TWI889279B - Shoe lasting and forming apparatus - Google Patents

Abstract

A shoe lasting and forming apparatus mainly includes a first mold, a second mold disposed in opposing relationship to the first mold, a shoe last installed on the second mold, and a positioning unit pivotally disposed on the second mold. An outward rotation of the positioning unit enlarges a working space so that an outsole can be quickly positioned on the positioning unit and a complete shoe can be easily taken out from the mold set, thereby increasing the operating convenience, preventing the displacement or deviation of the outsole, and facilitating an increase in the yield rate of the production and a reduction in production costs.

Description

Pull-to-roll forming equipment

The present invention relates to a forming device, in particular to a stretch forming device.

It is found that the midsole is located between the outsole and the upper, and is mainly used to provide shock absorption, propulsion feedback, and stable support. The midsoles formed by different thicknesses and different material properties can produce shoes with different functional orientations and different wearing feelings. The injection molding process is one of the main technologies currently used to make midsoles. The midsoles produced by it have the advantages of light weight, rich colors, wear resistance, corrosion resistance and low cost, so they are widely used in modern life.

Referring to FIG. 1 and FIG. 2 , the aforementioned injection molding process is mainly performed using a stretch molding device 1, and the stretch molding device 1 includes a first mold 11, a second mold 12 disposed opposite to the first mold 11, at least one injection channel 13 formed in the first mold 11 and the second mold 12, a shoe upper body 14 on which a shoe upper A1 can be mounted, a receiving seat 15 installed in the first mold 11 and on which a shoe outsole A2 can be placed, and a molding groove 16 between the shoe upper body 14 and the receiving seat 15, and the stretch molding device 1 cooperates with an injection molding device 2 to perform injection molding operations on the material M1.

As mentioned above, when the shoe upper forming device 1 is used, firstly, a shoe upper A1 is put on the shoe upper body 14 so that the shoe upper A1 and the shoe upper body 14 are in contact with each other, and at the same time, a shoe outsole A2 is placed in the receiving seat 15, and the first mold 11 is moved downward to close with the second mold 12. Then, the injection molding device 2 directly injects the material M1 into the first mold 11 and the second mold 12 at a certain temperature and pressure. The injection of the material M1 is simply shown in FIG. 1 with a dotted line. , so that the material M1 enters the molding groove 16 through the injection channel 13. Since the molding groove 16 is located between the upper body 14 and the accommodating seat 15, the midsole A3 formed by the material M1 after cooling and solidification can firmly bond the upper A1 and the outsole A2 together to complete the preliminary molding of a finished shoe (not shown in the figure). Then, only the first mold 11 and the second mold 12 need to be opened, and the finished shoe is removed from the upper body 14 for subsequent processing.

However, after actual use, it was found that because the first mold 11 and the second mold 12 are designed to open and close up and down, the operating space between the first mold 11 and the second mold 12 is limited. Not only is it difficult to quickly place the shoe outsole A2 in the receiving seat 15, but also the shoe outsole A2 may be affected by gravity and shift or fall during the displacement of the first mold 11, which not only causes The outsole A2 becomes crooked and uneven after molding, which affects the injection molding effect of the midsole A3, thereby increasing the defective rate of finished products and causing waste of the material M1, resulting in an increase in production costs. Furthermore, it is difficult to quickly remove the finished shoe from the shoe body 14 after molding, which not only leads to low operating efficiency, but also may cause damage to the finished shoe during the removal process, which needs to be improved.

Therefore, the purpose of the present invention is to provide a stretch forming device that can effectively increase the operating space to quickly position the shoe outsole and take out the formed shoes, thereby improving the operating convenience, increasing the operating efficiency and the finished product yield, and reducing the production cost.

Therefore, the pull-up molding device of the present invention is used in conjunction with a shoe upper, a shoe outsole and an injection molding device, so that the injection molding of the material is performed through the injection molding device to combine the shoe upper and the shoe outsole to form a molded shoe. The pull-up molding device includes a mold set with an internal accommodation space, a shoe upper body installed in the accommodation space, a molding groove formed in the accommodation space and located at a corresponding position of the shoe upper body, and at least one injection molding channel formed in the mold set and connected to the molding groove, wherein the mold set has a first mold and a second mold respectively arranged in a corresponding manner, and a A positioning seat is pivotally mounted on the second mold, and a working area is formed on the positioning seat and is arranged toward the molding groove. When the first and second molds are in an open state, the molding groove is located between the shoe upper body and the positioning seat. Therefore, by turning the positioning seat outward to increase the operating space, it is more conducive to quickly placing and positioning the shoe outsole in the working area, and at the same time effectively avoiding the shoe outsole from being skewed, displaced or dropped due to mold closing, and helping to quickly take the finished shoe out of the mold set, which effectively improves the working efficiency, enhances the operating convenience, increases the finished product yield, and reduces the production cost.

