CN206690515U - A kind of screen pack automatic screen changer - Google Patents
A kind of screen pack automatic screen changer Download PDFInfo
- Publication number
- CN206690515U CN206690515U CN201720204186.1U CN201720204186U CN206690515U CN 206690515 U CN206690515 U CN 206690515U CN 201720204186 U CN201720204186 U CN 201720204186U CN 206690515 U CN206690515 U CN 206690515U
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- CN
- China
- Prior art keywords
- screen pack
- screen
- electrothermal tube
- draping
- changer according
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The utility model discloses a kind of screen pack automatic screen changer, in order to solve in production process because impurities accumulation causes melt extrusion to block, melt percent of pass reduces, need frequently to clear up screen pack or change screen pack, the problem of so as to influence normally to produce, including screen pack, enter casting head after screen pack, it is characterized in that described screen pack is provided with two layers or more than two layers, screen pack one end is collected in guard, guard is fixed on filter screen stand, PET melts center-aisle is provided with the main electrothermal tube of some rows and the cooling water pipe supporting with main electrothermal tube, the outside of one end cooling water pipe is provided with draping electrothermal tube on screen pack.The crushing strength of screen pack is increased, avoids blocking.
Description
Technical field
It the utility model is related to device of plastic processing technology, the multilayer on particularly a kind of PET flat filament drawing machine
Screen pack automatic screen changer.
Background technology
PET is because being widely used in varieties of food items, medicine, nontoxic sterile packaging material, and electronic applications, machinery neck
The base material of domain, cinefilm, computer format floppy etc., and substantial amounts of rubbish is produced, these garbage reclamations are one using changing waste into valuables
Item is compared with large-engineering.These waste materials are made in production process of the flat filament as the product raw material such as woven bag, adulterate a little impurity unavoidably,
Thus need to filter out these impurity and thickener by the mesh sheet in net-changing device, extrusion type net-changing device be include one or
The manually or automatically switching device of multiple filter screens, for foreign particle and contaminant filter are fallen when plastifying material flows through filter screen
Device.Existing filter mainly has following several：A kind of plastics drawing designed such as patent publication No. for CN101187069A
Silk machine filter, including barrel-type casing, one end of housing are provided with filter core fixed plate, detachably installed in filter core fixed plate
There are some filter cores, end cap is installed on the outside of filter core fixed plate, end cap is provided with discharging opening, and the other end of housing is provided with adapter sleeve,
Adapter sleeve is provided with charging aperture, and filter core is cylindrical, and it includes the inner support tube that tube wall is provided with some through holes, is wrapped in interior branch
Multiple filtration net outside stay tube；One end that inner support tube is located at charging aperture is blind end, and the other end of inner support tube is arranged on filter
In core fixed plate, the outlet of inner support tube connects with discharging opening, using adding multiple filter cores in housing and wrapped up on filter core
There is the mode of multiple filtration net, instead of original filter screen.And for example patent publication No. is CN103572384A, a kind of disclosed modeling
Expect that the filter of wire drawing machine, including spout, Rose Box, discharging opening, spout are fixedly connected with Rose Box, Rose Box is with going out
Material mouth is fixedly connected, and is provided with the first motor between spout and Rose Box, and the first power of motor is 1000w-2000w, Rose Box
Filter and screen pack are provided with, the first motor is provided with stirring flabellum, and stirring flabellum is pressed close to filter surface, gone back in Rose Box
Provided with the second motor, the second power of motor is 300w-600w, and the second motor is connected with screen pack.
It is that plastics are made through plastic flat filament drawing machine group in raw material that these devices, which are mainly used in polypropylene PP or polythene PE,
Flat filament, its product quality are difficult to reach high requirement, especially to PET waste or used plastics, because impurities accumulation causes in production process
Melt extrusion blocks, and reduces melt percent of pass, it is necessary to frequently clear up screen pack or change screen pack, so as to influence normal life
Production.
The content of the invention
The purpose of this utility model is to solve the above problems, there is provided it is a kind of reasonable in design, it is waste and old PET can be completed
The crushed material of material directly produce plastic flat fiber and can be with power-assisted PET melts normal through screen pack wire drawing machine multiple filtration
Net automatic screen changer.
Above-mentioned technical problem of the present utility model is mainly what is be addressed by following technical proposals：A kind of screen pack is certainly
Dynamic net exchanging device, extrusion device end, including screen pack are arranged on, enters casting head after screen pack, it is characterised in that institute
The screen pack stated is provided with two layers or more than two layers, and screen pack one end is collected in guard, and guard is fixed on filter screen stand,
PET melts center-aisle is provided with the main electrothermal tube of some rows and the cooling water pipe supporting with main electrothermal tube, one end on screen pack
The outside of cooling water pipe is provided with draping electrothermal tube.
The technical program utilizes the characteristics of PET material, PET give up mineral water bottle etc. recovery crushed material be directly used in modeling
Expect the production of flat filament, wherein impurity is rationally and effectively removed in extrusion is melted, and be unlikely to melt and lacked
Measure debris and stop that lower concentrate is blocked.The present apparatus is overlapped using two layers or more than two layers of screen pack, increases filtering mouth
Crushing strength, screen pack after superposition due to its hole mesh can mutually stagger, hole hole communicates and single net between a variety of chis such as not be present
Very little gap, make melt by when impurity be fully blocked, and when impurity thickener reaches a certain amount of, melt will influenceed just
Usually through, now, accumulation of melt, the increase of pressure that Multilayer Network is subject to, but actual percent of pass does not increase or normally；This programme exists
The periphery of main electrothermal tube sets draping electrothermal tube, and according to PET melt fluidity feature, this assist type heating makes to be deposited in
The melt of main extrusion shifts to the screen pack position of auxiliary heating so that accumulation part PET melts walk it is vacant to the periphery
Screen pack, virtually increase by area, avoid blocking.
The draping electrothermal tube of the present apparatus can carry out outer peripheral areas heating automatically, and heating region can be that part can also be area
Block；It can realize that screen pack secondary flow regions are automatic temperature-controlled with coupling for draping electrothermal tube by cooling system, to reach optimal
Opening time and the effect of maximum percent of pass.
Preferably, described draping electrothermal tube is provided with a row or some rows.Flexible arrangement, reach best results.
Preferably, it is provided with clearance hole between described main electrothermal tube and cooling water pipe.
Preferably, described clearance hole is a row or multi-row.
Preferably, described screen pack, which is roll type, collects mode, each screen pack is individual layer or rebuilding.
Preferably, the center-aisle of described PET melt extrusions and the peripheral channel at draping electrothermal tube position are located at
In same plane.
Preferably, a described row or some row's draping electrothermal tubes are linear pattern or camber or circle.
Preferably, described screen pack position is provided with pressure monitoring device, pressure monitoring device and draping electrothermal tube
Electric control gear connects.Pressure of the draping electrothermal tube according to suffered by screen pack carries out heating work automatically, and its heating-up temperature ensures PET
Melt proper flow.
The beneficial effects of the utility model are：The screen pack cleaning draping time is substantially prolongs, screen pack was changed once from 2 days
Extend to a draping in month once, and save raw material；Increase the crushing strength for filtering filter screen of making a slip of the tongue；Make melt by when it is miscellaneous
Matter is fully blocked, and has been dredged the flowing of accumulation part PET melts, has been avoided blocking, ensure that being normally carried out for production；It is full
Foot particularly can directly produce the requirement of plastic flat fiber using PET raw materials using useless mineral water bottle crushed material.
Brief description of the drawings
Fig. 1 is that one kind of the present utility model uses production line part-structure schematic diagram.
Fig. 2 is a kind of structural representation of the present utility model.
Fig. 3 is a kind of screen pack overlooking the structure diagram of the present utility model.
In figure：1. crystallizing tower unit, 2. drying tower units, 3. plastic extrusion apparatus, the automatic draping dress of 4. screen packs
Put, 41. screen packs, 42. filter screen stands, 43. main electrothermal tubes, 44. cooling water pipes, 45. draping electrothermal tubes, 46. nets
Cover, 47. clearance holes, 5. measuring pumps, 6. casting heads, 7. HV generators, 8. film cooling and shaping rollers, 9. is thin
Film draw-gear, 10. cutting wire mechanisms, 11. strand haulage gears.
Embodiment
Below by embodiment, and with reference to accompanying drawing, the technical solution of the utility model is described in further detail.
As shown in figure 1, a kind of screen pack automatic screen changer of the present embodiment, is arranged on plastic flat fiber production line, including
Crystallizing tower unit 1, drying tower unit 2, since plastic extrusion apparatus 3, raw material enter former from plastic extrusion apparatus 3
Hopper enters, and extruded machine screw rod enters casting head 6 to screen pack automatic screen changer 4, then by measuring pump 5, is cast mould
First 6 position is provided with HV generator 7, and PET melts enter film cooling and shaping roller 8 through HV generator 7, by film
Draw-gear 9 introduces cutting wire mechanism 10, afterwards into strand haulage gear 11.
Screen pack automatic screen changer 4 includes the screen pack 41 of two superimposed arrangement, and every layer of screen pack mesh number is 200
Mesh, two layers of screen pack 41 are collected in two drum type brake being placed in parallel guards 46 respectively, and guard 46 is fixed on filter screen stand
On 42, screen pack 41 is coordinated by rack and extruder extrusion.
The main electrothermal tube 43 for setting two rows to be arranged in parallel at the center-aisle position of PET melt extrusions, such as Fig. 2, Fig. 3 institute
Show, slider, i.e. two row's clearance holes 47 with main electrothermal tube 43 parallel arrangement, the cloth of clearance hole 47 are set in the main outside of electrothermal tube 43
Cooling system is put, cooling system includes two row's cooling water pipes 44 with main electrothermal tube 43 parallel arrangement；Passage is extruded in PET melts
In, positioned at cooling system（That is cooling water pipe 44）Periphery be provided with draping electrothermal tube, specifically away from the one end of guard 46
Row's draping electrothermal tube 45 is arranged on screen pack.The center-aisle of PET melt extrusions and the peripheral channel position of draping electrothermal tube
In in same plane.
Further, determine that draping electrothermal tube 45 is single or multiple rows of according to the extrusion structure type of plastic extrusion apparatus 3
Arrangement；It can be the various structures mode such as linear pattern pipe or camber pipe or round tube to arrange draping electrothermal tube 45 simultaneously；Screen pack 41
Mode is collected for roll type, and determines each screen pack for individual layer also according to situations such as PET melts load, material water
It is using bilayer.
The position of screen pack 41 is provided with pressure monitoring device, and the electric control part of the pressure monitoring device and draping electrothermal tube joins
Connect, realize automatic heating, stop, during work, when the center-aisle position of PET melt extrusions is increased so as to filtering because of debris
When net 41 produces pressure, when the pressure reaches setting value, the setting value, which has caused center-aisle PET melts to produce accumulation, to be caused
Existing clogging, draping electrothermal tube carry out outer peripheral areas heating automatically, PET melts is changed direction of travel, pass through filtering
Net, when the pressure recovery is normal, draping electrothermal tube is stopped, by original main working region operation of electrothermal tube 43.
Above-described embodiment be to explanation of the present utility model, be not to restriction of the present utility model, it is any new to this practicality
Structure after the simple transformation of type belongs to the scope of protection of the utility model.
Claims (8)
1. a kind of screen pack automatic screen changer, it is arranged on extrusion device end, including screen pack（41）, screen pack entrance afterwards
Casting head（6）, it is characterised in that described screen pack（41）Provided with two layers or more than two layers, screen pack one end is collected in guard
（46）In, guard is fixed on filter screen stand（42）On, PET melts center-aisle is provided with the main electrothermal tube of some rows（43）And with
The supporting cooling water pipe of main electrothermal tube（44）, the outside of one end cooling water pipe is provided with draping electrothermal tube on screen pack（45）.
A kind of 2. screen pack automatic screen changer according to claim 1, it is characterized in that draping electrothermal tube（45）Provided with one
Row or some rows.
A kind of 3. screen pack automatic screen changer according to claim 2, it is characterized in that described main electrothermal tube（43）With
Cooling water pipe（44）Between be provided with clearance hole（47）.
A kind of 4. screen pack automatic screen changer according to claim 3, it is characterised in that described clearance hole（47）For
It is a row or multi-row.
A kind of 5. screen pack automatic screen changer according to claim 1 or 2, it is characterised in that described screen pack（41）
Mode is collected for roll type, each screen pack is individual layer or rebuilding.
6. a kind of screen pack automatic screen changer according to claim 5, it is characterized in that described PET melt extrusions
Center-aisle and draping electrothermal tube（45）In the peripheral channel at position is generally aligned in the same plane.
A kind of 7. screen pack automatic screen changer according to claim 2, it is characterized in that a described row or some rows change
Net electrothermal tube（45）For linear pattern or camber or circle.
A kind of 8. screen pack automatic screen changer according to claim 7, it is characterized in that described screen pack（41）Position
Provided with pressure monitoring device, pressure monitoring device and draping electrothermal tube（45）Electric control gear connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720204186.1U CN206690515U (en) | 2017-03-03 | 2017-03-03 | A kind of screen pack automatic screen changer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720204186.1U CN206690515U (en) | 2017-03-03 | 2017-03-03 | A kind of screen pack automatic screen changer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206690515U true CN206690515U (en) | 2017-12-01 |
Family
ID=60442405
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720204186.1U Expired - Fee Related CN206690515U (en) | 2017-03-03 | 2017-03-03 | A kind of screen pack automatic screen changer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206690515U (en) |
-
2017
- 2017-03-03 CN CN201720204186.1U patent/CN206690515U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171201 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |