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CN-224210429-U - Rubber mold with single pouring gate

CN224210429UCN 224210429 UCN224210429 UCN 224210429UCN-224210429-U

Abstract

The utility model provides a rubber mold with a single gate, which comprises an upper mold plate, an upper mold, a boot core mold and a lower mold, wherein a cavity is formed in the upper mold plate in a penetrating manner up and down, the boot core mold is arranged in the cavity, the lower mold is arranged at the lower side of the upper mold, a forming cavity for forming a rubber boot is formed between the upper mold, the boot core mold and the lower mold, a runner is arranged in the middle of the upper mold, the runner is positioned at the side edge of the forming cavity and is used for communicating with the forming cavity, when the lower mold and the upper mold are clamped, rubber material enters the forming cavity through the runner to form the rubber boot with a boot body and a boot bottom, when the lower mold and the upper mold are clamped, the rubber material enters the forming cavity through the runner and is extruded into the forming cavity of the upper mold and the forming cavity of the lower mold, and the rubber boot is formed through vulcanization. The rubber mold with the single gate has the advantages of less working procedures for producing rubber boots, low technical requirements on labor force, less requirement on people, low comprehensive cost and higher productivity.

Inventors

  • HU LIANYU

Assignees

  • 东莞市春祥橡塑制品有限公司

Dates

Publication Date
20260508
Application Date
20250718

Claims (12)

  1. 1. A rubber mold with a single gate is characterized by comprising an upper mold plate, an upper mold, a boot core mold and a lower mold, wherein a cavity is formed in the upper mold plate in a penetrating mode up and down, the boot core mold is arranged in the cavity, the lower mold is arranged on the lower side of the upper mold, a forming cavity for forming rubber boots is formed between the upper mold, the boot core mold and the lower mold, a runner is arranged in the middle of the upper mold and is positioned on the side edge of the forming cavity, the runner is used for being communicated with the forming cavity, and when the lower mold and the upper mold are clamped, rubber enters the forming cavity through the runner to form the rubber boots with boot bodies and boot bottoms.
  2. 2. The single gate rubber mold of claim 1, wherein the runner is used for communicating with a molding cavity inlet on the side edge of the upper mold, and when the lower mold and the upper mold are closed, the rubber material enters the molding cavity from the runner, is extruded into the molding cavity on the periphery of the upper mold, and is formed into a sole from top to bottom.
  3. 3. The single gate rubber mold of claim 1 wherein said runner is adapted to communicate with a molding cavity entrance in a side edge of a lower mold, and when said lower mold is clamped with said upper mold, a compound is introduced into said molding cavity from said runner, extruded into said molding cavity in a periphery of a shoe core mold, and formed into a sole from bottom to top.
  4. 4. A single gate rubber mold according to claim 1 or 2, wherein at least two sets of the shoe mold are located in the cavity, and the runner is located between the molding cavities formed by the two sets of shoe mold.
  5. 5. The single gate rubber mold of claim 4, wherein the mating surfaces of the upper and lower molds are located at the junction of the boot body and sole of the lower mold.
  6. 6. The single gate rubber mold of claim 4 wherein at least one set of evacuation channels in said mold is configured to be activated by the passage of rubber material into the molding cavity to draw air in the middle of the mold.
  7. 7. The single gate rubber mold of claim 4 wherein at least two sets of blow channels are provided within the boot core mold, the blow channels being configured to be activated upon removal of the boot, and to blow the boot off by gas after mold opening.
  8. 8. The single gate rubber mold of claim 7, wherein the blow channel comprises a blow inlet disposed in the cope match-plate pattern in communication with the injection molding apparatus from which source gas is provided.
  9. 9. The single gate rubber mold of claim 8 wherein the blow channel further comprises a blow valve, the blow valve being blown after the gas enters the blow channel to blow off the rubber boot.
  10. 10. The single gate rubber mold of claim 9, wherein the blow valve comprises a half sole blow valve, a heel blow valve, and an inlet blow valve, the half sole blow valve being disposed in front of the lower mold, the heel blow valve being disposed in rear of the lower mold, and the inlet blow valve being disposed in an upper portion of the boot core mold.
  11. 11. The single gate rubber mold of claim 1, further comprising a middle plate disposed between the upper and lower molds, the middle plate and the lower mold forming an extrusion cavity.
  12. 12. The single gate rubber mold of claim 11 wherein said extrusion chamber is advanced with rubber material, said rubber material enters said molding chamber from said runner when said lower mold, said middle plate and said upper mold are closed, is extruded into said molding chamber around said boot core mold to form a boot body, and said rubber material entering said extrusion chamber is extruded to form a boot sole.

Description

Rubber mold with single pouring gate Technical Field The utility model relates to the technical field of rubber molds with single pouring gates, in particular to a rubber mold with single pouring gate. Background Rubber boots, which are shoes with uppers that are slightly tubular and are raised above the ankle bones, are generally composed of a boot body, a boot sole and a lining. At present, the traditional rubber boots are manufactured in a labor-intensive production mode, and on a simple production line, workers manually paste all parts of rubber sheets, liners, soles and the like on the rubber boots on shoe trees to finally form a rubber boot, and then vulcanize the rubber boot by a vulcanizing tank to form the final product. The application discloses an integrated combined rubber boot mold and a production method thereof, and relates to the technical field of molds. The upper core mould is provided with a cavity in a penetrating mode up and down, the upper core mould is arranged at the top in the cavity, the lower core mould can be arranged at the bottom in the cavity in a vertically movable mode, the lower mould can be arranged at the lower side of the upper mould in a vertically movable mode, a forming cavity for forming a boot body is formed among the upper mould, the upper core mould, the lower core mould and the lower mould, and a runner for communicating the forming cavity is formed on the upper core mould. The production method of the die comprises a feeding step, a die clamping step, an injection molding step, a vulcanization step and a demolding step. The die can eliminate the defects of the outer side of the boot body such as a die line, flash and the like, so that the outer side of the boot body is more attractive, and the sales grade is improved. The production method of the die has the advantages of few working procedures, high product forming quality, less labor force demand, safety, environmental protection and low comprehensive cost. The existing rubber boot production mould still has the defects that 1, the added annular cavity enables the upper edge of the inner side of the boot body to form flash uniformly, the effect of no flash cannot be directly achieved, the glue stock is wasted due to the fact that the structure is designed on the basis of being convenient for eliminating the flash, the glue stock in the annular cavity has defects under the condition of insufficient vacuum degree, the requirement on the mould is high, and the practical cost is not low; 2. In order to simplify the runner structure, the runners are sequentially arranged along the inside of the upper core die, the inside of the lower core die and the lower surface of the lower core die, after injection molding, injection molding waste in the runner of the lower surface of the lower core die is contacted with the lower edge of the inner side of the boot body (namely the boot bottom), and injection molding waste or redundant sizing material formed by stopping injection molding is formed at the boot bottom edge, and although flash is not formed on the outer side of the boot body, the appearance is not attractive, the injection molding rubber boot still needs to be subjected to secondary processing on the outer surface and is not a directly molded product, and the waste or redundant sizing material on the boot bottom needs to be manually matched with a machine to be separated, so that the flow is complicated; Therefore, how to improve the existing rubber shoe production mold to overcome the defects is a technical problem to be solved by the technicians in the field; Disclosure of utility model The utility model aims to solve the problems and the disadvantages and provide a single-gate rubber mold with high production efficiency and low cost. The technical scheme is that the rubber mold with the single pouring gate comprises an upper mold plate, an upper mold, a boot core mold and a lower mold, wherein a cavity is formed in the upper mold plate in a penetrating mode up and down, the boot core mold is arranged in the cavity, the lower mold is arranged on the lower side of the upper mold, a forming cavity for forming rubber boots is formed among the upper mold, the boot core mold and the lower mold, a runner is arranged in the middle of the upper mold, the runner is located on the side edge of the forming cavity and is used for being communicated with the forming cavity, and when the lower mold and the upper mold are clamped, rubber enters the forming cavity through the runner to form the rubber boots with boot bodies and boot bottoms. Further, the runner is used for communicating with an inlet of a forming cavity at the side edge of the upper die, when the lower die and the upper die are combined, sizing material enters the forming cavity from the runner, is extruded to the forming cavity at the periphery of the upper die, and forms a boot sole from top to bottom and then forms a boot body. Further, the runner is used fo