CN207072094U - A kind of arc core-pulling mechanism of injection mold - Google Patents
A kind of arc core-pulling mechanism of injection mold Download PDFInfo
- Publication number
- CN207072094U CN207072094U CN201720919888.8U CN201720919888U CN207072094U CN 207072094 U CN207072094 U CN 207072094U CN 201720919888 U CN201720919888 U CN 201720919888U CN 207072094 U CN207072094 U CN 207072094U
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- mold insert
- mold
- connecting rod
- mold base
- sliding block
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Abstract
A kind of arc core-pulling mechanism of injection mold, including die main body, upper mold base and lower mold base are provided with die main body, punch-pin is provided with upper mold base, be provided with cavity plate in lower mold base, the die cavity formed between punch-pin and described cavity plate, be provided with the first mold insert straight in cavity plate, lower mold base is provided with the first sliding block measured, and the first sliding block is connected with the first mold insert；The second mold insert of bending is provided with punch-pin, upper mold base is provided with the second sliding block measured, and the front end of the second sliding block is provided with first connecting rod, and the upper end of the second mold insert is hinged with second connecting rod, and first connecting rod is hinged with second connecting rod；The front end of first mold insert is connected with the lower end of the second mold insert.First mold insert and the difference core pulling of the second mold insert in the utility model, and secondary connecting rod pulled core structure is formed using first connecting rod and second connecting rod, so that the second mold insert of bending eliminates and injection-molded finished and upper cores interference in core pulling, ensure that the second mold insert is smoothly stripped, so as to realize being integrally formed for wide-angle bend pipe.
Description
Technical field
It the utility model is related to a kind of arc core-pulling mechanism of injection mold.
Background technology
Plastics injection mould is the instrument for producing plastic products, using very extensive.In plastic products injection moulding, by
Have indent, side channel, side opening etc. in the inside of some plastic products, need to set mold cores and in plastic part after shaping
Mold cores are taken out by way of core pulling.
Because consumer is increasingly lifted to the quality requirement of product, in order to increase the various aspects of performance of plastic product, it is necessary to
By the separately part progress integrated injection moulding production of shaping assembling originally, this also just increases difficulty of processing.For example, wide-angle
Plastic bend tube or the bend pipe with straight length, conventional meanses are to take multisection type to be molded respectively to be assembled again, it is now desired to
Bend pipe is integrally formed, is just designed into the arc core-pulling of the wide-angle of complexity among these.Prior art after completion of the injection-moulding, mould
The mold insert of tool can interfere in itself when extracting out with die or moulding, lead to not smoothly be stripped.The side of plastic mould core-extracting
Formula is also a lot, but less for the extraction mode with radian hole, be badly in need of in the industry it is a kind of can facilitate, stably, reliable arc
The drawing mechanism of core.
Utility model content
In order to overcome the above-mentioned deficiency of prior art, the utility model provides a kind of arc core-pulling mechanism of injection mold.
The technical scheme in the invention for solving the technical problem is：A kind of arc core-pulling mechanism of injection mold, including
Die main body, is provided with upper mold base and lower mold base in the die main body, and described upper mold base is interior to be provided with punch-pin, in described lower mold base
Provided with cavity plate, after described upper mold base is with described lower mold base matched moulds, formed between described punch-pin and described cavity plate
Die cavity, is provided with the first straight mold insert in described cavity plate, and described lower mold base is provided with the first sliding block that side goes out, and described the
One sliding block is connected with the first described mold insert；
The second mold insert of bending is provided with described punch-pin, described upper mold base is provided with the second sliding block that side goes out, described
The front end of second sliding block is provided with first connecting rod, and the upper end of second mold insert is hinged with second connecting rod, described first connecting rod with
Described second connecting rod is hinged；
The front end of first mold insert is connected with the lower end of second mold insert.
Further, the upper surface of second mold insert offers spacing hole, and limited block is provided with described upper mold base, described
The described spacing hole of limited block insertion in.
Further, fixed support is additionally provided with described upper mold base, the second described mold insert is cut with scissors with described fixed support
Connect.
Further, the rear end of second sliding block is provided with oil cylinder core-pulling mechanism.
Further, the second described mold insert semicircular in shape.
The beneficial effects of the utility model are：Core pulling is distinguished by the first mold insert and the second mold insert, and connected using first
Bar and second connecting rod form secondary connecting rod pulled core structure so that the second mold insert of bending eliminated in core pulling with it is injection-molded finished and
The interference of upper cores, it is ensured that the second mold insert is smoothly stripped, and so as to realize being integrally formed for wide-angle bend pipe, or even can be produced curved
Pipe and the integrally formed product of remaining housing.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is upper mold base and lower mold base structural representation.
Fig. 3 is part-structure schematic diagram of the present utility model.
Fig. 4 is Fig. 3 explosive view.
Fig. 5 is the structural representation for being integrally formed bend pipe.
Embodiment
The utility model is described in further detail with reference to the accompanying drawings and detailed description.
1~Fig. 5 of reference picture, a kind of arc core-pulling mechanism of injection mold, including die main body 1, set in the die main body 1
There are upper mold base 2 and lower mold base 3, punch-pin 4 is provided with described upper mold base 2, cavity plate 5 is provided with described lower mold base 3, when described
Upper mold base 2 and the die cavity after the described matched moulds of lower mold base 3, formed between described punch-pin 4 and described cavity plate 5, described is recessed
Be provided with the first straight mold insert 6 in mould 5, described lower mold base 3 is provided with the first sliding block 7 that side goes out, the first described sliding block 7 with
The first described mold insert 6 connects；
The second mold insert 8 of bending is provided with described punch-pin 4, described upper mold base 2 is provided with the second sliding block 9 that side goes out, institute
The front end for the second sliding block 9 stated is provided with first connecting rod 10, and the upper end of second mold insert 8 is hinged with second connecting rod 11, described
First connecting rod 10 is be hinged with described second connecting rod 11；
The front end of first mold insert 6 is connected with the lower end of second mold insert 8.
Due to being integrally formed the requirement of injection bend pipe 16, it is preferred that the described semicircular in shape of the second mold insert 8, so as to second
Mold insert 8 can be extracted out smoothly.
In the present embodiment, the upper surface of second mold insert 8 offers spacing hole 12, and limit is provided with described upper mold base 2
Position block 13, described limited block 13 are inserted in described spacing hole 12.Because the second mold insert 8 is the knot of taking secondary connecting rod to extract out
Structure, second connecting rod 11 is connected with the second mold insert 8 by way of be hinged, therefore shake and movement easily occur in production, is made
Rise into moulding percent defective.By the cooperation of spacing hole in this implementation 12 and limited block 13, the second mold insert 8 can be played good
Good position-limiting action, so as to ensure the smooth production of moulding.
In the present embodiment, fixed support 14 is additionally provided with described upper mold base 2, the second described mold insert 8 is consolidated with described
Fixed rack 14 is be hinged.Preferably, the fixed support 14 is attached to the both sides of the second mold insert 8, can both play the second mold insert 8 of connection
Effect, the displacement on 8 left and right direction of the second mold insert can also be limited.
In the present embodiment, the rear end of second sliding block 9 is provided with oil cylinder core-pulling mechanism 15.Due to the core pulling of the second mold insert 8
Away from larger, take oil cylinder core-pulling mechanism 15 to play saving raw material, shorten the effect of molding cycle.
The utility model by the first mold insert and the second mold insert in use, distinguish core pulling, and use first connecting rod and second
Connecting rod forms secondary connecting rod pulled core structure so that the second mold insert of bending eliminated in core pulling with it is injection-molded finished and upper cores
Interference, it is ensured that the second mold insert is smoothly stripped, and so as to realize being integrally formed for wide-angle bend pipe, or even can produce bend pipe and remaining
The integrally formed product of housing.
Claims (5)
1. a kind of arc core-pulling mechanism of injection mold, including die main body, the die main body is interior to be provided with upper mold base and lower mold base,
Punch-pin is provided with described upper mold base, cavity plate is provided with described lower mold base, when described upper mold base and described lower mold base close
After mould, the die cavity that is formed between described punch-pin and described cavity plate, it is characterised in that：Straight the is provided with described cavity plate
One mold insert, described lower mold base are provided with the first sliding block that side goes out, and the first described sliding block is connected with the first described mold insert；
The second mold insert provided with bending in described punch-pin, the second sliding block that described upper mold base goes out provided with side, described second
The front end of sliding block is provided with first connecting rod, and the upper end of second mold insert is hinged with second connecting rod, described first connecting rod with it is described
Second connecting rod be hinged；
The front end of first mold insert is connected with the lower end of second mold insert.
2. the arc core-pulling mechanism of injection mold according to claim 1, it is characterised in that：The upper table of second mold insert
Face offers spacing hole, and limited block is provided with described upper mold base, and described limited block is inserted in described spacing hole.
3. the arc core-pulling mechanism of injection mold according to claim 1, it is characterised in that：Also set in described upper mold base
There is fixed support, the second described mold insert is hinged with described fixed support.
4. the arc core-pulling mechanism of injection mold according to claim 1, it is characterised in that：The rear end of second sliding block
Provided with oil cylinder core-pulling mechanism.
5. the arc core-pulling mechanism of injection mold according to claim 1, it is characterised in that：The second described mold insert is in half
It is circular.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720919888.8U CN207072094U (en) | 2017-07-27 | 2017-07-27 | A kind of arc core-pulling mechanism of injection mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720919888.8U CN207072094U (en) | 2017-07-27 | 2017-07-27 | A kind of arc core-pulling mechanism of injection mold |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207072094U true CN207072094U (en) | 2018-03-06 |
Family
ID=61522964
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720919888.8U Active CN207072094U (en) | 2017-07-27 | 2017-07-27 | A kind of arc core-pulling mechanism of injection mold |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207072094U (en) |
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2017
- 2017-07-27 CN CN201720919888.8U patent/CN207072094U/en active Active
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