CN2454115Y - Screw of plastic-injection forming machine - Google Patents
Screw of plastic-injection forming machine Download PDFInfo
- Publication number
- CN2454115Y CN2454115Y CN 00265482 CN00265482U CN2454115Y CN 2454115 Y CN2454115 Y CN 2454115Y CN 00265482 CN00265482 CN 00265482 CN 00265482 U CN00265482 U CN 00265482U CN 2454115 Y CN2454115 Y CN 2454115Y
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- CN
- China
- Prior art keywords
- screw
- plastic
- screw rod
- injection
- injection forming
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- 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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Abstract
The utility model relates to a screw of a plastic-injection forming machine, being a key part among the injection devices of the plastic-injection forming machine. The screw of the plastic-injection forming machine is suitable for various plastic-injection forming machines with different models and structures. One end of the screw is provided with a keyway with no screw thread, and the other end is provided with a screw head. The outer surface is composed of long ladder bars with spiral screw threads. Two or more than two barriers with uniformly distributed teeth at the periphery are arranged at the junction of the homogenizing section and the compressing section of the screw. The screw is driven by a pre-plastic gearing device to rotate, and the barriers uniformity mix melted materials again, so that band-shaped wrapping materials can not be formed at the screw head, and plastic is not easy to decompose. Therefore, the utility model has the advantages of improving the colorant uniformity of injection products, ensuring color difference, increasing plasticating ability and stability, small axial temperature difference, low back pressure and energy saving.
Description
The utility model relates to the vital part in a kind of plastic-injection moulding machine injection device, and the screw rod of the plastic-injection moulding machine of suit installation in the injection machine of various different models, structure, use.
Show the used screw rod of injection machine, mostly be the universal architecture that axial screw shape screw thread is arranged on the outer surface, thereby all there are some defectives at aspects such as melting effect, the product colorant uniformity, aberration, plasticizing stability and abilities, and can form banded construction materials contract at screw head, easily decompose.
Be head it off, also introduced some measures on the relevant book of teaching,, so not only make trouble, and the effect that is risen is not remarkable as setting up different multiple skewed slot at the periphery of screw rod end or installing pin additional.
The purpose of this utility model is to provide a kind of screw rod of plastic-injection moulding machine, and its melting effect is good, and the colorant uniformity, the chromatic aberration performance of product are all improved, and has strengthened plasticizing capacity and stability, and makes the plasticizing back pressure low, reduces energy resource consumption.
The utility model is achieved in that the screw rod of plastic-injection moulding machine has keyway not have screw thread by an end, one end is a screw head, outer surface has the long stepped stem of helical thread to constitute, and described screw rod also has two or more peripheries that the barrier of even teeth is arranged in its homogenizing zone, the short junction of compression.
Fig. 1. the utility model user mode reference diagram.
Fig. 2. the screw-rod structure schematic diagram.
Fig. 3. the alternative plan structural representation.
Fig. 4. the A-A view of Fig. 2.
Below in conjunction with accompanying drawing embodiment of the present utility model is further described.
On a termination of the barrel that is connected with electric heating coil (6) (7), be screwed the band nozzle (12) nozzle after body (11).Barrel (7), hopper (4) are screwed on the centre position of injection seat (5), two injection cylinders be separately fixed at injection seat (5) both sides, be on the position, the left and right sides at rear portion of barrel (7).
One end of screw rod (9) of band screw head (10) is put into barrel (7), and end links into an integrated entity with the power transmission shaft (3) that is connected with oil motor (1) in key and the preformed transmission device in addition, and these are all the same with prior art, do not describe in detail.
Barrier (8) and screw rod (9) be same integral body or by several parts splicings, combination, the cross section is a circle, and periphery has uniform stepped tooth, each between cog rounding off, and the maximum outside diameter of tooth is identical or smaller with screw rod (9) external diameter.And profile of tooth, the number of teeth can determine its shape, size, quantity as required.
In the pitch scope of a pitch of the junction of the homogenizing zone of screw rod (9) and compression section or two vicinities, process two or more barriers (8) respectively, processing two barriers (8) in the pitch, as shown in Figure 2.Three of processing or four barriers (8) are as shown in Figure 3 in two pitch scopes.
During use, oil motor in the preformed transmission device (1) drives screw rod (9) by power transmission shaft (3) and rotates, raw material is poured into from hopper (4), and along with the rotation of screw rod (9), plastic pellet enters the screw channel of screw rod (9), move forward, and screw rod (9) is subjected to squeeze and constantly moves backward, after entering the compression section, plastic pellet is fused into the melting attitude gradually, run into screw rod (9) again and go up the effect of barrier (8), it is fully stirred, mixing, and the front end of delivering to barrel (7) is again concentrated, at this moment the moving platen with half mould moves to nozzle (12) direction, close up locking with the front template with second half mould, the piston rod of injection cylinder is connected with preformed seat (2), and injection cylinder drives preformed seat (2) and moves forward, with preformed seat (2), the screw rod (9) that power transmission shaft (3) fuses is also moved forward by drive, before the retaining ring of screw head (10) back is pushed the melting plastics to, inject mould, injection mo(u)lding through nozzle (12).
The utility model compared with prior art, because being equipped with two and plural barrier at screw rod, By the barrier shunting, material fully can be stirred, make the material melting effect good, thereby improved the even of colorant Degree guarantees that product aberration, axial temperature difference are little, has strengthened plasticizing capacity, and plasticizing is stable, and the plasticizing back pressure is low, Can reduce the oil motor load again, head can not form banded construction materials contract, reduces and decomposes, and is difficult for burning.
Claims (4)
1. the screw rod of a plastic-injection moulding machine, there is keyway not have screw thread by an end, one end is screw head (10), outer surface has the long stepped stem of helical thread to constitute, and it is characterized in that described screw rod (9) also has two or more peripheries that the barrier (8) of even teeth is arranged in its homogenizing zone, the short junction of compression.
2. screw rod according to claim 1, it is characterized in that barrier (8) and screw rod (9) splice and combine for same integral body or by several parts, the cross section is circular, and periphery has uniform stepped tooth, each between cog rounding off, the maximum outside diameter of tooth is identical or smaller with screw rod (9) external diameter.
3. screw rod according to claim 1 is characterized in that in a pitch of screw rod (9) homogenizing zone, junction, compression section two barriers (8) being arranged.
4. screw rod according to claim 1 is characterized in that in two contiguous pitch scopes of screw rod (9) homogenizing zone, junction, compression section three or four barriers (8) being arranged respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00265482 CN2454115Y (en) | 2000-12-26 | 2000-12-26 | Screw of plastic-injection forming machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00265482 CN2454115Y (en) | 2000-12-26 | 2000-12-26 | Screw of plastic-injection forming machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2454115Y true CN2454115Y (en) | 2001-10-17 |
Family
ID=33619851
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00265482 Expired - Fee Related CN2454115Y (en) | 2000-12-26 | 2000-12-26 | Screw of plastic-injection forming machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2454115Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104647709A (en) * | 2015-02-04 | 2015-05-27 | 常熟康尼格科技有限公司 | Melt-and-play glue melting device |
-
2000
- 2000-12-26 CN CN 00265482 patent/CN2454115Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104647709A (en) * | 2015-02-04 | 2015-05-27 | 常熟康尼格科技有限公司 | Melt-and-play glue melting device |
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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 |