CN203854143U - Mold for injection molding of long glass fiber - Google Patents
Mold for injection molding of long glass fiber Download PDFInfo
- Publication number
- CN203854143U CN203854143U CN201420170129.2U CN201420170129U CN203854143U CN 203854143 U CN203854143 U CN 203854143U CN 201420170129 U CN201420170129 U CN 201420170129U CN 203854143 U CN203854143 U CN 203854143U
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- built
- groove
- injection molding
- magnet
- long glass
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Abstract
The utility model discloses a mold for injection molding of a long glass fiber. The mold comprises an upper mold, wherein an embedded groove for placing an embedded part is formed in the position on the inner surface of the upper mold correspondingly to the to-be-reinforced position of a prefabricated product; a magnet is embedded on the bottom surface of the embedded groove; the upper end face of the magnet is higher than the bottom surface of the embedded groove. The embedded part is put into the embedded groove when the mold for injection molding of the long glass fiber, which isdisclosed by the utility model, is used, and then polyurethane reaction injection molding of the glass fiber is carried out. A long fiber injection (LFI) product with a high-strength embedded part locally can be conveniently prepared, and the target of enhancing the strength of a fixed part of the LFI product is achieved.
Description
Technical field
The utility model belongs to injection molding technology field, relates to a kind of long glass fibres die for injection molding.
Background technology
Long glass fibres injection moulding (LFI) technology, the raw material that is liquid condition is sent into mixing head mixing through measuring pump with certain proportioning, add the glass fibre of certain length and content in discharge nozzle terminal simultaneously, after the mixture injection mould mixing, in mould, carry out fast reaction and carry out crosslinking curing, after the demoulding, form foam plastic product.
At present, before and after passenger vehicle, ceiling decoration part adopts LFI explained hereafter mostly.After bus crest slab entrucking, need to fix (generally adopting thread tapping to fix) miscellaneous part in the above, therefore higher to the requirement of strength at fixed part place; But LFI technological forming product is foaming product, and product thickness is 5-6mm, even if add glass fibre, fixed part place intensity can not meet instructions for use.
Utility model content
The purpose of this utility model is to provide a kind of long glass fibres die for injection molding, solves current LFI product fixed part place intensity low, can not meet the problem of instructions for use.
In order to realize above object, the technical scheme that the utility model adopts is: a kind of long glass fibres die for injection molding, comprise patrix, described patrix inner surface and pre-manufactured product need to add strong position corresponding position and be provided with the built-in groove for placing embedded parts, the bottom surface of described built-in groove is embedded with magnet, and the upper surface of described magnet exceeds the bottom surface of built-in groove.
The sidewall of described built-in groove and the angle of groove bottom are greater than 90 °.The sidewall of built-in groove and the angle of groove bottom are greater than 90 °, make the certain angle of sidewall slope of built-in groove, are convenient to wrap built-in fitting completely in foamed material inflow built-in groove.
The sidewall of described built-in groove and the angle of groove bottom are 105 °.
Described magnet is cylinder-shaped magnet.
Long glass fibres die for injection molding of the present utility model, patrix inner surface and pre-manufactured product need to add strong position corresponding position and be provided with built-in groove, the bottom surface of built-in groove is embedded with magnet, when use, built-in fitting is put into built-in groove, carry out again the injection moulding of glass fiber reinforced polyester reactive urethane, can prepare easily the local LFI product with high strength built-in fitting, reach the object that strengthens LFI product fixed part place intensity.
Brief description of the drawings
Fig. 1 is the structural representation of the long glass fibres die for injection molding of embodiment 1;
Fig. 2 is the side view cutaway drawing of Fig. 1;
Fig. 3 is the installation diagram of the long glass fibres die for injection molding of embodiment 1;
Fig. 4 is the partial enlarged drawing at A place in Fig. 3.
Detailed description of the invention
Below in conjunction with detailed description of the invention, the utility model is further described.
Embodiment 1
The long glass fibres die for injection molding of the present embodiment, as shown in Figure 1, 2, comprise patrix 1, described patrix 1 inner surface and pre-manufactured product need to add strong position corresponding position and be provided with the built-in groove 2 for placing embedded parts, and the sidewall of described built-in groove 2 and the angle of groove bottom are 105 DEG C; The bottom surface of described built-in groove 2 is embedded with 6 blocks of magnet 3, and described magnet 3 is cylinder-shaped magnet, and the upper surface of 6 blocks of magnet 3 is concordant and exceed the bottom surface of built-in groove 2.Magnet 3 is in the interior regular distribution of built-in groove 2, for adsorbing built-in fitting.
The long glass fibres die for injection molding of the present embodiment, installation diagram as shown in Figure 3,4, comprises patrix 1 and counterdie 5, the cavity that patrix 1 and counterdie 5 matched moulds form is die cavity 6; In die cavity 6, patrix 1 inner surface and pre-manufactured product need to add strong position corresponding position and be provided with the built-in groove 2 for placing embedded parts 4, and the bottom surface of described built-in groove 2 is embedded with the magnet 3 for adsorbing built-in fitting 4, and the upper surface of magnet 3 is concordant and exceed the bottom surface of built-in groove 2.
In the time that built-in fitting is put into built-in groove, due to the suction-operated of magnet, built-in fitting is fixed in built-in groove; In mould evenly when the polyurethane stock solution of spraying combined fiberglass, due to the suction-operated of magnet, built-in fitting can not flowing and washing away and shift position or drop because of expanding foam solution; Because the upper surface of magnet is higher than the bottom surface of built-in groove, expanding foam solution can flow between built-in fitting and built-in groove sidewall, gap between built-in fitting and built-in groove bottom surface; When the demoulding, built-in fitting has firmly been imbedded in pre-manufactured product, and the adhesion of itself and pre-manufactured product, well beyond the absorption affinity of magnet, therefore can separate with magnet smoothly in the time of the demoulding.
Use above-mentioned mould to carry out the injection molding method of long glass fibres, comprise the following steps:
1) get the mould of pre-manufactured product, need to add strong position corresponding position and be provided for the built-in groove of placing embedded parts in patrix inner surface and pre-manufactured product, the sidewall of described built-in groove and the angle of groove bottom are 105 °, the length and width of built-in groove bottom surface is than the each large 5mm of the length and width of built-in fitting, the large 3mm of thickness of the depth ratio built-in fitting of built-in groove; The bottom surface of built-in groove is embedded with magnet, and the upper surface of described magnet exceeds the bottom surface of built-in groove;
2) at mould inner surface coating release agent;
3) built-in fitting is put into built-in groove; Described built-in fitting is for having passed through in advance parkerized parallels; Due to the suction-operated of magnet, parallels is fixed in built-in groove firmly.
4) polyurethane stock solution of even spraying combined fiberglass in mould, matched moulds, pressurize, the demoulding, obtain pre-manufactured product.
The long glass fibres injection moulding method of the present embodiment, because the sidewall of built-in groove and the angle of groove bottom are greater than 90 °, and the magnet upper surface that the bottom surface of built-in groove is embedded with exceeds the bottom surface of built-in groove, the polyurethane stock solution (expanding foam solution) of combined fiberglass is easy to flow in built-in groove, fill up the gap between gap and built-in groove sidewall and the built-in fitting between pre-buried bottom surface and built-in fitting, thereby in the time of matched moulds pressurize, built-in fitting is wrapped in pre-manufactured product firmly.
Claims (4)
1. a long glass fibres die for injection molding, comprise patrix, it is characterized in that: described patrix inner surface and pre-manufactured product need to add strong position corresponding position and be provided with the built-in groove for placing embedded parts, the bottom surface of described built-in groove is embedded with magnet, and the upper surface of described magnet exceeds the bottom surface of built-in groove.
2. long glass fibres die for injection molding according to claim 1, is characterized in that: the sidewall of described built-in groove and the angle of groove bottom are greater than 90 °.
3. long glass fibres die for injection molding according to claim 2, is characterized in that: the sidewall of described built-in groove and the angle of groove bottom are 105 °.
4. long glass fibres die for injection molding according to claim 1, is characterized in that: described magnet is cylinder-shaped magnet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420170129.2U CN203854143U (en) | 2014-04-09 | 2014-04-09 | Mold for injection molding of long glass fiber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420170129.2U CN203854143U (en) | 2014-04-09 | 2014-04-09 | Mold for injection molding of long glass fiber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203854143U true CN203854143U (en) | 2014-10-01 |
Family
ID=51604020
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420170129.2U Expired - Fee Related CN203854143U (en) | 2014-04-09 | 2014-04-09 | Mold for injection molding of long glass fiber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203854143U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107990382A (en) * | 2017-11-24 | 2018-05-04 | 杭州老板电器股份有限公司 | A kind of easy to install and dismounting switch panel structure kitchen ventilator |
| CN108582809A (en) * | 2018-04-18 | 2018-09-28 | 江苏新泉汽车饰件股份有限公司 | A kind of automotive light weight technology component using composite material process planning |
| CN108621355A (en) * | 2018-04-18 | 2018-10-09 | 江苏新泉汽车饰件股份有限公司 | A kind of automotive light weight technology long glass fibres injection molding technique |
-
2014
- 2014-04-09 CN CN201420170129.2U patent/CN203854143U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107990382A (en) * | 2017-11-24 | 2018-05-04 | 杭州老板电器股份有限公司 | A kind of easy to install and dismounting switch panel structure kitchen ventilator |
| CN107990382B (en) * | 2017-11-24 | 2023-08-25 | 杭州老板电器股份有限公司 | Range hood with switch panel structure easy to install and disassemble |
| CN108582809A (en) * | 2018-04-18 | 2018-09-28 | 江苏新泉汽车饰件股份有限公司 | A kind of automotive light weight technology component using composite material process planning |
| CN108621355A (en) * | 2018-04-18 | 2018-10-09 | 江苏新泉汽车饰件股份有限公司 | A kind of automotive light weight technology long glass fibres injection molding technique |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20181203 Address after: 450061 Yudao Road, Guancheng District, Zhengzhou City, Henan Province Patentee after: Yutong Passenger Car Co., Ltd., Zhengzhou Address before: 450001 No. 69 Eighth Avenue, Zhengzhou National Economic and Technological Development Zone, Henan Province Patentee before: Zhengzhou Jingyida Auto Parts Co., Ltd. |
|
| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141001 Termination date: 20190409 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |