Rigid clamping mechanism
Technical field
The utility model is related to the high rigidity clamping mechanisms more particularly to one in injection molding apparatus, die-cast formation equipment
Kind double-plate high rigidity clamping mechanism.
Background technology
At present in plastic processing, die cast metal and rubber processing industry, it is related to injection molding apparatus, die-cast formation equipment
Used clamping mechanism mostly uses greatly double-plate referred to as two triggers.Double-plate clamping mechanism is simple and compact for structure, easy due to its
It is had been widely used in use.Double-plate clamping mechanism generally comprises moving platen, solid plate, is connected to moving platen and determines
The pull rod moved on it between template and for moving platen and the mode locking oil for driving moving platen to be moved relative to solid plate
Cylinder and band-type brake component etc..
Existing double-plate clamping mechanism, the tooth of pull rod band-type brake are to have certain thickness to ensure the intensity of tooth, tooth and tooth
The distance between cry tooth away from, tooth away from generally having tens millimeters.When mold thickness changes, typically by adjusting locking piston
Stop position compensate the variation of mold thickness size to realize band-type brake, and realize and accurately control stopping for locking piston per mould
Stop bit set to control technology require it is very high, realize that the cost of this control technology is also very high.Locking piston and Mode-locking oil cylinder protecgulum it
Between size of the mode locking high pressure oil on locking piston central axis direction be defined as fluid thickness, because fluid thickness under high pressure can
Level specific pressure contracting amount is generated, the level specific pressure contracting amount of this fluid thickness is about more than 100 times than amount of tension such as steel alloy.Adjust mode locking
Its fluid thickness also changes correspondingly after the stop position of piston, and different molds can adjust out different fluid thickness, this oil
Liquid thickness sometimes close to tooth away from size, at this time clamping mechanism it is insufficient to show as mode locking rigidity, it is thin to be especially molded high speed
Easily occurring template when wall or high pressure product allows mould, molding product overlap easily occur;More large-tonnage can only be selected to lock at this time
The type of mould power produces, production cost higher.The pull rod of existing double-plate clamping mechanism is designed as greatly copper sheathing with moving platen
Be oriented to contact, this will produce the pollution of copper bush lubrication oil, and shifting formwork resistance with the difference of lubrication and difference can lead to shifting formwork shakiness
Fixed, complete machine stability reduces.
Utility model content
In order to overcome the deficiencies of the prior art, the utility model provides a kind of high rigidity clamping mechanism, main purpose
It is to solve the problems, such as mode locking rigidity deficiency, the problem of control technology complexity of existing double-plate clamping mechanism.
The purpose of this utility model is realized using following technical scheme:
A kind of high rigidity clamping mechanism, including solid plate, moving platen and both ends are connected to the solid plate and move
Four pull rods of template;After the fixing end of four pull rods is pierced by four through-holes set by the solid plate quadrangle respectively, point
It is not screwed on mutually with four pull-rod nuts, to be connected on the solid plate;The movable end of four pull rods is pierced by institute respectively
After stating four through-holes that moving platen quadrangle is correspondingly arranged, it is respectively fixedly connected with four band-type brake machines set by moving platen outside
On structure, to which the moving platen is reciprocally connected to the cover half along four pull rods relative to the solid plate
Plate;Four pull-rod nuts are connected to same driving mechanism by same transmission mechanism, driven by the driving mechanism and
Realization synchronizes automatic rotation, to which four pull rods of driving are adjusted in synchronism the position on each leisure solid plate.
Further, the transmission mechanism is gear drive, chain drive or belt gear.
Further, the driving mechanism is hydraulic motor assemblies or electric motor assembly.
Further, the inside bottom of the solid plate is equipped with two nested structures are identical, are respectively used to adjust two institutes in lower section
The jack-up component stated the inclination angle of pull rod, keep the pull rod of lower section two perpendicular with the die mounting surface of the solid plate;
Immediately below the pull rod corresponding to it, bottom level is adjustably set on solid plate the component that jacks up,
Top is equipped with for support pull rod from below and allows pull rod guide support slot in axial sliding, and the guide support slot is by edge
The groove for jacking up the setting of component top surface and two outer inclined-planes for being symmetrically set in the groove both sides are constituted.
Further, nut gland is equipped on the outside of four pull-rod nuts, the nut gland passes through its lid
Upper set through-hole is socketed on the pull rod corresponding to it, and the outer end face of solid plate is fixedly installed in by connecting rod.
Further, it is mutually interconnected by an anti-rotation connecting plate between the fixing end of two pull rods up and down of homonymy
It connects, the top and bottom ends of the anti-rotation connecting plate pass through the connecting pin fixing end with two pull rods up and down of the side respectively
It is fixedly connected, so that this two pull rods realize mutual self-locking, prevents two pull rods from occurring in the process of running certainly
Turn.
Further, the top of the anti-rotation connecting plate is equipped with screw hole, is equipped in the screw hole for adjusting top
The pull rod relative to the solid plate inclination angle, so that the pull rod and the solid plate of top die mounting surface phase
Vertical Top fastening screw, the Top fastening screw connect the institute of the anti-rotation connecting plate and the pull rod of top by its bottom end support top
State connecting pin, changed by changing the level angle of the connecting pin top the pull rod and the solid plate between incline
Angle.
Further, the contracting brake mechanism includes Mode-locking oil cylinder protecgulum, Mode-locking oil cylinder body, locking piston component, band-type brake group
Part and blue with valve disengaging oil process;
The Mode-locking oil cylinder protecgulum is fixedly installed in the outer end face of moving platen, and the Mode-locking oil cylinder body is fixedly installed in described
The outer end face of Mode-locking oil cylinder protecgulum, the locking piston component are movably arranged in the Mode-locking oil cylinder body, inner end and the lock
High-voltage lock mould chamber is formed between moulding oil cylinder front cover and clamp force can be provided, and the band-type brake component is fixedly mounted on the locking piston
The outer end face of component;The movable end of the pull rod passes through correspondence on the moving platen, moulding oil cylinder front cover and locking piston component to set
It is rotatably connected in after the through-hole set on band-type brake component in set threaded hole, to can be along four pull rods and phase by the moving platen
The solid plate is connected to for the solid plate reciprocating movement;
The band valve disengaging oil process orchid is set on the Mode-locking oil cylinder protecgulum, with by passing in and out oil process orchid with valve to described
It controls and realizes high-voltage lock mould chamber and the disconnection of exterior line or be connected to.
Further, all band-type brake components are equipped with band-type brake oil cylinder, and all band-type brake oil cylinders are installed inwardly, with
Solve the problems, such as that small machine installation space is insufficient.
Further, the band valve disengaging oil process orchid is equipped with the oily component of control, to realize in each Mode-locking oil cylinder body
Close minimum high-voltage lock mould hydraulic oil.
Compared with prior art, the beneficial effects of the utility model are:
1) relative position between all pull rods and solid plate of the utility model can be passed through same by same driving mechanism
Transmission mechanism carries out automatic synchronization machinery adjusting by pull-rod nut, and to compensate the variation of mold thickness, i.e., no matter mold is thick
How degree changes, and locking piston and band-type brake component are all not necessarily to change and all in zero-bit in the position of Mode-locking oil cylinder body before band-type brake;Cause
For, come the axial position of adjusting yoke, mixing up the mechanical location of back stay would not move, and stablize by the way of polarity adjusting
Property is fine, and control is adjusted again without every mould, advantageously reduces control cost;Locking piston is all to retract zero before opening a sluice gate every time
Position is directly pressed onto protecgulum, and the displacement of high-voltage lock mould chamber is zero, realizes the technically simple of locking piston single-point fixed position control,
Cost is lower, and stability is high.
2) the high-voltage lock mould chamber of the utility model plays clamp force its displacement and all starts from scratch every time, plays the displacement after high pressure
Namely fluid thickness only has several millimeters, about 1/10th of tradition double-plate clamping mechanism fluid thickness, each mode locking
It is blue that oil cylinder front cover is designed with band valve disengaging oil process, rise can control after high pressure band valve disengaging oil process orchid make each high-voltage lock mould chamber with
The pipeline of outside is fully disconnected, so the The hydraulic oil for being closed in high-voltage lock mould intracavitary is designed into minimum state, oil
Influence of the liquid thickness to clamping mechanism integral rigidity can be ignored.
Description of the drawings
Fig. 1 is a certain angle schematic diagram of overall structure of the utility model embodiment
Fig. 2 is the solid plate portion connecting structure schematic diagram of the utility model embodiment
Fig. 3 is the contracting brake mechanism structural schematic diagram of utility model embodiment
Fig. 4 is the jack-up component structure diagram of utility model embodiment
Specific implementation mode
Utility model will be further explained below with reference to the attached drawings and specific embodiments.
Referring to Fig.1-4:
A kind of high rigidity clamping mechanism, including solid plate 1, moving platen 2 and four pull rods 3.
After the fixing end of four pull rods 3 is pierced by four through-holes set by 1 four jiaos of solid plate respectively, respectively with four pull rod spiral shells
Female 4 phases are screwed on, to be connected on solid plate 1.
The outside of four pull-rod nuts 4 is equipped with nut gland 9, and the nut gland 9 passes through set on its lid
Through-hole be socketed on the pull rod 3 corresponding to it, and the outer end face of solid plate 1 is fixedly installed in by connecting rod 10.
The outside of solid plate 1 is equipped with transmission mechanism 6, which includes fixing axle 601 and toothed disc 602, is fixed
Axis 601 is fixedly installed in the outer end face center of solid plate 1, and toothed disc 602 is rotatably socketed on solid by its centre bore
On dead axle 601, four pull-rod nuts 4 are wanted to engage by the screw thread set by respective outer rim with toothed disc 602.
The board of 1 lower section of solid plate is equipped with driving mechanism 7, which includes motor 701, motor 701
Body is installed on by holder 702 on board, and output shaft is equipped with the driving wheel 703 being meshed with toothed disc 602.
The movable end of four pull rods 3 is connected to respectively in four through-holes that 2 four jiaos of moving platen is correspondingly arranged, moving platen 2
Outside is set there are four contracting brake mechanism 5, and four contracting brake mechanisms 5 are fixedly connected on the movable end of four pull rods 3, to drive moving platen 2
Along four pull rods 3 relative to 1 traverse motion of solid plate, to realize open mold.
Contracting brake mechanism 5 includes Mode-locking oil cylinder protecgulum 501, Mode-locking oil cylinder body 502, locking piston component 503, band-type brake component
504 and with valve disengaging oil process orchid 505.
Mode-locking oil cylinder protecgulum 501 is fixedly installed in the outer end face of moving platen 2, and Mode-locking oil cylinder body 502 is fixedly installed in mode locking
The outer end face of oil cylinder front cover 501, locking piston component 503 are movably arranged in Mode-locking oil cylinder body 502, before inner end and Mode-locking oil cylinder
High-voltage lock mould chamber is formed between lid 501 and clamp force can be provided, and band-type brake component 504 is fixedly mounted on locking piston component 503
Outer end face;The movable end of pull rod 3 passes through what is be correspondingly arranged on moving platen 2, moulding oil cylinder front cover 501 and locking piston component 503 to lead to
It is rotatably connected in behind hole in threaded hole set on band-type brake component 504, thus can be along four pull rods 3 and relative to cover half by moving platen 2
It is connected to solid plate 1 to 1 reciprocating movement of plate.
Band valve disengaging oil process orchid 505 is set on Mode-locking oil cylinder protecgulum 501, to pass through the control to passing in and out oil process orchid 505 with valve
It makes and realizes high-voltage lock mould chamber and the disconnection of exterior line or be connected to.
Band valve disengaging oil process orchid 505 is equipped with the oily component 5051 of control, to realize that each 502 inner sealing of Mode-locking oil cylinder body is minimum
High-voltage lock mould hydraulic oil.
All band-type brake components 504 are equipped with band-type brake oil cylinder 5041, and all band-type brake oil cylinders 5041 are all installed inwardly to solve
The problem of small machine installation space deficiency.
Driving mechanism 7 drives all pull-rod nuts 4 to rotate synchronously by transmission mechanism 6, and then all pull rods 3 is driven to synchronize
Relative to 1 transverse movement of solid plate, the relative position between each pull rod 3 and solid plate 1 is adjusted with automatic synchronization, to realize to mould
Has the compensation of thickness change, i.e., no matter how mold thickness changes, and locking piston component 503 and band-type brake component 504 are in mode locking oil
The position of cylinder body 502 is all not necessarily to change and all in zero-bit;Because come the axial position of adjusting yoke 3 by the way of polarity adjusting
It sets, the mechanical location of the pull rod 3 after mixing up would not move, and stability is fine, regulated and controled again without every mould, advantageously reduced
Control cost;Locking piston component 503 is all to retract zero-bit to be directly pressed onto Mode-locking oil cylinder protecgulum 501, high pressure before opening a sluice gate every time
The displacement of Mode-Locking Cavity is zero, realizes the technically simple of 503 single-point fixed position control of locking piston component, cost is lower, stablizes
Property it is high.
For the ease of adjusting and being located in perpendicular with the inside die mounting surface of solid plate 1 the two of lower section piece pull rod 3
Angle, the bottom of solid plate 1 be equipped with two nested structures are identical, be respectively used to adjust below two 3 inclination angles of pull rod jack-up group
Part 8.Two sets of jack-up components 8 are respectively arranged on immediately below the pull rod 3 corresponding to it, and it includes an adjustment pin 801 that often set, which jacks up component 8,
It is adjustably rotatably connected in set by 1 inside bottom of solid plate by its external screw thread height with the bottom of a jacking block 802, adjustment pin 801
In screw hole, jacking block 802 is set to the top of adjustment pin 801, and top surface is equipped with the pull rod 3 for support from below corresponding to it simultaneously
Allow the pull rod 3 guide support slot in axial sliding, guide support slot is by the groove 8-1 that is arranged along 802 top surface center line of jacking block and right
Two outer inclined-plane 8-2 set on the both sides groove 8-1 are claimed to constitute.
Rotation occurs in the process of running for four pull rods in order to prevent, between the fixing end of two pull rods 3 up and down of homonymy
Be connected with each other by an anti-rotation connecting plate 11, the top and bottom ends of anti-rotation connecting plate 11 by a connecting pin 12 respectively with the side
The fixing ends of two pull rods 3 up and down be fixedly connected so that two pull rods 3 realize mutual self-locking, prevent two pull rods 3 from existing
Rotation occurs in operational process.
For the ease of adjusting and being located in perpendicular with the inside die mounting surface of solid plate 1 the two of top piece pull rod 3
Angle, be equipped with screw hole at the top of two pieces of anti-rotation connecting plates 11, be equipped in screw hole for adjust top pull rod 3
Relative to the inclination angle of solid plate 1, so that the pull rod 3 of top and the perpendicular Top fastening screw 13 of the die mounting surface of solid plate 1, should
Top fastening screw 13 connects the connecting pin 12 of anti-rotation connecting plate 11 and the pull rod 3 of top by its bottom end support top, by changing the company
The level angle of outbound 12 and change top pull rod 3 and solid plate 1 between inclination angle.
The above is only the preferred embodiment of the utility model only, not makees in any form to the utility model
Limitation, the those of ordinary skill of all industry can be shown in by specification attached drawing and described above and swimmingly implement this practicality newly
Type.But all those skilled in the art are not departing within the scope of technical solutions of the utility model, utilization is disclosed above
Technology contents and the equivalent variations of a little variation, modification and evolution made, be the equivalent embodiment of the utility model;Together
When, variation, modification and evolution of all substantial technologicals according to the utility model to any equivalent variations made by above example
Deng still falling within the protection domain of the technical solution of the utility model.