CN102001177A - Sealing tensile cylinder - Google Patents
Sealing tensile cylinder Download PDFInfo
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- CN102001177A CN102001177A CN2010105029510A CN201010502951A CN102001177A CN 102001177 A CN102001177 A CN 102001177A CN 2010105029510 A CN2010105029510 A CN 2010105029510A CN 201010502951 A CN201010502951 A CN 201010502951A CN 102001177 A CN102001177 A CN 102001177A
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Abstract
The invention discloses a sealing tensile cylinder which comprises a sealing cylinder and a tensile cylinder, wherein the sealing cylinder comprises a shared end cover, a front end cover, a sealing cylinder barrel for connecting the shared end cover and the front end cover and a sealing piston rod which is embedded into the shared end cover and penetrates through the front end cover; a sealing piston which is sleeved on the sealing piston rod is also arranged in the cylinder barrel; and the sealing piston rod is a hollow concentric double-shaft piston rod, and the shaft head end of the concentric double-shaft piston rod is provided with a dual seal ring. The sealing piston rod is changed from a single shaft to double shafts, the guide sleeve length of the piston rod is increased, the action of the piston rod is more stable, and the radial jump of the piston rod is reduced. The gas consumption of the sealing cylinder is reduced, and the action speed of the cylinder is higher. The shaft head end of the double-shaft piston rod of the sealing cylinder is provided with the dual seal ring which can replace a sealing head of the common sealing tensile cylinder, i.e. the sealing head is not installed, thereby the cost of products is reduced.
Description
Technical field
The invention belongs to the pneumatics field, relate in particular to a kind of draft cylinder that seals that is applied on the bottle blowing machine.
Background technology
Sealing draft cylinder is made up of sealing cylinder and the shared end cap string dress of draft cylinder.Prior art seal draft cylinder as shown in Figure 1, its draft cylinder comprises the stretching cylinder barrel of shared end cap, rear end cap, the shared end cap of connection and rear end cap, in the piston rod of sealing cylinder by and the stretching twin shaft piston rod of socket stretching piston.Described sealing cylinder comprises sealing cylinder barrel, embed shared end cap and pass sealing piston rod, also being provided with and being socketed in the piston that seals that seals on the piston rod of drive end bearing bracket in cylinder barrel of shared end cap, drive end bearing bracket, the shared end cap of connection and drive end bearing bracket, the drive end bearing bracket of the rear end cap of described draft cylinder, shared end cap, sealing cylinder is equipped with gas port, and the gas port of described shared end cap is two.Sealing cylinder single shaft piston rod head end is connected with sealing device head, and sealing device head is provided with a gas port.When compressed air entered the sealing cylinder back cavity by the shared end cap of sealing cylinder, sealing cylinder single shaft piston rod stretched out; Otherwise when compressed air entered the sealing cylinder ante-chamber by the sealing cylinder drive end bearing bracket, sealing cylinder single shaft piston rod was return.Equally, when compressed air entered the draft cylinder back cavity by the draft cylinder rear end cap, draft cylinder twin shaft piston rod stretched out; Otherwise when compressed air entered the draft cylinder ante-chamber by the shared end cap of draft cylinder, draft cylinder twin shaft piston rod was return.According to sealing the instructions for use of draft cylinder on bottle blowing machine, need connect a high-pressure air pipe at the gas port on the sealing cylinder single shaft piston rod head end sealing device head.When the cylinder high-frequency high-speed moved, sealing cylinder single shaft piston rod can be with the high-pressure air pipe action, and the high-pressure air pipe joint returns easily and gets loose.Simultaneously, when sealing cylinder single shaft piston rod stretch out seal after, the high-pressure air pipe air inlet can produce a deboost, the influence sealing property of sealing.
Summary of the invention
At above-mentioned technological deficiency, the technical issues that need to address of the present invention are the positions that change the high pressure gas port, prevent from that the high-pressure air pipe joint from returning to get loose; Improve the sealing property of sealing.
