CN202685237U - Screw for ramming polyvinyl chloride polymer (PVC) plastic - Google Patents
Screw for ramming polyvinyl chloride polymer (PVC) plastic Download PDFInfo
- Publication number
- CN202685237U CN202685237U CN 201220389399 CN201220389399U CN202685237U CN 202685237 U CN202685237 U CN 202685237U CN 201220389399 CN201220389399 CN 201220389399 CN 201220389399 U CN201220389399 U CN 201220389399U CN 202685237 U CN202685237 U CN 202685237U
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- CN
- China
- Prior art keywords
- screw
- thread
- main body
- screw rod
- mixing groove
- 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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- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
The utility model provides a screw for ramming polyvinyl chloride polymer (PVC) plastic, and belongs to the field of screw machinery. The screw for ramming the PVC plastic comprises a screw main body, a first thread, a second thread and a screen mixing groove. The screw main body is bestrewn with the first thread. The head portion of the screw is in a cone shape. A position on the screw main body, close to the head portion, is provided with the screen mixing groove. The second thread is arranged below the screen mixing groove. The second thread and the first thread are in parallel with each other. The distance between the second thread and the first thread is 12-19 millimeters. The inclined angle a of the inclined direction of the screen mixing groove and the central line of the screen mixing groove is 15-25 degrees. The head portion of the screw main body is in a cone shape, and the cone angle b is 12-18 degrees. Due to the fact that the screen mixing groove and a dual-thread structure are added, the plasticizing effect of the PVC plastic is greatly improved, and universality is achieved.
Description
Technical field
The utility model relates to a kind of screw rod, and specifically a kind of screw rod for breaking the PVC plastics belongs to the screw rod mechanism field.
Background technology
Injection machine has improved plastic products miscellaneous for the people's life production, greatly improved the people's living standard, the critical component of injection machine is screw rod, screw rod in usefulness all is single-screw shape structure basically at present, in particular for beating the screw rod of PVC plastics, owing to be that single-screw shape structure causes PVC plastics plasticizing effect poor, be a urgent problem therefore.
Summary of the invention
The purpose of this utility model provides a kind of screw rod for breaking the PVC plastics.
Problem to be solved in the utility model is that single-screw shape structure causes the poor deficiency of PVC plastics plasticizing effect.
For realizing the purpose of this utility model, the technical solution adopted in the utility model is:
A kind of screw rod for breaking the PVC plastics, comprise screw rod main body, the first screw thread, the second screw thread and the mixing groove of barrier, be covered with the first screw thread on the screw rod main body, the head of screw rod main body is tapered, the close head position of screw rod main body is provided with the mixing groove of barrier, the mixing groove of barrier below is provided with the second screw thread, and the second screw thread and the first screw thread are parallel to each other.
The second screw thread and the first screw thread mutual spacing are 12-19mm; The angle a of the incline direction of the mixing groove of barrier and center line is the 15-25 degree; The head of screw rod main body is tapered, and cone angle b is the 12-18 degree.
The utility model has the advantages that: this screw rod has greatly improved PVC plastics plasticizing effect, and has possessed versatility owing to increased the mixing groove of barrier and two helicitic texture, should have the wide market space.
Description of drawings
Fig. 1 is the front view of a kind of screw rod for breaking the PVC plastics of the utility model;
Among the figure: 1, screw rod main body 2, the first screw thread 3, the second screw thread 4, the mixing groove of barrier.
The specific embodiment
Below in conjunction with drawings and Examples the utility model is further described.
As shown in Figure 1, a kind of screw rod for breaking the PVC plastics, comprise screw rod main body 1, the first screw thread 2, the second screw thread 3 and the mixing groove 4 of barrier, be covered with the first screw thread 2 on the screw rod main body 1, the head of screw rod main body 1 is tapered, the close head position of screw rod main body 1 is provided with the mixing groove 4 of barrier, and the mixing groove of barrier 4 belows are provided with the second screw thread 3, the second screw threads 3 and the first screw thread 2 is parallel to each other.
The second screw thread 3 and the first screw thread 2 mutual spacings are 19mm, and are hot in advance with effective increase; The mixing groove 4 of barrier has 9 roads altogether, and the incline direction of the mixing groove 4 of barrier and the angle a of center line are 25 degree, but this procedure Effective Raise plasticizing effect; The head of screw rod main body 1 is tapered, and cone angle b is 18 degree, to improve the plasticizing quality of discharging product.
After the utility model installation, with in this screw rod dress and the injection machine, when the driven by motor bolt rotary just can be produced the PVC plastics of high-quality, and reach desirable plasticizing effect.
Claims (4)
1. screw rod that is used for beating the PVC plastics, comprise screw rod main body (1), the first screw thread (2), the second screw thread (3) and the mixing groove of barrier (4), it is characterized in that: be covered with the first screw thread (2) on the screw rod main body (1), the head of screw rod main body (1) is tapered, the close head position of screw rod main body (1) is provided with the mixing groove of barrier (4), the mixing groove of barrier (4) below is provided with the second screw thread (3), and the second screw thread (3) and the first screw thread (2) are parallel to each other.
2. a kind of screw rod for breaking the PVC plastics according to claim 1, it is characterized in that: described the second screw thread (3) and the first screw thread (2) mutual spacing are 12-19mm.
3. a kind of screw rod for breaking the PVC plastics according to claim 1, it is characterized in that: the incline direction of the mixing groove of described barrier (4) and the angle a of center line are the 15-25 degree.
4. a kind of screw rod for breaking the PVC plastics according to claim 1, it is characterized in that: the head of described screw rod main body (1) is tapered, and cone angle b is the 12-18 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220389399 CN202685237U (en) | 2012-08-08 | 2012-08-08 | Screw for ramming polyvinyl chloride polymer (PVC) plastic |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220389399 CN202685237U (en) | 2012-08-08 | 2012-08-08 | Screw for ramming polyvinyl chloride polymer (PVC) plastic |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202685237U true CN202685237U (en) | 2013-01-23 |
Family
ID=47540904
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220389399 Expired - Fee Related CN202685237U (en) | 2012-08-08 | 2012-08-08 | Screw for ramming polyvinyl chloride polymer (PVC) plastic |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202685237U (en) |
-
2012
- 2012-08-08 CN CN 201220389399 patent/CN202685237U/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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130123 Termination date: 20150808 |
|
| EXPY | Termination of patent right or utility model |