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CN-224210438-U - In-mold vacuum forming device

CN224210438UCN 224210438 UCN224210438 UCN 224210438UCN-224210438-U

Abstract

The utility model relates to an in-mold vacuum forming device which comprises a female mold, a male mold, a mounting groove, a sealing ring and a split type module, wherein the female mold comprises a female mold fixing plate and a female mold plate, the female mold plate is provided with a female mold forming cavity formed by inwards sinking from the surface, the male mold comprises a male mold fixing plate, a male mold base plate, a male mold bearing plate and a male mold plate, the male mold plate is provided with a male mold forming cavity formed by inwards sinking from the surface, the female mold forming cavity and the male mold forming cavity are oppositely arranged, the mounting groove is formed by inwards sinking from opposite surfaces of a plurality of plate bodies included in the female mold and the male mold, the sealing ring is arranged in the mounting groove, the sealing ring is formed in the mold, the sealed cavity is formed in the mold, the male mold bearing plate is provided with an air suction channel formed by inwards sinking from the outer surface, the air suction channel is communicated with the cavity, and the sealing performance and the structural rigidity are obviously improved while the mold is ensured to be easily disassembled and cleaned by the split type module design, the multiple sealing ring layout and the centralized air suction channel and the air pressure real-time monitoring.

Inventors

  • ZUO YONG
  • HUANG HE
  • Lai Wanping

Assignees

  • 苏州泰迅通电子科技有限公司

Dates

Publication Date
20260508
Application Date
20250609

Claims (10)

  1. 1. An in-mold vacuum forming apparatus, comprising: The female die (1) comprises a female die fixing plate (11) and a female die plate (12) fixedly connected with the female die fixing plate (11), wherein the female die plate (12) is provided with a female die forming cavity (16) formed by inwards sinking from the surface; the male die (2) comprises a male die fixing plate (21), a male die base plate (22) fixedly connected with the male die fixing plate (21), a male die carrier plate (23) and a male die plate (24) which are overlapped on the male die base plate (22), wherein the male die plate (24) is provided with a male die forming cavity (241) formed by inwards sinking from the surface, and the female die forming cavity (16) and the male die forming cavity (241) are oppositely arranged; the mounting groove (3) is formed by recessing inwards from opposite surfaces of a plurality of plate bodies included in the female die (1) and the male die (2); the sealing ring (4) is arranged in the mounting groove (3), and a closed cavity is formed in the die; The male mold carrier plate (23) is provided with a suction channel (231) which is formed by recessing inwards from the outer surface, and the suction channel (231) is communicated with the cavity.
  2. 2. The in-mold vacuum forming apparatus according to claim 1, wherein the female mold plate (12) has a female mold vent hole (17) penetrating through upper and lower surfaces thereof, one end of the female mold vent hole (17) is located between the female mold fixing plate (11) and the female mold plate (12), surrounded by the seal ring (4), and the other end is located on a lower surface of the female mold plate (12) corresponding to the male mold (2).
  3. 3. An in-mold vacuum forming apparatus according to claim 2, wherein the male mold plate (24) has a male mold vent hole (25) penetrating its upper and lower surfaces, the male mold vent hole (25) being surrounded by the seal ring (4), one end communicating with the female mold vent hole (17), the other end communicating with the air suction passage (231).
  4. 4. An in-mold vacuum forming apparatus as defined in claim 3, wherein the suction passage (231) includes a suction main passage (2311) and a suction sub passage (2312), the suction main passage (2311) being formed to be recessed inward from an outer surface of the male mold carrier plate (23), the suction sub passage (2312) being formed to be communicated with the suction main passage (2311) from upper and lower surfaces of the male mold carrier plate (23), respectively.
  5. 5. The in-mold vacuum forming apparatus according to claim 4, wherein the suction branch passage (2312) communicates with the male mold vent (25).
  6. 6. The in-mold vacuum forming apparatus according to claim 1, wherein the male mold plate (24) has a mounting groove (3) formed to be recessed inward from a surface thereof, the mounting groove (3) surrounds the male mold forming cavity (241), the inside of the mounting groove (3) is provided with the seal ring (4), and the seal ring (4) is respectively in contact with the surfaces of the male mold plate (24) and the female mold plate (12) when the mold is closed.
  7. 7. The in-mold vacuum forming apparatus according to claim 1, wherein the master mold fixing plate (11) is provided with the mounting groove (3) formed by being recessed inward from a surface opposite to the master mold plate (12), a seal ring (4) is provided in the mounting groove (3), and the seal ring (4) is respectively in contact with the master mold fixing plate (11) and the master mold plate (12).
  8. 8. An in-mold vacuum forming apparatus according to claim 1, wherein a male mold carrier plate (23) has an installation groove (3) recessed inward from a face opposite to the male mold carrier plate (22), a seal ring (4) is provided inside the installation groove (3), and the seal ring (4) is in contact with the male mold carrier plate (23) and the male mold carrier plate (22), respectively.
  9. 9. An in-mold vacuum forming apparatus according to claim 8, wherein the male mold carrier plate (23) further has an inwardly recessed mounting groove (3) from a face opposite to the male mold plate (24), inside which a seal ring (4) is provided, the seal ring (4) being in contact with the male mold carrier plate (23) and the male mold plate (24), respectively.
  10. 10. The in-mold vacuum forming apparatus according to claim 1, wherein the bottom of the male die pad (22) is recessed inward from a face opposite to the male die fixing plate (21) to form a mounting groove (3) in which a seal ring (4) is provided, the seal ring (4) being in contact with the male die fixing plate (21) and the male die pad (22), respectively.

