JP2001145963A - Method of manufacturing foamed shoe - Google Patents

Abstract

PROBLEM TO BE SOLVED: To manufacture a foamed shoe high in structural strength and quality. SOLUTION: A foamable mixed material is integrally foamed to be cut or integrally injected and foamed to form an equi-proportional midsole core and, succeedingly, an outsole which is formed by applying an adhesive to the equi- proportional midsole core and the constitutional part of a shoe such as an upper provided to a shoe extruder are put in an equi-proportional fixed form mold to be integrally bonded, compressed, cooled and molded and, by this cooling, compressing and molding step, the peripheral structure of the foamed midsole having embossed patterns is formed to complete a foamed shoe. The midsole of the foamed shoe in a softened state is covered with a thermoplastic decorative layer and the periphery of the upper provided to a shoe is grasped by one set of molds and the upper, the midsole in a softened state and the outsole are succeedingly pressed and bonded by a shoe extruder to complete a shoe.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a method for producing a kind of foam shoes.

[0002]

2. Description of the Related Art A shoe sole made of a general EVA (ethylene / vinyl acetate copolymer) foam material has a middle midsole and a bottom outsole bonded to each other. A decorative strip is adhered around the midsole. The EVA foam layer of the shoe has relatively good elasticity and flexibility, and its main material composition is a predetermined ratio of EVA,
It contains a foaming agent and a cross-linking agent, and mixes and stirs them, and then heat-foams to form a foamed material layer having elasticity. The material of the foamed shoe thus formed has a comfortable feeling when worn, elasticity and cushioning effect. The present inventor has already
A method of manufacturing a foamed midsole and a contour thereof is provided (Taiwan Patent Publication No. 287091), which is an invention related to a method of manufacturing a foamed midsole. Glue the strip. The well-known manufacturing method of this decorative strip has been disclosed by the present inventors in Taiwan Patent Publication No. 318810, and the present invention has already obtained United States Patent No. 5,843,352. According to the present invention, a decorative strip core having a fixed reduction ratio is manufactured from a foamed mixed material, and is put into a heat-pressing mold or an embossing mold having a reduced ratio or an equal ratio to obtain a decorative strip product having an embossed pattern. I have. However, in practice, the parts such as the foam midsole and the decorative strip in the well-known invention are individually foam-molded and then further bonded and integrated. Therefore, the known method for producing foam shoes requires not only a large cost for a necessary molding die, but also a complicated production method, which requires improvement. Furthermore, in the well-known manufacturing method, parts such as foam midsole and decorative strip,
It is foamed separately, and the frame is selected and the positions are aligned and bonded to form a shoe. Therefore, when the user exercises vigorously, there is a disadvantage that the bonding portion of the decorative strip having the embossed pattern comes off and the bonding is not tight. Therefore, it has been a common challenge for shoe manufacturers how to increase the overall structural strength of foam shoes and to overcome the shortcomings of known shoe manufacturing methods.

[0003]

SUMMARY OF THE INVENTION It is an object of the present invention to provide a method for producing a foamed shoe, which separately manufactures a well-known midsole and a decorative strip around it, and further adheres them. It can solve the drawbacks of the well-known manufacturing method, and can increase the structural strength of the shoes. In addition, it can meet the demand of high quality accuracy, and greatly reduce the manufacturing cost and time by adjusting the manufacturing equipment and process. And a method for producing foamed shoes having industrial value and inventive step.

[0004]

According to a first aspect of the present invention, there is provided a method for producing a foamed shoe, comprising mixing and stirring a material containing a predetermined ratio of EVA (ethylene / vinyl acetate copolymer), a foaming agent and a crosslinking agent. The foamed mixed material is heated and foamed to form a long flat foam, and the foam is cut by a cutting machine to obtain a plurality of equal ratio midsole cores, and the heating equipment heats the equal ratio midsole core. The softened state, and then the softened equi-ratio midsole core, the outsole coated with adhesive, and the upper laid on the last of the shoe press into one fixed-form mold Injection, compression cooling fixed mold, and instantaneous local pressurization to the fixed mold of this equal ratio, this fixed mold is a type that integrally compresses the upper, equal ratio midsole core and outsole, For cooling pressure step Ri together form the structure of the surrounding midsole with embossed pattern, characterized in that to obtain a product of the foamed shoe, and a method of manufacturing a sparkling shoes. According to a second aspect of the present invention, the foamed and mixed material is integrally injected or rolled to form a midsole core having a fixed reduction ratio, and further obtained by heating using a mold to obtain a completely foamed midsole core. A method for producing a foamed shoe according to claim 1 characterized by the above-mentioned. A third aspect of the present invention is the method for manufacturing a foamed shoe according to the second aspect, wherein a concave hole for fitting a cushion body is formed on an upper surface of a heel portion of the equal ratio midsole core. According to a fourth aspect of the present invention, there is provided the method for manufacturing a foamed shoe according to the first aspect, wherein several small decorative plates having different shapes, colors, and materials are put in the fixed mold in advance. The invention according to claim 5 is characterized in that a hot melt adhesive is applied to an upper surface of the outsole and a bottom portion of the upper and is pressure-bonded integrally with a softened, equal-ratio midsole. The method of manufacturing foam shoes. According to a sixth aspect of the present invention, in the method for manufacturing a foamed shoe, one bottom is connected to the bottom of the upper, and the decorative layer is sewn or adhered so as to surround the periphery of the upper, and one pull is formed along the bottom of the decorative layer. A line is drilled, the upper is clad in the last of the shoe press, followed by a softened equal proportion midsole covering the bottom location of the upper and the softened equal proportion. The frame side extending around the midsole is brought into close contact with the outer periphery of the upper bottom and fitted into the accommodation space sandwiched between the upper and the decoration layer,
Thus, the equal ratio midsole is completely covered with the upper bottom and the decoration layer, and furthermore, the drawing line provided at the bottom of the decoration layer is drawn down, and the softened equal ratio midsole is covered with the decoration layer and positioned. Then, place the outsole on one bottom mold, apply hot melt adhesive on the upper surface of this outsole, and vertically move between the shoe press and the bottom mold using a hydraulic or pneumatic cylinder. Pressing operation, upper, softened equal ratio midsole and outsole are joined together vertically, and at the same time, the left and right side molds of the bottom mold are driven by hydraulic or pneumatic cylinders. A tightening operation is performed, an embossed pattern is formed on the softened midsole and the thermoplastic decorative layer covering the softened midsole by the uneven embossed pattern provided on the side wall of the side mold, and then the cooling pressure fixing step of the mold is performed. , Wherein the open mold to obtain a foamed shoe, and a method of manufacturing a sparkling shoes. Claim 7
The invention according to claim 6, wherein the decorative layer is a thin frame-shaped decorative piece made of a thermoplastic material having a special contour shape and color change. The invention according to claim 8 is the method for producing a foamed shoe according to claim 6, wherein the front contact and the heel contact of the outsole are pressurized by pressurizing means and adhere to the front and rear end portions of the upper. . According to a ninth aspect of the present invention, there is provided a method of manufacturing a foamed shoe, wherein one bottom is connected to a bottom of an upper of the shoe, and the upper is formed on a last of a shoe pusher. The clamp-type mold with a wave-like curved surface is fixed at a position sandwiching the periphery of the upper so as to face each other, and the adhesive is accurately applied to the bottom end of the upper and the exposed part of the bottom, and Place the outsole, apply hot melt adhesive on the upper surface of the outsole, and let the hydraulic or pneumatic cylinder drive up and down between the last and the bottom of the shoe pusher to perform the upper and lower softening. The midsole and outsole of the equal ratio in the state are pressure-bonded vertically and integrally, and at the same time, the embossed pattern is provided on the left and right sides of the bottom mold, and the clamp-type A wave-like curved surface corresponding to the bottom is formed. In addition, the side mold is driven by a hydraulic or pneumatic cylinder to perform the mold clamping operation, and the curved surface of the bottom surface of the clamp type mold and the corresponding curved surface of the upper surface of the side mold are formed on the frame side around the softened midsole. It is characterized in that the embossed pattern is accurately formed on the frame side of the softened midsole by being sandwiched jointly, and then, after going through the mold cooling pressure fixing step, the mold is opened and the shoe product is taken out, It is a method of manufacturing foam shoes. According to a tenth aspect of the present invention, there is provided the method for manufacturing a foamed shoe according to the ninth aspect, wherein an instant local embossing operation is performed using a heated embossing means on a portion where the front and rear molds of the midsole meet. I have. According to the invention of claim 11, a thermoplastic decorative layer is adhered to the periphery of the upper, and the upper part of the decorative layer is sandwiched between left and right clamp-type molds. Subsequently, the softened midsole is covered with the decorative layer. A method for manufacturing a foamed shoe according to claim 9, characterized in that: A twelfth aspect of the present invention is the method for manufacturing a foamed shoe according to the ninth aspect, wherein the bottom surface of the clamp-type die is provided in a shape corresponding to the top structure of the bottom die.

[0005]

DETAILED DESCRIPTION OF THE INVENTION The present invention provides a method of manufacturing a foamed shoe, and according to the method of the present invention, a predetermined ratio of EV
A, a material containing a foaming agent and a cross-linking agent is mixed and stirred, and the foamed mixed material is heated and expanded to produce a long flat foam, which is further cut to produce a plurality of equal ratio midsole cores. Subsequently, the midsole core is heated and softened by heating equipment, or the foamed mixed material is integrally injected or rolled to produce a shoe midsole core with a fixed reduction ratio, and further using a mold. After heating and removing from the mold, it is foamed and expanded to produce a midsole core of an equal ratio shoe, thereby obtaining a softened midsole core of an equal ratio, and an outsole coated with an adhesive. And the upper put on the shoe pusher are put together in a fixed mold having an equal ratio, and are integrally bonded and pressed and cooled. This equal ratio midsole core type can be pressurized instantaneously, and is a fixed type in which the upper, the equal ratio midsole core and the outsole are pressed together to form a single unit. As a result, a contour structure around the midsole having an embossed pattern is formed, and a foamed shoe product is obtained. According to another method of manufacturing a foamed shoe of the present invention, one decorative layer is sewn around the upper, and the softened midsole is covered with the decorative layer. By the simultaneous closing operation of the side molds, the upper, the foamed midsole and the outsole can be integrally pressed and molded, and the embossed pattern can be formed on the thermoplastic decorative layer covering the softened midsole. According to another method for manufacturing a foamed shoe of the present invention, the periphery of the upper is sandwiched by a pair of clamp-type molds. The structure of the bottom of this clamp type mold corresponds to the upper structure of the two-sided mold,
Therefore, at the time of the mold closing operation, the upper part of the two-sided mold is tightly joined to the bottom of the clamp-type mold, whereby the periphery of the softened midsole can be accurately pressed and formed into an embossed pattern. . Subsequently, the mold is opened and the foamed shoe product is taken out through a mold cooling / compression molding step.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Please refer to FIGS. According to the method for producing a foamed shoe of the present invention, first, a material containing a predetermined ratio of EVA, a foaming agent and a cross-linking agent is mixed and stirred, and then the foamed mixed material is foamed by heating and expanded to obtain a long flat foam. Get 10. The foam body 10 is cut to obtain a plurality of equal ratio midsole cores 11. Subsequently, the equal ratio midsole core 11 is heated by the heating equipment. Alternatively, the foamed mixed material is directly injection-molded or rolled to obtain a midsole core 12 having a fixed reduction ratio, which is further heated by a mold A1, and the mold is opened to completely expand and expand the midsole core 13 which is completely foamed and expanded. Get. The cushioning material 15 is fitted into the concave hole 14 on the upper surface of the heel of the midsole core 13.
Subsequently, the equal ratio midsole cores 11 and 13 in the softened state
Outsole 17 and shoe press 1 with adhesive applied
9 and the upper 18 of the fixed type B1
And press-fit and cool. A plurality of small decorative plates 151 of different shapes, colors and materials are placed in advance at positions corresponding to the outer circumferences of the equal ratio midsole cores 11 and 13 of the standard mold B1, and local pressurization is instantaneously performed by the standard mold B1. Do.
The fixed mold B1 is a fixed mold in which the upper 18, the equal ratio midsole cores 11, 13 and the outsole 17 are joined by pressure to form an integral unit. A foam shoe with a midsole perimeter profile structure having

Also, the soft-sole, equal-ratio midsole core 13 can be directly cooled and fixed in the equal-size mold B2. By performing local pressurization, it is possible to obtain a standard effect of the pattern around the midsole core 13 at an equal ratio.
The mold B2 having the same ratio is a mold that forms an embossed pattern on the soft midsole core 13 in the softened state. In this manufacturing method, the periphery of the midsole core 13 after the cooling is also polished. The work can be advanced to improve the quality of the foamed midsole, followed by heating the already cooled equal proportions midsole core 13 and the recesses 14 in the upper surface of the heel of this equal proportions midsole core 13
The cushioning performance of the midsole is obtained by inserting the cushioning material 15 into the cushioning material 15 and placing several small decorative plates 151 of different shapes, colors, and materials in advance at specific positions on the wall surface of the standard mold B2 and pressing them together. And various forms can be formed. Therefore, by going through the cooling mold step of the equal proportion mold B2, it is possible to obtain a midsole having an embossed pattern and various shapes. The present manufacturing method also includes the step of forming the softened equal-ratio midsole core 13 and the upper 18 fitted to the shoe pushing machine 19 together in the equal-ratio fixed form B2.
A shoe product that does not require an outsole can be obtained by placing it inside and integrally bonding, pressing, and cooling.

One embodiment of the present invention will be described with reference to FIGS. This embodiment includes the following steps. First, one bottom 21 is connected to the bottom surface of the upper 20, and the decorative layer 22 is sewn or adhered so as to surround the periphery of the upper 20. Among them, the decorative layer 22 is a thin frame-shaped decorative piece made of a thermoplastic material having a special contour and color change, and the decorative layer 22 is sewn or adhered to a portion around the upper 20 (see FIG. 7). Decoration layer 2
One holding accommodation space is formed between 2 and the periphery of the upper 20. One draw line 23 is formed along the bottom of the decorative layer 22, and the upper 20 is connected to the last 2 of one shoe press 19.
9 Subsequently, a softened equal-ratio midsole 24 is placed on the bottom of the upper 20 and a frame 25 around the softened equal-ratio midsole 24.
Is extended, that is, the frame side 25 comes into close contact with the outer periphery of the upper 20 and is fitted into the accommodation space sandwiched between the upper 20 and the decorative layer 22 (see FIG. 7). In this manner, the equal ratio midsole 24 is completely covered with the bottom 21 of the upper 20 and the decoration layer 22, and the drawing line 23 provided on the bottom of the decoration layer 22 is drawn down, and the softened equal ratio midsole 24 is converted into the decoration layer. Cover and position at 22 (see FIG. 8). Thereafter, the subsequent steps of the embossing routine are performed.

Subsequently, the outsole 26 is placed on the bottom mold 28 of the corresponding upper and lower molds.
Hot melt adhesive is applied to the upper surface of the
Between the bottom mold 28 and the bottom mold 28 by using a hydraulic or pneumatic cylinder to vertically combine the upper 20, the softened equal ratio midsole 24 and the outsole 26 vertically and integrally. At the same time, the left and right side molds 27 of the bottom mold 28 are driven by hydraulic or pneumatic cylinders to form the mold. The two side molds 27 are formed with uneven embossed molds on the wall surfaces thereof. The softly-equaled midsole 24 and the thermoplastic decorative layer 22 covering the same are press-formed integrally to form a special contour and Form an embossed pattern. If necessary, the two side dies 27 are locally heated to provide fine ventilation holes (not shown) in the local part of the cavity wall surface of the two side dies 27, and a fine uneven pattern is formed around the midsole 24. When forming, the residual gas can be discharged smoothly as soon as the mold is closed. Next, proceed to the mold cooling stylization step,
Thereafter, the molded product is removed from the mold to obtain a foamed shoe product having a precise pattern and shape.

The outsole 26 can be provided with a structure of a front pad 261 and a heel pad 262 (see FIG. 5). By covering, the joining strength between the outsole 26 and the upper 20 can be increased. According to the manufacturing method of the present invention, the front pad 261 and the heel pad 262 of the outsole 26 are tightly pressed against the front and rear portions of the upper 20 when tightening the mold. Means presses the front pad 261 and the heel pad 262 of the outsole 26, that is, the two side dies 2
The pressurizing means corresponding to the opening / closing operation of 7 performs pressing and retreating operations, thereby increasing the bonding strength between the front and rear ends of the outsole 26 and the upper 20.

FIG. 9 illustrates another embodiment of the present invention.
Please refer to FIG. According to the manufacturing method of this embodiment, one bottom 31 is connected to the bottom surface of the upper 30, and the upper 30 is mounted on the last 29 of the shoe press 39. The last 39 is replaceable and convenient for shoe manufacturing operations. Subsequently, a pair of right and left clamp dies 40 are provided at positions sandwiching the periphery of the upper 30 so as to face each other. This clamp type mold 40
The contour of the clamping wall 45 is the same as the contour of the upper 30, and the bottom 46 of the left and right clamp molds 40 is provided with a wave-like curved surface to cover the upper 30 portion and the bottom 31 portion of the clamp mold 40. I do. That is, it is convenient to accurately apply the adhesive, and can be accurately joined to the frame side 33 around the midsole 32. The midsole 32 is in a softened state, the outsole 35 is placed on the bottom mold 38, and a hot melt adhesive is applied to the upper surface of the outsole 35,
When the foot mold 39 and the bottom mold 38 of the shoe pusher perform an up-down pressure operation by driving a hydraulic or pneumatic cylinder, the upper 30, the soft-equaled ratio midsole 32 and the outsole 35 are vertically integrated. Pressure bonding is performed to complete the shoe product.

At the same time, the side dies 3 on the left and right sides of the bottom die 38
Reference numeral 7 performs a mold clamping operation in response to driving of a hydraulic or pneumatic cylinder. In addition to the embossed pattern provided on the wall surface of the two side molds 37, a wave-like curved surface corresponding to the bottom of the clamp mold 40 is formed on the upper surface 36, thereby forming the softened equal ratio midsole 32. A special contour and an embossed shape can be accurately formed on the surrounding frame side 33. If necessary, locally preheat the two side molds 37, the foot mold 39, and the bottom mold 38, and use the embossing means heated at the portion where the front and rear molds of the midsole 32 meet to instantly perform local embossing routine work. To obtain a precise molding effect of the foamed shoes. Subsequently, the mold is opened and the foamed shoe product is taken out through a fixed mold cooling step. If necessary, the embossing means may be locally preheated on the two-sided mold 37, the last 39 and the bottom mold 38 of the shoe press, and the heated embossing means may be applied to the divided portions of the front and heel portions of the midsole 32. By utilizing the instant local embossing routine work, a precise pressure forming effect of the foamed shoes can be achieved.

Also in the manufacturing method of this embodiment, after the thermoplastic decorative layer 22 is adhered to the periphery of the upper 30, the upper part of the decorative layer 22 is further clamped by the right and left clamp molds 40, and then the softening is performed. It is possible to completely cover the mid-sole 32 in the state with the decorative layer 22 and perform the operation of closing the mold. At this time, the upper surface 3 of the left and right two side molds 37
6 and the corresponding wave contour curved surface of the bottom surface 46 of the clamp type mold 40 on the left and right sides, a precise wave contour pattern is formed on the decorative layer 22 and burrs on the portion where the molds are fitted can be easily removed by a processing operation. Thus, high quality foam shoes can be obtained.

