CN207105432U - A kind of polyurethane moulding foaming molding mold - Google Patents
A kind of polyurethane moulding foaming molding mold Download PDFInfo
- Publication number
- CN207105432U CN207105432U CN201721007991.1U CN201721007991U CN207105432U CN 207105432 U CN207105432 U CN 207105432U CN 201721007991 U CN201721007991 U CN 201721007991U CN 207105432 U CN207105432 U CN 207105432U
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- CN
- China
- Prior art keywords
- molding mold
- steam vent
- air
- polyurethane
- foaming molding
- Prior art date
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- 238000000465 moulding Methods 0.000 title claims abstract description 82
- 238000005187 foaming Methods 0.000 title claims abstract description 48
- 229920002635 polyurethane Polymers 0.000 title claims abstract description 35
- 239000004814 polyurethane Substances 0.000 title claims abstract description 35
- 239000003292 glue Substances 0.000 claims abstract description 39
- 229920005830 Polyurethane Foam Polymers 0.000 claims abstract description 34
- 239000011496 polyurethane foam Substances 0.000 claims abstract description 34
- 238000000034 method Methods 0.000 claims abstract description 9
- 239000002390 adhesive tape Substances 0.000 claims description 10
- 238000003780 insertion Methods 0.000 claims description 3
- 230000037431 insertion Effects 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 230000007547 defect Effects 0.000 abstract description 14
- 238000012423 maintenance Methods 0.000 abstract description 5
- 238000012797 qualification Methods 0.000 abstract description 4
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000007493 shaping process Methods 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- 150000002148 esters Chemical class 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Landscapes
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The utility model provides a kind of polyurethane moulding foaming molding mold, including：Die cap with steam vent；And air-permeable layer, it is arranged on die cap, to prevent polyurethane foam glue from entering in steam vent in polyurethane foam glue foamed forming process.Steam vent is provided with die cap, polyurethane moulding foaming molding mold after treating molding foaming product and being poured into a mould during foaming, the gas of foamed products inner chamber to be molded may pass through air-permeable layer and be discharged from steam vent, air chamber will not be formed, meanwhile air-permeable layer prevents polyurethane foam glue from entering steam vent and block steam vent.The defects of pit is not present in the visible surface of the polyurethane foam glue of curing molding on foamed products to be molded after die cap of the dismounting with air-permeable layer, visible surface maintenance need not be carried out, the aesthetic property and qualification rate of product after being molded has been effectively ensured, reduce scrapping and reprocess because of surface defect, improve yield rate, cost is reduced, shortens delivery date.
Description
Technical field
The application is related to food processing field, espespecially a kind of polyurethane moulding foaming molding mold.
Background technology
The molding embedding of electronic product is carried out using polyurethane foam glue 700 (hard foamed glue and soft foamed glue), it is produced
(foamed products 500 i.e. to be molded) are carried out process successively usually after the completion of assembling product, debugging and test：
It is die-filling：Foamed products 500 to be molded are put into the special polyurethane moulding foaming molding mold of product；
Embedding：By the quantitative embedding of polyurethane foam glue 700 into the inner chamber of foamed products 500 to be molded；
Foaming：Physical-chemical reaction occurs for polyurethane foam glue 700, and volume starts expansion until reaching die cap 200 and filling
The inner chamber of full whole foamed products 500 to be molded, while the curing molding of polyurethane foam glue 700 (as shown in Figure 1)；
The demoulding：The product after embedding is obtained after the demoulding.
After the demoulding, the polyurethane foam glue 700 of curing molding turns into the visible surface (upper table of foamed products 500 to be molded
Face), the surface area is larger, and especially when electronic product internal structure complexity, " pit " of out-of-flatness occurs in the surface, makes
The outward appearance of foamed products 500 to be molded is unqualified, even if being repaired to the surface, not only outward appearance still unsightly, and consumes
When taking a lot of work, increase cost, can also influence the normal friendship phase of foamed products 500 to be molded, label 100 is die body.
