CN107471596B - Screen changing method of multi-column type non-stop screen changing device - Google Patents
Screen changing method of multi-column type non-stop screen changing device Download PDFInfo
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- CN107471596B CN107471596B CN201710711024.1A CN201710711024A CN107471596B CN 107471596 B CN107471596 B CN 107471596B CN 201710711024 A CN201710711024 A CN 201710711024A CN 107471596 B CN107471596 B CN 107471596B
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- column
- screen
- filter screen
- balance
- material cavity
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/50—Details of extruders
- B29C48/69—Filters or screens for the moulding material
- B29C48/691—Arrangements for replacing filters, e.g. with two parallel filters for alternate use
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The application discloses a screen changing method of a multi-column type non-stop screen changing device, which comprises a box body, a feed inlet and a discharge outlet which are respectively arranged at two sides of the box body, wherein the feed inlet is provided with at least two feed pipes, the discharge outlet is provided with a discharge pipe corresponding to the feed pipes, a material cavity communicated with the feed pipes and the discharge pipe is arranged in the box body, the screen changing method further comprises a first balance column, a filter screen column and a second plate Heng Zhu which are sequentially arranged through the material cavity, through holes which are adapted to the shape and the size of the material cavity are respectively formed in the first balance column, the filter screen column and the second balance column, a filter screen component is arranged at the through holes on the filter screen column and perpendicular to the material cavity, and when one filter screen is used for screen changing, other filter screens work normally, so that non-stop screen changing is ensured, and the working efficiency is improved; and the first balance column, the filter screen column and the second balance Heng Zhu are arranged, so that the pressure fluctuation in the material cavity can be reduced to the greatest extent through the combined action of the first balance column, the filter screen column and the second balance Heng Zhu, and the production of defective products or waste products in the screen replacement process is prevented.
Description
Technical Field
The application relates to a screen changing device on an extruder, in particular to a screen changing method of a multi-column type non-stop screen changing device.
Background
In the extrusion process of plastic or rubber products, the plastic or rubber melt is plasticized and heated for a long time, and separate residues, plus impurities in raw materials, are generated in the melt, and once the impurities enter the extruder head, flow channels are blocked, so that the plastic or rubber products have defects and even cannot be produced normally; in order to filter sundries, a filter screen is usually arranged in the extruder head, and the filter screen needs to be cleaned and replaced at regular time; in certain sensitive production processes, the quality of products depends on an operation state which is kept constant for a long time, and subtle changes of pressure can possibly cause inferior products or waste products.
Disclosure of Invention
The present application aims to solve at least one of the above-mentioned technical problems in the related art to some extent. Therefore, the application provides a screen changing method of the multi-column type non-stop screen changing device, which is simple in screen changing process and small in pressure fluctuation.
The technical scheme adopted for solving the technical problems is as follows:
the screen replacing method of the multi-column type non-stop screen replacing device comprises a box body, a feed inlet and a discharge outlet which are respectively arranged at two sides of the box body, wherein the feed inlet is provided with at least two feed pipes, the discharge outlet is provided with a discharge pipe corresponding to the feed pipes, a material cavity communicated with the feed pipes and the discharge pipe is arranged in the box body, the screen replacing method further comprises a first balance column, a filter screen column and a second plate Heng Zhu which sequentially pass through the material cavity, through holes which are matched with the shape and the size of the material cavity are respectively formed in the first balance column, the filter screen column and the second balance column, the filter screen component is arranged at the through holes on the filter screen column and perpendicular to the material cavity, the first balance column, the filter screen column and the second plate Heng Zhu are respectively connected with a driving device, an exhaust channel communicated with the material cavity and the outside is further arranged in the box body, and an adjusting valve is arranged at the outlet of the exhaust channel. When the screen is required to be replaced, the driving device is controlled to sequentially drive the second balance column and the first balance column to gradually push out so as to enable materials in the box body to slowly seep out, and then the driving device is controlled to push out the filter screen column so as to enable the filter screen assembly to be exposed to the outside for replacement; after the net replacement is completed, the driving device is controlled to pull back the filter screen column, the regulating valve is opened, so that the material cavity is filled with materials, the regulating valve is closed until no bubbles exist at the outlet, and the driving device is controlled to gradually pull back the first balance column and the second balance column.
As a further improvement of the technical scheme, the connection port of the exhaust channel and the material cavity is arranged at the top of the material cavity.
Further, a pressure sensor is arranged in the material cavity and is connected with a control device outside the box body.
Further, the control device also comprises an alarm connected with the control device.
Further, the driving device is a stepping motor or a servo motor.
Further, the first balance column, the filter screen column and the second plate Heng Zhu are cylindrical.
The beneficial effects of the application are as follows: according to the application, by arranging a plurality of groups of feed pipes, feed cavities and discharge pipes which are communicated, when one filter screen is used for screen replacement, other filter screens work normally, so that the screen replacement without stopping is ensured, and the working efficiency is improved; and the first balance column, the filter screen column and the second balance Heng Zhu are arranged, so that the pressure fluctuation in the material cavity can be reduced to the greatest extent through the combined action of the first balance column, the filter screen column and the second balance Heng Zhu, the production of defective products or waste products in the screen replacement process is prevented, and the stability of the product quality is improved.
Drawings
The application will be further described with reference to the drawings and examples.
FIG. 1 is a schematic perspective view of the present application;
fig. 2 is a schematic perspective view of another angle of the present application showing the filter column in an extended state.
Detailed Description
Referring to fig. 1 to 2, the multi-column non-stop screen changing device of the application comprises a box body 1, and a feed inlet 2 and a discharge outlet 3 which are respectively arranged at two sides of the box body 1, wherein the feed inlet 2 is provided with at least two feed pipes 21, the discharge outlet 3 is provided with a discharge pipe 31 corresponding to the feed pipes 21, a feed cavity communicated with the feed pipes 21 and the discharge pipe 31 is arranged in the box body, and the multi-column non-stop screen changing device also comprises a first balance column 4, a filter screen column 5 and a second balance column Heng Zhu 6 which sequentially pass through the feed cavity, wherein through holes which are adapted to the shape and the size of the feed cavity are respectively formed in the first balance column 4, the filter screen column 5 and the second balance column 6, a filter screen component is arranged at the positions of the through holes on the filter screen column and are respectively connected with a driving device, and the filter screen components are respectively arranged at the positions of the through holes of the first balance column 4, the filter screen column 5 and the second balance Heng Zhu; and the first balance column 4, the filter screen column 5 and the second balance Heng Zhu are arranged, so that the pressure fluctuation in the material cavity can be reduced to the greatest extent through the combined action of the first balance column 4, the filter screen column 5 and the second balance Heng Zhu, the production of defective products or waste products in the screen replacement process is prevented, and the stability of the product quality is improved.
Preferably, an exhaust channel for communicating the material cavity with the outside is further arranged in the box body 1, and a regulating valve is arranged at the outlet of the exhaust channel, so that the exhaust in the material cavity can be further carried out, and the exhaust is controlled by the regulating valve.
Preferably, the connection port of the exhaust channel and the material cavity is arranged at the top of the material cavity, and exhaust is carried out from the top, so that the influence on the materials which are not completely discharged in the material cavity and the product quality can be avoided.
Preferably, the pressure sensor is arranged in the material cavity and connected with a control device outside the box body, and the pressure sensor is used for detecting the pressure inside the material cavity, so that the pressure fluctuation condition is ensured, and the timely control and adjustment are facilitated.
Preferably, the device also comprises an alarm connected with the control device, and when the screen changing operation is carried out, the pressure in the material cavity is too small, the device can alarm to remind operators.
Preferably, the driving device is a stepping motor or a servo motor, and the stepping motor or the servo motor is adopted to enable the first balance column 4, the filter screen column 5 and the second plate Heng Zhu 6 to move gradually, so that the pressure fluctuation in the material cavity is ensured to be smaller.
Preferably, the first balancing column 4, the filter screen column 5 and the second plate Heng Zhu are cylindrical, so that the processing is simple and the use is convenient.
In the working process, materials enter the box body 1 through the feeding pipe 21, sequentially pass through the through hole of the first balance column 4, the filter screen component of the filter screen column 5 and the through hole of the second plate Heng Zhu, and finally are discharged through the discharging pipe 31, when the net needs to be replaced, the driving device sequentially drives the second plate Heng Zhu and the first balance column 4 to gradually push out, in the process, the materials in the box body 1 can slowly permeate out, then the filter screen column 5 is pushed out, the filter screen component is exposed to the outside and can be replaced, after net replacement is completed, the filter screen column 5 is pulled back, at the moment, the regulating valve on the exhaust channel can be opened, the materials can be filled in the material cavity, when no air bubble exists in the exhaust port, the regulating valve is closed, and the driving device sequentially pulls back the first balance column 4 and the second plate Heng Zhu 6, and net replacement is completed.
While the above detailed construction and dimensional data have been provided for the purpose of illustrating the preferred embodiments of the present application, the present application is not limited to the embodiments, and various equivalent modifications and substitutions can be made by one skilled in the art without departing from the spirit of the present application, and are intended to be included in the scope of the present application as defined in the appended claims.
Claims (4)
1. The screen replacing method of the multi-column type non-stop screen replacing device comprises a box body, and a feed inlet and a discharge outlet which are respectively arranged at two sides of the box body, and is characterized in that: the utility model provides a screen replacement method of a non-stop screen replacement device, includes the following steps:
when the screen is required to be replaced, the driving device is controlled to sequentially drive the second balance column and the first balance column to gradually push out so as to enable materials in the box body to slowly seep out, and then the driving device is controlled to push out the filter screen column so as to enable the filter screen assembly to be exposed to the outside for replacement;
after the net replacement is completed, the driving device is controlled to pull back the filter screen column, the regulating valve is opened, so that the material cavity is filled with materials, the regulating valve is closed until no bubbles exist at the outlet, and the driving device is controlled to gradually pull back the first balance column and the second balance column.
2. The screen changing method of the multi-column type non-stop screen changing device according to claim 1, wherein the screen changing method comprises the following steps: the connection port of the exhaust channel and the material cavity is arranged at the top of the material cavity.
3. The screen changing method of the multi-column type non-stop screen changing device according to claim 1, wherein the screen changing method comprises the following steps: the material cavity is internally provided with a pressure sensor, and the pressure sensor is connected with a control device outside the box body.
4. A screen changing method of a multi-column non-stop screen changing device according to claim 3, wherein: the system also comprises an alarm connected with the control device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710711024.1A CN107471596B (en) | 2017-08-18 | 2017-08-18 | Screen changing method of multi-column type non-stop screen changing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710711024.1A CN107471596B (en) | 2017-08-18 | 2017-08-18 | Screen changing method of multi-column type non-stop screen changing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107471596A CN107471596A (en) | 2017-12-15 |
| CN107471596B true CN107471596B (en) | 2023-09-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710711024.1A Active CN107471596B (en) | 2017-08-18 | 2017-08-18 | Screen changing method of multi-column type non-stop screen changing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107471596B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1168063A (en) * | 1967-02-06 | 1969-10-22 | Luigi Marianelli | Filter for Extruders for Plastics Material |
| DE4408803C1 (en) * | 1994-03-15 | 1995-09-14 | Wil Man Polymer Filtration Gmb | Polymer split fluid flow filter control unit |
| DE102005037268A1 (en) * | 2004-08-19 | 2006-02-23 | Maag Pump Systems Textron Gmbh | Polymer melt filtering unit for extrusion plant has sensor on one or both sides of filter unit to record fluid parameters which are compared with set values and used to increase opening of throttle in the fluid flow path |
| CN200995471Y (en) * | 2006-12-31 | 2007-12-26 | 刘文韬 | Device for replacing filter of extruder |
| CN102463667A (en) * | 2010-11-19 | 2012-05-23 | 广东达诚机械有限公司 | Hydraulic two-column exhaust type net changing device |
| CN104203364A (en) * | 2012-03-30 | 2014-12-10 | 马格泵系统股份有限公司 | Device for filtering a fluid |
| CN207190234U (en) * | 2017-08-18 | 2018-04-06 | 江门市蓬江区盈通塑胶制品有限公司 | Polystyle does not shut down net exchanging device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ITUA20161836A1 (en) * | 2016-03-21 | 2017-09-21 | C M Produzione S R L | FILTRATION DEVICE FOR EXTRUSION-FREE EXTRUSION PROCESSES. |
-
2017
- 2017-08-18 CN CN201710711024.1A patent/CN107471596B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1168063A (en) * | 1967-02-06 | 1969-10-22 | Luigi Marianelli | Filter for Extruders for Plastics Material |
| DE4408803C1 (en) * | 1994-03-15 | 1995-09-14 | Wil Man Polymer Filtration Gmb | Polymer split fluid flow filter control unit |
| DE102005037268A1 (en) * | 2004-08-19 | 2006-02-23 | Maag Pump Systems Textron Gmbh | Polymer melt filtering unit for extrusion plant has sensor on one or both sides of filter unit to record fluid parameters which are compared with set values and used to increase opening of throttle in the fluid flow path |
| CN200995471Y (en) * | 2006-12-31 | 2007-12-26 | 刘文韬 | Device for replacing filter of extruder |
| CN102463667A (en) * | 2010-11-19 | 2012-05-23 | 广东达诚机械有限公司 | Hydraulic two-column exhaust type net changing device |
| CN104203364A (en) * | 2012-03-30 | 2014-12-10 | 马格泵系统股份有限公司 | Device for filtering a fluid |
| CN207190234U (en) * | 2017-08-18 | 2018-04-06 | 江门市蓬江区盈通塑胶制品有限公司 | Polystyle does not shut down net exchanging device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107471596A (en) | 2017-12-15 |
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| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information | ||
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Address after: 529000 Duruan Town North Ring Road Double Floor Industrial Zone, Pengjiang District, Jiangmen City, Guangdong Province Applicant after: GUANGDONG YINGTONG NEW MATERIAL Co.,Ltd. Address before: 529000 No. 70, North Third Road, Duruan Town, Pengjiang District, Jiangmen City, Guangdong Province Applicant before: JIANGMEN CITY PENGJIANG DISTRICT YINGTONG PLASTIC PRODUCTS CO.,LTD. |
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| CB02 | Change of applicant information |
Address after: No. 23 Zhongying Road, Duruan Town, Pengjiang District, Jiangmen City, Guangdong Province, 529000 Applicant after: GUANGDONG YINGTONG NEW MATERIAL Co.,Ltd. Address before: 529000 Duruan Town North Ring Road Double Floor Industrial Zone, Pengjiang District, Jiangmen City, Guangdong Province Applicant before: GUANGDONG YINGTONG NEW MATERIAL Co.,Ltd. |
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