CN216832345U - Embedded stud protection forming device of LRTM process die - Google Patents
Embedded stud protection forming device of LRTM process die Download PDFInfo
- Publication number
- CN216832345U CN216832345U CN202220228434.7U CN202220228434U CN216832345U CN 216832345 U CN216832345 U CN 216832345U CN 202220228434 U CN202220228434 U CN 202220228434U CN 216832345 U CN216832345 U CN 216832345U
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- China
- Prior art keywords
- lrtm
- forming device
- blind hole
- screw bolt
- positioning
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- 238000000034 method Methods 0.000 title claims description 12
- 238000005516 engineering process Methods 0.000 claims abstract description 8
- 238000000465 moulding Methods 0.000 claims description 5
- 238000010923 batch production Methods 0.000 abstract description 2
- 239000011152 fibreglass Substances 0.000 description 7
- 229910000831 Steel Inorganic materials 0.000 description 6
- 239000010959 steel Substances 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 5
- 239000011347 resin Substances 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- 239000003365 glass fiber Substances 0.000 description 2
- 238000001721 transfer moulding Methods 0.000 description 2
- 229920002430 Fibre-reinforced plastic Polymers 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000000748 compression moulding Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000011151 fibre-reinforced plastic Substances 0.000 description 1
- 238000011031 large-scale manufacturing process Methods 0.000 description 1
- 238000011017 operating method Methods 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
- 238000004018 waxing Methods 0.000 description 1
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- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The utility model belongs to the technical field of LRTM technology mould, in particular to pre-buried double-screw bolt protection forming device of LRTM technology mould, including last mould and bed die, the relevant position of bed die is equipped with the position sleeve, be equipped with the locating pin in the position sleeve, be equipped with the blind hole on the locating pin, the double-screw bolt has been preset in the blind hole. The utility model provides a pre-buried double-screw bolt of LRTM technology mould protects forming device, built-in fitting and body integrated into one piece have increased product bulk strength, and one shot forming is compared traditional secondary positioning and is fixed, has avoided the time of built-in fitting unwrapping wire location, and convenient and fast has improved batch production's work efficiency.
Description
Technical Field
The utility model belongs to the technical field of LRTM technology mould, a pre-buried double-screw bolt protection forming device of LRTM technology mould is related to, make pre-buried double-screw bolt follow product one shot forming with the help of the pre-buried double-screw bolt protection forming device of mould.
Background
The Light resin transfer molding process (RTM-Light) is also called LRTM process, and the composite material product produced by the Light resin transfer molding process has the advantages of smooth inside and outside surfaces, high product size precision, low porosity, high strength and the like, so that the low-cost closed mold manufacturing process is developed rapidly in recent years, is also suitable for small-batch trial production process before large-scale production of RTM compression molding process, and has low trial production cost investment.
In the field of fiber reinforced plastic manufacturing, LRTM process products often require pre-embedded fixing studs for connecting and fixing other accessories. Structural members and glass fiber reinforced plastic members are adhered together by structural adhesives, and some glass fiber reinforced plastic members are embedded with steel plates, and after the glass fiber reinforced plastic is cured, holes are punched and tapped at corresponding positions to manufacture screw holes, and then the screw holes are connected with the steel members. The defects of the methods are that the secondarily pasted glass fiber reinforced plastic and the glass fiber reinforced plastic are not integrated, the connection is not firm, the secondary positioning and tapping operation is greatly influenced by human factors, the consistency of products is poor, the precision is not well controlled, the error is high, the labor intensity is high, and the efficiency is low.
SUMMERY OF THE UTILITY MODEL
The utility model provides a pre-buried double-screw bolt protection forming device of LRTM technology mould can solve the problem that points out among the background art.
The embedded stud protection forming device of the LRTM process mold comprises an upper mold and a lower mold, wherein a positioning sleeve is arranged at the corresponding position of the lower mold, a positioning pin is arranged in the positioning sleeve, a blind hole is formed in the positioning pin, and a stud is preset in the blind hole.
Preferably, the positioning pin is an inverted conical piece, and a limiting hole corresponding to the conical piece is formed in the positioning sleeve.
Preferably, the blind hole is a threaded hole, and the stud is detachably connected with the threaded hole.
