CN102241125B - Nonstop long-acting filter for extruder - Google Patents
Nonstop long-acting filter for extruder Download PDFInfo
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- CN102241125B CN102241125B CN201110186190.7A CN201110186190A CN102241125B CN 102241125 B CN102241125 B CN 102241125B CN 201110186190 A CN201110186190 A CN 201110186190A CN 102241125 B CN102241125 B CN 102241125B
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- filter
- screen tube
- screen
- reversal valve
- cylinder shell
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Abstract
The invention relates to a nonstop long-acting filter for extruder, which comprises a filter-cylinder housing and filtering devices disposed inside the filter cylinder housing, and is characterized in that the filter cylinder housing is equipped with a feed inlet and a feed outlet; two parallelly arranged filtering devices, which are spare mutually, are disposed inside the filter screen housing; a spliter plate is disposed between the two filtering devices; charging chambers are formed by the inner wall of the filter screen housing, the sidewall of the spliter plate and the filter screens; discharging chambers are formed between the inner wall of the filter screen cylinder and fluid separation bodies; the two ends of the spliter plate are respectively a charging end which communicates with the charging chamber and a discharge end which communicates with the discharging chamber; an inlet reversing valve is disposed on the charging end and an inlet of the inlet reversing valve communicates with the feed inlet; an outlet reversing valve is disposed on the discharge end and an outlet of the outlet reversing valve communicates with the feed outlet; one end of the filtering device is equipped with a bulkhead, which is detachably installed on the filter cylinder housing. Two parallelly arranged filtering devices are adopted to accomplish the nonstop filtering screen changing operation and meet the requirement of continuous production.
Description
Technical field
The present invention relates to the filter technology field of plastics machinery, especially a kind of extruder is with not shutting down long-acting filter.
Background technology
In plastics machinery, filter is also a critical component, plastic raw materials enters filter net device after extruder heating spiral rod is extruded, because the plastic raw materials overwhelming majority can not adopt brand-new material article of manufacture, need in process of production to add various auxiliary materials, as color material, modification agent etc., in the plastics that can be recycled, also can add a certain proportion of recovery cycle stock, because the impurity containing in these auxiliary materials is more, in extruded product, containing impurity can affect post-production and the use of product, filter is filtered material, and can improve the mixed effect of material, therefore filter has become a requisite part.Traditional long-acting filter comprises filter cylinder shell, is arranged on screen tube, shunting body, front plug, rear plug and heater in filter cylinder shell.The two ends of filter cylinder shell are respectively by front plug and the sealing of rear plug, shunting body is arranged on screen tube inner chamber, on screen tube, there are several through holes, screen tube skin is coated with one or more layers screen pack, on filter cylinder shell, be provided with charging aperture and discharging opening, on the housing of filter screen shell, have multiple cylindrical heaters.Operation principle: the plastic raw materials that extruder is extruded molten condition enters filter cylinder from charging aperture, is concentrated to discharging opening and is extruded by shunting body after filtering, then enters down operation.Due to the particularity of the production of plastic raw materials; extruding raw material, spray silk or go out in membrane process; need, through being heated into molten condition, could being formed by mould the goods of various shapes, and all need not shut down use; the pressure that clean screen pack produces is less; if when in plastic raw materials, impurities is more, filter screen occurs stop up over pressure and cause danger, along with the increase of pressure; it is many that amount of impurities in the plastics of holding back on screen pack just becomes, thereby block screen pack.Therefore after filter screen blocks, should change in time filter screen, while changing filter screen, must shut down, in the time changing the screen pack blocking.Quantity-produced later process is brought to impact, and shutdown needs again to heat, reenter later process after changing filter screen reparation, wastes energy, produces substandard products, causes waste.
Summary of the invention
The technical problem to be solved in the present invention is: in order to solve the deficiencies in the prior art, the invention provides a kind of extruder with not shutting down long-acting filter, adopt two filters in parallel to realize and do not shut down draping operation, meet continuous production requirement.
The technical solution adopted for the present invention to solve the technical problems is: a kind of extruder is with not shutting down long-acting filter, comprise filter cylinder shell and be arranged on the filter in filter cylinder shell inner cavity, on filter cylinder shell, there is charging aperture and discharging opening, described filter comprises screen tube and is coaxially arranged on the shunting body in screen tube, on the cylindrical shell of screen tube, there is several through holes, screen tube skin is coated with screen pack, in described filter screen shell inner cavity, be arranged in parallel two covers filter for subsequent use each other, between two sets filtering device, be provided with demarcation strip, between the inwall of filter screen shell and demarcation strip sidewall and screen pack, form feed cavity, between screen tube inwall and shunting body, form discharging chamber, the two ends of demarcation strip are respectively the feed end communicating with feed cavity and the discharge end communicating with discharging chamber, import reversal valve is installed on feed end, the import of import reversal valve is communicated with charging aperture, outlet reversal valve is installed on discharge end, the outlet of outlet reversal valve is communicated with discharging opening, one end of filter is provided with plug, plug is detachably arranged on filter cylinder shell.
For making reversal valve convenient operation, described import reversal valve and outlet reversal valve include reversing valve core and pedestal are installed, and pedestal is installed and is arranged on filter cylinder shell, and the external part of reversing valve core extend out to outside filter cylinder shell through pedestal is installed.
It is smooth and easy for material is flowed in filter cylinder shell inner cavity, raise the efficiency, the shunting body of described filter has a guiding cone, the large diameter end of guiding cone is fixedly connected with screen tube inwall, the larger diameter end of guiding cone also has a bullet for shutoff screen tube end face, between bullet and filter cylinder shell, have for fused materials and enter the passage of feed cavity, the smaller diameter end of shunting body is stretched out screen tube, screen tube is fixedly connected with plug near one end of the minor diameter of guiding cone, between the smaller diameter end of guiding cone and plug, there is the passage flowing out for fused materials, on plug, there is the perforate communicating with demarcation strip top discharge end.
For convenience of dismounting, large diameter end and the screen tube inner thread of described guiding cone removably connect, and screen tube removably connects near one end and the plug screw thread of the minor diameter of guiding cone.
The invention has the beneficial effects as follows; extruder of the present invention adopts with not shutting down long-acting filter the two sets filtering device being arranged in parallel; do not shut down replacing filter by regulating import reversal valve and outlet reversal valve to realize; when replacing, do not need to regulate any operation of extruder; input and output material is without significant change; thereby assurance later process is normally worked; reduce the generation of substandard products; shutdown operation is not enhanced productivity; save the energy; save time, save material, after changing or clean after filter net device in the state of quitting work being detachable for future use.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the present invention is further described.
Fig. 1 is the structural representation of not shutting down long-acting filter most preferred embodiment for extruder of the present invention;
Fig. 2 is the A-A cutaway view of Fig. 1;
Fig. 3 is that Fig. 1 is B-B cutaway view;
Fig. 4 is the structural representation after import reversal valve rotates 90 ° with outlet reversal valve in Fig. 1;
In figure: 1. filter cylinder shell, 2. filter, 21. screen tubes, 22. shunting bodies, 22-1. guiding cone, 22-2. bullet, 3. demarcation strip, 31. feed ends, 32. discharge ends, 4. import reversal valve, 5. outlet reversal valve, 6. plug.
The specific embodiment
In conjunction with the accompanying drawings, the present invention is further detailed explanation.These accompanying drawings are the schematic diagram of simplification, and basic structure of the present invention is only described in a schematic way, and therefore it only shows the formation relevant with the present invention.
Fig. 1-4th, the most preferred embodiment of not shutting down long-acting filter for extruder of the present invention, comprise filter cylinder shell 1 and be arranged on the filter 2 in filter cylinder shell 1 inner chamber, on filter cylinder shell 1, there is charging aperture and discharging opening, filter 2 comprises screen tube 21 and is coaxially arranged on the shunting body 22 in screen tube 21, on the cylindrical shell of screen tube 21, there is several through holes, screen tube 21 skins are coated with screen pack, in filter screen shell 1 inner chamber, be arranged in parallel two covers filter 2 for subsequent use each other, between two sets filtering device 2, there is the demarcation strip 3 with filter cylinder shell 1 integrative-structure, between the inwall of filter screen shell 1 and demarcation strip 3 sidewalls and screen pack, form feed cavity, between screen tube 21 inwalls and shunting body 22, form discharging chamber, the two ends of demarcation strip 3 are respectively the feed end 31 communicating with feed cavity and the discharge end 32 communicating with discharging chamber, import reversal valve 4 is installed on feed end 31, the import of import reversal valve 4 is communicated with charging aperture, outlet reversal valve 5 is installed on discharge end 32, the outlet of outlet reversal valve 5 is communicated with discharging opening, one end of filter 2 is provided with plug 6, plug 6 is detachably arranged on filter cylinder shell 1, usual manner is that plug 6 is threaded with filter cylinder shell 1.
Import reversal valve 4 and outlet reversal valve 5 include reversing valve core and pedestal are installed, and pedestal is installed and is arranged on filter cylinder shell 1, and the external part of reversing valve core extend out to outside filter cylinder shell 1 through pedestal is installed.
The shunting body 22 of filter 2 has a guiding cone 22-1, large diameter end and screen tube 21 inner threads of guiding cone 22-1 removably connect, the larger diameter end of guiding cone 22-1 also has a bullet 22-2 for shutoff screen tube 21 end faces, between bullet 22-2 and filter cylinder shell 1, have for fused materials and enter the passage of feed cavity, the smaller diameter end of shunting body 22 is stretched out screen tube 21, screen tube 21 removably connects near one end and plug 6 screw threads of the minor diameter of guiding cone 22-1, between the smaller diameter end of guiding cone 22-1 and plug 6, there is the passage flowing out for fused materials, on plug 6, there is the perforate communicating with demarcation strip 3 top discharge ends 32.
The present invention has changed traditional filtration device structure, and real realization does not need to shut down the object of draping, and the screen tube 21 of employing is core structure, and filter area is large.When use, need regulate import reversal valve 4 and outlet reversal valve 5 simultaneously, make a filter 2 in running order, another now can be changed the filter 2 in halted state, then screen pack is cleaned for future use in halted state.
Shown in Fig. 1, the filter 2 of below is in running order, and the filter 2 of top is in halted state.The charging aperture of fused materials from filter cylinder shell 1 enters, the feed cavity of filter 2 below entering under the effect of import reversal valve 4, fused materials is filtered and is entered screen tube 21 inner chambers by screen pack, impurity is filtered net and removes, fused materials flows out from discharging opening after the guiding of shunting body 22 enters outlet reversal valve 5, completes the filter operation of material.
Shown in Fig. 2, after operation simultaneously makes import reversal valve and outlet reversal valve rotate 90 °, the filter 2 of top is in running order, and the filter 2 of below is in halted state.The charging aperture of fused materials from filter cylinder shell 1 enters, the feed cavity of filter 2 above entering under the effect of import reversal valve 4, fused materials is filtered and is entered screen tube 21 inner chambers by screen pack, impurity is filtered net and removes, fused materials flows out from discharging opening after the guiding of shunting body 22 enters outlet reversal valve 5, completes the filter operation of material.
Take above-mentioned foundation desirable embodiment of the present invention as enlightenment, by above-mentioned description, relevant staff can, not departing from the scope of this invention technological thought, carry out various change and modification completely.The technical scope of this invention is not limited to the content on description, must determine its technical scope according to claim scope.
Claims (4)
1. an extruder is with not shutting down long-acting filter, comprise filter cylinder shell (1) and be arranged on the filter (2) in filter cylinder shell (1) inner chamber, filter cylinder shell has charging aperture and discharging opening on (1), described filter (2) comprises screen tube (21) and is coaxially arranged on the shunting body (22) in screen tube (21), on the cylindrical shell of screen tube (21), there is several through holes, screen tube (21) skin is coated with screen pack, it is characterized in that: in described filter screen shell (1) inner chamber, be arranged in parallel two covers filter (2) for subsequent use each other, between two sets filtering device (2), there is demarcation strip (3), between the inwall of filter screen shell (1) and demarcation strip (3) sidewall and screen pack, form feed cavity, between screen tube (21) inwall and shunting body (22), form discharging chamber, the two ends of demarcation strip (3) are respectively the feed end (31) communicating with feed cavity and the discharge end (32) communicating with discharging chamber, import reversal valve (4) is installed on feed end (31), the import of import reversal valve (4) is communicated with charging aperture, outlet reversal valve (5) is installed on discharge end (32), the outlet of outlet reversal valve (5) is communicated with discharging opening, one end of filter (2) is provided with plug (6), plug (6) is detachably arranged on filter cylinder shell (1).
2. extruder as claimed in claim 1 is with not shutting down long-acting filter; it is characterized in that: described import reversal valve (4) and outlet reversal valve (5) include reversing valve core and pedestal is installed; pedestal is installed and is arranged on filter cylinder shell (1) above, the external part of reversing valve core extend out to outside filter cylinder shell (1) through pedestal is installed.
3. extruder as claimed in claim 1 is with not shutting down long-acting filter, it is characterized in that: the shunting body (22) of described filter (2) has a guiding cone (22-1), the large diameter end of guiding cone (22-1) is installed and is connected with screen tube (21) inwall, the larger diameter end of guiding cone (22-1) also has a bullet (22-2) for shutoff screen tube (21) end face, between bullet (22-2) and filter cylinder shell (1), have for fused materials and enter the passage of feed cavity, the smaller diameter end of shunting body (22) is stretched out screen tube (21), screen tube (21) is installed and is connected with plug (6) near one end of the minor diameter of guiding cone (22-1), between the smaller diameter end of guiding cone (22-1) and plug (6), there is the passage flowing out for fused materials, on plug (6), there is the perforate communicating with demarcation strip (3) top discharge end (32).
4. extruder as claimed in claim 3 is with not shutting down long-acting filter; it is characterized in that: the large diameter end of described guiding cone (22-1) and screen tube (21) inner thread removably connect, screen tube (21) removably connects near one end and plug (6) screw thread of the minor diameter of guiding cone (22-1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110186190.7A CN102241125B (en) | 2011-06-30 | 2011-06-30 | Nonstop long-acting filter for extruder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110186190.7A CN102241125B (en) | 2011-06-30 | 2011-06-30 | Nonstop long-acting filter for extruder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102241125A CN102241125A (en) | 2011-11-16 |
| CN102241125B true CN102241125B (en) | 2014-06-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110186190.7A Expired - Fee Related CN102241125B (en) | 2011-06-30 | 2011-06-30 | Nonstop long-acting filter for extruder |
Country Status (1)
| Country | Link |
