CN210308826U - Bubble-free high-precision one-step molding injection mold - Google Patents
Bubble-free high-precision one-step molding injection mold Download PDFInfo
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- CN210308826U CN210308826U CN201921075346.2U CN201921075346U CN210308826U CN 210308826 U CN210308826 U CN 210308826U CN 201921075346 U CN201921075346 U CN 201921075346U CN 210308826 U CN210308826 U CN 210308826U
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Abstract
The utility model discloses a bubble-free high-precision one-step molding injection mold, which comprises an upper mold and a lower mold which are mutually matched, wherein a cavity for molding a plastic product and a glue inlet channel communicated with the cavity are formed in the upper mold; the utility model discloses a bubble high accuracy one shot forming injection mold, through set up the boss on the core, the boss sets up and advances gluey recess of gluey passageway intercommunication, it sets up excessive gluey mouth to advance gluey recess, the sizing material fills the entering die cavity from excessive gluey mouth overflow after advancing gluey passageway entering into gluey recess, can finally compress into in the gluey recess unnecessary air in the die cavity at the in-process of filling, like this, product in the die cavity is before the solidification, can fill completely plump, can not have the air pocket in the product, the bubble, lack gluey scheduling problem.
Description
Technical Field
The utility model belongs to the technical field of the injection mold technique and specifically relates to a bubble-free high accuracy one shot forming injection mold is related to.
Background
An injection mold is a tool for producing plastic products; and is also a tool for giving the plastic product complete structure and accurate dimension. Plastic products are often injection molded by using an injection mold, however, when a product with a thin wall is prepared, the product yield is reduced because the product is thin and the problems of insufficient filling of flowing materials, bubbles, air pockets, glue shortage and the like are caused during molding.
SUMMERY OF THE UTILITY MODEL
In order to overcome the existing problem, the utility model provides a bubble-free high accuracy one shot forming injection mold.
The technical scheme of the utility model is that: the upper die is internally provided with a cavity for molding a plastic product and a glue inlet channel communicated with the cavity, the lower die is provided with a mold core matched with the cavity, the middle part of the mold core is provided with a boss, the boss is provided with a glue inlet groove, the glue inlet groove is communicated with the glue inlet channel, the glue inlet groove is provided with a glue overflow port, and the glue overflow port is communicated with the cavity.
The glue inlet groove is in a straight line shape, and the glue overflow ports are positioned at the left side and the right side of the glue inlet groove.
The glue inlet groove is cross-shaped, and the glue overflow port is positioned at the upper end, the lower end, the left end and the right end of the glue inlet groove.
The upper die is characterized in that 4 positioning grooves are formed in the periphery of the lower surface of the upper die, and 4 positioning bosses matched with the 4 positioning grooves are formed in the periphery of the upper surface of the lower die.
One of the 4 positioning grooves is provided with a positioning column, and the positioning lug boss corresponding to the positioning groove provided with the positioning column in the 4 positioning lug bosses is provided with a slotted hole which can be inserted into the positioning column.
Be provided with thimble mechanism in the lower mould, thimble mechanism includes a plurality of thimbles, and the mold core is equipped with a plurality of deep cavitys that supply a plurality of thimbles to stretch out and draw back.
The utility model has the advantages that: the utility model discloses a bubble high accuracy one shot forming injection mold, through set up the boss on the core, the boss sets up and advances gluey recess of gluey passageway intercommunication, it sets up excessive gluey mouth to advance gluey recess, the sizing material fills the entering die cavity from excessive gluey mouth overflow after advancing gluey recess from advancing gluey passageway entering, can finally compress into in the gluey recess unnecessary air in the die cavity at the in-process of filling, thus, product in the die cavity is before the solidification, can fill completely, can not have the air pocket in the product, the bubble, the short gluey scheduling problem, after the shaping is accomplished, lie in on the product that to advance gluey recess the part pruning can again, use this injection mold, product one shot forming, the precision is high, stable quality, high production efficiency.
Drawings
Fig. 1 is a schematic structural view (bottom view) of the present invention;
fig. 2 is a schematic structural diagram (top view) of the present invention.
In the figure, 1, an upper die; 2. a lower die; 3. a cavity; 4. a glue inlet channel; 5. a core; 6. a boss; 7. a glue inlet groove; 8. a glue overflow port; 9. positioning a groove; 10. positioning the boss; 11. a positioning column; 12. a slot; 13. a thimble mechanism; 14. a thimble; 15. a deep cavity; 100. and (5) producing the product.
Detailed Description
The invention will be further explained with reference to the drawings and examples.
