CN206230795U - A kind of mould for preventing automotive plastic parts from having joint line - Google Patents
A kind of mould for preventing automotive plastic parts from having joint line Download PDFInfo
- Publication number
- CN206230795U CN206230795U CN201621218855.2U CN201621218855U CN206230795U CN 206230795 U CN206230795 U CN 206230795U CN 201621218855 U CN201621218855 U CN 201621218855U CN 206230795 U CN206230795 U CN 206230795U
- Authority
- CN
- China
- Prior art keywords
- joint line
- mould
- hole
- plastic parts
- mold insert
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 229920003023 plastic Polymers 0.000 title claims abstract description 22
- 239000004033 plastic Substances 0.000 title claims abstract description 22
- 238000002347 injection Methods 0.000 claims abstract description 7
- 239000007924 injection Substances 0.000 claims abstract description 7
- 230000000694 effects Effects 0.000 abstract description 2
- 239000002699 waste material Substances 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000007493 shaping process Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Abstract
The utility model discloses a kind of mould for preventing automotive plastic parts from having joint line, the rear cavity matched including front cavity and with it, the side of rear cavity is provided with injection hole, it is characterised in that, hole is provided with described front cavity, the mold insert that can be moved up and down is provided with hole.The utility model by by original projection be changed to can with activity mold insert, avoid the generation of joint line, improve working of plastics exterior quality, further improve commodity high-quality appearance requirement, after avoiding commodity development out, because outward appearance is bad, cause pin late, waste of resource and cost, so as to save cost.
Description
Technical field
The utility model is related to a kind of mould for preventing automotive plastic parts from having joint line, belongs to mould technical field.
Background technology
Traditional Shooting Technique is used at present, and working of plastics 4 is in in-mold molding, as shown in Figure 1 and Figure 2, traditional injection mould
Tool includes front cavity 2 and matched rear cavity 3, and the bottom in front cavity 2 is provided with projection, due to not being inside working of plastics 4
Complete smooth plane, plastics flow (its flow direction direction of arrow as shown in Figure 1) in die cavity, can be subject to inside die cavity
Raised stop, so as to change flow direction, is changed into two flow directions, then have both direction to converge a side from same direction
To now meet occurs joint line 5, joint line influence working of plastics outward appearance and quality, if working of plastics is assemblied in outside commodity
See on visible surface, so as to influence exterior of commodity and quality, nowadays people are to exterior of commodity and artistic shape need more and more higher,
The commodity for having open defect are beyond affordability.
The content of the invention
The technical problems to be solved in the utility model is：There is provided a kind of quality it is high, cost-effective prevent automobile plastic
Part has the mould of joint line, solves the problems, such as there is joint line on the working of plastics of shaping in traditional injection mold.
In order to solve the above-mentioned technical problem, the technical solution of the utility model there is provided one kind prevents the automotive plastic parts from having
The mould of joint line, including front cavity and the rear cavity that matches with it, the side of rear cavity are provided with injection hole, and its feature exists
In, hole is provided with described front cavity, the mold insert that can be moved up and down is provided with hole.
The utility model is by the way that be changed to original projection can be with the mold insert of activity, it is to avoid the generation of joint line, improves
Working of plastics exterior quality, further improves commodity high-quality appearance requirements, it is to avoid commodity development out after, due to outward appearance not
It is good, cause pin late, waste of resource and cost, so as to save cost.
Brief description of the drawings
Fig. 1 is for plastic piece shaping process under conventional Shooting Technique and joint line description occurs；
Fig. 2 is the left view of Fig. 1；
Fig. 3 is a kind of schematic diagram of the mould for preventing automotive plastic parts from having joint line；
Fig. 4 is schematic diagram when mold insert floats upwards；
Fig. 5 is schematic diagram when mold insert floats downwards.
Specific embodiment
To become apparent the utility model, hereby with preferred embodiment, and accompanying drawing is coordinated to be described in detail below.
The utility model is a kind of mould for preventing automotive plastic parts from having joint line, and as shown in Figure 3-Figure 5, it includes front mould
Benevolence 2 and the rear cavity 3 matched with it, the side of rear cavity 3 are provided with injection hole 1, and hole is provided with front cavity 2, and being provided with hole can
With the mold insert 8 for moving up and down, the outboard end of mold insert 8 is connected with oil cylinder.
The mold insert 8 that the projection of the bottom of front cavity 2 is changed to float by the utility model, front cavity 2 and rear cavity 3 keep
Constant, before plastics are flow at original raised position (i.e. first position 6), mold insert 8 floats (as shown in Figure 4) upwards, keeps away
Exempt to stop the flow direction of plastics, after plastics are flow at original raised position (i.e. the second place 7), mold insert 8 is to floating downward
Dynamic (as shown in Figure 5), completes an injection cycle.Whole process plastics do not change (in Fig. 3 flow direction in die cavity
The direction of arrow), do not have joint line.
Claims (1)
1. a kind of mould for preventing automotive plastic parts from having joint line, including front cavity (2) and the rear cavity (3) matched with it,
The side of rear cavity (3) is provided with injection hole (1), it is characterised in that be provided with hole in described front cavity (2), and being provided with hole can be with
The mold insert (8) for moving up and down.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621218855.2U CN206230795U (en) | 2016-11-10 | 2016-11-10 | A kind of mould for preventing automotive plastic parts from having joint line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621218855.2U CN206230795U (en) | 2016-11-10 | 2016-11-10 | A kind of mould for preventing automotive plastic parts from having joint line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206230795U true CN206230795U (en) | 2017-06-09 |
Family
ID=58990060
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621218855.2U Expired - Fee Related CN206230795U (en) | 2016-11-10 | 2016-11-10 | A kind of mould for preventing automotive plastic parts from having joint line |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206230795U (en) |
-
2016
- 2016-11-10 CN CN201621218855.2U patent/CN206230795U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170609 |