CN218488980U

CN218488980U - Injection mould

Info

Publication number: CN218488980U
Application number: CN202222779381.0U
Authority: CN
Inventors: 刘辉煌; 赫灵川
Original assignee: Dongguan Yutong Optical Technology Co Ltd
Current assignee: Dongguan Yutong Optical Technology Co Ltd
Priority date: 2022-10-21
Filing date: 2022-10-21
Publication date: 2023-02-17
Anticipated expiration: 2032-10-21

Abstract

The utility model belongs to the technical field of injection molding and discloses an injection mold, which comprises a mold body and an injection runner arranged in the mold body, wherein the mold body comprises a conformal cooling water circuit group and a plurality of molding cavities; wherein, treat the injection moulding product in one of every shaping chamber homoenergetic shaping, every shaping chamber all sets up with the runner intercommunication of moulding plastics, and the type cooling water route group includes a plurality of cooling water routes of following, and a plurality of cooling water routes of following enclose synthetic cooling area, and at least part is moulded plastics the runner and is arranged in cooling area. The utility model provides an injection mold, the retinue cooling water route is evenly arranged near the runner of moulding plastics to cool off to the key region of the runner of moulding plastics, promote the cooling effect, effectively guarantee the uniformity that the liquid of moulding plastics flows in the runner of moulding plastics, and then make the speed of pouring keep unanimous, improve and treat injection moulding product quality, guarantee to treat the uniformity of injection moulding product quality.

Description

Injection mould

Technical Field

The utility model relates to an injection mold makes technical field, especially relates to an injection mold.

Background

In the current injection mold manufacturing, the cooling water path is a very important position in the injection mold structure, and is the key for improving the quality of injection products and improving the injection molding efficiency. Traditional cooling water route design all adopts traditional design mode anyhow, when a plurality of products of moulding plastics simultaneously, and the cooling effect is poor, leads to each runner velocity of flow inequality of each shaping chamber of flowing through, and still can't guarantee that the liquid temperature of moulding plastics of each shaping chamber part of flowing through is the same, and then makes the quality of goods differ. In addition, some of the molding cavities are filled with too much molding liquid, causing interference or flash.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an injection mold through cooling down the cooling along with type cooling water route, promotes the cooling effect, can effectively improve the goods quality, guarantees the uniformity of goods quality, and can avoid the condition that the die cavity filled too much injection molding liquid to take place.

To achieve the purpose, the utility model adopts the following technical proposal:

the injection mold comprises a mold body and an injection runner arranged in the mold body, wherein the mold body comprises a conformal cooling water circuit group and a plurality of molding cavities; wherein, the first and the second end of the pipe are connected with each other,

each forming cavity can form a product to be injection molded;

each molding cavity is communicated with the injection molding runner;

the conformal cooling water channel group comprises a plurality of conformal cooling water channels which jointly enclose a cooling area, and at least part of the injection molding flow channel is arranged in the cooling area.

Optionally, the injection molding runner comprises a pouring runner and a plurality of flow distribution parts communicated with the pouring runner, the flow distribution parts are arranged in a one-to-one correspondence manner along the height direction of the mold body and the molding cavities, and each flow distribution part is communicated with a plurality of end runners communicated with the molding cavities.

Optionally, the flow dividing parts are arranged in pairs, two of the flow dividing parts arranged in pairs are communicated with each other through a first transition flow channel, and the first transition flow channel is communicated with the pouring flow channel through a second transition flow channel.

Optionally, the flow splitter portion and the first transition flow passage are both disposed within the cooling region.

Optionally, the mold body includes a first mold plate and a second mold plate, an installation cavity is formed between the first mold plate and the second mold plate, and the flow dividing portion, the first transition flow channel, and the second transition flow channel are all disposed in the installation cavity.

Optionally, the second transition flow channel includes a plurality of first flow channel segments disposed in the first mold plate and a plurality of second flow channel segments disposed in the second mold plate, and the first flow channel segments and the second flow channel segments are alternately disposed in communication.

Optionally, the flow dividing portion includes a plurality of flow dividing branches disposed in the first mold plate, and each of the flow dividing branches is communicated with one of the end runners.

Optionally, each of the branch lines is provided with a connecting portion extending into the second mold plate, and the connecting portion is arranged along the height direction of the mold body and corresponds to the end runner.

Optionally, the intersection of the plurality of branch lines is communicated with the first transition flow channel, the branch lines are disposed in the first mold plate, and the first transition flow channel is disposed in the second mold plate.

Optionally, the conformal cooling water circuit group includes:

the two first conformal cooling water paths are symmetrically arranged on the first template;

the second conformal cooling water channels are symmetrically arranged on the second template, and are arranged in a one-to-one correspondence manner with the first conformal cooling water channels along the height direction of the die body.

The utility model has the advantages that:

the utility model provides an injection mold, a plurality of retinue cooling water routes enclose synthetic cooling area, at least part is moulded plastics the runner and is arranged in the cooling area, so that retinue cooling water route evenly arranges near the runner of moulding plastics, and cool off to the key region of the runner of moulding plastics, promote the cooling effect, effectively guarantee the uniformity that the liquid of moulding plastics flows in the runner of moulding plastics, and then make the speed of pouring keep unanimous, the injection moulding product quality is treated in the improvement, guarantee to treat the uniformity of injection moulding product quality, and effectively avoid the shaping chamber to fill too much injection moulding liquid and cause the condition of treating injection moulding product interference or overlap to take place.

Drawings

Fig. 1 is a schematic structural diagram of an injection mold provided by the present invention;

fig. 2 is a cross-sectional view of a first form provided by the present invention;

fig. 3 is a cross-sectional view of a second form provided by the present invention;

fig. 4 is a schematic view of an injection molding runner according to the present invention;

fig. 5 is a schematic view of another perspective structure of the injection runner provided by the present invention;

fig. 6 is a schematic structural diagram of a first mold plate of an injection molding runner provided by the present invention;

fig. 7 is a schematic structural diagram of a second mold plate of the injection molding runner provided by the present invention.

In the figure:

100. a mold body; 101. a first template; 102. a second template; 111. a first conformal cooling water channel; 112. a second conformal cooling water channel; 120. a molding cavity;

200. injection molding a runner; 210. pouring a flow channel; 220. a flow dividing section; 221. a shunt branch; 222. a connecting portion; 230. a terminal flow channel; 240. a first transition flow path; 250. a second transition flow path; 251. a first flow path segment; 252. a second flow path segment;

300. and connecting the pipelines.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures associated with the present invention are shown in the drawings, not all of them.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integral to one another; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or may be connected through the use of two elements or the interaction of two elements. The specific meaning of the above terms in the present invention can be understood as a specific case by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the recitation of a first feature "on" or "under" a second feature may include the recitation of the first and second features being in direct contact, and may also include the recitation of the first and second features not being in direct contact, but being in contact with another feature between them. Also, the first feature "on," "above" and "over" the second feature may include the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is at a higher level than the second feature. "beneath," "under" and "beneath" a first feature includes the first feature being directly beneath and obliquely beneath the second feature, or simply indicating that the first feature is at a lesser elevation than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "right", etc. are used in an orientation or positional relationship based on that shown in the drawings only for convenience of description and simplicity of operation, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to be limiting.

Referring to fig. 1 to 3, the present embodiment provides an injection mold, including a mold body 100 and an injection runner 200 disposed in the mold body 100, wherein the mold body 100 includes a conformal cooling water path set and a plurality of molding cavities 120; wherein, every becomes one of die cavity 120 homoenergetic and treats injection moulding product, and every becomes die cavity 120 and all sets up with the runner 200 intercommunication that moulds plastics, and the following type cooling water route group includes a plurality of following cooling water routes, and a plurality of following cooling water routes enclose jointly and become cooling area, and at least part runner 200 that moulds plastics arranges cooling area in.

In this embodiment, a plurality of retinue cooling water routes enclose jointly and synthesize the cooling region, at least part runner 200 of moulding plastics arranges in the cooling region, so that retinue cooling water route evenly arranges in the close vicinity of runner 200 of moulding plastics, and cool off to the key area of runner 200 of moulding plastics, promote the cooling effect, effectively guarantee the uniformity that the liquid of moulding plastics flowed in runner 200 of moulding plastics, and then make the speed of pouring keep unanimous, improve and treat injection moulding product quality, guarantee to treat the uniformity of injection moulding product quality, and effectively avoid the circumstances that molding cavity 120 fills too much injection moulding liquid and cause and treat injection moulding product interference or overlap to take place.

The injection mold provided by the embodiment can be applied to injection molding of the lens cone, and can effectively ensure the coaxiality of the lens cone. Of course, the method can also be applied to injection molding of other injection molding products, and is not limited to the method.

In this embodiment, with continued reference to fig. 1, the mold body 100 includes a first mold plate 101 and a second mold plate 102, and the injection runner 200 is disposed between the first mold plate 101 and the second mold plate 102.

In the present embodiment, as shown in fig. 2 to fig. 3, the conformal cooling water path set includes a first conformal cooling water path 111 and a second conformal cooling water path 112, and two first conformal cooling water paths 111 are symmetrically disposed on the first mold plate 101; the second conformal cooling water channels 112 are symmetrically arranged on the second template 102, the second conformal cooling water channels 112 and the first conformal cooling water channels 111 are arranged in a one-to-one correspondence manner along the height direction of the mold body 100, the two first conformal cooling water channels 111 and the two second conformal cooling water channels 112 jointly enclose a cooling area, the first conformal cooling water channels 111 and the second conformal cooling water channels 112 are changed along with the shape bending of the flow dividing part 220 and the first transition flow channel 240, and the flow dividing part 220 and the first transition flow channel 240 are encircled in an omnibearing manner, so that the flowing consistency of injection molding liquid in the injection molding flow channel 200 is ensured.

Specifically, the first and second satellite cooling

water paths

111 and 112 are each connected with a connection pipe 300 to connect cooling equipment.

It is worth mentioning that the first template 101 and the second template 102 are processed by using selective laser melting, 3D printing technology and diffusion welding technology, which has low production cost and is convenient to manufacture.

In this embodiment, referring to fig. 4 to 5, the injection runner 200 includes a casting runner 210 and a plurality of flow dividing portions 220 communicated with the casting runner 210, the flow dividing portions 220 are arranged in one-to-one correspondence with the molding cavities 120 along the height direction of the mold body 100, and each flow dividing portion 220 is communicated with a plurality of end runners 230 communicated with the molding cavities 120. Wherein, the direction a in fig. 1 is the height direction of the mold body 100, and the end runner 230 is extended along the height direction of the mold body 100. In this embodiment, the injection molding liquid is uniformly distributed to the distributing parts 220 through the pouring flow channel 210, and then flows into the molding cavity 120 through the end flow channels 230 communicated with the distributing parts 220, so as to complete injection molding of the product to be injection molded, thereby effectively ensuring that the injection molding liquid is uniformly distributed in the injection molding flow channel 200 and the flow rates in the distributing parts 220 and the end flow channels 230 are the same.

Specifically, the flow dividing parts 220 are arranged in pairs, two flow dividing parts 220 arranged in pairs are communicated with each other through a first transition flow channel 240, and the first transition flow channel 240 is communicated with the pouring flow channel 210 through a second transition flow channel 250, so as to ensure that the injection molding liquid is uniformly divided in the injection molding flow channel 200 and has the same flow rate.

Specifically, the flow dividing part 220 and the first transition flow channel 240 are both disposed in the cooling region, so that the conformal cooling water channel group uniformly cools the flow dividing part 220, the first transition flow channel 240 and a part of the second transition flow channel 250, and the cooling effect is effectively improved. It is worth mentioning that a part of the second transition flow channels 250 is disposed in the cooling region, and another part of the second transition flow channels 250 is disposed outside the cooling region.

Preferably, the molding cavities 120 are arranged at four intervals along the length direction of the mold body 100, and four corresponding flow dividing portions 220 are arranged, and two of the molding cavities are arranged in pairs. Wherein, the direction b in fig. 1 is the longitudinal direction of the die body 100.

In the present embodiment, referring to fig. 4 to 7, the flow dividing portions 220 have the same shape, the first transition flow passages 240 have the same shape, and the second transition flow passages 250 have the same shape, so as to avoid a cooling time difference, and ensure the consistency of the flow of the injection liquid in the injection flow passage 200.

Specifically, an installation cavity is formed between the first template 101 and the second template 102, and the flow dividing portion 220, the first transition flow channel 240 and the second transition flow channel 250 are all arranged in the installation cavity, so that opposite surfaces of the first template 101 and the second template 102 are attached to each other, and the first template 101 and the second template 102 have a better cooling effect through the first conformal cooling water channel 111 and the second conformal cooling water channel 112 while the connection stability is increased.

Specifically, the flow dividing portion 220 includes a plurality of flow dividing branches 221 disposed in the first mold plate 101, and each flow dividing branch 221 is communicated with one end flow passage 230. In this embodiment, the design of the branch passage 221 ensures that the injection liquid flowing through the end runner 230 is uniformly distributed and has the same flow rate.

Preferably, the branch paths 221 are linear and intersect at a point, the intersection of the branch paths 221 is communicated with the first transition flow channel 240, and the end flow channel 230 is disposed at an end of the branch path 221 far from the intersection.

Preferably, the first transition flow path 240 is linear and has both ends respectively communicated with the pair of flow dividing portions 220.

It should be noted that the branch passage 221 is disposed in the first mold plate 101, and the first transition flow passage 240 is disposed in the second mold plate 102, so as to enhance the cooling effect.

Further, each branch 221 is provided with a connecting portion 222 extending into the second mold plate 102, the connecting portion 222 is disposed along the height direction of the mold body 100 and corresponds to the terminal runner 230, and after the injection molding is completed, when the first mold plate 101 and the second mold plate 102 are separated, the terminal runner 230 can be separated from the first mold plate 101. In addition, the connecting portion 222 can further improve the cooling effect to ensure the consistency of the injection molding liquid flowing in the injection molding runner 200. In this embodiment, the connection portion 222 may be fixed to the second mold plate 102 by bolts. Specifically, the bolts are inserted through the second template 102 and are threadedly connected to the connection portions 222.

It should be noted that the second transition flow channel 250 includes a plurality of first flow channel segments 251 disposed in the first mold plate 101 and a plurality of second flow channel segments 252 disposed in the second mold plate 102, and the first flow channel segments 251 and the second flow channel segments 252 are alternately communicated to achieve a better cooling effect, thereby ensuring the consistency of the flow of the injection molding liquid in the injection molding flow channel 200.

It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Numerous obvious variations, rearrangements and substitutions will now occur to those skilled in the art without departing from the scope of the invention. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. The injection mold is characterized by comprising a mold body (100) and an injection runner (200) arranged in the mold body (100), wherein the mold body (100) comprises a conformal cooling water circuit group and a plurality of molding cavities (120); wherein the content of the first and second substances,

each forming cavity (120) can form a product to be injection molded;

each molding cavity (120) is communicated with the injection molding runner (200);

the conformal cooling water channel group comprises a plurality of conformal cooling water channels which jointly enclose a cooling area, and at least part of the injection molding flow channel (200) is arranged in the cooling area.

2. The injection mold according to claim 1, wherein the injection runner (200) comprises a pouring runner (210) and a plurality of flow dividing parts (220) communicated with the pouring runner (210), the flow dividing parts (220) are arranged in one-to-one correspondence with the molding cavities (120) along the height direction of the mold body (100), and each flow dividing part (220) is communicated with a plurality of terminal runners (230) communicated with the molding cavities (120).

3. An injection mould according to claim 2, characterized in that the flow-dividing portions (220) are arranged in pairs, two flow-dividing portions (220) arranged in pairs being in communication with each other via a first transition flow channel (240), and the first transition flow channel (240) being arranged in communication with the casting flow channel (210) via a second transition flow channel (250).

4. An injection mold according to claim 3, wherein both the flow divider (220) and the first transition flow channel (240) are disposed within the cooling region.

5. An injection mold according to claim 3, wherein the mold body (100) comprises a first mold plate (101) and a second mold plate (102), a mounting cavity is formed between the first mold plate (101) and the second mold plate (102), and the flow dividing portion (220), the first transition flow channel (240) and the second transition flow channel (250) are all disposed in the mounting cavity.

6. An injection mould according to claim 5, characterized in that the second transition channel (250) comprises a plurality of first channel segments (251) arranged in the first mould plate (101) and a plurality of second channel segments (252) arranged in the second mould plate (102), the first channel segments (251) and the second channel segments (252) being alternately arranged in communication.

7. An injection mould according to claim 5, characterized in that the flow dividing portion (220) comprises a plurality of flow dividing branches (221) arranged in the first mould plate (101), each flow dividing branch (221) being connected to one of the terminal runners (230).

8. An injection mould according to claim 7, characterized in that each of the branch passages (221) is provided with a connecting portion (222) extending into the second mold plate (102), and the connecting portion (222) is arranged corresponding to the terminal runner (230) along the height direction of the mould body (100).

9. An injection mould according to claim 7, characterized in that the intersection of a plurality of said branch channels (221) is arranged in communication with said first transition channel (240), and said branch channels (221) are arranged in said first mold plate (101) and said first transition channel (240) is arranged in said second mold plate (102).

10. The injection mold of claim 5, wherein the conformal cooling water circuit group comprises:

the first conformal cooling water channels (111) are arranged on the first template (101) symmetrically;

the mold comprises a mold body (100), and is characterized in that two second conformal cooling water channels (112) are symmetrically arranged on the second mold plate (102), and the second conformal cooling water channels (112) and the first conformal cooling water channels (111) are arranged in a one-to-one correspondence manner along the height direction of the mold body (100).