CN1038918C - Method and mechanism for plastics forming - Google Patents
Method and mechanism for plastics forming Download PDFInfo
- Publication number
- CN1038918C CN1038918C CN92105423A CN92105423A CN1038918C CN 1038918 C CN1038918 C CN 1038918C CN 92105423 A CN92105423 A CN 92105423A CN 92105423 A CN92105423 A CN 92105423A CN 1038918 C CN1038918 C CN 1038918C
- Authority
- CN
- China
- Prior art keywords
- die head
- metal core
- plastics
- forging
- section bar
- 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.)
- Expired - Fee Related
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- Extrusion Moulding Of Plastics Or The Like (AREA)
- Forging (AREA)
Abstract
The present invention relates to a method for the molding machining of plastics and the mechanism thereof. The present invention is characterized in that after being continuously forged and fused, an upper molding mould and a lower molding mould are primarily shaped to coat a plastic layer positioned at the exterior of metal core materials, and the plastic layer is gradually cooled and molded by water; therefore, the influence of molding proximate matter covered by plastics, which is caused by molding shrinkage and the difference of internal stress between two materials, can be eliminated, and thus, the proximate matter covered by the plastics, which has metal core materials, can be continuously produced by low cost.
Description
The present invention relates to plastic shaping method for processing and machinery, particularly a kind of method and device of producing the plastic material of band metal core continuously.
Existing plastic shaping processing method has compression molding, blow molding, calendering formation, thermoforming, flowing forming, and laminat molding etc. are applicable to the various plastic products of processing.But because plastics itself are the non-conductors of heat, and metal is the good conductor of heat, therefore the plastic material of processing belt metal core is just very difficult, it is thicker particularly ought to mould layer again, and processing is more difficult during uneven thickness, because the cooling velocity difference of thin part of wall thickness and wall and core shows as the local temperature difference, the difference that produces moulding contraction and internal stress can cause separating of distortion and core and plastic layer, influences end product quality.At present, can only adopt the method for cold mould injection moulding to lack the part Batch Process, complex process, apparatus expensive can not be produced continuously.
The method and apparatus that the purpose of this invention is to provide a kind of plastic material of the band of low-cost production continuously metal core.
For reaching this purpose, the method that the present invention produces the plastic material of band metal core continuously is that plastics are heated, make it fusion, squeeze note is gone into die head, and at the uniform velocity pass die head as the shape of core, the plastics of molten clad outside shape before die head, through the die head preliminarily forming, through the lasting forging and pressing of finishing die up and down, cooling forming, produce multiple plastic section bar continuously again.Because adopting up and down, shaping mould continues the outer cold gradually solid plastics of forging and pressing metal core, just can eliminate because of moulding shrink and the difference of two kinds of material internal stress to answering the influence of plastic section bar moulding, guarantee plastics cladding and the tight adhesion of metal core, the requirement that meets the specification of section bar cross sectional shape and size.
And the device of the plastic material of producing band metal core continuously of the present invention is by the ring-like die head that joins with extruding machine, be right after ring-like die head, by a fixed compacted under mould and an end is shaft fulcrum, shaping mould and section bar carry-over pinch rolls are formed on the other end and the forging and pressing formula that the toggle that moves up and down links to each other, in the fixed compacted under mould cooling water channel is arranged, shaping mould has equipment water jetting cooler outward on the forging and pressing formula, annular die head has inlet and the input port of metal core and the delivery outlet of multiple plastic section bar of molten plastic, this plastic shaping processing equipment is simple in structure, easy and simple to handle, can produce continuously with the shape is core, outer plastic layer again, the multiple plasticity section bar of various cross sectional shapes, productivity ratio are much higher than existing cold mould injection moulding, and cost is cheap.
Embodiment describes the present invention below in conjunction with accompanying drawing.
Fig. 1 is that parallel bars pole stock schematic diagram is moulded in the processing of embodiment of the invention forging forming method again.
As shown in Figure 1, the igelite of the molten of from extruding machine, extruding through the inlet 2 of cross die head 1, before ring-like die head 14 cladding on metal core 15, the core 15 of molten plastics is at the uniform velocity mobile under the traction of carry-over pinch rolls 11 in the cladding, speed is 0.33 meter/minute, through ring-like die head 14 first one-step formings, move to again on the fixed compacted under mould 13, continued to forge by shaping mould 6 on the forging and pressing formula.In the fixed compacted under mould 13 cooling water channel 12 is arranged, outside the shaping mould 6 equipment water jetting cooler 5 is arranged on the forging and pressing formula, can make upper and lower shaping mould 6,13 and 8 coolings of plastics cladding, the section bar 10 behind the cooling forming is consistent with die cavity 7 shapes.Shaping mould 6 one ends are shaft fulcrum 9 on the forging and pressing formula, and the other end links to each other with the toggle of being made up of connecting rod 3 and crank disk 4.Plastic layer 8 is tight with core 15 adhesions, multiple plastic section bar 10 outer surface smoother, and rigidity meets the requirements, and the quantity-produced section bar can be truncated into the parallel bars thick stick material of random length.
Claims (2)
1, a kind of method of producing the plastic material of band metal core continuously, be about to the plastics heating, make it fusion, squeeze note is gone into die head, it is characterized in that at the uniform velocity passing die head as the shape of core, the plastics of molten clad outside shape before die head, through the die head preliminarily forming, through the lasting forging and pressing of finishing die up and down, cooling forming, produce multiple plastic section bar continuously again.
2, a kind of device of producing the plastic material of band metal core continuously, by the ring-like die head that joins with extruding machine, be right after ring-like die head, be shaft fulcrum by a fixed compacted under mould and an end, shaping mould and section bar carry-over pinch rolls are formed on the other end and the forging and pressing formula that the toggle that moves up and down links to each other, in the fixed compacted under mould cooling water channel is arranged, shaping mould has equipment water jetting cooler outward on the forging and pressing formula, and said annular die head has inlet and the input port of metal core and the delivery outlet of multiple plastic section bar of molten plastic.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN92105423A CN1038918C (en) | 1992-07-11 | 1992-07-11 | Method and mechanism for plastics forming |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN92105423A CN1038918C (en) | 1992-07-11 | 1992-07-11 | Method and mechanism for plastics forming |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1082484A CN1082484A (en) | 1994-02-23 |
| CN1038918C true CN1038918C (en) | 1998-07-01 |
Family
ID=4941376
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN92105423A Expired - Fee Related CN1038918C (en) | 1992-07-11 | 1992-07-11 | Method and mechanism for plastics forming |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1038918C (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1292593A (en) * | 1968-09-28 | 1972-10-11 | Gkn Group Services Ltd | Improvements in or relating to manufacture of thermo-plastic bodies |
| US3825648A (en) * | 1972-07-06 | 1974-07-23 | Itt | Forging of rigid crystalline plastics |
-
1992
- 1992-07-11 CN CN92105423A patent/CN1038918C/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1292593A (en) * | 1968-09-28 | 1972-10-11 | Gkn Group Services Ltd | Improvements in or relating to manufacture of thermo-plastic bodies |
| US3825648A (en) * | 1972-07-06 | 1974-07-23 | Itt | Forging of rigid crystalline plastics |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1082484A (en) | 1994-02-23 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| 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 |