CN218985534U

CN218985534U - Injection mold

Info

Publication number: CN218985534U
Application number: CN202222543097.3U
Authority: CN
Inventors: 薛浩
Original assignee: Wuxi Xiaguang Plastic Industry Technology Co ltd
Current assignee: Wuxi Xiaguang Plastic Industry Technology Co ltd
Priority date: 2022-09-26
Filing date: 2022-09-26
Publication date: 2023-05-09
Anticipated expiration: 2032-09-26

Abstract

The utility model discloses an injection mold, which comprises a lower mold and an upper mold cover, wherein the upper mold cover is positioned above the lower mold and is matched with the lower mold for use; the lifting mechanism is arranged above the upper die cover, a water storage cavity is further formed in the upper die cover, cooling water is stored in the water storage cavity, and a water cooling circulating pump is further connected to the water storage cavity. Through the cooperation of water storage chamber, interior pole and elevating system that sets up in this device, can utilize the lift of interior pole after the general solidification of inside die cavity product for the cold water in water storage chamber can be direct with the product contact in the die cavity, thereby can effectually reduce the temperature of inside injection molding product, reach the purpose that promotes product productivity.

Description

Injection mold

Technical Field

The utility model relates to the technical field of mold equipment, in particular to an injection mold.

Background

In the prior art, the injection mold is widely applied to the manufacturing industry, and can be manufactured in an injection molding mode no matter a precise instrument or a common injection mold, and the main technical point of the existing injection mold is that a mold cavity which accords with the size and the shape of a product is arranged in the mold, then injection liquid and the like are injected into the mold cavity, and the injection liquid is waited for cooling.

For example: publication (bulletin) number: an injection mold is disclosed in the patent document of CN 209335984U, and the technical scheme includes: the wire adjusting assembly comprises a plurality of first adjusting parts and a plurality of second adjusting parts, each first adjusting part is embedded in each first adjusting through hole in a one-to-one correspondence manner, each second adjusting part is embedded in each second adjusting through hole in a one-to-one correspondence manner, when plastic water flows through the transition cavity, an earphone wire through hole is formed in the position of the first wire port filling block body on the tuning shell forming cavity of the earphone wire on the tuning shell of the earphone wire, the earphone wire through hole is a rectangular through hole, and the length range of the rectangular through hole is 0.2-2cm; the earphone wire through hole is a circular through hole, and the aperture range of the circular through hole is 0.3-2cm; namely, line openings with different shapes or different apertures are embedded into the first adjusting through hole to fill the block, so that the earphone tuning piece shell adapting to earphone wires with different line diameters and different shapes can be produced.

In the above technical scheme, the earphone wire is manufactured by arranging the longer mold cavity, but in the prior art, besides the technical key points of the internal shape, the cooling of the integral mold is also an important problem after injection molding, and after injection molding is finished in the prior art, the integral mold usually waits for natural cooling for a very long time; while some molds are equipped with cooling mechanisms, the cooling effect is generally poor.

Therefore, in order to solve the above problems, it is necessary to develop an injection mold having a good cooling effect.

Disclosure of Invention

The utility model aims at overcoming the defects in the prior art and provides an injection mold; the technical scheme is as follows:

an injection mold comprises a lower mold and an upper mold cover which is positioned above the lower mold and matched with the lower mold for use, wherein a mold cavity is arranged in the lower mold, and the shape and the structure of the mold cavity are consistent with those of a product to be injection molded; the lifting mechanism is arranged above the upper die cover, a water storage cavity is further formed in the upper die cover, cooling water is stored in the water storage cavity, and a water cooling circulating pump is further connected to the water storage cavity.

And the upper die cover is internally provided with a vertical inner rod, the inner rod integrally penetrates through the upper die cover and correspondingly penetrates through the inner water storage cavity, an inner hole matched with the inner rod is formed in the upper die cover, the inner rod is installed in the inner hole from top to bottom, and the lower end part of the inner rod is flush with the lower end surface of the upper die cover.

Preferably, a lifting plate is further arranged above the upper die cover, the upper ends of the inner rods are correspondingly arranged on the lifting plate, and a lifting mechanism is correspondingly arranged above the lifting plate to drive the inner rods inside the upper die cover to move up and down.

Preferably, the lower end of the inner rod is provided with a chamfer, and the lower end of the inner hole is provided with a corresponding shrinking portion, and the lower end of the inner rod is pressed against the shrinking portion after moving downwards in the inner hole, so that the lower end face of the inner rod is flush with the lower end face of the upper die cover.

Preferably, the inner rods are uniformly arranged in the middle of the upper die cover; the inner rod is uniformly arranged, so that the cooling uniformity of products in the die cavity is facilitated.

Preferably, the lower die, the upper die cover and the inner rod are all made of iron materials; the heat dissipation performance of the iron material is good.

Preferably, a waterproof pad is further arranged on the inner wall of the inner hole; in order to prevent water leakage, a waterproof pad can be arranged on the wall of the inner hole.

The beneficial effects are that: the utility model has the following beneficial effects:

(1) The water storage cavity is arranged in the upper die cover, the water storage cavity is connected with the water cooling circulating pump, and after injection molding liquid is injected into the die cavity, the temperature of the integral die can be cooled through cold water in the water storage cavity, so that the production efficiency is improved;

(2) Through the cooperation of water storage chamber, interior pole and elevating system that sets up in this device, can utilize the lift of interior pole after the general solidification of inside die cavity product for the cold water in water storage chamber can be direct with the product contact in the die cavity, thereby can effectually reduce the temperature of inside injection molding product, reach the purpose that promotes product productivity.

Drawings

Fig. 1 is a structural diagram of the present utility model.

Detailed Description

The utility model will be further illustrated by the following drawings and specific examples, which are carried out on the basis of the technical solutions of the utility model, it being understood that these examples are only intended to illustrate the utility model and are not intended to limit the scope of the utility model.

As shown in fig. 1, an injection mold comprises a lower mold 1 and an upper mold cover 2 which is positioned above the lower mold 1 and is matched with the lower mold 1, wherein a mold cavity 3 is arranged in the lower mold 1, and the shape and structure of the mold cavity 3 are consistent with those of a product to be injected; the lifting mechanism 4 is arranged above the upper die cover 2, a water storage cavity 5 is further arranged inside the upper die cover 2, cooling water is stored in the water storage cavity 5, and the water storage cavity 5 is further externally connected with a water cooling circulating pump 6.

And the inside vertical interior pole 7 of still installing of last mould lid 2, interior pole 7 wholly run through mould lid 2, also corresponding inside water storage chamber 5 that runs through, go up mould lid 2 inside be provided with interior pole 7 complex hole 8, interior pole 7 from top to bottom installs in hole 8 and interior pole 7 lower tip flushes with the lower terminal surface of last mould lid 2.

The upper part of the upper die cover 2 is also provided with a lifting plate 9, the upper ends of the inner rods 7 are respectively correspondingly arranged on the lifting plate 9, and the lifting mechanism 4 is correspondingly arranged above the lifting plate 9 to drive the inner rods 7 in the upper die cover 2 to move up and down.

The lower end of the inner rod 7 is provided with a chamfer 10, while the lower end of the inner bore 8 is provided with a corresponding countersunk portion 11, and the lower end of the inner rod 7 is pressed against the countersunk portion 11 after being moved down in the inner bore 8, so that the lower end surface of the inner rod 7 is flush with the lower end surface of the upper die cover 2.

The inner rods 7 are uniformly arranged in the middle of the upper die cover 2; the lower die 1, the upper die cover 2 and the inner rod 7 are all made of iron materials; a waterproof pad 12 is also arranged on the inner wall of the inner hole 8.

The working process of the device is as follows: when in injection molding, the upper lifting mechanism drives the upper die cover to be tightly covered on the lower die, and then the lifting mechanism controls the lifting plate to move downwards, so that the chamfer of the lower end part of the inner rod is tightly pressed on the inner shrinking part, and the lower end part of the inner rod is correspondingly flush with the lower end surface of the upper die cover.

Then, injection molding liquid is fed into a mold cavity of a lower mold through an injection molding hole, and the technical scheme is not described in detail in the device because the injection molding hole which is required to be arranged in the injection mold and communicated with the mold cavity is of conventional design; after the injection molding liquid is filled into the integral mold cavity, cold water circulation is carried out in the water storage cavity above the injection molding liquid through the water cooling circulating pump, the temperature of the integral mold is reduced, after the injection molding liquid in the mold cavity is generally solidified, the lifting plate is controlled to lift, the inner rod is driven to move upwards, so that the inner rod is separated from the solidified injection molding liquid on the inner side, and the injection molding liquid is generally solidified at the moment, so that the injection molding is not influenced.

After the lower end of the inner rod is separated from the water storage cavity, the inner rod is moved upwards, and at the moment, water in the water storage cavity is in direct contact with injection molding products inside the mold cavity downwards along the inner hole, so that heat of the injection molding products inside the mold cavity can be quickly absorbed, and the cooling efficiency is effectively improved through water cooling circulation of the water cooling circulation pump, and the production efficiency of products is accelerated.

The above detailed description is only a preferred embodiment of the present utility model and is not intended to limit the scope of the claims, but all equivalent changes and modifications that can be made according to the protection scope of the claims are included in the scope of the claims.

Claims

1. An injection mold, characterized in that: the injection molding machine comprises a lower die (1) and an upper die cover (2) which is positioned above the lower die (1) and matched with the lower die (1), wherein a die cavity (3) is arranged in the lower die (1), and the shape and structure of the die cavity (3) are consistent with those of a product to be injection molded; a lifting mechanism (4) is arranged above the upper die cover (2), a water storage cavity (5) is further arranged in the upper die cover (2), cooling water is stored in the water storage cavity (5), and a water cooling circulating pump (6) is further connected to the outside of the water storage cavity (5);

and go up mould lid (2) inside still install vertical interior pole (7), interior pole (7) wholly run through mould lid (2), also corresponding water storage chamber (5) that run through inside, go up mould lid (2) inside be provided with interior pole (7) complex hole (8), interior pole (7) from top to bottom install in hole (8) and interior pole (7) lower tip flushes with the lower terminal surface of last mould lid (2).

2. An injection mold according to claim 1, wherein: the upper die cover is characterized in that a lifting plate (9) is further arranged above the upper die cover (2), the upper ends of the inner rods (7) are correspondingly arranged on the lifting plate (9), and lifting mechanisms (4) are correspondingly arranged above the lifting plate (9) to drive the inner rods (7) inside the upper die cover (2) to move up and down.

3. An injection mold according to claim 1, wherein: the lower end part of the inner rod (7) is provided with a chamfer (10), the lower end part of the inner hole (8) is provided with a corresponding inward shrinking part (11), and the lower end part of the inner rod (7) is pressed on the inward shrinking part (11) after moving downwards in the inner hole (8) so that the lower end surface of the inner rod (7) is flush with the lower end surface of the upper die cover (2).

4. An injection mold according to claim 3, wherein: the inner rods (7) are uniformly arranged in the middle of the upper die cover (2).

5. An injection mold according to claim 1, wherein: the lower die (1), the upper die cover (2) and the inner rod (7) are all made of iron materials.

6. An injection mold according to claim 3, wherein: the inner wall of the inner hole (8) is also provided with a waterproof pad (12).