CN102241125A - Nonstop long-acting filter for extruder - Google Patents
Nonstop long-acting filter for extruder Download PDFInfo
- Publication number
- CN102241125A CN102241125A CN2011101861907A CN201110186190A CN102241125A CN 102241125 A CN102241125 A CN 102241125A CN 2011101861907 A CN2011101861907 A CN 2011101861907A CN 201110186190 A CN201110186190 A CN 201110186190A CN 102241125 A CN102241125 A CN 102241125A
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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 also is a critical component, plastic raw materials enters filter net device after extruding through the extruder heating spiral rod, because the plastic raw materials overwhelming majority can not adopt brand-new material article of manufacture, need add various auxiliary materials in process of production, as the color material, modification agent etc., also can add a certain proportion of recovery cycle stock in the plastics that can be recycled, because the impurity that contains in these auxiliary materials is more, containing impurity in the extruded product can influence the post-production and the use of product, filter makes material obtain filtering, and can improve the mixed effect of material, so filter has become necessary part.Traditional long-acting filter comprises the filter cylinder shell, is arranged on screen tube, branch fluid, preceding plug, back plug and heater in the filter cylinder shell.The two ends of filter cylinder shell are respectively by preceding plug and back plug sealing, divide fluid to be arranged on the screen tube inner chamber, have several through holes on the screen tube, the screen tube skin is coated with one or more layers screen pack, the filter cylinder shell is provided with charging aperture and discharging opening, and a plurality of cylindrical heaters are arranged on the housing of filter screen shell.Operation principle: the plastic raw materials that extruder is extruded molten condition enters filter cylinder from charging aperture, is concentrated by minute fluid after filtering and extrudes to discharging opening, enters down operation again.Because the particularity of the production of plastic raw materials; extruding raw material, spray silk or going out in the membrane process; need to be formed the goods of different shape by mould, and all need not shut down use through being heated into molten condition; the clean pressure that screen pack produced is less; if impurities more for a long time in the plastic raw materials, filter screen takes place to stop up over pressure and cause danger, along with the increase of pressure; it is many that amount of impurities in the plastics of being held back on the screen pack just becomes, thereby block screen pack.Therefore after filter screen blocks, should in time change filter screen, must shut down when changing filter screen, when changing the screen pack that blocks.The quantity-produced later process is brought influence, and shutdown need heat again after changing the filter screen reparation, reenter later process, 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 not shutting down the draping operation, satisfy 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 the filter that is arranged in the filter cylinder shell inner cavity; have charging aperture and discharging opening on the filter cylinder shell; described filter comprises screen tube and the coaxial branch fluid that is arranged in the screen tube; have several through holes on the cylindrical shell of screen tube; the screen tube skin is coated with screen pack; be arranged in parallel the standby each other filter of two covers in the described filter screen shell inner cavity; be provided with demarcation strip between the two sets filtering device; form feed cavity between the inwall of filter screen shell and demarcation strip sidewall and the screen pack; form the discharging chamber between screen tube inwall and the branch fluid; the two ends of demarcation strip are respectively feed end that communicates with feed cavity and the discharge end that communicates with the discharging chamber; the import reversal valve is installed on the feed end; the import of import reversal valve is communicated with charging aperture; the outlet reversal valve is installed on the discharge end; the outlet of outlet reversal valve is communicated with discharging opening; one end of filter is equipped with plug, and plug detachably is installed in the filter cylinder shell.
For making reversal valve be convenient to operation, described import reversal valve includes reversing valve core and pedestal is installed with the outlet reversal valve, pedestal is installed is installed on the filter cylinder shell, and the external part of reversing valve core passes the installation pedestal and extend out to outside the filter cylinder shell.
It is smooth and easy for material is flowed in the filter cylinder shell inner cavity, raise the efficiency, the branch fluid of described filter has a guiding cone, the great circle of guiding cone is directly held with the screen tube inwall and is fixedlyed connected, the larger diameter end of guiding cone also has a bullet that is used for shutoff screen tube end face, have between bullet and the filter cylinder shell for fused materials and enter the passage of feed cavity, divide the smaller diameter end of fluid to stretch out screen tube, screen tube is fixedlyed connected with plug near an end of the minor diameter of guiding cone, have the passage that flows out for fused materials between the smaller diameter end of guiding cone and the plug, have the perforate that communicates with demarcation strip top discharge end on the plug.
For for convenience detach, the great circle of described guiding cone is directly held with the screen tube inner thread and is removably connected, and screen tube removably connects near an 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 does not adopt the two sets filtering device that is arranged in parallel with not shutting down long-acting filter; realize not shutting down the replacing filter by regulating the import reversal valve and exporting reversal valve; need not regulate any operation of extruder during replacing; input and output material does not have significant change; thereby guarantee the later process operate as normal; reduce the generation of substandard products; shutdown operation is not enhanced productivity; energy savings; save time, save material, after the detachable back of filter net device that is in the state of quitting work is changed or is cleaned for future use.
Description of drawings
The present invention is further described below in conjunction with drawings and Examples.
Fig. 1 is the extruder of the present invention structural representation of not shutting down long-acting filter most preferred embodiment;
Fig. 2 is the A-A cutaway view of Fig. 1;
Fig. 3 is that Fig. 1 is the B-B cutaway view;
Fig. 4 is the structural representation after the import reversal valve rotates 90 ° with the outlet reversal valve among Fig. 1;
Among the figure: 1. filter cylinder shell, 2. filter, 21. screen tubes, 22. fens fluids, 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, basic structure of the present invention only is described in a schematic way, so it only show the formation relevant with the present invention.
Fig. 1-the 4th, the extruder of the present invention most preferred embodiment of not shutting down long-acting filter; comprise filter cylinder shell 1 and the filter 2 that is arranged in filter cylinder shell 1 inner chamber; have charging aperture and discharging opening on the filter cylinder shell 1; filter 2 comprises screen tube 21 and the coaxial branch fluid 22 that is arranged in the screen tube 21; have several through holes on the cylindrical shell of screen tube 21; screen tube 21 skins are coated with screen pack; be arranged in parallel the standby each other filter 2 of two covers in filter screen shell 1 inner chamber; has demarcation strip 3 between the two sets filtering device 2 with filter cylinder shell 1 integrative-structure; form feed cavity between the inwall of filter screen shell 1 and demarcation strip 3 sidewalls and the screen pack; form the discharging chamber between screen tube 21 inwalls and the branch fluid 22; the two ends of demarcation strip 3 are respectively feed end 31 that communicates with feed cavity and the discharge end 32 that communicates with the discharging chamber; import reversal valve 4 is installed on the feed end 31; the import of import reversal valve 4 is communicated with charging aperture; outlet reversal valve 5 is installed on the discharge end 32; the outlet of outlet reversal valve 5 is communicated with discharging opening; one end of filter 2 is equipped with plug 6; plug 6 detachably is installed in filter cylinder shell 1, and usual manner is that plug 6 is threaded with filter cylinder shell 1.
Import reversal valve 4 includes reversing valve core and pedestal is installed with outlet reversal valve 5, pedestal is installed is installed on the filter cylinder shell 1, and the external part of reversing valve core passes the installation pedestal and extend out to outside the filter cylinder shell 1.
The branch fluid 22 of filter 2 has a guiding cone 22-1, the great circle of guiding cone 22-1 is directly held with screen tube 21 inner threads and is removably connected, the larger diameter end of guiding cone 22-1 also has a bullet 22-2 who is used for shutoff screen tube 21 end faces, have between bullet 22-2 and the filter cylinder shell 1 for fused materials and enter the passage of feed cavity, divide the smaller diameter end of fluid 22 to stretch out screen tube 21, screen tube 21 removably connects near an end and plug 6 screw threads of the minor diameter of guiding cone 22-1, have the passage that flows out for fused materials between the smaller diameter end of guiding cone 22-1 and the plug 6, have the perforate that communicates with demarcation strip 3 top discharge ends 32 on the plug 6.
The present invention has changed traditional filtration device structure, and real realization need not shut down the purpose of draping, and the screen tube 21 of employing is a core structure, and filter area is big.Need regulate import reversal valve 4 and outlet reversal valve 5 during use simultaneously, make a filter 2 in running order, another is in halted state, and can change this moment to the filter 2 that is in halted state, screen pack cleaned for future use again.
Shown in Figure 1, the filter 2 of below is in running order, and the filter 2 of top is in halted state.Fused materials enters from the charging aperture on the filter cylinder shell 1, the feed cavity of filter 2 below entering under the effect of import reversal valve 4, fused materials filters by screen pack and enters screen tube 21 inner chambers, impurity is filtered net and removes, fused materials enters outlet reversal valve 5 backs through the guiding of dividing fluid 22 and flows out from discharging opening, finishes the filter operation of material.
Shown in Figure 2, after operation simultaneously made import reversal valve and outlet reversal valve rotate 90 °, the filter 2 of top was in running order, and the filter 2 of below is in halted state.Fused materials enters from the charging aperture on the filter cylinder shell 1, the feed cavity of filter 2 above entering under the effect of import reversal valve 4, fused materials filters by screen pack and enters screen tube 21 inner chambers, impurity is filtered net and removes, fused materials enters outlet reversal valve 5 backs through the guiding of dividing fluid 22 and flows out from discharging opening, finishes the filter operation of material.
