Shoe tree structure and manufacturing method thereof

Abstract

The invention discloses a shoe tree structure and a manufacturing method thereof, the shoe tree structure mainly comprises a high-cylinder shoe tree seat and a front shoe tree body which can be separated or combined relative to the high-cylinder shoe tree seat through pushing, the high-cylinder shoe tree seat is provided with a high-cylinder ankle part, and an acting curved surface is arranged on the high-cylinder shoe tree seat. The front last body is provided with a sliding curved surface capable of sliding and displacing relative to the acting curved surface, a transverse cutting space is arranged above the two curved surfaces and used for containing and locking a buffer pad, assembling grooves are formed between the high-cylinder last seat and the front last body respectively, and components which are connected with each other are correspondingly assembled in the assembling grooves; therefore, the shoe tree structure can be applied to the manufacturing process of high shoes, and the effect of smooth delasting can be achieved.

Description

Technical Field

[0001] The invention relates to the technical field of processing and manufacturing of shoe products, and in particular to a shoe last structure for manufacturing high-top shoes and a manufacturing method thereof. Background Art

[0002] When manufacturing the current sock-type sports shoes, strapless high-top shoes and other shoes, since this type of shoe last is different from the shoe last of general basic shoes, the difference is that there is a heightened shoe shaft or sock extending from the ankle to the calf, so this type of shoe last needs to develop a special shoe last structure for manufacturing.

[0003] When manufacturing the shoe last of a traditional basic shoe model, the shoe last is mainly divided longitudinally into a front last body and a rear last body, and then the front last body and the rear last body are movably assembled so that the rear last body can be relatively separated or combined, and the front last body and the rear last body can be manually moved toward each other to reduce the horizontal length of the shoe last, which is conducive to the removal of the shoe body on the shoe last. For example, the shoe last mechanism disclosed in the utility model patent with the announcement number TW178011U in Taiwan, China and the invention name "Improvement of the ejection shoe last assembly mechanism" can be removed manually; however, in addition to being unable to be used in an automated system, this design cannot adapt to the changes of different shoe models. For example, when manufacturing different shoe types (high-top shoes), because the shoe last of high-top shoes lengthens the length of the ankle, it is impossible to smoothly remove the shoe last through the relative displacement of the front last body and the rear last body.

[0004] At present, the technology in this field still remains at the manual operation of last removal, which is the direction that the inventor of this case and the relevant manufacturers engaged in this industry are eager to study and improve. Therefore, in view of this, the inventor, based on many years of rich design development and actual manufacturing experience in the relevant industry, has made research and improvements to provide a shoe last structure and a manufacturing method thereof, which can be used in the automatic shoe last structure for manufacturing high-top shoes, in order to achieve better practical value. Summary of the invention

[0005] The purpose of the present invention is to provide a shoe last structure and a manufacturing method thereof, which can be applied to an automated shoe last structure for manufacturing high-top shoes.

[0006] The main purpose and effect of the shoe last structure and the manufacturing method thereof of the present invention are achieved by the following specific technical means:

[0007] On the one hand, the present invention provides a shoe last structure, which includes a front last body, having a last tip portion, a sliding curved surface is provided at the rear end of the last tip portion, a first set of grooves is concavely provided inwardly from the end surface of the sliding curved surface, a first pivot is provided in the first set of grooves, and a stop surface is formed at the top of the sliding curved surface; a high-tube last seat, having a last heel portion, a high-tube ankle portion extending upward from the last heel portion, an action curved surface that can slide relatively is provided at the front end of the last heel portion and corresponding to the sliding curved surface, The end surface of the action curved surface is provided with a second set of grooves inwardly concave corresponding to the first set of grooves, a second pivot and a limit shaft are provided in the second set of grooves, the top of the action curved surface is provided with a concave cross-section space, a buffer pad is locked in the cross-section space, and the stop surface contacts and abuts against the buffer pad; a pivot member, whose two ends correspond to the pivot groups on the first pivot and the second pivot respectively; a hook member, one end of which corresponds to the limit shaft and the other end of which is hooked on the first pivot. In this way, the shoe last structure can be used in the manufacture of high-top shoes to achieve the effect of smooth last removal.

[0008] In a preferred embodiment of the shoe last structure described in the present invention, a clamping seat for automated equipment to clamp is installed on the upper end surface of the high-tube ankle portion of the high-tube last seat, so that it can achieve perfect last removal through the design of the present invention during the automated manufacturing method.

[0009] In a preferred embodiment of the shoe last structure of the present invention, the buffer pad and the high-top shoe last are made of the same material or different materials.

[0010] On the other hand, the present invention also provides a shoe last manufacturing method, which is used to manufacture the shoe last structure as described above, and the steps are as follows:

[0011] Step S1: drilling holes: taking a high-top shoe last, the high-top shoe last having a toe portion, a heel portion and a high-top ankle portion, and drilling three through holes between the toe portion and the heel portion;

[0012] Step S2: cutting the high-top shoe last: cutting the high-top shoe last from the bottom between the last tip and the last heel along an upward arc path to the high-top ankle, and then cutting from the high-top ankle along a horizontal path to the intersection with the arc path, thereby cutting the high-top shoe last into a high-top last base and a front last body, wherein two of the perforations are located on the high-top last base, and the other perforation is located on the front last body;

[0013] Step S3: Groove processing: groove processing is performed on the end surfaces of the high-tube last and the front last body cut along the arc path, respectively, to form a first set of grooves on the front last body, one of the perforations is located in the first set of grooves, and a second set of grooves is formed on the high-tube last, and the other two perforations are located in the second set of grooves;

[0014] Step S4: assembling the cushion pad: the transverse path is cut on the high-tube last to form a transverse space, a cushion pad is correspondingly embedded in the transverse space and locked, and the transverse path is cut on the front last to form a stop surface;

[0015] Step S5: Assembling the connecting parts: the through-holes in the first group of grooves are embedded in a first pivot, the first pivot is assembled at one end of a pivot member, one of the through-holes in the second group of grooves is embedded in a second pivot, and the second pivot is assembled at the other end of the pivot member, another through-hole in the second group of grooves is embedded in a limit shaft, and a hooking part is formed between the limit shaft and the first pivot.

[0016] In a preferred embodiment of the shoe last manufacturing method of the present invention, after step S5, a clamping seat for clamping by automated equipment is installed on the upper end surface of the high-tube ankle portion of the high-tube last.

[0017] Compared with the prior art, the shoe last structure and the manufacturing method thereof described in the present application have the following characteristics and advantages:

[0018] 1. The shoe last structure and manufacturing method of the present invention enable the high-top shoe last to be cut into a front last body and a high-top last seat through the design of an arc path and a lateral path, so that the high-top shoe last can also be removed from the last.

[0019] 2. The shoe last structure and manufacturing method of the present invention, through the design of the buffer pad, can ensure that the shoe last can accurately maintain no deformation during the repeated operations of removing and resetting the shoe last, and has the margin effect and advantage of buffering and no deformation during repeated use.

[0020] 3. The shoe last structure and manufacturing method of the present invention can be used in automated manufacturing through the design of the clamping seat, thereby achieving the advantages of improving the application field and effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 : A schematic diagram of the three-dimensional appearance of the present invention;

[0022] Figure 2 : A schematic cross-sectional view of a shoe last of the present invention;

[0023] Figure 3 : A block diagram of the manufacturing method of the present invention;

[0024] Figure 4 : Schematic diagram of the drilling steps in the present invention;

[0025] Figure 5 : Schematic diagram of the cutting step in the present invention;

[0026] Fig. 6A: Schematic diagram of the steps of processing the upper groove of the front last in the present invention;

[0027] Figure 6B : Schematic diagram of the steps of processing the groove on the back last of the present invention;

[0028] Figure 7 : Schematic diagram of the steps of assembling the cushion in the present invention;

[0029] Figure 8 : Schematic diagram of the steps of assembling the connecting parts in the present invention;

[0030] Fig. 9 : A cross-sectional schematic diagram of the shoe last of the present invention in use;

[0031] Fig.10 : Schematic diagram of the appearance of the shoe last mounting clamp of the present invention.

[0032] Description of Figure Numbers:

[0033] A. High-top shoe last; 1. Front last body; 11. Last tip; 12. Sliding surface; 13. First set of grooves; 14. First pivot; 15. Stop surface; 2. High-top last seat; 21. Last heel; 22. High-top ankle; 23. Action surface; 24. Second set of grooves; 25. Second pivot; 26. Limit axis; 27. Cross-cutting space; 3. Buffer pad; 4. Pivot member; 5. Hooking member; 6. Clamp seat; R. Arc path; X. Transverse path; h. Perforation. DETAILED DESCRIPTION

[0034] In order to make the technical content, purpose of the invention and the effects achieved by the present invention more complete and clear, please refer to the accompanying drawings and reference numerals for detailed description as follows:

[0035] First, see Figure 1 and Figure 2 As shown, the three-dimensional appearance and cross-sectional schematic diagram of the shoe last structure of the present invention include:

[0036] A front last body 1, having a tip portion 11, a sliding curved surface 12 is provided at the rear end of the tip portion 11, a first set of grooves 13 is concavely provided inwardly from the end surface of the sliding curved surface 12, a first pivot 14 is provided in the first set of grooves 13, and a stop surface 15 is formed at the top end of the sliding curved surface 12;

[0037] A high-tube last seat 2, having a last heel portion 21, a high-tube ankle portion 22 extending upward from the last heel portion 21, an action curved surface 23 capable of relatively sliding displacement is provided at the front end of the last heel portion 21 and corresponding to the sliding curved surface 12, a second group of grooves 24 is concavely provided inwardly from the end surface of the action curved surface 23 corresponding to the first group of grooves 13, a second pivot 25 and a limit shaft 26 are provided in the second group of grooves 24, a concave cross-section space 27 is provided at the top end of the action curved surface 23, a buffer pad 3 is locked in the cross-section space 27, and the stop surface 15 contacts and abuts against the buffer pad 3;

[0038] A pivot member 4, two ends of which are respectively pivotally mounted on the first pivot 14 and the second pivot 25;

[0039] A hooking member 5 has one end correspondingly hooked on the limiting shaft 26 , and the other end hooked on the first pivot 14 .

[0040] The following embodiments specifically illustrate that the shoe last structure of the present invention is manufactured by the following steps to further demonstrate the scope of practical application of the present invention, but are not intended to limit the scope of the present invention in any form; when actually manufacturing the shoe last, please refer to Figures 3 to 8 As shown, the steps are as follows:

[0041] Step S1: drilling: take a high-top shoe last A, the high-top shoe last A having a last tip portion 11, a last heel portion 21 and a high-top ankle portion 22, and drill three through holes h (such as the first through hole) between the last tip portion 11 and the last heel portion 21. Figure 4 shown);

[0042] Step S2: cutting the high-top shoe last: cutting the high-top shoe last A from the bottom between the last tip 11 and the last heel 21 along an upward arc path R to the high-top ankle 22, and then cutting from the high-top ankle 22 along a transverse path X to the intersection with the arc path R, thereby dividing the high-top shoe last A into a high-top last seat 2 and a front last body 1, and making two of the through holes h located on the high-top last seat 2, and the other through hole h located on the front last body 1 (such as Figure 5 shown);

[0043] Step S3: Groove processing: Groove processing is performed on the end surfaces of the high-tube last 2 and the front last 1 cut along the arc path R, respectively, to form a first set of grooves 13 on the front last 1, and let one through hole h be located in the first set of grooves 13 (such as Fig. 6A As shown), a second set of grooves 24 are formed on the high-tube last 2, and the other two perforations h are located in the second set of grooves 24 (as shown Figure 6B shown);

