CN109571846A - A kind of EPP seat foaming mould and foam process - Google Patents
A kind of EPP seat foaming mould and foam process Download PDFInfo
- Publication number
- CN109571846A CN109571846A CN201910031154.XA CN201910031154A CN109571846A CN 109571846 A CN109571846 A CN 109571846A CN 201910031154 A CN201910031154 A CN 201910031154A CN 109571846 A CN109571846 A CN 109571846A
- Authority
- CN
- China
- Prior art keywords
- epp
- foaming mould
- steel wire
- cope plate
- mold core
- 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.)
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Classifications
-
- 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
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/34—Auxiliary operations
- B29C44/58—Moulds
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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
- B29C33/12—Moulds or cores; Details thereof or accessories therefor with incorporated means for positioning inserts, e.g. labels
- B29C33/14—Moulds or cores; Details thereof or accessories therefor with incorporated means for positioning inserts, e.g. labels against the mould wall
- B29C33/16—Moulds or cores; Details thereof or accessories therefor with incorporated means for positioning inserts, e.g. labels against the mould wall using magnetic means
-
- 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
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/02—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles
- B29C44/12—Incorporating or moulding on preformed parts, e.g. inserts or reinforcements
-
- 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
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/34—Auxiliary operations
- B29C44/60—Measuring, controlling or regulating
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Abstract
The invention discloses a kind of EPP seat foaming mould and foam process, its mold includes cope plate and lower template, upper mold core is provided in cope plate, lower mold core is provided in lower template, multiple Blind locating holes are provided at the lower surface edge of upper mold core, the embedded insert that is magnetic of Blind locating holes, each magnetism insert bottom are adsorbed with skeleton steel wire, and adjacent skeleton steel wire is end to end and all skeleton steel wires enclose and the matched shape in seating product outer.Its technique is respectively embedded in magnetic insert in the corresponding Blind locating holes of cope plate, end to end skeleton steel wire stabilization is adsorbed on magnetic insert bottom again, it closes cope plate and lower template group is combined into foaming mould, formed being injected in mold after EPP foam particle load pressure using spray gun.EPP raw material and skeleton steel wire can be integrally formed by foam process and its matched foaming mould by the present invention, increase the intensity on molding back seat chair edge at one's side, thus avoid seat after compression with chair cover mutual dislocation.
Description
Technical field
The present invention relates to auto parts and components processing technique fields, and in particular to a kind of EPP seat foaming mould and the work that foams
Skill.
Background technique
As one of components most important in automobile, the loss of weight of seat is always the focal point of automaker.Mesh
Preceding for automotive seat, skeleton is mostly iron and steel material quality, so that skeleton part is accounted for about the 50~60% of total weight, in order to effectively subtract
The weight of small chair framework, most producer are made seat of EPP material, and EPP material has preferable intensity, hardness and suction
Energy characteristic, and recovery utilization rate is high, and then can avoid making the material become automobile bone in seat positioned inside steel skeleton
One of frame lightweight research main material.
EPP material in the application that seat manufactures there is also some problems, such as seat integrally use EPP foaming materials at
Type, although integral strength performance is close to the intensity with steel framework seat chair, its edge of seat of EPP foamed material production
Intensity is too low, is easy to be pressurized severely deformed, misplace so as to cause chair cover and seat, restores to get up very troublesome.Therefore it to design
A kind of entirety lightweight and the EPP seat of chair body edge strength can be reinforced.
Summary of the invention
The purpose of the present invention is to provide a kind of EPP seat foaming mould and foam process, by the foam process and match
The foaming mould of set can produce a kind of whole lightweight and the high EPP seat of chair body edge strength.
The purpose of the present invention is what is be achieved through the following technical solutions: a kind of EPP seat foaming mould, including cope plate and
Lower template is provided in the cope plate for the molding upper mold core of seating product, is provided in the lower template for seat
The lower mold core of formed product is provided with multiple Blind locating holes at the lower surface edge of the upper mold core, and Blind locating holes are embedded to be magnetic
Insert, each magnetism insert bottom are adsorbed with skeleton steel wire, and adjacent skeleton steel wire is end to end and all skeleton steel wires enclose
At with the matched shape in seating product outer.
