CN102155455B - Oil cylinder assembly and hydraulic molding device provided with same - Google Patents
Oil cylinder assembly and hydraulic molding device provided with same Download PDFInfo
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- CN102155455B CN102155455B CN 201110058882 CN201110058882A CN102155455B CN 102155455 B CN102155455 B CN 102155455B CN 201110058882 CN201110058882 CN 201110058882 CN 201110058882 A CN201110058882 A CN 201110058882A CN 102155455 B CN102155455 B CN 102155455B
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Abstract
The invention discloses an oil cylinder assembly and a hydraulic molding device provided with the same. The oil cylinder assembly and the device are characterized in that a piston rod in the oil cylinder assembly is divided into a sleeve part and a top rod part, wherein the top rod can be slidingly sleeved in the sleeve and is matched with the sleeve in a sealing mode; the upper end of the sleeve extends out of an oil cylinder; the upper end of the top rod extends out of the sleeve; the oil cylinder is divided into three oil chambers by the top rod and the sleeve; the oil cylinder walls corresponding with the three oil cylinders are respectively provided with a through hole for the input and output of the oil chamber for hydraulic oil; a spring acts between the sleeve and the top rod, and the spring respectively applies acting force upward and downward to the sleeve and the top rod; and the upper end of the sleeve is provided with a hook. According to the invention, the integrated level is high, the manufacturing cost is low, the mold locking and transmission force are reliable, molds move up and down steadily, and the quality of products manufactured by the hydraulic molding device is improved.
Description
Technical field
The present invention relates to the hydraulic cylinder assembly in the hydraulic equipment, relate in particular to for locking mould and the hydraulic cylinder assembly that ejects mould.The invention still further relates to the shaped by fluid pressure equipment that is provided with this hydraulic cylinder assembly.
Background technique
In some shaped by fluid pressure equipment, for example in ceramic brick press, be provided with for locking mould and the hydraulic cylinder assembly that ejects mould.In the prior art, this hydraulic cylinder assembly is made of two kinds of oil cylinders, and a kind of is Mode-locking oil cylinder, is used for the locking mould, and another kind is the backform oil cylinder, is used for mould is ejected and drive the mould backhaul, also is provided with mechanical linkage which controls between two kinds of oil cylinders.During the locking mould, by Mode-locking oil cylinder pulling locked mode bar mould is locked, when ejecting mould and mould backhaul, drive the Mode-locking oil cylinder motion by the backform oil cylinder, drive the mould motion by Mode-locking oil cylinder again.
Because existing this class hydraulic cylinder assembly need dispose two kinds of oil cylinders, have therefore that component are more, complex structure, the defective big, that manufacture cost is high takes up room.In addition, the clamping force of locking mould is to produce by the oil pressure in the Mode-locking oil cylinder, takes off lock because the oil pressure instability causes mould easily, and the damage of product that causes mould to be suppressed causes damage to the user.Moreover, in the process of backhaul, the in-oil cylinder oil pressure of backform can't directly act on mould, must pass to mould indirectly by the hydraulic oil in the Mode-locking oil cylinder, the influence that the stability that mould moves down is subjected to pressure fluctuation is bigger, the power transmission poor reliability has reduced the quality of the product that mould suppresses.
Summary of the invention
For solving the ubiquitous problem of above-mentioned prior art, the invention provides a kind of hydraulic cylinder assembly, this hydraulic cylinder assembly integrated locked mode and eject two kinds of functions in an oil cylinder, it is little to take up room.
The present invention also provides a kind of shaped by fluid pressure equipment that is provided with this hydraulic cylinder assembly in addition, makes this shaped by fluid pressure equipment component minimizing, designs simplification, manufacture cost reduce, and can improve the quality of the product that shaped by fluid pressure equipment suppresses.
The main technical schemes that adopts according to a kind of hydraulic cylinder assembly provided by the invention is: comprise oil cylinder, be provided with piston rod in the oil cylinder, in-oil cylinder piston rod is divided into sleeve pipe and push rod two-part, push rod is enclosed within slidably in the sleeve pipe and with bobbin seal and cooperates, oil cylinder is stretched out in the upper end of sleeve pipe, and sleeve pipe is stretched out in the upper end of push rod; The local pipeline section of sleeve pipe cooperates with the inner wall sealing of oil cylinder, constitutes first piston; The lower end of push rod is stretched out sleeve pipe and is cooperated with the inner wall sealing of oil cylinder, constitutes second piston; First piston and second piston are divided into three oil pockets with oil cylinder, oil pocket under second piston is for ejecting the chamber, oil pocket between first piston and second piston is the locked mode chamber, the above oil pocket of first piston is the backhaul chamber, and three corresponding cylinder walls of oil pocket are respectively equipped with the through hole that supplies hydraulic oil discrepancy oil pocket; Effect has a spring between sleeve pipe and push rod, and spring is to sleeve pipe and push rod applies respectively down and up active force; Upper end at sleeve pipe has been installed with eave tile.
Also adopt following attached technological scheme according to a kind of hydraulic cylinder assembly provided by the invention:
Be provided with cavity in the described sleeve pipe, the described spring that acts between sleeve pipe and the push rod is placed in the cavity.
The described spring that acts between sleeve pipe and the push rod is to pile up the cluster spring that forms by a plurality of dish springs, and the dish spring is enclosed within on the push rod.
Be provided with shoulder hole in described sleeve pipe, in shoulder hole, be installed with the limiting stopper of radial protrusion on push rod, under the active force of described spring to push rod, limiting stopper contacts in shoulder hole from lower to upper.
The shoulder hole of described sleeve pipe forms from the top extension of the cavity of described sleeve pipe, and the diameter of shoulder hole is less than the diameter of cavity.
The main technical schemes that adopts according to a kind of shaped by fluid pressure equipment provided by the invention is: comprise pedestal and the hydraulic cylinder assembly that is installed on the pedestal, described hydraulic cylinder assembly comprises the oil cylinder of fixedlying connected with pedestal, in-oil cylinder piston rod is divided into sleeve pipe and push rod two-part, push rod is enclosed within slidably in the sleeve pipe and with bobbin seal and cooperates, oil cylinder is stretched out in the upper end of sleeve pipe, and sleeve pipe is stretched out in the upper end of push rod; The local pipeline section of sleeve pipe cooperates with the inner wall sealing of oil cylinder, constitutes first piston; The lower end of push rod is stretched out sleeve pipe and is cooperated with the inner wall sealing of oil cylinder, constitutes second piston; First piston and second piston are divided into three oil pockets with oil cylinder, oil pocket under second piston is for ejecting the chamber, oil pocket between first piston and second piston is the locked mode chamber, the above oil pocket of first piston is the backhaul chamber, and three corresponding cylinder walls of oil pocket are respectively equipped with the through hole that supplies hydraulic oil discrepancy oil pocket; Be provided with the spring that acts between sleeve pipe and the push rod in sleeve pipe, spring is to sleeve pipe and push rod applies respectively down and up active force; Upper end at sleeve pipe has been installed with eave tile; In described hydraulic cylinder assembly, oil cylinder is fixed in the pedestal of shaped by fluid pressure equipment, and the through hole that ejects on chamber, locked mode chamber, the corresponding cylinder wall in backhaul chamber of oil cylinder is connected with eject oilhole, locked mode oilhole, backhaul oilhole in the pedestal respectively.
Compared with prior art have following advantage according to a kind of hydraulic cylinder assembly provided by the invention:
(1) the present invention's integrated locked mode and eject two kinds of functions in an oil cylinder, the level of integration height, structure is small and exquisite, low cost of manufacture;
(2) the present invention's clamping force of locking mould is provided by the spring that acts between sleeve pipe and the push rod, is not subjected to the influence of pressure fluctuation, locked mode reliability height;
(3) in the backform process, in-oil cylinder oil pressure up moves push rod and directly acts on the mould ejection plate, in the backhaul process, in-oil cylinder oil pressure acts directly on by first piston on the sleeve pipe that contacts with the clamp rigidity of mould ejection plate, power transmission reliability height.
