CN201913787U - Double-screw extruder with lateral feeding device - Google Patents
Double-screw extruder with lateral feeding device Download PDFInfo
- Publication number
- CN201913787U CN201913787U CN2011200204814U CN201120020481U CN201913787U CN 201913787 U CN201913787 U CN 201913787U CN 2011200204814 U CN2011200204814 U CN 2011200204814U CN 201120020481 U CN201120020481 U CN 201120020481U CN 201913787 U CN201913787 U CN 201913787U
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- material extrusion
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- feeding device
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Abstract
The utility model discloses a double-screw extruder with a lateral feeding device, and belongs to the field of plastic production machinery. The double-screw extruder comprises a main feeding device and a main screw cylinder, wherein the main screw cylinder comprises two homodromous screw shaft cores, screw thread elements and a cylinder body, the screw shaft cores are arranged in the cylinder body, different screw thread elements are distributed around different sections of the screw shaft cores, the main screw cylinder is functionally divided into a melting section, a homogenization section, a volatile matter removal section and a material discharge pressure-boost section, the lateral feeding device is arranged on the main screw cylinder side surface between the melting section and the homogenization section, the lateral feeding device comprises a hopper, a first material extrusion device is arranged below the hopper, a second material extrusion device is arranged below the outlet of the first material extrusion device, the outlet of the second material extrusion device is communicated with the main screw cylinder, and heating devices are further arranged in the first and the second material extrusion devices. After a glass fiber is added by the lateral feeding device into molten polymer inside the screw cylinder, the melt provides the fiber with lubricating protection by covering the fiber, thereby preventing the fiber from being fractured and the screws and the machine barrel from being worn.
Description
Technical field
The utility model relates to plastic cement manufacturing machine field, especially a kind of double screw extruder with the side drawing-in device.
Background technology
In plastic cement preparation technology, adopt double screw extruder usually, double screw extruder mainly is made up of extrusion system, power drive system and temperature control system three parts; Material is pushed to heading gradually along with the rotation of screw rod after entering the barrel feeding section by hopper; At feeding section, barrel is full of by loose solids or powder, and material begins to be compacted.After advancing people's melt zone, because heating element heater is to the barrel heating heat, and screw rod, barrel, screwing element heat that shearing, friction, the extruding of material produced makes that material plastifies gradually, fusion, then enters extruding zone and evenly extrudes; But add the glass fibre reinforcing material in the mixed with polymers material, if but glass fibre and polymer material are all added by the barrel feeding section when producing, can cause that glass fibre is excessively fractureed in the material conveying process, screw rod also causes heavy wear because of directly contacting with glass with the barrel inner surface.
The utility model content
At the deficiency of existing double screw extruder, the utility model provides a kind of and can keep glass fibre excessively not fractureed when adding the glass fibre raw material, can not cause the double screw extruder of wearing and tearing simultaneously again to barrel.
For achieving the above object, the technical solution adopted in the utility model is as follows:
The double screw extruder of band side drawing-in device, comprise main drawing-in device and main barrel, main barrel comprises two homodromal screw shaft cores and screwing element and cylindrical shell, the screw shaft core places in the cylindrical shell, be distributed with different screwing elements around the screw shaft core of different sections, make this main barrel have difference in functionality, be divided into melt zone according to difference in functionality, homogenizing zone, devolatilization section and discharge supercharging section, main barrel side between described melt zone and the homogenizing zone is provided with the side drawing-in device, this side drawing-in device comprises hopper, below hopper, be provided with the first material extrusion device, below the outlet of the first material extrusion device, be provided with the second material extrusion device, the outlet of the second material extrusion device communicates with main barrel, also is provided with heater in the first and second material extrusion devices.
Further, also be provided with exhaust section between described melt zone and the homogenizing zone.
The beneficial effects of the utility model are: the side between barrel melt zone and homogenizing zone is provided with the side drawing-in device, with glass fibre section adding from then on barrel, because of glass is to be added in the polymer of fusion, melt is with after fiber mixes, fiber is wrapped, play the lubrication protection effect, reduced excessively fractureing and the wearing and tearing of screw rod and machine barrel of fiber, and helped dispersion and the distribution of glass at homogenizing zone; In the side drawing-in device, establish heater, can avoid polymer chill on glass, cause that extra glass fractures.
Description of drawings
Fig. 1 is the structural representation of the double screw extruder of embodiment band side drawing-in device.
The specific embodiment
Below in conjunction with concrete embodiment the utility model is described further:
With reference to figure 1, the double screw extruder of band side drawing-in device, comprise main drawing-in device 1 and main barrel 2, main barrel 2 comprises two homodromal screw shaft cores and screwing element and cylindrical shell, the screw shaft core places in the cylindrical shell, be distributed with different screwing elements around the screw shaft core of different sections, make this main barrel have difference in functionality, be divided into melt zone, exhaust section, homogenizing zone, devolatilization section and discharge supercharging section according to difference in functionality, the major function of described main drawing-in device 1 is to add material and carry out Solid Conveying and Melting; Melt zone mainly is that upstream master's drawing-in device 1 is carried the abundant fusion of polymer of coming and carried out preliminary hybrid working; Exhaust section mainly is to get rid of the little molecule volatile matter that may contain in the melt; Homogenizing zone mainly is to carry the melt and the filler of coming to disperse, soak into and break up to the upstream; The devolatilization section mainly is the effect by negative pressure of vacuum, allows the small-molecule substance carried secretly in the melt from the surface volatilization of melt and extract, for the discharge supercharging of next section is prepared; Discharge supercharging section mainly is that the compression melt is set up a pressure stable district, extrudes from the mouth mould of twin-screw for melt and does last preparation.Main barrel 2 sides between melt zone and homogenizing zone are provided with the side drawing-in device, this side drawing-in device comprises hopper 101, below hopper 101, be provided with the first material extrusion device 102, below the outlet of the first material extrusion device 102, be provided with the second material extrusion device 103, the outlet of the second material extrusion device 103 communicates with main barrel 2, first, second material extrusion device is equipped with motor and barrel, and screw rod and screwing element are arranged in the barrel, also is provided with electric calorifie installation on the barrel barrel.
Certainly, above embodiment just is explanation rather than restriction the utility model, the above only is preferred embodiment of the present utility model, so all equivalences of being done according to the described scheme of the utility model patent claim change or modify, is included in the utility model patent claim.
Claims (2)
1. be with the double screw extruder of side drawing-in device, comprise main drawing-in device and main barrel, main barrel comprises two homodromal screw shaft cores and screwing element and cylindrical shell, the screw shaft core places in the cylindrical shell, be distributed with different screwing elements around the screw shaft core of different sections, make this main barrel have difference in functionality, be divided into melt zone according to difference in functionality, homogenizing zone, devolatilization section and discharge supercharging section, it is characterized in that: the main barrel side between described melt zone and the homogenizing zone is provided with the side drawing-in device, this side drawing-in device comprises hopper, below hopper, be provided with the first material extrusion device, below the outlet of the first material extrusion device, be provided with the second material extrusion device, the outlet of the second material extrusion device communicates with main barrel, also is provided with heater in the first and second material extrusion devices.
2. the double screw extruder of band side drawing-in device according to claim 1 is characterized in that, also is provided with exhaust section between described melt zone and the homogenizing zone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200204814U CN201913787U (en) | 2011-01-22 | 2011-01-22 | Double-screw extruder with lateral feeding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200204814U CN201913787U (en) | 2011-01-22 | 2011-01-22 | Double-screw extruder with lateral feeding device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201913787U true CN201913787U (en) | 2011-08-03 |
Family
ID=44413601
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200204814U Expired - Lifetime CN201913787U (en) | 2011-01-22 | 2011-01-22 | Double-screw extruder with lateral feeding device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201913787U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113352565A (en) * | 2021-05-26 | 2021-09-07 | 舟山德玛吉实业有限公司 | High-performance chromium carbide permeable machine barrel screw |
-
2011
- 2011-01-22 CN CN2011200204814U patent/CN201913787U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113352565A (en) * | 2021-05-26 | 2021-09-07 | 舟山德玛吉实业有限公司 | High-performance chromium carbide permeable machine barrel screw |
| CN113352565B (en) * | 2021-05-26 | 2023-06-02 | 舟山德玛吉实业有限公司 | High-performance chromium carbide penetrating machine barrel screw |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 523000 Dongguan City, Liaobu Province town of Tong Qu Qu Ling Road, No. two, No. 11, No. Patentee after: Guangdong Meisu Plastic Technology Co. Ltd. Address before: 523000 Dongguan City, Liaobu Province town of Tong Qu Qu Ling Road, No. two, No. 11, No. Patentee before: Dongguan Meisu Plastic Science & Technology Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110803 |