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CN-224210415-U - Can solve mould structure of runner air line

CN224210415UCN 224210415 UCN224210415 UCN 224210415UCN-224210415-U

Abstract

The utility model discloses a die structure capable of solving the problem of air vein of a gate, which comprises an upper die holder and a lower die holder, wherein a guide mechanism is connected between the upper die holder and the lower die holder, a fixed die is fixedly connected to the upper side of the lower die holder, a movable die is fixedly connected to the lower side of the upper die holder, cavities are formed in the fixed die and the movable die, a pouring hole is formed in the upper die holder, and a pouring guide pipe communicated with the pouring hole is fixedly connected to the upper side of the upper die holder. The utility model can ensure smooth gas discharge, avoid gas lines generated by gas retention and accumulation, effectively improve the appearance quality and the molding precision of injection products, and also improve the fluidity of molten plastics and the smoothness of mold casting.

Inventors

  • PENG JIAYING
  • JIANG FUWANG
  • PENG ZHIWEI
  • ZHOU GUOCHUN
  • Chen Wudan

Assignees

  • 深圳市山德实业有限公司

Dates

Publication Date
20260508
Application Date
20250526

Claims (8)

  1. 1. The die structure capable of solving the problem of air vein of the inlet comprises an upper die holder (1) and a lower die holder (2), and is characterized in that a guide mechanism is connected between the upper die holder (1) and the lower die holder (2), a fixed die (3) is fixedly connected to the upper side of the lower die holder (2), a movable die (4) is fixedly connected to the lower side of the upper die holder (1), a cavity (5) is formed in each of the fixed die (3) and the movable die (4), a pouring hole (6) is formed in the upper die holder (1), a pouring guide pipe (7) communicated with the pouring hole (6) is fixedly connected to the upper side of the upper die holder (1), the diameter of the pouring guide pipe (7) is gradually increased from top to bottom, a plurality of horn-shaped feed holes (8) communicated with the cavity (5) are formed in the movable die (4), a cross-shaped runner (9) communicated with the horn-shaped feed holes (8) is formed in the upper side of the movable die (4), a cross-shaped runner (9) is gradually arranged at the center position of the pouring runner (6) and is positioned right below the cavity (10) and is gradually communicated with the vent hole (10) on the upper die holder (1), the upper side of the movable mould (4) is provided with a plurality of exhaust grooves (11) communicated with the exhaust holes (10) and the cross-shaped runner (9).
  2. 2. The die structure of claim 1, wherein an electric heater (12) is fixedly connected to the upper side of the upper die holder (1), the electric heater (12) is tightly attached to the outer wall of the pouring guide tube (7), and a temperature controller (13) for controlling the electric heater (12) is fixedly connected to the upper die holder (1).
  3. 3. The die structure of claim 2, wherein the guide mechanism comprises a plurality of guide posts (14) fixedly connected to four corners of the upper surface of the lower die holder (2), a plurality of guide sleeves (15) corresponding to the guide posts (14) are fixedly connected to the upper die holder (1), and the guide posts (14) are movably inserted into the guide sleeves (15).
  4. 4. The die structure as claimed in claim 3, wherein the inner wall of the pouring conduit (7), the wall of the pouring hole (6), the wall of the trumpet-shaped feeding hole (8) and the cross-shaped runner (9) are coated with chromium plating paint.
  5. 5. The mold structure according to claim 4, wherein the inner wall of the pouring conduit (7), the wall of the pouring hole (6), the wall of the trumpet-shaped feeding hole (8), the cavity wall of the cavity (5) and the cross-shaped runner (9) are subjected to surface polishing treatment.
  6. 6. The die structure of claim 5, wherein the upper side of the upper die holder (1) is fixedly connected with a heat-preserving sleeve (16), and the electric heater (12) is positioned in the heat-preserving sleeve (16).
  7. 7. The mold structure according to claim 6, wherein both the upper and lower ends of the guide sleeve (15) are rounded.
  8. 8. The die structure of claim 7, wherein an overflow preventing cylinder (17) is fixedly sleeved outside the pouring guide pipe (7), a discharge pipe (18) is fixedly communicated with the overflow preventing cylinder (17), a guide plate (19) is fixedly connected to the inner wall of the bottom of the overflow preventing cylinder (17), and a collecting plate (20) is fixedly connected to the vertical inner wall of the overflow preventing cylinder (17).

Description

Can solve mould structure of runner air line Technical Field The utility model relates to the technical field of dies, in particular to a die structure capable of solving the problem of air vein of an inlet gate. Background The injection mold is a tool for producing plastic products and also a tool for endowing the plastic products with complete structures and precise dimensions. Injection molding is a processing method used in mass production of parts with complex shapes, and specifically refers to injection molding of heated and melted plastic into a mold cavity by an injection molding machine under high pressure, and cooling and solidification are carried out to obtain a molded product. In the traditional inlet design of the existing injection mold, the design of the exhaust hole is unreasonable, so that uniform and rapid discharge of gas in the inlet area cannot be ensured, gas is retained at the inlet of the mold, air streaks are formed in the inlet area, and the appearance and quality of product forming are affected. Disclosure of utility model The utility model aims to provide a mold structure capable of solving the problem of air vein of an inlet gate so as to solve the problem in the background technology. In order to achieve the above purpose, the present utility model provides the following technical solutions: The utility model provides a die structure capable of solving the problem of air vein of a gate, which comprises an upper die holder and a lower die holder, wherein a guide mechanism is connected between the upper die holder and the lower die holder, the upper side of the lower die holder is fixedly connected with a fixed die, the lower side of the upper die holder is fixedly connected with a movable die, the fixed die and the movable die are both provided with cavities, the upper die holder is provided with a pouring hole, the upper side of the upper die holder is fixedly connected with a pouring guide pipe communicated with the pouring hole, the diameter of the pouring guide pipe is gradually increased from top to bottom, the movable die is provided with a plurality of horn-shaped feeding holes communicated with the cavities, the upper side of the movable die is provided with a cross-shaped runner communicated with the horn-shaped feeding holes, the center position of the cross-shaped runner is positioned under the pouring hole, the upper die holder and the movable die are both provided with a plurality of vent holes communicated with the cavities, the diameters of the vent holes are gradually increased from bottom to top, and the upper side of the movable die is provided with a plurality of vent grooves communicated with the vent holes and the cross-shaped runner. Further, an electric heater is fixedly connected to the upper side of the upper die holder, the electric heater is tightly attached to the outer wall of the pouring guide pipe, and a temperature controller for controlling the electric heater is fixedly connected to the upper die holder. Further, the guide mechanism comprises a plurality of guide posts fixedly connected to four corners of the upper surface of the lower die holder, a plurality of guide sleeves corresponding to the guide posts are fixedly connected to the upper die holder, and the guide posts are movably inserted into the guide sleeves. Further, the inner wall of the pouring guide pipe, the hole wall of the pouring hole, the hole wall of the trumpet-shaped feeding hole and the cross-shaped runner are coated with chromium plating paint. Further, the inner wall of the pouring guide pipe, the hole wall of the pouring hole, the hole wall of the trumpet-shaped feeding hole, the cavity wall of the cavity and the cross-shaped runner are subjected to surface polishing treatment. Further, the upper side of the upper die holder is fixedly connected with a heat preservation sleeve, and the electric heater is positioned in the heat preservation sleeve. Further, the upper end and the lower end of the guide sleeve are rounded. Further, the pouring guide pipe is fixedly sleeved with an overflow preventing cylinder, a discharge pipe is fixedly communicated with the overflow preventing cylinder, a guide plate is fixedly connected to the inner wall of the bottom of the overflow preventing cylinder, and a collecting plate is fixedly connected to the vertical inner wall of the overflow preventing cylinder. Compared with the prior art, the utility model has the beneficial effects that: 1. According to the utility model, through the arranged pouring holes, the pouring guide pipes, the horn-shaped feeding holes, the cross-shaped flow channels, the exhaust holes and the exhaust grooves, gas in the die can be discharged in an accelerating way during pouring, gas lines generated due to gas retention and accumulation can be avoided, and the appearance quality and the forming precision of injection products are effectively improved. 2. According to the utility model, through the electric he