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| CN (1) | CN102241125B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3308941A1 (en) | 2016-10-13 | 2018-04-18 | Starlinger & Co. Gesellschaft m.b.H. | Apparatus and process for filtering polymer melts |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102744847A (en) * | 2012-03-05 | 2012-10-24 | 陈崇锡 | Plastic extruding machine with intermediate filter |
| CN104494106B (en) * | 2014-12-31 | 2016-09-21 | 常州市永明机械制造有限公司 | Double filter element long-acting draping safety devices on extruder |
| CN104760152B (en) * | 2015-03-12 | 2017-10-31 | 广东仕诚塑料机械有限公司 | A kind of granular membrane |
| CN108043080A (en) * | 2017-12-21 | 2018-05-18 | 苏州星火丰盈环保包装有限公司 | A kind of inflation film manufacturing machine filter device |
| CN109296486A (en) * | 2018-10-31 | 2019-02-01 | 沈阳航天新光集团有限公司 | A kind of high pressure resistant light-weighted small flow resistance filter core |
| CN111575821B (en) * | 2020-05-25 | 2020-12-18 | 滕州永喜无纺布有限公司 | Non-woven fabric recovery processing device |
| CN113878845A (en) * | 2021-09-30 | 2022-01-04 | 雁峰集团有限公司 | Plastic extruder with filter element replaced without shutdown and plastic wire drawing machine |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6422852B1 (en) * | 1998-04-30 | 2002-07-23 | Kreyenborg Verwaltungen Und Beteiligungen Gmbh & Co. Kg | Filter device for extruders and injection moulding machines |
| CN2592366Y (en) * | 2003-01-07 | 2003-12-17 | 潘应亮 | Non-stop filter net changing apparatus for four-channel columntype extruder |
| DE102005046286A1 (en) * | 2005-09-28 | 2007-03-29 | Saurer Gmbh & Co. Kg | Determination of purity or dispersion of molten polymer involves passing it through several filters of different fineness placed in parallel |
| CN201211704Y (en) * | 2008-06-02 | 2009-03-25 | 李新忠 | Filter head of plastic extrusion machine |
| CN202162990U (en) * | 2011-06-30 | 2012-03-14 | 常州市创信知识产权代理有限公司 | Nonstop long-acting filter for extruding machine |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3625522B2 (en) * | 1995-05-02 | 2005-03-02 | 四郎 土谷 | Screen changer for plastic extrusion |
-
2011
- 2011-06-30 CN CN201110186190.7A patent/CN102241125B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6422852B1 (en) * | 1998-04-30 | 2002-07-23 | Kreyenborg Verwaltungen Und Beteiligungen Gmbh & Co. Kg | Filter device for extruders and injection moulding machines |
| CN2592366Y (en) * | 2003-01-07 | 2003-12-17 | 潘应亮 | Non-stop filter net changing apparatus for four-channel columntype extruder |
| DE102005046286A1 (en) * | 2005-09-28 | 2007-03-29 | Saurer Gmbh & Co. Kg | Determination of purity or dispersion of molten polymer involves passing it through several filters of different fineness placed in parallel |
| CN201211704Y (en) * | 2008-06-02 | 2009-03-25 | 李新忠 | Filter head of plastic extrusion machine |
| CN202162990U (en) * | 2011-06-30 | 2012-03-14 | 常州市创信知识产权代理有限公司 | Nonstop long-acting filter for extruding machine |
Non-Patent Citations (1)
| Title |
|---|
| JP特开平8-230017A 1996.09.10 |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3308941A1 (en) | 2016-10-13 | 2018-04-18 | Starlinger & Co. Gesellschaft m.b.H. | Apparatus and process for filtering polymer melts |
| WO2018069089A1 (en) | 2016-10-13 | 2018-04-19 | Starlinger & Co Gesellschaft M.B.H. | Apparatus and method for filtration of polymer melt |
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| Publication number | Publication date |
|---|---|
| CN102241125A (en) | 2011-11-16 |
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Effective date of registration: 20180507 Address after: 325200 North Village, Tang Xia Town, Ruian City, Wenzhou, Zhejiang Patentee after: RUIAN JUNCHENG ENGINEERING PLASTICS FACTORY Address before: 213161 room 216, 2 building, 158 East Renmin Road, Hutang Town, Wujin District, Changzhou, Jiangsu. Patentee before: Changzhou Chuangxin Knowledge Property Agency Co.,Ltd. |
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Granted publication date: 20140604 Termination date: 20180630 |
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| CF01 | Termination of patent right due to non-payment of annual fee |