CN109849299B - Built-in split-flow insert type filter - Google Patents
Built-in split-flow insert type filter Download PDFInfo
- Publication number
- CN109849299B CN109849299B CN201811579947.7A CN201811579947A CN109849299B CN 109849299 B CN109849299 B CN 109849299B CN 201811579947 A CN201811579947 A CN 201811579947A CN 109849299 B CN109849299 B CN 109849299B
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- Prior art keywords
- feeding
- discharging
- template
- filter screen
- filter
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- 238000007599 discharging Methods 0.000 claims abstract description 108
- 239000004033 plastic Substances 0.000 claims abstract description 29
- 229920003023 plastic Polymers 0.000 claims abstract description 29
- 238000000034 method Methods 0.000 claims abstract description 12
- 238000007789 sealing Methods 0.000 claims description 16
- -1 polytetrafluoroethylene ring Polymers 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 2
- 238000001914 filtration Methods 0.000 description 11
- 230000000694 effects Effects 0.000 description 4
- 239000012530 fluid Substances 0.000 description 3
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Landscapes
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The invention provides a built-in split-flow insert type filter, which comprises a feeding template, a discharging template and a filter screen plate, wherein a feeding cavity and a discharging cavity are formed on the front side and the rear side of the filter screen plate, the feeding template, the discharging template and the filter screen plate are connected through screws, a feeding split body is arranged at the feeding end of the feeding template, a discharging split body is arranged at the discharging end of the discharging template, the feeding split body is positioned in the central area of the feeding cavity and divides feeding to form an annular feeding flow channel, and the volume of the feeding flow channel is gradually increased along the flowing direction of plastic or is kept in a state of constant stage in the increasing process; the discharging split flow body is positioned in the central area of the discharging cavity and divides the discharging cavity into annular discharging flow passages, and the volume of the discharging flow passages is gradually reduced along the flowing direction of the plastic or is kept in a state of unchanged stage in the reducing process. The invention can rapidly filter the molten plastic and avoid the situation that the heat-sensitive molten plastic is stored in the filter screen to be degraded and carbonized.
Description
Technical Field
The present invention relates to a fluid dispenser, and more particularly to a built-in split insert filter suitable for heat sensitive materials.
Background
In the extrusion process of a plastic injection molding machine, impurities in molten plastics need to be filtered through a filter, the existing filter usually directly enters the filter from a feeding end, flows out from a discharging end after passing through a filter screen, most of molten plastics are piled in the central area of the filter screen in the filtering process, the filter screen does not exert a complete filtering effect, and even so, the common plastics can meet the filtering function, but the thermosensitive plastics are easy to degrade in a heating state, the fluid speed in the feeding process is low, the molten plastics are piled up in front of the filter screen greatly, and degrade and carbonize after piling up, thereby influencing the performance and surface quality of the plastics, and meanwhile, the filter screen is very easy to be blocked, so that normal work cannot be completed.
Disclosure of Invention
Aiming at the problems, the invention aims to provide the built-in split-flow insert type filter, which is characterized in that split flows are arranged at the feeding end and the discharging end in the filter, and the pressure difference in the filter is established, so that the molten plastic can be uniformly and rapidly fed and discharged, the molten plastic is uniformly distributed on the whole filter screen to be rapidly filtered, and the situation that the thermosensitive molten plastic is accumulated on the filter screen to be degraded and carbonized is avoided.
The technical scheme of the invention is that the filter comprises a feeding template, a discharging template and a filter screen plate arranged between the feeding template and the discharging template, wherein a filter screen is arranged on the filter screen plate, a feeding cavity and a discharging cavity are formed on the front side and the rear side of the filter screen plate, the feeding template, the discharging template and the filter screen plate are detachably and fixedly connected, a sealing component is arranged at the joint of the feeding template, the feeding end of the feeding template is provided with a feeding split body, the discharging end of the discharging template is provided with a discharging split body, the feeding split body is positioned in the central area of the feeding cavity and divides feeding into annular feeding channels, and the volume of each feeding channel is gradually increased along the flowing direction of plastics or is kept in a state of constant stage in the increasing process; the discharging split flow body is positioned in the central area of the discharging cavity and divides the discharging cavity into annular discharging flow passages, and the volume of the discharging flow passages is gradually reduced along the flowing direction of the plastic or is kept in a state of unchanged stage in the reducing process.
Preferably, the feeding split flow body comprises a feeding connecting part at the outer side and a feeding guide part at the inner side, the feeding connecting part is fixed on the surface of the feeding template through screws, the feeding guide part stretches into the feeding cavity, and an annular feeding groove which is communicated with the feeding cavity and the outside and used for feeding is arranged between the feeding connecting part and the feeding guide part.
Preferably, the discharging split flow body comprises a discharging connecting part at the outer side and a discharging guide part at the inner side, the discharging connecting part is fixed on the surface of the discharging template through screws, the discharging guide part extends into the discharging cavity, and an annular discharging groove which is communicated with the discharging cavity and the outside and used for discharging is arranged between the discharging connecting part and the discharging guide part.
Preferably, the number of the annular feed grooves and the annular discharge grooves is at least two, and the annular feed grooves and the annular discharge grooves are uniformly distributed along the circumferential direction of each annular feed groove and the annular discharge grooves.
Preferably, the filter screen plate comprises a connecting plate on the outer side and a flashboard on the inner side, the connecting plate is connected with the feeding template and the discharging template, the filter screens are located on the flashboard, the number of the filter screens is 2, the filter screens are arranged along the length direction of the flashboard, a hydraulic cylinder is arranged on the outer side of the connecting plate and connected to the short side of the flashboard through a connecting rod, and the hydraulic cylinder drives the flashboard to move and enables one filter screen to be communicated with the feeding template and the discharging template.
Preferably, the connecting plate comprises an upper frame plate, a lower frame plate, a rear end plate and a front end plate which are connected with each other, and the upper frame plate and the lower frame plate are connected with the feeding template and the discharging template through screws.
Preferably, the sealing assembly comprises a feeding sealing expansion ring, a polytetrafluoroethylene ring and a feeding sealing ring which are arranged between the feeding template and the filter screen plate, and a discharging sealing ring which is arranged between the discharging template and the filter screen plate.
Preferably, the feeding template, the discharging template and the filter screen plate are detachably and fixedly connected through screws.
According to the invention, the pressure difference in the filter is established by arranging the feeding diversion body and the discharging diversion body, so that the molten plastic can be uniformly and rapidly fed and uniformly distributed on the whole filter screen during filtering, the purpose of rapid filtering is achieved, and the situation that the thermosensitive molten plastic is accumulated on the filter screen and degraded and carbonized is avoided. In addition, the filter screen department sets up to the structure that can change at any time, and when the pressure value of charge-in pipeline reached a set value, the pneumatic cylinder can control the filter screen on the flashboard and in time change, and the filter screen that changes can wash in time, does not influence the filtration work of filter, has improved production efficiency.
Drawings
FIG. 1 is a front view of the present invention;
FIG. 2 is a cross-sectional view of the present invention;
FIG. 3 is an exploded view of the present invention;
wherein: 1-feeding a template; 2-a discharging template; 3-a filter screen plate; 4, a filter screen; 5-a feeding cavity; 6, a discharging cavity; 7-a seal assembly; 8-feed split; 9-discharging and separating fluid; 10-a feed runner; 11-a discharge flow channel; 12-a feed connection; 13-a feed diversion part; 14-an annular feed chute; 15-a discharging connecting part; 16-a discharge diversion part; 17-an annular discharge chute; 18-connecting plates; 19-flashboard; 20-a hydraulic cylinder; 21-an upper frame plate; 22-lower frame plate; 23-a rear end plate; 24-front end plate; 25-feeding a sealed expansion ring; 26-polytetrafluoroethylene ring; 27-a feed seal ring; 28-a discharging sealing ring.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1 to 3, the invention provides a built-in split-flow insert type filter, which comprises a feeding template 1, a discharging template 2 and a filter screen plate 3 positioned between the feeding template 1 and the discharging template 2, wherein a filter screen 4 is arranged on the filter screen plate 3, a feeding cavity 5 and a discharging cavity 6 are formed on the front side and the rear side of the filter screen plate 3, the feeding template 1, the discharging template 2 and the filter screen plate 3 are detachably and fixedly connected, a sealing component 7 is arranged at the joint, a feeding split-flow body 8 is arranged at the feeding end of the feeding template 1, a discharging split-flow body 9 is arranged at the discharging end of the discharging template 2, the feeding split-flow body 8 is positioned in the central area of the feeding cavity 5 and divides the feeding cavity 5 to form an annular feeding flow channel 10, and the volume of the feeding flow channel 10 is gradually increased along the plastic flow direction or is kept in a constant stage state in the increasing process; the discharging split body 9 is positioned in the central area of the discharging cavity 6 and divides the discharging cavity 6 into annular discharging flow passages 11, and the volume of the discharging flow passages 11 is gradually reduced along the flowing direction of the plastic or is kept in a state of unchanged stage in the reducing process.
Preferably, the feeding split body 8 includes an outer feeding connecting portion 12 and an inner feeding guide portion 13, the feeding connecting portion 12 is fixed on the surface of the feeding template 1 by a screw, the feeding guide portion 13 extends into the feeding cavity 5, an annular feeding groove 14 which is communicated with the feeding cavity 5 and the outside and is used for feeding is arranged between the feeding connecting portion 12 and the feeding guide portion 13, and the number of the feeding annular grooves 14 is preferably 4, and the feeding annular grooves 14 are uniformly distributed along the circumferential direction so as to achieve the purpose of uniform feeding.
Preferably, the discharging split body 9 comprises a discharging connecting part 15 at the outer side and a discharging guide part 16 at the inner side, the discharging connecting part 15 is fixed on the surface of the discharging template 2 through screws, the discharging guide part 16 extends into the discharging cavity 6, an annular discharging groove 17 which is communicated with the discharging cavity 6 and the outside and used for discharging is arranged between the discharging connecting part 15 and the discharging guide part 16, the number of the discharging annular grooves 17 is preferably 4, and the discharging annular grooves 17 are uniformly distributed along the circumferential direction so as to achieve the purpose of rapid and uniform discharging.
Preferably, the number of the annular feed grooves 14 and the annular discharge grooves 17 is 2-6, and the annular feed grooves and the annular discharge grooves are uniformly distributed along the respective circumferential directions.
Preferably, the filter screen plate 3 comprises an outer connecting plate 18 and an inner flashboard 19, the connecting plate 18 is connected with the feeding template 1 and the discharging template 2, the filter screens 4 are located on the flashboard 19, the number of the filter screens 4 is 2 and are arranged along the length direction of the flashboard 19, a hydraulic cylinder 20 is arranged on the outer side of the connecting plate 18, the hydraulic cylinder 20 is connected to the short side of the flashboard 19 through a connecting rod, the hydraulic cylinder 20 drives the flashboard 19 to move and enables one filter screen 4 to be communicated with the feeding template 1 and the discharging template 2, and the filter screen plate 3 is a specific structure which can ensure that the filter screen 4 can be replaced at any time and does not influence the normal operation of the filter in the replacement process.
Preferably, the connecting plate 18 includes an upper frame plate 21, a lower frame plate 22, a rear end plate 23 and a front end plate 24 which are connected with each other, and the upper frame plate 21 and the lower frame plate 22 are connected with the feeding die plate 1 and the discharging die plate 2 through screws, so that the connecting plate 18 has a specific structure, and is low in cost and simple in structure, and the flashboard 19 can be conveniently moved normally to replace the filter screen 4.
Preferably, the sealing assembly 7 comprises a feeding sealing expansion ring 25, a polytetrafluoroethylene ring 26 and a feeding sealing ring 27 which are arranged between the feeding template 1 and the filter screen plate 3, and a discharging sealing ring 28 which is arranged between the discharging template 2 and the filter screen plate 3, and has simple structure and good sealing effect.
