CN201672094U - Positive/negative air pressure changeover valve - Google Patents
Positive/negative air pressure changeover valve Download PDFInfo
- Publication number
- CN201672094U CN201672094U CN2010201940948U CN201020194094U CN201672094U CN 201672094 U CN201672094 U CN 201672094U CN 2010201940948 U CN2010201940948 U CN 2010201940948U CN 201020194094 U CN201020194094 U CN 201020194094U CN 201672094 U CN201672094 U CN 201672094U
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- valve
- positive
- hollow shaft
- air
- valve body
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- Expired - Fee Related
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- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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Abstract
The utility model discloses a positive/negative air pressure changeover valve, which is applied to a paper-feeding mechanism of a printing machine. The positive/negative air pressure changeover valve comprises a valve and a valve body which are arranged on a hollow shaft, the valve is fixed with the hollow shaft, and is provided with an air channel communicated with the central hole of the valve, the air channel is communicated with the cavity of the hollow shaft, the valve body is provided with a suction hole and an exhaust hole, the suction hole is connected with a suction tube union, wherein the exhaust end of the exhaust hole is connected with a blast tube union. The positive/negative air pressure changeover valve can quickly separate paper from a suction nozzle on a catching wheel or a sorting wheel.
Description
Technical field
The utility model relates to a kind of valve, refers to a kind of positive and negative air-pressure changing valve especially.
Background technique
Taking the used air valve of page machine at present all takes turns coaxial installation with hook page or leaf wheel or paging and rotates, air valve comprises valve and the valve body that is fixedly installed on the hollow shaft, valve is provided with the air drain that communicates with the valve center hole, air drain communicates with the hollow shaft inner chamber, valve body is provided with suction port and vent hole, when the air drain of valve turns to when communicating with the suction port of valve body with hollow shaft, just form vacuum in the suction nozzle gas circuit of hook page or leaf wheel and paging wheel, suction nozzle is inhaled page; Stagger mutually when communicating with the vent hole of valve body then when the air drain of valve turns to the suction port of valve body, the vacuum in the suction nozzle gas circuit is destroyed, and suction nozzle just bleeds off paper.But because residual air exists in the loop, the vacuum in the gas circuit is not destroyed fully, and paper can not in time separate with suction nozzle, and particularly to thin and light paper, though air-breathing stopping, paper still is adsorbed on the two-wheeled, causes putting the paper time lag.
The model utility content
The purpose of this utility model is to provide a kind of positive and negative air-pressure changing valve, and its suction nozzle that paper and hook page or leaf wheel or paging are taken turns separates fast.
To achieve these goals, technical solution of the present utility model is: a kind of positive and negative air-pressure changing valve, comprise valve and the valve body be located on the hollow shaft, described valve and hollow shaft are fixed, described valve is provided with the air drain that communicates with the valve center hole, and described air drain communicates with the hollow shaft inner chamber, and described valve body is provided with suction port and vent hole, be connected with Air suction pipe joint on the described suction port, the outlet side of wherein said vent hole connects the gas blow pipe joint.
The utility model positive and negative air-pressure changing valve, wherein said suction port and vent hole are respectively L shaped through hole or Z-shaped through hole.
The utility model positive and negative air-pressure changing valve, wherein said valve body top is connected and fixed by the bearing support top on L shaped connecting plate and the hollow shaft, is connected with retaining in the bearing between described valve body and the bearing support.
After adopting such scheme, the utility model positive and negative air-pressure changing valve is by being provided with vent hole on valve body, be connected with the external pressure source by the gas blow pipe joint on the vent hole, make the suction nozzle that the hook page or leaf of installing on air cavity, hollow shaft and the hollow shaft that forms between external pressure source, gas blow pipe joint, valve air drain and the valve body is taken turns or paging is taken turns form a loop gas circuit, produce malleation in the loop, suction nozzle on hook page or leaf wheel or the paging wheel is blown, and paper is separated fast with suction nozzle.
Description of drawings
Fig. 1 is the utility model positive and negative air-pressure changing valve embodiment's a plan view;
Fig. 2 is that cross-sectional schematic is looked on the right side of the utility model positive and negative air-pressure changing valve;
Fig. 3 is the plan view of the utility model positive and negative air-pressure changing valve embodiment's action one;
Fig. 4 is the plan view of the utility model positive and negative air-pressure changing valve embodiment's action two.
Below in conjunction with accompanying drawing, the utility model is described further by embodiment;
Embodiment
See also Figure 1 and Figure 2, the utility model positive and negative air-pressure changing valve comprises valve 1 and the valve body of being located on the hollow shaft 2, valve 1 is fixed together with hollow shaft, valve body 2 tops are connected and fixed by bearing support 6 tops on L shaped connecting plate 5 and the hollow shaft, are connected with retaining 7 in the bearing between valve body 2 and the bearing support 6.