With above-mentioned foundation desirable embodiment of the present invention is enlightenment, and by above-mentioned description, the related work personnel can carry out various change and modification fully in the scope that does not depart from this invention technological thought.The technical scope of this invention is not limited to the content on the specification, must determine its technical scope according to the claim scope.
Claims (4)
1. an extruder is with not shutting down long-acting filter; comprise filter cylinder shell (1) and be arranged on filter (2) in filter cylinder shell (1) inner chamber; the filter cylinder shell has charging aperture and discharging opening on (1); described filter (2) comprises screen tube (21) and the coaxial branch fluid (22) that is arranged in the screen tube (21); have several through holes on the cylindrical shell of screen tube (21); screen tube (21) skin is coated with screen pack; it is characterized in that: be arranged in parallel the standby each other filter (2) of two covers in described filter screen shell (1) inner chamber; has demarcation strip (3) between the two sets filtering device (2); form feed cavity between the inwall of filter screen shell (1) and demarcation strip (3) sidewall and the screen pack; form the discharging chamber between screen tube (21) inwall and the branch fluid (22); the two ends of demarcation strip (3) are respectively feed end (31) that communicates with feed cavity and the discharge end (32) that communicates with the discharging chamber; import reversal valve (4) is installed on the feed end (31); the import of import reversal valve (4) is communicated with charging aperture; outlet reversal valve (5) is installed on the discharge end (32); the outlet of outlet reversal valve (5) is communicated with discharging opening; one end of filter (2) is equipped with plug (6), and plug (6) detachably is installed in 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 are installed; pedestal is installed is installed on the filter cylinder shell (1), the external part of reversing valve core passes the installation pedestal and extend out to outside the filter cylinder shell (1).
3. extruder as claimed in claim 1 is with not shutting down long-acting filter; it is characterized in that: the branch fluid (22) of described filter (2) has a guiding cone (22-1); the great circle of guiding cone (22-1) is directly held with the installation of screen tube (21) inwall and is connected; the larger diameter end of guiding cone (22-1) also has a bullet (22-2) that is used for shutoff screen tube (21) end face; have between bullet (22-2) and the filter cylinder shell (1) for fused materials and enter the passage of feed cavity; divide the smaller diameter end of fluid (22) to stretch out screen tube (21); screen tube (21) is installed with plug (6) near an end of the minor diameter of guiding cone (22-1) and is connected; have the passage that flows out for fused materials between the smaller diameter end of guiding cone (22-1) and the plug (6), have the perforate that communicates with demarcation strip (3) top discharge end (32) on the plug (6).
4. extruder as claimed in claim 3 is with not shutting down long-acting filter; it is characterized in that: the great circle of described guiding cone (22-1) is directly held with screen tube (21) inner thread and is removably connected, and screen tube (21) removably connects near an 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 true CN102241125A (en) | 2011-11-16 |
| CN102241125B CN102241125B (en) | 2014-06-04 |
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Family Applications (1)
| 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 |
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| CN (1) | CN102241125B (en) |
Cited By (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 |
| CN104494106A (en) * | 2014-12-31 | 2015-04-08 | 常州市永明机械制造有限公司 | Dual-filter-element long-acting net-changing safety protection device on extruder |
| CN104760152A (en) * | 2015-03-12 | 2015-07-08 | 广东仕诚塑料机械有限公司 | Screen sieve filter |
| 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 |
| CN111575821A (en) * | 2020-05-25 | 2020-08-25 | 张志成 | 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 |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3308941B1 (en) | 2016-10-13 | 2021-07-28 | Starlinger & Co. Gesellschaft m.b.H. | Apparatus and process for filtering polymer melts |
Citations (6)
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| JPH08230017A (en) * | 1995-05-02 | 1996-09-10 | Shiro Tsuchiya | Screen changer for plastic extrusion molding |
| 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 |
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2011
- 2011-06-30 CN CN201110186190.7A patent/CN102241125B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08230017A (en) * | 1995-05-02 | 1996-09-10 | Shiro Tsuchiya | Screen changer for plastic extrusion molding |
| 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 |
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Cited By (9)
| 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 |
| CN104494106A (en) * | 2014-12-31 | 2015-04-08 | 常州市永明机械制造有限公司 | Dual-filter-element long-acting net-changing safety protection device on extruder |
| CN104760152A (en) * | 2015-03-12 | 2015-07-08 | 广东仕诚塑料机械有限公司 | Screen sieve filter |
| 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 |
| CN108043080B (en) * | 2017-12-21 | 2024-07-19 | 苏州星火丰盈环保包装有限公司 | Filter device for film blowing machine |
| 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 |
| CN111575821A (en) * | 2020-05-25 | 2020-08-25 | 张志成 | Non-woven fabric recovery processing device |
| 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 |
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| CN102241125B (en) | 2014-06-04 |
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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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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140604 Termination date: 20180630 |