CN102320121B - Nonstop self-cleaning long-acting filter for extruding machine - Google Patents
Nonstop self-cleaning long-acting filter for extruding machine Download PDFInfo
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- CN102320121B CN102320121B CN201110186205.XA CN201110186205A CN102320121B CN 102320121 B CN102320121 B CN 102320121B CN 201110186205 A CN201110186205 A CN 201110186205A CN 102320121 B CN102320121 B CN 102320121B
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Abstract
The invention relates to a nonstop self-cleaning long-acting for an extruding machine, which comprises a filtering cartridge casing and a filtering device, wherein the filtering cartridge casing is provided with a feed opening and a discharge hole; two sets of standby filtering devices which can work in turn are arranged in an inner cavity of a filter screen casing in parallel; an outlet reversing valve is arranged at the discharge end; an outlet of the outlet reversing valve is communicated with the discharge hole; a plug is arranged at one end of the filtering device and is detachably arranged in the filtering cartridge casing; an inlet reversing valve and the outlet reversing valve respectively comprise a reversing valve core and a mounting base body; the mounting base bodies are arranged on the filtering cartridge casing; the extending end of each reversing valve core penetrates through each mounting base body and extends out of the filtering cartridge casing; a distributing opening is arranged on the outlet reversing valve; discharge openings are arranged on cavities of the filtering cartridge casing, which correspond to the two sets of filtering devices; and plugs are correspondingly arranged on the discharge openings. According to the nonstop self-cleaning long-acting disclosed by the invention, two parallel filtering devices are adopted to realize the nonstop net replacing operation, realize the function of automatic cleaning and meet the requirement for continuous production.
Description
Technical field
The present invention relates to the filter technology field of plastics machinery, especially a kind of extruder is not shut down long-acting filter with self-cleaning.
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 the self-cleaning of a kind of extruder and do not shut down long-acting filter; adopt two filters in parallel to realize and do not shut down draping operation, can also realize self-cleaning function, meet continuous production requirement.
The technical solution adopted for the present invention to solve the technical problems is: a kind of extruder is not shut down long-acting filter with self-cleaning, 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 and overlap the filter that spare wheel changes jobs each other, between two sets filtering device, there is 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, described import reversal valve and outlet reversal valve include reversing valve core and pedestal are installed, pedestal is installed to be arranged on filter cylinder shell, the external part of reversing valve core extend out to outside filter cylinder shell through pedestal is installed, on described outlet reversal valve, offer a sub-material mouth, on the cavity of the corresponding two sets filtering device of filter cylinder shell, offer discharge port, the corresponding stopper removably connecting that is provided with on discharge port.Two sets filtering device each other for subsequent use wheel changes jobs, and in the time exporting reversal valve and wherein a sets filtering device is communicated with, sub-material mouth is communicated with another set of filter, thereby realizes the object of back flush, and impurity is followed fused materials and flowed out from discharge port.
Further, offer two mutually perpendicular outlets on described outlet reversal valve, described discharging opening is positioned on the bisector of two outlets.This structure realizes the control to back flush, and whether back flush is realized in the position that exports reversal valve by control, saves material.
Destroy the structure of screen pack when preventing back flush, improve intensity, described screen tube skin is coated with at least two-layer screen pack.
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 is not shut down long-acting filter with self-cleaning and is adopted 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, outlet reversal valve offers discharging opening, can realize back flush, do not need dismounting can realize filter gauze cleaning, 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 that one of them duty in long-acting filter most preferred embodiment is not shut down in extruder of the present invention self-cleaning;
Fig. 2 is the structural representation that another duty in long-acting filter most preferred embodiment is not shut down in extruder of the present invention self-cleaning;
Fig. 3 is the structural representation that another duty in long-acting filter most preferred embodiment is not shut down in extruder of the present invention self-cleaning;
Fig. 4 is the structural representation that another duty in long-acting filter most preferred embodiment is not shut down in extruder of the present invention self-cleaning.
In figure: 1. filter cylinder shell, 11. discharge ports, 12. stoppers, 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, 51. sub-material mouth, 6. plugs.
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, extruder of the present invention is not shut down the most preferred embodiment of long-acting filter with self-cleaning, 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 at least two-layer screen pack, in filter screen shell 1 inner chamber, be arranged in parallel two and overlap the filter 2 that spare wheel changes jobs 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 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, import reversal valve 4 and outlet reversal valve 5 include reversing valve core and pedestal are installed, pedestal is installed to be arranged on filter cylinder shell 1, the external part of reversing valve core extend out to outside filter cylinder shell 1 through pedestal is installed, on outlet reversal valve 5, offer a sub-material mouth 51, on the cavity of the corresponding two sets filtering device 2 of filter cylinder shell 1, offer discharge port 11, the corresponding stopper 12 removably connecting that is provided with on discharge port 11, for making stopper 12 and discharge port 11 easy accessibility, select the form being threaded.
On outlet reversal valve 5, offer two mutually perpendicular outlets, discharging opening 51 is positioned on the bisector of two outlets.
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 one of them 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.Sub-material mouth 51 is not communicated with the filter 2 of top, 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, the filter 2 of below is in running order, and the filter 2 of top is in halted state.Sub-material mouth 51 is communicated with the filter 2 of top, 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, complete the filter operation of material, partial melting material enters the filter 2 of top by sub-material mouth 51 simultaneously, realize the object of back flush screen pack, when rinsing the stopper 12 of turning on the filter 2 of top after certain hour, impure material is discharged from.
Shown in Fig. 3, operation simultaneously makes import reversal valve 4 and outlet reversal valve 5, makes the filter 2 of top in running order, and the filter 2 of below is in halted state.Sub-material mouth 51 is not communicated with the filter 2 of below, 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, and 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, the filter 2 of removable below, carries out draping operation simultaneously.
Shown in Fig. 4, the filter 2 of top is in running order, and the filter 2 of below is in halted state.Sub-material mouth 51 is communicated with the filter 2 of below, 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, complete the filter operation of material, partial melting material enters the filter 2 of below by sub-material mouth 51 simultaneously, realize the object of back flush screen pack, when rinsing the stopper 12 of turning on the filter 2 of below after certain hour, impure material is discharged from.
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 (5)
1. an extruder is not shut down long-acting filter with self-cleaning, 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 and overlap the filter (2) that spare wheel changes jobs 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), described import reversal valve (4) and outlet reversal valve (5) include reversing valve core and pedestal are installed, pedestal is installed to be arranged on filter cylinder shell (1), the external part of reversing valve core extend out to outside filter cylinder shell (1) through pedestal is installed, on described outlet reversal valve (5), offer a sub-material mouth (51), on the cavity of the corresponding two sets filtering device of filter cylinder shell (1) (2), offer discharge port (11), the upper correspondence of discharge port (11) is provided with the stopper (12) removably connecting.
2. extruder as claimed in claim 1 is not shut down long-acting filter with self-cleaning; it is characterized in that: on described outlet reversal valve (5), offer two mutually perpendicular outlets, described sub-material mouth (51) is positioned on the bisector of two outlets.
3. extruder as claimed in claim 1 is not shut down long-acting filter with self-cleaning, it is characterized in that: described screen tube (21) skin is coated with at least two-layer screen pack.
4. extruder as claimed in claim 1 is not shut down long-acting filter with self-cleaning, 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).
5. extruder as claimed in claim 4 is not shut down long-acting filter with self-cleaning; 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 |
|---|---|---|---|
| CN201110186205.XA CN102320121B (en) | 2011-06-30 | 2011-06-30 | Nonstop self-cleaning long-acting filter for extruding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110186205.XA CN102320121B (en) | 2011-06-30 | 2011-06-30 | Nonstop self-cleaning long-acting filter for extruding machine |
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| Publication Number | Publication Date |
|---|---|
| CN102320121A CN102320121A (en) | 2012-01-18 |
| CN102320121B true CN102320121B (en) | 2014-06-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201110186205.XA Active CN102320121B (en) | 2011-06-30 | 2011-06-30 | Nonstop self-cleaning long-acting filter for extruding machine |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103112144B (en) * | 2013-03-04 | 2015-07-15 | 舟山市安格机械有限公司 | Long-lasting bilateral screen exchange device for production of drip irrigation belt |
| 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 |
| CN108582562A (en) * | 2017-12-28 | 2018-09-28 | 重庆市中塑新材料有限公司 | Centrifugal comminutor |
| CN108889058A (en) * | 2018-09-17 | 2018-11-27 | 陕西黑猫焦化股份有限公司 | Filter device for purifier back segment |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19509059C1 (en) * | 1995-03-14 | 1996-03-14 | Wil Man Polymer Filtration Gmb | Controlled sepn. into two-stream fluid system |
| EP0875357A1 (en) * | 1997-05-02 | 1998-11-04 | Kreyenborg Verwaltungen und Beteiligungen GmbH & Co. KG | Filter device for extruders and injection machines |
| CN2592366Y (en) * | 2003-01-07 | 2003-12-17 | 潘应亮 | Non-stop filter net changing apparatus for four-channel columntype extruder |
| CN201211704Y (en) * | 2008-06-02 | 2009-03-25 | 李新忠 | Filter head of plastic extrusion machine |
| CN202162992U (en) * | 2011-06-30 | 2012-03-14 | 常州市创信知识产权代理有限公司 | Long-acting self-cleaning filter without halting for extruder |
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 |
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2011
- 2011-06-30 CN CN201110186205.XA patent/CN102320121B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19509059C1 (en) * | 1995-03-14 | 1996-03-14 | Wil Man Polymer Filtration Gmb | Controlled sepn. into two-stream fluid system |
| EP0875357A1 (en) * | 1997-05-02 | 1998-11-04 | Kreyenborg Verwaltungen und Beteiligungen GmbH & Co. KG | Filter device for extruders and injection machines |
| CN2592366Y (en) * | 2003-01-07 | 2003-12-17 | 潘应亮 | Non-stop filter net changing apparatus for four-channel columntype extruder |
| CN201211704Y (en) * | 2008-06-02 | 2009-03-25 | 李新忠 | Filter head of plastic extrusion machine |
| CN202162992U (en) * | 2011-06-30 | 2012-03-14 | 常州市创信知识产权代理有限公司 | Long-acting self-cleaning filter without halting for extruder |
Non-Patent Citations (1)
| Title |
|---|
| JP特开平8-230017A 1996.09.10 |
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Effective date of registration: 20180504 Address after: 401322 Chongqing Banan district fish hole hundred section gourd mouth top factory Patentee after: CHONGQING JINLANG ELECTROMECHANICAL MANUFACTURING CO., LTD. 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. |