Valve 1 is provided with the air drain 11 that communicates with valve 1 center hole, air drain 11 communicates with the hollow shaft inner chamber, valve body 2 is provided with the suction port 21 of L shaped through hole and the vent hole 22 of L shaped through hole, be connected with the Air suction pipe joint 4 that is connected with the air pump (not shown) on the suction port 21, the outlet side of vent hole 22 is bolted with the gas blow pipe joint 3 that is connected with the air pump (not shown).
In conjunction with shown in Figure 3, when valve 1 rotates, when air drain 11 being turned to communicate with the suction port 21 of valve body 2, hook page or leaf wheel that is connected on air cavity, hollow shaft and the hollow shaft that forms between air pump, Air suction pipe joint 4, valve air drain 11 and the valve body 2 or the suction nozzle on the paging wheel are formed a loop gas circuit, form vacuum in the loop, make the adsorbable paper of suction nozzle of hook page or leaf wheel or paging wheel.
In conjunction with shown in Figure 4, when valve 1 rotates, air drain 11 is turned to the suction port 21 of valve body 2 to be staggered when communicating with the vent hole 22 of valve body 2 then mutually, hook page or leaf wheel that is connected on air cavity, hollow shaft and the hollow shaft that forms between air pump, gas blow pipe joint 3, valve air drain 11 and the valve body 2 or the suction nozzle on the paging wheel are formed a loop gas circuit, produce malleation in the loop, suction nozzle on hook page or leaf wheel or the paging wheel is blown, and paper is separated fast with suction nozzle.
The above embodiment is described preferred implementation of the present utility model; be not that scope of the present utility model is limited; under the prerequisite that does not break away from the utility model design spirit; various distortion and improvement that the common engineers and technicians in related domain make the technical solution of the utility model all should fall in the definite protection domain of claims of the present utility model.
Claims (3)
1. positive and negative air-pressure changing valve, comprise valve (1) and the valve body (2) be located on the hollow shaft, described valve (1) is fixed with hollow shaft, described valve (1) is provided with the air drain (11) that communicates with valve (1) center hole, described air drain (11) communicates with the hollow shaft inner chamber, described valve body (2) is provided with suction port (21) and vent hole (22), is connected with Air suction pipe joint (4) on the described suction port (21), it is characterized in that: the outlet side of described vent hole (22) connects gas blow pipe joint (3).
2. positive and negative air-pressure changing valve as claimed in claim 1 is characterized in that: described suction port (21) and vent hole (22) are respectively L shaped through hole or Z-shaped through hole.
3. positive and negative air-pressure changing valve as claimed in claim 2, it is characterized in that: described valve body (2) top is connected and fixed by bearing support (6) top on L shaped connecting plate (5) and the hollow shaft, is connected with retaining (7) in the bearing between described valve body (2) and the bearing support (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201940948U CN201672094U (en) | 2010-05-18 | 2010-05-18 | Positive/negative air pressure changeover valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201940948U CN201672094U (en) | 2010-05-18 | 2010-05-18 | Positive/negative air pressure changeover valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201672094U true CN201672094U (en) | 2010-12-15 |
Family
ID=43329506
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201940948U Expired - Fee Related CN201672094U (en) | 2010-05-18 | 2010-05-18 | Positive/negative air pressure changeover valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201672094U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104590928A (en) * | 2014-12-31 | 2015-05-06 | 安徽华印机电股份有限公司 | Air blowing and paging device for page taking machine |
| CN110529625A (en) * | 2019-09-09 | 2019-12-03 | 苏州希瑞格机器人科技有限公司 | A kind of powerful switching valve |
-
2010
- 2010-05-18 CN CN2010201940948U patent/CN201672094U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104590928A (en) * | 2014-12-31 | 2015-05-06 | 安徽华印机电股份有限公司 | Air blowing and paging device for page taking machine |
| CN110529625A (en) * | 2019-09-09 | 2019-12-03 | 苏州希瑞格机器人科技有限公司 | A kind of powerful switching valve |
| CN110529625B (en) * | 2019-09-09 | 2024-04-09 | 苏州希瑞格机器人科技有限公司 | Strong switching valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: ANHUI PRINTING MECHANICAL AND ELECTRICAL CO., LTD. Free format text: FORMER NAME: HUAINAN OPTICAL FIBER + WIRE CABLE CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 232008, Anhui, Huainan province National Road East Economic and Technological Development Zone Patentee after: ANHUI PRINTING MECHANICAL AND ELECTRICAL CO., LTD. Address before: 232008, Anhui, Huainan province National Road East Economic and Technological Development Zone Patentee before: Huainan GHGS Machinery & Electronics Co.,Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101215 Termination date: 20160518 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |