CN103847112A - RTM (resin transfer moulding) mould with resin intercepting outlet - Google Patents
RTM (resin transfer moulding) mould with resin intercepting outlet Download PDFInfo
- Publication number
- CN103847112A CN103847112A CN201410050732.1A CN201410050732A CN103847112A CN 103847112 A CN103847112 A CN 103847112A CN 201410050732 A CN201410050732 A CN 201410050732A CN 103847112 A CN103847112 A CN 103847112A
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- CN
- China
- Prior art keywords
- resin
- mould
- rtm
- outlet
- metallic screen
- 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.)
- Pending
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/40—Shaping or impregnating by compression not applied
- B29C70/42—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles
- B29C70/46—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles using matched moulds, e.g. for deforming sheet moulding compounds [SMC] or prepregs
- B29C70/48—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles using matched moulds, e.g. for deforming sheet moulding compounds [SMC] or prepregs and impregnating the reinforcements in the closed mould, e.g. resin transfer moulding [RTM], e.g. by vacuum
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C33/10—Moulds or cores; Details thereof or accessories therefor with incorporated venting means
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Composite Materials (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Abstract
The invention provides an RTM (resin transfer moulding) mould with a resin intercepting outlet. The RTM mould comprises an upper mould and a lower mould, wherein the lower mould is provided with a glue filling hole and a plurality of glue outlets, wherein the glue outlets are provided with metallic screens. Compared with the prior art, the RTM mould with the resin intercepting outlet provided by the invention has the advantages that the cross area of each single channel is reduced under the condition that the total area of the glue outlets is not reduced through the metallic screens; air in a mould cavity is discharged out from the mould through the metallic screens because of resin surface tension in the vacuum pumping state, so that less resin flows out, and the resin loss in manufacture is effectively reduced; in addition, even through a bit of resin flows in the metallic screens, a resin nail formed by solidifying the resin is also small, is likely to break and does not influence the demoulding property, and thus the glue outlets can be set flexibly and efficiently.
Description
Technical field
The present invention relates to a kind of be provided with resin dam outlet RTM mould.
Background technology
Composite RTM, i.e. resin transfer moulding, Resin Transfer Moulding, moulding process, is to adopt upper and lower close die, first fabric blank is put into die cavity, pressurize resin injection by equipment again, infiltrate fabric blank, the then method of curing molding.Because its production efficiency is high, quality of item stable, RTM technique has obtained applying more and more widely in automobile, aviation and military industry.
In RTM mould, can one or more gum outlets be set by the geomery of goods, the quantity of gum outlet and position can directly have influence on the quality of goods.Traditional gum outlet is the passage of a tubular type, and in the time of injecting glue, resin can flow out from this passage.But also there is certain defect in this kind of discharging opening, first, when injecting glue, in order to clear the bubble in die cavity, need to after filling die cavity, continue resin to open outlet valve, and allow resin carry this remaining bubble secretly and continue to flow out, can cause like this resin waste, if close too early outlet valve, can make bubble remain in goods, cause product defect; Secondly, after the resin solidification in gum outlet, can form a resin nail, if this resin nail is bonded on goods, can cause demoulding difficulty, when serious, can goods be damaged because of the demoulding.
The problems referred to above are the problems that should pay attention to and solve in the design and production use procedure of RTM mould.
Summary of the invention
The object of this invention is to provide a kind of dam RTM mould of outlet of resin that is provided with and solve the discharging opening existing in prior art in the time of injecting glue, in order to clear the bubble in die cavity, need to after filling die cavity, continue resin to open outlet valve, allowing resin carry this remaining bubble secretly continues to flow out, can cause like this resin waste, if close too early outlet valve, can make bubble remain in goods, cause product defect; In addition, after the resin solidification in gum outlet, a resin nail can be formed, if this resin nail is bonded on goods, demoulding difficulty can be caused, the problem that can goods be damaged because of the demoulding when serious.
Technical solution of the present invention is:
Be provided with resin dam outlet a RTM mould, comprise upper die and lower die, described counterdie is provided with gum-injecting port and some gum outlets, described gum outlet is provided with metallic screen.
Preferably, described gum-injecting port and gum outlet are located on the sidewall of described counterdie.
Preferably, described metallic screen adopts detachable metallic screen, in metallic screen, immerse resin and solidify after, can adopt mechanical system to take out and change.
Preferably, described metallic screen is column type, in described metallic screen, is spongelike structure, and the sieve diameter of described metallic screen is 0.1 ~ 0.3mm, can flow into by effective minimizing resin, discharges but can not affect bubble.
The present invention is a kind of is provided with the dam RTM mould of outlet of resin, discharges bubble when discharging opening can dam resin, and the loss of resin can effectively reduce perfusion time reduces the resin that resin is solidified to form at discharging opening simultaneously and follows closely the impact on the demoulding.Pack Demountable metallic sieve at resin discharging opening, after having produced at every turn, replaceable new metallic screen.
The invention has the beneficial effects as follows: the present invention is a kind of is provided with the dam RTM mould of outlet of resin, compared with prior art, metallic screen is not in the situation that reducing the gum outlet gross area, reduce the sectional area of single passage, because of the reason of resin surface tension force, under the state vacuumizing, the air in die cavity can be discharged mould by metallic screen, and resin outflow can be fewer, can effectively reduce the resin loss while production; In addition,, even if there is a small amount of resin to flow in metallic screen, the resin nail of its curing aftershaping also can be smaller, easily fractures, and can not shine into impact to the demoulding, makes the setting of gum outlet have more flexibility and validity.
Accompanying drawing explanation
Fig. 1 is the structural representation of the embodiment of the present invention;
Fig. 2 is another structural representation of the embodiment of the present invention;
Fig. 3 is the structural representation of metallic screen in the embodiment of the present invention;
Wherein: 1-patrix, 2-counterdie, 3-gum outlet, 4-gum-injecting port, 5-metallic screen.
The specific embodiment
Describe the preferred embodiments of the present invention in detail below in conjunction with accompanying drawing.
As depicted in figs. 1 and 2, the present embodiment provide a kind of be provided with resin dam outlet RTM mould, comprise patrix 1 and counterdie 2, described counterdie 2 is provided with gum-injecting port 4 and some gum outlets 3,3 points of described gum-injecting port 4 and gum outlets are located on the different lateral of described counterdie 2, and described gum outlet 3 is provided with metallic screen 5.Described metallic screen 5 adopts detachable metallic screen 5, at the interior immersion resin of metallic screen 5 and after solidifying, can adopt mechanical system to take out and change.Described metallic screen 5 is column type, as shown in Figure 3, in described metallic screen 5, is spongelike structure, and the sieve diameter of described metallic screen 5 is 0.1 ~ 0.3mm, is preferably 0.2mm, can flow into by effective minimizing resin, discharges but can not affect bubble.
The present embodiment is a kind of is provided with the dam RTM mould of outlet of resin, in use, and when resin fills after die cavity, can be subject to stopping of gum outlet 3 metallic screens 5, because of the reason of resin surface tension force, under the state vacuumizing, air in die cavity can be discharged from metallic screen 5, and resin only can flow out on a small quantity.In resin filling process, can open gum outlet 3 exhausts, until resin gel always.After the resin solidification demoulding, son is pecked in use or drill bit takes out metallic screen 5, is replaced by new metallic screen 5.
This kind is provided with the dam RTM mould of outlet of resin, discharges bubble when discharging opening can dam resin, can effectively reduce the loss of when perfusion resin, reduces the resin that resin is solidified to form at discharging opening simultaneously and follows closely the impact on the demoulding.Pack Demountable metallic sieve 5 at resin discharging opening, after having produced at every turn, replaceable new metallic screen 5.
The beneficial effect of the present embodiment is: the present embodiment is a kind of is provided with the dam RTM mould of outlet of resin, compared with prior art, metallic screen is not in the situation that reducing the gum outlet gross area, reduce the sectional area of single passage, because of the reason of resin surface tension force, under the state vacuumizing, the air in die cavity can be discharged mould by metallic screen, and resin outflow can be fewer, can effectively reduce the resin loss while production; In addition,, even if there is a small amount of resin to flow in metallic screen, the resin nail of its curing aftershaping also can be smaller, easily fractures, and can not shine into impact to the demoulding, makes the setting of gum outlet have more flexibility and validity.
Claims (4)
1. be provided with resin dam outlet a RTM mould, it is characterized in that: comprise patrix (1) and counterdie (2), described counterdie (2) is provided with gum-injecting port (4) and some gum outlets (3), and described gum outlet (3) is provided with metallic screen (5).
As claimed in claim 1 be provided with resin dam outlet RTM mould, it is characterized in that: described gum-injecting port (4) and gum outlet (3) are located on the sidewall of described counterdie (2).
As claimed in claim 1 or 2 be provided with resin dam outlet RTM mould, it is characterized in that: described metallic screen (5) adopts detachable metallic screen (5).
4. the dam RTM mould of outlet of resin that is provided with as claimed in claim 1 or 2, is characterized in that: described metallic screen (5) be column type, and described metallic screen (5) is interior is spongelike structure, and the sieve diameter of described metallic screen (5) is 0.1 ~ 0.3mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410050732.1A CN103847112A (en) | 2014-02-14 | 2014-02-14 | RTM (resin transfer moulding) mould with resin intercepting outlet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410050732.1A CN103847112A (en) | 2014-02-14 | 2014-02-14 | RTM (resin transfer moulding) mould with resin intercepting outlet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103847112A true CN103847112A (en) | 2014-06-11 |
Family
ID=50855462
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410050732.1A Pending CN103847112A (en) | 2014-02-14 | 2014-02-14 | RTM (resin transfer moulding) mould with resin intercepting outlet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103847112A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104441687A (en) * | 2014-09-17 | 2015-03-25 | 重庆海电风能集团有限公司 | RTM manufacture process of wind power cabin cover |
| CN105196568A (en) * | 2015-08-04 | 2015-12-30 | 江苏恒神股份有限公司 | Anti-clogging plug RTM mold |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0698475A2 (en) * | 1994-07-23 | 1996-02-28 | Ford Motor Company Limited | Resin moulding method and apparatus |
| CN1249987A (en) * | 1999-09-13 | 2000-04-12 | 李洪海 | Porous exhaust plug for rubber and plastic mold |
| CN101143492A (en) * | 2007-11-02 | 2008-03-19 | 贵州云马飞机制造厂 | Compression type RTM forming method |
| CN102806615A (en) * | 2012-09-13 | 2012-12-05 | 晟扬精密模具（昆山）有限公司 | Exhaust block |
| CN202826167U (en) * | 2012-10-31 | 2013-03-27 | 宁波日锋模具制造有限公司 | Air exhaust plug for mold |
| CN203726840U (en) * | 2014-02-14 | 2014-07-23 | 江苏恒神纤维材料有限公司 | RTM (resin transfer moulding) mold provided with resin intercepting outlet |
-
2014
- 2014-02-14 CN CN201410050732.1A patent/CN103847112A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0698475A2 (en) * | 1994-07-23 | 1996-02-28 | Ford Motor Company Limited | Resin moulding method and apparatus |
| CN1249987A (en) * | 1999-09-13 | 2000-04-12 | 李洪海 | Porous exhaust plug for rubber and plastic mold |
| CN101143492A (en) * | 2007-11-02 | 2008-03-19 | 贵州云马飞机制造厂 | Compression type RTM forming method |
| CN102806615A (en) * | 2012-09-13 | 2012-12-05 | 晟扬精密模具（昆山）有限公司 | Exhaust block |
| CN202826167U (en) * | 2012-10-31 | 2013-03-27 | 宁波日锋模具制造有限公司 | Air exhaust plug for mold |
| CN203726840U (en) * | 2014-02-14 | 2014-07-23 | 江苏恒神纤维材料有限公司 | RTM (resin transfer moulding) mold provided with resin intercepting outlet |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104441687A (en) * | 2014-09-17 | 2015-03-25 | 重庆海电风能集团有限公司 | RTM manufacture process of wind power cabin cover |
| CN105196568A (en) * | 2015-08-04 | 2015-12-30 | 江苏恒神股份有限公司 | Anti-clogging plug RTM mold |
| CN105196568B (en) * | 2015-08-04 | 2017-11-17 | 江苏恒神股份有限公司 | Anti-clogging RTM mold |
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| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication | ||
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Application publication date: 20140611 |