CN2047214U - Plastic cushion thermoset extrusion moulding machine - Google Patents
Plastic cushion thermoset extrusion moulding machine Download PDFInfo
- Publication number
- CN2047214U CN2047214U CN 89210082 CN89210082U CN2047214U CN 2047214 U CN2047214 U CN 2047214U CN 89210082 CN89210082 CN 89210082 CN 89210082 U CN89210082 U CN 89210082U CN 2047214 U CN2047214 U CN 2047214U
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- mould
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- utility
- plastics
- extruser
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- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The utility model discloses a plastic forming mechanism by which a low-voltage screw extrusion press is adopted to be served as injection device, and a mould accompanied with a heating and cooling system is adopted. Two clamp stroke control switches are adopted simultaneously to control the secondary mold matching of the mould. The utility model has the advantages of low power consumption, simple structure and low cost. A manufactured component is not easy to deform, and the utility model is especially adapted to produce a large-sized or a long plastic manufactured component such as a wheel guard, a plastic door window, construction materials, a long-shaped feeder forage tank, etc.
Description
The utility model relates to a kind of plastic molding equipment, particularly a kind of equipment that adopts the hot extrude pressure sintering to make plastic shaping.
Present plastic molding equipment has varied, roughly can be divided into squeeze note machine, injector and hot extrude cold press etc.Wherein squeeze note machine and hot extrude cold press can not be produced large-scale plastics article, though injector can be produced large-scale plastics article, because injection pressure is higher, so power attenuation is bigger, the product internal stress is higher, is easy to distortion, simultaneously the device structure complexity, involve great expense.
The purpose of this utility model is to provide a kind of large-scale plastics article forming machine of new structure, and it can overcome the deficiencies in the prior art.
The purpose of this utility model is to adopt following technical proposals to realize: it is made up of plastics implanter, mould, matched moulds device.The plastics implanter adopts the pouring-in extruser of low pressure, and the discharge end and the mould of extruser link.The mould assembling action of matched moulds device adopts two travel switch controls, with the production technology of realization secondary matched moulds, thereby improves the pressure of molten plastic in mould, improves the matter density of product.
For guaranteeing that product has certain matter density, can on the runner of the feed end of the discharge end of extruser or mould, a unidirectional non-return valve be set, make not increasing of pressure and returning during reason secondary matched moulds of the material extruded.
Extruser what of squeeze note plastics in mould are controlled according to cavity pressure, promptly adorn a pressure sensor on mould, the work of the signal controlling extruser by this pressure sensor output.
For making mould adapt to the production of large-scale plastic part, be provided with pre-heating system and cooling system on mould, pre-heating system can adopt the resistance wire heating that is coiled on the mould, also can process passage on mould, pass to hot water or steam heats, cooling system can cool off with running water.For improving cooling velocity, also can adopt water pump to increase its flow velocity.
For flowability plastics preferably, also can adopt the production technology of a matched moulds, the action that is matched moulds is only controlled by a travel switch, the material better for flowability, that heat content is higher, mould does not need preheating, therefore can not be provided with heating system on the mould, and cooling system only is housed.
It is injection device that the utility model adopts the low pressure extruser, because material is a molten condition, so not only reduced injecting power, has reduced the required mold clamping force of mould simultaneously simultaneously, and power consumption is more much smaller than injector.Because cavity pressure is lower, and is so the product internal stress is less, not yielding.Because extruder is to clamp-on material continuously in the process mould of preheating, so be fit to produce large-scale plastics article, particularly than long product, this point also is that injector is too far behind to catch up in addition.The utility model is simple in structure than injector, and cost also reduces.
Below in conjunction with embodiment and accompanying drawing thereof the utility model is done detailed description:
Fig. 1 is the structural representation of a kind of specific embodiment of the utility model.
