CN212202698U - PVC (polyvinyl chloride) quick die assembly oil cylinder - Google Patents
PVC (polyvinyl chloride) quick die assembly oil cylinder Download PDFInfo
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- CN212202698U CN212202698U CN202020833693.3U CN202020833693U CN212202698U CN 212202698 U CN212202698 U CN 212202698U CN 202020833693 U CN202020833693 U CN 202020833693U CN 212202698 U CN212202698 U CN 212202698U
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Abstract
The utility model discloses a quick compound die hydro-cylinder of PVC, including hydro-cylinder, female cylinder piston rod and sub-cylinder piston rod, the hydro-cylinder front end is provided with a jar body flange, and hydro-cylinder internally mounted has female cylinder piston rod, and female cylinder piston rod and clamp plate junction are inboard and the sealing washer, the hydro-cylinder bottom plate left side of female cylinder piston rod rear end is provided with the pressure boost oil inlet, and the screw joint groove has been seted up at female cylinder piston rod middle part, and inside sub-cylinder piston rod deepened the cavity in the middle part of the female cylinder piston rod, and the through-hole has been seted up at sub-. This quick compound die hydro-cylinder of PVC, hydro-cylinder section of thick bamboo adopt an organic whole structure to inside sub-cylinder piston rod structure spiro union that sets up forms overall structure inside the hydro-cylinder section of thick bamboo, and sealed effectual, and at the inside intercommunication oil-out of piston top oil pocket of female cylinder piston rod bottom, make the oil of oil-out business turn over form the effect of buffering, avoid the piston direct contact backing plate of female cylinder piston rod bottom inboard, improve the life of hydro-cylinder.
Description
Technical Field
The utility model relates to a headlight installation technical field specifically is a quick compound die hydro-cylinder of PVC.
Background
The mold opening and closing mechanism of the PVC hollow blow molding machine requires a large oil cylinder stroke, and has large mold locking pressure to ensure the molding of a blow molding product after the mold is closed in place, and the mold opening and closing speed is high, the required oil flow is large, and the pressure is low; the oil flow is required to be small and the pressure is required to be high during mode locking. The system is required to provide high pressure and large flow to meet the requirements of mold opening and closing and mold locking, so that a very large-power motor is required to drive, the energy consumption is high, the production cost is high, and the national call for energy conservation and emission reduction cannot be responded, and the novel mold closing oil cylinder in the prior art (patent number: CN 201920058156.3) effectively solves the problems, but has the defects that firstly: the oil chamber side of piston upper end does not set up the business turn over hydraulic fluid port, and can't play the effect of buffering, the second: cylinder body section of thick bamboo and back lid separately set up, influence sealed effect, the third: the piston rod in the middle part is directly fixed on the rear cover through a bolt, and the combined structure influences the whole sealing property.
SUMMERY OF THE UTILITY MODEL
The utility model provides a technical problem lie in overcoming the problem that the background art provided, provide a quick compound die hydro-cylinder of PVC.
In order to achieve the above object, the utility model provides a following technical scheme: a PVC (polyvinyl chloride) quick die-closing oil cylinder comprises an oil cylinder barrel, a master cylinder piston rod and a slave cylinder piston rod, wherein a tank body flange is arranged at the front end of the oil cylinder barrel, a pressing plate is fixed on the tank body flange through a bolt, a base plate is arranged between the pressing plate and the tank body flange, the master cylinder piston rod is arranged in the oil cylinder barrel, a master cylinder piston sealing piece is arranged on a protruding structure at the rear end of the master cylinder piston rod, the inner side of the joint of the master cylinder piston rod and the pressing plate and a sealing ring are arranged, and the sealing ring is arranged at the joint;
the oil cylinder bottom plate left side of female cylinder piston rod rear end is provided with the pressure boost oil inlet, and the oil cylinder bottom plate right side of female cylinder piston rod rear end is provided with quick oil supply mouth, and the spiro union groove has been seted up at female cylinder piston rod middle part, and son cylinder piston rod lower extreme spiro union is inside the spiro union groove, and inside son cylinder piston rod deepened mother cylinder piston rod middle part cavity, and son cylinder piston rod middle part has seted up the through-hole.
Preferably, an oil outlet is formed in a tank body flange at the front end of the oil cylinder barrel, a quick oil supplementing opening and a pressurizing oil inlet which are formed in the bottom of the piston rod of the female cylinder are communicated with an oil cavity of the piston rod of the female cylinder, and the diameter of the quick oil supplementing opening is larger than that of the pressurizing oil inlet.
Preferably, the length of the screw joint groove formed in the center of the bottom plate of the piston rod of the master cylinder is greater than that of the screw joint at the lower end of the piston rod of the slave cylinder, the piston rod of the slave cylinder is screwed on the piston rod of the master cylinder, so that a cavity is formed at the bottom of the screw joint groove, the cavity at the bottom of the screw joint groove is communicated with the oil inlet of the slave cylinder on the side face of the bottom plate of the piston rod of the master cylinder, and meanwhile, the oil inlet of the slave cylinder is.
Preferably, a sub-cylinder piston sealing piece is arranged inside the main cylinder piston rod and is attached to the surface of the sub-cylinder piston rod, meanwhile, the main cylinder piston sealing piece arranged on the outer side of the main cylinder piston rod is attached to the inside of the oil cylinder barrel, the diameter of the rod body at the front end of the sub-cylinder piston rod is smaller than that of the central cavity of the main cylinder piston rod, and the diameter of the rod body at the front end of the main cylinder piston rod is smaller than the inner diameter of the oil cylinder barrel.
Preferably, a limiting ring is fixed on the rod body at the rear side of the screw joint at the lower end of the piston rod of the sub-cylinder, the section of the piston rod of the sub-cylinder is of a cross structure, and the length of the piston rod of the sub-cylinder is smaller than that of the oil cylinder barrel.
Preferably, the inner side of the base plate is attached to the outer side surface of the piston rod of the female cylinder, a sealing ring made of rubber is installed inside a groove formed in the inner side of the base plate, the upper end of the sealing ring is pressed on the fastening ring, a convex block is arranged on the outer side of the fastening ring, the inner side of the pressing plate is pressed on the convex block on the outer side of the fastening ring, and a group of sealing rings is fixed on the inner side of the upper end of the fastening ring.
Compared with the prior art, the beneficial effects of the utility model are that: this quick compound die hydro-cylinder of PVC, hydro-cylinder section of thick bamboo adopt an organic whole structure to inside sub-cylinder piston rod structure spiro union that sets up forms overall structure inside the hydro-cylinder section of thick bamboo, and is sealed effectual, and at the inside intercommunication oil-out of the piston top oil pocket of female cylinder piston rod bottom, makes the oil of oil-out business turn over form the effect of buffering, avoids the piston direct contact backing plate of female cylinder piston rod bottom inboard, improves the life of hydro-cylinder.
Drawings
FIG. 1 is a schematic sectional view of the structure of the present invention;
FIG. 2 is a schematic view of oil inlet of the sub-cylinder in the structure of the present invention;
FIG. 3 is a schematic view of the oil inlet of the booster oil inlet and the quick oil feeding port of the structure of the present invention;
fig. 4 is a schematic view of the installation of the backing plate according to the structure of the present invention.
In the figure: 1. an oil cylinder barrel; 2. a master cylinder piston rod; 3. a booster oil inlet; 4. a sub-cylinder oil inlet; 5. a quick oil supplementing port; 6. a master cylinder piston seal; 7. a sub-cylinder piston seal; 8. a sub-cylinder piston rod; 9. a tank body flange; 10. an oil outlet; 11. a seal ring; 12. a fastening ring; 13. pressing a plate; 14. a base plate; 15. a screw connection groove; 16. and a through hole.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-4, the present invention provides a technical solution: a PVC (polyvinyl chloride) quick die-closing oil cylinder comprises an oil cylinder barrel 1, a master cylinder piston rod 2 and a slave cylinder piston rod 8, wherein a tank body flange 9 is arranged at the front end of the oil cylinder barrel 1, a pressing plate 13 is fixed on the tank body flange 9 through bolts, a backing plate 14 is arranged between the pressing plate 13 and the tank body flange 9, the master cylinder piston rod 2 is arranged in the oil cylinder barrel 1, a master cylinder piston sealing piece 6 is arranged on a protruding structure at the rear end of the master cylinder piston rod 2, the inner side of the joint of the master cylinder piston rod 2 and the pressing plate 13 and a sealing ring 11 are arranged, and the sealing ring 11 is arranged at the joint of the; a pressurizing oil inlet 3 is arranged on the left side of a bottom plate of an oil cylinder barrel 1 at the rear end of a piston rod 2 of a master cylinder, a quick oil supplementing port 5 is arranged on the right side of the bottom plate of the oil cylinder barrel 1 at the rear end of the piston rod 2 of the master cylinder, a screw groove 15 is formed in the middle of the piston rod 2 of the master cylinder, the lower end of the piston rod 8 of the slave cylinder is screwed in the screw groove 15, the piston rod 8 of the slave cylinder extends into a cavity in the middle of the piston rod 2 of the master cylinder, a through hole 16 is formed in the middle of the piston rod 8 of the slave cylinder, oil is fed from the position of the oil inlet 4 of the slave cylinder in the production process, so that the oil enters the piston rod 2 of the master cylinder through the through hole 16, the piston rod 2 of the master cylinder is ejected out, the master cylinder is quickly matched, and buffer oil outside the piston rod 2 of the master cylinder is, the booster oil inlet 3, the sub-cylinder oil inlet 4, the quick oil supplementing port 5 and the oil outlet 10 are all oil inlets and oil outlets which can be accessed;
an oil outlet 10 is arranged on a tank body flange 9 at the front end of the oil cylinder barrel 1, a quick oil supplementing port 5 and a pressurizing oil inlet 3 which are arranged at the bottom of a piston rod 2 of the master cylinder are communicated with an oil cavity of the piston rod 2 of the master cylinder, the diameter of the quick oil supplementing port 5 is larger than that of the pressurizing oil inlet 3, the effect of quick oil flushing is achieved, the length of a threaded groove 15 formed in the center of a bottom plate of the piston rod 2 of the master cylinder is larger than that of a threaded joint at the lower end of a piston rod 8 of the slave cylinder, the piston rod 8 of the slave cylinder is in threaded connection with the piston rod 2 of the master cylinder, so that a cavity is formed at the bottom of the threaded groove 15 and communicated with an oil inlet 4 of the slave cylinder on the side face of the bottom plate of the piston rod 2 of the master cylinder, the oil inlet 4 of the slave cylinder enters the oil cavity to push the, a sub-cylinder piston sealing piece 7 is arranged inside the main cylinder piston rod 2, the sub-cylinder piston sealing piece 7 is attached to the surface of a sub-cylinder piston rod 8, meanwhile, a main cylinder piston sealing piece 6 arranged on the outer side of the main cylinder piston rod 2 is attached to the inside of the oil cylinder barrel 1, the diameter of a rod body at the front end of the sub-cylinder piston rod 8 is smaller than that of a central cavity of the main cylinder piston rod 2, the diameter of a rod body at the front end of the main cylinder piston rod 2 is smaller than the inner diameter of the oil cylinder barrel 1, an oil cavity is guaranteed to be formed between the main cylinder piston rod and the oil cylinder barrel, a limiting ring is fixed on a rod body at the rear side of a screw joint at the lower end of the sub-cylinder;
the inner side of a base plate 14 is attached to the outer side surface of a mother cylinder piston rod 2, a rubber sealing ring 11 is installed inside a groove formed in the inner side of the base plate 14, the upper end of the sealing ring 11 compresses a fastening ring 12, meanwhile, a convex block is arranged on the outer side of the fastening ring 12, the inner side of a pressing plate 13 is pressed on the convex block on the outer side of the fastening ring 12, a group of sealing rings 11 are fixed on the inner side of the upper end of the fastening ring 12, the inner side of the base plate 14 plays a role in limiting bolts at the lower end of the mother cylinder piston rod 2, the upper end of the base plate 14 is provided with the sealing ring 11 which plays a role in sealing and preventing oil leakage, the sealing ring 11 inside the base plate 14 is compressed through the fastening ring 12, the fastening.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides a quick compound die hydro-cylinder of PVC, includes hydro-cylinder section of thick bamboo (1), female cylinder piston rod (2) and sub-cylinder piston rod (8), its characterized in that: a tank body flange (9) is arranged at the front end of the oil cylinder barrel (1), a pressing plate (13) is fixed on the tank body flange (9) through bolts, a backing plate (14) is arranged between the pressing plate (13) and the tank body flange (9), a female cylinder piston rod (2) is installed inside the oil cylinder barrel (1), a female cylinder piston sealing piece (6) is arranged on a protruding structure at the rear end of the female cylinder piston rod (2), the inner side of the joint of the female cylinder piston rod (2) and the pressing plate (13) and a sealing ring (11) are arranged, and a sealing ring (11) is arranged at the joint of the inner side of the backing plate (14) and the female cylinder piston;
the oil cylinder barrel (1) bottom plate left side of female cylinder piston rod (2) rear end is provided with pressure boost oil inlet (3), and the oil cylinder barrel (1) bottom plate right side of female cylinder piston rod (2) rear end is provided with fast oil supply mouth (5), screw groove (15) have been seted up at female cylinder piston rod (2) middle part, and sub-cylinder piston rod (8) lower extreme spiro union is inside screw groove (15), and sub-cylinder piston rod (8) are deepened inside female cylinder piston rod (2) middle part cavity, and through-hole (16) have been seted up at sub-cylinder piston rod (8) middle part.
2. The PVC quick die closing oil cylinder according to claim 1, characterized in that: an oil outlet (10) is formed in a tank body flange (9) at the front end of the oil cylinder barrel (1), a quick oil supplementing opening (5) and a pressurizing oil inlet (3) which are formed in the bottom of the main cylinder piston rod (2) are communicated with an oil cavity of the main cylinder piston rod (2), and the diameter of the quick oil supplementing opening (5) is larger than that of the pressurizing oil inlet (3).
3. The PVC quick die closing oil cylinder according to claim 1, characterized in that: the length of a screw joint groove (15) formed in the center of a bottom plate of the main cylinder piston rod (2) is larger than that of a screw joint at the lower end of the sub-cylinder piston rod (8), the sub-cylinder piston rod (8) is in screw joint with the main cylinder piston rod (2) to form a cavity at the bottom of the screw joint groove (15), the cavity at the bottom of the screw joint groove (15) is communicated with a sub-cylinder oil inlet (4) on the side face of the bottom plate of the main cylinder piston rod (2), and meanwhile, the sub-cylinder oil inlet (4) is communicated with a through hole (16) and the cavity at the center of the main cylinder piston rod (.
4. The PVC quick die closing oil cylinder according to claim 1, characterized in that: the inner part of the mother cylinder piston rod (2) is provided with a son cylinder piston sealing element (7), the son cylinder piston sealing element (7) is attached to the surface of the son cylinder piston rod (8), meanwhile, the mother cylinder piston sealing element (6) arranged on the outer side of the mother cylinder piston rod (2) is attached to the inner part of the oil cylinder barrel (1), the diameter of the front end rod body of the son cylinder piston rod (8) is smaller than that of the central cavity of the mother cylinder piston rod (2), and the diameter of the front end rod body of the mother cylinder piston rod (2) is smaller than the inner diameter of the oil cylinder barrel (1).
5. The PVC quick die closing oil cylinder according to claim 1, characterized in that: a limiting ring is fixed on the rod body on the rear side of the screw joint at the lower end of the sub-cylinder piston rod (8), the section of the sub-cylinder piston rod (8) is of a cross structure, and the length of the sub-cylinder piston rod (8) is smaller than that of the oil cylinder barrel (1).
6. The PVC quick die closing oil cylinder according to claim 1, characterized in that: backing plate (14) inboard laminating mother jar piston rod (2) lateral surface, and the sealing washer (11) of recess internally mounted rubber material that backing plate (14) inboard was seted up to sealing washer (11) upper end compresses tightly and encloses ring (12), and it sets up the lug to enclose ring (12) outside simultaneously, and clamp plate (13) inboard presses on the lug that encloses ring (12) outside to enclose a set of sealing washer (11) of ring (12) upper end inboard fixed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020833693.3U CN212202698U (en) | 2020-05-19 | 2020-05-19 | PVC (polyvinyl chloride) quick die assembly oil cylinder |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020833693.3U CN212202698U (en) | 2020-05-19 | 2020-05-19 | PVC (polyvinyl chloride) quick die assembly oil cylinder |
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| CN212202698U true CN212202698U (en) | 2020-12-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202020833693.3U Active CN212202698U (en) | 2020-05-19 | 2020-05-19 | PVC (polyvinyl chloride) quick die assembly oil cylinder |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113290797A (en) * | 2021-05-21 | 2021-08-24 | 苏州立注机械有限公司 | High-efficient primary and secondary jar and hydraulic control system thereof |
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2020
- 2020-05-19 CN CN202020833693.3U patent/CN212202698U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113290797A (en) * | 2021-05-21 | 2021-08-24 | 苏州立注机械有限公司 | High-efficient primary and secondary jar and hydraulic control system thereof |
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