CN207190125U - A kind of closed pore PU foaming mould structures - Google Patents
A kind of closed pore PU foaming mould structures Download PDFInfo
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- CN207190125U CN207190125U CN201720757592.0U CN201720757592U CN207190125U CN 207190125 U CN207190125 U CN 207190125U CN 201720757592 U CN201720757592 U CN 201720757592U CN 207190125 U CN207190125 U CN 207190125U
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- air reservoir
- blast pipe
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Abstract
The utility model discloses a kind of closed pore PU foaming mould structures, including upper and lower mould, and air reservoir is arranged below in mold, is provided with blast pipe, blast pipe and atmosphere in mold, blast pipe is connected by discharge with air reservoir.Air reservoir all standing die surface, caused gas extrusion is to air reservoir when closed pore PU foams, when the gas surplus in air reservoir, gas in air reservoir, into blast pipe, gas is drained into air by discharge, so as to reduce product void fraction, foaming success rate is improved, saves repair procedure, reduces production cost.
Description
Technical field
Auto parts machinery manufacture field is the utility model is related to, refers specifically to a kind of closed pore PU foaming mould structures.
Background technology
At present, in bus interior industry, polyurethane foam technology is on the products such as air channel, baseplate of luggage rack with very wide
General, manufacture air channel, the PU closed-cell foams mould of the product such as baseplate of luggage rack are typically begun to rehearse stomata using mould both sides or upper mould
Mode is exhausted, and this two kinds of exhaust modes are because reasons in structure uniformly can not comprehensively cover die surface, and in actual production,
Product vacuole is usually formed in wire drawing and gel phase, and all there may be now PU in whole die surface optional position for vacuole
Material has lost flowability, and most vacuoles are also not moved to cured during the steam vent set by mould, cause gas in vacuole can not
Discharge, product vacuole increase, and cause product defects, these faulty goods need to repair, and add production cost.
The content of the invention
Technical problem to be solved in the utility model is to overcome prior art insufficient, there is provided a kind of closed pore PU foaming moulds
Lamps structure, die surface is uniform, all standing steam vent, effectively solves the problems, such as that bubble can not move caused vacuole, can
By excess gas discharge caused by closed pore PU foaming, product void fraction is reduced.
In order to solve the above-mentioned technical problem, the utility model adopts the following technical scheme that：Closed pore PU foaming mould structures,
Including upper and lower mould, air reservoir is arranged below in mold, air reservoir all standing mold lower surface, the row of being provided with mold
Tracheae, blast pipe and atmosphere, blast pipe are connected by discharge with air reservoir.
Described upper and lower mould is provided with heating tube, there is provided the environment temperature needed for foamed material foaming also increases simultaneously
Gas temperature, temperature difference is formd with ambient temperature, accelerate the speed of gas discharge, increase exhaust efficiency.
Due to closed pore PU foaming mould structures, air reservoir is arranged below in mold, blast pipe is provided with mold, arrange
Tracheae and atmosphere, blast pipe are connected by discharge with air reservoir, air reservoir all standing die surface, when closed pore PU foams
Caused gas extrusion is to air reservoir, and when the gas surplus in air reservoir, the gas in air reservoir is entered by discharge
Enter blast pipe, gas is drained into air.So as to reduce product void fraction, foaming success rate is improved, saves repair procedure, is dropped
Low production cost.
Following table is that new and old foaming mould produces the foamed products repeated detection generation vacuole quantity table of comparisons
By data in upper table, use the novel die of the present invention greatly to reduce the void fraction of product, put down
Equal cavitation number is reduced to 1.1/m from 4.6/m, and qualification rate improves 78%, significant effect.
The utility model is described in further detail below in conjunction with the accompanying drawings.
Brief description of the drawings
Fig. 1 is closed pore PU foaming mould structural representations
Fig. 2 is closed pore PU foaming mould structure partial A enlarged drawings
Mould structure part A enlarged drawings when Fig. 3 is covered with closed pore PU expanded materials
Embodiment
With reference to figure 1, Fig. 2, Fig. 3, closed pore PU foaming mould structures, including upper and lower mould 5,1, set below mold 5
There is an air reservoir 3, the lower surface of 3 all standing mold of air reservoir 5, be provided with blast pipe 4, blast pipe 4 and atmosphere in mold 5,
Blast pipe 4 is connected by discharge 7 with air reservoir 3.
