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CN-224210436-U - Injection mold's drawing die structure for automobile wiring terminal manufacturing

CN224210436UCN 224210436 UCN224210436 UCN 224210436UCN-224210436-U

Abstract

The application discloses a drawing die structure of an injection die for manufacturing an automobile wiring terminal, which relates to the field of injection dies and comprises a movable die and a fixed die which are mutually opened and closed, wherein one side of the surface of the movable die is symmetrically and fixedly connected with a cavity upper die, one side of the surface of the fixed die is symmetrically and fixedly connected with a cavity lower die which can be mutually separated and mutually closed and form a cavity when being closed, a first drawing die assembly for sealing the side edge of the cavity upper die is symmetrically arranged outside the fixed die, a second drawing die assembly for sealing between the two cavity upper dies and reducing flash is arranged outside the movable die and the fixed die, and a core pulling assembly for forming a closed cavity by matching with the first drawing die assembly and the second drawing die assembly is arranged outside the fixed die.

Inventors

  • PENG XUEFAN
  • Zeng tianyang

Assignees

  • 上海雪枫精密机械有限公司

Dates

Publication Date
20260508
Application Date
20250606

Claims (8)

  1. 1. The utility model provides an injection mold's for automobile binding post manufacturing take out mould structure, its characterized in that includes movable mould (1) and cover half (2) of mutually opening and shutting, the surface side symmetry fixedly connected with die cavity upper die (6) of movable mould (1), the surface side symmetry fixedly connected with of cover half (2) and die cavity upper die (6) can separate each other and mutually close and form die cavity lower die (5) of die cavity when closing, the outside symmetry of cover half (2) is provided with and is used for taking out mould subassembly (3) to the sealed first of die cavity upper die (6) side, the outside of movable mould (1) and cover half (2) is provided with and is used for carrying out sealed and reduce second of flash take out mould subassembly (4) on two die cavities upper die (6), the outside of cover half (2) is provided with and is used for forming the loose core subassembly (7) of airtight die cavity with first take out mould subassembly (3) and second and take out mould subassembly (4) cooperation.
  2. 2. The injection mold drawing structure for manufacturing the automobile wiring terminal according to claim 1, wherein the first drawing mold component (3) comprises a side pressing block (31) fixedly connected with one side of the surface of a cavity upper mold (6), a first inclined groove (34) matched with the shape of the first inclined groove (32) is formed in one side of the surface of the side pressing block (31), a first inclined positioning rod (32) is fixedly connected with one side of the surface of the cavity lower mold (5), a first sealing block (33) matched with the shape of the side pressing block (31) is connected with the surface of the cavity lower mold in a sliding mode, and one side of the surface of the first sealing block (33) is provided with a first inclined groove (34) matched with the shape of the first inclined groove (32).
  3. 3. The injection mold drawing structure for manufacturing the automobile wiring terminal according to claim 1, wherein the second drawing mold assembly (4) comprises a middle pressing block (44) fixedly connected with one side of the surface of a cavity upper mold (6), positioning rods II (45) which are inclined are symmetrically and fixedly connected with one side of the surface of the middle pressing block (44), sealing blocks II (42) are symmetrically and slidingly connected with one side, close to each other, of two cavity lower molds (5), and second inclined grooves (43) are respectively formed in one side of the surface of each sealing block II (42).
  4. 4. The drawing structure of the injection mold for manufacturing the automobile wiring terminal according to claim 1, wherein the core pulling assembly (7) comprises two guide holes (77) which are respectively formed in two cavity lower molds (5), cores (73) with matched sizes are slidably connected in the guide holes (77), and mold clamping rods (72) which are in penetrating sliding connection with the cores (73) are fixedly connected to one sides of the surfaces of the two cavity lower molds (5).
  5. 5. The drawing structure of the injection mold for manufacturing the automobile wiring terminal according to claim 2, wherein a first sliding groove (35) is formed in the surface of the fixed mold (2), auxiliary blocks I (36) are symmetrically and fixedly connected to the inner wall of the first sliding groove (35), and the sealing block I (33) is slidably connected between the inner part of the first sliding groove (35) and the two auxiliary blocks I (36).
  6. 6. The injection mold drawing structure for manufacturing the automobile wiring terminal according to claim 3, wherein a second chute (46) for connecting the two cavity lower molds (5) is formed in the surface of the fixed mold (2), two auxiliary blocks (41) are symmetrically and fixedly connected to the inner wall of the second chute (46), and the two sealing blocks (42) are slidably connected between the inside of the second chute (46) and the two auxiliary blocks (41).
  7. 7. The drawing structure of an injection mold for manufacturing an automobile wiring terminal according to claim 4, wherein one side of the surface of each core (73) is fixedly connected with a moving block (74) which is in sliding connection with the inner wall of a fixed mold (2), the surface of each moving block (74) is in sliding connection with a pressing block (75) which is fixedly connected with the surface of a movable mold (1), one side of the surface of the fixed mold (2) is fixedly connected with an air cylinder (76), and the movable end of each air cylinder (76) is fixedly connected with the corresponding moving block (74).
  8. 8. The drawing structure of an injection mold for manufacturing an automobile wiring terminal according to claim 4, wherein a positioning column (71) is fixedly connected to one side of the surface of the cavity lower mold (5), and the mold clamping rod (72) is located inside the positioning column (71).

