CN2737533Y - Net changer structure - Google Patents
Net changer structure Download PDFInfo
- Publication number
- CN2737533Y CN2737533Y CN 200420093273 CN200420093273U CN2737533Y CN 2737533 Y CN2737533 Y CN 2737533Y CN 200420093273 CN200420093273 CN 200420093273 CN 200420093273 U CN200420093273 U CN 200420093273U CN 2737533 Y CN2737533 Y CN 2737533Y
- Authority
- CN
- China
- Prior art keywords
- net
- filter screen
- hole
- changing device
- device structure
- Prior art date
- 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 net changer structure, which is composed of a net changer body and a hydraulic driving system. The net changer body contains a strainer main body and a strainer mandril; the center of the strainer main body is lengthways provided with a circular through hole with a smooth wall, and the circular through hole is horizontally extended with a feed inlet and a discharge port; the strainer mandril is connected with the hydraulic driving system and is tightly held in the circular through hole. The middle part of the strainer mandril is provided with a plurality of cavities whose one end is matched with the feed inlet and other end is matched with the discharge port while filter screens are installed in the cavities. The seal is realized by the common difference of the cylindric hole shaft because the utility model adopts a cylindrical net changer, thus the phenomenon of breaking a copper collar existing in the prior art can not occur, which realizes convenient installation and maintenance without leak. Pressure modules for adjusting the feed stock flow are added to the utility model, and an adjusting valve stem is adopted to increase or decrease the pressure of the feed stock flow.
Description
Technical field
The utility model relates to applied net-changing device structure on a kind of plastic extruder, provides a kind of installation, attended operation especially conveniently, can realize adjusting the net-changing device of materials flow pressure.
Background technology
In the process that plastics are extruded, plastic melt will produce in the melt and decompose residual thing through plastifying for a long time and being heated, add the impurity in the raw material, in a single day they enter in the extruder head, will cause runner to block, defective appears in plastic products, and even can not ordinary production.
For the filtering foreign material, make pure melt enter extrusion molding machine head smoothly, between screw head and extrusion molding machine head, screen pack be set usually, be used for stoping impurity and foreign matter to enter among the former.Along with the continuity that finds time, the foreign material on the screen pack build up and cause head pressure to raise, and flow descends, and when surpassing certain pressure, screen pack is promptly broken up, and filter screen lost efficacy, and just must shut down and change screen pack this moment.Net → intensification → traction blank → ordinary production is extruded again from form removal head → clean → renew, and this operation overall process is dozens of minutes at least, several hours at most, causes raw material loss, energy waste, production cost to increase.
For a long time, China most plastic products factory, even some plastic extruder manufactories supporting filter screen device still adopt artificial draping, or the long-acting filter that falls behind, a kind of format net-changing device is arranged in addition, be provided with the sealing copper ring between the filter screen version of this format net-changing device and the filter screen device main body, but the existence of this sealing copper ring makes inconvenient operation such as installation, maintenance, if do not note slightly, the filter screen version will break the sealing copper ring, make it distortion, cause to seal bad and the leakage material.And existing net-changing device can not realize adjusting the function of materials flow pressure.
The utility model content
The purpose of this utility model is to overcome the deficiencies in the prior art, provides a kind of installation, maintenance etc. easy to operate especially, can realize adjusting the net-changing device structure of materials flow pressure.
To achieve these goals, the technical solution adopted in the utility model is:
A kind of net-changing device structure, this net-changing device structure is made up of net-changing device body, fluid power system, wherein:
This net-changing device body includes filter screen device main body, filter screen device mandrel;
These filter screen device main body central authorities are vertically arranged with the round through hole of hydraulically smooth surface, and this round through hole horizontal expansion has charging aperture, discharging opening;
This filter screen device mandrel links to each other with this fluid power system, its closely knit being placed in this round through hole, this filter screen device mandrel middle part is provided with a plurality of chambers, and this chamber one end and this charging aperture match, the other end and this discharging opening match, and are equipped with filter screen in this chamber.
Friction when sliding in order to reduce filter screen device mandrel has several annular grooves in this filter screen device mandrel arranged outside.
In addition, be provided with circlip for hole between this chamber and the filter screen.
And this filter screen is arranged on the filter screen piece.
The other end that links to each other with this fluid power system at this filter screen device mandrel is provided with the mandrel limited block.
In order to realize adjusting the function of materials flow pressure, the utility model net-changing device structure also includes adjusts the materials flow pressure assembly, this is adjusted the materials flow pressure assembly and is made up of valve seat, valve rod, filler lid, handwheel, these valve seat central authorities are provided with through hole, this through hole one end links to each other with described discharging opening, the other end is connected with this handwheel, be provided with the materials flow discharging opening at this through hole middle part, this valve rod is placed through in this through hole, be provided with gland at this valve rod and handwheel junction, this gland is locked on this valve seat.
In addition,, between this valve rod and this valve seat, be provided with stuffing-box, be filled with airtight and watertight padding in this stuffing-box in order to strengthen the sealing function of adjusting the materials flow pressure assembly.
Because the utility model adopts the column type net-changing device, promptly be that the tolerance by cylindrical hole axle realizes sealing fully, what can not occur existing in the prior art breaks the copper ring phenomenon, convenient and can not produce with Louing and expect when realizing the installation and maintenance operation.The utility model has also increased the device that can adjust materials flow pressure, promptly adjusts the materials flow pressure assembly, when materials flow pressure need increase or reduce, reaches by adjusting valve rod.
Be further described this use is novel below in conjunction with the drawings and specific embodiments.
Description of drawings
Fig. 1 is the structural representation of the utility model net-changing device;
Fig. 2 is the B-B cross-sectional view of the utility model net-changing device.
The specific embodiment
As shown in Figure 1 and Figure 2, be the structural representation of the utility model net-changing device, it cooperate to be installed cast film machine extruder and uses, and can not shut down, draping continuously; The described hydraulic sliding type net-changing device of present embodiment is made up of net-changing device body 30, fluid power system 19 two parts.
This net-changing device body 30 includes filter screen device main body 7, filter screen device mandrel 6, and this filter screen device mandrel 6 is in the driving lower slider of following fluid power system 19;
These filter screen device main body 7 central authorities are vertically arranged with the round through hole of hydraulically smooth surface, and this round through hole horizontal expansion has charging aperture 31, discharging opening 32;
This filter screen device mandrel 6 is by linking to each other with this fluid power system 19, and this fluid power system 19 includes hydraulic cylinder 18, hydraulic cylinder support plate 1, hydraulic cylinder pillar 2, because this fluid power system 19 is a prior art, does not repeat them here.This fluid power system 19 links to each other with filter screen device mandrel 6 with slide-and-guide piece 4 by contiguous block 3.
This filter screen device mandrel 6 is closely knit to be placed in the round through hole of these filter screen device main body 7 central authorities.Be provided with two chambers 33 at these filter screen device mandrel 6 middle parts, each chamber 33 is combined by cylindrical and truncated cone-shaped and combines, one end and this charging aperture 31 match, the other end and this discharging opening 33 match, in this chamber 33, be equipped with filter screen 20, this filter screen 20 is arranged on the filter screen piece 5, and is provided with circlip for hole 21 between these chamber 33 inwalls and the filter screen 20, to be used for strengthening and fixing filter screen 20.In order to make this filter screen device mandrel 6 when sliding, accurately locate, be provided with mandrel limited block 8 in the bottom of this filter screen device mandrel 6.
The outside in these filter screen device mandrel 6 tops and bottom is respectively arranged with bipassage ring connected in star 34, the friction in the time of can reducing filter screen device mandrel like this and slide in round through hole.
Another key character of the utility model is the function that has realized adjusting materials flow pressure.The utility model net-changing device structure includes adjusts materials flow pressure assembly 35, and this adjustment materials flow pressure assembly 35 is made up of valve seat 17, valve rod 16, filler lid 12, handwheel 22, and these valve seat 17 central authorities are provided with through hole 36; Adjust materials flow pressure assembly 35 is fixed on filter screen device mandrel 6 by big flange 9 discharging opening 32 places, like this, these through hole 36 1 ends just can be connected with described discharging opening 32, the other end is connected with this handwheel 22, be provided with materials flow discharging opening 37 at these through hole 36 middle parts, this valve rod 16 is placed through in this through hole 36, is provided with gland 12 at this valve rod 16 and handwheel 22 junctions, and this gland 12 is locked on this valve seat 17 by nut 11.In addition,, between this valve rod 16 and this valve seat 17, be provided with stuffing-box 15, be filled with airtight and watertight padding 14,13 in this stuffing-box 15 in order to strengthen the sealing function of adjusting materials flow pressure assembly 37.
The utility model embodiment then starts oil pump when the needs draping, fluid power system 19 is twitched filter screen device mandrel 6, exposes the filter screen piece and carries out draping, and draping finishes, and filter screen device mandrel 6 resets.
When the pressure behind the net-changing device need increase, valve rod 16 is screwed into a bit by handwheel 22; When pressure need reduce, by handwheel 22 valve rod 16 is back-outed a bit again.
Net-changing device described in the utility model can be installed on the extruder of any model, particularly suitable to processing high-quality thermoplastic article, such as: blown film, pouring film, composite membrane, flat filament, monofilament, corrugated plate, extrusion sheet, insulating tape, CABLE MATERIALS, thin-wall pipes, thin-wall special-shaped material etc.Practice shows, this net-changing device is installed on extruding production line can be increased production significantly, reduces cost greatly, and energy-saving effect is very outstanding.
Along with being growing more intense of market competition, reducing product cost, improve extruder efficient, the matter of providing quality goods or brilliant is striven for high yield is the most important thing of each enterprise.Net-changing device described in the utility model is more and more favored by people, also becomes one of requisite efficient mated equipment of plastic extruder.