Described upper and lower mould is provided with heating tube 2, there is provided the environment temperature needed for foamed material foaming also raises simultaneously
Gas temperature, with the external world forms temperature difference, accelerates the speed of gas discharge, increases exhaust efficiency.
In partial enlargement Fig. 2,3, the extruding of upper and lower mould 5,1 and the temperature that has of mould heating, in PU foamed materials 8
Gas and ambient temperature form certain pressure difference and temperature difference, and the generation gases 6 of closed pore PU material 8 are extruded to air reservoir 3 during foaming,
When the gas 6 in air reservoir 3 is superfluous, the gas 6 in air reservoir 3 is by discharge 7, into blast pipe 4, by the row of gas 6
Into air.So as to reduce product void fraction, increase one step foaming success rate, reduce production cost, improve production efficiency.
Embodiment 1
Closed pore PU foaming mould structures, including upper and lower mould, the upper bottom surface ripple of mould 5 is carved out first by CNC equipment
Type air reservoir 3；The uniform pre-buried circular discharge 7 and blast pipe 4 communicated with air reservoir 3, discharge 7 before upper mould 5 is poured into a mould
Air reservoir 3 and blast pipe 4, blast pipe 4 and atmosphere are connected, in the uniform pre-buried circular heating tube 2 of upper and lower mould, then is installed
Skeleton girder steel, pours into mould.When closed pore PU foamed materials 8 produce, in the clamping pressure and mould internal-external temperature difference of upper and lower mould 5,1
In the presence of, the upward mould gas storage of bubble 6, gas collection, discharged by blast pipe 4, reduce PU foamed products vacuole and produce, improve product
Quality.
Claims (2)
1. a kind of closed pore PU foaming mould structures, including upper and lower mould, it is characterized in that：Air reservoir is arranged below in mold, stores up
Air drain all standing mold lower surface, is provided with blast pipe, blast pipe and atmosphere in mold, blast pipe by discharge with
Air reservoir connects.
2. closed pore PU foaming mould structures as claimed in claim 1, it is characterized in that：Described upper and lower mould is provided with heating
Pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720757592.0U CN207190125U (en) | 2017-06-27 | 2017-06-27 | A kind of closed pore PU foaming mould structures |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720757592.0U CN207190125U (en) | 2017-06-27 | 2017-06-27 | A kind of closed pore PU foaming mould structures |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207190125U true CN207190125U (en) | 2018-04-06 |
Family
ID=61785152
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720757592.0U Active CN207190125U (en) | 2017-06-27 | 2017-06-27 | A kind of closed pore PU foaming mould structures |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207190125U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107214904A (en) * | 2017-06-27 | 2017-09-29 | 湖南亚太实业有限公司 | A kind of closed pore PU foaming mould structures |
-
2017
- 2017-06-27 CN CN201720757592.0U patent/CN207190125U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107214904A (en) * | 2017-06-27 | 2017-09-29 | 湖南亚太实业有限公司 | A kind of closed pore PU foaming mould structures |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Blind hole PU foaming mold structure Effective date of registration: 20200623 Granted publication date: 20180406 Pledgee: Changsha Bank city branch of Limited by Share Ltd. Pledgor: ARTIE INDUSTRIAL Co.,Ltd. CHINA Registration number: Y2020980003434 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| CP02 | Change in the address of a patent holder |
Address after: No.28, Dazhong North Road, Changsha Economic and Technological Development Zone, Changsha, Hunan 410000 Patentee after: ARTIE INDUSTRIAL Co.,Ltd. CHINA Address before: No. 595, Zhongyi 2nd Road, Muyun Industrial Park, nantuoling, Changsha, Hunan 410119 Patentee before: ARTIE INDUSTRIAL Co.,Ltd. CHINA |
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| CP02 | Change in the address of a patent holder | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20220331 Granted publication date: 20180406 Pledgee: Changsha Bank city branch of Limited by Share Ltd. Pledgor: ARTIE INDUSTRIAL Co.,Ltd. CHINA Registration number: Y2020980003434 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Closed cell PU foaming mould structure Effective date of registration: 20220419 Granted publication date: 20180406 Pledgee: Changsha Bank city branch of Limited by Share Ltd. Pledgor: ARTIE INDUSTRIAL Co.,Ltd. CHINA Registration number: Y2022980004188 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20230627 Granted publication date: 20180406 Pledgee: Changsha Bank city branch of Limited by Share Ltd. Pledgor: ARTIE INDUSTRIAL Co.,Ltd. CHINA Registration number: Y2022980004188 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right |