiment 3 of the present utility model;

[0016] Figure 3 It is the front view of the structure of Embodiment 4 of the present utility model;

[0017] Figure 4 It is the top view of the structure of Embodiment 4 of the present utility model;

[0018] Figure 5 It is the schematic structural view when using Embodiment 4 of the present utility model.

[0019] In the figure: 1 - support structure, 2 - rod-shaped component, 3 - first through hole, 4 - rotating component, 5 - second through hole. Specific embodiments

[0020] The following is a description of the preferred embodiments of the present utility model with reference to the accompanying drawings. It should be understood that the shoe last center line locator described herein is a preferred embodiment, which is only used to illustrate and explain the present utility model and does not constitute a limitation to the present utility model.

[0021] The orientation terms or positional relationships such as "upper", "lower", "left", "right", etc. described in the present utility model are based on the orientation relationship of the drawings in the specification of the present utility model. It is only for the convenience of describing the present utility model and simplifying the description, and does not indicate or imply that the device or component must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the content protected by the present utility model.

[0022] Embodiment 1

[0023] As Figure 1 shown, a shoe last center line locator includes a support structure 1 and a plurality of rod-shaped components 2. The support structure 1 is a long and narrow thin plate, which can be made of metal or plastic materials. For the material of the support structure 1, this embodiment does not make excessive limitations. A plurality of first through holes 3 arranged in a straight line are formed in the support structure 1, and the rod-shaped components 2 are arranged in the support structure 1 through the first through holes 3. The diameter of the rod-shaped component 2 is slightly smaller than the diameter of the first through hole 3, and the outer wall of the rod-shaped component 2 and the inner wall of the first through hole 3 can both be polished into a rough surface or made of rough surface materials, so as to increase the friction between the rod-shaped component 2 and the first through hole 3, so that when the rod-shaped component 2 is pulled up and down to a predetermined position, the relative position between the rod-shaped component 2 and the first through hole 3 can be kept constant, preventing the rod-shaped component 2 from sliding down due to the action of gravity.

[0024] Further, the length of the support structure 1 is adapted to the length on the shoe last from the shoe mouth to the shoe tip. Since the length of the shoe last is limited, if the number of the first through holes 3 is too small, the number of the rod-shaped components 2 available for positioning will be too small, thereby reducing the number of positioning points on the shoe last. When the positioning points are insufficient, the distance between two positioning points will be relatively large. Since the surface of the shoe last is a curved surface, when manually connecting two adjacent positioning points, the line may be bent to a certain extent in the top view direction due to the too long connection distance. As the number of positioning points increases, the distance between adjacent points decreases. When manually connecting the lines, it is not easy to cause the line connected between two adjacent points to be a curve due to the too long connection distance, thereby reducing the probability that the line is bent in the top view direction when connecting two adjacent points, and making the top view of the line connecting two adjacent points a straight line as much as possible. According to the above principle, after ensuring that the top views of the lines connecting all adjacent two points are straight lines, when observing from the overall view, the top view of the line formed by connecting all the positioning points in sequence is also a straight line. If the number of the first through holes 3 is too large, the number of the rod-shaped components 2 available for positioning will also be large, thus increasing the workload of marking the positioning points and reducing the shoe-making efficiency. Preferably, the numbers of the rod-shaped component 2 and the first through holes 3 are both 5, and the 5 first through holes 3 are arranged at equal intervals on the support structure 1, so that a line with a straight top view can be determined by 5 points on the surface of the shoe last, avoiding the top view of the above-mentioned line being bent due to too few positioning points, resulting in the determined center line being a curve, thereby affecting the aesthetics of the shoe upper.

[0025] Further, when taking the shoe last center line locator, the rod-shaped component 2 may slip out of the first through hole 3. Therefore, a cross bar (not shown in the figure) is fixedly arranged at the upper end of each rod-shaped component 2 to obtain a rod-shaped component 2 with a "T" shape. At the same time, the diameter of the first through hole 3 is smaller than the length of the cross bar. When the rod-shaped component 2 slides downward relative to the support component 1 due to an accidental situation, both ends of the cross bar can abut against the edge of the first through hole 3, preventing the rod-shaped component 2 from sliding out of the support component 1, thereby further improving the operation experience of the operator. The structure added to the upper end of the rod-shaped component 2 can also be other components larger than the diameter of the first through hole 3. This embodiment does not make too many limitations on this, as long as it can play a role in preventing the rod-shaped component 2 from sliding off the support structure 1.

[0026] Embodiment 2

[0027] A shoe last center line locator, continue to refer to Figure 1, on the basis of Embodiment 1, the rod-shaped component 2 is a screw rod, the inner wall of the first through hole 3 has threads, and the rod-shaped component 2 and the first through hole 3 are connected by threads. When the rod-shaped component 2 is rotated by hand, the rod-shaped component 2 can move upward or downward relative to the first through hole 3. Through the cooperation of the threads, the position of the rod-shaped component 2 in the first through hole 3 can be better fixed, making it not easy for the rod-shaped component 2 to slide up and down relative to the first through hole 3, and ensuring that the positions between the rod-shaped component 2 and the first through hole 3 are relatively constant.

[0028] Embodiment 3

[0029] A shoe last center line locator, as Figure 2 shown, on the basis of Embodiment 2, the rod-shaped component 2 is still a screw rod. In order to more conveniently turn the rod-shaped component 2, in the shoe last center line locator, several rotating components 4 are further included. Each rotating component 4 is fixedly arranged at the upper end of a different rod-shaped component 2. At the same time, the number of rotating components 4 matches the number of rod-shaped components 2. When the rotating component 4 is rotated, the rod-shaped component 2 can be driven to rotate. Due to the mutual cooperation of the threads, the rod-shaped component 2 can move upward or downward relative to the first through hole 3.

[0030] Furthermore, for the convenience of the operator to turn, the rotating component 4 is a knob. When it is necessary to adjust the height of the rod-shaped component 2, turning the knob can control the rod-shaped component 2 to reach the preset position, improving the operator's use experience. Regarding the specific structure of the rotating component 4, this embodiment does not limit it too much, as long as it can indirectly and conveniently control the rod-shaped component 2 to make a rotational motion.

[0031] In addition, the width of the support structure 1 should be greater than the diameter of the rod-shaped component 2, that is, the width of the support structure 1 is also greater than the diameter of the first through hole 3, so as to ensure that the rod-shaped component 2 can penetrate through the support structure 1. The diameter of the rotating component 4 should be greater than the diameter of the rod-shaped component 2, so that the upper part of the rod-shaped component 2 can be fixed in the rotating component 4; at the same time, the size of the rotating component 4 can be greater than or less than the width of the support structure 1. This embodiment does not limit it too much, as long as it can be realized that by turning the rotating component 4, the rod-shaped component 2 can be conveniently turned.

[0032] Embodiment 4

[0033] A shoe last center line locator, as Figure 3As shown in the figure, on the basis of Embodiment 1, it further includes a number of rotating components 4. A second through hole 5 for the rod-shaped component 2 to pass through is provided on each rotating component 4. The number of rotating components 4 can be respectively sleeved on the upper ends of different rod-shaped components 2, and the rotating components 4 can be placed on the support structure 1. The position of the second through hole 5 corresponds to the position of the first through hole 3, that is, the second through hole 5 and the first through hole 3 are coaxially arranged; and the size of the second through hole 5 is the same as the size of the first through hole 3, so that the rod-shaped component 2 can pass through the first through hole 3 and the second through hole 5 simultaneously.

[0034] The rod-shaped component 2 is also a screw rod. The inner wall of the second through hole 5 has threads, and the rod-shaped component 2 can be threadedly connected to the second through hole 5. When the rotating component 4 is rotated, due to the mutual cooperation of the threads, the rod-shaped component 2 can move upward or downward relative to the second through hole 5.

[0035] As Figure 4 shown in the figure, the width of the support structure 1 should be greater than the diameters of the first through hole 3 (not shown in the figure) and the second through hole 5, so as to ensure that the rod-shaped component 2 penetrates through the support structure 1 and the rotating component 4 simultaneously. The diameter of the rotating component 4 should be greater than the diameter of the rod-shaped component 2, so that the rod-shaped component 2 can be sleeved in the second through hole 5 in the rotating component 4; at the same time, the size of the rotating component 4 can be greater than or less than the width of the support structure 1. This embodiment does not limit this too much, as long as the rod-shaped component 2 can be conveniently rotated by rotating the rotating component 4.