In sum, the utility model from application target, on the usefulness, viewpoint such as progressive and novelty sets forth, the practical improvement that it has, function enhancement and practical important document that novel Patent Law is emphasized have been met, shown in the implementation and accompanying drawing that the utility model is above, be one of the utility model preferred embodiment, be not to limit to the utility model with this, therefore, such as with approximate, identical person such as structure of the present utility model, device, feature, all should belong to of the present utility model founding within purpose and the claim.
Claims (7)
1, a kind of net-changing device structure, this net-changing device structure is made up of net-changing device body, fluid power system, it is characterized in that:
This net-changing device body includes filter screen device main body, filter screen device mandrel;
These filter screen device main body central authorities are vertically arranged with the round through hole of hydraulically smooth surface, and this round through hole horizontal expansion has charging aperture, discharging opening;
This filter screen device mandrel links to each other with this fluid power system, its closely knit being placed in this round through hole, this filter screen device mandrel middle part is provided with a plurality of chambers, and this chamber one end and this charging aperture match, the other end and this discharging opening match, and are equipped with filter screen in this chamber.
2, net-changing device structure as claimed in claim 1 is characterized in that: this filter screen device mandrel arranged outside has several annular grooves.
3, net-changing device structure as claimed in claim 1 is characterized in that: be provided with circlip for hole between this chamber and the filter screen.
4, net-changing device structure as claimed in claim 1, it is characterized in that: this filter screen is arranged on the filter screen piece.
5, net-changing device structure as claimed in claim 1 is characterized in that: the other end that this filter screen device mandrel links to each other with this fluid power system is provided with the mandrel limited block.
6, net-changing device structure as claimed in claim 1, it is characterized in that: this net-changing device structure also includes adjusts the materials flow pressure assembly, this is adjusted the materials flow pressure assembly and is made up of valve seat, valve rod, filler lid, handwheel, these valve seat central authorities are provided with through hole, this through hole one end links to each other with described discharging opening, the other end is connected with this handwheel, be provided with the materials flow discharging opening at this through hole middle part, this valve rod is placed through in this through hole, be provided with gland at this valve rod and handwheel junction, this gland is locked on this valve seat.
7, net-changing device structure as claimed in claim 6 is characterized in that: be provided with stuffing-box between this valve rod and this valve seat, be filled with airtight and watertight padding in this stuffing-box.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420093273 CN2737533Y (en) | 2004-09-14 | 2004-09-14 | Net changer structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420093273 CN2737533Y (en) | 2004-09-14 | 2004-09-14 | Net changer structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2737533Y true CN2737533Y (en) | 2005-11-02 |
Family
ID=35347447
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420093273 Expired - Fee Related CN2737533Y (en) | 2004-09-14 | 2004-09-14 | Net changer structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2737533Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102092107A (en) * | 2010-12-18 | 2011-06-15 | 大连橡胶塑料机械股份有限公司 | Screen changer for squeezing granulators |
| CN105889619A (en) * | 2014-12-05 | 2016-08-24 | 安顺市晶英科技研发有限责任公司 | Sealing copper ring for mechanical stroke reverser |
| CN107053636A (en) * | 2017-02-02 | 2017-08-18 | 汕头市汕樟机械制造有限公司 | A kind of expansion type net-changing device |
| CN110587941A (en) * | 2019-10-27 | 2019-12-20 | 重庆融豪太视科技有限公司 | Extrusion molding system of super wide PC sheet |
-
2004
- 2004-09-14 CN CN 200420093273 patent/CN2737533Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102092107A (en) * | 2010-12-18 | 2011-06-15 | 大连橡胶塑料机械股份有限公司 | Screen changer for squeezing granulators |
| CN105889619A (en) * | 2014-12-05 | 2016-08-24 | 安顺市晶英科技研发有限责任公司 | Sealing copper ring for mechanical stroke reverser |
| CN107053636A (en) * | 2017-02-02 | 2017-08-18 | 汕头市汕樟机械制造有限公司 | A kind of expansion type net-changing device |
| CN107053636B (en) * | 2017-02-02 | 2019-02-05 | 汕头市汕樟机械制造有限公司 | A kind of expansion type net-changing device |
| CN110587941A (en) * | 2019-10-27 | 2019-12-20 | 重庆融豪太视科技有限公司 | Extrusion molding system of super wide PC sheet |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Net changer structure Effective date of registration: 20100920 Granted publication date: 20051102 Pledgee: Guangdong Development Bank, Limited by Share Ltd, Foshan branch Pledgor: Zhang Chunhua Registration number: 2010990000891 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20130522 Granted publication date: 20051102 Pledgee: Guangdong Development Bank, Limited by Share Ltd, Foshan branch Pledgor: Zhang Chunhua Registration number: 2010990000891 |
|
| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| PM01 | Change of the registration of the contract for pledge of patent right |
Change date: 20130522 Registration number: 2010990000891 Pledgee after: Guangdong Development Bank, Limited by Share Ltd, Foshan branch Pledgee before: Guangdong Development Bank, Limited by Share Ltd, Foshan branch |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20051102 Termination date: 20130914 |