As shown in fig. 1 and 2, the bubble-free high-precision one-step molding injection mold comprises an upper mold and a lower mold which are matched with each other, wherein a cavity for molding a plastic product and a glue inlet channel communicated with the cavity are formed in the upper mold, a mold core matched with the cavity is formed on the lower mold, a boss is arranged in the middle of the mold core, a glue inlet groove is formed in the boss and is communicated with the glue inlet channel, a glue overflow port is formed in the glue inlet groove, and the glue overflow port is communicated with the cavity.
The glue inlet groove is in a straight shape, the glue overflow ports are positioned at the left side and the right side of the glue inlet groove, and the straight glue inlet groove can reduce the trimming part while ensuring the glue inlet speed.
The glue inlet groove is cross-shaped, the glue overflow ports are positioned at the upper end, the lower end, the left end and the right end of the glue inlet groove, and the cross-shaped glue inlet groove can accelerate glue materials to fill the cavity and improve production efficiency.
The glue inlet groove of the embodiment is in a straight shape.
Go up the mould lower surface and be provided with 4 constant head tanks all around, the lower mould upper surface is provided with 4 location bosss that suit with 4 constant head tanks all around, and location boss and positioning groove make and go up mould and lower mould counterpoint accurate.
4 constant head tank one of them constant head tank be provided with the reference column, in 4 location bosss with be equipped with the reference column the corresponding location boss of constant head tank be equipped with the slotted hole that can insert the reference column, reference column and slotted hole can avoid going up the unexpected aversion of mould and lower mould, ensure to counterpoint accurate, improve product shaping precision and stability.
Be provided with thimble mechanism in the lower mould, thimble mechanism includes a plurality of thimbles, and the core is equipped with a plurality of deep cavitys that supply a plurality of thimbles to stretch out and draw back, and a plurality of thimbles are ejecting with the product after moulding plastics, and thimble mechanism is prior art's thimble mechanism.
The above, only do the preferred embodiment of the present invention is not used for limiting the present invention, all the technical matters of the present invention should be included in the protection scope of the present invention for any slight modification, equivalent replacement and improvement of the above embodiments.
Claims (6)
1. The bubble-free high-precision one-step molding injection mold is characterized by comprising an upper mold and a lower mold which are matched with each other, wherein a cavity for molding a plastic product and a glue inlet channel communicated with the cavity are formed in the upper mold, a mold core matched with the cavity is formed on the lower mold, a boss is arranged in the middle of the mold core, a glue inlet groove is formed in the boss and communicated with the glue inlet channel, a glue overflow port is formed in the glue inlet groove and communicated with the glue inlet channel, and the glue overflow port is communicated with the cavity.
2. The bubble-free high-precision one-step molding injection mold according to claim 1, wherein the glue inlet groove is in a straight shape, and the glue overflow ports are located on the left side and the right side of the glue inlet groove.
3. The bubble-free high-precision one-step molding injection mold according to claim 1, wherein the glue inlet groove is cross-shaped, and the glue overflow ports are located at the upper, lower, left and right 4 end parts of the glue inlet groove.
4. The bubble-free high-precision one-step molding injection mold according to claim 1, wherein 4 positioning grooves are arranged on the periphery of the lower surface of the upper mold, and 4 positioning bosses adapted to the 4 positioning grooves are arranged on the periphery of the upper surface of the lower mold.
5. The bubble-free high-precision one-step molding injection mold according to claim 4, wherein one of the 4 positioning grooves is provided with a positioning column, and the positioning boss corresponding to the positioning groove provided with the positioning column among the 4 positioning bosses is provided with a slot hole into which the positioning column can be inserted.
6. The bubble-free high-precision one-step molding injection mold according to claim 1, wherein a thimble mechanism is arranged in the lower mold, the thimble mechanism comprises a plurality of thimbles, and the mold core is provided with a plurality of deep cavities for the plurality of thimbles to stretch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921075346.2U CN210308826U (en) | 2019-07-10 | 2019-07-10 | Bubble-free high-precision one-step molding injection mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921075346.2U CN210308826U (en) | 2019-07-10 | 2019-07-10 | Bubble-free high-precision one-step molding injection mold |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210308826U true CN210308826U (en) | 2020-04-14 |
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ID=70150204
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921075346.2U Active CN210308826U (en) | 2019-07-10 | 2019-07-10 | Bubble-free high-precision one-step molding injection mold |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210308826U (en) |
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2019
- 2019-07-10 CN CN201921075346.2U patent/CN210308826U/en active Active
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