[0036] As Figure 5 shown in the figure, when different rod-shaped components 2 respectively move downward relative to different first through holes 3 to a predetermined position, that is, when the lower end of the rod-shaped component 2 can just abut against the upper surface of the shoe last, when observed from the side of the shoe last, it can be seen that the lower ends of the respective rod-shaped components 2 can be arranged in an arc for abutting against the upper surface of the shoe last, and the top view of the arc is a straight line. By adjusting the movement of multiple rod-shaped components 2 to different positions, different-shaped shoe lasts can be adapted, and then by manually connecting the lines, a connection line with a top view of a straight line can be determined on the shoe last with a curved surface.

[0037] The method for producing a target style shoe using the shoe last center line locator is as follows:

[0038] First, move the shoe last center line locator to a predetermined position above the shoe last. By pressing down or rotating one of the rod-shaped components 2, its lower end is brought into contact with the upper surface of the shoe last. In a similar way, all 5 rod-shaped components 2 are made to abut against the upper surface of the shoe last. At this time, when observed from the side, it is found that the lower ends of the respective rod-shaped components 2 are arranged in an arc for abutting against the upper surface of the shoe last, and the top view of the arc is a straight line. Subsequently, these 5 points are connected by a pen on the upper surface of the shoe last, and this line is the center line of the shoe last.

[0039] Secondly, cover a piece of fabric on the shoe last, and cut out the first piece of fabric with this center line and the edge of the shoe last on one side of the center line as the contour; subsequently, cover another piece of fabric on the shoe last, and cut out the second piece of fabric with this center line and the edge of the shoe last on the other side of the center line as the contour.

[0040] Finally, sew the straight parts of these two pieces of fabric together to obtain the upper of the target style, thereby producing the shoe of the target style.

Claims

1. A shoe last midline locator, characterized in that: It comprises a supporting structure (1) and a plurality of rod-shaped components (2); A plurality of first through holes (3) arranged in a straight line are provided on the support structure (1), and the rod-shaped component (2) is arranged to pass through the first through holes (3); When different rod-shaped components (2) move downward to predetermined positions relative to different first through holes (3), the lower ends of the rod-shaped components (2) can be arranged into an arc for abutting against the upper surface of the shoe last, and the top view of the arc is a straight line.

2. The shoe last midline locator according to claim 1, characterized in that: The rod-shaped component (2) is a screw rod, the inner wall of the first through hole (3) has threads, and the rod-shaped component (2) and the first through hole (3) are threadedly connected; When the rod-shaped component (2) is rotated, it can move upward or downward relative to the first through hole (3).

3. The shoe last midline locator according to claim 2, characterized in that: It also includes a plurality of rotating components (4), each rotating component (4) being fixedly arranged on the upper end of a different rod-shaped component (2); When the rotating component (4) is rotated, the rod-shaped component (2) can move upward or downward relative to the first through hole (3).

4. The shoe last midline locator according to claim 1, characterized in that: It also comprises a plurality of rotating components (4), each rotating component (4) being sleeved on a different rod-shaped component (2); Each rotating component (4) is provided with a second through hole (5) for the rod-shaped component (2) to pass through, the position of the second through hole (5) corresponds to the position of the first through hole (3), and the size of the second through hole (5) is the same as the size of the first through hole (3); The rod-shaped component (2) is a screw rod, the inner wall of the second through hole (5) has threads, and the rod-shaped component (2) and the second through hole (5) are threadedly connected; When the rotating component (4) is rotated, the rod-shaped component (2) can move upward or downward relative to the second through hole (5).

5. The shoe last midline locator according to claim 3 or 4, characterized in that: The rotating component (4) is a knob.

6. The shoe last midline locator according to any one of claims 1 to 4, characterized in that: Each rod-shaped component (2) is in a "T" shape, and a cross bar is fixedly arranged at the upper end of each rod-shaped component (2).

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