For solving the problems of the technologies described above, technical scheme provided by the invention is: a kind of draft cylinder that seals, form by sealing cylinder and draft cylinder, described sealing cylinder comprises sealing cylinder barrel, embed shared end cap and pass sealing piston rod, also being provided with and being socketed in the piston that seals that seals on the piston rod of drive end bearing bracket in cylinder barrel of shared end cap, drive end bearing bracket, the shared end cap of connection and drive end bearing bracket, describedly seal the concentric twin shaft piston rod that piston rod is a hollow, and be provided with the dual-seal circle at the spindle nose end of twin shaft piston rod with one heart.
Further: seal in the draft cylinder above-mentioned, described draft cylinder comprises common terminal cover back-end lid, connects the stretching cylinder barrel of shared end cap and rear end cap, in the piston rod of sealing cylinder by and the stretching twin shaft piston rod of socket stretching piston.The drive end bearing bracket of the rear end cap of described draft cylinder, shared end cap, sealing cylinder is equipped with gas port, and the gas port of described shared end cap is two.Described common terminal covers and also is provided with the high pressure gas air inlet.
Compared with prior art, seal in the draft cylinder, describedly seal the concentric twin shaft piston rod that piston rod is a hollow, and be provided with the dual-seal circle at the spindle nose end of twin shaft piston rod with one heart above-mentioned.Seal piston rod and change twin shaft into, increased the guide pin bushing length of piston rod, make the piston rod action more stable, reduced the circular runout of piston rod by single shaft.The air consumption of sealing cylinder is reduced, make the speed of cylinder action faster.Sealing cylinder twin shaft piston rod head end is equipped with the dual-seal circle, can replace common sealing device head of sealing draft cylinder, promptly need not refill sealing device head, has reduced product cost.Cover in common terminal and to be provided with a high pressure admission mouth, after connecting high-pressure air pipe, high pressure air gas port thus enters, flow into mould cavity by hollow sealing in the twin shaft piston rod again, whole sealing cylinder action, the high-pressure air pipe joint is had no effect, removed the high-pressure air pipe joint fully and returned the problem that gets loose.Simultaneously, after sealing cylinder was sealed die orifice, the air inlet of high pressure gas port can produce a thrust to sealing cylinder twin shaft piston rod, made the sealing effectiveness of dual-seal circle of sealing cylinder twin shaft piston rod head end more reliable.Avoided the problem of high pressure gas fully to the deboost that seals piston rod and produce.So this seals, and the draft cylinder cost is lower, safe and reliable, sealing property is better.
Description of drawings
Fig. 1 is the complete section structural representation that seals draft cylinder of prior art;
Fig. 2 is the complete section structural representation that seals draft cylinder of the present invention;
Wherein 1 shared end cap, 2 drive end bearing brackets, 3 seal the piston rod, 5 that cylinder barrel, 4 seals and seal piston, 6 dual-seal circles, 7 rear end caps, 8 stretching cylinder barrels, 9 stretching pistons, 10 stretching twin shaft piston rods, 11 gas ports, 12 high pressure gas air inlets, 13 sealing device head.
The specific embodiment
Below in conjunction with accompanying drawing the present invention is invented in further detail and to describe.Illustrated each parts of the present invention and connection thereof and position to concern among the figure.
With reference to Fig. 1: prior art is sealed draft cylinder, and its draft cylinder comprises shared end cap 1, rear end cap 7, connects the stretching cylinder barrel 8 of shared end cap 1 and rear end cap 7, in the piston rod 4 that seals by and the stretching twin shaft piston rod 10 of socket stretching piston 9.Sealing cylinder comprises shared end cap 1, drive end bearing bracket 2, connect sealing cylinder barrel 3, embed shared end cap 1 and pass sealing piston rod 4, also not being socketed in to seal and sealing piston 5 on the piston rod 4 of drive end bearing bracket in cylinder barrel 3 of shared end cap 1 and drive end bearing bracket 2, the front end that seals piston rod 4 is provided with sealing device head 13, and sealing piston rod 4 is single shafts.The gas port 11 of setting the rear end cap of draft cylinder is that two gas ports of D gas port, shared end cap are respectively that the gas port of the drive end bearing bracket of A gas port and E gas port, sealing cylinder is the B gas port, it is the C gas port that sealing device head is provided with the high pressure gas port, when compressed air enters the sealing cylinder back cavity by the A gas port of the shared end cap of sealing cylinder, seal piston rod 4 and stretch out; Otherwise, when compressed air enters the sealing cylinder ante-chamber by sealing cylinder front end cover B gas port, seal piston rod 4 and return.Equally, when compressed air entered the draft cylinder back cavity by draft cylinder rear end cap D gas port, draft cylinder twin shaft piston rod 10 stretched out; Otherwise when compressed air entered the draft cylinder ante-chamber by the shared end cap E of draft cylinder gas port, draft cylinder twin shaft piston rod 10 was return.According to sealing the instructions for use of draft cylinder on bottle blowing machine, need connect a high-pressure air pipe at the gas port C that seals on the piston rod 4 spindle nose end closure heads 13.When the cylinder high-frequency high-speed moves, seal piston rod 4 and can be with the high-pressure air pipe action, the high-pressure air pipe joint returns easily and gets loose.Simultaneously, when seal piston rod 4 stretch out seal after, the high-pressure air pipe air inlet can produce a deboost, the influence sealing property of sealing.
