TWI759103B - Shoe shell mold structure and methods of use thereof - Google Patents

Abstract

A shoe shell mold structure and methods of use thereof having a male die base, a shoe-last rotating block and a shoe-last mold core are provided. The shoe-last rotating block is pivoted on the male die base. The shoe-last mold core is connected to the male die base and is arranged on a back side of the shoe-last rotating block. Thereby, the shoe-last rotating block pivots relative to the male die base, and the shoe shell can follow the shoe-last rotating block to rotate and separate from the shoe-last mold core, so that the shoe shell mold structure has the advantages of convenient demolding, shortening a production time and improving a yield of the finished product.

Description

Shoe shell mold structure and its operation method

The present invention relates to a mold structure for making shoe shells and an operation method of the mold structure, and in particular, to a shoe shell mold structure and an operation method thereof.

At present, there are many shoes and boots with intense sports nature that need to have a certain degree of protection and stability, such as ski boots, inline roller shoes, skate shoes, hockey, etc. The aforementioned shoes and boots are integrally formed by plastic injection, so as to obtain reliable quality. In order to achieve high strength, safety, comfort and stability.

In order to enable sports users to obtain better activity effects, the shape of the aforementioned shoes and boots must be closer to the shape of the human foot, but at the same time, due to the irregular shape (barb) of the foot and ankle, the shape is formed. The rear shoe shell is not easy to be taken out from the mold due to the interference phenomenon; alternatively, take a step back and use a softer plastic material or take the time to force the shoe shell out before the shoe shell is formed and hardened.

However, whether the shoe shell is demolded by material or process tricks, the shoe shell may be scratched and deformed due to the aforementioned forced demoulding and removal by techniques, and the production time of each shoe will be prolonged. Moreover, the demoulding requirements for different soft and hard materials are also different. The soft finished product that has not been formed and hardened can accept a large amount of deformation, so the mold only needs to make way for the large undercut area (avoidance). Position) design can be done, while the hard product must first plan the relevant demolding structure in the initial design of the mold, so that the future product can be smoothly taken out without the aforementioned interference phenomenon. Therefore, how to design a mold that can deal with different soft and hard materials or shoes and boots with irregular shapes (barbs) can be released smoothly from the mold, which is a common research and development focus of manufacturers.

In view of this, the inventor of the present invention has devoted himself to the research and application of the theory in view of the above-mentioned prior art, and tried his best to solve the above-mentioned problems, which has become the goal of the present inventor's development.

The invention provides a shoe shell mold structure and an operation method thereof. The last rotating block is used to pivot relative to the male mold base, and the shoe shell can follow the rotation of the last rotating block to be separated from the shoe last mold core, so that the shoe shell mold can be rotated. The structure has the advantages of convenient demoulding, shortening production time and improving product yield.

In an embodiment of the present invention, the present invention provides a shoe shell mold structure, including: a male mold base defining an axial direction and a first radial direction; a last rotating block pivotally connected to the male mold base seat; and a shoe last mold core, connected to the male mold base and disposed on the rear side of the last rotation block, the shoe last mold core includes a sliding block, the sliding block is worn on the male mold base and It can slide along the axial direction, one side of the sliding block has a guiding inclined surface arranged along the axial direction and gradually increasing in thickness in the direction away from the last rotating block, and the shoe last mold core further comprises a shoe last heel A slider, one side of the shoe last and slider is connected to the male mold base and can slide along the first radial direction, and the other side is in contact with the guiding inclined surface and can move relatively with the guiding inclined surface .

In the embodiment of the present invention, the present invention provides a method for operating a shoe shell mold structure, the steps of which include: a) providing a male mold base, a last rotating block and a shoe last mold kernel, the last rotating block; is pivotally connected to the male mold base, and the shoe last mold core is connected to the male mold base and is arranged on the rear side of the last rotating block; b) provides a female mold, the female mold is provided with a mold cavity, and The last rotating block and the shoe last mold core are accommodated inside the mold cavity; c) perform material injection and cooling operations on the mold cavity, and then carry out the demoulding operation on the mother mold, so that the last head The rotating block and the surface of the shoe last mold core are combined with a shoe shell; d) the male mold base defines an axial direction and a first radial direction, and the shoe last mold core includes a sliding block and a shoe last heel slider , the sliding block is sandwiched between the last rotating block and the shoe last heel slider, and the sliding block can move along the Axial sliding and has a guiding inclined surface, one side of the shoe last heel slider slides along the first radial direction and the other side abuts the guiding inclined surface; e) the sliding block is along the axis Moving upward, the shoe last heel slider will be guided by the guiding inclined surface to move along the first radial direction toward the last rotating block, so that the shoe shell is separated from the shoe last heel slider; and h ) Pivoting the last rotating block relative to the male mold base, can drive the shoe shell to follow the rotation of the last rotating block and break away from the shoe last mold core, and then rotate the shoe shell from the last rotating block up and down.

Based on the above, the male mold base defines an axial direction, a first radial direction and a second radial direction. The shoe last mold core includes a sliding block, a shoe last heel slider and two shoe last side sliders, and the sliding block is clamped on the last. Between the head rotating block and the shoe last heel slider, the two shoe last side sliders are arranged on both sides of the shoe last heel slider. When the slider moves up along the axis, the shoe last heel slider will move along the first diameter. Move towards the direction close to the last rotating block, so that the shoe shell and the shoe last heel slider are separated, and the second shoe last side slider will move inward along the second radial direction, so that the shoe shell and the second shoe last side slider are separated. After that, the last rotating block is pivoted relative to the male mold base, and the shoe shell can follow the rotation of the last rotating block and quickly separate from the shoe last mold core, so that the shoe shell mold structure has the advantages of convenient demoulding, shortening production time and improving the finished product. The advantage of yield.

10: Shoe shell mold structure

1: Male mold base

11: The first track

12: The third slider

2: Last rotating block

21: Inward recessed groove

22: Stop lock block

3: Shoe last mold kernel

31: Slider

311: Guide Bevel

312: Second track

32:Shoe Last Heel Slider

321: Outside inclined surface

322: First Slider

323: Butt Bevel

324: Second Slider

325: bump

33:Shoe last side slider

331: Third Orbit

332: Groove

333: Inside sloped surface

334: Card Block

4: Drive

100: master mold

200: shoe shell

s: spacing

w: thickness

y: Axial

x: first radial

z: second radial

a~h: steps

Fig. 1 is a flow chart of the steps of the operation method of the shoe shell mold structure of the present invention.

FIG. 2 is a three-dimensional combined view of the shoe shell mold structure of the present invention.

FIG. 3 is an exploded perspective view of the structure of the shoe shell mold of the present invention.

FIG. 4 is a schematic diagram of the present invention, where the last rotating block and the shoe last mold core are accommodated inside the mold cavity.

FIG. 5 is a schematic view of the present invention, where the surface of the last rotating block and the shoe last mold core is combined with a shoe shell.

FIG. 6 is a schematic cross-sectional view taken along the line 6-6 in FIG. 5 .

Fig. 7 is a schematic diagram showing the separation of the shoe shell, the shoe last heel slider, and the second shoe last side slider according to the present invention.

FIG. 8 is a schematic cross-sectional view taken along the line 8-8 in FIG. 7 .

Fig. 9 is a schematic diagram of the pivoting of the last rotating block relative to the male mold base of the present invention

Fig. 10 is a schematic diagram of the present invention having removed the shoe shell from the last rotating block.

The detailed description and technical content of the present invention will be described below with the accompanying drawings, but the accompanying drawings are only used for illustration purposes and are not intended to limit the present invention.

Please refer to FIGS. 1 to 10 , the present invention provides a shoe shell mold structure and an operation method thereof. The shoe shell mold structure 10 mainly includes a male mold base 1 , a last rotating block 2 and a shoe last mold Jen 3.

As shown in FIG. 1 , the steps of the operation method of the shoe shell mold structure 10 of the present invention are described in detail as follows. First, as shown in step a of FIG. 1 and FIG. 2 to FIG. 3, a male mold base 1, a last rotating block 2 and a shoe last mold core 3 are provided, and the last rotating block 2 is pivotally connected to the male mold The base 1 and the shoe last mold core 3 are connected to the male mold base 1 and arranged on the rear side of the last rotating block 2 .

Second, as shown in step b of FIG. 1 and FIG. 2 to FIG. 4 , a master mold 100 is provided. The master mold 100 is provided with a mold cavity 101, and the last rotating block 2 and the shoe last mold core 3 are accommodated in the mold cavity Inside the 101.

Third, as shown in step c in FIG. 1 and FIG. 4 to FIG. 6 , the injection and cooling operations are performed on the mold cavity 101, and then the mold release operation is performed on the master mold 100, so that the last rotating block 2 is connected to the shoe last mold. A shoe shell 200 is combined with the surface of the kernel 3 .

Among them, this injection operation is to inject molten plastic into the mold cavity 101, so that the plastic is filled between the master mold 100, the last rotating block 2 and the shoe last mold core 3; the cooling operation is to cool the plastic, so that the plastic is cooled and formed In order to combine the shoe shell 200 on the surface of the last rotating block 2 and the shoe last mold core 3 ;

Fourth, as shown in step d in FIG. 1 , FIG. 3 , and FIG. 5 to FIG. 6 , the male mold base 1 defines an axial direction y and a first radial direction x, and the shoe last mold core 3 includes a sliding block 31 And a shoe last heel slider 32, the slider 31 is sandwiched between the last rotation block 2 and the shoe last heel slider 32, the slider 31 can slide along the axial direction y and has a guiding slope 311, the shoe One side of the last sliding block 32 slides along the first radial direction x and the other side is in contact with the guiding inclined surface 311 .

The detailed description is as follows. The shoe shell mold structure 10 further includes a driver 4. The sliding block 31 is passed through the male mold base 1 and is fixed to the driver 4. The driver 4 can drive the sliding block 31 to slide along the axial direction y. One side of 31 has a guiding inclined surface 311 arranged along the axial direction y and gradually increasing in thickness w toward the direction away from the last rotating block 2 .

In addition, the male mold base 1 defines a first track 11 along the first radial direction x, the guiding inclined surface 311 defines a second track 312 along the axial direction y, and a first slider 32 extends from the top of the shoe last heel slider 32. The block 322 and the front side have a butting inclined surface 323 , the first sliding block 322 is embedded in the first rail 11 and slides along the first rail 11 , the butting inclined surface 323 abuts against the guiding inclined surface 311 , and the butting inclined surface 323 is along the axial direction y extends a second slider 324, the second slider 324 is embedded in the second rail 312 and can move relatively with the second rail 312, so that the shoe last and the slider 32 are connected to the male mold base 1 and can be moved along the It slides along the first radial direction x, and the other side is in contact with the guiding inclined surface 311 and can move relative to the guiding inclined surface 311 .

Fifth, as shown in step e of FIG. 1 and FIG. 7 to FIG. 8 , move the sliding block 31 up along the axial direction y, and the shoe last and the sliding block 32 will be guided by the guiding inclined surface 311 along the first diameter. Move toward x toward the last rotating block 2 , so that the shoe shell 200 is separated from the shoe last and the slider 32 .

Wherein, when the sliding block 31 moves up along the axial direction y, the guiding inclined surface 311 will shrink inward in the direction close to the last rotating block 2, and at the same time, the shoe last heel sliding block 32 will be restrained by the second sliding block 324 and the second rail 312. Continue to abut the guiding slope 311, and the shoe last heel slider 32 is restrained by the first slider 322 and the first track 11 and can only slide along the first radial direction x, so the shoe last heel slider 32 is driven along the Moving in the direction of approaching the last rotating block 2 along the first radial direction x, a gap is generated between the shoe shell 200 and the shoe last heel slider 32, and further the shoe shell 200 and the shoe last heel slider 32 are separated from each other.

Sixth, as shown in step f in Figure 1, Figure 3, Figure 5 to Figure 6, the male mold base 1 defines a second radial direction z, the shoe last and the slider 32 have two outer inclined surfaces 321, and the shoe last The mold core 3 further includes two shoe last side sliders 33, the two shoe last side sliders 33 are arranged on both sides of the shoe last heel slider 32, and one side of each shoe last side slider 33 can be along the second side. The radial direction z slips and the other side abuts each of the outer inclined surfaces 321 .

It is further explained as follows, both sides of the shoe last and the slider 32 have two outer inclined surfaces 321 located on the second radial direction z and gradually reducing the distance s in the direction away from the last rotating block 2 .

In addition, two third sliders 12 extend from two sides of the male mold base 1, one or more pairs of projections 325 extend from the left and right sides of the shoe last and the slider 32, and two outer inclined surfaces 321 are formed in one or more For the end of the bump 325, a third track 331 is defined on the top of each shoe last side slider 33 along the second radial direction z, and each third slider 12 is embedded in each third track 331 and can be connected with each other. The third rail 331 moves relatively, and one or more pairs of grooves 332 are formed on the inner side of the two shoe last side sliders 33 along the direction perpendicular to the axial direction y and the second radial direction z, and each pair of protrusions 325 is embedded in each The pairs of grooves 332 slide along each pair of grooves 332, and the inner walls of each pair of grooves 332 have two inner inclined surfaces 333 abutting against the two outer inclined surfaces 321 and capable of relative movement with the two outer inclined surfaces 321, so that One side of each shoe last side slider 33 is connected to the male mold base 1 and can slide along the second radial direction z, and the other side is in contact with each outer inclined surface 321 and can be connected with each outer inclined surface 321 relative movement.

Wherein, the last rotating block 2 is detachably connected to the lower end of the front side of the side slider 33 of the second shoe last, that is, the last rotating block 2 can be assembled or disassembled to the lower end of the front side of the side slider 33 of the second shoe last. Detailed description Such as Next, the rear side of the last rotating block 2 is provided with an inward concave groove 21, the left and right inner walls of the inward concave groove 21 are extended with two stop lock blocks 22, and the lower end of the front side of the second shoe last side slider 33 extends. There are two locking blocks 334 disposed between the two stopper locking blocks 22. The two locking blocks 334 are accommodated in the inwardly recessed groove 21 and can be approached or separated from each other, so that the two shoe last side sliders 33 are along the second diameter. When moving outward toward z, the second locking block 334 will be stopped and positioned by the second blocking lock block 22, and when the second shoe last side slider 33 moves inward along the second radial direction z, the second locking block 334 will be disengaged on the second stop block 22 .

Seventh, as shown in step g in FIG. 1 and FIG. 7 to FIG. 8 , move the shoe last and the slider 32 to the last rotating block 2 , and the two shoe last side sliders 33 will be guided by the two outer inclined surfaces 321 And move inward along the second radial direction z, so that the shoe shell 200 is separated from the side slider 33 of the second shoe last.

Wherein, when the shoe last and the slider 32 move along the first radial direction x toward the last rotating block 2, the two outer inclined surfaces 321 will shrink inward in the direction close to the last rotating block 2, and the two shoe lasts slide sideways at the same time. The block 33 is restrained by the convex block 325 embedded in the groove 332 and will continue to abut the two outer inclined surfaces 321 , and the two shoe last side sliders 33 are restrained by the third slider 12 and the third rail 331 and can only follow The second radial direction z slides, so the second shoe last side slider 33 is driven to move inward along the second radial direction z, so that a gap is generated between the shoe shell 200 and the second shoe last side slider 33, thereby allowing the shoe The shell 200 is separated from the sliding blocks 33 of the side edges of the two shoe lasts.

Eighth, as shown in step h of FIG. 1 and FIG. 9 to FIG. 10 , pivoting the last rotating block 2 relative to the male mold base 1 will drive the shoe shell 200 to follow the rotation of the last rotating block 2 to be separated from the shoe last. Mold core 3, and then remove the shoe shell 200 from the last rotating block 2.

The detailed description is as follows. In step h, the second shoe last side slider 33 has moved inward along the second radial direction z, so the second locking block 334 has been disengaged from the second blocking lock block 22, so that the last rotating block 2 has been removed. It can pivot relative to the male mold base 1 after being separated from the male mold base 1 .

In this way, when the sliding block 31 moves up along the axial direction y, the shoe last and the shoe last block 32 will be guided by the guiding inclined surface 311 to move along the first radial direction x in the direction of approaching the last rotating block 2, so that the shoe shell 200 is separated from the shoe last and the slider 32, and the second shoe last side slider 33 will be guided by the two outer inclined surfaces 321 along the second radial z direction Move inwardly, so that the shoe shell 200 is separated from the side slider 33 of the second shoe last, and then the last rotating block 2 pivots relative to the male mold base 1, and the shoe shell 200 can follow the rotation of the last rotating block 2 and quickly disengage from the base 1. The shoe last mold core 1, and then the finished product of the shoe shell 200 is obtained, so that the shoe shell 200 does not need to be taken out by brute force or special skills, and also prevents the shoe shell 200 from being scratched or deformed due to brute force or special skills. Achieving the shoe shell mold structure 10 has the advantages of convenient demoulding, shortening production time and improving the yield of finished products.

To sum up, the shoe shell mold structure of the present invention and its operation method have never been seen in similar products and have been publicly used, and have industrial applicability, novelty and progress, and fully meet the requirements for patent application. , please check carefully and grant the patent in this case to protect the rights of the inventor.

10: Shoe shell mold structure

1: Male mold base

2: Last rotating block

3: Shoe last mold kernel

32:Shoe Last Heel Slider

33:Shoe last side slider

4: Drive

Claims (13)

A shoe shell mold structure comprises: a male mold base defining an axial direction and a first radial direction; a last rotating block pivotally connected to the male mold base; and a shoe last mold core connected to The male mold base is disposed on the rear side of the last rotating block. The shoe last mold core includes a sliding block. The sliding block passes through the male mold base and can slide along the axial direction. The sliding block One side of the block has a guiding inclined surface arranged along the axial direction and gradually increasing in thickness in the direction away from the last rotating block. The shoe last mold core further comprises a shoe last heel slider, one side of the shoe last heel slider It is connected to the male mold base and can slide along the first radial direction, and the other side abuts on the guiding inclined surface and can move relatively with the guiding inclined surface. The shoe shell mold structure according to claim 1, wherein the male mold base defines a first track along the first radial direction, the guide slope defines a second track along the axial direction, and the shoe last heel A first sliding block extends from the top of the sliding block and a butting slope is formed on the front side, the first sliding block is embedded in the first track and slides along the first track, and the abutting slope abuts against the guiding slope, A second sliding block extends along the axial direction of the abutting inclined surface. The second sliding block is embedded in the second rail and can move relatively with the second rail. The shoe shell mold structure according to claim 1, further comprising a driver, the driver is fixed on the sliding block and drives the sliding block to move, the sliding block is sandwiched between the last rotating block and the shoe last heel sliding between blocks. The shoe shell mold structure according to claim 1, wherein the male mold base defines a second radial direction, and two sides of the shoe last and the slider are located in the second radial direction and rotate away from the last head The two outer inclined surfaces with the spacing between the blocks gradually reducing in the direction of the shoe last, the shoe last mold core further comprises two shoe last side sliders, the two shoe last side sliders are arranged on both sides of the shoe last heel slider, each One side of the shoe last side slider is connected The male mold base can slide along the second radial direction, and the other side is in contact with each of the outer inclined surfaces and can move relative to each of the outer inclined surfaces. The shoe shell mold structure as claimed in claim 4, wherein two third sliders extend from both sides of the male mold base, and at least a pair of protrusions extend from the left and right sides of the shoe last and the slider. Two outer inclined surfaces are formed at the ends of the at least one pair of protruding blocks, a third track is defined on the top of each of the shoe last side sliders along the second radial direction, and each of the third sliders is embedded in each The third track is capable of moving relative to the third track. The inner sides of the two shoe last side sliders are provided with at least one pair of grooves along the direction perpendicular to the axial direction and the second radial direction. The pair of bumps are embedded in the at least one pair of grooves and slide along the at least one pair of grooves, and the inner walls of the at least one pair of grooves have abutting against the two outer inclined surfaces and can be connected with the two outer inclined surfaces Two inner inclined surfaces that move relative to each other. The shoe shell mold structure according to claim 5, wherein the last rotating block is detachably connected to the front lower ends of the two shoe last side sliders. The shoe shell mold structure as claimed in claim 6, wherein an inward concave groove is provided on the rear side of the last rotating block, and two stop blocks extend from the left and right inner walls of the inward concave groove. Two locking blocks extend from the lower end of the front side of the last side slider, the two locking blocks are accommodated in the inwardly recessed groove, and the two locking blocks can approach or move away from each other until they are stopped and positioned by the two blocking locking blocks. A method for operating a shoe shell mold structure, the steps of which include: a) providing a male mold base, a last rotating block and a shoe last mold core, the last rotating block is pivotally connected to the male mold base, the shoe The last mold core is connected to the male mold base and is arranged on the rear side of the last rotation block; b) a female mold is provided, and the female mold is provided with a mold cavity, and the last rotation block and the shoe last mold core are provided. It is accommodated in the inside of the mold cavity; c) the mold cavity is injected with material and cooled, and then the mother mold is demolded, so that the last rotating block is combined with the surface of the shoe last mold kernel. has a shoe shell; d) The male mold base defines an axial direction and a first radial direction. The shoe last mold core includes a sliding block and a shoe last heel slider. The sliding block is sandwiched between the last rotating block and the shoe. Between the last and the slider, the slider can slide along the axial direction and has a guiding inclined surface, one side of the shoe last heel slider slides along the first radial direction and the other side abuts on the Guide slope; e) move the sliding block up along the axis, the shoe last heel slider will be guided by the guide slope and move along the first radial direction toward the last rotating block, so that all The shoe shell is separated from the shoe last and the slider; and h) pivoting the last rotating block relative to the male mold base will drive the shoe shell to rotate along with the last rotating block to be separated from the shoe last mold Then remove the shoe shell from the last rotating block. The operation method of the shoe shell mold structure according to claim 8, further comprising a step f) after the step e), in step f), the male mold base defines a second radial direction, the shoe last The heel slider has two outer inclined surfaces, and the shoe last mold core further includes two shoe last side sliders, the two shoe last side sliders are arranged on both sides of the shoe last heel slider, each side of the shoe last One side of the side slider can slide along the second radial direction and the other side is in contact with each of the outer inclined surfaces. The operation method of the shoe shell mold structure according to claim 9, further comprising a step g) after step f), in step g), the shoe last is approached with the slider toward the last rotating block, the The two shoe last side sliders are guided by the two outer inclined surfaces to move inward along the second radial direction, so that the shoe shell is separated from the two shoe last side sliders. The operation method of the shoe shell mold structure according to claim 9, wherein in step f), the last rotating block is extended with two stop lock blocks, and the two shoe last side sliders are extended with two stop blocks arranged on the last. Two locking blocks between the locking blocks, when the side sliders of the two shoe lasts move outward along the second radial direction, the two locking blocks will be stopped and positioned by the two blocking blocks, the two shoe lasts When the side sliding block moves inward along the second radial direction, the two locking blocks are disengaged from the two blocking locking blocks. The operation method of the shoe shell mold structure according to claim 8, wherein in step d), the guiding inclined surface is arranged along the axial direction and gradually increases in thickness in the direction away from the rotating block of the last. The operation method of the shoe shell mold structure according to claim 9, wherein in step f), the distance between the two outer inclined surfaces is located in the second radial direction and gradually decreases in the direction away from the rotating block of the last.

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