CN201587059U - Check valve for vacuum hopper - Google Patents
Check valve for vacuum hopper Download PDFInfo
- Publication number
- CN201587059U CN201587059U CN2009203142598U CN200920314259U CN201587059U CN 201587059 U CN201587059 U CN 201587059U CN 2009203142598 U CN2009203142598 U CN 2009203142598U CN 200920314259 U CN200920314259 U CN 200920314259U CN 201587059 U CN201587059 U CN 201587059U
- Authority
- CN
- China
- Prior art keywords
- check
- check valve
- vacuum hopper
- suction mouth
- check ring
- 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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Abstract
The utility model relates to a check valve for vacuum hopper, which is characterized in that the check valve is connected on a material suction mouth of the vacuum hopper; the check valve is provided with a check ring and a check plate which is movably sleeved on the check ring; the check ring adopts an opening, one end of which is connected at the highest point of the material suction mouth. The shape of the check plate matches the transverse section of the material suction mouth, and the size is slightly larger than the transverse section of the material suction mouth; an upper limit point is arranged on the check ring to limit the upturning of the check plate. When cleaning the dust in a filter screen, the check valve is closed, so as to prevent the raw material and air being blown from the material suction mouth to a raw material box, meanwhile, the check valve also ensures that the dust in the raw material can not be blown into a workshop, thus causing environment pollution.
Description
Technical field
The utility model relates to a kind of plastic processing machinery, relates in particular to the vacuum hopper in a kind of plastic raw materials feeder.
Background technology
The operation principle of plastics feeder vacuum hopper is seen shown in Figure 1, and air entry connects the negative pressure motor, and material sucking port connects suction tube, and suction tube inserts in the former hopper.When the negative pressure motor starting, air entry will have negative pressure to produce, and raw material will enter in the hopper by material sucking port this moment, because screen pack, raw material will get lodged in herein.Time is up when suction, and the negative pressure motor shuts down, and negative pressure disappears, and raw material is owing to the gravity reason will be fallen in the container of appointment from blanking port.After a period of time, the negative pressure motor will just change, and produce malleation, and screen pack is cleared up dust, and at this moment, some raw materials and dust will be blown from material sucking port.
Summary of the invention
The utility model mainly is to solve the existing in prior technology deficiency, thereby develops a kind ofly in the blowback cleaning dust to screen pack, and dust can not fly into the workshop, be used for the non-return valve of vacuum hopper.
Above-mentioned technical problem of the present utility model is mainly solved by following technical proposals: a kind of non-return valve that is used for vacuum hopper is characterized in that: the material sucking port at vacuum hopper is connected with non-return valve; Described non-return valve has check ring and the check plate of kink on the check ring; Described check ring is opening (purpose of opening is convenient the connection, also not opening), and an end is connected the material sucking port peak.
The technical solution of the utility model can also be further perfect:
As preferably, described check plate shape and material sucking port cross section adapt, and area is slightly larger than the material sucking port cross-sectional area.
As preferably, described check ring is provided with places restrictions on the upper limit site of turning on the check plate.
The beneficial effects of the utility model are: when screen pack was cleared up dust, non-return valve was closed, and prevented that raw material and air from can not blow back into going into former hopper from material sucking port, had also guaranteed that the dust in the raw material can not be blown into the workshop and cause pollution to environment simultaneously.
Description of drawings
Accompanying drawing 1 is a kind of installation site of the present utility model view;
Accompanying drawing 2 is A portion enlarged drawings.
The specific embodiment
Below by embodiment also in conjunction with the accompanying drawings, the technical solution of the utility model is further described in detail.
Embodiment:
Plastics feeder vacuum hopper as shown in Figure 1 has screen pack 2 above the hopper, loam cake is arranged above the screen pack, on covered air entry 1, there is material sucking port 3 side, and blanking port is arranged below.The utility model non-return valve 4 is installed in the material sucking port port of export.Non-return valve has check ring 41 and the check plate 42 of kink on the check ring, has on the check ring and places restrictions on the upper limit site of turning on the check plate.
As shown in Figure 2, during installation, check ring 41 is penetrated in the aperture of material sucking port 3 end peaks, welding penetrates check plate 42 in the check ring 41 again, promptly accuses assembling and finishes.
When motor was air-breathing from air entry 1, material sucking port 3 places were negative pressure, and the raw material in will the material pipe sucks in the hopper, and at this moment, check plate 42 will be in open mode under the effect of suction.Raw material also can be under the barrier effect of check plate 42, and is smaller to the impulse force of screen pack 2.When motor reversed, air entry 1 had air pressure at this moment and blows back, and screen pack 2 is cleaned.In this time, non-return valve 4 will be in closed condition under the double action of gravity and pressure, guarantee that raw material and air can not blow back from material sucking port 3, enter former hopper, just guarantee that also the dust in the raw material can not be blown into the workshop simultaneously.
Claims (3)
1. non-return valve that is used for vacuum hopper, it is characterized in that: the material sucking port at vacuum hopper is connected with non-return valve; Described non-return valve has check ring and the check plate of kink on the check ring; Described check ring is an opening, and an end is connected the material sucking port peak.
2. the non-return valve that is used for vacuum hopper according to claim 1 is characterized in that: described check plate shape and material sucking port cross section adapt, and area is slightly larger than the material sucking port cross-sectional area.
3. the non-return valve that is used for vacuum hopper according to claim 1 and 2 is characterized in that: described check ring is provided with upper limit site.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203142598U CN201587059U (en) | 2009-11-06 | 2009-11-06 | Check valve for vacuum hopper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203142598U CN201587059U (en) | 2009-11-06 | 2009-11-06 | Check valve for vacuum hopper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201587059U true CN201587059U (en) | 2010-09-22 |
Family
ID=42746826
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009203142598U Expired - Fee Related CN201587059U (en) | 2009-11-06 | 2009-11-06 | Check valve for vacuum hopper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201587059U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102275740A (en) * | 2011-05-13 | 2011-12-14 | 黄演洪 | Material suction machine and working method thereof |
| CN102489099A (en) * | 2011-11-22 | 2012-06-13 | 北京星和众工设备技术股份有限公司 | Deduster |
| CN104261008A (en) * | 2014-09-19 | 2015-01-07 | 无锡同心塑料制品有限公司 | Feeding device of foam plastic board production equipment |
| CN109373018A (en) * | 2018-12-12 | 2019-02-22 | 天津市联合环保工程设计有限公司 | A kind of gravity type negative pressure gas-liquid separating valve and application method |
| CN114435964A (en) * | 2022-03-08 | 2022-05-06 | 广东长信精密设备有限公司 | Particulate matter vacuum feeding device |
-
2009
- 2009-11-06 CN CN2009203142598U patent/CN201587059U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102275740A (en) * | 2011-05-13 | 2011-12-14 | 黄演洪 | Material suction machine and working method thereof |
| CN102489099A (en) * | 2011-11-22 | 2012-06-13 | 北京星和众工设备技术股份有限公司 | Deduster |
| CN104261008A (en) * | 2014-09-19 | 2015-01-07 | 无锡同心塑料制品有限公司 | Feeding device of foam plastic board production equipment |
| CN109373018A (en) * | 2018-12-12 | 2019-02-22 | 天津市联合环保工程设计有限公司 | A kind of gravity type negative pressure gas-liquid separating valve and application method |
| CN114435964A (en) * | 2022-03-08 | 2022-05-06 | 广东长信精密设备有限公司 | Particulate matter vacuum feeding device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100922 Termination date: 20171106 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |