TW201838534A - Manufacturing method of one-piece three-dimensional shoe substrate characterized by solving the problem that the conventional structure is hard to meet the design requirements of the shoe products because the sidewall area can not be increase - Google Patents

Abstract

The manufacturing method of a one-piece three-dimensional shoe substrate comprises the following steps: sleevedly installing an ankle sock on the outside surface of a shoe last; placing said shoe last in the cavity of a mold; integrally injecting or pouring polyurethane material into the mold cavity to form a shoe substrate on the surface of said ankle sock; removing the mold and the shoe last; and trimming the ankle sock. Since the present invention forms the shoe substrate bonded to the surface of the ankle sock by integrally injecting or pouring in the mold, so that the counter of said shoe substrate will be not hard to perform manufacture due to an increase of size. By this way, the shoe substrate can increase or decrease the manufacturing size of the counter according to the design requirement of shoe product, so as to solve the problem that the conventional structure is hard to meet the design requirements of the shoe products because the sidewall area can not be increased.

Description

Method for manufacturing one-piece three-dimensional shoe substrate

The invention relates to a method for manufacturing a one-piece stereoscopic shoe substrate, in particular to a one-piece stereoscopic shoe substrate which is integrally injection molded or infused and can be applied to the footwear industry.

With the rapid development of today's society, the development of various industries and the purpose of manufacturing products are also moving towards automation.

The footwear industry used to be a labor-intensive industry. Among them, due to the complexity and complexity of the manufacturing process of the footwear, the footwear has problems such as too complicated production cycle and difficulty in standardizing the process. In this regard, the manufacturing process of the footwear product will require a large amount of labor, so it is difficult to carry out automated production operations.

The shoe product is a combination of multi-piece pieces. The traditional shoe-making process is to make an upper by cutting, processing, sewing, etc., and then fixing the upper to the machine through a front machine and a rear machine or a vehicle midsole. A shoe last, and finally through the process of heat setting, scribing, wiping, bottoming, pressing, freezing, plucking, and entering the insole, the manufacturing operation of the shoe product will be completed.

However, the manufacturing process of footwear products has changed slightly in recent years. For example, the Chinese Patent Publication No. CN105491905A discloses a shoe product which is formed by hot-pressing a shoe upper using a mold having an upper die and a lower die by using "elastic fabric with foam". Wherein, the elastic fabric and the foam will lose elasticity after being shaped by hot pressing, which will cause the upper to fail to provide a good tread feel of the foot. Furthermore, the elastic fabric is deformed due to the inconsistent material shrinkage rate after being hot-pressed in the upper mold and the lower mold, thereby causing the insole to fail to increase the side wall area and failing to meet the design requirements of the footwear product. .

In view of this, it has become a problem to be solved to manufacture a one-dimensional three-dimensional shoe substrate which can solve the conventional structure because it is difficult to meet the design of the shoe product due to the inability to increase the sidewall area.

The main object of the present invention is to solve the problem that the conventional structure is difficult to meet the design requirements of the shoe product because the side wall area cannot be increased.

In order to achieve the above object, the present invention provides a method for manufacturing a one-piece three-dimensional shoe substrate, which is implemented with a hoe, comprising: step one, sleeve a sock on the outer surface of the hoe; step two, placing the sleeve The hoe having the sock is placed in a cavity of a mold such that a bottom portion of the sock and a heel portion connecting the bottom portion form a shoe substrate forming space with the cavity; and step 3 Emitting or injecting a polyurethane material (PU) into the shoe substrate molding space to form a shoe substrate forming space with a shoe substrate directly bonded to the surface of the leg covering, the shoe substrate comprising only one bonded to the bottom surface a first foot bed and a back cover connected to the first foot bed and bonded to the surface of the heel portion; in step 4, the mold and the hammer are removed and the sock is trimmed.

In one embodiment, the polyurethane material is made of a polyether (Polyether) polyurethane or a polyester (Polyester) polyurethane.

In one embodiment, the bottom of the sock and the surface of the heel have a memory foam.

In one embodiment, the mold includes a pair of first outer molds on a side of the heel portion, a pair of second outer molds on the other side of the heel portion, and a pair of third outer molds on the bottom portion. The cavity is formed on the first outer mold, the second outer mold, and the inner side of the third outer mold.

In an embodiment, the step 2 further comprises a sub-step before the placing the sleeve of the sock, and the third outer mold is separated by a plate to make the plate and the third outer mold A second foot bed forming space is formed to inject or inject a polyurethane material into the second foot bed forming space to form a second foot bed for bonding the bottom surface of the first foot bed.

In addition, the present invention also provides the sock sleeve and the shoe substrate bonded to the surface of the sock using the above-described one-piece stereoscopic shoe substrate manufacturing method.

Herein, the technical content of the present invention can be classified as follows:

1. The shoe substrate is manufactured in a "seamless process" to form a one-dimensional three-dimensional appearance.

2. The polyurethane material can be directly injected or poured into the mold without the occurrence of flash.

3. The surface of the back cover may be provided with a decorative piece, which may be made of artificial leather, leather, cloth or plastic sheet.

4. The shoe substrate is able to fully conform to the size of the foot and the shoe substrate is capable of achieving the goal of standardized manufacturing.

5. The shoe substrate can be designed into different thicknesses, hardnesses or patterns in different parts depending on the functional requirements of the shoe product.

6. When the shoe substrate contains the memory foam, the memory foam can be used to buffer vibration. In addition, the back cover can also enhance the function and comfort of protecting the ankle by the memory foam.

7. The first foot bed can be designed with different stripes, bumps or embossed shapes according to the position of the skin contacting the foot, and the arch portion can also be added.

8. The length or height of the back cover can be made according to the design requirements of the shoe product to make the shape that best suits the actual use state.

9. The hardness of the polyurethane material can be adjusted according to actual needs.

Through the above embodiments, the present invention has the following characteristics as compared with the conventional ones:

According to the present invention, the shoe substrate adhered to the surface of the sock is formed by integrally injecting or injecting into the mold, so that the back cover of the shoe substrate is not difficult to be manufactured due to an increase in size, whereby the shoe substrate is The manufacturing size of the back cover can be increased or reduced according to the design requirements of the footwear, so as to solve the problem that the conventional structure is difficult to meet the design requirements of the shoe product because the sidewall area cannot be increased.

Referring to FIG. 1 to FIG. 7 , the present invention provides a method for manufacturing a one-piece three-dimensional shoe substrate, which is implemented with a boring head 3 and includes:

Step one 91: arranging a sock cover 1 on the outer surface of the shoe last 3;

Step two 92: placing the hoe 3 of the sock 1 in a cavity 40 of a mold 4, so that a bottom portion 11 of the sock 1 and two heel portions 12 connecting the bottom portion 11 and the mold Forming a shoe substrate forming space 5 between the holes 40;

Step three 93: injecting or pouring a polyurethane material (PU) into the shoe substrate molding space 5 to form the shoe substrate forming space 5 with a shoe substrate 2 directly bonded to the surface of the sock 1 The shoe substrate 2 includes only a first foot bed 21 adhered to the surface of the bottom portion 11 and a back cover 22 connected to the first foot bed 21 and bonded to the surface of the heel portion 12;

Step four 94: The mold 4 and the hoe 3 are removed and the sock 1 is trimmed.

Here, the present invention will explain step 91, step 2, step 3 93, and step 94 in more detail. During the execution of the step 91, as shown in FIG. 1 to FIG. 3, the sock 1 is first sleeved on the surface of the hoe 3 so that the hosiery 1 is supported by the hoe 3 and is closely attached thereto. The surface of the skull 3 forms a shape similar to the foot. The sock 1 has the bottom portion 11 and the heel portion 12 connected to the bottom portion 11, as shown in FIGS. 2 and 3. Then, during the execution of the step 2 92, as shown in FIG. 1 and FIG. 4, the boring head 3 sleeved with the sock 1 is placed in the cavity 40 of the mold 4 to make the bottom portion The shoe substrate forming space 5 is formed between the 11 and the heel portion 12 and the cavity 40. In one embodiment, the mold 4 includes a pair of first outer molds 41 on one side of the heel portion 12 and a pair of second outer molds 42 on the other side of the heel portion 12, the mold holes 40 are formed. The first outer mold 41 and the second outer mold 42 are inside, and the first outer mold 41 and the second outer mold 42 can completely cover the outside of the sock sleeve 1 and the hoe 3.

With reference to FIG. 1 and FIG. 4 to FIG. 6 , when the set of the hoe 3 provided with the sock 1 is placed in the cavity 40 and the step 3 93 is continued, the injection is integrated (injection). Or pouring a polyurethane material (PU, such as polyether [polyether] polyurethane or polyester [Polyester] polyurethane, etc.) into the cavity 40 of the mold 4 to make the shoe substrate molding space 5 The shoe substrate 2 directly bonded to the surface of the sock 1 is formed. In detail, the shoe substrate 2 has the first foot bed 21 adhered to the surface of the bottom portion 11 and the back cover 22 adhered to the surface of the heel portion 12. Specifically, the sock 1 may be covered with a protective film (for example, a film made of a thermoplastic polyurethane polymer [TPU]) on the outer surface to prevent the polyurethane material from penetrating into the sock 1.

Next, during the execution of the step four 94, the mold 4 and the hoe 3 are removed, and the sock 1 is trimmed to complete the manufacturing operation of the sock 1 and the shoe substrate 2. The sock 1 is trimmed according to the shape of the shoe substrate 2 such that the shape of the sock 1 is substantially equivalent to the shoe substrate 2. After completing the manufacturing operation of the sock 1 and the shoe substrate 2, a shoe sole 61 (shown by a broken line in FIG. 7) is coupled to the bottom surface of the first foot bed 21, a toe cap 62 (vamp) (shown in phantom in FIG. 7) is engaged at the edge of the first foot bed 21 and the edge of the back cover 22, thereby completing a shoe product (eg, running shoes, basketball shoes, soccer shoes, tennis shoes or casual shoes, etc.) The manufacturing operation is as shown in Fig. 6. Specifically, the shoe substrate 2 is formed with a groove on the side of the first foot bed 21 for the toe cap 62 to be engaged. Here, it should be noted that, since the present invention is formed by the injection or infusion of the mold 4 to the shoe substrate 2 adhered to the surface of the sock 1, the back cover 22 of the shoe substrate 2 is not made. Because the size is increased, it is difficult to manufacture, so that the shoe substrate 2 can increase or decrease the manufacturing size of the back cover 22 according to the design requirements of the shoe product, thereby solving the conventional structure because the side wall area cannot be increased. It is difficult to match the design requirements of footwear products.

It is clear from the above technical contents how the sock cover 1 and the shoe substrate 2 adhered to the surface of the sock 1 are applied to the manufacturing work of the article. In this embodiment, in order to further improve the stepping comfort of the footwear, in an embodiment, as shown in FIG. 8, the sock 1 is attached to the bottom 11 and the heel portion 12 with a memory foam during the manufacturing process. 71 (Memory Foam), the shoe substrate 2 is capable of covering the bottom portion 11 and the memory foam 71 of the surface of the heel portion 12 to the bottom portion 11 and the first portion when being formed in the cavity 40 One foot bed 21 between. Wherein, the memory foam 71 may be covered with a protective film (for example, a film made of a thermoplastic polyurethane polymer [TPU]) on the outer surface to prevent the polyurethane material from penetrating into the sock 1 . In addition, in view of the fact that the sole 61 is directly joined to the bottom surface of the first foot bed 21, the bottom surface of the article may be too soft. In an embodiment, as shown in FIG. 9 to FIG. 12, the mold 4 has a pair. A third outer mold 43 located at the bottom portion 11 is formed inside the first outer mold 41, the second outer mold 42, and the third outer mold 43. In this embodiment, the second step 92 further includes a sub-step 921 before the placement of the boring head 3, and the third outer mold 43 is separated by a plate (not shown) to make the plate A second foot molding space is formed between the third outer molds 43 to project or inject a polyurethane material into the second foot bed molding space to form a second foot bed 72. Accordingly, the shoe substrate 2 is formed on The second foot bed 72 is adhered to the bottom surface of the first foot bed 21 to increase the comfort of the article, and the second foot bed 72 is used to meet the design requirements of different functional footwear products. . Furthermore, the second foot bed 72 can also be disposed on the bottom surface of the first foot bed 21 by means of embedded or externally applied.

In addition, the second step 92 may further include a sub-step 922 of providing the two decorative pieces 73 to the first outer mold 41 and the inner wall of the second outer mold 42 so that the two decorative pieces 73 are located in the shoe substrate molding space 5 . Outside. Therefore, after the shoe substrate 2 is injection molded into the cavity 40, the two decorative pieces 73 can be adhered to the opposite outer surfaces of the rear cover 22, and the second decorative piece 73 can be used to reduce the shoe substrate 2. Subsequent processing operations. In other embodiments, the shoe substrate 2 can be attached to the surface of the back cover 22 by a post-sticking method, so that the long piece is covered by the back cover 22 One side surface is continuously covered to the other side surface. Specifically, the two-piece piece 73 or the long-length piece is made of artificial leather, leather, cloth or plastic sheet (for example, thermoplastic rubber [TPR] or thermoplastic polyurethane polymer [TPU], etc.). Furthermore, the two-piece piece 73 or the elongated piece can also be disposed on the surface of the back cover 22 by means of embedded or externally.

Finally, it is worth mentioning that after the hoe 3 is removed from the sock 1 , the sock 1 can only trim the edge without trimming the same shape as the shoe substrate 2 for the sock 1 and the bonding The shoe substrate 2 on the surface of the sock 1 is directly used as an article of footwear to streamline the manufacturing process of the article.

The present invention has been described in detail above, but the foregoing is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Variations and modifications are still within the scope of the patents of the present invention.

1‧‧‧ sock

11‧‧‧ bottom

12‧‧‧Heel

2‧‧‧Shoe substrate

21‧‧‧First foot bed

22‧‧‧ After cover

3‧‧‧ Shantou

4‧‧‧Mold

40‧‧‧ cavity

41‧‧‧First outer mould

42‧‧‧Second outer mould

43‧‧‧The third outer mold

5‧‧‧Shoe substrate molding space

61‧‧‧ soles

62‧‧‧toe

71‧‧‧Memory foam

72‧‧‧Second foot bed

73‧‧‧

91‧‧‧Step 1

92‧‧‧Step 2

921, 922‧‧ substeps

93‧‧‧Step three

94‧‧‧Step four

Figure 1 is a flow chart showing the steps of an embodiment of the present invention. Figure 2 is a side elevational view (I) of the sock and hoe of the present invention. Figure 3 is a side elevational view (2) of the sock and hoe of the present invention. Figure 4 is a diagram (I) of an implementation state of an embodiment of the present invention. FIG. 5 is a diagram (2) of an implementation state of an embodiment of the present invention. Figure 6 is a perspective view of the upper of the shoe of the present invention. Figure 7 is a side elevational view of the article of the present invention. Figure 8 is a reference view of an implementation state of another embodiment of the present invention. Figure 9 is a flow chart showing the steps of still another embodiment of the present invention. Fig. 10 is a view showing an implementation state of still another embodiment of the present invention. Figure 11 is a flow chart showing the steps of still another embodiment of the present invention. Fig. 12 is a view showing an implementation state of still another embodiment of the present invention.

Claims (6)

A method for manufacturing a one-piece three-dimensional shoe substrate, which is implemented with a hammer, comprising: Step 1: arranging a sock on the outer surface of the hoe; Step 2: placing the hoe on the sleeve a mold cavity of a mold, a bottom portion of the sock and a heel portion connecting the bottom portion and a cavity forming a shoe substrate molding space; Step 3: injection or infusion of polyurethane material (PU) Forming a shoe substrate into the shoe substrate forming space to form a shoe substrate directly bonded to the surface of the leg covering, the shoe substrate comprising only a first foot bed adhered to the bottom surface and a a back cover that is joined to the first foot bed and adhered to the surface of the heel; and step four: remove the mold and the hoe and trim the sock. The method for producing a one-piece three-dimensional shoe substrate according to claim 1, wherein the polyurethane material is made of polyether polyurethane or polyester. The method of manufacturing a one-piece three-dimensional shoe substrate according to claim 2, wherein the bottom portion of the sock and the surface of the heel portion have a memory foam. The method of manufacturing a one-piece three-dimensional shoe substrate according to claim 2, wherein the mold comprises a pair of first outer molds on one side of the heel portion and a pair of second outer portions on the other side of the heel portion. And a pair of third outer molds at the bottom, the cavity being formed inside the first outer mold, the second outer mold, and the third outer mold. The method for manufacturing a one-piece three-dimensional shoe substrate according to claim 4, wherein the step 2 further comprises a sub-step before the placing the sleeve of the sock, and the third outer mold is separated by a plate Forming a second foot bed forming space between the plate and the third outer mold, and injecting or injecting a polyurethane material into the second foot bed forming space to form a second for bonding the bottom surface of the first foot bed Foot bed. A sock sleeve made using the method of manufacturing a one-piece three-dimensional shoe substrate according to claim 1, 2, 3, 4 or 5, and the shoe substrate bonded to the surface of the sock.