CN214294197U - Injection mold with hole fan-shaped pouring gate - Google Patents
Injection mold with hole fan-shaped pouring gate Download PDFInfo
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- CN214294197U CN214294197U CN202022877541.6U CN202022877541U CN214294197U CN 214294197 U CN214294197 U CN 214294197U CN 202022877541 U CN202022877541 U CN 202022877541U CN 214294197 U CN214294197 U CN 214294197U
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- fan
- gate
- injection mold
- mould benevolence
- runner
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Abstract
The utility model provides an injection mold of foraminiferous fan gate, including front mould benevolence, back mould benevolence and runner thimble, back mould benevolence upper end is equipped with two shaping grooves, back mould benevolence is located two the inboard in shaping groove is equipped with two fan gates, two fan gate is through a runner intercommunication, the runner thimble is located the lower extreme of runner, the back mould benevolence is located two the middle part of fan gate is equipped with protruding mechanism respectively. Above-mentioned injection mold of foraminiferous fan gate sets up protruding mechanism through the middle part that back mould benevolence is located two fan gates, plays and stops the gluey material stream that the runner forward was rushed into, lets gluey material stream after being stopped the back both sides reposition of redundant personnel about, can avoid producing the defect.
Description
Technical Field
The utility model relates to an injection mold technical field, in particular to injection mold of fan-shaped runner in foraminiferous.
Background
The common rubber part is a plate type rubber part, the rubber part has certain flatness requirement, the upper surface of the rubber part is an important appearance surface, and the defects of cold glue, air lines, jet lines and the like can not occur. The rubber is fed in a fan-shaped gate mode, and the rubber which is punched from the main runner to the transverse runner is filled into the rubber part cavity in a fan-shaped spreading mode.
The existing filling mode has the advantages that the connecting position of the fan-shaped pouring gate and the rubber part is wider than that of a common side pouring gate, so that material flow is smoother, and pressure drop is smaller. So that the deformation of the rubber piece is small. The glue material is flushed from the transverse flow channel to the position of the fan-shaped gate, the flow section is widened, and the material flow shearing speed is reasonably slowed down and the glue material is more uniformly filled into the glue piece.
However, the fan gate has a certain defect that the appearance surface has the risk of cold glue, air lines or spray lines. When the rubber material is rushed into the fan-shaped gate from the transverse flow channel, the rubber material in the middle still can be rushed in a positive direction corresponding to the transverse flow channel. The forward direction of the sizing material is still relatively fast and rushes foremost. The relative speed of the left and right oblique sizing materials is slightly slower, the sizing materials expand towards two sides simultaneously, and the material flow is slower than that of the forward sizing material. This can result in the upper surface of the piece having cold glue, air lines or spray lines in the area corresponding to the middle of the fan gate.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an injection mold of foraminiferous fan gate to the injection mold who solves current fan gate has the problem of cold glue, gas line or the defect of spraying the line.
The utility model provides an injection mold of foraminiferous fan gate, including front mould benevolence, back mould benevolence and runner thimble, back mould benevolence upper end is equipped with two shaping grooves, back mould benevolence is located two the inboard in shaping groove is equipped with two fan gates, two fan gate is through a runner intercommunication, the runner thimble is located the lower extreme of runner, the back mould benevolence is located two the middle part of fan gate is equipped with protruding mechanism respectively.
Above-mentioned injection mold of foraminiferous fan gate sets up protruding mechanism through the middle part that back mould benevolence is located two fan gates, plays and stops the gluey material stream that the runner forward was rushed into, lets gluey material stream after being stopped the back both sides reposition of redundant personnel about, can avoid producing the defect.
Furthermore, the protrusion mechanism comprises two insert pins, and the insert pins penetrate through the lower end of the rear mold core and extend to the middle of the corresponding sector gate.
Furthermore, the upper end of the insert pin is flush with the upper end of the rear mold core.
Further, the cross-section of the insert pin is circular in shape.
Furthermore, the insert pin comprises a limiting part and an extending part arranged at the upper end of the limiting part, and the extending part penetrates through the rear mold core and extends to the middle part of the corresponding fan-shaped sprue.
Further, the protrusion mechanism comprises two protrusions, and the two protrusions are located in the middle of the corresponding sector gate.
Drawings
FIG. 1 is a schematic sectional view of an injection mold with a fan gate according to a first embodiment of the present invention;
FIG. 2 is a schematic perspective view of a rear mold core of the injection mold with a fan gate of FIG. 1;
fig. 3 is a schematic sectional view of an injection mold with a fan gate according to a second embodiment of the present invention.
Description of the main element symbols:
| |
10 | |
23 | |
42 |
| |
20 | Runner |
30 | Bump | 50 |
| Forming |
21 | |
40 | ||
| Fan-shaped |
22 | Limiting |
41 |
The following detailed description of the invention will be further described in conjunction with the above-identified drawings.
Detailed Description
In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. Several embodiments of the invention are given in the accompanying drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Referring to fig. 1 and 2, a first embodiment of the present invention provides an injection mold with a fan-shaped gate having a hole, including a front mold core 10, a rear mold core 20 and a runner thimble 30, wherein the upper end of the rear mold core 20 is provided with two forming grooves 21, two fan-shaped gates 22 are disposed on the inner sides of the two forming grooves 21 of the rear mold core 20, the two fan-shaped gates 22 are communicated with each other through a runner 23, the runner thimble 30 is disposed at the lower end of the runner 23, and a protruding mechanism is disposed at the middle portion of the two fan-shaped gates 22 of the rear mold core 20, specifically, the protruding mechanism includes two insert pins 40, and the insert pins 40 pass through the lower end of the rear mold core 20 and extend to the middle portion of the corresponding fan-shaped gates 22.
Above-mentioned injection mold of foraminiferous fan gate sets up the insert needle through the middle part that back mould benevolence 20 is located two fan gates 22, plays and stops the gluey material stream that the runner forward was rushed into, lets gluey material stream after being stopped the back both sides reposition of redundant personnel about, can avoid producing the defect.
Specifically, in the present embodiment, the upper end of the insert pin 40 is flush with the upper end of the rear mold core 20, so as to avoid interference with the assembly of the front mold core 10 and the rear mold core 20.
Specifically, in the present embodiment, the cross section of the insert pin 40 is circular, so that the guiding effect is smoother, and excessive fluctuation of the glue flow is avoided.
Specifically, in the present embodiment, the insert pin 40 includes a limiting portion 41 and an extending portion 42 disposed at an upper end of the limiting portion 41, and the extending portion 42 penetrates through the rear mold core 20 and extends to a middle portion of the corresponding sector gate 22, so as to facilitate the removal and installation of the insert pin 40, and further facilitate the replacement of the insert pin 40.
Referring to fig. 3, a difference between the second embodiment and the first embodiment of the injection mold with a fan-shaped gate of the present invention is that in the second embodiment, the protrusion mechanism includes two protrusions 50, and the two protrusions 50 are located in the middle of the corresponding fan-shaped gate 22 to block the glue flow rushing forward from the runner, so that the glue flow is divided into left and right sides after being blocked, thereby avoiding defects.
The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (6)
1. The utility model provides an injection mold of foraminiferous fan gate, includes front mould benevolence, back mould benevolence and runner thimble, back mould benevolence upper end is equipped with two shaping grooves, back mould benevolence is located two the inboard in shaping groove is equipped with two fan gates, two fan gate is through a runner intercommunication, the runner thimble is located the lower extreme of runner, its characterized in that, back mould benevolence is located two fan gate's middle part is equipped with protruding mechanism respectively.
2. The injection mold with a fan gate according to claim 1, wherein the protrusion mechanism comprises two pins passing through the lower end of the rear mold core and extending to the middle of the corresponding fan gate.
3. The injection mold with a hole sector gate of claim 2, wherein the upper end of the insert pin is flush with the upper end of the back mold core.
4. The injection mold with a fan gate as claimed in claim 2, wherein the insert pin has a circular cross-sectional shape.
5. The injection mold with a fan-shaped gate according to claim 2, wherein the insert pin comprises a position-limiting portion and an extending portion disposed at an upper end of the position-limiting portion, and the extending portion passes through the rear mold core and extends to a middle portion of the corresponding fan-shaped gate.
6. The injection mold with sector gate according to claim 1, wherein the protrusion means comprises two protrusions, and the two protrusions are located at the middle of the corresponding sector gate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022877541.6U CN214294197U (en) | 2020-12-05 | 2020-12-05 | Injection mold with hole fan-shaped pouring gate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022877541.6U CN214294197U (en) | 2020-12-05 | 2020-12-05 | Injection mold with hole fan-shaped pouring gate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214294197U true CN214294197U (en) | 2021-09-28 |
Family
ID=77846110
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022877541.6U Active CN214294197U (en) | 2020-12-05 | 2020-12-05 | Injection mold with hole fan-shaped pouring gate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214294197U (en) |
-
2020
- 2020-12-05 CN CN202022877541.6U patent/CN214294197U/en active Active
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