Further, the magnetic insert includes integrally formed upper mosaics and lower positioning body, and the upper mosaics is inserted
It connects in Blind locating holes, the pilot hole of the lower positioning body and seating product outer cooperates.
Further, the lower positioning body is cylindrical, and lower positioning body bottom is provided with for the recessed of locating framework steel wire
Slot.
Further, the upper mold core lower surface is additionally provided with the inserted block contacted with lower mold core.
A kind of foam process using preceding claim foaming mould production EPP seat, magnetic insert is respectively embedded into
It is adsorbed on magnetic insert bottom in the corresponding Blind locating holes of cope plate, then by end to end skeleton steel wire stabilization, is closed
Template and lower template group are combined into foaming mould, utilize in spray gun injection mold, carry out to mold pre- after EPP foam particle is carried pressure
Heat makes mold surface temperature reach 165~170 DEG C, then is passed through into mold high-temperature steam and makes EPP foam particle expansion and welding
It forms together, mold is cooled to 60~70 DEG C of progress stripping operations, the seating product after demoulding is subjected to drying and shaping.
Further, the seating product after demoulding is placed in drying chamber, drying temperature is 80~100 DEG C.
EPP raw material and skeleton steel wire can be integrally formed by the present invention by foam process and its matched foaming mould,
Increase the intensity on molding back seat chair edge at one's side, so that seat be avoided, with chair cover mutual dislocation, and to can guarantee chair after compression
The support strength of edge each point at one's side puts forth effort position for human body and provides stable support；Simultaneously by being installed in mold of the invention
Multiple magnetism inserts can not only mold fixed pilot hole on the seat, but also can be stablized skeleton steel wire by magnetive attraction
Absorption, to be integrally formed in the inner cavity at seat edge, this molding mode is easy to be economical, can be saved for enterprise largely at
This.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of foaming mould in the present invention；
Fig. 2 is the structural schematic diagram of lower template in the present invention；
Fig. 3 is the partial structure diagram of foaming mould in the present invention；
Fig. 4 is the structural schematic diagram of cope plate in the present invention；
Fig. 5 is the connection schematic diagram of magnetic insert and skeleton steel wire in the present invention；
Fig. 6 is the structural schematic diagram of magnetic insert in the present invention；
Fig. 7 is the structural schematic diagram of seating product in the present invention.
Marked in the figure: 1- cope plate；2- lower template；3- magnetism insert；4- seating product；5- skeleton steel wire；6- inserted block；
The upper outside plate of 11-；12- upper mold core；Outside plate under 21-；22- lower mold core；The upper mosaics of 31-；Positioning body under 32-；41- pilot hole.
Specific embodiment
As shown in FIG. 1 to FIG. 7, EPP seat foaming mould provided in this embodiment includes cope plate 1, lower template 2 and more
Section skeleton steel wire 5, the mold that cope plate 1 and lower template 2 form is mounted in EPP foam molding machine and is worked.On described
Template 1 includes upper outside plate 11 and is arranged in upper outside plate 11 and is used for the molding upper mold core 12 of seating product 4,2 in lower template
Including lower outside plate 21 and it is arranged in lower outside plate 21 and is used for the molding lower mold core 22 of seating product 4.In order to by seating product 4
It is integrally formed with skeleton steel wire 5, is uniformly machined with multiple Blind locating holes, each positioning at the lower surface edge of the upper mold core 12
Blind hole is embedded with the magnetic insert 3 being adapted to it, and specifically, magnetic insert 3 includes integrally formed upper mosaics 31 and lower fixed
Position body 32, the upper mosaics 31 is in quadrangular shape and is a tight fit in Blind locating holes, and the lower positioning body 32 is using magnetic material
Material production is simultaneously cylindrical, and lower positioning body 32 and the pilot hole 41 of 4 outer of seating product cooperate, the bottom of each lower positioning body 32
Portion is machined with the groove for positioning single skeleton steel wire 5, i.e. groove shapes are matched with the shape of skeleton steel wire 5, can increase
The stability of skeleton steel wire 5.Adjacent skeleton steel wire 5 is end to end and all skeleton steel wires 5 enclose and 4 outer of seating product
Entire skeleton steel wire 5 correspondence is adsorbed on be magnetic 3 lower surface of insert, closes cope plate 1 by the shape matched, can be by skeleton
The type that steel wire 5 is placed in mold is intracavitary, is integrally formed with EPP foam material.