Utility model content
The reason for producing " pit "：
1st, during 700 foamable reaction of polyurethane foam glue, expanded vertically upward from the intracavity bottom of foamed products 500 to be molded
Foaming, but because the expansion rate of each point is variant, especially when the internal part 510 of foamed products 500 to be molded hinders
During gear foaming, polyurethane foam glue 700 can be caused to reach the Time Inconsistency of die cap 200, so as to first reach the poly- ammonia of die cap 200
Ester foaming glue 700 and die cap 200 surround air chamber 600 together, and the air in air chamber 600 is without discharge path, thus most end form
Into the surface defect of " pit "；
2nd, bubble caused by cast polyurethane foamed glue 700, it is final because there is no discharge path, and form " pit "
Surface defect.
In order to solve the above-mentioned technical problem, this application provides a kind of polyurethane moulding foaming molding mold, mould is being treated
After modeling foamed products 500 are poured into a mould, the polyurethane foam glue 700 of curing molding is shown in Table on foamed products 500 to be molded
The defects of pit is not present in face, and without carrying out visible surface maintenance, it is beautiful that the foamed products to be molded 500 after cast have been effectively ensured
The property seen and qualification rate.
In order to reach the application purpose, this application provides a kind of polyurethane moulding foaming molding mold, including：With row
The die cap of stomata；And air-permeable layer, it is arranged on the die cap, to allow gas to arrange in polyurethane foam glue foamed forming process
Cross, while prevent polyurethane foam glue from entering in the steam vent.
Alternatively, the steam vent includes multiple, and multiple steam vents are covered with the die cap.
Alternatively, multiple steam vents are uniformly arranged in matrix form.
Alternatively, a diameter of 1~2mm of the steam vent.
Alternatively, the pitch between the adjacent steam vent is 6~10mm.
Alternatively, the steam vent is circular hole or rectangular opening.
Alternatively, the polyurethane moulding foaming molding mold also includes：It is provided with the die body of accommodating cavity, the accommodating cavity
Top insertion, there is the die cap lid of air-permeable layer on the die body.
Alternatively, the air-permeable layer is arranged on the surface of the direction accommodating chamber of the die cap.
Alternatively, the air-permeable layer is breathable adhesive tape.
Alternatively, the breathable adhesive tape is overlapping is covered with multilayer.
Compared with prior art, polyurethane moulding foaming molding mold provided by the utility model, including die cap and ventilative
Layer, steam vent is provided with die cap, air-permeable layer is arranged on die cap, and polyurethane moulding foaming molding mold is treating molding foaming
During product foams after being poured into a mould, the gas of foamed products inner chamber to be molded can outwards be arranged by air-permeable layer from steam vent
Go out, air chamber will not be formed between foamed products to be molded and die cap, meanwhile, air-permeable layer prevents polyurethane foam glue from entering row
Stomata and block steam vent.Remove the polyurethane foam glue of curing molding on foamed products to be molded after the die cap with air-permeable layer
Visible surface the defects of pit is not present, without carrying out visible surface maintenance, the aesthetic property after shaping and conjunction has been effectively ensured
Lattice rate, reduce scrapping and reprocess because of surface defect, improve yield rate, reduce cost, shorten delivery date.
Other features and advantage will illustrate in the following description, also, partly become from specification
Obtain it is clear that or being understood by implementing the application.The purpose of the application and other advantages can be by specification, rights
Specifically noted structure is realized and obtained in claim and accompanying drawing.
Brief description of the drawings
Accompanying drawing is used for providing further understanding technical scheme, and a part for constitution instruction, with this
The embodiment of application is used for the technical scheme for explaining the application together, does not form the limitation to technical scheme.
Fig. 1 is the cross section structure diagram after the polyurethane moulding foaming molding mold described in correlation technique is poured into a mould；
Fig. 2 is the section view after the polyurethane moulding foaming molding mold described in the utility model one embodiment is poured into a mould
Structural representation；
Fig. 3 is cuing open after the polyurethane moulding foaming molding mold described in the utility model another embodiment is poured into a mould
Depending on structural representation；
Fig. 4 is cuing open after the polyurethane moulding foaming molding mold described in the utility model further embodiment is poured into a mould
Depending on structural representation；
Fig. 5 is the structural representation of the die cap with air-permeable layer in Fig. 2 to Fig. 3.
Wherein, corresponding relations of the Fig. 2 into Fig. 5 between reference and component names is：
1 die body, 2 die caps, 21 steam vents, 4 air-permeable layers, 5 foamed products to be molded, 51 internal parts, 7 polyurethane foams
Glue.
Embodiment
For the purpose, technical scheme and advantage of the application are more clearly understood, below in conjunction with accompanying drawing to the application
Embodiment be described in detail.It should be noted that in the case where not conflicting, in the embodiment and embodiment in the application
Feature can mutually be combined.
Many details are elaborated in the following description in order to fully understand the application, and still, the application may be used also
By using other be different from it is described here in a manner of implement, therefore, the protection domain of the application is not by following public tool
The limitation of body embodiment.
As shown in figure 1, the reason for producing " pit "：
It is 1st, expanded foamed vertically upward from the intracavity bottom of foamed products to be molded during polyurethane foam glue foamable reaction,
But because the expansion rate of each point is variant, especially when the internal part of foamed products to be molded stops foaming, meeting
Polyurethane foam glue is caused to reach the Time Inconsistency of die cap, so as to which first the polyurethane foam glue of arrival die cap and die cap enclose together
Into air chamber, the air in air chamber ultimately forms the surface defect of " pit " without discharge path；
2nd, bubble caused by cast polyurethane foamed glue, it is final because there is no discharge path, and form the table of " pit "
Planar defect.
The polyurethane moulding foaming molding mold of some embodiments of the application is described below in conjunction with the accompanying drawings.
The polyurethane moulding foaming molding mold that the application provides, as shown in Figure 2 and Figure 5, including：With steam vent 21
Die cap 2；With air-permeable layer 4, it is arranged on the die cap 2, to allow gas to be drained through in polyurethane foam glue foamed forming process,
Ester molding foaming is prevented to enter in the steam vent 21 simultaneously.
Polyurethane moulding foaming molding mold provided by the utility model, steam vent 21, polyurethane mould are provided with die cap 2
Foaming molding mold is moulded during being foamed after treating molding foaming product 5 and being poured into a mould, the inner chamber of foamed products 5 to be molded
Gas can be discharged by air-permeable layer 4 from steam vent 21, will not form air chamber between foamed products to be molded and die cap,
Remove the visible surface of the polyurethane foam glue 7 of curing molding on foamed products 5 to be molded after the die cap 2 with air-permeable layer 4 not
The defects of pit be present, without carrying out visible surface maintenance, the aesthetic property and qualification rate of product after shaping has been effectively ensured, has reduced
Scrapping and reprocess because of surface defect, improves yield rate, reduces cost, shorten delivery date.
Wherein, as shown in Fig. 2 foamed products to be molded 5 have certain intensity, the die cap 2 with air-permeable layer 4 can be direct
Poured into a mould on foamed products 5 to be molded.
In addition, as shown in figure 3, the polyurethane moulding foaming molding mold can also include：It is provided with the mould of accommodating cavity
Body 1, the top insertion of the accommodating cavity, there is the lid of the die cap 2 of air-permeable layer 4 on the die body 1, polyurethane foam glue
Product 5 to be cast is arranged in accommodating chamber in foamed forming process.
The air that air-permeable layer 4 can allow in air chamber 600 described in polyurethane foam glue 7 and correlation technique is by and most
Discharged eventually by steam vent 21, air-permeable layer 4 can also prevent polyurethane foam glue 7 from entering steam vent 21 and block steam vent 21.
Do not carry between 1 and the die cap 2 with air-permeable layer 4 as shown in figure 4, polyurethane foam glue 7 is cast directly over, directly make
Into.
Alternatively, as shown in Figures 2 to 5, the steam vent 21 includes multiple, and multiple steam vents 21 be covered with it is described
Die cap 2, the more effects of quantity of steam vent 21 are better, in order to prevent entering steam vent 21 in the foaming process of polyurethane foam glue 7
Influence exhaust and influence the surface quality of the foamed products to be molded 5 after cast, while meet quickly ventilative requirement, exhaust
The diameter design in hole 21 is 1~2mm；In order to reduce the manufacture difficulty of die cap 2, while ensure the surface of foamed products 5 to be molded
The distance between quality, the adjacent steam vent 21 is 6~10mm.
Further, multiple steam vents 21 are uniformly arranged in matrix form, to ensure that each position can be very on die cap 2
Good is exhausted, and prevents the visible surface of the polyurethane foam glue 7 of curing molding from the defects of pit etc. occur.
Wherein, the steam vent 21 is circular hole, rectangular opening or waist-shaped hole etc., and the purpose of the application, its objective can be achieved
It without departing from design philosophy of the present utility model, will not be repeated here, all should belong in the protection domain of the application.
Wherein, the air-permeable layer 4 is breathable adhesive tape, and breathable adhesive tape does not bond with polyurethane foam glue 7 in itself, it is ensured that treats
The quality of the visible surface of the polyurethane foam glue of curing molding on molding foaming product.Preferably, the breathable adhesive tape is overlapping
One layer, two layers, three layers or four layers etc. is covered with, can be selected according to the thickness of breathable adhesive tape.
Certainly, air-permeable layer 4 can also select nano level screen pack, air-permeable layer can be can effectively through gas and
Any material of polyurethane foam glue transmission etc. can be effectively prevented, can also realize the purpose of the application, its objective is without departing from this reality
It with new design philosophy, will not be repeated here, all should belong in the protection domain of the application.
In summary, polyurethane moulding foaming molding mold provided by the utility model, steam vent is provided with die cap, gather
Urethane molding foaming mould after treating molding foaming product and being poured into a mould during foaming, in foamed products to be molded
The gas of chamber can be discharged by air-permeable layer from steam vent, will not form air between foamed products to be molded and die cap
Chamber, removes after the die cap with air-permeable layer that the visible surface of the polyurethane foam glue of curing molding is not deposited on foamed products to be molded
The pit the defects of, without carrying out visible surface maintenance, the aesthetic property and qualification rate of product after shaping is effectively ensured, has reduced
Scrapping and reprocess because of surface defect, yield rate is improved, cost is reduced, shortens delivery date.
In the description of the present application, term " installation ", " connected ", " connection ", " fixation " etc. all should be interpreted broadly, example
Such as, " connection " can be fixedly connected or be detachably connected, or be integrally connected；Can be joined directly together, can also
It is indirectly connected by intermediary.For the ordinary skill in the art, above-mentioned art can be understood as the case may be
The concrete meaning of language in this application.
In the description of this specification, the description of term " one embodiment ", " some embodiments ", " specific embodiment " etc.
Mean to combine at least one reality that specific features, structure, material or the feature that the embodiment or example describe are contained in the application
Apply in example or example.In this manual, identical embodiment or reality are not necessarily referring to the schematic representation of above-mentioned term
Example.Moreover, description specific features, structure, material or feature can in any one or more embodiments or example with
Suitable mode combines.
Although the embodiment disclosed by the application is as above, described content is only to readily appreciate the application and use
Embodiment, it is not limited to the application.Technical staff in any the application art, is taken off not departing from the application
On the premise of the spirit and scope of dew, any modification and change, but the application can be carried out in the form and details of implementation
Scope of patent protection, still should be subject to the scope of the claims as defined in the appended claims.
Claims (12)
- A kind of 1. polyurethane moulding foaming molding mold, it is characterised in that including：Die cap with steam vent；WithAir-permeable layer, it is arranged on the die cap, to allow gas to be drained through in polyurethane foam glue foamed forming process, hinders simultaneously Only polyurethane foam glue is entered in the steam vent.
- 2. polyurethane moulding foaming molding mold according to claim 1, it is characterised in that the steam vent includes more It is individual, and multiple steam vents are covered with the die cap.
- 3. polyurethane moulding foaming molding mold according to claim 2, it is characterised in that multiple steam vents are in square Configuration is uniformly arranged.
- 4. polyurethane moulding foaming molding mold according to claim 2, it is characterised in that the steam vent it is a diameter of 1~2mm.
- 5. polyurethane moulding foaming molding mold according to claim 2, it is characterised in that between the adjacent steam vent Pitch be 6~10mm.
- 6. polyurethane moulding foaming molding mold according to claim 2, it is characterised in that the steam vent be circular hole or Rectangular opening.
- 7. polyurethane moulding foaming molding mold according to any one of claim 1 to 6, it is characterised in that also include：The die body of accommodating cavity, the top insertion of the accommodating cavity are provided with, the die cap lid with air-permeable layer is mounted in the mould On body.
- 8. polyurethane moulding foaming molding mold according to claim 7, it is characterised in that the air-permeable layer is arranged on institute State on the surface of the direction accommodating cavity of die cap.
- 9. according to the polyurethane moulding foaming molding mold described in claim 8, it is characterised in that the air-permeable layer is ventilative Adhesive tape.
- 10. polyurethane moulding foaming molding mold according to claim 9, it is characterised in that the breathable adhesive tape is overlapping It is covered with multilayer.
- 11. polyurethane moulding foaming molding mold according to any one of claim 1 to 6, it is characterised in that described Gas-bearing formation is breathable adhesive tape.
- 12. polyurethane moulding foaming molding mold according to claim 11, it is characterised in that the breathable adhesive tape is overlapping It is covered with multilayer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721007991.1U CN207105432U (en) | 2017-08-11 | 2017-08-11 | A kind of polyurethane moulding foaming molding mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721007991.1U CN207105432U (en) | 2017-08-11 | 2017-08-11 | A kind of polyurethane moulding foaming molding mold |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207105432U true CN207105432U (en) | 2018-03-16 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721007991.1U Active CN207105432U (en) | 2017-08-11 | 2017-08-11 | A kind of polyurethane moulding foaming molding mold |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207105432U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109591345A (en) * | 2018-12-27 | 2019-04-09 | 山东百华鞋业有限公司 | It is a kind of to reduce the Shooting Technique for injecting big basis bubble |
| CN110450335A (en) * | 2019-07-29 | 2019-11-15 | 吉林省新英海节能科技有限公司 | Low-density EPS mould material preparation facilities for lost foam casting |
| CN112622144A (en) * | 2020-11-30 | 2021-04-09 | 上海复合材料科技有限公司 | Adapter polyurethane co-curing foaming mold and using method |
-
2017
- 2017-08-11 CN CN201721007991.1U patent/CN207105432U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109591345A (en) * | 2018-12-27 | 2019-04-09 | 山东百华鞋业有限公司 | It is a kind of to reduce the Shooting Technique for injecting big basis bubble |
| CN110450335A (en) * | 2019-07-29 | 2019-11-15 | 吉林省新英海节能科技有限公司 | Low-density EPS mould material preparation facilities for lost foam casting |
| CN112622144A (en) * | 2020-11-30 | 2021-04-09 | 上海复合材料科技有限公司 | Adapter polyurethane co-curing foaming mold and using method |
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