CN2262985Y - Single screw plastic foaming net extruder - Google Patents
Single screw plastic foaming net extruder Download PDFInfo
- Publication number
- CN2262985Y CN2262985Y CN 95235062 CN95235062U CN2262985Y CN 2262985 Y CN2262985 Y CN 2262985Y CN 95235062 CN95235062 CN 95235062 CN 95235062 U CN95235062 U CN 95235062U CN 2262985 Y CN2262985 Y CN 2262985Y
- Authority
- CN
- China
- Prior art keywords
- bevel gear
- screw rod
- head
- segment
- extruder
- 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)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
Abstract
The utility model belongs to a plastic extruder, particularly a single screw plastic foaming net extruder. A threaded rod (11) arranged in a material barrel (4) is of a single threaded rod type. The threaded rod is divided into four segments comprising a material feeding molding segment, a cryogen injection segment, a conveying homogenizing segment and a mixing head segment. A bevel gear drive is used as a hand piece (5). An internal bevel gear (6) and an outer bevel gear (7) are driven by a driving bevel gear (8), and the driving bevel gear (8) is reversely rotated simultaneously. The utility model has the advantages of reasonable structure, easy fabrication, small size, light weight, balanced and reliable driving, simple structure, low cost and stable performance, and the form that two extruders are connected in series of the foreign country equipment is broken.
Description
The utility model relates to plastic extruder, says it is single screw rod plastic foam screen extruder in more detail.
At present, some fragile article such as glass, ceramic and be afraid of melon that extruding needs to isolate, really, the packings of vegetables etc., mostly adopt have light and soft, decompression, the plastic foamed net of premium properties such as shockproof, flexible, shock resistance, and the process equipment that the domestic production plastics are fired and netted, its structure is tandem, i.e. two extruders series connection flows to another after the plasticizing, become net through head again, this processing mode production efficiency is low, power consumption is big, cost is high, floor space is big.
The purpose of this utility model is exactly to be to provide a kind of single screw rod plastic foam screen extruder that can eliminate above-mentioned shortcoming, and it can reduce the power of motor of main frame, reduces occupation area of equipment, reduces production costs.
Screw rod (11) in this device barrel (4) is a single-screw, screw rod is divided into four sections, screw rod (11-1) section is gradual change common screw pattern, screw rod (11-2) Duan Weida helical pitch multiple thread, screw rod (11-3) section is the common screw pattern, and screw rod (11-4) section is a mixing refining head, and the head of extruder (5) comprises interior bevel gear (6), outer bevel gear (7), driving bevel gear (8), interior bevel gear connects with collar extension mould (9), and outer bevel gear connects with internal orifice mould (10).
Head of the present utility model adopts the bevel gear frame mode, and simple in structure, volume is little, easy to maintenance, and the single-screw extruder has reduced power of motor, and unit can be finished the function of two above units, has reduced production cost, has reduced occupation area of equipment.
Below in conjunction with accompanying drawing the embodiment that this installs tool advantage is described further:
Description of drawings: Fig. 1 is the attached view of device
Fig. 2 is the screw rod view
Fig. 3 is the head cutaway view
Fig. 1 is shown the device floor plan, comprises unit head 1, and hopper 2, measuring pump 3, barrel 4, head 5, head comprise interior bevel gear 6, outer bevel gear 7, driving bevel gear 8.
Be screw rod (11) (showing) in the barrel of this device (4) as Fig. 2, screw rod is divided into four sections, screw rod (11-1) section is reinforced, plasticizing, homogenizing zone, adopt gradual change common screw pattern screw rod, it is big that diameter becomes from left to right gradually, and it is the refrigerant injection phase that screw rod (11-2) section is injected refrigerant by measuring pump, adopt big helical pitch multiple thread, plastics are fully mixed with refrigerant and produce certain pressure, screw rod (11-3) section adopts common screw to mould formula for carrying homogenizing zone; Screw rod (11-4) section is a homogenizing zone, adopts the pattern of mixing refining head to reach necessary effect.Its total principle is that plastics mix with refrigerant on the basis of fully plasticizing, makes the mixture of plastics and refrigerant produce enough pressure after the mixing, through mixing by the regulation head to the abundant plasticizing of mixture, produces foam screen again.
The end of this device barrel (4) connects with head (5), the mixture of plastics and refrigerant is transported in the head (showing as Fig. 3) by screw rod (11), head comprises interior bevel gear (6), outer bevel gear (7), internal orifice mould (9), collar extension mould (10), interior bevel gear connects with the collar extension mould, outer bevel gear connects with the internal orifice mould, and by bevel gear and outer bevel gear in infinite variable speed driving bevel gear (8) drive, the reverse rotation of collar extension mould in finishing simultaneously, thereby the rhombus foam screen that obtains varying in size.The head of this device is changed traditional double-stranded bar kind of drive, and easy to manufacture, volume is little, and is in light weight, and stable drive is reliable.
This device also adopts new nontoxic, free of contamination refrigerant DW to replace traditional fluorine Lyons, and price is low, and foaming effect is good, and has complied with the regulation that bans use of fluorine Lyons in the world.
Claims (1)
- A kind of plastic foamed net extruder, comprise unit head (1), hopper (2), measuring pump (3), barrel (4), head (5), it is characterized in that the screw rod (11) in the barrel (4) is a single-screw, screw rod is divided into 4 sections, screw rod (11-1) section is gradual change regular screw threads pattern, screw rod (11-2) Duan Weida helical pitch multiple thread, screw rod (11-3) section is the common screw pattern, screw rod (11-4) section is a mixing refining head, head (5) comprises interior bevel gear (6), outer bevel gear (7), driving bevel gear (8), interior bevel gear connects with collar extension mould (10), and outer bevel gear connects with internal orifice mould (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95235062 CN2262985Y (en) | 1995-11-20 | 1995-11-20 | Single screw plastic foaming net extruder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95235062 CN2262985Y (en) | 1995-11-20 | 1995-11-20 | Single screw plastic foaming net extruder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2262985Y true CN2262985Y (en) | 1997-09-24 |
Family
ID=33878834
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95235062 Expired - Fee Related CN2262985Y (en) | 1995-11-20 | 1995-11-20 | Single screw plastic foaming net extruder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2262985Y (en) |
-
1995
- 1995-11-20 CN CN 95235062 patent/CN2262985Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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 |