CN212400158U - Injection mold for automotive interior parts - Google Patents
Injection mold for automotive interior parts Download PDFInfo
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- CN212400158U CN212400158U CN201922249388.XU CN201922249388U CN212400158U CN 212400158 U CN212400158 U CN 212400158U CN 201922249388 U CN201922249388 U CN 201922249388U CN 212400158 U CN212400158 U CN 212400158U
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Abstract
The utility model discloses an automotive interior spare injection mold, include movable mould and the cover half of being connected through guide pillar and guide pin bushing, be equipped with two cavities in the mould, the cover half core is fixed on the fixed die plate, the fixed die plate is fixed on the cover half fixed plate, the movable mould core is fixed on the movable mould board, the fixed cushion that is equipped with between movable mould board and the movable mould fixed plate, push rod one end is passed the movable mould board and is connected with the movable mould core, the push rod other end is fixed on the push rod fixed plate, the push rod fixed plate is fixed in the push pedal top, the push pedal passes through the ejector pin connector and links to each other with the ejector pin of locating on the movable mould fixed plate, the hot nozzle is located in the cover half fixed plate and is connected with the sprue, reposition of redundant personnel reposition of redundant. The pressure loss is reduced, the fluidity is improved, the waste material of the flow channel is reduced, and the flow balance can be improved.
Description
Technical Field
The utility model relates to an injection mold field, in particular to automotive interior spare injection mold.
Background
The automotive interior part is an important component of an automotive structure, the touch, hand feeling, comfort and ornamental value of the product are emphasized, the automotive instrument, the inner door plate and other interior parts are also important functional parts of the automobile, and the instrument, the door lock and other parts need to be installed, and the injection molding is generally adopted. Due to the complex structure shape and high surface quality requirement, the difficulty is brought to the mold design and the molding process.
In injection molding production, in order to save the mold cost and improve the production efficiency, different plastic cavities are often designed on the same pair of molds to form a combined cavity injection mold. In the molding process, because the volumes and the mechanisms of different plastic part cavities are different, the flow imbalance and the cooling imbalance in plastic melt filling are easily caused, and the injection molding quality problems such as material shortage, flash, overlarge deformation and the like are caused.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to provide an automotive interior spare injection mold, through improving pouring and cooling system, improved the injection mold quality of combination die cavity.
In order to solve the technical problem, the utility model discloses a technical scheme does:
an injection mold for automotive interiors comprises a fixed mold fixing plate, a fixed mold core, a movable mold plate, a movable mold fixing plate, a guide hole, a guide sleeve, a push rod, a guide pillar, a push rod fixing plate, a cushion block, a push plate, a hot nozzle, a main runner, a sub-runner, a pouring gate and a main runner cooling well, wherein the guide hole is formed in the lower surface of the fixed mold plate, the guide sleeve is arranged in the guide hole, the guide pillar is arranged on the upper surface of the movable mold frame, the guide pillar and the guide hole are correspondingly arranged, the fixed mold core is fixed on the fixed mold plate, the fixed mold plate is fixed on the fixed mold fixing plate, the movable mold core is fixed on the movable mold plate, the cushion block is arranged between the movable mold plate and the movable mold fixing plate, one end of the push rod, the push rod fixed plate is fixed push plate top, the push plate passes through the ejector pin connector and links to each other with the ejector pin of locating on the movable mould fixed plate, the cover half core is two cavities, is left die cavity and right die cavity respectively, hot mouth is located be connected with the sprue in the cover half fixed plate, the sprue is connected with two subchannels and sprue cooling well, the subchannel passes through the runner and is connected with the cavity, fan-shaped runner is adopted to the runner, the subchannel adopts S-shaped and cross section is trapezoidal.
Preferably, the shape of the main runner cooling well is an inverted cone.
Preferably, a water inlet is formed in one side of the fixed die core and one side of the movable die core, a water outlet is formed in the other side of the fixed die core and the movable die core, a plurality of through cooling water pipelines are arranged inside the fixed die core and the movable die core side by side, and the axes of the cooling water pipelines are parallel to the axis of the left die cavity.
Preferably, the number of the cooling water pipelines in the fixed model core is 11, and the number of the cooling water pipelines in the movable model core is 12.
Preferably, the diameter of the cooling water pipeline is 10mm, and the distance from the center of the cooling water pipeline to the cavity is 15 mm.
Preferably, a supporting column is further arranged between the movable mold plate and the movable mold fixing plate, through holes are formed in the push plate and the push rod fixing plate, one end of the supporting column is fixed on the movable mold fixing plate, and the other end of the supporting column penetrates through the through holes and extends to the movable mold plate.
The utility model discloses automotive interior spare injection mold is the combination die cavity of left die cavity and right die cavity, and the sprue adopts open hot runner nozzle, reduces loss of pressure, improves mobility to reduce the runner waste material. The sub-runners are S-shaped, so that the flow balance can be improved, the overall structural size of the die can be reduced, and the cross sections of the sub-runners are trapezoidal.
Drawings
FIG. 1 is a schematic structural view of an injection mold for automotive upholstery according to the present invention;
FIG. 2 is a schematic structural view of a runner in the injection mold for automotive upholstery of the present invention;
FIG. 3 is a schematic structural view of a cooling device in the injection mold for automotive upholstery of the present invention;
in the figure, 11-fixed die fixing plate, 12-fixed die plate, 13-fixed die core, 21-movable die core, 22-movable die plate, 23-movable die fixing plate, 31-guide hole, 32-guide sleeve, 33-guide post, 41-push rod, 42-push rod fixing plate, 43-push plate, 44-cushion block, 45-support column, 51-hot nozzle, 52-main runner, 53-sub runner, 54-main runner cooling well, 61-left die cavity, 62-right die cavity, 71-water inlet, 72-water outlet and 73-cooling water pipeline.
Detailed Description
The following describes the present invention with reference to the accompanying drawings. It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto. In addition, the technical features related to the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
As shown in fig. 1 to 3, an injection mold for automotive interiors includes a fixed mold fixing plate 11, a fixed mold plate 12, a fixed mold core 13, a movable mold core 21, a movable mold plate 22, a movable mold fixing plate 23, a guide hole 31, a guide sleeve 32, a guide pillar 33, a push rod 41, a push rod fixing plate 42, a push plate 43, a cushion block 44, a hot nozzle 51, a main runner 52, a runner 53, a gate (not shown) and a main runner cooling well 54, wherein the guide hole 31 is formed in the lower surface of the fixed mold plate 12, the guide sleeve 32 is arranged in the guide hole 31, the guide pillar 33 is arranged on the upper surface of the movable mold frame, the guide pillar 33 is arranged corresponding to the guide hole 31, the fixed mold core 13 is fixed on the fixed mold plate 12, the fixed mold plate 12 is fixed on the fixed mold fixing plate 11, the movable mold core 21 is fixed on the movable mold plate 22, and a cushion block 44, push rod 41 one end is passed movable mould board 22 with movable mould core 21 is connected, the push rod 41 other end is fixed on the push rod fixed plate 42, and push rod fixed plate 42 is fixed push plate 43 top, push plate 43 passes through the ejector pin connector and links to each other with the ejector pin of locating on the movable mould fixed plate 23, cover half core 13 is two cavities, is left die cavity 61 and right die cavity 62 respectively, hot nozzle 51 locates be connected with sprue 52 in the cover half fixed plate 11, sprue 52 is connected with two subchannel 53 and sprue cooling well 54, subchannel 53 passes through the runner and is connected with the cavity, the runner adopts fan-shaped runner, subchannel 53 adopts S-shaped and cross section to be trapezoidal. The spacer 44 forms an actuating space of the ejector structure between the movable die plate 22 and the movable die fixing plate 23.
The main flow channel 52 uses an open hot runner nozzle to reduce pressure loss, improve flow, and reduce channel scrap. The sub-runners 53 are S-shaped, so that the flow balance can be improved, the overall structural size of the die can be reduced, and the cross sections of the sub-runners 53 are trapezoidal.
Because the automotive interior part belongs to a thin-wall part with a large surface area, the sector gate is adopted, so that the plastic melt enters the cavity and is distributed more evenly in the transverse direction to uniformly fill the cavity.
The primary flowpath cooling well 54 is shaped as an inverted cone.
A water inlet 71 is formed in one side of the fixed die core 13, a water outlet 72 is formed in the other side of the fixed die core 21, a plurality of straight-through cooling water pipes 73 are arranged in parallel in the fixed die core 13 and the movable die core 21, and the axes of the cooling water pipes 73 are parallel to the axis of the left die cavity 61.
The number of the cooling water pipes 73 in the fixed mold core 13 is 11, and the number of the cooling water pipes 73 in the movable mold core 21 is 12.
The diameter of the cooling water pipeline 73 is 10mm, and the distance of the center of the cooling water pipeline 73 deviating from the cavity is 15 mm.
A supporting column 45 is further arranged between the movable mold plate 22 and the movable mold fixing plate 23, through holes (not shown) are formed in the push plate 43 and the push rod fixing plate 42, one end of the supporting column 45 is fixed on the movable mold fixing plate 23, and the other end of the supporting column 45 penetrates through the through holes to extend to the movable mold plate 22. The stability is increased by the provision of the support columns 45.
The time required by the solidification of the plastic can be shortened, the production efficiency is effectively increased, all parts of the plastic are uniformly cooled, and adverse factors such as warping deformation caused by thermal stress are prevented.
The utility model discloses automotive interior spare injection mold's working process as follows: after the mold is in a closed and locked state, molten plastic enters the main runner 52 through the hot runner nozzle under the pushing of the screw, then passes through the sub-runner 53 and the main runner cooling well 54, and the sub-runner 53 enters the left and right mold cavities through the pouring gate, and after the cavities are filled with the molten plastic, the molten plastic is subjected to pressure maintaining and cooling molding. In the mold opening process, the main runner cooling well 54 fixes the melt in the runner on the movable mold core 21, when the parting surface is opened to 160mm, the movable mold stops moving, the ejector rod of the injection molding machine moves towards the direction of the fixed mold, the push plate 43, namely the push rod 41, is pushed to push the plastic part and the runner out of the movable mold core 21, then the plastic part is taken out, the mold closing mechanism of the injection molding machine moves to push the movable mold part to move along the guide post 33, and after mold closing is finished, the next molding cycle is started.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made in the embodiments without departing from the principles and spirit of the invention, and the scope of the invention is to be accorded the full scope of the claims.
Claims (6)
1. The utility model provides an automotive interior spare injection mold which characterized in that: the hot runner mold comprises a fixed mold fixing plate, a fixed mold core, a movable mold plate, a movable mold fixing plate, a guide hole, a guide sleeve, a push rod, a guide pillar, a push rod fixing plate, a cushion block, a push plate, a hot nozzle, a main runner, a sub-runner, a pouring gate and a main runner cooling well, wherein the guide hole is formed in the lower surface of the fixed mold plate, the guide sleeve is arranged in the guide hole, the guide pillar is arranged on the upper surface of the movable mold plate, the guide pillar and the guide hole are correspondingly arranged, the fixed mold core is fixed on the fixed mold plate, the fixed mold plate is fixed on the fixed mold plate, the movable mold core is fixed on the movable mold plate, the cushion block is fixedly arranged between the movable mold plate and the movable mold fixing plate, one end of the push rod penetrates through, the push pedal passes through the ejector pin connector and links to each other with the ejector pin of locating on the movable mould fixed plate, the cover half core is two cavities, is left die cavity and right die cavity respectively, hot mouth is located be connected with the sprue in the cover half fixed plate, the sprue is connected with two subchannels and sprue cooling well, the subchannel passes through the runner and is connected with the cavity, fan-shaped runner is adopted to the runner, the subchannel adopts S-shaped and cross section is trapezoidal.
2. The automotive interior spare injection mold of claim 1, characterized in that: the shape of the main runner cooling well is inverted cone.
3. The automotive interior spare injection mold of claim 1, characterized in that: the water inlet is formed in one side of the fixed die core and one side of the movable die core, the water outlet is formed in the other side of the fixed die core and the movable die core, a plurality of through cooling water pipelines are arranged inside the fixed die core and the movable die core side by side, and the axes of the cooling water pipelines are parallel to the axis of the left die cavity.
4. The automotive interior spare injection mold of claim 3, characterized in that: the number of the cooling water pipelines in the fixed model core is 11, and the number of the cooling water pipelines in the movable model core is 12.
5. The automotive interior spare injection mold of claim 4, characterized in that: the diameter of the cooling water pipeline is 10mm, and the distance from the center of the cooling water pipeline to the cavity is 15 mm.
6. The automotive interior spare injection mold of claim 1, characterized in that: the push plate and the push rod fixing plate are provided with through holes, one end of each support column is fixed on the movable die fixing plate, and the other end of each support column penetrates through the through hole to extend to the movable die plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922249388.XU CN212400158U (en) | 2019-12-13 | 2019-12-13 | Injection mold for automotive interior parts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922249388.XU CN212400158U (en) | 2019-12-13 | 2019-12-13 | Injection mold for automotive interior parts |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212400158U true CN212400158U (en) | 2021-01-26 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922249388.XU Active CN212400158U (en) | 2019-12-13 | 2019-12-13 | Injection mold for automotive interior parts |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212400158U (en) |
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2019
- 2019-12-13 CN CN201922249388.XU patent/CN212400158U/en active Active
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