1 is extruser among the figure, cover half 8 by bolt and mould links, the discharge end of extruser 1 is equipped with unidirectional stop valve, the material of extruding can not be returned when the secondary matched moulds, and the secondary matched moulds of mould is to control by two the mould- closing stroke switches 2,3 that are installed on the matched moulds device slideway 11.The other end at slideway also is equipped with an opening stroke gauge tap.Collision bar 4 be installed in dynamic model 10 joining slide plates 6 on, be fixed with retainer ring and screw, simultaneously its position can be adjusted.7 is the oil cylinder of matched moulds device among the figure, the slide plate 6 and the dynamic model 10 that drive the matched moulds device by it move along slideway 11,9 is cooling water pipe among the figure, on the dynamic model 10 of mould and the cover half 8 resistance heater is housed all, preheating in order to mould, feeding mouth at cover half 8 also is equipped with pressure sensor 12, and in order to the work of control extruder 1,5 are material returned bar among the figure.
The course of work of the present utility model is such: at first start matched moulds device oil cylinder 7, mould dynamic model 10 is closed up to cover half 8 along slideway 11, and leave certain clearance, its gap length is limited by factors such as product size, material variety, by 3 controls of mould-closing stroke switch, mould is carried out preheating, start extruser 1 then, material is squeezed in the pre-matched moulds, when the amount of clamp-oning reaches predetermined value, will extruder 1 be quit work, at this moment start oil cylinder 7 once more, carry out the secondary matched moulds, to reach the purpose of pressurize.Behind the secondary matched moulds, start cooling system, make the product cooling and shaping, behind the product cooling and shaping, start oil cylinder 7 and do the die sinking action, product is taken out, a production cycle promptly finishes.
Claims (3)
1, a kind of plastics hot extrude heat pressing forming machines, it is by the plastics implanter, mould and matched moulds device are formed, it is characterized in that: the plastics implanter adopts extruser, its discharge end and mould cover half link, and the mould assembling action of mould adopts two travel switch controls, and pre-heating system and cooling system are housed on the mould, the discharge end of extruser or the feeding end of mould are equipped with unidirectional stop valve, on the discharge end of extruser or the mould pressure sensor are housed.
2,, it is characterized in that the mould assembling action of mould only adopts a travel switch control according to the said plastics hot extrude of claim 1 heat pressing forming machines.
3,, it is characterized in that only being equipped with on the mould cooling system according to the said plastics hot extrude of claim 1 heat pressing forming machines.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89210082 CN2047214U (en) | 1989-01-28 | 1989-01-28 | Plastic cushion thermoset extrusion moulding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89210082 CN2047214U (en) | 1989-01-28 | 1989-01-28 | Plastic cushion thermoset extrusion moulding machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2047214U true CN2047214U (en) | 1989-11-08 |
Family
ID=4866479
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 89210082 Withdrawn CN2047214U (en) | 1989-01-28 | 1989-01-28 | Plastic cushion thermoset extrusion moulding machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2047214U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1305658C (en) * | 2001-05-30 | 2007-03-21 | 罗姆两合公司 | Method and device for regulating pressure in a single-screw degassing extruder or in a cascade extruder |
| CN100410052C (en) * | 2004-11-08 | 2008-08-13 | 北京化工大学 | Large polymer product extruding formation method and apparatus |
| CN101815375A (en) * | 2010-02-10 | 2010-08-25 | 冯小行 | Electromagnetic oven wire coil, processing method thereof and hot-press forming device |
-
1989
- 1989-01-28 CN CN 89210082 patent/CN2047214U/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1305658C (en) * | 2001-05-30 | 2007-03-21 | 罗姆两合公司 | Method and device for regulating pressure in a single-screw degassing extruder or in a cascade extruder |
| CN100410052C (en) * | 2004-11-08 | 2008-08-13 | 北京化工大学 | Large polymer product extruding formation method and apparatus |
| CN101815375A (en) * | 2010-02-10 | 2010-08-25 | 冯小行 | Electromagnetic oven wire coil, processing method thereof and hot-press forming device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |