CN209025911U - A kind of high pressure composite oil cylinder structure of injection molding machine - Google Patents
A kind of high pressure composite oil cylinder structure of injection molding machine Download PDFInfo
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- CN209025911U CN209025911U CN201821754276.9U CN201821754276U CN209025911U CN 209025911 U CN209025911 U CN 209025911U CN 201821754276 U CN201821754276 U CN 201821754276U CN 209025911 U CN209025911 U CN 209025911U
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Abstract
A kind of high pressure composite oil cylinder structure of injection molding machine, including cylinder body and piston rod assembly, cylinder body are internally provided with front interior cavity and rear interior cavity, and the diameter of front interior cavity is greater than the diameter of rear interior cavity and the two is interconnected；The piston rod assembly includes high pressure piston and small piston, and the diameter of high pressure piston is greater than the diameter of small piston and the two is mutually permanently connected, and high pressure piston is slidably arranged in front interior cavity, and small piston is slidably arranged in rear interior cavity.The utility model has the characteristics that simple and reasonable, volume and length are few, weight is low, the connection of each part is compact, manufacturing cost is low, easy to produce, Yi Shixian and safe and reliable by the improvement of above structure, practical.
Description
Technical field
The utility model relates to a kind of high pressure composite oil cylinder structures of injection molding machine.
Background technique
Traditional high-voltage oil cylinder structure is as shown in Figure 1, mainly by oil cylinder front cover 1 ', cylinder body 2 ', piston 3 ', piston rod 4 '
It being formed with oil cylinder rear cover 5 ', oil inlet and outlet 6 ' is distributed in oil cylinder front cover 1 ' and 5 ' both ends of oil cylinder rear cover, and composition is mobile by piston 3 ',
The piston rod 4 ' for driving both ends to stretch out is completed to stretch, and by the transmitting of moving member and power is completed by piston rod 4 '；Before oil cylinder
Lid 1 ' and oil cylinder rear cover 5 ' are mainly processed with steel part, and there are two types of general blank sources, and one kind is that steel plate is directly cut out, another
To forge into blank shape, then finished, the stock utilization of above-mentioned blank is not high, causes the increase of material cost；
Meanwhile the thickness of oil cylinder front cover 1 ' and oil cylinder rear cover 5 ' causes this structure plus to reserve the flexible space of piston rod 4 '
Oil cylinder entire length is longer；Moreover, oil inlet and outlet 6 ' is distributed in oil cylinder front cover 1 ' and 5 ' both ends of oil cylinder rear cover will cause hydraulic oil
Pipe, which is arranged unsightly meet the requirements, pursues machine use that is compact-sized, shortening length and mitigation weight.Therefore, having must
It is further improved.
Utility model content
That the purpose of the utility model is to provide a kind of simple and reasonable, volumes and length is few, weight is low, each part connects
Connect that compact, manufacturing cost is low, the high pressure composite oil cylinder structure of easy to produce, Yi Shixian and safe and reliable injection molding machine, it is existing to overcome
There is the shortcoming in technology.
By a kind of high pressure composite oil cylinder structure of injection molding machine of this purpose design, including cylinder body and piston rod assembly,
Be characterized in that: cylinder body is internally provided with front interior cavity and rear interior cavity, and the diameter of front interior cavity is greater than the diameter and the two phase of rear interior cavity
It is intercommunicated；The piston rod assembly includes high pressure piston and small piston, the diameter of high pressure piston be greater than the diameter of small piston and
The two is mutually permanently connected, and high pressure piston is slidably arranged in front interior cavity, and small piston is slidably arranged in rear interior cavity.
Described front interior cavity one end is provided with front interior cavity opening, and the other end and rear interior cavity one end are interconnected, and rear interior cavity is another
End is provided with rear interior cavity opening；Described high pressure piston one end is open by front interior cavity to be stretched out outside front interior cavity, the other end and small work
Plug one end is mutually permanently connected and is slidably arranged in front interior cavity；Described small piston one end and the high pressure piston other end is mutual
It is fixedly connected and is slidably arranged in rear interior cavity, the other end is open by rear interior cavity to be stretched out outside rear interior cavity.
Described small piston one end is provided with small piston screw hole, and the high pressure piston other end is provided with high pressure piston screw hole,
Piston fixed screw is provided between small piston screw hole and high pressure piston screw hole, piston fixed screw fixed function is in small work
It fills between screw hole and high pressure piston screw hole, to realize being fixedly connected for high pressure piston and small piston.
Front interior cavity positionable wall is provided on the front interior cavity, high pressure piston is slidably positioned on front interior cavity positionable wall；It is described
Rear interior cavity on be provided with rear interior cavity positionable wall, small piston is slidably positioned on rear interior cavity positionable wall.
Ipsilateral on the front interior cavity positionable wall to be provided with an axial hole, the middle part outer wall of cylinder body is ipsilateral to be provided with one
Radial hole, axial hole and radial hole are interconnected and form oil inlet and outlet；It is ipsilateral on rear interior cavity positionable wall to be provided with an axial direction
Gap, the middle part outer wall of cylinder body is ipsilateral to be provided with a radial hole, and axial slits and radial hole are interconnected and are formed and passed in and out
Hydraulic fluid port.
It is additionally provided with pilot hole on the high pressure piston, is arranged on pilot hole in guideway；The front interior cavity positioning
Guiding axis and guiding axis fixed screw are provided on wall, guiding axis is fixed at front interior cavity by guiding axis fixed screw and positions
On wall；The high pressure piston is slidably positioned on the guiding axis of front interior cavity positionable wall by guideway.
The front interior cavity and rear interior cavity are additionally provided with intermediate inner cavity, and the diameter of front interior cavity is greater than the diameter of intermediate inner cavity, in
Between inner cavity diameter be greater than rear interior cavity diameter；The small piston axial cross section is in convex, the small position of diameter and high pressure
Piston is fixedly connected and is slidably arranged in intracavitary in centre, and the big position of diameter is slidably arranged in rear interior cavity.
O-ring groove, wear ring groove, sealing ring are also respectively provided on the front interior cavity, rear interior cavity and intermediate inner cavity
Sealing ring, wear ring are respectively arranged on groove and wear ring groove；The high pressure piston is slided by sealing ring, wear ring
It is arranged in front interior cavity, the small position of small piston diameter is slidably arranged in intracavitary in centre, small piston by sealing ring, wear ring
The big position of diameter is slidably arranged in rear interior cavity by sealing ring, wear ring.
The cylinder body is forged by No. 45 steel parts；The high pressure piston and small piston respectively by steel part forge and
At the two is in hollow setting respectively.
The utility model redesigns high-voltage oil cylinder from structure by the improvement of above structure, eliminates existing
There are the oil cylinder front/rear cover in technology and piston rod setting, rear phase is independently arranged using the different high pressure piston of diameter and small piston
It is mutually fixed to form a component, while high pressure piston and small piston are hollow setting, while cylinder body is using of different sizes straight
The inner cavity of diameter is arranged, and is connect respectively with high pressure piston and small piston by moving member, active force is also directly by high pressure piston and small work
Plug passes to stress part, reduces the space of the piston rod transmission force of the prior art, while cylinder body and high pressure piston and small work
Plug separately constitutes two sealing inner cavities, and completes the movement and power output of two different directions.Moreover, the oil inlet and outlet of cylinder body exists
The same side setting, stress balance, hydraulic oil pipe is artistically decorated, easy to connect, it is small to be particularly suitable for oil cylinder stroke requirement, but require
The king-sized occasion of oil cylinder power output uses, such as the movement of injection molding machine high-voltage lock mould and high pressure die sinking movement.
Compared with prior art, it has the advantage that
One, this structure is made of cylinder body, high pressure piston and small piston, eliminate the prior art oil cylinder front/rear cover and
Piston rod, high pressure piston and small piston play the role of piston and piston rod simultaneously, extend and retract without reserved piston rod
Space shortens the length of entire oil cylinder.
Two, cylinder body is arranged using the inner cavity of diameter of different sizes, and the big part of diameter forms seal chamber with high pressure piston
Body generates big pressure, and the small part of diameter and small piston composition seal cavity generate small pressure, and complete two different directions and
The power output of size requirements；Meanwhile oil inlet and outlet is arranged and in the medium position of oil cylinder, stress balance, hydraulic oil in the same side
Pipe is artistically decorated, easy to connect, and it is small to be particularly suitable for oil cylinder stroke requirement, but the king-sized occasion of oil cylinder power output is required to use.
Three, cylinder body is made using No. 45 steel forgings, and centre is emptied part and can directly be forged, and high pressure piston and small piston are then
It is forged and is processed using steel part, high pressure oil cylinder body is made using No. 45 steel forgings, and the two is all made of hollow setting, therefore can greatly save
Material improves stock utilization.
Four, since each sealing element groove requires machining accuracy high, piston is divided to high pressure piston and small piston different-diameter two
After point, part integrally becomes smaller, lightens, and machining accuracy is easily guaranteed that, each section groove dimensions is examined to be more easier, to be easier
Guarantee the qualification rate of part.