With reference to Fig. 2: the draft cylinder that seals of the present invention, form by sealing cylinder and draft cylinder, described sealing cylinder comprises shared end cap 1, drive end bearing bracket 2, connect sealing cylinder barrel 3, embed shared end cap 1 and pass sealing piston rod 4, also being provided with to be socketed in to seal and sealing piston 5 on the piston rod 4 of drive end bearing bracket in cylinder barrel 3 of shared end cap 1 and drive end bearing bracket 2, describedly seal the concentric twin shaft piston rod that piston rod 4 is a hollow, and be provided with dual-seal circle 6 at the spindle nose end of twin shaft piston rod with one heart.Described draft cylinder comprises shared end cap 1, rear end cap 7, connects the stretching cylinder barrel 8 of shared end cap 1 and rear end cap 7, in the piston rod 4 of sealing cylinder by and the stretching twin shaft piston rod 10 of socket stretching piston 9.The drive end bearing bracket 2 of the rear end cap 7 of described draft cylinder, shared end cap 1, sealing cylinder is equipped with gas port 11, and the gas port of described shared end cap 1 is two.Also be provided with high pressure gas air inlet 12 on the described shared end cap 1.The gas port 11 of setting the rear end cap of draft cylinder is that two gas ports of D gas port, shared end cap are respectively that the gas port of the drive end bearing bracket of A gas port and E gas port, sealing cylinder is the B gas port, it is the C gas port that total end cap 1 is provided with the high pressure gas port, when the air inlet of the compressed air A of elder generation gas port, the exhaust of B gas port, seal piston rod 4 and stretch out, afterwards, the air inlet simultaneously of C high pressure gas port and D gas port, the exhaust of E gas port, draft cylinder twin shaft piston rod 10 stretches out.Reset: the air inlet of first E gas port, the exhaust of D gas port, draft cylinder twin shaft piston rod withdrawal 10, afterwards, and the exhaust of C high pressure gas port, last, the air inlet of B gas port, piston rod 4 withdrawals are sealed in the exhaust of A gas port.Seal piston rod 4 and change twin shaft into, increased the guide pin bushing length of piston rod, make piston rod 4 actions more stable, reduced the circular runout of piston rod 4 by single shaft.The air consumption of sealing cylinder is reduced, make the speed of cylinder action faster.Seal piston rod 4 spindle nose ends dual-seal circle 6 is housed, can replace common sealing device head of sealing draft cylinder, promptly need not refill sealing device head 13, reduced product cost.On shared end cap 1, be provided with a high pressure admission mouth, after connecting high-pressure air pipe, high pressure air gas port thus enters, flow into mould cavity by hollow sealing in the twin shaft piston rod again, whole sealing cylinder action, the high-pressure air pipe joint is had no effect, removed the high-pressure air pipe joint fully and returned the problem that gets loose.Simultaneously, after sealing cylinder was sealed die orifice, the air inlet of high pressure gas port can produce a thrust to sealing cylinder twin shaft piston rod, made the sealing effectiveness of dual-seal circle of sealing cylinder twin shaft piston rod head end more reliable.Avoided the problem of high pressure gas fully to the deboost that seals piston rod and produce.
The above is a preferred embodiment of the present invention, and under the situation that does not break away from inventive concept of the present invention, any conspicuous distortion and the replacement carried out all belong within the protection domain of the present invention.
