CN102431143A - Molding machine head for CO2 high-pressure extrusion formed sheet - Google Patents
Molding machine head for CO2 high-pressure extrusion formed sheet Download PDFInfo
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- CN102431143A CN102431143A CN2011103592799A CN201110359279A CN102431143A CN 102431143 A CN102431143 A CN 102431143A CN 2011103592799 A CN2011103592799 A CN 2011103592799A CN 201110359279 A CN201110359279 A CN 201110359279A CN 102431143 A CN102431143 A CN 102431143A
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- machine head
- lip
- handpiece body
- head body
- molding machine
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- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The invention relates to a molding machine head for a CO2 high-pressure extrusion formed sheet; the molding machine head comprises a machine head body; a mouth mold is arranged at the front of the machine head body; a cavity is arranged in the machine head body; a material inlet is arranged at the side of the machine head body and is communicated with the cavity; clamping plates are arranged on the upper surface and the lower surface of the front end of the machine head body; bolts are arranged at the two sides of the machine head body and are used for connecting the upper clamping plate and the lower clamping plate; the machine head body is an integral small cavity machine head runner; the mouth mold part is provided with a mold lip made of a self-lubricating wear-resistant material and a sizing lip made of an alloy material; and the mold lip is inlaid in an inner hole of the sizing lip. The molding machine head is used for producing XPS (Expanded Polystyrene) panels by using CO2 and CO2 multi-component synergy addition agents and has high bearing pressure; the surfaces of the panels easily crusts; and the molding machine head can continuously and stably produce the CO2 formed XPS panels.
Description
Technical field
The present invention relates to a kind of foaming product device, especially a kind of CO
2High pressure extrusion foaming plate forming head.
Background technology
At present; Domestic plastics physical blowing enterprise mostly adopts HCFC22 or 142B to make blowing agent, because it contains fluorine chlorine molecule, atmospheric environment and ozone layer is had certain destruction; Arrange according to " Montreal "; Developing country will gradually reduce and freeze its output before the year two thousand thirty, at the use that has been under an embargo of this product of developed country, CO
2Foaming technique will become the desirable substitute products of HCFC, CO
2The collaborative foam PS material of many components is very responsive to pressure, temperature, cavity structure, and the head of fluorochlorohydrocarbon foam PS bears that pressure is low, the die cavity resistance big, plate surface is difficult for skinning, the head width is too big, can not normal and stable production, can not adapt to CO
2The production of the collaborative foam PS material of many components.
Summary of the invention
The purpose of this invention is to provide a kind of CO
2High pressure extrusion foaming plate forming head, the acomia normal and stable production of head that solves the fluorochlorohydrocarbon foam PS is with CO
2Be the difficult problem of the foaming product of main foaming agent, bearing pressure is high, the die cavity resistance is low.
The objective of the invention is to realize as follows: this foaming plate former; Comprise handpiece body; The handpiece body front portion is a mouthful mould, and die cavity is arranged in the handpiece body, and the side of handpiece body has charging aperture to be communicated with die cavity; Upper and lower surface at the handpiece body front end is provided with clamping plate, and the bolt of lower plate in the connection is set in the handpiece body both sides.Connecting upward through bolt, lower plate constitutes the head anchor clamps.CO
2The foam PS material needs the pressure of 20MPa-35MPa, and common fluorochlorohydrocarbon foam PS head is acomia to bear so high pressure.Bear the low problem of pressure to fluorochlorohydrocarbon foam PS head, the present invention has designed the head anchor clamps, has improved the head bearing capacity, guarantees that head can bear the pressure of 20Ma-35MPa.Fluorochlorohydrocarbon foam PS head can not be installed fastening bolt owing to receive the restriction of die cavity runner in the runner, and the pressure that head bears is low, surpasses that the 20MPa head will leak material or the machine head port mould gap becomes greatly because of the high-pressure elastomeric modification, can't operate as normal.The head clamp head discharging opening place that increases has solved the leakage material of head under high pressure and mouthful die clearance elasticity that influence produced that is stressed and has become big.This structure has two rigidity lath preferably, through high-strength bolt, is clipped in handpiece body in the middle of the lath, overcomes the expanding power that the head die cavity receives, and keeps the influence that handpiece body is not stressed and strain is guaranteed the sheet material steady production.
Handpiece body is the small-sized chamber of a monoblock type flow channel.Because CO
2Responsive especially to head die cavity resistance, common in the past fluorochlorohydrocarbon foam PS head die cavity is split type, and the jointing line of internal orifice mould and die body can influence the surface skining of sheet material, and sheet material is prone to produce air pocket, or raw material is extremely expected.The small-sized chamber of design monoblock type flow channel, mouthful mould and die body are processed as one, and do not have jointing line, have reduced head die cavity resistance, are prone to the plate surface skinning.
The mouth mould partly has the die lip of self-lubricating abrasion-proof material and the typing lip of alloy material, and die lip is embedded in the endoporus of typing lip.CO
2When foam PS material, material expanded at mould outlet, surperficial cell wall was than thin many of the surperficial cell wall of common fluorochlorohydrocarbon foam PS material; When passing through the steel die lip of common fluorochlorohydrocarbon foam PS head; Invar molding lip coefficient of friction is big, and the epidermis abscess breaks, and sheet material is skinning not.The present invention has designed special die lip pattern, and adopts special die lip material, and the die lip material is a self-lubricating abrasion-proof material, and coefficient of friction is little, advantages such as high temperature resistant, that heat-proof quality is good are arranged, and effectively promoted the skinning of sheet material.Die lip is embedded in the typing lip, has guaranteed the rigidity under the die lip high pressure conditions, reduces the frictional resistance of melt in the foaming and intumescing process, and forms the epidermal structure of continous-stable.