Five, since sealing element belongs to vulnerable part, failure rate is higher, using that can wear after a long time, causes under sealing performance
Drop when needing replacing sealing element at this time, only need to remove high pressure piston from cylinder body, without removing entire cylinder body, machine
Device later period maintenance is convenient.
In terms of comprehensive, with simple and reasonable, volume and length are few, weight is low, each part connection it is compact, manufacture at
This low, easy to produce, Yi Shixian and it is safe and reliable the features such as, it is practical.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the prior art.
Fig. 2 is the decomposition texture schematic diagram of the utility model first embodiment.
Fig. 3 is the assembling structure schematic diagram of the utility model first embodiment.
Fig. 4 is the assembling structure schematic diagram (side view) of the utility model first embodiment.
Fig. 5 is to split structural schematic diagram (side view) along E-E line in Fig. 4.
Fig. 6 is enlarged structure schematic diagram at the A in Fig. 5.
Fig. 7 is enlarged structure schematic diagram at the B in Fig. 5.
Fig. 8 is enlarged structure schematic diagram at the C in Fig. 5.
Fig. 9 is to split structural schematic diagram (side view) along E-F line in Fig. 4.
Specific embodiment
The utility model is further described with reference to the accompanying drawings and embodiments.
Referring to Fig. 1-Fig. 9, the high pressure composite oil cylinder structure of this injection molding machine, including cylinder body 1 and piston rod assembly, cylinder body
1 is internally provided with front interior cavity 8 and rear interior cavity 9, and the diameter of front interior cavity 8 is greater than the diameter of rear interior cavity 9 and the two is interconnected；Institute
The piston rod assembly stated includes high pressure piston 2 and small piston 3, and the diameter of high pressure piston 2 is greater than the diameter and the two of small piston 3
It is mutually permanently connected, high pressure piston 2 is slidably arranged in front interior cavity 8, and small piston 3 is slidably arranged in rear interior cavity 9.
Further speaking, 8 one end of front interior cavity is provided with front interior cavity opening, and the other end and 9 one end of rear interior cavity are interconnected, after
9 other end of inner cavity is provided with rear interior cavity opening；Described 2 one end of high pressure piston is open by front interior cavity to be stretched out outside front interior cavity 8, separately
One end and 3 one end of small piston are mutually permanently connected and are slidably arranged in front interior cavity 8；Described 3 one end of small piston and high pressure is living
It fills in 2 other ends to be mutually permanently connected and be slidably arranged in rear interior cavity 9, the other end is open by rear interior cavity stretches out rear interior cavity 9
Outside.
Further speaking, 3 one end of small piston is provided with small piston screw hole, and it is living that 2 other end of high pressure piston is provided with high pressure
Screw hole is filled in, piston fixed screw 7 is provided between small piston screw hole and high pressure piston screw hole, piston fixed screw 7 is solid
It is set for being used between small piston screw hole and high pressure piston screw hole, to realize being fixedly connected for high pressure piston 2 and small piston 3.
Further speaking, front interior cavity positionable wall 10 is provided on front interior cavity 8, it is fixed that high pressure piston 2 is slidably positioned at front interior cavity
On the wall 10 of position；Rear interior cavity positionable wall 11 is provided on the rear interior cavity 9, small piston 3 is slidably positioned at rear interior cavity positionable wall 11
On.
Further speaking, ipsilateral on front interior cavity positionable wall 10 to be provided with an axial hole 12, the middle part outer wall of cylinder body 1 is same
Side is provided with a radial hole 13, and axial hole 12 and radial hole 13 are interconnected and form oil inlet and outlet；Rear interior cavity positionable wall 11
Above ipsilateral to be provided with an axial slits 17, the middle part outer wall of cylinder body 1 is ipsilateral to be provided with a radial hole 18, axial slits 17
It is interconnected with radial hole 18 and forms oil inlet and outlet.
Further speaking, it is additionally provided with pilot hole 14 on high pressure piston 2, is arranged on pilot hole 14 in guideway 6；It is described
Front interior cavity positionable wall 10 on be provided with guiding axis 4 and guiding axis fixed screw 5, guiding axis 4 is solid by guiding axis fixed screw 5
It is fixed to be arranged on front interior cavity positionable wall 10；The high pressure piston 2 is slidably positioned at front interior cavity positionable wall 10 by guideway 6
Guiding axis 4 on.
