CN101850623A - Cushion pad molding method - Google Patents
Cushion pad molding method Download PDFInfo
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- CN101850623A CN101850623A CN200910301246A CN200910301246A CN101850623A CN 101850623 A CN101850623 A CN 101850623A CN 200910301246 A CN200910301246 A CN 200910301246A CN 200910301246 A CN200910301246 A CN 200910301246A CN 101850623 A CN101850623 A CN 101850623A
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- cushion pad
- molding method
- pad molding
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Abstract
The invention relates to a cushion pad molding method which comprises the following steps of: heating and extruding a low-density polyethylene (LDPE) raw material containing a hardening agent so as to form a polyethylene sheet; heating the polyethylene sheet; extending the polyethylene sheet; putting the polyethylene sheet in a mould so as to mold a cushion pad; cooling the mould; and demoulding the cushion pad. In the production method of the cushion pad, the LDPE raw material does not need to be foamed, thus time is not needed to be spent on a semi-finished sheet in volatilizing foaming gas so as to shorten the production time, which is beneficial to improving the production efficiency.
Description
Technical field
The present invention relates to a kind of forming method of buffering pad.
Background technology
The method of existing production buffering pad generally includes following steps: foam after LDPE (Low Density Polyethylene, that is, the low density polyethylene (LDPE)) raw materials melt; Cool off after the foaming, extrude the semi-finished product sheet material again; Waited to deposit 7-15 days, behind the semi-finished product sheet material volatilization foamed gas wherein; Heat on surface to the semi-finished product sheet material, make between semi-finished product sheet material and the semi-finished product sheet material compound, to obtain the semi-finished product sheet material behind thicker compound of thickness; At last, cut again, punching press and adhesion process, thereby obtain needed buffering pad.
In the method for above-mentioned production buffering pad, need foam to raw material, and after treating extrusion sheet, needing to spend time of 7-15 days again makes foamed gas volatilization in the semi-finished product sheet material, therefore, the production cycle that this method of producing buffering pad spends is longer, is unfavorable for the raising of production efficiency.
Summary of the invention
The invention provides a kind of forming method of the buffering pad that helps enhancing productivity.
A kind of cushion pad molding method may further comprise the steps: heating and extruding contain the low density polyethylene (LDPE) raw material that increases hard agent, to form polyethylene sheets; The heating polyethylene sheets; The extension polyethylene sheets; Polyethylene sheets is put into mould, with the moulding buffering pad; Cooling die is with the buffering pad demoulding.
In the production method of above-mentioned buffering pad, therefore the LDPE raw material need not, not need spended time to wait for semi-finished product sheet material volatilization foamed gas wherein, thereby shorten the production time through foaming, is beneficial to the raising of production efficiency.
Description of drawings
Fig. 1 is the flow chart of a better embodiment buffering pad production method.
The specific embodiment
As shown in Figure 1, be the flow chart of a better embodiment buffering pad production method 100.Cushion pad molding method 100 may further comprise the steps:
S101, face adds 0.5% PP and increases hard agent in LDPE (Low Density Polyethylene, that is, low density polyethylene (LDPE)) raw material, and in the present embodiment, the composition that PP increases hard agent is polypropylene and maleic anhydride.
S102 transfers to 170 degree~200 degree with the casting machine temperature, treat the LDPE raw materials melt after, extruding forms PE (Polyethylene, that is, polyethylene) sheet material.Wherein, PP increases hard agent in order to increase hardness and toughness, and the PE sheet material toughness and the hardness that make extruding come out are higher.
S103 imports the PE sheet material, and by pottery or quartz plate the PE sheet material is heated, and makes the PE sheet material reach softening point.And, can adjust heating-up temperature according to the speed of sheet material input, heating-up temperature generally is controlled between 140 degree~170 degree, generally is controlled at 1-5 heat time heating time between second.
S105 extends the PE sheet material, makes it smooth.
S107 enters in the mould PE sheet material, by plastics sucking moulding, makes it to form product.The atmospheric pressure of plastics sucking moulding is decided according to the complexity of shaped article or the thickness of PE sheet material generally at 56KG.The temperature of mould is preferably 50 degree~80 degree, so that the follow-up demoulding.
S109, the cooling and the demoulding.In the present embodiment, mould is cooled off, in other real-time modes, also can cool off by the mode of cooling water of circulation by air-cooled mode.The time of cooling is generally 2-20 second.After to be cooled the finishing, carry out the demoulding, can obtain needed buffering pad.
In above-mentioned cushion pad molding method 100, face has added PP and has increased hard agent in the LDPE raw material, thereby can squeeze out toughness and the higher semi-finished product PE sheet material of hardness, so that as the buffering pad of product.In addition, therefore above-mentioned LDPE raw material need not, not need spended time to wait for semi-finished product sheet material volatilization foamed gas wherein, thereby shorten the production time through foaming, is beneficial to the raising of production efficiency.
Claims (10)
1. cushion pad molding method may further comprise the steps:
Heating and extruding contain the low density polyethylene (LDPE) raw material that increases hard agent, to form polyethylene sheets;
The heating polyethylene sheets;
The extension polyethylene sheets;
Polyethylene sheets is put into mould, with the moulding buffering pad;
Cooling die is with the buffering pad demoulding.
2. cushion pad molding method as claimed in claim 1 is characterized in that: describedly increase hard agent and account for 0.5% of low density polyethylene (LDPE) raw material.
3. cushion pad molding method as claimed in claim 1 is characterized in that: the described composition that increases hard agent is polypropylene and maleic anhydride.
4. cushion pad molding method as claimed in claim 1 is characterized in that: the heating-up temperature of described low density polyethylene (LDPE) raw material is 170 degree~200 degree.
5. cushion pad molding method as claimed in claim 1 is characterized in that: described polyethylene sheets heats by pottery or quartz plate.
6. cushion pad molding method as claimed in claim 1 is characterized in that: the heating-up temperature of described polyethylene sheets is between 140 degree~170 degree, and heat time heating time is at 1-5 between second.
7. cushion pad molding method as claimed in claim 1 is characterized in that: described buffering pad is by plastics sucking moulding.
8. cushion pad molding method as claimed in claim 7 is characterized in that: the atmospheric pressure of described plastics sucking moulding is at 5-6KG.
9. cushion pad molding method as claimed in claim 8 is characterized in that: the temperature of described mould is 50 degree~80 degree.
10. cushion pad molding method as claimed in claim 9 is characterized in that: described mould is to cool off by the cooling water that circulates, and be 2-20 second cool time.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN200910301246A CN101850623A (en) | 2009-03-31 | 2009-03-31 | Cushion pad molding method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN200910301246A CN101850623A (en) | 2009-03-31 | 2009-03-31 | Cushion pad molding method |
Publications (1)
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CN101850623A true CN101850623A (en) | 2010-10-06 |
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Family Applications (1)
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CN200910301246A Pending CN101850623A (en) | 2009-03-31 | 2009-03-31 | Cushion pad molding method |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107245199A (en) * | 2017-05-23 | 2017-10-13 | 江阴华东装饰材料有限公司 | The preparation method of imitative curtain wall stained glass PVC hard sheets |
US10308542B2 (en) | 2015-06-26 | 2019-06-04 | Corning Incorporated | Apparatus and method for reforming sheet material |
-
2009
- 2009-03-31 CN CN200910301246A patent/CN101850623A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10308542B2 (en) | 2015-06-26 | 2019-06-04 | Corning Incorporated | Apparatus and method for reforming sheet material |
CN107245199A (en) * | 2017-05-23 | 2017-10-13 | 江阴华东装饰材料有限公司 | The preparation method of imitative curtain wall stained glass PVC hard sheets |
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Legal Events
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C06 | Publication | ||
PB01 | Publication | ||
C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20101006 |