CN215396607U - Runner structure and multi-cavity mold of multi-cavity mold - Google Patents
Runner structure and multi-cavity mold of multi-cavity mold Download PDFInfo
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- CN215396607U CN215396607U CN202121668210.XU CN202121668210U CN215396607U CN 215396607 U CN215396607 U CN 215396607U CN 202121668210 U CN202121668210 U CN 202121668210U CN 215396607 U CN215396607 U CN 215396607U
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- 239000000463 material Substances 0.000 claims abstract description 17
- 239000003292 glue Substances 0.000 abstract description 2
- 230000002093 peripheral effect Effects 0.000 abstract description 2
- 239000010410 layer Substances 0.000 description 19
- 238000002347 injection Methods 0.000 description 8
- 239000007924 injection Substances 0.000 description 8
- 238000001746 injection moulding Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000012778 molding material Substances 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
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Abstract
The utility model provides a runner structure of a multi-cavity mold and the multi-cavity mold, wherein the runner structure comprises a main runner, an outer layer runner, an upper layer runner and a lower layer runner, wherein the outer layer runner, the upper layer runner and the lower layer runner are wrapped on the outer periphery side of the lower end of the main runner; the bottom of the main flow channel is communicated with the bottom of the outer layer flow channel; the upper layer flow passage is communicated with the outer layer flow passage; the lower-layer flow channel is communicated with the bottom of the main flow channel through a connecting flow channel; in the runner structure of the multi-cavity die, materials are stacked and distributed at the lower end part of the main runner, one part of the materials enter the connecting runner below the main runner and further flow into the lower runner, and the other part of the materials overflow into the outer-layer runner along the peripheral side of the bottom of the main runner and further flow into the upper runner; the multi-cavity die is simple and reasonable in structural design, materials in the upper flow channel and the lower flow channel can be fed in glue in a balanced mode, and the yield of products is guaranteed.
Description
Technical Field
The utility model relates to the field of injection molds, in particular to a runner structure of a multi-cavity mold and the multi-cavity mold.
Background
Runners in the multi-cavity mold function to distribute the injection molding material.
The application number 200820111726.2 discloses a runner structure in a multi-cavity mold, which comprises a first-stage runner, two second-stage runners, four third-stage runners and thirty-two fourth-stage runners, wherein the first-stage runner, the two second-stage runners, the four third-stage runners and the thirty-two fourth-stage runners are uniformly arranged on two sides of a feed port; the flow channel structure is a single-layer structure, which can make the flow of each level of flow channel uniform to a certain extent, however, the above problems are to be solved by how to make the flow distribution between the upper flow channel and the lower flow channel uniform for the double-layer flow channel structure in the medium-large mold.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects of the background art and provide a double-layer runner structure with uniform flow distribution between an upper runner and a lower runner and a multi-cavity mould.
The embodiment of the utility model is realized by the following technical scheme:
a runner structure of a multi-cavity mold, comprising:
a main runner for injecting a material;
the outer layer flow channel is wrapped on the outer periphery side of the lower end of the main flow channel, and the bottom of the main flow channel is communicated with the bottom of the outer layer flow channel;
the upper layer flow channel is communicated with the outer layer flow channel;
the lower-layer runner is communicated with the bottom of the main runner through a connecting runner.
Further, the connecting flow channel comprises a connecting flow channel body and a small-diameter part arranged on the connecting flow channel body, and the diameter of the small-diameter part is smaller than that of the connecting flow channel body.
Further, the small diameter portion is located in the middle of the connection flow passage, and the diameter of the connection flow passage gradually increases from the small diameter portion to both ends.
Furthermore, a primary flow channel and a plurality of branch flow channels communicated with the primary flow channel are arranged in the upper flow channel and the lower flow channel;
wherein, the first-stage runner in the upper-layer runner is communicated with the outer-layer runner; and the primary flow channel in the lower flow channel is communicated with the lower end part of the connecting flow channel.
Further, the height of the lower end of the main flow channel is lower than that of the upper layer flow channel.
A multi-cavity mold is provided with the runner structure.
The technical scheme of the embodiment of the utility model at least has the following advantages and beneficial effects:
in the runner structure of the multi-cavity die, materials are stacked and distributed at the lower end part of the main runner, one part of the materials enter the connecting runner below the main runner and further flow into the lower runner, and the other part of the materials overflow into the outer-layer runner along the peripheral side of the bottom of the main runner and further flow into the upper runner; the multi-cavity die is simple and reasonable in structural design, materials in the upper flow channel and the lower flow channel can be fed in glue in a balanced mode, and the yield of products is guaranteed.
Drawings
FIG. 1 is a schematic structural view of a multi-cavity mold of the present invention;
FIG. 2 is a schematic view of the internal structure of the multi-cavity mold of the present invention with the upper cavity plate removed;
FIG. 3 is a cross-sectional view of the multi-cavity mold of FIG. 2;
FIG. 4 is a schematic view of a runner structure of the multi-cavity mold of the present invention;
fig. 5 is a schematic structural view of a flow channel in the present invention.
Icon: 10-flow channel, 100-main flow channel, 110-upper flow channel, 120-connecting flow channel, 130-lower flow channel, 140-outer flow channel, 20-multi-cavity mold and 200-material injection pipe.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Referring to fig. 1 to 5, the present invention provides a runner 10 structure of a multi-cavity mold and a multi-cavity mold 20 having the same.
The runner 10 is opened in the multi-cavity mold 20, and the runner 10 includes a main runner 100, an upper runner 110, a connecting runner 120, a lower runner 130, and an outer runner 140.
The main runner 100 is used for injecting materials, referring to fig. 1, an injection pipe 200 is disposed on an upper cavity plate of the multi-cavity mold 20, an inner cavity of the injection pipe 200 is the main runner 100, and materials for injection molding enter the runner 10 through the injection pipe 200.
The outer layer runner 140 is wrapped on the outer periphery side of the lower end of the main runner 100, and the bottom of the main runner 100 is communicated with the bottom of the outer layer runner 140; specifically, the outer periphery of the lower end of the main runner 100 is isolated from the outer runner 140 by the wall of the injection pipe 200, and the injected material needs to overflow to the outer periphery through the bottom of the injection pipe 200 to enter the outer runner 140.
The upper layer flow channel 110 is communicated with the outer layer flow channel 140, specifically, a group of first-stage flow channels and a plurality of branch flow channels are arranged in the upper layer flow channel 110, the first-stage flow channels in the upper layer flow channel 110 are communicated with the outer layer flow channel 140, the branch flow channels are communicated with two ends of the first-stage flow channels, and materials enter the first-stage flow channels through the outer layer flow channel 140 and then enter the branch flow channels in sequence.
The lower runner 130 is arranged below the upper runner 110, a group of primary runners and a plurality of branch runners are also arranged in the lower runner 130, the primary runners in the lower runner 130 are communicated with the lower end part of the connecting runner 120, the branch runners are communicated with two ends of the primary runners, and the lower runner 130 is communicated with the bottom of the main runner 100 through the connecting runner 120; the material enters the connecting channel 120 through the main channel 100, then enters the primary channel, and finally enters each branch channel in sequence.
In addition, the connection flow channel 120 includes a connection flow channel body and a small diameter portion provided on the connection flow channel body, the diameter of the small diameter portion being smaller than that of the connection flow channel body; more specifically, in the present embodiment, the small diameter portion is located in the middle of the connection flow passage 120, and the diameter of the connection flow passage 120 gradually increases from the small diameter portion to both ends; the purpose of the small diameter part is to reduce the accumulation of materials in the connecting flow passage 120, and the product is convenient to separate the cavity plates in the mold after being cooled and shaped.
The height of the lower end of the main flow channel 100 is preferably not higher than the height of the upper flow channel 110, and in this embodiment, the height of the lower end of the main flow channel 100 is lower than the height of the upper flow channel 110.
Referring to fig. 1 and 2, the present invention also provides a multi-cavity mold 20 having the runner 10 structure as described above provided therein, wherein an injection molded tube 200 forming a main runner 100 is provided on an upper cavity plate of the multi-cavity mold 20.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. A runner structure of a multi-cavity mold, comprising:
a primary runner (100), the primary runner (100) for injecting a material;
an outer layer runner (140) surrounding the outer periphery side of the lower end of the main runner (100), wherein the bottom of the main runner (100) is communicated with the bottom of the outer layer runner (140);
an upper flow channel (110), the upper flow channel (110) being in communication with the outer layer flow channel (140);
the lower-layer runner (130) is communicated with the bottom of the main runner (100) through a connecting runner (120).
2. The runner structure of a multi-cavity mold according to claim 1, wherein: the connecting flow channel (120) comprises a connecting flow channel body and a small-diameter part arranged on the connecting flow channel body, and the diameter of the small-diameter part is smaller than that of the connecting flow channel body.
3. The runner structure of a multi-cavity mold according to claim 2, wherein: the small diameter part is positioned in the middle of the connecting flow passage (120), and the diameter of the connecting flow passage (120) is gradually enlarged from the small diameter part to two ends.
4. A runner structure of a multi-cavity mold according to any one of claims 1 to 3, wherein: a primary flow channel and a plurality of branch flow channels communicated with the primary flow channel are arranged in the upper flow channel (110) and the lower flow channel (130);
wherein, the first-stage flow channel in the upper-layer flow channel (110) is communicated with the outer-layer flow channel (140); the first-stage flow channel in the lower-layer flow channel (130) is communicated with the lower end part of the connecting flow channel (120).
5. The runner structure of a multi-cavity mold according to claim 1, wherein: the height of the lower end of the main flow channel (100) is lower than the height of the upper flow channel (110).
6. A multi-cavity mold, comprising: the runner structure according to any one of claims 1 to 5 is provided in the multi-cavity mold.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121668210.XU CN215396607U (en) | 2021-07-21 | 2021-07-21 | Runner structure and multi-cavity mold of multi-cavity mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121668210.XU CN215396607U (en) | 2021-07-21 | 2021-07-21 | Runner structure and multi-cavity mold of multi-cavity mold |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215396607U true CN215396607U (en) | 2022-01-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121668210.XU Active CN215396607U (en) | 2021-07-21 | 2021-07-21 | Runner structure and multi-cavity mold of multi-cavity mold |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215396607U (en) |
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2021
- 2021-07-21 CN CN202121668210.XU patent/CN215396607U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 611230 north section of Hongye Road, Chongzhou Economic Development Zone, Chengdu, Sichuan Patentee after: Kangtai Plastic Technology Co.,Ltd. Address before: 611230 no.1236, north section of Hongye Avenue, Chongzhou Economic Development Zone, Chengdu, Sichuan Patentee before: Kangtai Plastic Technology Group Co.,Ltd. |
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| CP03 | Change of name, title or address |