The above-mentioned other technical contents, features and effects of the present invention will be clearly understood in the following detailed description of the preferred embodiments with reference to the drawings.

Referring to FIG. 3, FIG. 4 and FIG. 5, a preferred embodiment of the pull-up molding device 3 of the present invention is used in conjunction with a shoe upper B1 and a shoe outsole B2, and is also used in conjunction with an injection molding device 4 to perform an injection molding operation of a material M2 through the injection molding device 4, thereby combining the shoe upper B1 and the shoe outsole B2 with a shoe midsole B3 formed by injecting the material M2 to produce a finished shoe (not shown in the figure). The pull-up molding device 3 includes a mold set 31, a receiving space 32 formed in the mold set 31, and a hinged mold set 31 and located in the receiving space 32. 2, a molding groove 34 formed in the mold set 31 and located at a corresponding position of the shoe upper body 33, and at least one injection channel 35 formed between the injection molding device 4 and the molding groove 34, so that the material M2 injected by the injection molding device 4 enters the molding groove 34 through the injection channel 35, and the shoe upper body 33 is used for the upper B1 to be positioned and set. After the material M2 is injected, the molded shoe can be molded in the mold set 31. In addition, the injection molding device 4 is shown in a simple diagram in FIG. 4, and the state of the injection molding device 4 should not be limited to this.

Referring to FIG. 3 and FIG. 4 , the mold assembly 31 comprises a first mold 311, a second mold 312 disposed opposite to the first mold 311, and a positioning seat 313 pivotally disposed on the second mold 312, and a working area 314 facing the molding groove 34 is formed on the positioning seat 313, and the working area 314 is used for positioning the shoe outsole B2. In addition, in this embodiment, the first mold 311 and the second mold 312 are disposed opposite to each other in the vertical direction. For example, the upper body 33 has an actuating member 331 pivotally mounted on the second mold 312, and a shoe last 332 fixedly mounted on the actuating member 331 and capable of fitting the upper B1. When the first mold 311 and the second mold 312 are separated from each other and in an open state, the shoe last 332 is located between the actuating member 331 and the molding groove 34, and the molding groove 34 is located between the shoe last 332 and the working area 314.

Referring to FIG. 3, FIG. 4 and FIG. 5, when the shoe upper forming device 3 is used, the upper B1 is firstly placed on the shoe last 332 of the shoe upper body 33. At this time, the actuating member 331 of the shoe upper body 33 is pivoted on the second mold 312, so that the shoe upper body 33 can be rotated, that is, the actuating member 331 rotates outward, thereby driving the shoe last 332 to be in a vertical state, as shown in FIG. As shown, the upper B1 can be quickly put on the shoe last 332, and then the upper B1 is tightened to make the upper B1 fit tightly against the shoe last 332. Then, the upper body 33 only needs to be pivoted inward, that is, the actuator 331 is rotated inward to reset, thereby linking the shoe last 332 and the upper B1 to be accommodated and positioned in the second mold 312, thereby completing the positioning operation of the upper B1.

As mentioned above, the positioning seat 313 is pivoted on the second mold 312, so that the positioning seat 313 can also rotate, that is, the positioning seat 313 rotates outward to drive the working area 314 to expand toward the first mold 311, thereby increasing the space during operation, and the shoe outsole B2 can be quickly placed and positioned in the working area 314, and then the positioning seat 313 only needs to be rotated inward, so that the working area 314 and the shoe outsole B2 are turned inward toward the molding groove 34. , so that the outsole B2 can be stably fixed at the desired position, and finally the first mold 311 and the second mold 312 are tightly covered with each other and in a closed state, and then the molten material M2 is injected into the mold set 31 through the injection molding device 4 at a set temperature and pressure. In this embodiment, the injection of the material M2 is simply shown by a dotted line in FIG. 5, and the shape of the material M2 is not limited, but the molten shape is used as an example for explanation. Then the material M2 enters the molding groove 34 through the injection molding channel 35 and evenly fills the molding groove 34. The molding groove 34 is formed, and after cooling, the midsole B3 is formed, and the midsole B3 bonds the upper B1 and the outsole B2 to form the finished shoe. Finally, the first mold 311 and the second mold 312 are separated from each other and opened, and the positioning seat 313 and the shoe body 33 are turned outward respectively, so that the finished shoe can be quickly taken out, so as to perform subsequent processing operations on the finished shoe. Therefore, the rotation of the positioning seat 313 can greatly increase the operating space, so that The positioning operation of the outsole B2 is faster and more convenient, and the operation convenience and operation efficiency are improved. At the same time, the outsole B2 is effectively prevented from being skewed or shifted due to the action of the first mold 311 and the second mold 312, so that the outsole B2 is flat after molding, which further improves the comfort of wearing and greatly improves the yield of the finished product. At the same time, it can also avoid wasting the material M2. In addition, the finished shoe will not be damaged during the process of taking out the finished shoe, thereby effectively reducing the production cost.

To summarize the above, the stretch forming equipment of the present invention pivots the positioning seat on the second mold so as to increase the operating space through the rotation of the positioning seat, which is more conducive to quickly placing and positioning the shoe outsole in the working area and effectively avoiding the shoe outsole from being skewed or misplaced. At the same time, it is also helpful to quickly take out the finished shoes, thereby increasing the convenience of operation, improving the finished product yield, enhancing the operating efficiency, and significantly reducing the production cost.

However, the above is only to illustrate the preferred embodiment of the present invention, and should not be used to limit the scope of implementation of the present invention. In other words, all simple equivalent changes and modifications made according to the scope of the patent application of the present invention and the content of the invention specification should still fall within the scope of the present invention patent.

(Knowledge) 1: Pull-on molding equipment 11: First mold 12: Second mold 13: Injection channel 14: Shoe body 15: Accommodation seat 16: Molding groove A1: Upper A2: Outsole A3: Midsole M1: Material 2: Injection molding device (The present invention) 3: Pull-on molding equipment 31: Mold set 32: Accommodation space 33: Shoe body 34: Molding groove 35: Injection channel 311: First mold 312: Second mold 313: Positioning seat 314: Working area 331: Actuator 332: Shoe last B1: Upper B2: Outsole B3: Midsole M2: Material 4: Injection molding device

Figure 1 is a schematic diagram of the known pull-together forming equipment. Figure 2 is a schematic diagram of the use of the known pull-together forming equipment. Figure 3 is a schematic diagram of a preferred embodiment of the present invention. Figure 4 is a schematic diagram of a partial component of the preferred embodiment. Figure 5 is a schematic diagram of the use of the preferred embodiment.

3: Pull-to-roll forming equipment

31:Mold set

32: Storage space

33: Shoe upper body

34: Molding groove

35: Injection channel

311: The first mold

312: Second mold

313: Positioning seat

314: Work area

331:Actuating parts

332: Shoe last

B2: Shoe outsole

Claims (2)

A pull-on molding device is provided for a shoe upper and a shoe outsole, and cooperates with an injection molding device to perform injection molding of materials in the pull-on molding device, so that the shoe upper and the shoe outsole are combined to form a molded shoe, and the pull-on molding device includes a mold set, a containing space formed in the mold set, a shoe upper body for the shoe upper to be mounted and arranged in the containing space, a molding groove formed in the mold set and arranged corresponding to the position of the shoe upper body, and at least one injection molding channel arranged between the injection molding device and the molding groove, wherein the molded shoe is molded in the mold set after the material is injected, and the mold set has a first mold and a second mold that can be separated and covered with each other; its characteristics are: The second mold is provided with a positioning seat, and the positioning seat is pivoted on the second mold so that the positioning seat can rotate. At the same time, a working area for positioning the outsole is formed on the positioning seat. The working area is arranged toward the molding groove. When the first and second molds are in an open state, the molding groove is located between the positioning seat and the shoe upper body, so that the outsole can be quickly placed and positioned through the rotation of the positioning seat, and the molded shoe can be easily taken out of the mold set. According to the stretch forming equipment described in claim 1, the upper body has an actuating member pivotally mounted on the second mold, and a shoe last disposed on the actuating member and capable of being mounted on the upper, so that the shoe last can be driven to leave or return to the accommodating space through the rotation of the actuating member.

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