CN102367825B - Reversing type impact air cylinder with built-in valve - Google Patents
Reversing type impact air cylinder with built-in valve Download PDFInfo
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- CN102367825B CN102367825B CN 201110345279 CN201110345279A CN102367825B CN 102367825 B CN102367825 B CN 102367825B CN 201110345279 CN201110345279 CN 201110345279 CN 201110345279 A CN201110345279 A CN 201110345279A CN 102367825 B CN102367825 B CN 102367825B
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Abstract
The invention relates to the technical field of pneumatic technologies and valves, in particular to a reversing type impact air cylinder with a built-in valve. The reversing type impact air cylinder comprises a cylinder barrel, a sealing piston, an upper middle cover, a lower middle cover and the built-in valve, wherein the upper middle cover, the lower middle cover and the sealing piston divide the cylinder barrel into an energy accumulation cavity, a front cavity and a rear cavity; the built-in valve is arranged between the upper middle cover and the lower middle cover and can be used for controlling on/off of an exhaust port of the rear cavity and an exhaust port of the energy accumulation cavity; the exhaust port of the energy accumulation cavity is arranged at one side the upper middle cover; and the exhaust port of the rear cavity is arranged at the other side between the upper middle cover and the lower middle cover and communicated with the atmosphere. The reversing type impact air cylinder provided by the invention has the main advantages that the double layers of middle covers as well as the built-in valve and the exhaust port of the rear cavity between the middle covers are designed on the basis of the common type impact air cylinder, so that not only air displacement and energy consumption can be reduced effectively, but also the working frequency can be provided to the impact air cylinder under the same air supply pressure.
Description
Technical field
The present invention relates to pneumatics and valve technology field, the concrete built-in valve formula of a kind of break-in that relates to blow cylinder.
Technical background
At present in the industrial production, blow cylinder is widely used in as various operations such as blanking, punching, fragmentation, dismounting, rapping, brake formings, because the accumulation of energy chamber of conventional impact cylinder and back cavity are directly by the spout conducting, can not effectively control the gas communication in each chamber, work cycle air consumption that gets off not only is big but also have problems such as frequency is lower.
Traditional blow cylinder has plain edition, three types on row's type and clamping piston type soon.As shown in Figure 1, the plain edition blow cylinder mainly is made up of cylinder barrel 103, packed-piston 105, bonnet 113, middle cover 104 and protecgulum 107, and middle cover 104 and packed-piston 105 are divided into accumulation of energy chamber 109, back cavity 111 and ante-chamber 112 with cylinder barrel 103; Sealing gasket during blow cylinder work on the packed-piston 105 seals spout 110, accumulation of energy chamber suction port 101 on the bonnet 113 holds gas for accumulation of energy chamber 109, when reaching a certain size, accumulation of energy chamber 109 pressure will promote packed-piston 105 and piston rod 108 is finished impact, ante-chamber porting 106 beginning air inlets when packed-piston 105 reaches end of travel, back cavity exhaust hole 102 begin to lose heart and order about packed-piston 105 backhauls and finish an impact cycle.Disclosed fast row's formula blow cylinder is to add that on the basis of common blow cylinder fast row mechanism forms in the document 1, play a role for improving frequency of impact, but because its complex structure, poor reliability is now seldom used.Clamping piston formula blow cylinder is in cylinder interior a clamping piston and a strike plunger that applies hitting power to be arranged.Owing to adopted this structural type, concerning the acceleration of hitting plunger, there is the slow and big problem of back pressure side exhaust resistance of air feed when hitting on the structure hardly, but clamping piston type blow cylinder is because the restriction of air pressure by compression, it is excessive that impact energy should not be done, and exist air consumption big, complex structure, problem such as reliability is low.
Characteristics and the application of document 1 blow cylinder. 01 phase of forging technology .1978.
Summary of the invention
It is few that technical problem to be solved by this invention is to propose a kind of air consumption at above-mentioned prior art, the built-in valve formula of the break-in that frequency is higher blow cylinder.
The present invention solves the problems of the technologies described above the technological scheme that adopts to be: the built-in valve formula of break-in blow cylinder, it is characterized in that: include cylinder barrel, packed-piston, middleupper cover, following middle cover and built-in valve, middleupper cover, following middle cover and packed-piston are divided into accumulation of energy chamber, ante-chamber and back cavity with cylinder barrel, built-in valve is arranged between middleupper cover and the following middle cover, can control the break-make of the relief opening in back cavity relief opening and accumulation of energy chamber, the relief opening in accumulation of energy chamber is arranged on a side of middleupper cover and the back cavity relief opening is arranged on the opposite side between middleupper cover and the following middle cover and communicates with atmosphere.
Press such scheme, the spool of described built-in valve be arranged between middleupper cover and the following middle cover and with the relief opening homonymy.
Press such scheme, described spool move up and down distance range spout by within the middleupper cover one side size.
Press such scheme, the interior spacing of the diameter of described back cavity relief opening and middleupper cover and following middle cover is consistent or reach unanimity.
Working principle of the present invention is: before system started working, blow cylinder was in reset mode, and the spool of built-in valve is isolated with accumulation of energy chamber and air passageways, and meanwhile packed-piston arrives the position of spout, and sealing gasket is with spout seal; Accumulation of energy chamber suction port begins supplied gas in the accumulation of energy chamber, when the pressure in accumulation of energy chamber reaches bleed pressure, makes the spool commutation, and blow cylinder is started working, and finishes the one-shot function; Cylinder is in the end of forward direction stroke, the commutation of external control selector valve, for the packed-piston backhaul is prepared, in the time of the commutation of external control selector valve, built-in valve also commutates, and this moment, the ante-chamber porting began to the ante-chamber air feed, packed-piston is under the compressed-air actuated effect of ante-chamber, reversion is to limit position, and the gas in the back cavity, is finished and resetted discharged to atmosphere by back cavity exhaust hole and back cavity relief opening.
Major advantage of the present invention is: built-in valve, back cavity relief opening between the basis of the plain edition blow cylinder double-deck middle cover of design and middle cover, not only can effectively reduce air displacement reduction amount consumption but also the frequency of okperation of blow cylinder can be provided under identical supply gas pressure.
Description of drawings
Fig. 1 is the structural representation of plain edition blow cylinder;
101 accumulation of energy chamber suction ports, 102 back cavity exhaust holes, 103 cylinder barrels, 104 middle covers, 105 packed-pistons, 106 ante-chamber portings, 107 protecgulums, 108 piston rods, 109 accumulation of energy chambeies, 110 spouts, 111 back cavities, 112 ante-chambers; 113 bonnets;
Fig. 2 is structural representation of the present invention;
1 bonnet, 2 cylinder barrels, 3 accumulation of energy chambeies, 4 middleupper covers, 5 back cavity relief openings, 6 back cavity exhaust holes, 7 packed-pistons, 8 protecgulums, 9 piston rods, 10 ante-chamber portings, 11 ante-chambers, 12 sealing gaskets, 13 back cavities, 14 times middle covers, 15 spouts, 16 built-in valves, 17 relief openings, 18 spools, 19 accumulation of energy chamber suction ports;
Fig. 3 is the phase diagram in different operating stage; Wherein, Fig. 3 (a) expression is held gas section-packed-piston and is retreated to end and seal the spout spool and close relief opening, and source of the gas is to accumulation of energy chamber air feed; Fig. 3 (b) expression impact section-spool commutation is opened the relief opening packed-piston and is left spout, accumulation of energy chamber and back cavity conducting, and the ante-chamber porting begins to lose heart, and source of the gas is to accumulation of energy chamber air feed; Fig. 3 (c) expression turning point-piston walks to end, and external control selector valve and built-in valve core all begin commutation prepares for backhaul, and source of the gas is to accumulation of energy chamber air feed; The backhaul of relief opening packed-piston is closed in Fig. 3 (d) expression backhaul section-spool commutation, and the ante-chamber porting begins air inlet, and the back cavity relief opening begins exhaust, and source of the gas is to accumulation of energy chamber air feed;
Fig. 4 is the built-in valve formula of break-in blow cylinder workflow diagram.
Embodiment
The present invention will be further described in detail below in conjunction with accompanying drawing.
As Fig. 2, the built-in valve formula of break-in blow cylinder, include cylinder barrel 2, packed-piston 7, middleupper cover 4, following middle cover 14 and built-in valve 16, middleupper cover 4, following middle cover 14 and packed-piston 7 are divided into accumulation of energy chamber 3 with cylinder barrel 2, ante-chamber 11 and back cavity 13, built-in valve 16 is arranged between middleupper cover 4 and the following middle cover 14, can control the break-make of the relief opening 17 in back cavity relief opening 5 and accumulation of energy chamber, the relief opening 17 in accumulation of energy chamber is arranged on a side of middleupper cover 4 and back cavity relief opening 5 is arranged on the opposite side between middleupper cover 4 and the following middle cover 14 and communicates with atmosphere, the spool 18 of described built-in valve 16 be arranged between middleupper cover 4 and the following middle cover 14 and with relief opening 17 homonymies, described spool 18 move up and down distance range spout 15 by within the middleupper cover 4 one side sizes, the diameter of described back cavity relief opening 5 is consistent with middleupper cover 4 and following middle cover 14 interior spacings or reach unanimity.
With reference to Fig. 2 and Fig. 3, before system starts working, it is that sealing gasket 12 on the packed-piston 7 seals down the spout 15 on the middle cover 14 that blow cylinder is in reset mode, the spool 18 of built-in valve 16 is closed the relief opening 17 on the middleupper cover 4, source of the gas via the accumulation of energy chamber suction port 19 on the bonnet 1 to accumulation of energy chamber 3 air feed.When the pressure in accumulation of energy chamber 3 reaches bleed pressure, make spool 18 commutations, when packed-piston 7 pressure at both sides reach balance, packed-piston 7 leaves spout 15, this moment accumulation of energy chamber 3 and back cavity 13 conductings, ante-chamber porting 10 beginning exhausts on the protecgulum 8, blow cylinder is started working, and finishes the one-shot function.Cylinder is in the end of forward direction stroke, the commutation of external control selector valve, and for packed-piston 7 backhauls are prepared, in the time of the commutation of external control selector valve, the spool 18 of built-in valve 16 also commutates.At this moment, packed-piston 7 backhauls are ordered about in the 10 beginning air inlets of ante-chamber porting, the back cavity relief opening 5 that the pressurized air of ante-chamber 11 provides via built-in valve 16 and back cavity exhaust hole 6 are directly discharged to atmosphere, the 3 constant volumes inflation of accumulation of energy chamber, be impact process accumulation of energy next time, packed-piston 7 is under the compressed-air actuated effect of ante-chamber, and reversion is to limit position, finishes to reset.Whole impact process packed-piston 7 is finished in cylinder barrel 2, after piston rod 9 resets, repeats above-mentioned flow process, and whole workflow is with reference to shown in Figure 4.
Claims (4)
1. the built-in valve formula of break-in blow cylinder, it is characterized in that: include cylinder barrel (2), packed-piston (7), middleupper cover (4), following middle cover (14) and built-in valve (16), middleupper cover (4), following middle cover (14) and packed-piston (7) are divided into accumulation of energy chamber (3) with cylinder barrel (2), ante-chamber (11) and back cavity (13), built-in valve (16) is arranged between middleupper cover (4) and the following middle cover (14), can control the break-make of the relief opening (17) of back cavity relief opening (5) and accumulation of energy chamber (3), the relief opening (17) of accumulation of energy chamber (3) is arranged on a side of middleupper cover (4) and back cavity relief opening (5) is arranged on the opposite side between middleupper cover (4) and the following middle cover (14) and communicates with atmosphere.
2. by the built-in valve formula of the described break-in of claim 1 blow cylinder, the spool (18) that it is characterized in that described built-in valve (16) be arranged between middleupper cover (4) and the following middle cover (14) and with relief opening (17) homonymy of accumulation of energy chamber (3).
3. by the built-in valve formula of the described break-in of claim 2 blow cylinder, it is characterized in that described spool (18) move up and down distance range spout (15) by within middleupper cover (4) the one side sizes, cover during described spout is arranged on down.
4. by claim 1 or the built-in valve formula of 2 described break-ins blow cylinder, it is characterized in that the diameter of described back cavity relief opening (5) is consistent with middleupper cover (4) and the interior spacing of following middle cover (14) or reach unanimity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110345279 CN102367825B (en) | 2011-11-04 | 2011-11-04 | Reversing type impact air cylinder with built-in valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110345279 CN102367825B (en) | 2011-11-04 | 2011-11-04 | Reversing type impact air cylinder with built-in valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102367825A CN102367825A (en) | 2012-03-07 |
| CN102367825B true CN102367825B (en) | 2013-07-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110345279 Expired - Fee Related CN102367825B (en) | 2011-11-04 | 2011-11-04 | Reversing type impact air cylinder with built-in valve |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103216493A (en) * | 2013-04-25 | 2013-07-24 | 长沙理工大学 | Piston air chamber buffering slow-release cavity arranged on oil cylinder head |
| CN103321985B (en) * | 2013-05-31 | 2015-09-30 | 武汉软件工程职业学院 | bidirectional impact cylinder |
| CN103712767A (en) * | 2014-01-07 | 2014-04-09 | 北京卫星环境工程研究所 | Pneumatic device for pneumatic type horizontal impact table |
| CN105736513A (en) * | 2016-04-26 | 2016-07-06 | 苏州普来可瑞机电技术有限公司 | Cylinder block moving type single-action low-noise energy-saving impact cylinder |
| CN106918435B (en) * | 2017-04-21 | 2023-04-07 | 中国空气动力研究与发展中心高速空气动力研究所 | Integrated impact cylinder device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3447424A (en) * | 1967-09-19 | 1969-06-03 | Billings R O | Hydraulic cylinders having a quick exhaust |
| US20020117051A1 (en) * | 2001-02-23 | 2002-08-29 | Smc Corporation | Workpiece high-speed pressurizing method and machanism by using cylinder with cushioning mechanism |
| CN2937643Y (en) * | 2007-02-07 | 2007-08-22 | 崔惠美 | Cylinder device |
| CN201003523Y (en) * | 2007-02-02 | 2008-01-09 | 周宝明 | Combined cylinder |
-
2011
- 2011-11-04 CN CN 201110345279 patent/CN102367825B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3447424A (en) * | 1967-09-19 | 1969-06-03 | Billings R O | Hydraulic cylinders having a quick exhaust |
| US20020117051A1 (en) * | 2001-02-23 | 2002-08-29 | Smc Corporation | Workpiece high-speed pressurizing method and machanism by using cylinder with cushioning mechanism |
| CN201003523Y (en) * | 2007-02-02 | 2008-01-09 | 周宝明 | Combined cylinder |
| CN2937643Y (en) * | 2007-02-07 | 2007-08-22 | 崔惠美 | Cylinder device |
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| CN102367825A (en) | 2012-03-07 |
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