Has the advantages that: the utility model provides a pre-buried double-screw bolt protection forming device of LRTM technology mould has following beneficial effect:
1. the embedded part and the body are integrally formed, so that the integral strength of the product is increased;
2. compared with secondary positioning, the secondary positioning is fixed, the paying-off positioning time of the embedded part is avoided, convenience and rapidness are achieved, and the working efficiency of batch production is improved.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Description of reference numerals:
reference numbers in the figures: 100, mounting a mold; 200 lower dies; 201, positioning a steel sleeve; 202 positioning pins; 203 a blind hole; 300 parts of glass fiber reinforced plastic products; 301 embedding studs in advance.
Detailed Description
In the following, an embodiment of the present invention will be described in detail with reference to the drawings, but it should be understood that the scope of the present invention is not limited by the embodiment.
Example (b):
as shown in fig. 1, the LRTM process mold embedded stud protection molding device comprises an upper mold 100 and a lower mold 200, wherein a positioning sleeve 201 is arranged at a corresponding position of the lower mold 200, a positioning steel sleeve can be selected for the positioning sleeve 201, a positioning pin 202 is arranged in the positioning sleeve 201, a blind hole 203 is arranged on the positioning pin 202, a stud 301 is preset in the blind hole 203, the blind hole 203 is a threaded hole, and the stud 301 is detachably connected with the threaded hole.
The locating pin 202 is an inverted conical part, a limiting hole corresponding to the conical part is formed in the locating sleeve 201, the inverted conical part is convenient to demould, and the locating sleeve 201 and the locating pin 202 can be conveniently separated.
The utility model discloses a theory of operation or operating method: firstly, before the lower die 200 is copied, a positioning steel sleeve 201 is placed on a moulding bed processed in a numerical control manner in advance, and the moulding bed is pasted and embedded into the lower die 200;
after the upper die 100 and the lower die 200 are maintained, a positioning pin 202 is placed in the positioning steel sleeve 201;
a half of fiber is pre-laid in the lower die 200 according to requirements, and a proper hole is reserved in the position of the threaded hole in the positioning pin 202;
dipping a release agent or waxing for protection at the thread position of the embedded stud 301, screwing the embedded stud 301 into the positioning pin 202, enabling the embedded stud 301 to penetrate through the space between the glass fiber and the positioning pin 202 and properly screwing the embedded stud, integrally laying the other half of the glass fiber on the lower die 200, closing the upper die 100 after the treatment is finished, and filling resin after vacuumizing and pressure maintaining;
demolding after curing, wherein the demolding sequence is as follows: the upper mold 100 is removed, the glass fiber reinforced plastic product 300 and the positioning pin 202 are removed together, and the positioning pin 202 is reversely screwed and removed by using a tool wrench.
The above disclosure is only for a few specific embodiments of the present invention, however, the present invention is not limited to the embodiments, and any changes that can be considered by those skilled in the art shall fall within the protection scope of the present invention.
Claims (3)
1. The utility model provides a pre-buried double-screw bolt protection forming device of LRTM technology mould which characterized in that: the die comprises an upper die (100) and a lower die (200), wherein a positioning sleeve (201) is arranged at the corresponding position of the lower die (200), a positioning pin (202) is arranged in the positioning sleeve (201), a blind hole (203) is formed in the positioning pin (202), and a stud (301) is preset in the blind hole (203).
2. The embedded stud protection molding device of the LRTM process mold according to claim 1, wherein: the positioning pin (202) is an inverted conical piece, and a limiting hole corresponding to the conical piece is formed in the positioning sleeve (201).
3. The embedded stud protection molding device of the LRTM process mold according to claim 2, wherein: the blind hole (203) is a threaded hole, and the stud (301) is detachably connected with the threaded hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220228434.7U CN216832345U (en) | 2022-01-27 | 2022-01-27 | Embedded stud protection forming device of LRTM process die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220228434.7U CN216832345U (en) | 2022-01-27 | 2022-01-27 | Embedded stud protection forming device of LRTM process die |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216832345U true CN216832345U (en) | 2022-06-28 |
Family
ID=82085541
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220228434.7U Active CN216832345U (en) | 2022-01-27 | 2022-01-27 | Embedded stud protection forming device of LRTM process die |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216832345U (en) |
-
2022
- 2022-01-27 CN CN202220228434.7U patent/CN216832345U/en active Active
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