Description

In-mold vacuum forming device Technical Field Relates to the technical field of dies, in particular to an in-die vacuum forming device. Background During injection molding, trapped air is one of the major problems leading to product defects. The traditional die mainly exhausts air by arranging an exhaust groove or utilizing a parting surface gap, but has limited exhaust efficiency, and especially has the defects of material shortage, burning, air streak and the like for complex structures or high-precision products. In addition, conventional exhaust designs may cause flash or dimensional deviations that affect product quality. According to chinese patent CN201821304837, a vacuum device is disclosed in the mold, the device is connected with the air exhaust channel of the mold plate by arranging a spiral air exhaust groove on the mold core insert, and actively exhausts air by using a vacuum pump, so as to reduce residual air in the cavity, and improve injection filling effect, but the device adopts a structure which is more complicated and difficult to clean because of the design of the spiral air exhaust groove, and the device only depends on the cooperation of the spiral air exhaust groove and the air exhaust channel, which may cause tiny leakage after mold assembly, and affect the stability of vacuum degree. Therefore, there is a need to develop an in-mold vacuum forming apparatus to solve the above-described problems. Disclosure of utility model The utility model aims to provide an in-mold vacuum forming device which is easy to clean and high in stability. In order to achieve the above purpose, the utility model provides a technical scheme that an in-mold vacuum forming device comprises: the female die comprises a female die fixing plate and a female die plate fixedly connected with the female die fixing plate, wherein the female die plate is provided with a female die forming cavity formed by inwards sinking from the surface; The male die comprises a male die fixing plate, a male die base plate fixedly connected with the male die fixing plate, a male die supporting plate and a male die plate, wherein the male die supporting plate and the male die plate are overlapped on the male die base plate, the male die plate is provided with a male die forming cavity formed by inwards sinking from the surface, and the female die forming cavity and the male die forming cavity are oppositely arranged; The mounting grooves are formed by recessing inwards from opposite surfaces of a plurality of plate bodies included in the female die and the male die; the sealing ring is arranged in the mounting groove, and a closed cavity is formed in the die; the male die carrier plate is provided with an air suction channel which is formed by recessing inwards from the outer surface, and the air suction channel is communicated with the cavity. Further, the female die plate is provided with a female die vent hole penetrating through the upper surface and the lower surface of the female die plate, one end of the female die vent hole is positioned between the female die fixing plate and the female die plate and is surrounded by the sealing ring, and the other end of the female die vent hole is positioned on the lower surface of the female die plate and corresponds to the male die. Further, the male mold plate is provided with a male mold vent hole penetrating through the upper surface and the lower surface of the male mold plate, the male mold vent hole is surrounded by the sealing ring, one end of the male mold vent hole is communicated with the female mold vent hole, and the other end of the male mold vent hole is communicated with the air suction channel. Further, the air extraction channel comprises an air extraction main channel and an air extraction branch channel, the air extraction main channel is formed by inwards sinking from the outer surface of the male die carrier plate, and the air extraction branch channel is formed by inwards sinking from the upper surface and the lower surface of the male die carrier plate and communicating with the air extraction main channel. Further, the air suction branch channel is communicated with the ventilation holes of the male die. Further, the male die plate is provided with a mounting groove formed by inwards sinking from the surface of the male die plate, the mounting groove surrounds the male die forming cavity, the sealing ring is arranged in the mounting groove, and the sealing ring is respectively contacted with the surfaces of the male die plate and the female die plate when the die is assembled. Further, the female die fixing plate is provided with an installation groove formed by inwards sinking from one surface opposite to the female die plate, a sealing ring is arranged in the installation groove, and the sealing ring is respectively contacted with the female die fixing plate and the female die plate. Further, the male die support plate is provided with an installation groove whi