Claims (4)
1. one kind is sealed draft cylinder, form by sealing cylinder and draft cylinder,
Described sealing cylinder comprises shared end cap (1), drive end bearing bracket (2), connect sealing cylinder barrel (3), embed shared end cap (1) and pass sealing piston rod (4), also being provided with to be socketed in to seal and sealing piston (5) on the piston rod (4) of drive end bearing bracket (2) in cylinder barrel (3) of shared end cap (1) and drive end bearing bracket (2), it is characterized in that: describedly seal the concentric twin shaft piston rod that piston rod (4) is a hollow, and be provided with dual-seal circle (6) at the spindle nose end of twin shaft piston rod with one heart.
2. ask the 1 described draft cylinder that seals according to right, it is characterized in that: described draft cylinder comprises shared end cap (1), rear end cap (7), connects the stretching cylinder barrel (8) of shared end cap (1) and rear end cap (7), in the piston rod (4) that seals by and the stretching twin shaft piston rod (10) of socket stretching piston (9).
3. ask the 2 described draft cylinders that seal according to right, it is characterized in that: the drive end bearing bracket (2) of the rear end cap of described draft cylinder (7), shared end cap (1), sealing cylinder is equipped with gas port (11), and the gas port of described shared end cap (1) is two.
4. according to any described draft cylinder that seals among the claim 1-3, it is characterized in that, also be provided with high pressure gas air inlet (12) on the described shared end cap (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010502951 CN102001177B (en) | 2010-09-30 | 2010-09-30 | Sealing tensile cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010502951 CN102001177B (en) | 2010-09-30 | 2010-09-30 | Sealing tensile cylinder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102001177A true CN102001177A (en) | 2011-04-06 |
| CN102001177B CN102001177B (en) | 2013-05-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010502951 Active CN102001177B (en) | 2010-09-30 | 2010-09-30 | Sealing tensile cylinder |
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| Country | Link |
|---|---|
| CN (1) | CN102001177B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102285097A (en) * | 2011-05-30 | 2011-12-21 | 江苏新美星包装机械有限公司 | Air source structure for sealing cylinder of bottle blowing machine |
| CN104963909A (en) * | 2015-05-29 | 2015-10-07 | 江苏新美星包装机械股份有限公司 | Bottle blowing machine seal cylinder |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1386624A (en) * | 2001-05-18 | 2002-12-25 | 柯福友 | Combined pull-blowing cylinder mechanism for plastic pull-blowing shaper |
| US20050127025A1 (en) * | 2003-12-12 | 2005-06-16 | Graham Packaging Company L.P. | Blow cylinder with fluid cushion |
| CN200960723Y (en) * | 2006-09-26 | 2007-10-17 | 汪祥建 | Stretching cylinder stopping device and series sealing cylinder |
| CN201338382Y (en) * | 2008-12-30 | 2009-11-04 | 张洪民 | Sealed stretching cylinder |
| CN201761064U (en) * | 2010-09-30 | 2011-03-16 | 肇庆市志成气动有限公司 | Seal stretching cylinder |
-
2010
- 2010-09-30 CN CN 201010502951 patent/CN102001177B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1386624A (en) * | 2001-05-18 | 2002-12-25 | 柯福友 | Combined pull-blowing cylinder mechanism for plastic pull-blowing shaper |
| US20050127025A1 (en) * | 2003-12-12 | 2005-06-16 | Graham Packaging Company L.P. | Blow cylinder with fluid cushion |
| CN200960723Y (en) * | 2006-09-26 | 2007-10-17 | 汪祥建 | Stretching cylinder stopping device and series sealing cylinder |
| CN201338382Y (en) * | 2008-12-30 | 2009-11-04 | 张洪民 | Sealed stretching cylinder |
| CN201761064U (en) * | 2010-09-30 | 2011-03-16 | 肇庆市志成气动有限公司 | Seal stretching cylinder |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102285097A (en) * | 2011-05-30 | 2011-12-21 | 江苏新美星包装机械有限公司 | Air source structure for sealing cylinder of bottle blowing machine |
| CN104963909A (en) * | 2015-05-29 | 2015-10-07 | 江苏新美星包装机械股份有限公司 | Bottle blowing machine seal cylinder |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102001177B (en) | 2013-05-29 |
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