KR101866658B1 - Mold for manufacturing of shoes with dual outsole and the shoes manufactured using the same - Google Patents

Abstract

A mold apparatus for forming a bottom portion and a second outsole attached to a first outsole and a first outsole of a shoe to form an outer shape of the shoe and to accommodate an upper portion surrounding at least a part of the bottom portion, A mold for manufacturing a dual outsole comprises a top accommodating portion for accommodating the upper portion of the shoe with the bottom portion facing upwardly and a lower end portion for forming a stepped portion to be stepped on one end portion of the upper accommodating portion, mold; An intermediate mold having a bottom portion cut out in a shape corresponding to the shape of the bottom portion and accommodating the bottom portion of the received shoe so as to expose the top portion; And a first injection space portion corresponding to a shape of a first outsole to be formed on the bottom portion is formed and a second injection space portion in which a second outsole to be attached to the outsole is accommodated and attached is formed in the first injection space portion And an upper mold having an injection port for injecting the molten outsole member into the first injection space part.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a mold for manufacturing a dual outsole shoe and a shoe manufactured using the same,

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a mold apparatus for manufacturing a dual outsole and a footwear manufactured using the same.

In recent years, various kinds of shoes having various designs have been manufactured by improving living standards and various needs of consumers. Also, various kinds of special shoes according to respective functions are also being launched variously. However, the shoe which is released in various kinds can be seen in the structure.

Shoes usually consist of shoe outsole and upper, and shoe outsole can be divided into outsole, midsole, and insole.

The outsole is usually made of rubber, which is the main function of the outsole for anti-slip, abrasion resistance and landing. The material of the midsole is variously composed. Generally, the material of the midsole is widely used. First, it is a urethane midsole using liquid urethane resin which is foam-molded. Secondly, it is a midsole made mainly of ethylene vinyl acetate.

The midsole and the outsole are manufactured separately and are manufactured separately, and then the outsole and the midsole are bonded together using an adhesive to form the shoe sole. The shoe sole is attached again using the upper and adhesive do.

However, in the case of the shoe manufactured in this way, the adhesive process is carried out mostly by hand, so that the manufacturing cost is increased due to the labor cost.

The present invention provides a mold for shoe manufacturing and a shoe manufactured by minimizing the use of an adhesive in a shoe manufacturing process so as to minimize the work according to manpower, thereby minimizing the manufacturing cost.

The present invention also provides a mold for shoe manufacturing and a shoe produced by the method, wherein a separate painting process or an adhering step can be omitted by making the production of a double outsole possible without using an adhesive.

In another aspect, the present invention provides a manufacturing footwear accordingly shoe mold and the manufacture can be minimized shoe manufacturing costs by minimizing the number of shoe manufacturing processes.

A mold apparatus for forming a bottom portion and a second outsole attached to a first outsole and a first outsole of a shoe to form an outer shape of the shoe and to accommodate an upper portion surrounding at least a part of the bottom portion, A mold for manufacturing a dual outsole comprises a top accommodating portion for accommodating the upper portion of the shoe with the bottom portion facing upwardly and a lower end portion for forming a stepped portion to be stepped on one end portion of the upper accommodating portion, mold; An intermediate mold having a bottom portion cut out in a shape corresponding to the shape of the bottom portion and accommodating the bottom portion of the received shoe so as to expose the top portion; And a first injection space portion corresponding to a shape of a first outsole to be formed on the bottom portion is formed and a second injection space portion in which a second outsole to be attached to the outsole is accommodated and attached is formed in the first injection space portion And an upper mold having an injection port for injecting the molten outsole member into the first injection space part.

In addition, a protruding airtight portion is formed on the periphery of the bottom portion of the cut-out portion and the periphery of the first injection space portion, and an airtight portion accommodating portion formed in a groove shape to receive the airtight portion and seal the airtight portion is formed in the other .

At least one of the corners of the mold halves and at least one of the corners of the upper mold is formed with a protruding fixing part. And a fixing portion accommodating portion for fixing the fixing portion to the fixing portion.

Further, the stopping mold is formed so as to be separated into a left portion and a right portion, and the left mold portion and the right mold portion are connected to a first rotational axis pair in the vertical direction,

The first rotary shaft pair is provided at a first hinge portion that rotates about a second rotation axis in the horizontal direction so that the intermediate mold rotates up and down, and the upper mold rotates the second rotation shaft to the first hinge portion And can be pivoted up and down.

And a support portion to which the second rotation shaft is fixed.

Also, the molten outsole member may be a foamed PVC.

Further, the upper mold may be provided with an air outlet communicating with the outside so that the air in the first injection space may flow out when the foamed member in the molten state is injected.

On the other hand, the shoe according to the present invention comprises an upper which forms the upper contour of the shoe; A bottom part provided at the bottom of the upper part; And an outsole provided on a bottom surface of the bottom portion,

The outsole includes a first outsole made of a foamed synthetic resin and formed on the bottom of the bottom and the bottom in a non-adhesive manner; And a second outsole provided on a bottom surface of the first outsole and formed in a non-adhesive manner by forming a fused surface with the first outsole.

The second outsole may be formed of a material having a color different from that of the first outsole.

The mold for shoe manufacturing according to the present invention minimizes the use of the adhesive in the shoe manufacturing process, minimizes the work according to the manpower, minimizes the manufacturing cost, and enables the production of the double outsole without using the adhesive, Or the bonding step can be omitted.

In addition, the mold according to the present invention and the shoe manufactured using the same can minimize the manufacturing cost by minimizing the number of manufacturing processes.

FIG. 1 and FIG. 2 are schematic views showing a state of a shoe manufactured using a metal mold according to an embodiment of the present invention.
3 is a perspective view showing a mold for shoemaking according to an embodiment of the present invention.
Fig. 4 is a perspective view showing a state in which the upper mold of the mold shown in Fig. 3 is rotated and raised.
5 is a view showing the bottom surface of the upper mold of the mold of FIG.
Fig. 6 is a perspective view showing an intermediate mold of the mold shown in Fig. 3 which is separated and turned to the right and left. Fig.
Fig. 7 is a perspective view showing a state in which the upper end and the stopping die of the mold of Fig. 3 are rotated and raised.
8 to 12 are perspective views sequentially illustrating a process of producing shoes using a mold for shoe manufacturing according to an embodiment of the present invention.

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. In the absence of special definitions or references, the terms used in this description are based on the conditions indicated in the drawings. The same reference numerals denote the same members throughout the embodiments. For the sake of convenience, the thicknesses and dimensions of the structures shown in the drawings may be exaggerated, and they do not mean that the dimensions and the proportions of the structures should be actually set.

A shoe manufactured using a mold according to an embodiment of the present invention will be described with reference to FIGS. 1 and 2. FIG. FIG. 1 and FIG. 2 are schematic views showing a state of a shoe manufactured using a metal mold according to an embodiment of the present invention.

A shoe 10 manufactured using a mold for manufacturing a dual outsole according to an embodiment of the present invention includes an upper part 11, an insole 12, a bottom part 13, a first outsole 14, a second outsole 15).

The upper 11 and the insole 12 are similar to the conventional structure and various kinds of the upper 11 and the insole 12 can be applied in terms of construction and material. The upper part 11 forms the upper contour of the shoe and the insole 12 can be inserted into the inner space of the shoe 10 or attached to the bottom part 13 formed by the bottom part 13 and the upper part 11 have.

The bottom portion 13 is provided between the insole 12 and the first outsole 14 and injects the first outsole member in a non-adhesive manner with respect to the first outsole 14, specifically, in a molten state, / ≪ / RTI > At this time, the upper part 11 is provided in such a manner as to cover at least part of the bottom surface of the bottom part 13, so that it is attached integrally with the first outsole 14 without any adhesive during the mold working.

The first outsole 14 may be made of a foamed synthetic resin, for example, a foamed PVC material.

The second outsole 15 is provided on the bottom surface of the first outsole 14 and is formed in a non-adhesive manner by forming a fused surface with the first outsole 14. At this time, the second outsole 15 may be made of a material having a color different from that of the first outsole 14, or a material reinforced with properties such as abrasion resistance.

3 to 7, a mold for manufacturing a dual outsole is described according to an embodiment of the present invention. 3 is a perspective view showing a state of a mold for shoe manufacturing according to an embodiment of the present invention, FIG. 4 is a perspective view showing a state where an upper mold of the mold of FIG. 3 is rotated and raised, Fig. 7 is a view showing the bottom surface of the uppermost mold. 6 is a perspective view showing a state in which an intermediate mold of the mold shown in FIG. 3 is separated and bent to the right and left, and FIG. 7 is a perspective view showing a state where an upper end and an intermediate mold of the mold shown in FIG.

3, the mold apparatus 100 according to the present invention includes a mold unit including an upper mold 150, an intermediate mold 130, and a lower mold 110, and peripheral structures in which the mold unit is fixed and supported I.e., a work table 210 and a support 220.

