CN113459439A

CN113459439A - Sole casting mold with rapid demolding function

Info

Publication number: CN113459439A
Application number: CN202110765483.4A
Authority: CN
Inventors: 王森南
Original assignee: Fujian Lichang Intelligent Technology Co ltd
Current assignee: Fujian Lichang Intelligent Technology Co ltd
Priority date: 2021-07-06
Filing date: 2021-07-06
Publication date: 2021-10-01

Abstract

The invention relates to the technical field of shoe molds, in particular to a sole casting mold with a rapid demolding function, which comprises an upper mold, a lower mold, an inner core, a mixing cavity, a water inlet pipe and a gas storage cylinder, wherein steam is mixed with pressurized air to impact a gap between a sole and an injection molding cavity.

Description

Sole casting mold with rapid demolding function

Technical Field

The invention relates to the technical field of shoe molds, in particular to a sole casting mold with a rapid demolding function.

Background

The sole has a rather complicated structure, and in a broad sense, the sole can comprise all materials of the bottom, such as an outsole, a midsole, a heel and the like; in a narrow sense, only the outsole is referred to, and the common characteristics of the general sole materials should have the characteristics of wear resistance, water resistance, oil resistance, heat resistance, pressure resistance, impact resistance, good elasticity, easy adaptation to the foot shape, difficult deformation after shaping, heat preservation, easy moisture absorption and the like, and simultaneously should be matched with the midsole to have the brake function of preventing slipping and easy stopping when the foot is changed during walking. The sole materials are of various types and can be divided into natural bottom materials and synthetic bottom materials, wherein the natural bottom materials comprise natural bottom leather, bamboo, wood and the like, and the synthetic bottom materials comprise rubber, plastics, rubber and plastic combined materials, regenerated leather, elastic hardboard and the like.

The injection molding is a common sole processing mode, and the required sole can be obtained by injecting the melted high polymer raw material into a shoe mold and then further crosslinking and vulcanizing; because polymer raw materials are comparatively very thick and the cohesiveness is extremely strong, can adhere in the one side that is equipped with interior benevolence usually when opening shoe mold back sole, though can brush in the intracavity in advance and draw the sole still comparatively hard thing, common way is that the workman uses instruments such as pliers to pull the sole from the mould down, but cause sole surface impaired and artifical the sole of pulling comparatively hard like this easily, in-process shoe mold has high temperature and leads to the workman to scald very easily, need improve in order to solve above-mentioned problem to current shoe mold.

Disclosure of Invention

The invention aims to provide a sole casting mold with a rapid demolding function, so as to solve the problems in the background technology.

The mixing cavity is positioned in the upper die, the bottom of the mixing cavity is provided with a pore communicated with the injection molding cavity, the water inlet pipe is arranged on the upper die, the gas storage cylinder is arranged on the upper die, a one-way valve is arranged at the gas inlet of the gas storage cylinder, and a pressure measuring device and a gas inlet electromagnetic valve are arranged on a pipeline communicated with the mixing cavity.

Preferably, the mold opening device adopts a cylinder in specific implementation, and a fixed end and an extending end of the cylinder are respectively and fixedly connected with the upper mold and the lower mold.

Preferably, one side of the inner core, which is close to the upper die, is provided with a sealing rubber sheet.

Preferably, the top of the upper die is provided with an electric telescopic rod, the electric telescopic rod is fixedly installed on the upper die, and the movable end of the electric telescopic rod penetrates through the upper die moving pair and is connected with the inner core.

Preferably, the mixing chamber is located directly above the inner core.

Preferably, the surface of the injection molding cavity and the surface of the inner core are both provided with polytetrafluoroethylene coatings.

From the above description of the structure of the present invention, compared with the prior art, the present invention has the following advantages:

according to the sole casting mold with the rapid demolding function, raw materials are injected into an injection molding cavity, and the raw materials are further heated, crosslinked and vulcanized to form a required sole; when the sole needs to be taken out, the air inlet device fills air into the air storage cylinder to reach a preset pressure intensity and then stops, the liquid inlet electromagnetic valve on the water inlet pipe is opened to inject quantitative water into the mixing cavity, and at the moment, the sealing rubber sheet props against the fine hole of the mixing cavity, so that the water cannot flow into the injection molding cavity; the solenoid valve that admits air when electric telescopic handle expansion end downwardly extending afterwards opens, the pressurized gas gets into the mixed intracavity mixed water and gets into the clearance of moulding plastics chamber and sole, because vulcanization in-process shoe mold temperature is higher, water will vaporize rapidly and form vapor, the mixed pressurized gas of vapor that the volume increases rapidly will strike the sole and the position of moulding plastics the chamber adhesion, thereby peel off sole and the chamber of moulding plastics uniformly, the last mold opening device that restarts will go up mould and lower mould separation, vapor and pressurized gas get into and will volatilize rapidly in the air, remain the remaining vapor in the chamber of moulding plastics and also will evaporate rapidly under the high temperature of shoe mold, can not mould plastics to next sole and cause the interference, vapor evaporation can also reduce the shoe mold temperature simultaneously, avoid the workman to take away and be scalded by the shoe mold when taking the sole away.

The sole and the injection molding cavity can be uniformly and completely peeled off due to the disorder and the diversity of the gas, the sole cannot be damaged like manual sole taking, the water vapor can be quickly dissipated and disappeared after the sole is taken off, the continuous operation cannot be influenced, the dependence of the traditional sole taking on the demolding oil can be eliminated, the sole has practical significance and popularization value, and good economic benefit can be expected.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:

FIG. 1 is a schematic cross-sectional configuration of the present invention;

FIG. 2 is a schematic view of the structure of part A;

in the figure: the device comprises an upper die 1, a die opening device 11, an injection molding cavity 12, an electric telescopic rod 13, a lower die 2, an inner core 3, a sealing rubber sheet 31, a mixing cavity 4, a water inlet pipe 5, a liquid inlet electromagnetic valve 51, a gas storage bottle 6, a one-way valve 61, a pressure measuring device 62 and an air inlet electromagnetic valve 63.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Examples

Referring to fig. 1-2, a shoe sole casting mold with a rapid demolding function comprises an upper mold 1, a lower mold 2, an inner core 3, a mixing cavity 4, a water inlet pipe 5 and a gas storage bottle 6, wherein the upper mold 1 and the lower mold 2 are connected through a mold opening device 11, the mold opening device 11 adopts a cylinder in specific implementation, a fixed end and an extending end of the cylinder are respectively and fixedly connected with the upper mold 1 and the lower mold 2, the upper mold 1 and the lower mold 2 are respectively provided with a recess and are combined to form an injection molding cavity 12, the inner core 3 is positioned in the injection molding cavity 12 and is movably arranged on the upper mold 1, one side of the inner core 3 close to the upper mold 1 is provided with a sealing rubber sheet 31, the top of the upper mold 1 is provided with an electric telescopic rod 13, the electric telescopic rod 13 is fixedly arranged on the upper mold 1, the movable end of the electric telescopic rod 13 penetrates through a moving pair of the upper mold 1 and is connected with the inner core 3, the mixing cavity 4 is positioned in the upper mold 1 and is provided with a pore communicated with the injection molding cavity 12, the mixing chamber 4 is located right above the inner core 3, the water inlet pipe 5 is provided with a liquid inlet electromagnetic valve 51, the water inlet pipe 5 is installed on the upper die 1 and communicated with the mixing chamber 4, the gas storage cylinder 6 is installed on the upper die 1, the gas inlet of the gas storage cylinder 6 is provided with a one-way valve 61, and a pressure measuring device 62 and a gas inlet electromagnetic valve 63 are arranged on a pipeline of the gas storage cylinder 6 communicated with the mixing chamber 4.

The surface of the injection molding cavity 12 and the surface of the inner core 3 are both provided with polytetrafluoroethylene coatings, the polytetrafluoroethylene has good high temperature resistance and chemical corrosion resistance, the surface friction coefficient is extremely low, other substances are not easy to adhere to the polytetrafluoroethylene, and the polytetrafluoroethylene coatings are arranged to promote the separation of the sole and the injection molding cavity 12.

The upper mold 1 and the lower mold 2 forming the shoe mold are common mold structures, and the structures thereof are known to those skilled in the art, so the structures of the injection molding opening, the sealing ring and the like on the shoe mold are not explained.

The pressure measuring device 62 is a device for measuring the air pressure of the gas cylinder 6, which belongs to the prior art and is known to those skilled in the art, and therefore, the detailed structure and operation thereof will not be further described.

The air inlet of the air storage bottle 6 is connected with an air pump, and the water inlet end of the water inlet pipe 5 is connected with a water pipe or water inlet equipment.

The control mode of the invention is realized by an external controller, the control circuit of the controller can be realized by simple programming of technicians in the field, the supply of the power supply also belongs to the common knowledge in the field, and the invention is mainly used for protecting mechanical devices, so the control mode and the circuit connection are not explained in detail in the invention.

The working principle of the invention is as follows: injecting the raw materials into the injection molding cavity 12, and further crosslinking and vulcanizing by heating to form the required sole; when the sole needs to be taken out, the air inlet device fills air into the air storage cylinder 6 to reach a preset pressure and stops, the liquid inlet electromagnetic valve 51 on the water inlet pipe 5 is opened to inject quantitative water into the mixing cavity 4, at the moment, the sealing rubber sheet 31 props against the fine hole of the mixing cavity 4, and the water cannot flow into the injection molding cavity 12; then the electromagnetic valve 63 that admits air opens when electric telescopic handle 13 expansion end downwardly extending, pressurized gas gets into the mixed water in mixing chamber 4 and gets into the clearance of moulding plastics chamber 12 and sole, because the shoe mold temperature is higher among the vulcanization process, water will vaporize rapidly and form vapor, the mixed pressurized gas of vapor that the volume increases rapidly will strike the sole and the position of moulding plastics chamber 12 adhesion, thereby peel off sole and moulding plastics chamber 12 evenly, it will go up mould 1 and lower mould 2 separation to restart mold opening device 11 at last, vapor and pressurized gas will volatilize rapidly in getting into the air, the residual steam that remains in moulding plastics chamber 12 will also evaporate rapidly under the high temperature of shoe mold, can not mould plastics to the sole of next time and cause the interference, steam evaporation can also reduce the shoe mold temperature simultaneously, avoid the workman to take away to be scalded by the shoe mold when the sole.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a sole casting mould that possesses quick drawing of patterns function, includes mould (1) and lower mould (2), its characterized in that:

the upper die (1) and the lower die (2) are connected through a die opening device (11), and both the upper die (1) and the lower die (2) are provided with recesses which are combined to form an injection molding cavity (12);

also comprises an inner core (3), a mixing cavity (4), a water inlet pipe (5) and a gas storage bottle (6);

the inner core (3) is positioned in the injection molding cavity (12) and movably arranged on the upper mold (1);

the mixing cavity (4) is positioned in the upper die (1), and the bottom of the mixing cavity (4) is provided with a fine hole communicated with the injection molding cavity (12);

a liquid inlet electromagnetic valve (51) is arranged on the water inlet pipe (5), and the water inlet pipe (5) is arranged on the upper die (1) and communicated with the mixing cavity (4);

the gas storage bottle (6) is arranged on the upper die (1), a one-way valve (61) is arranged at the gas inlet of the gas storage bottle (6), and a pressure measuring device (62) and an air inlet electromagnetic valve (63) are arranged on a pipeline which is communicated with the mixing cavity (4) of the gas storage bottle (6).

2. The shoe sole casting mold with rapid demolding function as claimed in claim 1, wherein: the die sinking device (11) adopts a cylinder in specific implementation, and a fixed end and an extending end of the cylinder are respectively and fixedly connected with the upper die (1) and the lower die (2).

3. The shoe sole casting mold with rapid demolding function as claimed in claim 1, wherein: and a sealing rubber sheet (31) is arranged on one side of the inner core (3) close to the upper die (1).

4. The shoe sole casting mold with rapid demolding function as claimed in claim 1, wherein: go up mould (1) top and be provided with electric telescopic handle (13), electric telescopic handle (13) fixed mounting is in last mould (1), and electric telescopic handle (13) expansion end runs through last mould (1) sliding pair and expansion end and interior benevolence (3) link to each other.

5. The shoe sole casting mold with rapid demolding function as claimed in claim 1, wherein: the mixing cavity (4) is positioned right above the inner core (3).

6. The shoe sole casting mold with rapid demolding function as claimed in claim 1, wherein: and polytetrafluoroethylene coatings are arranged on the surface of the injection molding cavity (12) and the surface of the inner core (3).