[0044] Step S4: Assembling the cushion pad: The transverse path X is cut on the high-tube last 2 to form a transverse space 27, a cushion pad 3 is correspondingly embedded in the transverse space 27 and locked, and the transverse path X is cut on the front last 1 to form a stop surface 15 (such as Figure 7 shown);

[0045] Step S5: Assembling the connecting parts: a first pivot 14 is embedded in the through hole h in the first set of grooves 13, and the first pivot 14 is assembled at one end of a pivot member 4, one of the through holes h in the second set of grooves 24 is embedded in a second pivot 25, and the second pivot 25 is assembled at the other end of the pivot member 4, another through hole h in the second set of grooves 24 is embedded in a limit shaft 26, and then a hooking member 5 (such as a hooking member 5) is hooked between the limit shaft 26 and the first pivot 14. Figure 8 so that the front last body 1 can be connected to the high tube last seat 2 by the arc path R relative to the movable displacement (such as Fig. 9 shown).

[0046] When used in assembly, the shoe last structure of the present invention is mainly used in the manufacture of high-top shoe lasts. After obtaining the high-top shoe last A, three through holes h are drilled between the last tip 11 and the last heel 21 by a drilling device, and then the high-top shoe last A is cut along an upward arc path R from the bottom arch position between the last tip 11 and the last heel 21 to a position close to the high-top ankle 22, and this cutting position makes the A sliding surface 12 is formed at the rear end of the last tip portion 11, so that the front end of the last heel portion 21 forms an action surface 23 that can be relatively displaced with the sliding surface 12; then, a horizontal transverse path X is cut from the high-tube ankle portion 22 and intersects with the arc path R. After the cutting step of the high-tube shoe last A, the high-tube shoe last A is divided into a high-tube last seat 2 and a front last body 1, and a cross-cutting space 27 is formed on the high-tube last seat 2.

[0047] Next, the action curved surface 23 of the high-tube last 2 and the sliding curved surface 12 of the front last body 1 are grooved respectively. In this embodiment, milling is adopted to form a first group of grooves 13 on the front last body 1, and the first group of grooves 13 has a through hole h, and a second group of grooves 24 is formed on the high-tube last 2, and the second group of grooves 24 has two through holes h; then, a locking buffer pad 3 is assembled in the above-mentioned cross-cutting space 27, and the buffer pad 3 and the high-tube shoe last A can be made of the same material or different materials; then a first pivot 14 is embedded in the through hole h in the first group of grooves 13, and a first pivot 14 and a limit shaft 26 are respectively embedded in the two through holes h in the second group of grooves 24, and a pivot member 4 is installed between the first pivot 14 and the second pivot 25, and a hooking member 5 is hooked between the limit shaft 26 and the first pivot 14.

[0048] During the actual last removal operation, the front last body 1 can be pushed downward through the connection between the pivot member 4 and the hook member 5, so that the sliding surface 12 of the front last body 1 moves relative to the action surface 23 of the high-tube last seat 2, and at the same time is restrained and limited by the pivot member 4 and the hook member 5 and will not be misplaced; when the shoe last is folded, the front last body 1 is pushed back in the reverse operation, and when the stop surface 15 of the front last body 1 touches the buffer pad 3, it has returned to its original position.

[0049] See also Fig.10 As shown, the shoe last of the present invention can be used in automated manufacturing, and a clamping seat 6 for automated equipment to clamp is installed on the upper end surface of the high-tube ankle portion 22 of the high-tube last seat 2, so that during the automated manufacturing process, the shoe last can be perfectly removed through the design of the present invention.