[0014]

In summary, the method for manufacturing foam shoes of the present invention has the drawbacks of the known manufacturing method in which the midsole and the decorative strip around it are separately manufactured and then further bonded and integrated. It can solve the problem, increase the structural strength of the shoes, meet the demands of high quality accuracy, greatly reduce the production cost and time by adjusting the production equipment and process, and the industrial value and progress This is a method for producing foamed shoes having properties.

[Brief description of the drawings]

FIG. 1 is a view showing a step of obtaining a plurality of equal ratio midsole cores by cutting a long flat foam formed by foam molding in a manufacturing method of the present invention.

FIG. 2 is a view showing a molding structure of a midsole core having a reduced ratio, a midsole obtained by foam molding the midsole, and a midsole having an embossed pattern in the manufacturing method of the present invention.

FIG. 3 is a schematic view showing a step of joining a foamed midsole, an upper and an outsole in a manufacturing method of the present invention.

FIG. 4 is an appearance display diagram of a foamed shoe manufactured by the manufacturing method of the present invention.

FIG. 5 is an exploded perspective view of parts and a mold of a foam shoe according to one embodiment of the present invention.

FIG. 6 is a view showing a combined sectional structure of an upper, a decorative layer, and a midsole of FIG. 5;

FIG. 7 is a view showing a combined sectional structure of the upper, the decorative layer, and the midsole of FIG. 5, showing a state in which the periphery of the midsole is covered on the bottom of the upper;

8 is a combined sectional structure view of the upper, the decorative layer and the midsole of FIG. 5, showing a state in which the decorative layer covers the midsole of the shoe and the periphery of the bottom of the upper. FIG.

FIG. 9 is an exploded view of a three-dimensional structure of parts and a mold of a foamed shoe according to another embodiment of the present invention.

FIG. 10 is a structural display diagram of a bottom mold and left and right side molds of FIG. 9;

FIG. 11 is a structural view of the clamp type mold shown in FIG. 9;

FIG. 12 is a view showing a pressure-combined structure of the foamed shoe of FIG. 9;

FIG. 13 is a view showing a compression structure of the mold of FIG. 9;

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 10 Foam 11, 13 Equal proportion midsole core 12 Midsole core of reduction ratio 14 Concave hole 15 Cushion body 151 Small decorative board 1
6 Midsole 17 Outsole 18 Upper 1
Reference Signs List 9 shoes A1 molding die B1, B2 equal ratio fixed mold 20 upper 21 bottom 22 decorative layer 23 lead line 24 equal ratio midsole 25 frame side 26 outsole
261 Front contact 262 Heel contact 27 Side type 28
Bottom type 29 Shoe 30 Upper 31 Bottom 32 Midsole 33 Frame side 35
Outsole 36 Top surface 37 Side type 38 Bottom type 40 Clamp type 45 Wall surface 46
bottom

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) A43B 13/38 A43D 65/00 A

Claims (12)