The molded safety carrying spigots on seating product 4 for convenience, 12 lower surface of upper mold core is additionally provided with and lower die
The inserted block 6 that core 22 contacts, it is preferable that the top and bottom end of inserted block 6 are plugged on upper mold core 12 respectively and lower mold core 22 is corresponding slotting
In hole, safe carrying spigots can be reserved after molding.
The present embodiment additionally provides a kind of foam process using above-mentioned foaming mould production EPP seat, specific steps
It is to be respectively embedded in magnetic insert 3 in the corresponding Blind locating holes of upper mold core 12, then end to end skeleton steel wire 5 is stablized and is inhaled
It is attached to magnetic 3 bottom of insert, cope plate 1 is closed with 2 groups of lower template and is combined into foaming mould, utilized after EPP foam particle is carried pressure
Spray gun injects in the mold, preheats to mold, so that mold surface temperature is reached 165~170 DEG C, then be passed through height into mold
Warm steam makes EPP foam particle expansion and is welded together and forms, then mold is cooled to 60~70 DEG C of progress stripping operations,
Seating product 4 after demoulding is placed in drying chamber and carries out drying and shaping, drying temperature is 80~100 DEG C.
Before EPP foam grain forming, need to enhance the pressure inside feed particles by carrying pressure, to produce density
Lower moulded parts.In addition, when being passed through high-temperature steam in mold, first by top steam inlet valve in EPP foam molding machine and
The condensed water elimination valve of lower section, high-temperature steam are washed away from top to bottom, and vaporium is discharged in air.Then side is opened again
Steam inlet valve and condensed water elimination valve, carry out transversal flow, finally carry out pressure holding, open all steam inlet valves,
Condensed water elimination valve is closed, so that internal pressure is gradually arrived reach to peak value and the two-sided steaming of raw material progress is melted.
The above is only the preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto, any
The transformation and replacement carried out based on technical solution provided by the present invention and inventive concept should all be covered in protection model of the invention
In enclosing.
Claims (6)
1. a kind of EPP seat foaming mould, including cope plate and lower template, be provided in the cope plate for seating product at
The upper mold core of type is provided with for the molding lower mold core of seating product in the lower template, it is characterised in that: the upper mold core
Multiple Blind locating holes, the embedded insert that is magnetic of Blind locating holes are provided at lower surface edge, each magnetism insert bottom is adsorbed with
Skeleton steel wire, adjacent skeleton steel wire is end to end and all skeleton steel wires enclose and the matched shape in seating product outer.
2. EPP seat foaming mould according to claim 1, it is characterised in that: the magnetism insert includes being integrally formed
Upper mosaics and lower positioning body, the upper mosaics is plugged in Blind locating holes, the lower positioning body and seating product outer
Pilot hole cooperation.
3. EPP seat foaming mould according to claim 2, it is characterised in that: the lower positioning body is cylindrical, and under
Positioning body bottom is provided with the groove for locating framework steel wire.
4. EPP seat foaming mould described in any claim according to claim 1~3, it is characterised in that: the upper mold
Core lower surface is additionally provided with the inserted block contacted with lower mold core.
5. a kind of foam process using the production EPP seat of foaming mould described in claim 4, it is characterised in that: inlay magnetism
Block is respectively embedded in the corresponding Blind locating holes of cope plate, then end to end skeleton steel wire stabilization is adsorbed on magnetic insert bottom
Portion, closes cope plate and lower template group is combined into foaming mould, utilizes in spray gun injection mold after EPP foam particle is carried pressure, right
Mold is preheated, and mold surface temperature is made to reach 165~170 DEG C, then is passed through high-temperature steam into mold and is made EPP foam particle
Expand and be welded together and form, mold is cooled to 60~70 DEG C of progress stripping operations, by the seating product after demoulding into
Row drying and shaping.
6. foam process according to claim 5, it is characterised in that: the seating product after demoulding is placed in drying chamber, is dried
Temperature is 80~100 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910031154.XA CN109571846A (en) | 2019-01-14 | 2019-01-14 | A kind of EPP seat foaming mould and foam process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910031154.XA CN109571846A (en) | 2019-01-14 | 2019-01-14 | A kind of EPP seat foaming mould and foam process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109571846A true CN109571846A (en) | 2019-04-05 |
Family
ID=65916348
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910031154.XA Pending CN109571846A (en) | 2019-01-14 | 2019-01-14 | A kind of EPP seat foaming mould and foam process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109571846A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111660903A (en) * | 2020-06-18 | 2020-09-15 | 安徽永锋防护科技股份有限公司 | Light sleeper of automobile and forming process thereof |
| CN113199690A (en) * | 2021-05-26 | 2021-08-03 | 新子元(上海)科技发展有限公司 | Sizing device and sizing method for PP automobile seat |
| CN114193695A (en) * | 2021-12-20 | 2022-03-18 | 马翠芝 | Self-cooling foaming forming device of EPP material for automobile decoration |
Citations (6)
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| DE2917739A1 (en) * | 1979-05-02 | 1980-11-06 | Funck Herbert | Foamed plastics articles moulded without cavities with constant mass - by fitting dead spaces in cavities with vents closed by porous foamed plastics members |
| EP1967344A2 (en) * | 2007-03-08 | 2008-09-10 | Angelo Candiracci | Method and device for the production of expanded polystyrene blocks |
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| CN205522207U (en) * | 2016-04-07 | 2016-08-31 | 顾家家居股份有限公司 | Latex bench design mould |
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| CN207044575U (en) * | 2017-06-30 | 2018-02-27 | 上海子元汽车零部件有限公司 | A kind of mould of steel wire skeleton dual density EPP chair frameworks |
-
2019
- 2019-01-14 CN CN201910031154.XA patent/CN109571846A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2917739A1 (en) * | 1979-05-02 | 1980-11-06 | Funck Herbert | Foamed plastics articles moulded without cavities with constant mass - by fitting dead spaces in cavities with vents closed by porous foamed plastics members |
| EP1967344A2 (en) * | 2007-03-08 | 2008-09-10 | Angelo Candiracci | Method and device for the production of expanded polystyrene blocks |
| CN104105582A (en) * | 2012-02-13 | 2014-10-15 | 株式会社普利司通 | Mold, method for manufacturing molded foam body, and molded foam body |
| CN205522207U (en) * | 2016-04-07 | 2016-08-31 | 顾家家居股份有限公司 | Latex bench design mould |
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Non-Patent Citations (1)
| Title |
|---|
| 康娜莉亚弗里彻: "《塑料装备与加工技术》", 31 December 2014, 湖南科学技术出版社 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111660903A (en) * | 2020-06-18 | 2020-09-15 | 安徽永锋防护科技股份有限公司 | Light sleeper of automobile and forming process thereof |
| CN111660903B (en) * | 2020-06-18 | 2022-10-18 | 安徽永锋防护科技股份有限公司 | Light sleeper of automobile and forming process thereof |
| CN113199690A (en) * | 2021-05-26 | 2021-08-03 | 新子元(上海)科技发展有限公司 | Sizing device and sizing method for PP automobile seat |
| CN114193695A (en) * | 2021-12-20 | 2022-03-18 | 马翠芝 | Self-cooling foaming forming device of EPP material for automobile decoration |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190405 |
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| RJ01 | Rejection of invention patent application after publication |