CN202439206U - Non-stop screen exchanger for polypropylene waste material extruder by adopting sequential screwing method - Google Patents
Non-stop screen exchanger for polypropylene waste material extruder by adopting sequential screwing method Download PDFInfo
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- CN202439206U CN202439206U CN2012200763841U CN201220076384U CN202439206U CN 202439206 U CN202439206 U CN 202439206U CN 2012200763841 U CN2012200763841 U CN 2012200763841U CN 201220076384 U CN201220076384 U CN 201220076384U CN 202439206 U CN202439206 U CN 202439206U
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- filtering
- extruder
- die
- feeding
- rotating device
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Abstract
The utility model discloses a non-stop screen exchanger for a polypropylene waste material extruder by adopting a sequential screwing method. The non-stop screen exchanger comprises an extruder, a die feeding channel and a forming die, wherein a rotating device is arranged between the extruder and the die feeding channel; two to five filtering devices are arranged in the rotating device and are uniformly distributed around the center of a rotating shaft; filtering screens are arranged in the filtering devices; and communicating grooves for communicating adjacent filtering screens are also arranged in the filtering devices. When the filtering screens positioned at the feeding positions are completely blocked and cannot be used, the rotating device can be rotated, so that next filtering screen reaches the feeding position and is locked. The communicating grooves are arranged in the rotating device, so that a discharge opening of the extruder is enabled to be always communicated with the die feeding flow channel of the die by an effective area of the filtering screens in the rotating process and further the continuous feeding in the whole process and the filtering quality are ensured. The non-stop screen exchanger disclosed by the utility model has the beneficial effects that continuous filtering is realized in the screen exchange process, the quality stability of products can be improved and the time waste and material loss can be remarkably reduced.
Description
Technical field
The utility model relates to the Polywoven Bag production equipment, and promptly a kind of order screws out method polypropylene waste material extruder and do not shut down net-changing device.
Background technology
At present; Common Polywoven Bag production process is following: raw material → plastic-wire drawing machine → winder → circular weaving machine → compounding machine → printing machine → cutting bag machine is put a bag frame → sack closer → baling press → dispatch from the factory; Have a large amount of waste materials to produce in the production, many impurity is arranged in the waste material of recovery, the waste material of recovery is through broken, oven dry; The raw material that oven dry is good is put wire drawing machine into and is re-used, and drops into and produces.Get into extruder after under the mutual shearing of the external heat of 190-250 ° of C and screw rod and machine barrel at raw material; Material is under almost completely plasticizing situation; Extruded through mould molding by quantitative, level pressure; The film that becomes molten gets in the cooling water, after cooling, gets into wire-drawing equipment and finally forms flat filament.In order to prevent that impurities in raw materials particle etc. from getting into mould, before the plasticizing back gets into mould fully, screen pack is housed at raw material.But; Screen pack is designed to fixed structure usually in existing molding machine equipment; Changed again when screen pack stops up the charging machinery that must stop under the out of use situation fully, therefore influenced ordinary production, wasted plenty of time and plastic raw materials.
Summary of the invention
In order to overcome the deficiency of existing molding machine the problems referred to above, the utility model provides a kind of order to screw out the new design that method polypropylene waste material extruder is not shut down net-changing device.
This order screws out method polypropylene waste material extruder and does not shut down net-changing device; Comprise extruder, die feeding road and mould, it is characterized in that, between extruder and die feeding road, whirligig is housed; 2-5 filter is installed in whirligig; Filter evenly distributes around rotating shaft center, and screen pack is arranged in the filter, is communicated with the connection groove of adjacent screen pack in the filter in addition.
When the screen pack that is in the feed position is stopped up can not use the time fully, can rotate whirligig by certain orientation, make next screen pack arrive feed position and locking.In whirligig, be designed with the connection groove, make screen pack guarantee that in the process of rotation the effective filtration area that filters can make extruder discharging opening and die feeding runner be communicated with all the time, has therefore guaranteed the uninterrupted of whole process charging and the quality of filtering.
The beneficial effect of the utility model is that the draping process is uninterruptedly filtered, and can not only improve the stability of quality of item, can also significantly reduce the loss of waste of time and material, the effect that play when saving, joint consumes, guarantees the quality.
Description of drawings
Accompanying drawing 1 is the scheme schematic diagram of the utility model.
Among the figure: 1. whirligig, 2. filter, 3. screen pack, 4. die feeding road, 5. mould 6. is communicated with groove.
The specific embodiment
In Fig. 1; This order screws out method polypropylene waste material extruder and does not shut down net-changing device, comprises extruder (not shown), die feeding road 4 and mould 5, between extruder and die feeding road 4, whirligig 1 is housed; 5 filters 2 are installed in whirligig 1; Filter 2 evenly distributes around rotating shaft center, and screen pack 3 is arranged in the filter 2, is communicated with the connection groove 6 of adjacent screen pack in the filter 2 in addition.
Claims (1)
1. order screws out method polypropylene waste material extruder and does not shut down net-changing device; Comprise extruder, die feeding road and mould, it is characterized in that, between extruder and die feeding road, whirligig is housed; 2-5 filter is installed in whirligig; Filter evenly distributes around rotating shaft center, and screen pack is arranged in the filter, is communicated with the connection groove of adjacent screen pack in the filter in addition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200763841U CN202439206U (en) | 2012-03-05 | 2012-03-05 | Non-stop screen exchanger for polypropylene waste material extruder by adopting sequential screwing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200763841U CN202439206U (en) | 2012-03-05 | 2012-03-05 | Non-stop screen exchanger for polypropylene waste material extruder by adopting sequential screwing method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202439206U true CN202439206U (en) | 2012-09-19 |
Family
ID=46820660
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200763841U Expired - Fee Related CN202439206U (en) | 2012-03-05 | 2012-03-05 | Non-stop screen exchanger for polypropylene waste material extruder by adopting sequential screwing method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202439206U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108501345A (en) * | 2018-05-04 | 2018-09-07 | 广东省智能制造研究所 | A kind of rotary core shaft does not shut down direct current net-changing device |
| CN113926840A (en) * | 2021-10-21 | 2022-01-14 | 生态环境部南京环境科学研究所 | Biological pile repairing method for organic contaminated soil |
-
2012
- 2012-03-05 CN CN2012200763841U patent/CN202439206U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108501345A (en) * | 2018-05-04 | 2018-09-07 | 广东省智能制造研究所 | A kind of rotary core shaft does not shut down direct current net-changing device |
| CN113926840A (en) * | 2021-10-21 | 2022-01-14 | 生态环境部南京环境科学研究所 | Biological pile repairing method for organic contaminated soil |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120919 Termination date: 20130305 |