CN105909591B - The rapid mould opening-closing cylinder structure of plastic product molding machine - Google Patents
The rapid mould opening-closing cylinder structure of plastic product molding machine Download PDFInfo
- Publication number
- CN105909591B CN105909591B CN201610428256.1A CN201610428256A CN105909591B CN 105909591 B CN105909591 B CN 105909591B CN 201610428256 A CN201610428256 A CN 201610428256A CN 105909591 B CN105909591 B CN 105909591B
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- end cap
- cylinder
- piston rod
- oil cylinder
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- 239000004033 plastic Substances 0.000 title claims abstract description 39
- 229920003023 plastic Polymers 0.000 title claims abstract description 39
- 238000000465 moulding Methods 0.000 title claims abstract description 27
- 239000003921 oil Substances 0.000 claims abstract description 513
- 239000010720 hydraulic oil Substances 0.000 claims abstract description 23
- 238000006073 displacement reaction Methods 0.000 claims abstract description 16
- 230000008520 organization Effects 0.000 claims abstract description 16
- 238000007789 sealing Methods 0.000 claims description 46
- 239000002828 fuel tank Substances 0.000 claims description 24
- 239000012530 fluid Substances 0.000 claims description 12
- 238000012856 packing Methods 0.000 claims description 6
- 238000003780 insertion Methods 0.000 claims description 3
- 230000037431 insertion Effects 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 2
- 239000007788 liquid Substances 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 238000003825 pressing Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 13
- 238000000034 method Methods 0.000 description 11
- 230000007246 mechanism Effects 0.000 description 6
- 230000009471 action Effects 0.000 description 5
- 230000008569 process Effects 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000005265 energy consumption Methods 0.000 description 3
- 238000000071 blow moulding Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000004512 die casting Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000010137 moulding (plastic) Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/08—Characterised by the construction of the motor unit
- F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
- F15B15/16—Characterised by the construction of the motor unit of the straight-cylinder type of the telescopic type
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/20—Other details, e.g. assembly with regulating devices
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
A kind of rapid mould opening-closing cylinder structure of plastic product molding machine, including frame, frame include a pair left and right mould bases guide rails, left and right mould bases, a pair of cylinder rack guide rails, cylinder rack, a pair of lower pull bars；Rapid mould opening-closing cylinder structure includes oil cylinder, and oil cylinder includes oil cylinder set, the left and right end cap of oil cylinder；Large and small piston rod；Controlling organization；Feature：Also include oil tank, it is located at the top of frame, the outer wall of the left end for the small piston rod being placed in small piston rod accommodating chamber coordinates with the cavity wall of small piston rod accommodating chamber, when hydraulic oil introduces oil pocket in big piston rod, big piston rod to left dislocation and drives right mould frame to left dislocation from big piston rod, the displacement to the right of left mould frame and cylinder rack, it is left, right mould frame is in matched moulds motion state, work as a left side, during right mould frame locked mode, hydraulic oil is introduced right cylinder cavity by oil cylinder right end cap oil connection, small piston rod oil duct oil inlet and oil return interface is held in the state that the oil pocket into big piston rod introduces hydraulic oil.Reduce manufacture difficulty；Improve closure pressing speed.
Description
Technical field
The invention belongs to plastic molding machine technical field, and in particular to a kind of the quick of plastic product molding machine opens
Die cylinder structure.
Background technology
Above mentioned plastic products refer mainly to but are not definitely limited to refer to hollow plastic product, and hollow plastic product is for example each
Plant plastic containers, stacking bucket or even pallet（Pallet such as CN102407967B, CN103253442A and CN102009774B）, etc.
Deng.
As is known in the industry, plastic product molding machine is often molded a product and just needs once to be opened mould assembling action, can to this
With referring to CN101890772B（Mould opening-closing mechanism）、CN101890805B（The magnetic mold closing dress of hollow plastic product molding machine
Put）、CN102357948A（Embrace elbow formula clasp mould mechanism）、CN102848558B（The locked mode dress of hollow plastic product molding machine
Put）、CN103522528B（The Horizontal matched mould machine structure of blow molding）、CN103587109B（Hollow plastic product molding machine
Clamping apparatus）And CN103538244B（The clamping apparatus structure of hollow plastic product molding machine）, etc..
And then as is known in the industry, the volume for the plastic products to be molded is bigger, the oil of the structural system of clasp mould mechanism
The stroke of cylinder is also corresponding bigger, and in two half modules（I.e. a pair of half modules）Matched moulds need to be locked by enough clamp forces to it afterwards in place
It is fixed, to ensure the Forming Quality of plastic products, otherwise it is possible to shaping failure or matched moulds seam or overlap is left on plastic products.
In addition, there is causality between the speed speed of folding mould and the shaping efficiency of plastic products.
Previously, in order to meet the requirement of folding mould and locked mode, folding mould oil cylinder and Mode-locking oil cylinder are generally equipped with, with
Exemplified by two oil cylinders, an oil cylinder performs rapid mould opening-closing, and another oil cylinder takes on locked mode at a slow speed, and such structure can cause hydraulic pressure
System pipeline is complicated, especially needs to meet folding mould and locked mode requirement by high pressure and big flow, with this adaptable motor and
The power of oil pump is also corresponding larger, so as to both add the cost of complete plastic product molding machine, the increase of energy consumption is brought again
And the energy-saving economic spirit of economizing type that the current whole society advocates is contrary to, also it is unfavorable for use of the oil cylinder in reasonable length of service
Life-span.
Certainly, realize that rapid mould opening-closing can solve aforementioned techniques with less hydraulic oil with the low discharge of oil cylinder
Problem, and such technical information has been seen in disclosed Chinese patent literature, it is typical as CN104196813A recommends
" a kind of quick die cylinder for high speed die casting machine " and CN104653542A provide " large-scale blow molding machine folding mould
Cylinder structure ".
Above-mentioned CN104196813A is thus not only complicated as a result of outer cylinder and inner cylinder tube, and volume is big,
It is unfavorable for applying on the harsh plastic product molding machine of structure；Because above-mentioned CN104653542A is to be directed to plastic product forming
Machine design, thus the technique effect described in the 0005th section of its specification can be objectively cashed, but there is following shortcoming：Its
One, due to by small piston rod（Patent does not provide reference and component names）China is formed with cylinder block integral production
The "convex" shaped construction of Chinese character, thus difficulty of processing is big；Second, due to big piston rod（Patent claims piston rod）Only by its base portion
It is slidably matched between the inwall of piston area and the inwall of small piston rod, and other regions of big piston rod are the work alleged by patent
The internal diameter of plug oil cylinder is noticeably greater than the external diameter of small piston rod and forms a larger piston oil pocket, then on the one hand because of piston oil pocket
Volume is big and be not enough to be embodied in big piston rod is promoted under the hydraulic oil situation of low discharge and makes the phase of big piston rod fast offset
Effect is hoped, the speed of folding mould is still affected, on the other hand the action stability of big piston rod is also influenceed accordingly；Its
Three, according to the 0011st and 0012 section of its specification description and combine diagram and understand, due to the oil cylinder chamber in locked mode（Patent
Claim oil cylinder back cavity）Without the thrust to big piston rod, thus pressure during locked mode simply by virtue of oil pocket in big piston rod
Locked mode is realized in the effect of oil, and then clamp force is fragile, and the quality of locked mode effect can largely influence plastics system
The Forming Quality of product；Fourth, patent is not provided to entering, oil return opening implements the valve arrangement of control and with entering, oil return opening is connected
Oil pipe pipeline structure enlightenment, but these technology essential factors exactly ensure rapid mould opening-closing cylinder efficient whether and work
The key factor that one of reliability overlooks either of the two.
