CN211221831U

CN211221831U - Injection mold of turnover box

Info

Publication number: CN211221831U
Application number: CN201922172172.8U
Authority: CN
Inventors: 罗棋泉; 刘俊辉
Original assignee: Qingdao Xingfeng Plastic Products Co ltd
Current assignee: Qingdao Xingfeng Plastic Products Co ltd
Priority date: 2019-12-06
Filing date: 2019-12-06
Publication date: 2020-08-11
Anticipated expiration: 2029-12-06

Abstract

The utility model relates to an injection mold technical field just discloses an injection mold of turnover case, including movable mould and cover half, the bottom of movable mould is provided with the guide pillar, the both ends of cover half bottom are connected with the bottom plate through the backing plate, be provided with the guide pillar cover on the cover half, be provided with the pattern drawing device who is located between two backing plates on the bottom plate, the inside of movable mould is provided with the runner subassembly. According to the injection mold of the turnover box, the thermoplastic material flows into the main runner through the sprue bush and is guided into the sub-runners along the sprue bush, the thermoplastic material flows into the secondary runners after filling the sub-runners, and is guided out from the discharge port along the secondary runners, injection molding is performed on the mold, the discharge port is distributed on the periphery of the movable mold, the cavity in the mold can be rapidly filled, and accordingly the influence on the injection molding effect caused by a single injection port is avoided.

Description

Injection mold of turnover box

Technical Field

The utility model relates to an injection mold technical field specifically is an injection mold of turnover case.

Background

The turnover box is also called as a logistics box, is widely used in the industries of machinery, automobiles, household appliances, light industry, electronics and the like, can resist acid, alkali and oil stain, is nontoxic and tasteless, can be used for containing food and the like, is convenient to clean, and is convenient to turnover parts, orderly to stack and convenient to manage. The turnover box is reasonably designed, has excellent quality, is suitable for links such as transportation, distribution, storage, circulation and processing in factory logistics, and is processed and formed by an injection mold, wherein the injection mold is a tool for producing plastic products and is also a tool for endowing the plastic products with complete structures and accurate sizes, and the injection molding is a processing method used for batch production of parts with complex shapes.

At present, the injection mold is large in size of a turnover box in the injection molding process, so that when a pouring gate is used for injection molding, the thermoplastic is slow in a cavity, the thermoplastic is easy to cool, finished products are deformed, the thermoplastic is easy to stick in the cavity after being cooled, the difficulty in stripping is increased, and the injection mold of the turnover box is provided for this reason.

SUMMERY OF THE UTILITY MODEL

The aforesaid to prior art exists not enoughly, the utility model provides an injection mold of turnover case.

The utility model provides a following technical scheme: the injection mold for the turnover box comprises a movable mold and a fixed mold, wherein a guide pillar is arranged at the bottom of the movable mold, two ends of the bottom of the fixed mold are connected with a bottom plate through base plates, a guide pillar sleeve is arranged on the fixed mold, a mold stripping device located between the two base plates is arranged on the bottom plate, and a pouring gate assembly is arranged inside the movable mold.

Preferably, cooling pipes are arranged in the movable mold and the fixed mold, and two ends of each cooling pipe extend out.

Preferably, the stripping device comprises fixed plate, knock-out lever and reset spring, the knock-out lever sets up at the top of fixed plate, and the top of knock-out lever extends to in the cover half cavity, reset spring sets up on being located the knock-out lever between cover half and the bottom plate.

Preferably, when the fixed plate is contacted with the bottom plate, the top of the ejector rod is parallel to the bottom of the fixed die cavity.

Preferably, the gate component comprises a gate sleeve, a main runner, a sub-runner and a discharge port, the gate sleeve is arranged at the top of the movable mold, the main runner, the sub-runner and a discharge port of the sub-runner are arranged inside the movable mold, the main runner is communicated with the gate sleeve, the other end of the sub-runner is communicated with the middle of the main runner, the sub-runners are provided with multiple groups and communicated with the sub-runners, and the discharge port is arranged at the other end of the sub-runner.

Preferably, the discharge ports are uniformly distributed on the bottom and the side surface of the movable die.

Compared with the prior art, the utility model discloses possess following beneficial effect:

according to the injection mold of the turnover box, thermoplastic plastics flow into the main runner through the sprue bush and are guided into the sub-runners along the sprue bush, the thermoplastic plastics flow into the multiple sub-runners after filling the sub-runners, are guided out from the discharge ports along the sub-runners, and are subjected to injection molding, the discharge ports are distributed on the periphery of the movable mold, so that a cavity in the mold can be rapidly filled, and the influence on the injection molding effect caused by a single injection port is avoided; after the turnover box is formed, water flow is guided out of the die through the cooling pipe, the die is rapidly cooled, then the movable die and the fixed die are separated, the fixed plate drives the ejector rod to eject out the turnover box in the cavity, and the fixed plate drives the ejector rod to recover the original position under the elasticity of the reset spring, so that the mold stripping is convenient.

Drawings

FIG. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic diagram of the internal structure of fig. 1 according to the present invention.

In the figure: 1. moving the mold; 2. fixing a mold; 3. a guide post; 4. a base plate; 5. a base plate; 6. a guide post sleeve; 7. a stripping device; 71. a fixing plate; 72. ejecting the rod; 73. a return spring; 8. a gate assembly; 81. a sprue bush; 82. a main flow channel; 83. a shunt channel; 84. a secondary flow passage; 85. a discharge port; 9. and (7) cooling the tube.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present disclosure more clear, the technical solutions of the embodiments of the present disclosure will be described below clearly and completely with reference to the accompanying drawings of the embodiments of the present disclosure. It is to be understood that the described embodiments are only a few embodiments of the present disclosure, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the described embodiments of the disclosure without any inventive step, are within the scope of protection of the disclosure.

To maintain the following description of the embodiments of the present disclosure clear and concise, detailed descriptions of known functions and known components are omitted so as to not unnecessarily obscure the concepts of the present invention.

Referring to fig. 1-2, an injection mold for a circulation box comprises a movable mold 1 and a fixed mold 2, wherein a guide pillar 3 is arranged at the bottom of the movable mold 1, two ends of the bottom of the fixed mold 2 are connected with a bottom plate 5 through backing plates 4, a guide pillar sleeve 6 is arranged on the fixed mold 2, a mold stripping device 7 positioned between the two backing plates 4 is arranged on the bottom plate 5, and a gate assembly 8 is arranged inside the movable mold 1.

In an optional embodiment, cooling pipes 9 are arranged in the movable mold 1 and the fixed mold 2, two ends of each cooling pipe 9 extend out, after the circulation box is formed, water flow is guided out of the mold through the cooling pipes 9, the mold is cooled rapidly, and then the water flow is guided out of the cooling pipes 9 to take away heat of the mold, so that cooling is performed.

In an alternative embodiment, the mold stripping device 7 is composed of a fixed plate 71, an ejector rod 72 and a return spring 73, the ejector rod 72 is arranged at the top of the fixed plate 71, the top of the ejector rod 72 extends into the cavity of the fixed mold 2, the return spring 73 is arranged on the ejector rod 72 between the fixed mold 2 and the bottom plate 5, the movable mold 1 and the fixed mold 2 are separated, the fixed plate 71 drives the ejector rod 72 to eject the turnover box in the cavity, and under the elasticity of the return spring 73, the fixed plate 71 drives the ejector rod 72 to return to the original position, so that the mold stripping is facilitated.

In an alternative embodiment, when the fixing plate 71 contacts the bottom plate 5, the top of the ejector rod 72 is parallel to the bottom of the cavity of the fixed mold 2, and the ejector rod 72 is tightly attached to the bottom of the cavity, so that the situation that the appearance of the finished product is affected due to too much protrusion of the ejector rod 72 is avoided.

In an alternative embodiment, the gate component 8 is composed of a gate sleeve 81, a main runner 82, branch runners 83, sub runners 84 and discharge ports 85, the gate sleeve 81 is arranged on the top of the movable mold 1, the main runner 82, the branch runners 83 and the discharge ports 85 of the sub runners 84 are arranged inside the movable mold 1, the main runner 82 is communicated with the gate sleeve 81, the other ends of the branch runners 83 are communicated with the middle part of the main runner 82, the sub runners 84 are arranged in multiple groups and are communicated with the branch runners 83, the discharge ports 85 are arranged at the other ends of the sub runners 84, the discharge ports 85 are uniformly distributed on the bottom and the side surfaces of the movable mold 1, thermoplastic flows into the main runner 82 through the gate sleeve 81 and is guided into the branch runners 83 along the same, the thermoplastic flows into the multiple sub runners 84 after filling the branch runners 83, and is guided out from the discharge ports 85 along the sub runners 84, injection molding is performed on the mold, the discharge ports 85 are distributed on the periphery of the movable mold 1, so, thus, the single injection molding port is avoided, and the injection molding effect is influenced.

The above embodiments are only exemplary embodiments of the present invention, and are not intended to limit the present invention, and the protection scope of the present invention is defined by the claims. Various modifications and equivalents of the invention can be made by those skilled in the art within the spirit and scope of the invention, and such modifications and equivalents should also be considered as falling within the scope of the invention.

Claims

1. The utility model provides an injection mold of turnover case, includes movable mould (1) and cover half (2), its characterized in that: the mold is characterized in that a guide pillar (3) is arranged at the bottom of the movable mold (1), two ends of the bottom of the fixed mold (2) are connected with a bottom plate (5) through base plates (4), a guide pillar sleeve (6) is arranged on the fixed mold (2), a mold stripping device (7) located between the two base plates (4) is arranged on the bottom plate (5), and a pouring gate assembly (8) is arranged inside the movable mold (1).

2. The injection mold of the turnover box according to claim 1, wherein: all be provided with cooling tube (9) in movable mould (1) and cover half (2), and the both ends of cooling tube (9) all extend.

3. The injection mold of the turnover box according to claim 1, wherein: the stripping device (7) comprises a fixed plate (71), an ejector rod (72) and a reset spring (73), the ejector rod (72) is arranged at the top of the fixed plate (71), the top of the ejector rod (72) extends into the cavity of the fixed die (2), and the reset spring (73) is arranged on the ejector rod (72) between the fixed die (2) and the bottom plate (5).

4. The injection mold of the turnover box according to claim 3, wherein: when the fixed plate (71) is contacted with the bottom plate (5), the top of the ejector rod (72) is parallel to the bottom of the cavity of the fixed die (2).

5. The injection mold of the turnover box according to claim 1, wherein: the sprue component (8) is composed of a sprue bush (81), a main runner (82), a branch runner (83), a secondary runner (84) and a discharge port (85), the sprue bush (81) is arranged at the top of the movable mold (1), the main runner (82), the branch runner (83) and the discharge port (85) of the secondary runner (84) are arranged inside the movable mold (1), the main runner (82) is communicated with the sprue bush (81), the other end of the branch runner (83) is communicated with the middle of the main runner (82), the secondary runner (84) is provided with multiple groups and is communicated with the branch runner (83), and the discharge port (85) is arranged at the other end of the secondary runner (84).

6. The injection mold of the turnover box according to claim 5, wherein: the discharge ports (85) are uniformly distributed on the bottom and the side surface of the movable die (1).