The present invention is used for CO
2, CO
2The collaborative auxiliary agent of many components is produced XPS sheet material, bears the pressure height, and the easy skinning of plate surface can continuously, stably be produced CO
2Foaming XPS sheet material.
Description of drawings
Fig. 1 is a structural representation of the present invention.
The specific embodiment
With reference to Fig. 1, this CO
2High pressure extrusion foaming plate forming head comprises handpiece body 5, and handpiece body 5 front portions are a mouthful mould; Die cavity 2 is arranged in the handpiece body 5; Handpiece body 5 is the small-sized chamber of a monoblock type flow channel, and the side of handpiece body 5 has charging aperture 1 to be communicated with die cavity 2, at the upper and lower surface of handpiece body 5 front ends clamping plate 6 is set; The bolt 7 of lower plate 6 in the connection is set in handpiece body 5 both sides, and handpiece body 5 rear portions are provided with head hold-down bolt 8.The mouth mould partly has the die lip 3 of self-lubricating abrasion-proof material and the typing lip 4 of alloy material, and die lip 3 is embedded in the endoporus of typing lip 4.PS material and CO
2, CO
2The collaborative auxiliary agent of many components is got into by charging aperture; Be uniformly dispersed through die cavity 2; Discharge rapid expanding through die lip 3 material high pressure; Form foaming plate by 4 typings of typing lip, the head anchor clamps and the head hold-down bolt 8 that are made up of clamping plate 6 and bolt 7 compress handpiece body 5 to guarantee that material does not overflow die cavity 2 under the high pressure of 20MPa.
Claims (3)
1. CO
2High pressure extrusion foaming plate forming head; Comprise handpiece body; The handpiece body front portion is a mouthful mould, and die cavity is arranged in the handpiece body, and the side of handpiece body has charging aperture to be communicated with die cavity; It is characterized in that: the upper and lower surface at handpiece body (5) front end is provided with clamping plate (6), is provided with in handpiece body (5) both sides to connect the bolt (7) of going up lower plate (6).
2. CO according to claim 1
2High pressure extrusion foaming plate forming head is characterized in that: handpiece body (5) is the small-sized chamber of a monoblock type flow channel.
3. CO according to claim 1
2High pressure extrusion foaming plate forming head is characterized in that: a mouthful mould partly has the die lip (3) of self-lubricating abrasion-proof material and the typing lip (4) of alloy material, and die lip (3) is embedded in the endoporus of typing lip (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103592799A CN102431143A (en) | 2011-11-14 | 2011-11-14 | Molding machine head for CO2 high-pressure extrusion formed sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103592799A CN102431143A (en) | 2011-11-14 | 2011-11-14 | Molding machine head for CO2 high-pressure extrusion formed sheet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102431143A true CN102431143A (en) | 2012-05-02 |
Family
ID=45979664
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011103592799A Pending CN102431143A (en) | 2011-11-14 | 2011-11-14 | Molding machine head for CO2 high-pressure extrusion formed sheet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102431143A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110239015A (en) * | 2019-06-29 | 2019-09-17 | 山东通佳机械有限公司 | A kind of CO2Vibration foaming XPS plate material molding machine |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3320634A (en) * | 1965-08-10 | 1967-05-23 | Fmc Corp | Die assembly |
| US4015925A (en) * | 1972-02-10 | 1977-04-05 | Certain-Teed Products Corporation | Extrusion equipment and especially die structure for making plastic siding |
| CN1268919A (en) * | 1997-05-09 | 2000-10-04 | B·C·泡沫材料有限公司 | Process for prodn. of expanded polyester, in particular PET |
| CN2806114Y (en) * | 2005-07-05 | 2006-08-16 | 孟庆平 | Improved filtering head of waste plastic extruding machine |
| CN202318869U (en) * | 2011-11-14 | 2012-07-11 | 山东通佳机械有限公司 | CO2 high-pressure extruded foamed plate material molding handpiece |
-
2011
- 2011-11-14 CN CN2011103592799A patent/CN102431143A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3320634A (en) * | 1965-08-10 | 1967-05-23 | Fmc Corp | Die assembly |
| US4015925A (en) * | 1972-02-10 | 1977-04-05 | Certain-Teed Products Corporation | Extrusion equipment and especially die structure for making plastic siding |
| CN1268919A (en) * | 1997-05-09 | 2000-10-04 | B·C·泡沫材料有限公司 | Process for prodn. of expanded polyester, in particular PET |
| CN2806114Y (en) * | 2005-07-05 | 2006-08-16 | 孟庆平 | Improved filtering head of waste plastic extruding machine |
| CN202318869U (en) * | 2011-11-14 | 2012-07-11 | 山东通佳机械有限公司 | CO2 high-pressure extruded foamed plate material molding handpiece |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110239015A (en) * | 2019-06-29 | 2019-09-17 | 山东通佳机械有限公司 | A kind of CO2Vibration foaming XPS plate material molding machine |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120502 |