For above-mentioned prior art, still there is improved necessity, be that this applicant has made beneficial design, form following
The technical scheme that will be introduced, and test center in the case where taking secrecy provision in the application is simulated experiment, ties
Fruit is proved to be practicable.
The content of the invention
The task of the present invention, which is that offer is a kind of, to be helped small piston rod and big piston rod constituting split type group each other
Dress relation and using significantly reduces manufacture difficulty；Be conducive to the valve piston for accommodating the confession small piston rod being formed on big piston rod
The diameter of bar accommodating chamber and the external diameter of small piston rod each other good conformity and use in the state of fluid quantity delivered is substantially reduced
Make big piston rod together with the quick matched moulds of mould bases and ensure stability during big piston rod displacement and save energy consumption, be beneficial to
When big piston rod stretches in place and implements locked mode, the pressure collaboration in big piston rod in oil pocket is located at big piston rod and covers it with oil cylinder
Between the pressure that produces of cylinder intracavitary double pass through neat act on lowerly big piston rod and use and significantly increase clamp force and ensure plastics system
The Forming Quality of product and having is easy to ensure the oil inlet and oil return control effect of small piston rod oil duct and cylinder chamber well and uses embodiment
The rapid mould opening-closing cylinder structure of the plastic product molding machine of the reliability of big piston rod action.
What the task of the present invention was performed by, a kind of rapid mould opening-closing cylinder structure of plastic product molding machine, institute
The plastic product molding machine stated include a frame, the frame include a pair each other front and rear corresponding left mould frame guide rail, a pair it is same
The right mould frame guide rail corresponded to each other, the left mould frame being movably arranged on a pair of left mould frame guide rails, the right side corresponding to left mould frame
Side and be movably arranged on a pair of right mould frame guide rails a right mould frame, set corresponding to the right sides of a pair of right mould frame guide rails
And equally each other front and rear corresponding a pair of cylinder racks guide rail, the right side corresponding to right mould frame and be movably arranged at a pair of oil
A cylinder rack on cylinder frame guide rail, it is attached between left mould frame and the top of cylinder rack and front and rear corresponding a pair of pull-up each other
Bar and be attached between left mould frame and the bottom of cylinder rack and it is mutual before and after corresponding a pair lower pull bars；Described quickly opens
Die cylinder structure include an oil cylinder, the oil cylinder include an oil cylinder set, an oil cylinder left end cap and an oil cylinder right end cap, oil cylinder set with
The horizontally-arranged state support of level is in described cylinder rack, and the left end sealing that oil cylinder left end cap covers with oil cylinder coordinates, oil cylinder right end cap
Seal and coordinate with the right-hand member that oil cylinder covers, an oil cylinder left end is fixed with oil cylinder left end cap and positioned at the sidepiece of oil cylinder left end cap
Lid oil connection, an oil cylinder right end cap oil connection is fixed with oil cylinder right end cap and positioned at the sidepiece of oil cylinder right end cap,
And oil cylinder right end cap quick oil feeding hole just is being offered to the side of oil cylinder left end cap in oil cylinder right end cap；One big piston rod and one small
Piston rod, in the center of big piston rod and offers a small piston rod accommodating chamber, this is small positioned at the length direction of big piston rod
The right-hand member of piston rod accommodating chamber is not closed, and the left end of big piston rod is slidably matched and stretched with the oil cylinder left end cap
A mould bases connector is connected with after to the left side of oil cylinder left end cap, the mould bases connector is connected with the right-hand member of the right mould frame,
The right-hand member of big piston rod is provided with a piston, and the space between the left surface of the piston and the oil cylinder left end cap is configured to left cylinder
Chamber, and the space between the right flank of piston and the oil cylinder right end cap is configured to right cylinder cavity, described oil cylinder left end cap oil pipe
Joint is communicated with left cylinder cavity, and described oil cylinder right end cap oil connection and oil cylinder right end cap quick oil feeding hole and right cylinder cavity phase
Logical, the left end of small piston rod is placed in the small piston rod accommodating chamber, and the right-hand member of small piston rod leans out small piston rod receiving
The right-hand member of chamber and it is limited in the middle position corresponding to the oil cylinder right end cap on oil cylinder right end cap, in the small piston rod
The middle position of length direction offers a small piston rod oil duct, and the small piston rod oil duct is from the left end insertion of small piston rod to the right side
End, a small piston rod oil duct oil inlet and oil return interface, valve piston are provided with the position of the right-hand member port corresponding to small piston rod oil duct
Space between the left end end face of bar and the small piston rod accommodating chamber bottom wall of small piston rod accommodating chamber is configured in big piston rod oily
Chamber；One controlling organization, the controlling organization is arranged in the frame and right with the oil cylinder left end cap oil connection, oil cylinder
End cap oil connection, oil cylinder right end cap quick oil feeding hole and the connection of small piston rod oil duct oil inlet and oil return interface hydraulic oil pipe pipeline；
It is characterised by also including an oil tank, the oil tank is arranged on the frame in the position on the right side corresponding to the cylinder rack
Top and be connected with described controlling organization control, the small piston rod being placed in the small piston rod accommodating chamber
The outer wall of left end and the cavity wall of small piston rod accommodating chamber are slidably matched, when passing through institute by the small piston rod oil duct oil inlet and oil return interface
When stating small piston rod oil duct hydraulic oil being introduced into oil pocket in the big piston rod, the big piston rod is to left dislocation and by big piston
Bar drives the right mould frame to left dislocation, while described left mould frame and cylinder rack displacement to the right, left and right mould bases are in each other
The matched moulds motion state of opposite displacement, while the fluid in the left cylinder cavity leads to institute from the oil cylinder left end cap oil connection
The controlling organization stated, the oil cylinder right end cap quick oil feeding hole introduces fluid to right cylinder cavity, and when left and right mould bases tends to close each other
When holding together and implementing locked mode, oil cylinder right end cap oil connection introduces hydraulic oil described right cylinder cavity, and small piston rod oil
Road oil inlet and oil return interface continues to be held in the state that the oil pocket into the big piston rod introduces hydraulic oil.