[Claims] In a method for producing a foamed shoe, a material containing a predetermined ratio of EVA (ethylene / vinyl acetate copolymer), a foaming agent and a crosslinking agent is mixed and stirred, and the foamed mixed material is heated and foamed to obtain a long flat. A foam is formed, and the foam is cut by a cutting machine to obtain a plurality of equal ratio midsole cores, and the equal ratio midsole core is heated to a softened state by a heating equipment, and then is softened. The equal ratio midsole core, the outsole coated with the adhesive, and the upper caught on the last of the shoe press are put together in a standard mold with the same ratio, pressed and fixed, and The instantaneous local pressurization is performed on the standard mold of the ratio, and this standard mold is a type that integrally compresses the upper, the equal ratio midsole core, and the outsole. While forming the structure around the
A method for producing a foamed shoe, comprising obtaining a foamed shoe product. 2. The method according to claim 1, wherein the foamed mixed material is integrally injected or rolled to form a midsole core having a fixed reduction ratio, and further heated using a mold to obtain a completely foamed midsole core. The method for producing a foamed shoe according to claim 1. 3. The method according to claim 2, wherein a concave hole for fitting a cushion body is formed on an upper surface of a heel portion of the equal ratio midsole core. 4. A plurality of different shapes, colors,
The method for producing a foamed shoe according to claim 1, wherein a small decorative plate made of a material is placed. 5. The foam according to claim 1, wherein a hot-melt adhesive is applied to an upper surface of the outsole and a bottom portion of the upper and pressure-bonded integrally with the soft-equal midsole. How to make shoes. 6. A method of manufacturing a foamed shoe, wherein one bottom is connected to the bottom of the upper, and a decorative layer is sewn or adhered so as to surround the periphery of the upper, and one drawing line is formed along the bottom of the decorative layer. Drilling, cuffing the upper to the last of the shoe press, followed by cuffing the softened equal proportions midsole to cover the bottom position of the upper, and the softened equal proportions midsole The outer side of the frame is closely attached to the outer periphery of the bottom of the upper and fitted into the accommodation space sandwiched between the upper and the decorative layer, thus completely covering the midsole with the bottom of the upper and the decorative layer, and further decorating Draw down the line provided at the bottom of the layer, cover and position the softened equal proportion midsole with the decorative layer, and then place the outsole on one bottom mold and the top surface of the outsole Hot The door adhesive is applied,
Between the shoe press and the bottom mold, a hydraulic or pneumatic cylinder is used to perform a vertical compression operation, and an upper, a softened equal ratio midsole and an outsole are integrally joined vertically, and At the same time, the left and right side molds of the bottom mold are driven by hydraulic or pneumatic cylinders to perform the mold clamping operation, and the midsole in the softened state and the heat covering the midsole are embossed by the embossed pattern on the wall of the side mold. A method for producing a foamed shoe, comprising forming an embossed pattern in a plastic decorative layer and subsequently, after a step of cooling and compacting the mold, opening the mold to obtain a foamed shoe product. 7. The method according to claim 6, wherein the decorative layer is a thin frame-shaped decorative piece made of a thermoplastic material having a special contour shape and color change. 8. The method for producing a foamed shoe according to claim 6, wherein the front contact and the heel contact of the outsole are pressurized by pressurizing means to make close contact with the front and rear end portions of the upper. 9. A method of manufacturing a foamed shoe, wherein one bottom is connected to the bottom of the upper of the shoe, and the upper is covered with a last of a shoe pusher, and then a pair of left and right waves is formed on the bottom. The clamp-type mold with a curved surface is fixed at a position sandwiching the periphery of the upper so that it faces each other, the adhesive is precisely applied to the bottom end of the upper and the exposed part of the bottom, and the outsole is placed on one bottom mold Put hot melt adhesive on the top of the outsole, and between the last and bottom of the shoe press,
The hydraulic and pneumatic cylinders are driven to perform up-and-down pressing operation, and the upper, softened, equal ratio midsole and outsole are integrally press-bonded up and down, and at the same time, placed on the left and right sides of the bottom mold In addition to the embossed pattern provided on the wall surface, a wave-shaped curved surface corresponding to the bottom surface of the clamp type mold is formed on the upper surface, the side mold is driven by a hydraulic or pneumatic cylinder to perform the mold clamping operation. The curved surface of the clamp-type bottom and the corresponding curved surface of the upper side of the side mold are jointly sandwiched between the sides of the periphery of the softened midsole, so that the embossed pattern is accurately formed on the side of the softened midsole. A method for producing foamed shoes, comprising forming, followed by a mold cooling compression molding step, followed by opening the mold and removing the shoe product. 10. The method for manufacturing foam shoes according to claim 9, wherein an instant local embossing operation is performed using a heated embossing means on a portion where the front and rear molds of the midsole meet. 11. A method of bonding a thermoplastic decorative layer around the upper, further sandwiching the upper part of the decorative layer with left and right clamps, and subsequently covering the softened midsole with the decorative layer. The method for producing a foamed shoe according to claim 9, characterized in that: 12. The bottom shape of the clamp type mold is provided in a shape corresponding to the top structure of the bottom type.
A method for producing a foamed shoe according to claim 9.