Compared with prior art have following advantage according to a kind of shaped by fluid pressure equipment provided by the invention:
(1) minimum of shaped by fluid pressure equipment needs an oil cylinder is installed, and the amount of parts of required assembling greatly reduces, and assembles more convenient;
(2) locked mode reliability height is avoided taking off the damage of product that lock causes shaped by fluid pressure equipment to suppress, yield rate height because of mould;
(3) in the process of backform and backhaul, be subjected to the influence of pressure fluctuation less, mould moves up and down more steady, has improved the quality of the product that shaped by fluid pressure equipment suppresses.
Description of drawings
Fig. 1 is the structural representation of the embodiment of the invention;
Fig. 2 is the sleeve pipe among Fig. 1 when docking with the clamp of mould ejection plate, and the eave tile of sleeve pipe upper end slips into the schematic representation in the clamp;
Fig. 3 is the A-A sectional view of Fig. 2;
Fig. 4 is the schematic representation of hydraulic cylinder assembly shown in Figure 1 after finishing locked mode;
Fig. 5 is the structural representation that is provided with the shaped by fluid pressure equipment of hydraulic cylinder assembly provided by the invention.
Embodiment
Referring to Fig. 1, in the embodiment of the hydraulic cylinder assembly that the present invention provides, comprise oil cylinder 1, be provided with piston rod in the oil cylinder 1, piston rod is divided into sleeve pipe 2 and push rod 3 two-part.Push rod 3 is enclosed within slidably in the sleeve pipe 2 and with sleeve pipe 2 and is sealed and matched.Oil cylinder 1 is stretched out in the upper end of sleeve pipe 2, and sleeve pipe 2 is stretched out in the upper end of push rod 3.The local pipeline section of sleeve pipe 2 cooperates with the inner wall sealing of oil cylinder 1, constitutes first piston 4.First piston 4 and sleeve pipe 2 can global formations, also are fixed into one again after the moulding respectively.The lower end of push rod 3 is stretched out sleeve pipe 2 and is cooperated with the inner wall sealing of oil cylinder 1, constitutes second piston 5.Second piston 5 and push rod 3 can global formations, also are fixed into one again after the moulding respectively.First piston 4 and second piston 5 are divided into three oil pockets with oil cylinder 1: the oil pocket under second piston 5 is for ejecting chamber 6, and the oil pocket between first piston 4 and second piston 5 is locked mode chamber 7, and the oil pocket of first piston more than 4 is backhaul chamber 8.Three oil pockets 6,7,8 corresponding cylinder walls are respectively equipped with the through hole 9,10,11 that supplies hydraulic oil discrepancy oil pocket.Effect has a spring 12 between sleeve pipe 2 and push rod 3,12 pairs of sleeve pipes 2 of spring and push rod 3 applies respectively down and active force up.Be installed with eave tile 13 in the upper end of sleeve pipe 2.
In the above-described embodiments, be provided with cavity 14 in the sleeve pipe 2, the described spring 12 that acts between sleeve pipe 2 and the push rod 3 is placed in the cavity 14.Wherein, described spring 12 is to pile up the cluster spring that forms by a plurality of dish springs 15, and dish spring 15 is enclosed within on the push rod 3.In sleeve pipe 2, be provided with shoulder hole 16, in shoulder hole 16, on push rod 3, be installed with the limiting stopper 17 of radial protrusion, under the active force of 12 pairs of push rods 3 of spring, limiting stopper 17 contacts from lower to upper in shoulder hole 16, can prevent that thus the upper end of push rod 3 from stretching out sleeve pipe 2 too much.But limiting stopper 17 and push rod 3 global formations also are fixed into one after the moulding respectively again.Described shoulder hole 16 forms from the top extension of the cavity 14 of described sleeve pipe, and the diameter of shoulder hole 16 so is convenient to the processing of shoulder hole 16 less than the diameter of cavity 14.
The locked mode course of action of above-described embodiment is: pressure oil is advanced in locked mode chamber 7, and eject chamber 6 and 8 oil extractions of backhaul chamber, making second piston 5 drive push rod 3 moves down to oil cylinder 1 bottom, and first piston 4 drives sleeve pipe 2 and up stretches out, this moment, spring 12 was compressed, then that mould is in place, as Fig. 2, shown in Figure 3, the eave tile 13 of sleeve pipe 2 upper ends is slipped in the positioning hole 20 of clamp 19 of mould ejection plate 18, then, the 7 release oil extractions of locked mode chamber are so make just that under the elastic force of spring 12 push rod 3 protrudes upward with respect to sleeve pipe 2, sleeve pipe 2 moves down with respect to push rod 3 simultaneously, the result as shown in Figure 4, push rod 3 is roof pressure mould ejection plate 18 upwards, the eave tile 13 of sleeve pipe 2 is pressed the clamp 19 of mould ejection plate 18 downwards, with this mould is locked, finish the locked mode action.Release is anti-process.
The backform course of action of above-described embodiment is: behind the locked mode, locked mode chamber 7 keeps logical zero-pressure oil, 8 oil extractions of backhaul chamber, eject chamber 6 and advance pressure oil, the active force that push rod 3 is produced up, and directly act on the mould ejection plate 18, so with mould ejection plate 18 jack-up upwards, finish the action of backform.In the process that mould ejection plate 18 moves upward, clamp 19 drives sleeve pipe 2 up motion together.
The backhaul course of action of above-described embodiment is: behind the backform, locked mode chamber 7 still keeps logical zero-pressure oil, eject chamber 6 oil extractions, pressure oil is advanced in backhaul chamber 8, the active force that sleeve pipe 2 is produced down, and directly act on the clamp 19 of mould ejection plate 18, so make down drawback movement of mould ejection plate 18.In the process that mould ejection plate 18 moves downward, mould ejection plate 18 drives push rod 3 down motion together.
The embodiment of shaped by fluid pressure equipment provided by the invention as shown in Figure 5, wherein the structure of hydraulic cylinder assembly is identical with previous embodiment, repeats no more.In described hydraulic cylinder assembly, oil cylinder 1 is fixed in the pedestal 24 of shaped by fluid pressure equipment, and the through hole 9,10,11 that ejects on chamber 6, locked mode chamber 7, the backhaul chamber 8 corresponding cylinder walls of oil cylinder 1 is connected with eject oilhole 21, locked mode oilhole 22, backhaul oilhole 23 in the pedestal 24 respectively.Control the oil pressure that ejects chamber 6, locked mode chamber 7, backhaul chamber 8 by ejecting oilhole 21, locked mode oilhole 22, backhaul oilhole 23.
Claims (6)
1. hydraulic cylinder assembly, comprise oil cylinder (1), oil cylinder is provided with piston rod in (1), it is characterized in that: the piston rod in the oil cylinder (1) is divided into sleeve pipe (2) and push rod (3) two-part, push rod (3) is enclosed within slidably in the sleeve pipe (2) and with sleeve pipe (2) and is sealed and matched, oil cylinder (1) is stretched out in the upper end of sleeve pipe (2), and sleeve pipe (2) is stretched out in the upper end of push rod (3); The local pipeline section of sleeve pipe (2) cooperates with the inner wall sealing of oil cylinder (1), constitutes first piston (4); The lower end of push rod (3) is stretched out sleeve pipe (2) and is cooperated with the inner wall sealing of oil cylinder (1), constitutes second piston (5); First piston (4) and second piston (5) are divided into three oil pockets with oil cylinder (1), oil pocket under second piston (5) is for ejecting chamber (6), oil pocket between first piston (4) and second piston (5) is locked mode chamber (7), the above oil pocket of first piston (4) is backhaul chamber (8), and three corresponding cylinder walls of oil pocket are respectively equipped with through hole (9), (10), (11) that supply hydraulic oil discrepancy oil pocket; Effect has a spring (12) between sleeve pipe (2) and push rod (3), and spring (12) is to sleeve pipe (2) and push rod (3) applies respectively down and up active force; Be installed with eave tile (13) in the upper end of sleeve pipe (2).
2. hydraulic cylinder assembly as claimed in claim 1, it is characterized in that: be provided with cavity (14) in the sleeve pipe (2), the described spring (12) that acts between sleeve pipe (2) and the push rod (3) is placed in the cavity (14).
3. hydraulic cylinder assembly as claimed in claim 2, it is characterized in that: the described spring (12) that acts between sleeve pipe (2) and the push rod (3) is to pile up the cluster spring that forms by a plurality of dish springs (15), and dish spring (15) is enclosed within on the push rod (3).
4. hydraulic cylinder assembly as claimed in claim 2, it is characterized in that: in sleeve pipe (2), be provided with shoulder hole (16), in shoulder hole (16), on push rod (3), be installed with the limiting stopper (17) of radial protrusion, under the active force of described spring (12) to push rod (3), limiting stopper (17) contacts from lower to upper in shoulder hole (16).
5. hydraulic cylinder assembly as claimed in claim 4 is characterized in that: the shoulder hole (16) of described sleeve pipe (2) extends from the top of the cavity (14) of described sleeve pipe and forms, and the diameter of shoulder hole (16) is less than the diameter of cavity (14).
6. shaped by fluid pressure equipment, comprise pedestal (24) and be installed in hydraulic cylinder assembly on the pedestal (24), it is characterized in that: described hydraulic cylinder assembly is the described hydraulic cylinder assembly of aforesaid right requirement 1 to 5 arbitrary claim, in described hydraulic cylinder assembly, described oil cylinder (1) is fixed in the pedestal (24), described oil cylinder (1) eject chamber (6), locked mode chamber (7), through hole (9) on the corresponding cylinder wall in backhaul chamber (8), (10), (11) respectively with pedestal (24) in eject oilhole (21), locked mode oilhole (22), backhaul oilhole (23) connects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110058882 CN102155455B (en) | 2011-03-11 | 2011-03-11 | Oil cylinder assembly and hydraulic molding device provided with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110058882 CN102155455B (en) | 2011-03-11 | 2011-03-11 | Oil cylinder assembly and hydraulic molding device provided with same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102155455A CN102155455A (en) | 2011-08-17 |
| CN102155455B true CN102155455B (en) | 2013-08-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110058882 Active CN102155455B (en) | 2011-03-11 | 2011-03-11 | Oil cylinder assembly and hydraulic molding device provided with same |
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| CN (1) | CN102155455B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104019079A (en) * | 2014-06-12 | 2014-09-03 | 苏州劳灵精密机械有限公司 | Single-action thrust cylinder |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110879577B (en) * | 2019-10-25 | 2022-11-18 | 永发（江苏）模塑包装科技有限公司 | Paper pulp molding equipment capable of quickly changing mold |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3539074A1 (en) * | 1985-11-04 | 1987-05-14 | Knorr Bremse Ag | PRESSURE DRIVE, PISTONLESS WORK CYLINDER |
| CN2200524Y (en) * | 1994-07-27 | 1995-06-14 | 李虎元 | Hydraulic make-up machine |
| CN2575349Y (en) * | 2002-10-16 | 2003-09-24 | 吉林大学 | Pitch control connecting rod |
| CN201301843Y (en) * | 2008-10-28 | 2009-09-02 | 中冶赛迪工程技术股份有限公司 | Piston rod protector for hydraulic cylinder |
| CN202001420U (en) * | 2011-03-11 | 2011-10-05 | 佛山市恒力泰机械有限公司 | Cylinder assembly and hydraulic forming device with same |
-
2011
- 2011-03-11 CN CN 201110058882 patent/CN102155455B/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104019079A (en) * | 2014-06-12 | 2014-09-03 | 苏州劳灵精密机械有限公司 | Single-action thrust cylinder |
| CN104019079B (en) * | 2014-06-12 | 2016-06-29 | 苏州劳灵精密机械有限公司 | A kind of single-acting thrust cylinder |
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| Publication number | Publication date |
|---|---|
| CN102155455A (en) | 2011-08-17 |
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Address after: 528137 No. 25 (C), science and Technology Industrial Zone, Sanshui center, Foshan, Guangdong, China (F4) Patentee after: FOSHAN HENGLITAI MACHINERY Co.,Ltd. Address before: 528000 west side of Gangkou Road, high tech Development Zone, Chancheng District, Foshan City, Guangdong Province Patentee before: FOSHAN HENGLITAI MACHINERY Co.,Ltd. |
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