[0050] It can be seen from the above description of the use and implementation of the present invention that compared with the prior art means, the present invention mainly has the following advantages:

[0051] 1. The shoe last structure and manufacturing method of the present invention, through the design of the arc path R and the lateral path X, enables the high-top shoe last A to be cut into the front last body 1 and the high-top last seat 2, so that the high-top shoe last A can also realize the last removal operation.

[0052] 2. The shoe last structure and manufacturing method of the present invention, through the design of the buffer pad 3, can ensure that the shoe last can accurately maintain no deformation during the repeated operations of removing and resetting the shoe last, and has the margin effect and advantage of buffering and no deformation during repeated use.

[0053] 3. The shoe last structure and the manufacturing method thereof of the present invention can be used in automated manufacturing through the design of the clamping seat 6, thereby achieving the advantages of improving the application field and effect.

Claims

1. A shoe last structure refers to a high-top shoe last, characterized in that: include: A front last body, having a last tip, a sliding curved surface is provided at the rear end of the last tip, a first set of grooves is concavely provided inwardly from the end surface of the sliding curved surface, a first pivot is provided in the first set of grooves, and a stop surface is formed at the top end of the sliding curved surface; A high-tube shoe last seat, comprising a heel portion, a high-tube ankle portion extending upward from the heel portion, an action curved surface capable of relatively sliding displacement is provided at the front end of the heel portion and corresponding to the sliding curved surface, a second group of grooves is concavely provided inwardly at the end surface of the action curved surface corresponding to the first group of grooves, a second pivot and a limit shaft are provided in the second group of grooves, a concave cross-section space is provided at the top end of the action curved surface, a buffer pad is locked in the cross-section space, and the stop surface contacts and abuts against the buffer pad; A pivot member, two ends of which are respectively pivotally mounted on the first pivot axis and the second pivot axis; A hooking member, one end of which is correspondingly hooked on the limiting shaft, and the other end of which is hooked on the first pivot.

2. The shoe last structure according to claim 1, characterized in that: A clamping seat for clamping by automated equipment is installed on the upper end surface of the high-tube ankle portion of the high-tube last.

3. The shoe last structure according to claim 1 or 2, characterized in that: The buffer pad and the high-top shoe last are made of the same material or different materials.

4. A method for manufacturing a shoe last, characterized in that: The steps for manufacturing the shoe last structure described in claim 1 are as follows: Step S1: drilling holes: taking a high-top shoe last, the high-top shoe last having a toe portion, a heel portion and a high-top ankle portion, and drilling three through holes between the toe portion and the heel portion; Step S2: cutting the high-top shoe last: cutting the high-top shoe last from the bottom between the last tip and the last heel along an upward arc path to the high-top ankle, and then cutting from the high-top ankle along a horizontal path to the intersection with the arc path, thereby cutting the high-top shoe last into a high-top last base and a front last body, wherein two of the perforations are located on the high-top last base, and the other perforation is located on the front last body; Step S3: Groove processing: groove processing is performed on the end surfaces of the high-tube last and the front last body cut along the arc path, respectively, to form a first set of grooves on the front last body, one of the perforations is located in the first set of grooves, and a second set of grooves is formed on the high-tube last, and the other two perforations are located in the second set of grooves; Step S4: assembling the cushion pad: the transverse path is cut on the high-tube last to form a transverse space, a cushion pad is correspondingly embedded in the transverse space and locked, and the transverse path is cut on the front last to form a stop surface; Step S5: Assembling the connecting parts: a first pivot is embedded in the through hole in the first group of grooves, the first pivot is assembled at one end of a pivot member, a second pivot is embedded in one of the through holes in the second group of grooves, and the second pivot is assembled at the other end of the pivot member, a limiting shaft is embedded in another through hole in the second group of grooves, and a hooking part is formed between the limiting shaft and the first pivot.

5. The shoe last manufacturing method according to claim 4, characterized in that: After step S5, a clamping seat for clamping by automated equipment is installed on the upper end surface of the high-tube ankle portion of the high-tube last.

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