Further speaking, front interior cavity 8 and rear interior cavity 9 are additionally provided with intermediate inner cavity, and the diameter of front interior cavity 8 is greater than intermediate inner cavity
Diameter, the diameter of intermediate inner cavity is greater than the diameter of rear interior cavity 9；3 axial cross section of small piston is in convex, and diameter is small
Position and high pressure piston 2 are fixedly connected and are slidably arranged in intracavitary in centre, and the big position of diameter is slidably arranged in rear interior cavity 9
It is interior.
Further speaking, o-ring groove 15, wear ring are also respectively provided on front interior cavity 8, rear interior cavity 9 and intermediate inner cavity
Sealing ring, wear ring are respectively arranged on groove 16, o-ring groove 15 and wear ring groove 16；The high pressure piston 2 is logical
Cross sealing ring, wear ring is slidably arranged in front interior cavity 8, the small position of 3 diameter of small piston by sealing ring, wear ring sliding set
Set intracavitary in centre, the big position of 3 diameter of small piston is slidably arranged in rear interior cavity 9 by sealing ring, wear ring.
Further speaking, cylinder body 1 is forged by No. 45 steel parts；The high pressure piston 2 and small piston 3 is respectively by steel
Part forges, and the two is in hollow setting respectively.
Wherein, in Fig. 9 arrow X-direction indicate high pressure piston 2 activity direction, arrow Y-direction indicate small piston 3 activity
Direction, arrow Z-direction indicate the activity direction of disengaging oil.
Basic principles, main features, and advantages of the present invention has been shown and described above.Ability
The technical staff in domain should be recognized that the present utility model is not limited to the above embodiments, described in the above embodiment and specification
Only illustrate the principles of the present invention, the utility model also has on the premise of not departing from the spirit and scope of the utility model
Various changes and modifications, these various changes and improvements fall within the scope of the claimed invention.The requires of the utility model
Protection scope is defined by appended claims and its equivalent.
Meanwhile the drawings are for illustrative purposes only and are merely schematic diagrams, rather than pictorial diagram, it should not be understood as to this
The limitation of patent；In order to better illustrate the utility model embodiment, the certain components of attached drawing have omission, zoom in or out,
The size of actual product is not represented；It will be understood by those skilled in the art that certain known features and its explanation may save in attached drawing
Slightly it will be understood by.
Moreover, in the attached drawing of the utility model embodiment, the same or similar label correspond to the same or similar components；?
In the description of the utility model, it is to be understood that if having term " on ", "lower", "left", "right", "vertical", "horizontal", " cross
To ", " longitudinal direction ", "top", "bottom", "inner", the instructions such as "outside" orientation or positional relationship be based on orientation or position shown in the drawings
Relationship is set, is merely for convenience of describing the present invention and simplifying the description, rather than the device or element of indication or suggestion meaning
It must have a particular orientation, be constructed and operated in a specific orientation, therefore the term for describing positional relationship in attached drawing is only used for
Exemplary illustration should not be understood as the limitation to this patent.
Claims (9)
1. a kind of high pressure composite oil cylinder structure of injection molding machine, including cylinder body (1) and piston rod assembly, it is characterised in that: oil cylinder
Body (1) is internally provided with front interior cavity (8) and rear interior cavity (9), and the diameter of front interior cavity (8) is greater than the diameter and the two of rear interior cavity (9)
It is interconnected；The piston rod assembly includes high pressure piston (2) and small piston (3), and the diameter of high pressure piston (2) is greater than small work
The diameter and the two for filling in (3) are mutually permanently connected, and high pressure piston (2) is slidably arranged in front interior cavity (8), small piston (3) sliding
Setting is in rear interior cavity (9).
2. the high pressure composite oil cylinder structure of injection molding machine according to claim 1, it is characterised in that: described front interior cavity (8) one end
It is provided with front interior cavity opening, the other end and rear interior cavity (9) one end are interconnected, and rear interior cavity (9) other end is provided with rear interior cavity and opens
Mouthful；Described high pressure piston (2) one end is open by front interior cavity stretches out front interior cavity (8) outside, the other end and small piston (3) one end phase
It is mutually fixedly connected and is slidably arranged in front interior cavity (8)；Described small piston (3) one end and high pressure piston (2) other end are mutual
It is fixedly connected and is slidably arranged in rear interior cavity (9), the other end is open by rear interior cavity stretches out rear interior cavity (9) outside.
3. the high pressure composite oil cylinder structure of injection molding machine according to claim 2, it is characterised in that: described small piston (3) one end
It is provided with small piston screw hole, high pressure piston (2) other end is provided with high pressure piston screw hole, and small piston screw hole and high pressure are living
It is provided with piston fixed screw (7) between plug screw hole, piston fixed screw (7) fixed function is in small piston screw hole and high pressure
Between piston screw hole, to realize being fixedly connected for high pressure piston (2) and small piston (3).
4. the high pressure composite oil cylinder structure of injection molding machine according to claim 3, it is characterised in that: set on the front interior cavity (8)
It is equipped with front interior cavity positionable wall (10), high pressure piston (2) is slidably positioned on front interior cavity positionable wall (10)；The rear interior cavity (9)
On be provided with rear interior cavity positionable wall (11), small piston (3) is slidably positioned on rear interior cavity positionable wall (11).
5. the high pressure composite oil cylinder structure of injection molding machine according to claim 4, it is characterised in that: the front interior cavity positionable wall
(10) ipsilateral on to be provided with an axial hole (12), the middle part outer wall of cylinder body (1) is ipsilateral to be provided with a radial hole (13), axis
It is interconnected to hole (12) and radial hole (13) and forms oil inlet and outlet；It is ipsilateral on rear interior cavity positionable wall (11) to be provided with one
Axial slits (17), the middle part outer wall of cylinder body (1) is ipsilateral to be provided with a radial hole (18), axial slits (17) and radial hole
(18) it is interconnected and forms oil inlet and outlet.
6. the high pressure composite oil cylinder structure of injection molding machine according to claim 4, it is characterised in that: on the high pressure piston (2)
It is additionally provided with pilot hole (14), is arranged on pilot hole (14) in guideway (6)；It is arranged on the front interior cavity positionable wall (10)
There are guiding axis (4) and guiding axis fixed screw (5), guiding axis (4) is fixed at front interior cavity by guiding axis fixed screw (5)
On positionable wall (10)；The high pressure piston (2) is slidably positioned at the guiding of front interior cavity positionable wall (10) by guideway (6)
On axis (4).
7. the high pressure composite oil cylinder structure of injection molding machine according to claim 1, it is characterised in that: the front interior cavity (8) and after
Inner cavity (9) is additionally provided with intermediate inner cavity, and the diameter of front interior cavity (8) is greater than the diameter of intermediate inner cavity, and the diameter of intermediate inner cavity is greater than
The diameter of rear interior cavity (9)；Small piston (3) axial cross section is in convex, and the small position of diameter and high pressure piston (2) are fixed
Connection and it is slidably arranged in intracavitary in centre, the big position of diameter is slidably arranged in rear interior cavity (9).
8. the high pressure composite oil cylinder structure of injection molding machine according to claim 7, it is characterised in that: the front interior cavity (8), it is rear in
It is also respectively provided with o-ring groove (15), wear ring groove (16) on chamber (9) and intermediate inner cavity, o-ring groove (15) and resistance to
Bull ring groove is respectively arranged with sealing ring, wear ring on (16)；The high pressure piston (2) is slided by sealing ring, wear ring
Setting in the front interior cavity (8), the small position of small piston (3) diameter be slidably arranged in by sealing ring, wear ring it is intracavitary in centre,
The big position of small piston (3) diameter is slidably arranged in rear interior cavity (9) by sealing ring, wear ring.
9. the high pressure composite oil cylinder structure of any one of -8 injection molding machines according to claim 1, it is characterised in that: the cylinder body
(1) it is forged by No. 45 steel parts；The high pressure piston (2) and small piston (3) is forged by steel part respectively, the two difference
In hollow setting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821754276.9U CN209025911U (en) | 2018-10-26 | 2018-10-26 | A kind of high pressure composite oil cylinder structure of injection molding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821754276.9U CN209025911U (en) | 2018-10-26 | 2018-10-26 | A kind of high pressure composite oil cylinder structure of injection molding machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209025911U true CN209025911U (en) | 2019-06-25 |
Family
ID=66908260
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821754276.9U Active CN209025911U (en) | 2018-10-26 | 2018-10-26 | A kind of high pressure composite oil cylinder structure of injection molding machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209025911U (en) |
-
2018
- 2018-10-26 CN CN201821754276.9U patent/CN209025911U/en active Active
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| GR01 | Patent grant | ||
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Address after: No.6, Wusha section, Shunfan Road, Wusha community, Daliang Street office, Shunde District, Foshan City, Guangdong Province Patentee after: Guangdong Liansheng Precision Intelligent Equipment Technology Co.,Ltd. Address before: No.6, Wusha section, Shunfan Road, Wusha community, Daliang Street office, Shunde District, Foshan City, Guangdong Province Patentee before: LANSON PRECISION MACHINERY CO.,LTD. |
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| CP01 | Change in the name or title of a patent holder |