Preferably, the feeding template 1, the discharging template 2 and the filter screen plate 3 are detachably and fixedly connected through screws, and the connection mode is simple and reliable and is convenient to disassemble and assemble.
In the course of the operation, molten state's plastics get into from annular feed chute 14, under the guide flow of feeding guide part 13, get into in the feeding runner 10, molten state's plastics get into feeding chamber 5 with faster velocity of flow this moment, from filter screen 4 peripheral steady cover to filter screen 4 center, so as to reach whole filter screen 4 and all be in filtering state, the filtration rate is fast, filtration efficiency is high, avoid molten plastics to pile up in filter screen 4 center department, molten plastics after filtering arrive in the ejection of compact chamber 6, discharge through annular blown down tank 17 via ejection of compact runner 11, because the effect of ejection of compact guide part 16, molten plastics just pressure increase when getting into ejection of compact runner 11, the velocity of flow accelerates, in order to realize as early as possible ejection of compact, filtration efficiency is high, the velocity of flow is fast, avoided molten plastics to pile up before filter screen 4, the flashboard 19 has the pneumatic cylinder 20 drive simultaneously, can realize filter screen 4's change, pneumatic cylinder 20 carries out the motion according to the data that pressure sensor on the feed pipe detects, when pressure sensor's pressure value reaches the setting value, the pneumatic cylinder 20 drive flashboard 19 motion, change into another 4 gets into between feeding template 1 and ejection of compact template 2 through annular blown down tank 17, the effect of filter screen 4 is not to be influenced in the whole filter screen change, the time is very little after the whole filter screen is removed, the filter screen is completely is removed and the time is completely and the filter screen is removed, the whole is completely is removed, the time is not completely and the filter screen is completely clean the filter screen is completely.
The foregoing description is only a preferred embodiment of the present invention, and is not intended to limit the invention in any way, but any simple modification, equivalent variation or modification made to the above embodiments according to the technical principles of the present invention still falls within the scope of the technical solutions of the present invention.
Claims (8)
1. The utility model provides a built-in reposition of redundant personnel insert type filter, includes feeding template (1), ejection of compact template (2) and is located filter screen plate (3) between the two, there is filter screen (4) on filter screen plate (3), both sides form feeding chamber (5) and ejection of compact chamber (6) around filter screen plate (3), can dismantle fixed connection and be provided with seal assembly (7) in junction between feeding template (1), ejection of compact template (2) and filter screen plate (3) three, its characterized in that: the plastic material feeding device is characterized in that a feeding end of the feeding template (1) is provided with a feeding split body (8), a discharging end of the discharging template (2) is provided with a discharging split body (9), the feeding split body (8) is positioned in a central area of the feeding cavity (5) and separates the feeding cavity (5) to form an annular feeding flow channel (10), and the volume of the feeding flow channel (10) is gradually increased along the flowing direction of plastic or is kept in a state of constant stage in the increasing process; the discharging split body (9) is positioned in the central area of the discharging cavity (6) and divides the discharging cavity (6) into annular discharging flow passages (11), and the volume of the discharging flow passages (11) is gradually reduced along the flowing direction of plastics or is kept in a state of unchanged stage in the reducing process.
2. The in-line diverter insert filter of claim 1, wherein: the feeding split body (8) comprises an outer feeding connecting part (12) and an inner feeding guide part (13), the feeding connecting part (12) is fixed on the surface of the feeding template (1) through screws, the feeding guide part (13) stretches into the feeding cavity (5), and an annular feeding groove (14) which is communicated with the feeding cavity (5) and the outside and used for feeding is arranged between the feeding connecting part (12) and the feeding guide part (13).
3. The in-line diverter insert filter of claim 2, wherein: the discharging split flow body (9) comprises a discharging connecting part (15) at the outer side and a discharging guide part (16) at the inner side, the discharging connecting part (15) is fixed on the surface of the discharging template (2) through screws, the discharging guide part (16) extends into the discharging cavity (6), and an annular discharging groove (17) which is communicated with the discharging cavity (6) and the outside and used for discharging is arranged between the discharging connecting part (15) and the discharging guide part (16).
4. A split insert filter according to claim 3, wherein: the number of the annular feed grooves (14) and the number of the annular discharge grooves (17) are at least two, and the annular feed grooves and the annular discharge grooves are uniformly distributed along the circumferential direction of the annular feed grooves.
5. The in-line diverter insert filter of claim 1, wherein: the filter screen plate (3) comprises a connecting plate (18) at the outer side and a flashboard (19) at the inner side, the connecting plate (18) is connected with the feeding template (1) and the discharging template (2), the filter screens (4) are located on the flashboard (19), the number of the filter screens (4) is 2, the filter screens are arranged along the length direction of the flashboard (19), a hydraulic cylinder (20) is arranged at the outer side of the connecting plate (18), the hydraulic cylinder (20) is connected to the short side of the flashboard (19) through a connecting rod, and the hydraulic cylinder (20) drives the flashboard (19) to move and enables one filter screen (4) to be communicated with the feeding template (1) and the discharging template (2).
6. The in-line split insert filter of claim 5, wherein: the connecting plate (18) comprises an upper frame plate (21), a lower frame plate (22), a rear end plate (23) and a front end plate (24) which are connected with each other, and the upper frame plate (21) and the lower frame plate (22) are connected with the feeding template (1) and the discharging template (2) through screws.
7. The in-line diverter insert filter of claim 1, wherein: the sealing assembly (7) comprises a feeding sealing expansion ring (25), a polytetrafluoroethylene ring (26) and a feeding sealing ring (27) which are arranged between the feeding template (1) and the filter screen plate (3), and a discharging sealing ring (28) which is arranged between the discharging template (2) and the filter screen plate (3).
8. The in-line diverter insert filter of claim 1, wherein: the feeding template (1), the discharging template (2) and the filter screen plate (3) are detachably and fixedly connected through screws.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811579947.7A CN109849299B (en) | 2018-12-24 | 2018-12-24 | Built-in split-flow insert type filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811579947.7A CN109849299B (en) | 2018-12-24 | 2018-12-24 | Built-in split-flow insert type filter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109849299A CN109849299A (en) | 2019-06-07 |
| CN109849299B true CN109849299B (en) | 2024-04-09 |
Family
ID=66891978
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811579947.7A Active CN109849299B (en) | 2018-12-24 | 2018-12-24 | Built-in split-flow insert type filter |
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| Country | Link |
|---|---|
| CN (1) | CN109849299B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005041015A (en) * | 2003-07-24 | 2005-02-17 | Jfe Steel Kk | Filter apparatus for molten plastic |
| CN203381174U (en) * | 2013-08-12 | 2014-01-08 | 浙江精诚模具机械有限公司 | Circulating-type screen exchanger for filtering melt of plastic extrusion system |
| CN107081892A (en) * | 2017-05-26 | 2017-08-22 | 浙江精诚模具机械有限公司 | The rotary plastics fondant filter of inner core |
| CN209492137U (en) * | 2018-12-24 | 2019-10-15 | 浙江精诚模具机械有限公司 | Built-in shunting block insert type filter |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3617370A1 (en) * | 1986-05-23 | 1987-12-10 | Hoechst Ag | FILTER DEVICE FOR THE EVEN FILTERING OF PLASTIC MELT |
-
2018
- 2018-12-24 CN CN201811579947.7A patent/CN109849299B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005041015A (en) * | 2003-07-24 | 2005-02-17 | Jfe Steel Kk | Filter apparatus for molten plastic |
| CN203381174U (en) * | 2013-08-12 | 2014-01-08 | 浙江精诚模具机械有限公司 | Circulating-type screen exchanger for filtering melt of plastic extrusion system |
| CN107081892A (en) * | 2017-05-26 | 2017-08-22 | 浙江精诚模具机械有限公司 | The rotary plastics fondant filter of inner core |
| CN209492137U (en) * | 2018-12-24 | 2019-10-15 | 浙江精诚模具机械有限公司 | Built-in shunting block insert type filter |
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| Publication number | Publication date |
|---|---|
| CN109849299A (en) | 2019-06-07 |
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