CN-224210456-U - Injection mold assembly and injection molding machine

CN224210456UCN 224210456 UCN224210456 UCN 224210456UCN-224210456-U

Abstract

The utility model relates to an injection mold assembly and an injection molding machine, and relates to the technical field of injection molding. The injection mold assembly comprises a first mold and a second mold, wherein the first mold and the second mold can relatively move to enclose a mold cavity when the first mold is attached to the second mold, a molded part is provided with a molded part for forming a product structure, and a transmission assembly is connected with the molded part and is configured to drive the molded part to do spiral movement relative to the first mold when the first mold and the second mold relatively move, so that the molded part stretches into the mold cavity when the first mold is attached to the second mold, and the molded part is unscrewed from a product when the first mold is separated from the second mold. When the mould is separated, the transmission mechanism drives the forming part to move spirally, so that the product and the forming part are smoothly separated. Compared with manual screwing of the product, the dismantling efficiency and the safety of the product are improved.

Inventors

Chai Kaiming
ZHOU MINJIE
LI YUEFENG
FENG HUI
WANG TIANWU
Cui Xushuai

Assignees

格力电器（郑州）有限公司
珠海格力电器股份有限公司

Dates

Publication Date: 20260508
Application Date: 20250410

Claims (10)

1. An injection mold assembly, comprising: The first die and the second die can move relatively to enclose a die cavity when the first die and the second die are attached; A molding member having a molding portion for forming a product structure, and The transmission assembly is connected with the forming part and is configured to drive the forming part to do spiral motion relative to the first die when the first die and the second die relatively move, so that the forming part stretches into the die cavity when the first die and the second die are attached, and the forming part is unscrewed from a product when the first die and the second die are separated; the transmission assembly comprises a spiral guide piece and a transmission mechanism, wherein the spiral guide piece is fixedly connected with the first die, the spiral guide piece is in threaded connection with the forming piece, the transmission mechanism is connected with the forming piece, and the transmission mechanism is configured to drive the forming piece to rotate relative to the spiral guide piece when the first die and the second die relatively displace, so that the forming piece does spiral motion relative to the first die under the action of the spiral guide piece.
2. The injection mold assembly of claim 1, wherein the injection mold assembly comprises a plurality of mold cavities, The shaping portion is the helicitic texture, the shaping piece is provided with first transmission screw thread, first transmission screw thread with screw guide threaded connection, the axis of first transmission screw thread with the axis collineation of shaping portion, the spiral direction of first transmission screw thread with the spiral direction of shaping portion is the same, just the pitch of first transmission screw thread with the pitch of shaping portion equals.
3. The injection mold assembly of claim 1, wherein the injection mold assembly comprises a plurality of mold cavities, The transmission mechanism comprises a first transmission piece and a second transmission piece, the first transmission piece is fixed on the second die, the first transmission piece is connected with the second transmission piece in a threaded manner, the second transmission piece is rotatably arranged on the first die, and the second transmission piece is directly connected with the forming piece or connected with the forming piece through a transmission piece; When the first die and the second die are relatively displaced, the second die drives the second transmission piece to be far away from the first die, so that the second transmission piece rotates and drives the forming piece to rotate relative to the spiral guide piece.
4. An injection mold assembly as claimed in claim 3, wherein, The transmission part comprises a transmission gear rotatably arranged on the first die, and the second transmission part and the forming part are respectively meshed with the transmission gear.
5. The injection mold assembly of any of claims 1-4, wherein, The second die comprises a base body, a first sub-module and a second sub-module; The first submodule is used for forming a first outer side surface of a product, the second submodule is used for forming a second outer side surface of the product, and the first outer side surface and the second outer side surface are two adjacent surfaces of the product; The first submodule is slidably mounted on the base, a first elastic piece which is in contact with the base is connected to one side, away from the first die, of the first submodule, and the first elastic piece is configured to drive the first submodule to be away from the base and away from the second submodule when the first die is separated from the second die.
6. The injection mold assembly of claim 5, wherein the injection mold assembly comprises a plurality of mold cavities, The base is provided with a first sliding groove, the first submodule comprises a first sliding block which is slidably arranged in the first sliding groove, the first sliding groove is provided with a first end which is close to the first die and a second end which is far away from the first die, and the first sliding groove is gradually close to the second submodule from the first end to the second end.
7. The injection mold assembly of claim 6 wherein the mold assembly comprises a plurality of mold cavities, The second submodule is slidably mounted on the base, a second elastic piece which is in contact with the base is connected to one side, away from the first die, of the second submodule, and the second elastic piece is configured to drive the second submodule to be away from the base and away from the first submodule when the first die is separated from the second die.
8. The injection mold assembly of claim 6 wherein the mold assembly comprises a plurality of mold cavities, The base is provided with a limiting block, and the limiting block is configured to abut against the side surface of the first sub-module, which is far away from the second sub-module, when the first elastic piece drives the first sub-module to be far away from the base.
9. The injection mold assembly of any of claims 1-4, wherein, The first mold includes a protrusion configured to extend into the cavity when the first mold forms a cavity with the second mold, such that the product abuts the protrusion when the molded part is unscrewed from the product.
10. An injection molding machine, comprising: the injection mold assembly of any one of claims 1-9.

Description

Injection mold assembly and injection molding machine Technical Field The utility model relates to the technical field of injection molding, in particular to an injection mold assembly and an injection molding machine. Background In order to form the screw structure of the injection molding product, it is necessary to extend a threaded part into the mold cavity, and after the molten material is injected into the mold cavity, the molten material causes the injection molding product to form the screw structure under the limitation of the threaded part. Whether the internal thread of the product is formed or the external thread of the product is formed, the product formed by injection molding is connected with the thread part in a threaded manner, and the product is troublesome to dismantle. In the related art, when an injection molding product with a threaded structure is removed from an injection molding machine, the product needs to be manually screwed, so that the product is separated from a mold, the removal efficiency of the product is reduced, and the product needs to be manually removed, so that a certain safety risk is realized. Disclosure of utility model The utility model provides an injection mold assembly and an injection molding machine, which are used for improving the dismantling efficiency of an injection product with threads after injection molding. In a first aspect, the present utility model provides an injection mold assembly comprising: The device comprises a first die, a second die, a molded part, a transmission assembly and a control mechanism, wherein the first die and the second die can move relatively to enclose a die cavity when the first die is attached to the second die, the molded part is provided with a molded part for forming a product structure, the transmission assembly is connected with the molded part and is configured to drive the molded part to perform spiral motion relative to the first die when the first die and the second die move relatively, so that the molded part stretches into the die cavity when the first die is attached to the second die, and the molded part is unscrewed from a product when the first die and the second die are separated. In one embodiment, the transmission assembly comprises a spiral guide member and a transmission mechanism, wherein the spiral guide member is fixedly connected with the first die, the spiral guide member is in threaded connection with the forming member, the transmission mechanism is connected with the forming member, and the transmission mechanism is configured to drive the forming member to rotate relative to the spiral guide member when the first die and the second die are relatively displaced, so that the forming member can do spiral motion relative to the first die under the action of the spiral guide member. In one embodiment, the forming part is of a threaded structure, the forming part is provided with a first transmission thread, the first transmission thread is in threaded connection with the spiral guide part, the axis of the first transmission thread is collinear with the axis of the forming part, the spiral direction of the first transmission thread is the same as that of the forming part, and the pitch of the first transmission thread is equal to that of the forming part. In one embodiment, the transmission mechanism comprises a first transmission member and a second transmission member, the first transmission member is fixed on the second die, the first transmission member is in threaded connection with the second transmission member, the second transmission member is rotatably installed on the first die, and the second transmission member is directly connected with the forming member or connected with the forming member through a transmission member; When the first die and the second die are relatively displaced, the second die drives the second transmission piece to be far away from the first die, so that the second transmission piece rotates and drives the forming piece to rotate relative to the spiral guide piece. In one embodiment, the transmission part comprises a transmission gear rotatably mounted on the first die, and the second transmission part and the forming part are respectively meshed with the transmission gear. In one embodiment, the second mold comprises a base, a first sub-module, and a second sub-module; the first submodule is used for forming a first outer side surface of a product, the second submodule is used for forming a second outer side surface of the product, and the first outer side surface and the second outer side surface are two adjacent surfaces of the product; The first submodule is slidably mounted on the base, a first elastic piece which is in contact with the base is connected to one side, away from the first die, of the first submodule, and the first elastic piece is configured to drive the first submodule to be away from the base and away from the second submodule when the firs