The mold part is divided into three parts in the vertical direction. Specifically, the lower mold 110 is formed in a rectangular box shape at the lowermost end, and the intermediate mold 130 and the upper mold 150 are sequentially stacked on the upper mold 110.

The upper mold 150 has an injection port 151 communicating with the first injection space to be described later so that the molten outsol member can be injected, And an air outlet 153 communicating with the outside so as to be discharged can be formed.

The supporting part 220 is a component to which the upper mold 150 and the hinge provided to rotate the intermediate mold 130 are fixed. The work table 210 supports the lower mold 110 and supports the lower mold 110, The stopping mold 130 and the upper mold 150 can be moved between the supporting unit 220 and the operator. The work table 210 may be formed by rotating along a circular orbit.

Referring to FIGS. 4 and 5, a first injection space 160 is formed on the bottom surface of the upper mold 150. The first injection space 160 functions as a mold for forming the outer shape of the first outsole through cooling after the molten molding material for forming the first outsole is injected. The injection port 151 formed at the upper end of the upper mold 150 communicates with the injection ports 167 exposed toward the first injection space 160 of the upper mold 150, (160).

A second injection space 165 is formed in the first injection space 160 to define a space for receiving and attaching a second outsole to be attached to the first outsole. The second outsole is accommodated in the second injection space 165 in the first injection space 160 in a state in which molding is completed before the raw material in the molten state for forming the first outsole is injected.

The air outlet port 169 formed in the first injection space 160 communicates with the air outlet 153 formed on the upper surface of the upper mold 150 so that the air within the first injection space 160 The air is discharged to the outside.

Referring to FIG. 4, the bottom mold opening 130 is formed with a bottom-side exposure cut-out portion 133 penetrating vertically. The bottom exposed cutout 133 is cut in the shape of a bottom so that the bottom of the shoe described above can be exposed.

Also, a structure for forming a gas-tight structure is formed around the periphery of the bottom-side exposed cut-off portion 133 and the periphery of the first injection space portion 160. Specifically, a groove-shaped airtight portion accommodating portion 132 is formed around the bottom exposed cutout portion 133 of the stopping mold 130 according to the present embodiment, and a first injection space portion (not shown) of the upper mold 150 160 are formed in the protruding shape airtight portion 161 which is inserted into the airtight portion accommodating portion 132 and forms an airtight structure.

A through hole 1321 is formed in the airtight portion accommodating portion 132. The through hole 1321 prevents the insertion of the airtight portion 132 due to an increase in pressure due to air compression in the airtight portion receiving portion 132 during the insertion of the airtight portion 161 into the airtight portion receiving portion 132, Even when the airtight portion 161 is separated from the airtight portion accommodating portion 132, the air can be introduced to facilitate the separation.

In the present embodiment, the hermetic portion receiving portion 132 is formed in the stop mold 130 and the hermetic portion 161 is formed in the upper mold 150, but it is also possible to form the hermetic portion receiving portion 132 in reverse.

At least a part of the upper end of the stopping mold is provided with a groove-shaped fixed portion receiving portion 131 and a protruding fixed portion 155 inserted into the fixed portion accommodating portion 131 is formed around the lower end of the upper mold . The fixing part 155 is inserted into the fixing part accommodating part 131 when the upper mold 150 is rotated downward and is positioned at the upper end of the stopping mold 130. The fixing portion 155 is inserted into the fixing portion accommodating portion 131 to prevent the upper mold 150 and the stopping mold 130 from being combined with each other to form a clearance.

Referring to FIGS. 4 and 6, the upper mold 150 and the components for rotating the mold stopper 130 are included. Specifically, the upper mold 150 is configured to pivot up and down, and the mold stopper 130 is pivotally moved up and down, and is formed so as to be separated from the left and right sides so that the left and right sides are opened to the left and right as shown in Fig. As shown in Fig.

The first hinge portion 142 rotates about the second rotary shaft 140 in a predetermined horizontal direction. The left and right sides of the stopping die 130 are connected to the first pair of rotation shafts 143 in the vertical direction in the first hinge portion 142, respectively. The left and right portions of the mold stopper 130 pivot about the first rotation shafts 143 in opposite directions and in opposite directions.

The upper mold 150 is connected to the second rotation shaft 140 through the second hinge 141. [ The second hinge portion 141 shares the second rotation shaft 140 with the first hinge portion 142 and rotates up and down. The second rotation shaft 140 is fixed to the support portion 220 described above.

Referring to FIG. 7, the lower mold 110 has a top receiving portion 111 and a stepped portion 113 formed thereon. The upper receiving part 111 accommodates the upper part of the shoe with the bottom part facing upward as described above. The step 113 is formed so as to be stepped at one end of the upper receiving part, so that the upper end of the upper is mounted when the upper is received in the upper receiving part 111.

8 to 12, a process of manufacturing a shoe using a mold for manufacturing a dual outsole according to an embodiment will be described. 8 to 12 are perspective views sequentially illustrating a process of producing shoes using a mold for shoe manufacturing according to an embodiment of the present invention.

8, in order to carry out the injection process, the shoes being manufactured from the upper part 11 to the bottom part 13 in the state where the upper mold 150 and the stopping mold 130 are lifted up are turned upside down And is accommodated in the upper receiving portion 111. At this time, the front end portion of the upper member 11, that is, the nose portion of the shoe, is in a state of extending over the step portion 113.

Then, as shown in FIG. 9, the intermediate mold 130 is rotated downward and positioned on the lower mold 110. At this time, the bottom portion 13 of the shoe is exposed to the upper portion of the stopping mold 130. Also, in this process, the second outsole 15 formed in the second injection receiving portion 165 in the first injection receiving portion 160 is received.

Next, as shown in FIG. 10, the upper mold 150 is rotated downward to be positioned on the stopping mold 130, and the molding material, that is, molten PVC or the like is injected through the injection port 151 into the first injection space . At this time, the air inside the upper mold 150 is discharged to the outside through the outlet 153 in accordance with the injection of the molding material.

After the injection of the molding material is completed, the cooling process is performed, the upper mold 150 is lifted up as shown in FIG. 11, and the left and right portions of the mold stopper 130 are opened to the left and right as shown in FIG. (10) to the outside.

In the case where the stopping mold 130 is not formed in a shape in which the stopping mold 130 is separated from the left and right, it is difficult to push out the shoe 10 having completed the injection process to the outside. However, when the stopping mold 130 is separated from the left and right as in the present embodiment The shoe 10 can be easily taken out to the outside regardless of the quality of the injection process.

While the present invention has been described with reference to exemplary embodiments, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims. have.

10: Shoes
11: upper
12: Insole
13:
14: First outsole
15: Second outsole
100: Mold
110: Lower mold
130: Stop mold
150: Upper mold
210: worktable
220: Support

Claims (10)

In forming the bottom portion, and a contour of the footwear, and a mold apparatus for forming a second outsole to accommodate the upper enclosing at least a portion the bottom of which is attached to a first outsole and a first outsole of the footwear,
A lower end mold having a top receiving portion for receiving the entire upper of the shoe with the bottom portion facing upward and a step portion formed at one end of the upper receiving portion to receive the front end of the upper,
An intermediate mold having a bottom portion cut out in a shape corresponding to the shape of the bottom portion and accommodating the bottom portion of the received shoe so as to expose the top portion; And
A first injection space portion corresponding to the shape of the first outsole to be formed in the bottom portion is formed and a second injection space portion in which the second outsole to be attached to the first outsole is accommodated and attached is formed in the first injection space portion And an upper mold having an injection port for injecting a molten outsole member into the first injection space,
Wherein at least one of the corners of the mold halves and at least one of the corners of the upper mold is formed with a protruding fixing part and the remaining one of the fixing molds is accommodated in a fixed position And a fixing part for fixing the fixing part . The method according to claim 1,
Wherein the airtight portion is formed in a protruding shape on one of the periphery of the bottom portion and the first injection space portion and the airtight portion accommodating portion formed in a groove- Molding equipment for the manufacture of outsole shoes. delete The method according to claim 1,
Wherein the stopping die is formed so as to be separated into a left portion and a right portion and the left and right halves of the intermediate mold are connected to a pair of first rotation shafts in the vertical direction and are rotated left and right respectively. 5. The method of claim 4,
Wherein the first pair of rotation shafts is provided in a first hinge portion that rotates about a second rotation axis in the horizontal direction so that the stopping mold rotates up and down,
Wherein the upper mold is connected to a second hinge portion that shares the second rotation shaft with the first hinge portion and rotates up and down. 6. The method of claim 5,
And a support portion to which the second rotation shaft is fixed. The method according to claim 1,
Wherein the molten outsole member is foamed PVC. The method according to claim 1,
Wherein the upper mold is provided with an air outlet communicating with the outside so as to allow the air in the first injection space to flow out when the foamed member in a molten state is injected.
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