CN204414522U - A kind of pneumohydraulic pressure-cylinder for low-pressure injection molding machine - Google Patents

A kind of pneumohydraulic pressure-cylinder for low-pressure injection molding machine Download PDF

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Publication number
CN204414522U
CN204414522U CN201420789745.6U CN201420789745U CN204414522U CN 204414522 U CN204414522 U CN 204414522U CN 201420789745 U CN201420789745 U CN 201420789745U CN 204414522 U CN204414522 U CN 204414522U
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China
Prior art keywords
cylinder
resorption
cavity
rod piston
pressure
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Expired - Fee Related
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CN201420789745.6U
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Chinese (zh)
Inventor
杨福春
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DONGGUAN HONGBO MACHINERY CO., LTD.
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杨福春
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Abstract

The utility model relates to a kind of low-pressure injection molding machine, be specifically related to a kind of pneumohydraulic pressure-cylinder for low-pressure injection molding machine, comprise clamping cap (1), cylinder bar (2), gas cylinder (3) and liquid cylinder (4), wherein be provided with connecting rod piston (6) in the second cavity of resorption (42) and the bottom of the second cavity of resorption (42) is provided with the 3rd gas outlet (46), connecting rod piston (6), cylinder bar (2) are connected successively with clamping cap (1), and described supercharging inductor (5) is connected with the control device signal controlling the first air inlet (34), the second air inlet (44) gas passes in and out.The utility model carrys out the drawing velocity of control by stages clamping cap by supercharging inductor, not only possess the high speed of cylinder and the steady pressure of hydraulic cylinder, also avoid the shortcoming at a slow speed of cylinder pressure deficiency and hydraulic cylinder, avoid sharp impacts during matched moulds simultaneously, add the mold use life-span.

Description

A kind of pneumohydraulic pressure-cylinder for low-pressure injection molding machine
Technical field
The utility model relates to a kind of low-pressure injection molding machine, is specifically related to a kind of pneumohydraulic pressure-cylinder for low-pressure injection molding machine.
Background technology
At present, in low-pressure injection molding machinery industry, the common cylinder of most machine many uses pure gas medium is folding mould pushing mechanism, shortcoming is the thrust folding mould that common cylinder depends merely on Compressed Gas, matched moulds dynamics is limited, general die quality is required that high injecting condition can not meet, and buffer structure is simple during the matched moulds of common cylinder, during matched moulds, action is very fast and strong collision sound occurs when mould matched moulds, also have impact on the mold use life-span.
Utility model content
The purpose of this utility model is to provide a kind of pneumohydraulic pressure-cylinder for low-pressure injection molding machine, solves existing low-pressure injection molding machine matched moulds dynamics deficiency and does not have cylinder buffering, affecting the problem in service life.
For solving above-mentioned technical problem, the utility model by the following technical solutions:
For a pneumohydraulic pressure-cylinder for low-pressure injection molding machine, comprise clamping cap (1), cylinder bar (2), gas cylinder (3) and liquid cylinder (4), described gas cylinder (3) is divided into the first epicoele (31) and first cavity of resorption (32) of mutual seal isolation, gas cylinder (3) is provided with first connecting rod piston (33), first connecting rod piston (33) runs through the first epicoele (31) and the first cavity of resorption (32), and described first epicoele (31) is divided into the first air chamber and first liquid chamber by the top of first connecting rod piston (33), described first air chamber is provided with the first air inlet (34), supercharging inductor (5) and the first gas outlet (35) are provided with in described first cavity of resorption (32), when described first connecting rod piston (33) moves down into preset distance and described supercharging inductor (5) contact,
Described liquid cylinder (4) is divided into the second epicoele (41) and second cavity of resorption (42) of mutual seal isolation, second connecting rod piston (43) is installed in liquid cylinder (4), second connecting rod piston (43) runs through the second epicoele (41) and the second cavity of resorption (42), and described second epicoele (41) is divided into two air chamber by the top of second connecting rod piston (43), these two air chamber are respectively equipped with the second air inlet (44) and the second gas outlet (45), described second cavity of resorption (42) is communicated with the first liquid chamber in described first epicoele (31) and is filled with supercharging oil,
Connecting rod piston (6) is provided with and the bottom of the second cavity of resorption (42) is provided with the 3rd gas outlet (46) in described second cavity of resorption (42), connecting rod piston (6), cylinder bar (2) are connected successively with clamping cap (1), and described supercharging inductor (5) is connected with the control device signal controlling the first air inlet (34), the second air inlet (44) gas passes in and out.
Further technical scheme is, described second connecting rod piston (43) is T-shaped, by passage plugging that described second cavity of resorption (42) is communicated with first liquid chamber when it moves down.
Compared with prior art, the beneficial effects of the utility model are: the drawing velocity carrying out control by stages clamping cap by supercharging inductor, not only possess the high speed of cylinder and the steady pressure of hydraulic cylinder, also avoid the shortcoming at a slow speed of cylinder pressure deficiency and hydraulic cylinder, avoid sharp impacts during matched moulds simultaneously, add the mold use life-span.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of pneumohydraulic pressure-cylinder for low-pressure injection molding machine of the utility model.
Fig. 2-Fig. 4 is the working state schematic representation of a kind of pneumohydraulic pressure-cylinder for low-pressure injection molding machine of the utility model.
Detailed description of the invention
In order to make the purpose of this utility model, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.
Fig. 1-Fig. 4 shows an embodiment of a kind of pneumohydraulic pressure-cylinder for low-pressure injection molding machine of the utility model: a kind of pneumohydraulic pressure-cylinder for low-pressure injection molding machine, comprises clamping cap 1, cylinder bar 2, gas cylinder 3 and liquid cylinder 4; Described gas cylinder 3 is divided into the first epicoele 31 and the first cavity of resorption 32 of mutual seal isolation, gas cylinder 3 is provided with first connecting rod piston 33, first connecting rod piston 33 runs through the first epicoele 31 and the first cavity of resorption 32, and described first epicoele 31 is divided into the first air chamber and first liquid chamber by the top of first connecting rod piston 33, described first air chamber is provided with the first air inlet 34, be provided with supercharging inductor 5 and the first gas outlet 35 in described first cavity of resorption 32, when described first connecting rod piston 33 moves down into preset distance and described supercharging inductor 5 contact;
Described liquid cylinder 4 is divided into the second epicoele 41 and the second cavity of resorption 42 of mutual seal isolation, second connecting rod piston 43 is installed in liquid cylinder 4, second connecting rod piston 43 runs through the second epicoele 41 and the second cavity of resorption 42, and described second epicoele 41 is divided into two air chamber by the top of second connecting rod piston 43, these two air chamber are respectively equipped with the second air inlet 44 and the second gas outlet 45, and described second cavity of resorption 42 is communicated with the first liquid chamber in described first epicoele 31 and is filled with supercharging oil;
Connecting rod piston 6 is provided with and the bottom of the second cavity of resorption 42 is provided with the 3rd gas outlet 46 in described second cavity of resorption 42, connecting rod piston 6, cylinder bar 2 are connected successively with clamping cap 1, and described supercharging inductor 5 is connected with the control device signal controlling the first air inlet 34, second air inlet 44 gas turnover.
A preferred embodiment of a kind of pneumohydraulic pressure-cylinder for low-pressure injection molding machine of the utility model, described second connecting rod piston 43 is T-shaped, by passage plugging that described second cavity of resorption 42 is communicated with first liquid chamber when it moves down.
Another preferred embodiment of a kind of pneumohydraulic pressure-cylinder for low-pressure injection molding machine of the utility model, described supercharging inductor 5 has two at least, presses preset distance arrangement respectively.
Fig. 2-Fig. 4 also show operation principle of the present utility model:
Wherein Fig. 2 is stamped condition.The working method of pneumohydraulic pressure-cylinder first extrudes first connecting rod piston 33 by the first air inlet 34 air inlet, first connecting rod piston 33 moves down at a high speed, supercharging oil in first liquid chamber compresses into described second cavity of resorption 42 by passage is squeezed, supercharging inductor 5 can be touched when first connecting rod piston 33 is told and moved down into preset distance, after supercharging inductor 5 receives signal, second air inlet 44 is inflated to the second epicoele 41, second connecting rod piston 43 is moved down at a slow speed, can the passage that is communicated with first liquid chamber of dead second cavity of resorption 42 of shutoff in folding process, in the second cavity of resorption 42, supercharging oil extruding connecting rod piston 6, promote clamping cap 1 and carry out injection moulding.This process can realize speed change stage by stage, has not only possessed the high speed of cylinder and the steady pressure of hydraulic cylinder, also avoids the shortcoming at a slow speed of cylinder pressure deficiency and hydraulic cylinder.
Fig. 3 and Fig. 4 is parting and die opening state.During parting, first by the second air inlet 44 bleed make second connecting rod piston 43 at a slow speed on move retrogressing, the passage be communicated with first liquid chamber until the second cavity of resorption 42 is after UNICOM and described first connecting rod piston 33 and supercharging inductor 5 are separated from each other again, second connecting rod piston 43 quits work, change by the first air inlet 34 bleed make first connecting rod piston 33 fast on move retrogressing, making the oily quick backflow of the supercharging in the second cavity of resorption 42 in first liquid chamber, is then die opening state after making clamping cap 1 quick separating.
Although be described the utility model with reference to multiple explanatory embodiment of the present utility model here, but, should be appreciated that, those skilled in the art can design a lot of other amendment and embodiment, these amendments and embodiment will drop within spirit disclosed in the present application and spirit.More particularly, in the scope of, accompanying drawing open in the application and claim, multiple modification and improvement can be carried out to the building block of subject combination layout and/or layout.Except the distortion carried out building block and/or layout and improving, to those skilled in the art, other purposes also will be obvious.

Claims (3)

1. for a pneumohydraulic pressure-cylinder for low-pressure injection molding machine, it is characterized in that: comprise clamping cap (1), cylinder bar (2), gas cylinder (3) and liquid cylinder (4);
Described gas cylinder (3) is divided into the first epicoele (31) and first cavity of resorption (32) of mutual seal isolation, gas cylinder (3) is provided with first connecting rod piston (33), first connecting rod piston (33) runs through the first epicoele (31) and the first cavity of resorption (32), and described first epicoele (31) is divided into the first air chamber and first liquid chamber by the top of first connecting rod piston (33), described first air chamber is provided with the first air inlet (34), supercharging inductor (5) and the first gas outlet (35) are provided with in described first cavity of resorption (32), when described first connecting rod piston (33) moves down into preset distance and described supercharging inductor (5) contact,
Described liquid cylinder (4) is divided into the second epicoele (41) and second cavity of resorption (42) of mutual seal isolation, second connecting rod piston (43) is installed in liquid cylinder (4), second connecting rod piston (43) runs through the second epicoele (41) and the second cavity of resorption (42), and described second epicoele (41) is divided into two air chamber by the top of second connecting rod piston (43), these two air chamber are respectively equipped with the second air inlet (44) and the second gas outlet (45), described second cavity of resorption (42) is communicated with the first liquid chamber in described first epicoele (31) and is filled with supercharging oil,
Connecting rod piston (6) is provided with and the bottom of the second cavity of resorption (42) is provided with the 3rd gas outlet (46) in described second cavity of resorption (42), connecting rod piston (6), cylinder bar (2) are connected successively with clamping cap (1), and described supercharging inductor (5) is connected with the control device signal controlling the first air inlet (34), the second air inlet (44) gas passes in and out.
2. a kind of pneumohydraulic pressure-cylinder for low-pressure injection molding machine according to claim 1, is characterized in that: described second connecting rod piston (43) is T-shaped, by passage plugging that described second cavity of resorption (42) is communicated with first liquid chamber when it moves down.
3. a kind of pneumohydraulic pressure-cylinder for low-pressure injection molding machine according to claim 1, is characterized in that: described supercharging inductor (5) has two at least, presses preset distance arrangement respectively.
CN201420789745.6U 2014-12-15 2014-12-15 A kind of pneumohydraulic pressure-cylinder for low-pressure injection molding machine Expired - Fee Related CN204414522U (en)

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CN201420789745.6U CN204414522U (en) 2014-12-15 2014-12-15 A kind of pneumohydraulic pressure-cylinder for low-pressure injection molding machine

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Application Number Priority Date Filing Date Title
CN201420789745.6U CN204414522U (en) 2014-12-15 2014-12-15 A kind of pneumohydraulic pressure-cylinder for low-pressure injection molding machine

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105443461A (en) * 2016-01-05 2016-03-30 谭伟雄 Pneumatic-hydraulic pressure cylinder with multiple times of prepressing and pressure boosting and working method thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105443461A (en) * 2016-01-05 2016-03-30 谭伟雄 Pneumatic-hydraulic pressure cylinder with multiple times of prepressing and pressure boosting and working method thereof
CN105443461B (en) * 2016-01-05 2018-03-13 谭伟雄 A kind of multiple-prepressing, the pneumohydraulic pressure-cylinder of supercharging and its method of work

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C14 Grant of patent or utility model
TR01 Transfer of patent right

Effective date of registration: 20151126

Address after: 523710, No. 4, Daping Road, Tangxia Town, Guangdong City, Dongguan Province

Patentee after: DONGGUAN HONGBO MACHINERY CO., LTD.

Address before: 523710, No. 4, Daping Road, Tangxia Town, Guangdong City, Dongguan Province

Patentee before: Yang Fuchun

C41 Transfer of patent application or patent right or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20150624

Termination date: 20171215

CF01 Termination of patent right due to non-payment of annual fee