Combined shoe sole mold

Abstract

The utility model relates to a combined shoe sole mould which comprises a first upper mould, a second upper mould, a lower mould and a base which are sequentially arranged from top to bottom, the lower mould is fixed on the base, the first upper mould and the second upper mould are movably arranged above the lower mould in the vertical direction, a replaceable pattern component is arranged on the lower mould, and the pattern component is arranged on the base. A forming cavity is formed in the bottom of the first upper die, a detachable protruding part is arranged in the forming cavity, an annular cavity is formed by the protruding part and the side wall of the forming cavity, a first pouring gate communicated with the annular cavity is arranged on the first upper die and extends to the protruding part, a through hole is formed in the middle of the second upper die, and a through hole is formed in the middle of the second upper die. And a second pouring gate is arranged at the side end of the second upper mold. According to the combined shoe sole mold, the connection strength of the PU middle sole and the rubber outsole is improved, and the quality of the shoe sole is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of shoe material equipment, in particular to a combined sole mould. Background Art

[0002] At present, when soles are produced, the sole materials such as cast polyurethane elastomer or thermoplastic polyurethane elastomer are generally injected into the sole molding mold by an injection molding machine. After a period of maturation, the mold is opened to produce the soles. At present, most soles are single-layer sole molds. When producing double-layer soles, they are usually produced in layers and then the two layers of soles are pasted together. The soles made of rubber materials have the advantages of high elasticity and good wear resistance, but they are heavy. The soles made of PU materials are light in weight, good in flexibility, and good in moisture resistance. The soles usually include an outsole and an insole. The soles made of rubber outsole and PU materials have the advantages of both. When connecting the rubber outsole and the PU insole, gluing is usually used, but the PU insole is easy to debond, resulting in poor connectivity between the PU insole and the rubber outsole connected by gluing, thereby affecting the quality of the soles. Utility Model Content

[0003] In order to overcome the technical defects of the prior art, the utility model provides a combined sole mold, which improves the connection strength of the PU neutral and the rubber outsole and improves the quality of the sole.

[0004] The technical solution adopted by the utility model is: a combined sole mold, including a first upper mold, a second upper mold, a lower mold and a base which are arranged in sequence from top to bottom, the lower mold is fixed on the base, the first upper mold and the second upper mold are movably installed above the lower mold in the vertical direction, the lower mold is provided with a replaceable pattern component, the bottom of the first upper mold is provided with a molding cavity, a detachable protrusion is provided in the molding cavity, the protrusion and the side wall of the molding cavity form an annular cavity, an annular part is adapted to be arranged in the annular cavity, the bottom surface height of the annular part is not lower than the bottom surface height of the protrusion, and the bottom end of the annular part has a plurality of spaced-apart plug posts; the first upper mold is provided with a first runner connected to the molding cavity, the first runner extends to the protrusion, the middle part of the second upper mold is provided with a through hole, and the side end of the second upper mold is provided with a second runner.

[0005] Preferably, the protrusion and the annular member are mounted on the first upper mold via a magnetic attraction assembly.

[0006] Preferably, a plurality of guide pillars are provided on the top of the lower mold, and the first upper mold and the second upper mold are slidably fitted on the guide pillars.

[0007] Preferably, the first upper die and the second upper die are both provided with a plurality of guide sleeves, and the guide sleeves are slidably fitted on corresponding guide pillars.

[0008] Preferably, a slot is provided in the molding cavity of the lower mold, and a pattern component is inserted and matched in the slot, and the pattern component includes a columnar component inserted in the slot and a pattern provided on the top of the columnar component.

[0009] The beneficial effects of the utility model are as follows: the combined sole mold of the utility model can form the PU midsole on the rubber outsole, and the PU outsole formed by the utility model has a retaining edge surrounding the sole, which can effectively protect the PU midsole, and the PU midsole and the rubber outsole are also plug-connected and engaged through multiple jacks, thereby improving the connection strength of the double-layer sole and improving the quality of the sole. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a new structural schematic diagram of the combined sole mold of the utility model.

[0011] Figure 2 It is a bottom view of the first upper mold of the utility model.

[0012] Figure 3 It is a schematic diagram of the assembly of the pattern component of the utility model.

[0013] Explanation of the reference numerals: 1. first upper mold; 101. protrusion; 102. first runner; 103. ring member; 2. second upper mold; 201. second runner; 202. through hole; 3. lower mold; 301. guide column; 302. slot; 303. columnar member; 304. pattern; 5. guide sleeve. DETAILED DESCRIPTION

[0014] The utility model is further described below in conjunction with the accompanying drawings:

[0015] like Figure 1-Figure 3 As shown, this embodiment provides a combined sole mold, including a first upper mold 1, a second upper mold 2, a lower mold 3 and a base (not shown in the figure) arranged in sequence from top to bottom, the lower mold 3 is fixed on the base, the first upper mold 1 and the second upper mold 2 are movably installed above the lower mold 3 in the vertical direction, and a replaceable pattern component 304 is provided on the lower mold 3. The bottom of the first upper mold 1 is provided with a molding cavity, and a detachable protrusion 101 is provided in the molding cavity. The protrusion 101 and the side wall of the molding cavity form an annular cavity. The first upper mold 1 is provided with a first runner 102 connected to the molding cavity, and the first runner 102 extends to the protrusion 101. The middle part of the second upper mold 2 is provided with a through hole 202, and the side end of the second upper mold 2 is provided with a second runner 201. The combined sole mold of the utility model can form a double-layer sole that is firmly combined.

[0016] In this embodiment, the outer edge of the protrusion 101 is provided with a replaceable annular member 103, and the annular member 103 is adapted to be arranged in the annular cavity. The bottom surface height of the annular member 103 is not lower than the bottom surface height of the protrusion 101, and the bottom end of the annular member 103 has a plurality of spaced plug posts (not shown in the figure). By replacing the protrusions and the annular member 103 of different thicknesses, annular grooves of different heights and a plurality of plug holes located on the bottom wall of the annular groove can be formed on the outer edge of the rubber outsole, thereby setting a PU midsole with a visible surface of different thicknesses and the PU midsole and the rubber outsole can be plugged and engaged through a plurality of plug holes. Preferably, the protrusion 101 and the annular member 103 are installed on the first upper mold 1 through a magnetic suction component.

[0017] In this embodiment, a plurality of guide posts 301 are provided on the top of the lower mold 3, and the first upper mold 1 and the second upper mold 2 are slidably fitted on the guide posts 301. A plurality of guide sleeves 5 are provided on the first upper mold 1 and the second upper mold 2, and the guide sleeves 5 are slidably fitted on the corresponding guide posts 301. The user can drive the first upper mold 1 and the second upper mold 2 by installing a driving component such as a cylinder. This is a conventional technology in the field and will not be repeated here.

[0018] In this embodiment, a slot 302 is provided in the molding cavity of the lower mold 3, and a pattern component 304 is inserted into the slot 302. The pattern component 304 includes a columnar member 303 inserted in the slot 302 and a pattern 304 provided on the top of the columnar member 303. Different patterns 304 can be formed on the rubber outsole by replacing the columnar member 303 with different patterns 304.

[0019] When the combined sole mold of this embodiment is in use, the protrusion 101 and the annular part 103 are assembled, the rubber raw material is put into the cavity of the lower mold 3, the first upper mold 1 and the second upper mold 2 are covered, and a rubber outsole with annular grooves and jacks is formed in the mold by hot pressing. Then the mold is opened, the protrusion 101 and the annular part 103 are removed, and the mold is closed again. PU raw material is injected into the mold through the first runner 102, and the PU insole is directly molded on the rubber outsole to improve the connection strength of the double-layer sole.

[0020] The above shows and describes the basic principles and main features of the invention and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the utility model. Without departing from the spirit and scope of the invention, the utility model may have various changes and improvements, which shall fall within the scope of the utility model to be protected. The scope of protection of the utility model shall be defined by the attached claims and their equivalents.

Claims

1. Combined sole mold, characterized by: It includes a first upper mold, a second upper mold, a lower mold and a base which are arranged in sequence from top to bottom, the lower mold is fixed on the base, the first upper mold and the second upper mold are movably installed above the lower mold in the vertical direction, the molding cavity of the lower mold is provided with a replaceable pattern component, the bottom of the first upper mold is provided with a molding cavity, a detachable protrusion is provided in the molding cavity, the protrusion and the side wall of the molding cavity form an annular cavity, an annular part is adapted to be arranged in the annular cavity, the bottom surface height of the annular part is not lower than the bottom surface height of the protrusion, and the bottom end of the annular part has a plurality of spaced-apart plug posts; the first upper mold is provided with a first runner connected to the molding cavity, the first runner extends to the protrusion, the middle part of the second upper mold is provided with a through hole, and the side end of the second upper mold is provided with a second runner.

2. The combined sole mold according to claim 1, characterized in that: The protrusion and the annular member are mounted on the first upper mold via a magnetic attraction assembly.

3. The combined sole mold according to claim 1, characterized in that: A plurality of guide pillars are arranged on the top of the lower mold, and the first upper mold and the second upper mold are slidably fitted on the guide pillars.

4. The combined sole mold according to claim 3, characterized in that: The first upper mold and the second upper mold are both provided with a plurality of guide sleeves, and the guide sleeves are slidably fitted on the corresponding guide pillars.

5. The combined sole mold according to claim 1, characterized in that: A slot is arranged in the molding cavity of the lower mold, and a pattern component is inserted and matched in the slot. The pattern component comprises a columnar component inserted in the slot and a pattern arranged on the top of the columnar component.

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