Description

Injection mold's drawing die structure for automobile wiring terminal manufacturing Technical Field The application relates to the field of injection molds, in particular to a drawing mold structure of an injection mold for manufacturing an automobile wiring terminal. Background In the field of automotive connector manufacturing, terminals are critical electrical contact elements that require extremely stringent requirements for dimensional accuracy, structural integrity (especially in the area of the internal bore and conductive strip) and appearance quality (free of flash). When the traditional injection mold is used for forming the precise plastic part with the complex inner cavity structure, in a parting region where a plurality of sliding blocks and a movable core meet, absolute sealing of zero clearance is difficult to be realized under high-pressure melt injection by simply relying on the mold clamping force of the injection molding machine. A minute seal failure may result in the generation of burrs (burrs) that are difficult to repair, which not only affect the terminal appearance, but also are more likely to directly interfere with its critical electrical connection functions, resulting in an increased product rejection rate and increased post-processing costs. Disclosure of utility model In order to solve the problem of flash caused by sealing failure, the application provides a drawing structure of an injection mold for manufacturing an automobile wiring terminal. The application provides a drawing die structure of an injection die for manufacturing an automobile wiring terminal, which adopts the following technical scheme: The utility model provides an injection mold's for automobile binding post manufacture take out mould structure, includes movable mould and cover half that open and shut each other, the surface one side symmetry fixedly connected with die cavity upper die of movable mould, the surface one side symmetry fixedly connected with of cover half and die cavity upper die can separate each other and the mutual die cavity lower mould that closes and form the die cavity when closed each other, the outside symmetry of cover half is provided with and is used for taking out the first die assembly that takes out of die side seal on the die cavity, the outside of movable mould and cover half is provided with and is used for sealing and reduce the second die assembly that takes out of overlap between two die cavities upper die, the outside of cover half is provided with and is used for taking out die assembly and second die assembly cooperation with first die assembly and forms the subassembly of loosing core of airtight die cavity. By adopting the technical scheme, the triple cooperation of the first drawing die assembly, the second drawing die assembly and the core-pulling assembly is realized, the dead angle-free sealing of the cavity is realized, the injection molding flash is obviously reduced, and the surface quality of a product is improved. Preferably, the first drawing die assembly comprises a side pressing block fixedly connected with one side of the surface of the die cavity upper die, a first positioning rod which is inclined is fixedly connected with one side of the surface of the side pressing block, a first sealing block which is matched with the shape of the side pressing block is connected with the surface of the die cavity lower die in a sliding manner, and a first chute which is matched with the shape of the first positioning rod is formed in one side of the surface of the first sealing block. By adopting the technical scheme, the horizontal sealing force converted from the vertical clamping force is realized by the inclined design of the positioning rod. Preferably, the second drawing die assembly comprises a middle pressing block fixedly connected with one side of the surface of the upper die of the die cavity, a second positioning rod which is inclined is symmetrically and fixedly connected with one side of the surface of the middle pressing block, a second sealing block is symmetrically and slidingly connected with one side, close to each other, of the lower die of the die cavity, and a second chute is formed in one side of the surface of the second sealing block. By adopting the technical scheme, the second sealing block slides in the second sliding groove, and the second auxiliary block limits the transverse displacement, so that the sealing block is prevented from being separated due to pressure unbalanced load in the injection molding process. Preferably, the core pulling assembly comprises two guide holes which are respectively formed in two cavity lower dies, the interiors of the guide holes are slidably connected with cores with the sizes being matched, and one sides of the surfaces of the two cavity lower dies are fixedly connected with mold clamping rods which are in penetrating sliding connection with the cores. Through adopting above-mentioned technical schem