In the specific embodiment of the present invention, at the middle part of the length direction of oil cylinder set and positioned at oil cylinder
Be fixed with the outer wall of set an oil cylinder set mounting flange, the oil cylinder cover mounting flange by oil cylinder cover mounting flange screw with it is described
Cylinder rack is fixed.
In another specific embodiment of the present invention, offered a pair on the left end inwall of the oil cylinder left end cap
Left end cap seal groove, is respectively embedded with the left sealing ring of a left end cap in this pair of left end cap seal groove, the big piston rod
The left sealing ring sealing of left end outer wall and left end cap coordinates, and oil cylinder left end cap middle part by left end cap fixing screws with it is described
The left end end face of oil cylinder set is fixed, and the right-hand member of oil cylinder left end cap is probeed into described left cylinder cavity and on the right side of the oil cylinder left end cap
Left end cap cylinder liner packing ring is provided with the outer wall of end, the inner wall sealing of the left end cap cylinder liner packing ring and left cylinder cavity coordinates.
In another specific embodiment of the present invention, the left end of the oil cylinder right end cap is inserted in the right cylinder cavity simultaneously
And a pair of right end cap sealing rings, this pair of right end cap sealing ring and right cylinder cavity are provided with the outer wall of the left end in the oil cylinder right end cap
Inner wall sealing coordinate.
In another specific embodiment of the present invention, being constituted on the left end end face of the big piston rod has a connection
Screw head, the right-hand member of the mould bases connector is connected with connecting screw rod head thread, and the left end of mould bases connector composition has a company
Joint pin shaft hole and a bushing is provided with the connector pin shaft hole, mould bases connector is by being placed in connector pin shaft hole
Interior connector bearing pin on the right side of the right mould frame with being articulated and connected.
The present invention also have a specific embodiment in, the big piston rod right-hand member and corresponding to described
The position on the right side of piston is fixed with a piston end cap by piston end cap screw, and one is provided with the inwall of the piston end cap
To piston end cap sealing ring, the right-hand member outer wall sealing of this pair of piston end cap sealing ring and the small piston rod coordinates, and in work
A piston for being used for the right side restriction to the piston is also screwed on plug end cap and limits nut, the piston limits nut and piston
Right flank patch touch.
In a still more specific embodiment of the invention, the big piston rod right-hand member and corresponding to described
The position in the left side of piston, which is constituted, has a piston to limit step, and the left surface of piston limits step sticker with the piston and touched, and is living greatly
A pair of pistons inner seal ring, this pair of piston inner seal ring and work are provided with stopper rod and in the position of the inwall corresponding to piston
The inner wall sealing of plug coordinates, and a piston ring and a pair of pistons exterior seal ring are provided with the outer wall of piston, and piston ring is located at one
To between piston exterior seal ring, and a pair of pistons exterior seal ring coordinates with the right-hand member inner wall sealing that the oil cylinder covers.
The present invention's and then in a specific embodiment, one is offered in the middle position of the oil cylinder right end cap small
Piston rod resigning hole, the right-hand member of the small piston rod is engaged with the small piston rod resigning hole, and on the right side of the small piston rod
A pair of small piston rod sealing rings are provided with the outer wall at end, the hole wall of this pair of small piston rod sealing ring and small piston rod resigning hole is close
Envelope coordinates, and the position that the right side of the oil cylinder right end cap is stretched in small piston rod is equipped with a small piston rod lock nut.
Described controlling organization includes oil pump, fuel tank, the first control in yet a further embodiment of the present invention
Valve processed, the second control valve, valve seat, the first check valve and the second check valve, oil pump is engaged with fuel tank, and oil pump passes through oil pump
First oil circuit is connected with the first control valve and is connected by the oil circuit of oil pump second with the second control valve, and fuel tank is set together with oil pump
In the frame, the fuel tank is connected by the oil circuit of fuel tank first with the first control valve and by the oil circuit of fuel tank second and second
Control valve is connected, and the first control valve and the second control valve are arranged on valve seat, and the first control valve passes through the first control valve
Pipeline is connected with described oil cylinder right end cap oil connection, and the second control valve by the oil inlet and oil return pipeline of control valve first with it is described
Oil cylinder left end cap oil connection connects and passed through the oil inlet and oil return pipeline of control valve second and described small piston rod oil duct oil inlet and oil return
Interface is connected, and valve seat is fixed in the frame in the position on the right side corresponding to the oil cylinder right end cap, and the first check valve is set
Put on the first described control valve pipeline, the second check valve is arranged in the described oil inlet and oil return pipeline of control valve second, described
Oil tank be connected by oil tank pipeline with described valve seat and by valve seat and the oil cylinder right end cap quick oil feeding hole
Communicate, an oil tank check valve is provided with oil tank pipeline, enter back in second check valve and the control valve first
Provided with one first control oil circuit between oil pipe line, and set between the oil tank check valve and the oil inlet and oil return pipeline of control valve first
There is one second control oil circuit.
The present invention again so that a specific embodiment in, offered on described valve seat a valve seat oil inlet with
And a pair of valve seat oil pipes are equipped, the oil tank pipeline is coupled with valve seat oil inlet, and valve seat oil inlet and a pair of valve seat oil
Pipe is communicated, a pair of valve seat oil pipes be connected with described oil cylinder right end cap quick oil feeding hole and with oil cylinder right end cap quick oil feeding hole
Communicate.
The technical scheme that the present invention is provided relative to one of technique effect of prior art, due to by large and small piston rod that
This constitutes split type individual components and carries out mutual cooperation again, thus can significantly reduce manufacture difficulty；Two, due to will be big
The cavity wall of the small piston rod accommodating chamber of piston rod and the left end outer wall of small piston rod have been carried out and have been slidably matched, thus are significantly reduced
The volume of oil pocket, only need to make big piston rod fast to the left together with right mould frame in the state of few fluid quantity delivered in big piston rod
Fast displacement, had both improved the closure pressing speed of left and right mould bases, and the action stability of big piston rod has been ensured again and can significantly have been saved
Save energy consumption；Three, when implementing locked mode due to completing matched moulds in left and right mould bases, because having tended to full oil condition in right cylinder cavity simultaneously
And small piston rod oil duct oil inlet and oil return interface is still in entering oil condition, thus oil cylinder right end cap oil connection only needs to introduce to right cylinder cavity
Minimal amount of hydraulic oil and excellent locked mode effect can be realized, and then ensure plastic products Forming Quality；Four, due to by controlling
Mechanism guarantee processed, with the oil inlet and oil return control effect of left and right cylinder chamber, thus can ensure the action of big piston rod to small piston rod oil duct
Reliability.
Brief description of the drawings
Fig. 1 is embodiments of the invention schematic diagram.
Fig. 2 is the detailed structure view of the quickly opening and closing mould oil cylinder shown in Fig. 1.
Fig. 3 is the schematic diagram of the controlling organization of the structural system of quickly opening and closing mould oil cylinder of the present invention.
Embodiment
In order to be more clearly understood from the technical spirit and beneficial effect of the present invention, applicant is below with embodiment
Mode elaborate, but to the description of embodiment be not the limitation to the present invention program, it is any according to structure of the present invention
Think made only formal rather than substantial equivalent transformation and be regarded as technical scheme category.
In the following description it is every be related to upper and lower, left and right, the directionality of front and rear or directionality concept be all
For the location status shown in Fig. 1 and Fig. 2, thus it can not be understood as to the special of the technical scheme of the invention provided
Limit.
Fig. 1 is referred to, a frame 7 of the structural system for belonging to plastic product molding machine is shown, the frame 7 includes a pair
Each other front and rear corresponding left mould frame guide rail 71, equally correspond to each other for a pair right mould frame guide rail 72, be movably arranged at a pair it is left
A left mould frame 73 on mould bases guide rail 71, the right side corresponding to left mould frame 73 and it is movably arranged at a pair of right mould frame guide rails 72
On a right mould frame 74, corresponding to a pair of right mould frame guide rails 72 right side set and same front and rear corresponding a pair of oil each other
Cylinder frame guide rail 75, the right side corresponding to right mould frame 74 and the cylinder rack being movably arranged on a pair of cylinder rack guide rails 75
76th, it is attached between left mould frame 73 and the top of cylinder rack 76 and front and rear corresponding a pair of upper connecting rods 77 and is attached at a left side each other
Corresponding a pair lower pull bars 78 before and after between mould bases 73 and the bottom of cylinder rack 76 and mutual.
From the signal for illustrating and combining Fig. 1 above：The bottom of left mould frame 73 and a pair of structures of left mould frame guide rail 71
Into guideway, the bottom of right mould frame 74 constitutes guideway, the bottom of cylinder rack 76 and a pair of oil cylinders with a pair of right mould frame guide rails 72
Frame guide rail 75 constitutes guideway, and according to professional general knowledge, in a state of use on the right side of left mould frame 73 i.e. towards right mould frame
74 side is fixed with left half module, and is fixed with right half module towards the side of left mould frame 73 in the left side of right mould frame 74.It is left and right
On the contrary the process that mould bases 73,74 closes up i.e. opposite displacement in opposite directions is commonly known as matched moulds process, then referred to as die sinking process.Matched moulds
Afterwards, foregoing left half module is mutually closed with right half module and implements locked mode, and the self-evident effect of locked mode is prevented to modeling
There is gap between left and right half module when material products are molded, so as to occur matched moulds seam on plastic products（Also referred to as spue line or matched moulds
Overlap）.
Refer to Fig. 2 and continuing with Fig. 1, show an oil cylinder 1 of rapid mould opening-closing cylinder structure system, the oil cylinder
1, which includes an oil cylinder, covers 11, one oil cylinder left end cap 12 and an oil cylinder right end cap 13, and oil cylinder set 11 is with the horizontally-arranged state support of level preceding
In the cylinder rack 76 stated, the left end sealing that oil cylinder left end cap 12 covers 11 with oil cylinder coordinates, and oil cylinder right end cap 13 covers 11 with oil cylinder
Right-hand member sealing coordinates, on oil cylinder left end cap 12 and positioned at the sidepiece of oil cylinder left end cap 12（That is the wall body of circumferencial direction）It is fixed
There is an oil cylinder left end cap oil connection 121, on oil cylinder right end cap 13 and positioned at the sidepiece of oil cylinder right end cap 13（That is circumference side
To wall body）It is fixed with an oil cylinder right end cap oil connection 131, and the side in oil cylinder right end cap 13 just to oil cylinder left end cap 12
Offer oil cylinder right end cap quick oil feeding hole 132（The present embodiment has a pair）；A big small piston rod 3 of piston rod 2 and one is shown,
In the center of big piston rod 2 and offer a small piston rod accommodating chamber 21, the valve piston positioned at the length direction of big piston rod 2
The right-hand member of bar accommodating chamber 21 is not closed, and the left end of big piston rod 2 is slidably matched and stretched with foregoing oil cylinder left end cap 12
A mould bases connector 4 is connected with behind the left side for opening up oil cylinder left end cap 12, the right-hand member of the mould bases connector 4 and foregoing right mould frame 74
Connection, is provided with a piston 22, between the left surface of the piston 22 and foregoing oil cylinder left end cap 12 in the right-hand member of big piston rod 2
Space is configured to left cylinder cavity 23, and the space between the right flank of piston 22 and foregoing oil cylinder right end cap 13 is configured to right cylinder cavity
24, foregoing oil cylinder left end cap oil connection 121 is communicated with left cylinder cavity 23, and foregoing oil cylinder right end cap oil connection 131 with
And oil cylinder right end cap quick oil feeding hole 132 is communicated with right cylinder cavity 24, the left end of small piston rod 3 is placed in foregoing small piston rod and accommodated
In chamber 21, and the right-hand member of small piston rod 3 leans out the right-hand member of small piston rod accommodating chamber 21 and corresponding to foregoing oil cylinder right end cap
13 middle position is limited on oil cylinder right end cap 13, and it is small to offer one in the middle position of the length direction of the small piston rod 3
Piston rod oil duct 31, the small piston rod oil duct 31 is from the left end insertion of small piston rod 3 to right-hand member, corresponding to small piston rod oil duct
The position of 31 right-hand member port is provided with a small piston rod oil duct oil inlet and oil return interface 32, left end end face and the small work of small piston rod 3
Space between the small piston rod accommodating chamber bottom wall 211 of stopper rod accommodating chamber 21 is configured to oil pocket 25 in big piston rod；Show one
Controlling organization 5（Also oil-feeding control mechanism can be claimed, it is as follows）, the controlling organization 5 be arranged in foregoing frame 7 and with foregoing oil
Cylinder left end cap oil connection 121, oil cylinder right end cap oil connection 131, oil cylinder right end cap quick oil feeding hole 132 and small piston rod
The hydraulic oil pipe pipeline of oil duct oil inlet and oil return interface 32 is connected.
The technical essential of the technical scheme provided as the present invention：Also include in the system of foregoing folding moulding oil cylinder structure
There is an oil tank 6, the oil tank 6 is arranged on the top of foregoing frame 7 simultaneously in the position on the right side corresponding to foregoing cylinder rack 76
And be connected with the foregoing control of controlling organization 5, the left end for the foregoing small piston rod 3 being placed in foregoing small piston rod accommodating chamber 21
Outer wall and the cavity wall of small piston rod accommodating chamber 21 be slidably matched.
Before hydraulic oil is introduced by foregoing small piston rod oil duct 31 by foregoing small piston rod oil duct oil inlet and oil return interface 32
When stating oil pocket 25 in big piston rod, foregoing big piston rod 2 to left dislocation and drives foregoing right mould frame 74 position to the left by big piston rod 2
Move, while foregoing left mould frame 73 and the displacement to the right of cylinder rack 76, left and right mould bases 73,74 are in the conjunction of displacement toward each other
Mould motion state, while the fluid in foregoing left cylinder cavity 23 leads to foregoing control from foregoing oil cylinder left end cap oil connection 121
Mechanism 5 processed, oil cylinder right end cap quick oil feeding hole 132 introduces fluid to right cylinder cavity 24, when left and right mould bases 73,74 tends to close each other
When holding together and implementing locked mode, hydraulic oil is introduced foregoing right cylinder cavity 24 and small piston rod oil duct by oil cylinder right end cap oil connection 131
Oil inlet and oil return interface 32 continues to be held in the state that the oil pocket 25 into foregoing big piston rod introduces hydraulic oil.It follows that in locked mode
Before, by entering the low discharge of oil pocket 25 in big piston rod（But pressure is big）Hydraulic oil realize the fast bit of big piston rod 2
Move, embody the corresponding technique effect described in the superincumbent technique effect column of applicant.
Please emphasis see Fig. 1, the middle part of 11 length direction is covered in foregoing oil cylinder and covers solid on 11 outer wall positioned at oil cylinder
Surely an oil cylinder covers mounting flange 111, the oil cylinder covers mounting flange 111 by covering mounting flange around oil cylinder with space state
The oil cylinder set mounting flange screw 1111 of circumferencial direction distribution is fixed with foregoing cylinder rack 76.
A pair of left end cap seal grooves 122 are offered on the left end inwall of foregoing oil cylinder left end cap 12, in this pair of left end
The left sealing ring 1221 of a left end cap is respectively embedded with lid seal groove 122, the left end outer wall and left end cap of foregoing big piston rod 2 are left
The sealing of sealing ring 1221 coordinates, and the middle part of oil cylinder left end cap 12 passes through left end cap fixing screws 123 and foregoing oil cylinder set 11
Left end end face fix, the right-hand member of oil cylinder left end cap 12 is probeed into（Insert）In foregoing left cylinder cavity 23 and in the oil cylinder left end
Left end cap cylinder liner packing ring 124 is provided with the right-hand member outer wall of lid 12, the left end cap cylinder liner packing ring 124 is interior with left cylinder cavity 23
Wall sealing coordinates.
Please continue to refer to Fig. 1, the left end of foregoing oil cylinder right end cap 13 is inserted in foregoing right cylinder cavity 24 and in the oil cylinder right-hand member
A pair of right end cap sealing rings 133 are provided with the outer wall of the left end of lid 13, this pair of right end cap sealing ring 133 is interior with right cylinder cavity 24
Wall sealing coordinates.
Being constituted on the left end end face of foregoing big piston rod 2 has a connecting screw rod first 26, the right-hand member of foregoing mould bases connector 4
It is threadedly coupled with connecting screw rod first 26, and the left end of mould bases connector 4 composition has a connector pin shaft hole 41 and in the connection
A bushing 411 is provided with head pin shaft hole 41, and mould bases connector 4 passes through the connector bearing pin that is placed in connector pin shaft hole 41
412 are articulated and connected with the right side of foregoing right mould frame 74.It is self-evident, connect on the right side of right mould frame 74 and corresponding to mould bases
First 4 position is welded with a pair of connector axis pin bases（Not shown in figure）, on a pair of connector axis pin bases and corresponding
Position offers a connector axis pin base pin-and-hole, the left end of foregoing mould bases connector 4 correspond to a pair of connector axis pin bases it
Between and foregoing connector bearing pin 412 insert in the connector axis pin base pin-and-hole on a pair of connector axis pin bases so that mould
Frame connector 4 is articulated and connected with a pair of connector axis pin bases.
Foregoing big piston rod 2 right-hand member and pass through piston end cap spiral shell in the position on the right side corresponding to foregoing piston 22
Nail 271 is fixed with a piston end cap 27, and a pair of pistons end cap seal circle 272 is provided with the inwall of the piston end cap 27, should
Cooperation is sealed to the right-hand member outer wall of piston end cap sealing ring 272 and foregoing small piston rod 3, and also screwed on piston end cap 27
There is a piston for being used for the right side restriction to foregoing piston 22 to limit nut 273, the piston limits the right side of nut 273 and piston 22
Side, which is pasted, touches.
Right-hand member in foregoing big piston rod 2 and the position in the left side corresponding to foregoing piston 22, which are constituted, piston limit
Determine step 28, the left surface of piston 22 limits the patch of step 28 with the piston and touched, on big piston rod 2 and corresponding to piston 22
The position of inwall be provided with a pair of pistons inner seal ring 29, the inner wall sealing of this pair of piston inner seal ring 29 and piston 22 is matched somebody with somebody
Close, and a piston ring 221 and a pair of pistons exterior seal ring 222 are provided with the outer wall of piston 22, piston ring 221 is located at a pair of work
Beyond the Great Wall between sealing ring 222, and the right-hand member inner wall sealing that a pair of pistons exterior seal ring 222 covers 11 with foregoing oil cylinder coordinates.Thus
Understand, foregoing piston 22 is limited at piston and limited between step 28 and piston restriction nut 273.
A small piston rod resigning hole 134 is offered in the middle position of foregoing oil cylinder right end cap 13, foregoing small piston rod 3
Right-hand member is engaged with the small piston rod resigning hole 134, and small a pair work is provided with the outer wall of the right-hand member in the small piston rod 3
Rod seal circle 33, the hole wall sealing of this pair of small piston rod sealing ring 33 and small piston rod resigning hole 134 coordinates, in small piston rod
3 positions for being stretched over the right side of foregoing oil cylinder right end cap 13 are equipped with a small piston rod lock nut 34.
Refer to Fig. 3 and combine Fig. 1 and Fig. 2, foregoing controlling organization 5 includes oil pump 51, fuel tank 52, the first control valve
53rd, the second control valve 54, valve seat 55, the first check valve 56 and the second check valve 57, oil pump 51 are engaged with fuel tank 52, and oil
Pump 51 is connected by the first oil circuit of oil pump 511 with the first control valve 53 and by oil pump the second oil circuit 512 and the second control valve
54 connections, fuel tank 52 is arranged in foregoing frame 7 together with oil pump 51, and the fuel tank 52 is controlled by the first oil circuit of fuel tank 521 and first
Valve 53 processed is connected and is connected by the second oil circuit of fuel tank 522 with the second control valve 54, the first control valve 53 and the second control
Valve 54 is arranged on valve seat 55, and the first control valve 53 passes through the first control valve pipeline 531 and foregoing oil cylinder right end cap oil
Pipe joint 131 is connected, and the second control valve 54 is connect by the first oil inlet and oil return pipeline of control valve 541 with foregoing oil cylinder left end cap oil pipe
First 121 connect and are connected by the second oil inlet and oil return pipeline of control valve 542 with foregoing small piston rod oil duct oil inlet and oil return interface 32,
Valve seat 55 is fixed in foregoing frame 7 in the position on the right side corresponding to foregoing oil cylinder right end cap 13, and the first check valve 56 is set
On the first control valve pipeline 531, the second check valve 57 is arranged in the second oil inlet and oil return pipeline of control valve 542, foregoing store oil
Case 6 is connected by oil tank pipeline 61 with foregoing valve seat 55 and by valve seat 55 and foregoing oil cylinder right end cap quick oil feeding hole
132 are communicated, and an oil tank check valve 611 is provided with oil tank pipeline 61, in foregoing second check valve 57 and foregoing control
Provided with one first control oil circuit 571 between the first oil inlet and oil return pipeline of valve 541, and in foregoing oil tank check valve 611 and control valve
Provided with one second control oil circuit 6111 between first oil inlet and oil return pipeline 541.
As shown in Figure 1, a valve seat oil inlet 551 is offered on foregoing valve seat 55 and a pair of valve seat oil pipes are equipped
552, foregoing oil tank pipeline 61 is coupled with valve seat oil inlet 551, and valve seat oil inlet 551 is communicated with a pair of valve seat oil pipes 552,
A pair of valve seat oil pipes be connected with foregoing oil cylinder right end cap quick oil feeding hole 132 and with oil cylinder right end cap quick oil feeding hole 132
Communicate.As preferred scheme, an overflow communicated with the oil tank chamber of oil tank is set to connect on the top of foregoing oil tank 6
Mouthful, an oil return interface communicated with fuel tank chamber is set on fuel tank 52, set between the oil return interface and foregoing flush connection
Put a backflow oil pipe.
When left and right mould bases 73,74 matched moulds, oil pump 51 works（That is pump oil）, hydraulic oil（That is fluid）Successively through oil pump
Two oil circuits 512, the second control valve 54, control valve the second oil inlet and oil return pipeline 542, the second check valve 57, small piston rod oil duct enter back
Oily interface 32 and small piston rod oil duct 31 enter oil pocket 25, the hydraulic fluid pressure in oil pocket 25 in big piston rod in big piston rod
Force big piston rod 2 to left dislocation, drive right mould frame 74 to follow a pair of right mould frame guide rails 72 to left dislocation through mould bases connector 4,
Cylinder rack 76 follows a pair of displacements to the right of cylinder rack guide rail 75 simultaneously, because left mould frame 73 is under a pair of upper connecting rods 77 and a pair
Pull bar 78 links with cylinder rack 76, thus the displacement to the right of drive left mould frame 73 while 76 displacement to the right of cylinder rack, final table
It is now left and right mould bases 73,74 opposite displacements, i.e., towards mutual matched moulds or the direction displacement closed up.At the same time, i.e., living greatly
Stopper rod 2 is to while left dislocation, and the fluid in left cylinder cavity 23 is drawn from oil cylinder left end cap oil connection 121, and successively through control
Valve the first oil inlet and oil return pipeline 541, the second control valve 54 and the second oil pipe of fuel tank lead to fuel tank 52 522 times, also at the same time, due to
During big piston rod 2 is to left dislocation, right cylinder cavity 24 has been in negative pressure state, while the fluid in oil tank 6 is passed through successively
Oil tank check valve 611（Due to being that negative pressure is opened）, the valve seat oil inlet 551 of oil tank pipeline 61, valve seat oil pipe 552 and oil cylinder it is right
End cap quick oil feeding hole 132（A pair）Add in right cylinder cavity 24.In this process, only minimal amount of fluid is needed to enter piston rod
Interior oil pocket 25 just can promote big piston rod 2, and the energy-conservation of oil pump 51 is significant and accelerates closure pressing speed.
When the left and right half module on left and right mould bases 73,74 tends to close up and when implementing locked mode, the pump oil of oil pump 51, hydraulic oil according to
It is secondary oily through oil pump the first oil circuit 511, the first control valve 53, the first control valve pipeline 531, the first check valve 56 and oil cylinder right end cap
Pipe joint 131 is introduced in right cylinder cavity 24, and big piston rod 2 and then left lateral are promoted with big pressure.Big piston rod 2 is set to play preferable lock
Mould is acted on, because while oil cylinder right end cap oil connection 131 introduces hydraulic oil to right cylinder cavity 24, oil pump 51 is in continuation pair
The oil condition of oil pocket 25 in big piston rod.Due to the oil return during locked mode as previously described, thus repeat no more.
When to be molded, come from the hydraulic oil of oil pump 51 successively through oil pump the second oil circuit 512, the second control valve 54, control
The first oil inlet and oil return pipeline of valve 541, oil cylinder left end cap oil connection 121 and left cylinder cavity 23, promote big piston rod 2 to move to right, same to time control
Hydraulic oil in the first oil inlet and oil return pipeline of valve 541 processed opens the respectively through the first control control oil circuit 611 of oil circuit 571 and second
Two check valves 57 and oil tank check valve 611, make the oil in big piston rod in oil pocket 25 successively through small piston rod oil duct 31, small work
Stopper rod oil duct oil inlet and oil return interface 32, the second check valve 57, control valve the second oil inlet and oil return pipeline 542, the second control valve 54 and fuel tank
Second oil circuit 522 backs into fuel tank 52, and the oil in right cylinder cavity 24 is successively through oil cylinder right end cap quick oil feeding hole 132, valve seat oil pipe
552nd, oil tank pipeline 61 and oil tank check valve 611 back into oil tank 6, so that the quick displacement to the right of big piston rod 2 is realized,
Making left and right mould bases 73,74, quickly reprimand is opened.
In summary, the technical scheme that the present invention is provided overcomes the deficiency in prior art, has favorably accomplished invention
Task, has objectively cashed the technique effect described in the superincumbent technique effect column of applicant.
Claims (10)
1. a kind of rapid mould opening-closing cylinder structure of plastic product molding machine, described plastic product molding machine includes a frame
(7), the frame (7) includes that a pair front and rear corresponding left mould frame guide rail (71), the right mould frame equally corresponded to each other for a pair are led each other
Rail (72), the left mould frame (73) being movably arranged on a pair of left mould frame guide rails (71), the right side corresponding to left mould frame (73)
And it is movably arranged at the right mould frame (74) on a pair of right mould frame guide rails (72), corresponding to a pair of right mould frame guide rails (72)
Right side set and equally each other front and rear corresponding a pair of cylinder racks guide rail (75), the right side corresponding to right mould frame (74) and
The cylinder rack (76) that is movably arranged on a pair of cylinder rack guide rails (75), it is attached at left mould frame (73) and cylinder rack (76)
Front and rear corresponding a pair of upper connecting rods (77) and it is attached at the bottom of left mould frame (73) and cylinder rack (76) between top and each other
Between and it is mutual before and after corresponding a pair lower pull bars (78)；Described rapid mould opening-closing cylinder structure includes an oil cylinder (1),
The oil cylinder (1) includes an oil cylinder set (11), an oil cylinder left end cap (12) and an oil cylinder right end cap (13), and oil cylinder set (11) is with level
Horizontally-arranged state support is in described cylinder rack (76), and the left end sealing of oil cylinder left end cap (12) and oil cylinder set (11) coordinates, oil
The right-hand member sealing of cylinder right end cap (13) and oil cylinder set (11) coordinates, on oil cylinder left end cap (12) and positioned at oil cylinder left end cap
(12) sidepiece is fixed with an oil cylinder left end cap oil connection (121), on oil cylinder right end cap (13) and positioned at oil cylinder right-hand member
The sidepiece of lid (13) is fixed with an oil cylinder right end cap oil connection (131), and in oil cylinder right end cap (13) just to oil cylinder left end cap
(12) side offers oil cylinder right end cap quick oil feeding hole (132)；One big piston rod (2) and a small piston rod (3), are living greatly
Central and positioned at big piston rod (2) the length direction of stopper rod (2) offers a small piston rod accommodating chamber (21), the valve piston
The right-hand member of bar accommodating chamber (21) is not closed, and the left end of big piston rod (2) is slidably matched simultaneously with the oil cylinder left end cap (12)
And a mould bases connector (4), the mould bases connector (4) and the right side are connected with after the left side of oil cylinder left end cap (12) is stretched over
The right-hand member connection of mould bases (74), is provided with a piston (22), the left surface of the piston (22) and institute in the right-hand member of big piston rod (2)
State the space between oil cylinder left end cap (12) and be configured to left cylinder cavity (23), and the right flank of piston (22) and the oil cylinder right end cap
(13) space between is configured to right cylinder cavity (24), and described oil cylinder left end cap oil connection (121) is communicated with left cylinder cavity (23),
And described oil cylinder right end cap oil connection (131) and oil cylinder right end cap quick oil feeding hole (132) is communicated with right cylinder cavity (24),
The left end of small piston rod (3) is placed in the small piston rod accommodating chamber (21), and the right-hand member of small piston rod (3) leans out valve piston
The right-hand member of bar accommodating chamber (21) and it is limited to oil cylinder right end cap in the middle position corresponding to the oil cylinder right end cap (13)
(13) on, a small piston rod oil duct (31), the small piston rod are offered in the middle position of the length direction of the small piston rod (3)
Oil duct (31) is from the left end insertion of small piston rod (3) to right-hand member, the position in the right-hand member port corresponding to small piston rod oil duct (31)
Install and be equipped with a small piston rod oil duct oil inlet and oil return interface (32), left end end face and the small piston rod accommodating chamber of small piston rod (3)
(21) the space between small piston rod accommodating chamber bottom wall (211) is configured to oil pocket (25) in big piston rod；One controlling organization (5)
, the controlling organization (5) be arranged in the frame (7) and with the oil cylinder left end cap oil connection (121), oil cylinder right end cap
Oil connection (131), oil cylinder right end cap quick oil feeding hole (132) and small piston rod oil duct oil inlet and oil return interface (32) hydraulic oil pipe
Pipeline is connected；Characterized by further comprising there is an oil tank (6), the oil tank (6) is on the right side corresponding to the cylinder rack (76)
The position of side is arranged on the top of the frame (7) and is connected with described controlling organization (5) control, is placed in the small work
The cavity wall of the outer wall of the left end of the small piston rod (3) in stopper rod accommodating chamber (21) and small piston rod accommodating chamber (21), which is slided, matches somebody with somebody
Close, when by the small piston rod oil duct (31) that hydraulic oil introducing is described by the small piston rod oil duct oil inlet and oil return interface (32)
In big piston rod during oil pocket (25), the big piston rod (2) to left dislocation and drives the right mould frame (74) by big piston rod (2)
To left dislocation, while described left mould frame (73) and cylinder rack (76) displacement to the right, left and right mould bases (73,74) are in each other
The matched moulds motion state of opposite displacement, while fluid in the left cylinder cavity (23) is from the oil cylinder left end cap oil connection
(121) described controlling organization (5) is led to, the oil cylinder right end cap quick oil feeding hole (132) introduces oil to right cylinder cavity (24)
Liquid, and when left and right mould bases (73,74) tends to close up each other and when implementing locked mode, oil cylinder right end cap oil connection (131) is by high pressure
Oil introduces described right cylinder cavity (24), and the small piston rod oil duct oil inlet and oil return interface (32) continues to be held in the big work
Oil pocket (25) introduces the state of hydraulic oil in stopper rod.
2. the rapid mould opening-closing cylinder structure of plastic product molding machine according to claim 1, it is characterised in that described
The middle part of the length direction of oil cylinder set (11) and positioned at oil cylinder set (11) outer wall on be fixed with an oil cylinder set mounting flange
(111), oil cylinder set mounting flange (111) covers mounting flange screw (1111) by oil cylinder and fixed with the cylinder rack (76).
3. the rapid mould opening-closing cylinder structure of plastic product molding machine according to claim 1, it is characterised in that described
A pair of left end cap seal grooves (122) are offered on the left end inwall of oil cylinder left end cap (12), in this pair of left end cap seal groove
(122) the left sealing ring of a left end cap (1221), left end outer wall and the left sealing of left end cap of the big piston rod (2) are respectively embedded with
(1221) sealing is enclosed to coordinate, and the middle part of oil cylinder left end cap (12) passes through left end cap fixing screws (123) and the oil cylinder set
(11) left end end face is fixed, and the right-hand member of oil cylinder left end cap (12) is probeed into described left cylinder cavity (23) and in the oil cylinder left end
Left end cap cylinder liner packing ring (124) is provided with the right-hand member outer wall for covering (12), the left end cap cylinder liner packing ring (124) and left cylinder cavity
(23) inner wall sealing coordinates.
4. the rapid mould opening-closing cylinder structure of plastic product molding machine according to claim 1, it is characterised in that the oil
The left end of cylinder right end cap (13) is inserted to be set on the outer wall of the left end in the right cylinder cavity (24) and in the oil cylinder right end cap (13)
A pair of right end cap sealing rings (133) are equipped with, this pair of right end cap sealing ring (133) and the inner wall sealing of right cylinder cavity (24) coordinate.
5. the rapid mould opening-closing cylinder structure of plastic product molding machine according to claim 1, it is characterised in that described
Being constituted on the left end end face of big piston rod (2) has connecting screw rod head (26), and the right-hand member of the mould bases connector (4) is with being connected spiral shell
Head (26) is threadedly coupled, and the left end of mould bases connector (4) composition has a connector pin shaft hole (41) and in the connector
It is provided with a bushing (411) in pin shaft hole (41), mould bases connector (4) passes through the connection that is placed in connector pin shaft hole (41)
Head bearing pin (412) on the right side of the right mould frame (74) with being articulated and connected.
6. the rapid mould opening-closing cylinder structure of plastic product molding machine according to claim 1, it is characterised in that described
The right-hand member of big piston rod (2) and solid by piston end cap screw (271) in the position on the right side corresponding to the piston (22)
Surely there is a piston end cap (27), a pair of pistons end cap seal circle (272), this pair are provided with the inwall of the piston end cap (27)
The right-hand member outer wall sealing of piston end cap sealing ring (272) and the small piston rod (3) coordinates, and on piston end cap (27) also
Screwing one is used to limit the piston of the right side of the piston (22) restriction on nut (273), the piston limit nut (273) with
The right flank patch of piston (22) is touched.
7. the rapid mould opening-closing cylinder structure of plastic product molding machine according to claim 1, it is characterised in that described
The right-hand member of big piston rod (2) and being constituted in the position in the left side corresponding to the piston (22) has a piston to limit step
(28), the left surface of piston (22) limits step (28) patch with the piston and touched, on big piston rod (2) and corresponding to piston
(22) position of inwall is provided with a pair of pistons inner seal ring (29), and this pair of piston inner seal ring (29) is interior with piston (22)
Wall sealing coordinates, and a piston ring (221) and a pair of pistons exterior seal ring (222) are provided with the outer wall of piston (22), piston
Ring (221) is located between a pair of pistons exterior seal ring (222), and a pair of pistons exterior seal ring (222) and the oil cylinder set (11)
Right-hand member inner wall sealing coordinate.
8. the rapid mould opening-closing cylinder structure of plastic product molding machine according to claim 1, it is characterised in that described
The middle position of oil cylinder right end cap (13) offers a small piston rod resigning hole (134), and the right-hand member of the small piston rod (3) is with being somebody's turn to do
Small piston rod resigning hole (134) is engaged, and is provided with a pair of small piston rods on the outer wall of the right-hand member in the small piston rod (3)
Sealing ring (33), this pair of small piston rod sealing ring (33) and the hole wall sealing of small piston rod resigning hole (134) coordinate, in valve piston
The position that bar (3) is stretched over the right side of the oil cylinder right end cap (13) is equipped with a small piston rod lock nut (34).
9. the rapid mould opening-closing cylinder structure of plastic product molding machine according to claim 1, it is characterised in that described
Controlling organization (5) includes oil pump (51), fuel tank (52), the first control valve (53), the second control valve (54), valve seat (55), first
Check valve (56) and the second check valve (57), oil pump (51) are engaged with fuel tank (52), and oil pump (51) passes through oil pump first
Oil circuit (511) is connected with the first control valve (53) and is connected by the oil circuit of oil pump second (512) with the second control valve (54), oil
Case (52) is arranged in the frame (7) together with oil pump (51), and the fuel tank (52) passes through the oil circuit of fuel tank first (521) and the first control
Valve (53) processed connection and be connected by the oil circuit of fuel tank second (522) with the second control valve (54), the first control valve (53) and
Second control valve (54) is arranged on valve seat (55), and the first control valve (53) passes through the first control valve pipeline (531) and institute
Oil cylinder right end cap oil connection (131) connection stated, and the second control valve (54) passes through the oil inlet and oil return pipeline of control valve first (541)
Be connected with the oil cylinder left end cap oil connection (121) and by the oil inlet and oil return pipeline of control valve second (542) with it is described small
Piston rod oil duct oil inlet and oil return interface (32) is connected, and valve seat (55) is consolidated in the position on the right side corresponding to the oil cylinder right end cap (13)
It is scheduled in the frame (7), the first check valve (56) is arranged on the first described control valve pipeline (531), the second check valve
(57) it is arranged in the described oil inlet and oil return pipeline of control valve second (542), described oil tank (6) passes through oil tank pipeline (61)
It is connected and is communicated by valve seat (55) with the oil cylinder right end cap quick oil feeding hole (132) with described valve seat (55), in storage
An oil tank check valve (611) is provided with fuel tank pipeline (61), in second check valve (57) and the control valve first
Provided with one first control oil circuit (571) between oil inlet and oil return pipeline (541), and in the oil tank check valve (611) and control valve
Provided with one second control oil circuit (6111) between first oil inlet and oil return pipeline (541).
10. the rapid mould opening-closing cylinder structure of plastic product molding machine according to claim 9, it is characterised in that described
Valve seat (55) on offer a valve seat oil inlet (551) and be equipped with a pair of valve seat oil pipes (552), the oil tank pipeline
(61) it is coupled with valve seat oil inlet (551), and valve seat oil inlet (551) is communicated with a pair of valve seat oil pipes (552), a pair of valve seat oil
Pipe is connected with described oil cylinder right end cap quick oil feeding hole (132) and communicated with oil cylinder right end cap quick oil feeding hole (132).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610428256.1A CN105909591B (en) | 2016-06-15 | 2016-06-15 | The rapid mould opening-closing cylinder structure of plastic product molding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201610428256.1A CN105909591B (en) | 2016-06-15 | 2016-06-15 | The rapid mould opening-closing cylinder structure of plastic product molding machine |
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| CN105909591B true CN105909591B (en) | 2017-09-01 |
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| CN107471570B (en) * | 2017-06-24 | 2023-09-29 | 广东乐善智能装备股份有限公司 | Hybrid power driving cylinder capable of amplifying multiple driving force |
| CN108730243B (en) * | 2018-08-06 | 2023-06-30 | 苏州同大机械有限公司 | Pressurized cylinder of mould closing device of blow molding machine |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1565594A (en) * | 1968-03-18 | 1969-05-02 | ||
| JPS6090728A (en) * | 1983-10-24 | 1985-05-21 | Yamashiro Seiki Seisakusho:Kk | Injection molding machine |
| CN2376374Y (en) * | 1999-05-26 | 2000-05-03 | 常熟市同大机械有限公司 | Drawing bar free mould open/close mechanism |
| CN2475543Y (en) * | 2001-05-18 | 2002-02-06 | 杭州捷立精密机械有限公司 | Injection moulding machine for zipper |
| CN2481510Y (en) * | 2001-06-26 | 2002-03-13 | 常熟市同大机械有限公司 | Structurally improved mould opening and clamping mechanism |
| CN101890772B (en) * | 2010-04-13 | 2012-10-10 | 苏州同大机械有限公司 | Die opening and closing mechanism |
| CN104653542A (en) * | 2015-03-11 | 2015-05-27 | 江苏大道机电科技有限公司 | Mold opening and closing oil cylinder structure for large hollow blow molding machine |
| CN104863924A (en) * | 2015-05-24 | 2015-08-26 | 南京理工大学 | Three-cavity power hydraulic cylinder |
| CN205173117U (en) * | 2015-11-25 | 2016-04-20 | 苏州同大机械有限公司 | Hydro -cylinder structure for cavity plastics blow molding machine bush device |
| CN205689515U (en) * | 2016-06-15 | 2016-11-16 | 苏州同大机械有限公司 | The rapid mould opening-closing cylinder structure of plastic product molding machine |
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