CN203805274U - Extruder screen changing backwashing device - Google Patents
Extruder screen changing backwashing device Download PDFInfo
- Publication number
- CN203805274U CN203805274U CN201420189187.XU CN201420189187U CN203805274U CN 203805274 U CN203805274 U CN 203805274U CN 201420189187 U CN201420189187 U CN 201420189187U CN 203805274 U CN203805274 U CN 203805274U
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- Prior art keywords
- hole
- piston
- back washing
- passage
- pedestal
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- Expired - Fee Related
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- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The utility model relates to an extruder trades net backwashing device, be provided with the pedestal, first piston group and second piston group, utilize the first piston rod of first piston group and second piston group and the mutual feed port and the discharge opening that communicate the pedestal and establish of second piston rod, make the extruder can be under the non-stop state, change the first filter screen of first piston group or the second filter screen of second piston group, and can rely on crisscross intercommunication feed port and the discharge opening of first piston rod and second piston rod, make the extruder can carry out backwashing to first filter screen or second filter screen.
Description
Technical field
The utility model relates to a kind of extruder draping back washing device, is espespecially used in extruder, and the draping back washing device that has replaceable filter screen and filter screen is carried out to back washing.
Background technology
The filter screen of extruder is mainly used as the filtration of raw material, therefore when using after a period of time, on filter screen, have and attached impurity, hinder the conveying of raw material, therefore must often be changed, existing extruder is in the time changing filter screen, must stop extruder running, cause production capacity loss, so, to how to solve extruder and change the problem that filter screen causes production capacity to lose, be the problem of relevant research and development that dealer desires most ardently.
Utility model content
Main purpose of the present utility model is to be, utilize draping back washing device by extruder in changing when filter screen, do not need to stop extruder running, and then reduce production capacity loss.
Secondary objective of the present utility model is to be, utilize draping back washing device by extruder in cleaning filter screen, to increase the service life of filter screen.
For achieving the above object, the technical solution adopted in the utility model is:
A kind of extruder draping back washing device, is characterized in that: be at least provided with pedestal, first piston group and the second piston group, wherein:
First piston hole and the second piston hole in this pedestal, are arranged side by side, and first piston hole and the second piston hole run through pedestal left and right two sides, and pedestal front surface and rear surface are respectively arranged with charging hole and discharge opening, and in charging hole, be provided with the first feeding-passage and the second feeding-passage, the first feeding-passage is communicated in first piston hole, the second feeding-passage is communicated in the second piston hole, and in discharge opening, be provided with the first tapping channel, the first back washing passage, the second tapping channel and the second back washing passage, the first tapping channel and the first back washing passage are communicated in respectively first piston hole, the second tapping channel and the second back washing passage are communicated in respectively the second piston hole, and pedestal is provided with the first relief hole and the second relief hole in charging hole one side, the first relief hole is communicated in first piston hole, the second relief hole is communicated in the second piston hole,
This first piston group is provided with first piston bar, first piston bar is positioned at first piston hole, first piston bar is provided with the first filtrate hole at the side surface near charging hole, and in the first filtrate hole, be provided with the first filter screen and the first fixed network, and first piston bar is provided with the first material road and the first back washing hole in the side surface near discharge opening, and makes the first material road and the first back washing hole be communicated in respectively the first filtrate hole;
This second piston group is provided with the second piston rod, the second piston rod is positioned at the second piston hole, the second piston rod is provided with the second filtrate hole at the side surface near charging hole, and in the second filtrate hole, be provided with the second filter screen and the second fixed network, and the second piston rod is provided with the second material road and the second back washing hole at the side surface near discharge opening, and makes the second material road and the second back washing hole be communicated in respectively the second filtrate hole.
Wherein: this pedestal is connected with discharge device in the side near discharge opening, discharge device has the discharging channel that is communicated with discharge opening, and in discharging channel, is provided with blowdown valve, and blowdown valve has communicating passage and blowdown passage.
Wherein: this pedestal one side is provided with hydraulic press, and hydraulic press has the first oil hydraulic cylinder and the second oil hydraulic cylinder, and the first oil hydraulic cylinder is connected in the first piston bar of first piston group, and the second oil hydraulic cylinder is connected in the second piston rod of the second piston group.
The utility model extruder draping back washing device; utilize first piston bar to be communicated with alternately charging hole and discharge opening with the second piston rod; make the extruder can be under non-stop-machine state; the first filter screen or the second filter screen are changed; and can rely on first piston bar and the second piston rod to interlock to be communicated with charging hole and discharge opening, to make extruder carry out back washing to the first filter screen or the second filter screen.
Brief description of the drawings
Fig. 1 is stereo appearance figure of the present utility model;
Fig. 2 is the stereo appearance figure of pedestal of the present utility model, first piston group and the second piston group;
Fig. 3 is the three-dimensional exploded view () of pedestal of the present utility model, first piston group and the second piston group;
Fig. 4 is the three-dimensional exploded view (two) of pedestal of the present utility model, first piston group and the second piston group;
Fig. 5 is the sectional axonometric drawing () of the utility model pedestal;
Fig. 6 is the sectional axonometric drawing (two) of the utility model pedestal;
Fig. 7 is the generalized section () of the utility model in the time carrying out filtrate;
Fig. 8 is the generalized section (two) of the utility model in the time carrying out filtrate;
Fig. 9 is the generalized section of the utility model in the time changing filter screen;
Figure 10 is the generalized section () of the utility model in the time carrying out blowdown;
Figure 11 is the generalized section (two) of the utility model in the time carrying out blowdown;
Figure 12 is the first piston group generalized section of the utility model first piston group in the time carrying out back washing;
Figure 13 is the second piston group generalized section of the utility model first piston group in the time carrying out back washing;
Figure 14 is the first piston group generalized section of the utility model the second piston group in the time carrying out back washing;
Figure 15 is the second piston group generalized section of the utility model the second piston group in the time carrying out back washing.
Description of reference numerals: 1-pedestal; 11-first piston hole; 12-the second piston hole; 13-charging hole; 131-the first feeding-passage; 132-the second feeding-passage; 14-discharge opening; 141-the first tapping channel; 142-the first back washing passage; 143-the second tapping channel; 144-the second back washing passage; 15-the first relief hole; 16-the second relief hole; 17-Connection Block; 2-first piston group; 21-first piston bar; 211-the first filtrate hole; 212-the first material road; 213-the first back washing hole; 214-the first fixed leg; 22-the first filter screen; 23-the first fixed network; 231-the first fixing hole; 3-the second piston group; 31-the second piston rod; 311-the second filtrate hole; 312-the second material road; 313-the second back washing hole; 314-the second fixed leg; 32-the second filter screen; 33-the second fixed network; 331-the second fixing hole; 4-discharge device; 41-discharging channel; 42-blowdown valve; 421-communicating passage; 422-blowdown passage; 5-hydraulic press; 51-the first oil hydraulic cylinder; 52-the second oil hydraulic cylinder; 6-pedestal.
Detailed description of the invention
Refer to Fig. 1 institute to shown in Fig. 9, find out by knowing in figure, the utility model is provided with pedestal 1, first piston group 2 and the second piston group 3, and pedestal 1 is arranged on pedestal 6, wherein:
First piston hole 11 and the second piston hole 12 in this pedestal 1, are arranged side by side, and first piston hole 11 and the second piston hole 12 run through pedestal 1 left and right two sides, and pedestal 1 front surface and rear surface are respectively arranged with charging hole 13 and discharge opening 14, pedestal 1 is provided with to connect the Connection Block 17 of charger (not shown) in charging hole 13 places, and in charging hole 13, be provided with the first feeding-passage 131 and the second feeding-passage 132, the first feeding-passage 131 is communicated in first piston hole 11, the second feeding-passage 132 is communicated in the second piston hole 12, and in discharge opening 14, be provided with the first tapping channel 141, the first back washing passage 142, the second tapping channel 143 and the second back washing passage 144, the first tapping channel 141 and the first back washing passage 142 are communicated in respectively first piston hole 11, the second tapping channel 143 and the second back washing passage 144 are communicated in respectively the second piston hole 12, and pedestal 1 is provided with the first relief hole 15 and the second relief hole 16 in charging hole 13 1 sides, the first relief hole 15 is communicated in first piston hole 11, the second relief hole 16 is communicated in the second piston hole 12.
This first piston group 2 is provided with first piston bar 21, first piston bar 21 1 side surfaces are provided with the first filtrate hole 211, and in the first filtrate hole 211, be provided with the first filter screen 22 and the first fixed network 23, opposite side surface is provided with the first material road 212 and the first back washing hole 213, and make the first material road 212 and the first back washing hole 213 be communicated in respectively the first filtrate hole 211, and first piston bar 21 is movably set in the first piston hole 11 of pedestal 1, allow the first filtrate hole 211 of first piston bar 21 near the charging hole 13 of pedestal 1, and the first material road 212 and the first back washing hole 213 are near the discharge opening 14 of pedestal 1, moreover the sidewall in the first filtrate hole 211 convexes with the first fixed leg 214, and being provided with the first fixing hole 231, the first fixed networks 23, the first fixed network 23 sides utilize the first fixing hole 231 to be fixed on the first fixed leg 214.
This the second piston group 3 is provided with the second piston rod 31, the second piston rod 31 1 side surfaces are provided with the second filtrate hole 311, and in the second filtrate hole 311, be provided with the second filter screen 32 and the second fixed network 33, opposite side surface is provided with the second material road 312 and the second back washing hole 313, and make the second material road 312 and the second back washing hole 313 be communicated in respectively the second filtrate hole 311, and the second piston rod 31 is movably set in the second piston hole 12 of pedestal 1, allow the second filtrate hole 311 of the second piston rod 31 near the charging hole 13 of pedestal 1, and the second material road 312 and the second back washing hole 313 are near the discharge opening 14 of pedestal 1, moreover the sidewall in the second filtrate hole 311 convexes with the second fixed leg 314, and being provided with the second fixing hole 331, the second fixed networks 33, the second fixed network 33 sides utilize the second fixing hole 331 to be fixed on the second fixed leg 314.
Moreover, aforementioned pedestal 1 is connected with discharge device 4 in the side near discharge opening 14, discharge device 4 has the discharging channel 41 that is communicated with discharge opening 14, and in discharging channel 41, be provided with the blowdown valve 42 in order to sealing or unlatching discharging channel 41, blowdown valve 42 has communicating passage 421 and blowdown passage 422; Again, pedestal 1 one sides are provided with hydraulic press 5, hydraulic press 5 has the first oil hydraulic cylinder 51 and the second oil hydraulic cylinder 52, the first oil hydraulic cylinder 51 is connected in the first piston bar 21 of first piston group 2, the second oil hydraulic cylinder 52 is connected in the second piston rod 31 of the second piston group 3, and then controls first piston bar 21 and the second piston rod 31, displacement back and forth in the first piston hole 11 of pedestal 1 and the second piston hole 12, and hydraulic press 5 is connected with the blowdown valve 42 of discharge device 4, so that hydraulic press 5 can drive blowdown valve 42 starts.
Please refer to Fig. 1, shown in Fig. 7 and Fig. 8, by knowing and find out in figure, first piston group 2 of the present utility model and the second piston group 3 are in the time normally carrying out filtrate, the blowdown valve 42 of hydraulic press 5 meeting start discharge devices 4, make the communicating passage 421 of blowdown valve 42 be communicated with discharging channel 41, allow discharging channel 41 be conducting state, and hydraulic press 5 is controlled the first piston bar 21 of first piston group 2 and the second piston rod 31 of the second piston group 3, allow the first filtrate hole 211 of first piston bar 21 be communicated in the first feeding-passage 131 of charging hole 13, the first material road 212 and the first back washing hole 213 are communicated in respectively the first tapping channel 141 and the first back washing passage 142 of discharge opening 14, and the second filtrate hole 311 of the second piston rod 31 is communicated in the second feeding-passage 132 of charging hole 13, the second material road 312 and the second back washing hole 313 are communicated in respectively the second tapping channel 143 and the second back washing passage 144 of discharge opening 14, and the first relief hole 15 of pedestal 1 can be covered by the bar wall of first piston bar 21 and forms sealing, and same can being covered by the bar wall of the second piston rod 31 of the second relief hole 16 forms sealing, rely on upper, after raw material is entered by the charging hole 13 of pedestal 1, can flow into the first filtrate hole 211 and the second filtrate hole 311 by the first feeding-passage 131 and the second feeding-passage 132 respectively, and after being filtered by the first filter screen 22 and the second filter screen 32, the discharging channel 41 that flows into discharge device 4 by discharge opening 14 is again discharged.
Refer to Fig. 1, Fig. 3, shown in Fig. 8 and Fig. 9, by knowing and find out in figure, when the second piston group 3 is in the time changing filter screen, hydraulic press 5 can be released second piston rod 31 one end outside pedestal 1, user can be changed the second filter screen 32 of the second piston rod 31, now first piston group 2 can be carried out filtrate simultaneously, and do not need to stop filtrate, identical, when first piston group 2 is in the time changing filter screen, hydraulic press 5 can be released first piston bar 21 one end outside pedestal 1, user can be changed the first filter screen 22 of first piston bar 21, now the second piston group 3 can be carried out filtrate simultaneously, and do not need to stop filtrate.
Refer to Fig. 1, Figure 10 and Figure 11; by knowing and find out in figure; when extruder sends the too high signal of mold pressing; or because changing the first filter screen 22, the second filter screen 32 and back washing the first filter screen 22, the second filter screen 32; need the working time to have little time release pressure; now hydraulic press 5 can be controlled blowdown valve 42; make the blowdown passage 422 of blowdown valve 42 be right against discharge opening 14 to allow raw material release discharge device 4 by blowdown passage 422; and not by discharging channel 41, to avoid raw material because shutting down the processing procedure puzzlement being caused.
Refer to shown in Fig. 1 and Figure 12 to Figure 15, can be found out by Figure 12 and Figure 13, in the time that first piston group 2 changes over back washing state by filtrate state, keep the filtrate state of the second piston group 3, and allow the blowdown valve 42 of hydraulic press 5 start discharge devices 4, make the discharging channel 41 of blowdown valve 42 be closed, and then make discharge opening 14 form sealing, and allow hydraulic press 5 promote first piston bar 21, make the first filtrate hole 211 of first piston bar 21 be communicated in the first relief hole 15, and the first material road 212 is communicated in the first back washing passage 142, so, the raw material filtering via the second piston group 3, can seal because of discharge opening 14, and flow towards first piston bar 21 from the first back washing passage 142, and discharged by the first relief hole 15 after by first piston bar 21, allow raw material reverse flow through first piston bar 21, and then the first filter screen 22 is carried out to back washing, same, refer to Figure 14 and Figure 15, in the time that the second piston group 3 changes over back washing state by filtrate state, keep the filtrate state of first piston group 2, and allow the blowdown valve 42 of hydraulic press 5 start discharge devices 4, make the discharging channel 41 of blowdown valve 42 be closed, and then make discharge opening 14 form sealing, and allow hydraulic press 5 promote the second piston rod 31, make the second filtrate hole 311 of the second piston rod 31 be communicated in the second relief hole 16, and the second material road 312 is communicated in the second back washing passage 144, so, the raw material filtering via first piston group 2, can seal because of discharge opening 14, and flow towards the second piston rod 31 from the second back washing passage 144, and discharged by the second relief hole 16 after by the second piston rod 31, allow raw material reverse flow through the second piston rod 31, and then the second filter screen 32 is carried out to back washing.
Claims (3)
1. an extruder draping back washing device, is characterized in that: be at least provided with pedestal, first piston group and the second piston group, wherein:
First piston hole and the second piston hole in this pedestal, are arranged side by side, and first piston hole and the second piston hole run through pedestal left and right two sides, and pedestal front surface and rear surface are respectively arranged with charging hole and discharge opening, and in charging hole, be provided with the first feeding-passage and the second feeding-passage, the first feeding-passage is communicated in first piston hole, the second feeding-passage is communicated in the second piston hole, and in discharge opening, be provided with the first tapping channel, the first back washing passage, the second tapping channel and the second back washing passage, the first tapping channel and the first back washing passage are communicated in respectively first piston hole, the second tapping channel and the second back washing passage are communicated in respectively the second piston hole, and pedestal is provided with the first relief hole and the second relief hole in charging hole one side, the first relief hole is communicated in first piston hole, the second relief hole is communicated in the second piston hole,
This first piston group is provided with first piston bar, first piston bar is positioned at first piston hole, first piston bar is provided with the first filtrate hole at the side surface near charging hole, and in the first filtrate hole, be provided with the first filter screen and the first fixed network, and first piston bar is provided with the first material road and the first back washing hole in the side surface near discharge opening, and makes the first material road and the first back washing hole be communicated in respectively the first filtrate hole;
This second piston group is provided with the second piston rod, the second piston rod is positioned at the second piston hole, the second piston rod is provided with the second filtrate hole at the side surface near charging hole, and in the second filtrate hole, be provided with the second filter screen and the second fixed network, and the second piston rod is provided with the second material road and the second back washing hole at the side surface near discharge opening, and makes the second material road and the second back washing hole be communicated in respectively the second filtrate hole.
2. extruder draping back washing device according to claim 1, it is characterized in that: this pedestal is connected with discharge device in the side near discharge opening, discharge device has the discharging channel that is communicated with discharge opening, and in discharging channel, be provided with blowdown valve, blowdown valve has communicating passage and blowdown passage.
3. extruder draping back washing device according to claim 1, it is characterized in that: this pedestal one side is provided with hydraulic press, hydraulic press has the first oil hydraulic cylinder and the second oil hydraulic cylinder, the first oil hydraulic cylinder is connected in the first piston bar of first piston group, and the second oil hydraulic cylinder is connected in the second piston rod of the second piston group.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420189187.XU CN203805274U (en) | 2014-04-17 | 2014-04-17 | Extruder screen changing backwashing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420189187.XU CN203805274U (en) | 2014-04-17 | 2014-04-17 | Extruder screen changing backwashing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203805274U true CN203805274U (en) | 2014-09-03 |
Family
ID=51444076
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420189187.XU Expired - Fee Related CN203805274U (en) | 2014-04-17 | 2014-04-17 | Extruder screen changing backwashing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203805274U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3088158A1 (en) * | 2015-04-29 | 2016-11-02 | Nordson PPS GmbH | Filtering device for high-visous fluids |
| CN108127892A (en) * | 2017-12-21 | 2018-06-08 | 宁波高新区新柯保汽车科技有限公司 | Plastic extrusion apparatus |
-
2014
- 2014-04-17 CN CN201420189187.XU patent/CN203805274U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3088158A1 (en) * | 2015-04-29 | 2016-11-02 | Nordson PPS GmbH | Filtering device for high-visous fluids |
| CN106075971A (en) * | 2015-04-29 | 2016-11-09 | 诺信Pps有限公司 | Defecator for high-viscosity fluid |
| US9993752B2 (en) | 2015-04-29 | 2018-06-12 | Nordson Corporation | Filtering device for high-viscous fluids |
| CN106075971B (en) * | 2015-04-29 | 2020-03-17 | 诺信Pps有限公司 | Filter device for high-viscosity fluids |
| CN108127892A (en) * | 2017-12-21 | 2018-06-08 | 宁波高新区新柯保汽车科技有限公司 | Plastic extrusion apparatus |
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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: 20140903 Termination date: 20170417 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |