CN104047921A - Pressure-multiplying air cylinder - Google Patents

Pressure-multiplying air cylinder Download PDF

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Publication number
CN104047921A
CN104047921A CN201410210947.5A CN201410210947A CN104047921A CN 104047921 A CN104047921 A CN 104047921A CN 201410210947 A CN201410210947 A CN 201410210947A CN 104047921 A CN104047921 A CN 104047921A
Authority
CN
China
Prior art keywords
piston rod
cylinder
air
pressure
dividing plate
Prior art date
Application number
CN201410210947.5A
Other languages
Chinese (zh)
Inventor
沈坚
Original Assignee
苏州好特斯模具有限公司
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 苏州好特斯模具有限公司 filed Critical 苏州好特斯模具有限公司
Priority to CN201410210947.5A priority Critical patent/CN104047921A/en
Publication of CN104047921A publication Critical patent/CN104047921A/en

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Abstract

The invention discloses a pressure-multiplying air cylinder, which comprises a cylinder body, a piston rod and a clapboard, wherein the clapboard and the inner wall of the middle part of the cylinder body are integrated; the piston rod is arranged in the cylinder body and is matched with the clapboard to form two air chambers; the two air chambers form double pushing force to push the piston rod towards the same direction. According to the pressure-multiplying air cylinder, the piston rod is arranged in the cylinder body and is matched with the clapboard to form the two air chambers, air pressure respectively acts on end faces of the piston rod located in the air chambers, and the air pressure in the two air chambers push the piston rod to move towards one direction, so that the stress area and the pressure of the piston rod are doubled, the pushing force of a valve needle is doubled under the condition that the installation dimension of the air cylinder is unchanged, and the problem that a glue mouth part cannot seal glue since the pressure of the air cylinder is insufficient and the piston rod cannot push the valve needle is solved.

Description

A kind of times of air cylinder

Technical field

The present invention relates to a kind of cylinder, relate in particular to a kind of times of air cylinder, belong to mechanical equipment technical field.

Background technique

Existing cylinder, as shown in Figure 1, structurally only has an air chamber 4, in the large-scale product of injection moulding, because the volume of cylinder interior air chamber 4 is fixed, the lifting surface area of piston rod 2 is also fixed, in the time of in air pressure is delivered to cylinder, due to air chamber 4 volumes and piston rod 2 lifting surface areas certain, the pressure that flows to piston rod 2 there will be the inadequate situation of pressure, thereby cause piston rod 2 to push away motionless needle, make the Jiao Kou place envelope of moulding not live glue.

Summary of the invention

Technical problem for above-mentioned existence, the object of the invention is: proposed a kind of can be in the situation that cylinder installation dimension be constant, increase needle thrust, solve times air cylinder that Jiao Kou place envelope does not live glue.

Technical solution of the present invention is achieved in that a kind of times of air cylinder, comprises cylinder body, piston rod, also comprises dividing plate; Described dividing plate and cylinder body middle part inwall are made as one; Described piston rod be arranged on cylinder interior and with two air chambers of dividing plate mix proportion; Described two air chambers form double thrust piston rod are promoted toward same direction.

Preferably, described piston rod middle part is provided with circular groove; Described piston rod afterbody and inboard wall of cylinder block form an air chamber; Described piston rod middle part circular groove and dividing plate form another air chamber.

Preferably, described piston rod front end, middle part and afterbody are equipped with seal groove; Seal ring is all installed in described circular groove.

Preferably, the position that described piston rod contacts with inboard wall of cylinder block is provided with bumper.

Due to the utilization of technique scheme, the present invention compared with prior art has following advantages:

A kind of times of air cylinder of the present invention, by piston rod be arranged on cylinder interior and with two air chambers of dividing plate mix proportion, air pressure acts on respectively on the piston rod end face in air chamber, air pressure in two air chambers promotes piston rod and moves to a direction, make lifting surface area and the pressure of piston rod increase by one times, in the situation that cylinder installation dimension is constant, the thrust of needle has increased by one times, solved cylinder because pressure is inadequate, piston rod pushes away motionless needle, causes the incessantly problem of glue of Jiao Kou place envelope.

Accompanying drawing explanation

Below in conjunction with accompanying drawing, technical solution of the present invention is described further:

The structural representation of air cylinder that accompanying drawing 1 is prior art;

The structural representation that accompanying drawing 2 is a kind of times of air cylinder of the present invention;

Wherein: 1, cylinder body; 2, piston rod; 3, dividing plate; 4, air chamber; 5, seal groove; 6, bumper; 7, circular groove.

Embodiment

Below in conjunction with accompanying drawing, the present invention is described.

Be a kind of times of air cylinder of the present invention as shown in Figure 2, comprise cylinder body 1, piston rod 2, dividing plate 3, described dividing plate 3 is arranged on cylinder body 1 middle part inwall, is made as one with cylinder body 1 inwall, described piston rod 2 be arranged on cylinder body 1 inner and with two air chambers 4 of dividing plate 3 mix proportion, piston rod 2 afterbodys and cylinder body 1 inwall form an air chamber, piston rod 2 middle part circular grooves 7 form another air chamber with dividing plate 3, air inlet in two air chambers 4, air pressure acts on respectively in piston rod 2 afterbodys and circular groove 7 in air chamber 4, the air pressure that acts on piston rod 2 afterbodys forms thrust forward, the air pressure part acting in piston rod 2 middle part circular grooves 7 acts on piston rod 2, a part is stopped by dividing plate 3, can not produce opposite force and affect piston rod 2, therefore only has thrust forward at piston rod 2 middle parts, thereby make the lifting surface area of piston rod 2 and pressure increase by one times, described piston rod 2 front ends, middle part and afterbody are equipped with seal groove 5, the interior seal ring that is all provided with of described seal groove 5, and the sealing more that can make like this cylinder interior piston rod 2 contact with inwall, guarantees cylinder interior pressure, described piston rod 2 is provided with bumper 6 with the place that air chamber 4 inwalls contact, cylinder piston rod 2 is in long motion state, piston rod 2 collides for a long time with inwall, easily cause the damage of piston rod 2, the setting of bumper 6 can reduce the direct collision of piston rod 2 and inwall, extends the working life of piston rod 2.

The present invention by piston rod 2 be arranged on cylinder interior and with two air chambers 4 of dividing plate 3 mix proportion, air pressure acts on respectively on piston rod 2 end faces in air chamber 4, air pressure in two air chambers 4 promotes piston rod 2 and moves to a direction, make lifting surface area and the pressure of piston rod 2 increase by one times, in the situation that cylinder installation dimension is constant, the thrust of needle has increased by one times, has solved cylinder because pressure is inadequate, piston rod 2 pushes away motionless needle, causes the incessantly problem of glue of Jiao Kou place envelope.

Above-described embodiment is only explanation technical conceive of the present invention and feature; its object is to allow person skilled in the art can understand content of the present invention and be implemented; can not limit the scope of the invention with this; all equivalences that Spirit Essence is done according to the present invention change or modify, and all should be encompassed in protection scope of the present invention.

Claims (4)

1. a times air cylinder, comprises cylinder body, piston rod, it is characterized in that: also comprise dividing plate; Described dividing plate and cylinder body middle part inwall are made as one; Described piston rod be arranged on cylinder interior and with two air chambers of dividing plate mix proportion; Described two air chambers form double thrust piston rod are promoted toward same direction.
2. a kind of times of air cylinder as claimed in claim 1, is characterized in that: described piston rod middle part is provided with circular groove; Described piston rod afterbody and inboard wall of cylinder block form an air chamber; Described piston rod middle part circular groove and dividing plate form another air chamber.
3. a kind of times of air cylinder as claimed in claim 1, is characterized in that: described piston rod front end, middle part and afterbody are equipped with seal groove; Seal ring is all installed in described circular groove.
4. a kind of times of air cylinder as claimed in claim 1, is characterized in that: the position that described piston rod contacts with inboard wall of cylinder block is provided with bumper.
CN201410210947.5A 2014-05-20 2014-05-20 Pressure-multiplying air cylinder CN104047921A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410210947.5A CN104047921A (en) 2014-05-20 2014-05-20 Pressure-multiplying air cylinder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410210947.5A CN104047921A (en) 2014-05-20 2014-05-20 Pressure-multiplying air cylinder

Publications (1)

Publication Number Publication Date
CN104047921A true CN104047921A (en) 2014-09-17

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201410210947.5A CN104047921A (en) 2014-05-20 2014-05-20 Pressure-multiplying air cylinder

Country Status (1)

Country Link
CN (1) CN104047921A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104763702A (en) * 2015-04-22 2015-07-08 揭阳市义发实业有限公司 High-speed hydraulic cylinder and shredding machine
CN107457340A (en) * 2017-08-30 2017-12-12 兰州兰石集团有限公司 A kind of integrated hybrid drive-type twin-tub tandem supercharging hydraulic press

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU1687924A1 (en) * 1989-08-15 1991-10-30 Ставропольское Специальное Конструкторско-Технологическое Бюро Multiposition cylinder
CN201241890Y (en) * 2008-08-19 2009-05-20 孙光锋 Single-acting multiplying-power air cylinder
CN202732536U (en) * 2012-07-11 2013-02-13 福州胜忆电子科技有限公司 Multiple-force cylinder structure
CN202991679U (en) * 2012-10-31 2013-06-12 胡泉 Boosting pressure cylinder
CN203441864U (en) * 2013-09-04 2014-02-19 匡信机械(昆山)有限公司 Multifold force output cylinder

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU1687924A1 (en) * 1989-08-15 1991-10-30 Ставропольское Специальное Конструкторско-Технологическое Бюро Multiposition cylinder
CN201241890Y (en) * 2008-08-19 2009-05-20 孙光锋 Single-acting multiplying-power air cylinder
CN202732536U (en) * 2012-07-11 2013-02-13 福州胜忆电子科技有限公司 Multiple-force cylinder structure
CN202991679U (en) * 2012-10-31 2013-06-12 胡泉 Boosting pressure cylinder
CN203441864U (en) * 2013-09-04 2014-02-19 匡信机械(昆山)有限公司 Multifold force output cylinder

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104763702A (en) * 2015-04-22 2015-07-08 揭阳市义发实业有限公司 High-speed hydraulic cylinder and shredding machine
CN107457340A (en) * 2017-08-30 2017-12-12 兰州兰石集团有限公司 A kind of integrated hybrid drive-type twin-tub tandem supercharging hydraulic press

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Application publication date: 20140917