CN1772460A - Column type back wash net changing device - Google Patents
Column type back wash net changing device Download PDFInfo
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- CN1772460A CN1772460A CN 200510106265 CN200510106265A CN1772460A CN 1772460 A CN1772460 A CN 1772460A CN 200510106265 CN200510106265 CN 200510106265 CN 200510106265 A CN200510106265 A CN 200510106265A CN 1772460 A CN1772460 A CN 1772460A
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Abstract
The column type back wash net changing device consists of mold body, filtering net upright assembly, upper and lower mold body sealing cover plate assembly and hydraulic assembly. The mold body has flushing valve, the filtering net upright assembly is set inside the through mold cavity via the upper and lower mold body sealing cover plate assembly, and the hydraulic assembly is connected to the filtering net upright assembly and the mold body. Through regulating the position of the upright in the mold body and opening the flushing valve, the deposited matter on the filtering net may be flushed out from the valve port, without need of replacing the filtering net.
Description
Technical field
The present invention relates to a kind of extrusion machine fused mass net-changing device, refer in particular to a kind of column type back wash net changing device.
Background technology
Net-changing device is a kind of corollary equipment of producing plastic plate, film extruder that is exclusively used in, and is used for the melt that extruder flows out is filtered.Existing net-changing device is hydraulic control, form by cavity, screen pack, hydraulic package and seal, after net-changing device work a period of time, need to change filter screen, by the hydraulic cylinder outputting power, make sieve plate move up and down the location, two filter mesh are realized the replacing of online screen pack, thereby can clean changing the screen pack that comes out.Such structure needs artificially screen pack to be cleaned inconvenient operation.
Summary of the invention
The object of the present invention is to provide a kind of column type back wash net changing device of extrusion machine fused mass, its structure is for novel pillar and have backwashing function, can work long hours and need not change filter screen.
For achieving the above object, the invention provides following technical scheme:
A kind of column type back wash net changing device, form by die body, filter screen columns assemblies, die body upper-lower seal cover plate assembly and hydraulic package, die body is provided with flushing valve, the filter screen columns assemblies is arranged on by die body upper-lower seal cover plate assembly in the die cavity of die body perforation, and hydraulic package connects filter screen columns assemblies and die body.
Above-mentioned filter screen columns assemblies is provided with by two fluid passages on the column body, and net-filter assembly is installed in the fluid passage separately, and wherein net-filter assembly is made up of inboard screen pack, outside screen pack and filter screen limiting plate; Be provided with sprue and secondary channels in the above-mentioned fluid passage.
Above-mentioned die body is provided with charging runner and the discharging runner corresponding with the column fluid passage.
Above-mentioned flushing valve is a cored screw, and the die cavity of its passage and die body connects.
Adopt above-mentioned net-changing device structure, under the normal operating conditions, two fluid passages on the column are corresponding to the input and output material runner on the die body.Die body all has the seal cover board assembly up and down, can guarantee effective sealing, anti-leak-stopping material.Flushing valve is installed in the corresponding installing hole of die body, and flushing valve is a hollow screw, and its passage and die body die cavity connect.Hydraulic package cooperates extra hydraulic control system in order to the displacement of control column in die body, is that electronic ruler is installed on hydraulic cylinder, is associated with the control module of supporting hydraulic control system, realizes the accurate location that column moves, to realize washing capacity.By adjusting the position of column in die body, and open flushing valve and the foul that deposits in the filter screen can be developed from the flushing valve doorway, do not clear up and need not change filter screen.
Description of drawings
Fig. 1, structural representation of the present invention;
Fig. 2, three-dimensional exploded view of the present invention;
Fig. 3, phantom of the present invention;
A indication partial enlarged drawing among Fig. 4, Fig. 3 of the present invention;
Structural representation under Fig. 5, the normal operating conditions of the present invention;
The structural representation of Fig. 6, a left side of the present invention (descending) flushing;
The structural representation of Fig. 7, the right side of the present invention (descending) flushing;
Structural representation under Fig. 8, the shutdown draping state of the present invention.
The specific embodiment
Shown in Fig. 1,2,3,4, the invention provides a kind of column type back wash net changing device, form by die body 1, filter screen columns assemblies 2, die body upper-lower seal cover plate assembly 3 and hydraulic package 4; Wherein die body 1 is an integral type, on have the charging runner 11 and the discharging runner 12 of perforation, front and back are provided with the die body die cavity 13 of perforation, at die body 1 feed side two flushing valves 14 are arranged; Filter screen columns assemblies 2 is provided with on column body 21 by two fluid passages 22, be provided with sprue 221 and secondary channels 222 in the fluid passage 22, net-filter assembly is installed in the fluid passage 22 separately, and wherein net-filter assembly is made up of inboard screen pack 23, outside screen pack 24 and filter screen limiting plate 25; Filter screen columns assemblies 2 is arranged in the die cavity 13 of die body 1 perforation by die body upper-lower seal cover plate assembly 31,32, can guarantee effective sealing, anti-leak-stopping material.Hydraulic package 4 connects filter screen columns assemblies 2 and die body 1.Above-mentioned flushing valve 14 is a cored screw, and the die cavity 13 of its passage and die body connects.
As shown in Figure 5, in normal operation, two fluid passages 22 in the column body 2 are corresponding with up and down charging runner 11 and discharging runner 12 on the die body, work simultaneously in two fluid passages, and this moment, flushing valve 14 was blocked by column 2.
As shown in Figure 6, left net-filter assembly is washed, cooperate the extra left dislocation of hydraulic control system control column in die body 1 by hydraulic package, at this moment, the left fluid passage 22 of column body 2 is connected with left flushing valve 12, and the sprue 221 of left fluid passage 22 is connected with discharging runner 12 by die body 1 obstruction, secondary channels 222.In extruder work; have only 22 work of right fluid passage this moment; under the effect of pressure; segment fluid flow is back to the secondary channels 222 of left fluid passage 22 when entering into the discharging runner; and then flow in the left fluid passage 22 net-filter assembly is carried out backwash; from left flushing valve, flow out again, thereby realize under the stopped status not backwash left net-filter assembly.
As shown in Figure 7, right net-filter assembly is washed, cooperate the extra right displacement of hydraulic control system control column in die body 1 by hydraulic package, at this moment, the right fluid passage 22 of column body 2 is connected with right flushing valve 14, and the sprue 221 of right fluid passage 22 is connected with discharging runner 12 by die body 1 obstruction, secondary channels 222.In extruder work; have only 22 work of left fluid passage this moment; under the effect of pressure; segment fluid flow is back to the secondary channels 222 of right fluid passage 22 when entering into the discharging runner; and then flow in the right fluid passage 22 net-filter assembly is washed; from right flushing valve, flow out again, thereby realize under the stopped status not backwash right net-filter assembly.
As shown in Figure 8; for under machine mechanical wear, need to shut down the state of draping at extruder; cooperate the extra left dislocation of hydraulic control system control column in die body 1 by hydraulic package; this moment, the fluid passage of column exposed fully, can carry out artificially net-filter assembly is carried out disassembly, cleaning or replacing again.
Claims (4)
1, a kind of column type back wash net changing device, it is characterized in that: form by die body, filter screen columns assemblies, die body upper-lower seal cover plate assembly and hydraulic package, die body is provided with flushing valve, the filter screen columns assemblies is arranged on by die body upper-lower seal cover plate assembly in the die cavity of die body perforation, and hydraulic package connects filter screen columns assemblies and die body.
2, a kind of column type back wash net changing device as claimed in claim 1, it is characterized in that: above-mentioned filter screen columns assemblies, on the column body, be provided with by two fluid passages, net-filter assembly is installed in the fluid passage separately, and wherein net-filter assembly is made up of inboard screen pack, outside screen pack and filter screen limiting plate; Be provided with sprue and secondary channels in the above-mentioned fluid passage.
3, a kind of column type back wash net changing device as claimed in claim 1 is characterized in that: above-mentioned die body is provided with charging runner and the discharging runner corresponding with the column fluid passage.
4, a kind of column type back wash net changing device as claimed in claim 1 is characterized in that: above-mentioned flushing valve is a cored screw, and the die cavity of its passage and die body connects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005101062650A CN100528534C (en) | 2005-08-02 | 2005-09-24 | Column type back wash net changing device |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200520013734.X | 2005-08-02 | ||
| CN200520013734 | 2005-08-02 | ||
| CNB2005101062650A CN100528534C (en) | 2005-08-02 | 2005-09-24 | Column type back wash net changing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1772460A true CN1772460A (en) | 2006-05-17 |
| CN100528534C CN100528534C (en) | 2009-08-19 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005101062650A Active CN100528534C (en) | 2005-08-02 | 2005-09-24 | Column type back wash net changing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100528534C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105082511A (en) * | 2015-07-21 | 2015-11-25 | 浙江绿宇环保有限公司 | Back-flushing type screen washing and changing device |
| CN107443710A (en) * | 2016-05-30 | 2017-12-08 | 台州市黄岩莱恩模业有限公司 | A kind of back-flushing filtering device and its back-flushing method for plastic extruder |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2103425U (en) * | 1991-09-18 | 1992-05-06 | 中国科学技术大学 | Hydraulic automatic screen-changing device without halt |
| CN2592366Y (en) * | 2003-01-07 | 2003-12-17 | 潘应亮 | Non-stop filter net changing apparatus for four-channel columntype extruder |
| CN2792748Y (en) * | 2005-08-02 | 2006-07-05 | 梁斌 | Columnar back-flushing net replacing device |
-
2005
- 2005-09-24 CN CNB2005101062650A patent/CN100528534C/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105082511A (en) * | 2015-07-21 | 2015-11-25 | 浙江绿宇环保有限公司 | Back-flushing type screen washing and changing device |
| CN107443710A (en) * | 2016-05-30 | 2017-12-08 | 台州市黄岩莱恩模业有限公司 | A kind of back-flushing filtering device and its back-flushing method for plastic extruder |
| CN107443710B (en) * | 2016-05-30 | 2019-06-14 | 台州市黄岩莱恩模业有限公司 | A kind of back-flushing filtering device and its back-flushing method for plastic extruder |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100528534C (en) | 2009-08-19 |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: ZHEJIANG JINGCHENG MOULD AND MACHINERY CO., LTD. Free format text: FORMER OWNER: LIANG BIN Effective date: 20100920 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 318020 ZHEJIANG JINGCHENG MOULD CO., LTD., XICHENG MOULD CITY, HUANGYAN DISTRICT, TAIZHOU CITY, ZHEJIANG PROVINCE TO: 318020 ZHEJIANG JINGCHENG MOULD AND MACHINERY CO., LTD., XICHENG MOULD CITY, HUANGYAN DISTRICT, TAIZHOU CITY, ZHEJIANG PROVINCE |
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| TR01 | Transfer of patent right |
Effective date of registration: 20100920 Address after: 318020 Taizhou Xicheng mould City, Huangyan, Zhejiang, Zhejiang Jingcheng mould machinery Co., Ltd. Patentee after: Zhejiang Jingcheng Mould Machinery Co., Ltd. Address before: 318020 Taizhou Jingcheng mould City, Huangyan District, Zhejiang City, Zhejiang Province Patentee before: Liang Bin |