Injection moulding machine mode-locking mechanism
Technical field
The utility model relates to injection machine and hydraulic test field, particularly a kind of injection moulding machine mode-locking mechanism.
Background technology
Chinese patent CN200520129196.0 discloses a kind of high-speed, high precision hydraulic locking system on March 21st, 2007, it comprises that rear pattern plate, moving plate, solid plate, pull bar, mode transfer oil cylinder, tail-hood, high-voltage lock mould oil cylinder left side lid, high-voltage lock mould piston rod, the right lid of high-voltage lock mould oil cylinder, high speed Mode-locking oil cylinder stifle, high speed Mode-locking oil cylinder piston rod, high speed Mode-locking oil cylinder pass through lid; The rear pattern plate centre bore is equipped with high-voltage lock mould oil cylinder left side lid, high-voltage lock mould piston rod, the right lid of high-voltage lock mould oil cylinder back formation high-voltage lock mould oil cylinder; High speed Mode-locking oil cylinder stifle, high speed Mode-locking oil cylinder piston rod, high speed Mode-locking oil cylinder are housed in the rear pattern plate two side holes form the high speed Mode-locking oil cylinder in the lid back thoroughly.This complex structure, the locked mode dynamics is unbalanced, machining accuracy is low, haves much room for improvement.
The utility model content
The purpose of the utility model is to overcome the deficiency that above-mentioned prior art exists, and provides a kind of simple and reasonable for structure, the injection moulding machine mode-locking mechanism that shifting formwork speed is fast, locked mode is quick, dynamics is balanced, machining accuracy is high, cost is low.
The purpose of the utility model is to realize like this.
A kind of injection moulding machine mode-locking mechanism comprises the Mode-locking oil cylinder that is arranged on the moving platen, and moving platen is slidingly arranged on the brother woods post, and brother Lin Zhu rear and front end is fixedly connected with solid plate and back plate respectively; It is characterized in that said Mode-locking oil cylinder comprises cylinder body, piston, drive end bearing bracket and rear end cap; Said cylinder body is set in outside the brother woods post, and its front end is fixedly connected with moving platen through drive end bearing bracket, and the rear end is fixedly connected with rear end cap; Said piston bush is located at outside the brother woods post and is positioned at cylinder body; Said drive end bearing bracket and rear end cap also are respectively arranged with the oily passage of preceding mistake that is communicated with cylinder interior and cross oily passage with the back, and the oily passage of forward and backward mistake also is communicated with through the outside conducting oil pipe of cylinder body; Cross the shunting valve body of oily passage before slip is provided with and is used to seal and open before and after crossing in the oily passage before said; The shunting valve body is set on the brother woods post and with brother woods intercolumniation crack and cooperates; The corresponding shunting of drive end bearing bracket valve body rear side is provided with shifting formwork oil passage, and the corresponding shunting of moving platen valve body front side is provided with the pressurised oil passage.
The purpose of the utility model can also adopt following technical measures to solve.
As scheme more specifically, corresponding shunting valve body is provided with sliding chamber in the said drive end bearing bracket, crosses hydraulic fluid port in sliding chamber front end is provided with, and arranged outside has the outer hydraulic fluid port of crossing, and the interior hydraulic fluid port, sliding chamber and outer crossed crossed hydraulic fluid port and be interconnected to constitute and cross oily passage before said.
Said shunting valve body front end is provided with the baffle bulge loop, and the corresponding baffle bulge loop of sliding cavity wall front end annular is provided with limited step, and the limited step side is provided with said shifting formwork oil passage.
Said baffle bulge loop periphery also is provided with annular groove, is provided with sealing ring in the annular groove.
Cross the hydraulic fluid port inwall in said and be taper, the shunting valve rear end be and the interior taper of crossing the hydraulic fluid port coupling when shunting valve body moves backward, can better the interior hydraulic fluid port of crossing be sealed.
Said shunting valve body the place ahead also is provided with packing ring, and packing ring is provided with via, and via one end points to shunting valve body leading section, the other end and pressurised oil channel connection.
Fairlead and back fairlead before also being respectively arranged with between said drive end bearing bracket and rear end cap and the brother woods post.Said brother woods post is provided with more than two, is provided with said Mode-locking oil cylinder on each Gen Gelin post.
Said brother woods post be provided with four and be distributed in the back plate four angles on, be provided with said Mode-locking oil cylinder on each Gen Gelin post.
Said solid plate rear end is provided with bumper bar.
Be provided with more than one mould shifting oil cylinder between said back plate and the moving platen, the cylinder body of mould shifting oil cylinder is connected with the back plate, and piston rod is connected with moving platen.
The utility model is through being provided with the shunting valve body, shunting valve body and mould shifting oil cylinder and pressurizing cylinder interlock in drive end bearing bracket; When shifting formwork, the shunting valve body will connect the passage of the piston both sides of Mode-locking oil cylinder to be opened, and reduces the resistance that moving platen moves; When locked mode, the shunting valve body will connect the passage sealing of the piston both sides of Mode-locking oil cylinder, and the hydraulic oil of pressurizing cylinder is filled the Mode-locking oil cylinder inner chamber rapidly, reaches the purpose of quick locked mode.It is simple and reasonable for structure, and shifting formwork speed is fast, locked mode is quick, dynamics is balanced, machining accuracy is high, cost is low.
Description of drawings
Fig. 1 is the utility model one example structure sketch map.
Fig. 2 is an A place structure for amplifying sketch map among Fig. 1.
Fig. 3 is a flow divider body structure sketch map.
Fig. 4 is the drive end bearing bracket structural representation.
Fig. 5 is the gasket construction sketch map.
Fig. 6 is leading to the nested structure sketch map.
Fig. 7 is the utility model shifting formwork status architecture sketch map.
Fig. 8 is a B place structure for amplifying sketch map among Fig. 7.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is further described.
Embodiment one, and to shown in Figure 8, this injection moulding machine mode-locking mechanism comprises the Mode-locking oil cylinder that is arranged on the moving platen 6 like Fig. 1, and moving platen 6 is slidingly arranged on the brother woods post 11, and brother woods post 11 rear and front ends are fixedly connected with solid plate 5 and back plate 9 respectively; Said Mode-locking oil cylinder comprises cylinder body 12, piston 10, drive end bearing bracket 14 and rear end cap 15; Said cylinder body 12 is set in outside the brother woods post 11, and its front end is fixedly connected with moving platen 6 through drive end bearing bracket 14, and the rear end is fixedly connected with rear end cap 15; Said piston 10 is set in outside the brother woods post 11 and is positioned at cylinder body 12; Said drive end bearing bracket 14 also is respectively arranged with the oily passages of preceding mistake that are communicated with cylinder body 12 inside with rear end cap 15 and crosses oily passage with the back, and the oily passage of forward and backward mistake also is communicated with through the conducting oil pipes 13 of cylinder body 12 outsides; Cross the shunting valve body 1 of oily passage before slip is provided with and is used to seal and open before and after crossing in the oily passage before said; Shunting valve body 1 be set on the brother woods post 11 and with brother woods post 11 matched in clearance; Drive end bearing bracket 14 corresponding shunting valve body 1 rear sides are provided with shifting formwork oil passage 14.2, and moving platen 6 corresponding shunting valve bodies 1 front side is provided with pressurised oil passage 6.1.
Corresponding shunting valve body 1 is provided with sliding chamber 14.4 in the said drive end bearing bracket 14; In being provided with, sliding chamber 14.4 front ends cross hydraulic fluid port 14.3; Arranged outside has the outer hydraulic fluid port 14.1 of crossing, and the interior hydraulic fluid port 14.3, sliding chamber 14.4 and outer crossed crossed hydraulic fluid port 14.1 and be interconnected to constitute and cross oily passage before said.
Said shunting valve body 1 front end is provided with baffle bulge loop 1.1, and the corresponding baffle bulge loop of sliding chamber 14.4 inwall front ends 1.1 annulars are provided with limited step 14.5, and limited step 14.5 sides are provided with said shifting formwork oil passage 14.2.
Said baffle bulge loop 1.1 peripheries also are provided with annular groove 1.2, are provided with sealing ring in the annular groove 1.2.
Cross hydraulic fluid port 14.3 inwalls in said and be taper, shunting valve body 1 rear end is and the interior taper of crossing hydraulic fluid port 14.3 couplings.
Said shunting valve body 1 the place ahead also is provided with packing ring 2, and packing ring 2 is provided with via 2.1, and via 2.1 1 ends point to shunting valve body 1 leading section, and the other end is communicated with pressurised oil passage 6.1.
Fairlead 3 and back fairlead 16 before also being respectively arranged with between said drive end bearing bracket 14 and rear end cap 15 and the brother woods post 11.
Said brother woods post 11 be provided with four and be distributed in the back plate 9 four angles on, be provided with said Mode-locking oil cylinder on each Gen Gelin post 11.
Said solid plate 5 rear ends are provided with bumper bar 4.
Be provided with two mould shifting oil cylinders 8 up and down between said back plate 9 and the moving platen 6, the cylinder body of mould shifting oil cylinder 8 is connected with back plate 9, and piston rod is connected with moving platen 6.Moving platen 6 rear ends also are provided with and eject oil cylinder 7.
Above-mentioned injection moulding machine mode-locking mechanism also includes pressurizing cylinder, and the oily passage of pressurizing cylinder is communicated with pressurised oil passage 6.1; The oily channel connection of shifting formwork oil passage 14.2 and mould shifting oil cylinder.
Its operation principle is: referring to Fig. 1 and Fig. 2, be the mode-lock status structure chart, pressurizing cylinder starts; Mould shifting oil cylinder is closed; The hydraulic oil of pressurizing cylinder rushes at the front end of shunting valve body 1 successively through the via 2.1 of pressurised oil passage of moving platen 6 6.1 and packing ring 2, the shunting valve body is moved backward and drive end bearing bracket 14 interior crossed hydraulic fluid port 14.3 sealings, and hydraulic oil can only get in the Mode-locking oil cylinders in gap 17 between brother woods post 11 and shunting valve body 1; Cylinder body 12 front interior cavity superchargings are filled, realize high-voltage lock mould.Referring to Fig. 7 and Fig. 8, be the shifting formwork structure graph, the pressurizing cylinder pressure release is closed; Mould shifting oil cylinder 8 starts; The shifting formwork hydraulic oil that communicates with mould shifting oil cylinder rushes at baffle bulge loop 1.1 rear ends of shunting valve body 1 through solenoid control through shifting formwork oil passage 14.2, and shunting valve body 1 moves forward, and the interior hydraulic fluid port 14.3 of crossing is opened (crossing oily passage promptly opens); Inner piston 10 both sides of Mode-locking oil cylinder are switched on oil pipe 13 and are communicated with; Piston 10 both sides chamber pressure balances realize that differential fluid is complementary, make mould shifting oil cylinder 8 controllable brake templates 6 fast moving.
Embodiment two; Be with the difference of embodiment one: back plate (gripper shoe) is arranged at the place ahead of solid plate; Moving platen is arranged on the solid plate rear; Be connected through the Mode-locking oil cylinder cylinder body between back plate and the solid plate, the piston rod of Mode-locking oil cylinder (brother woods post) passes solid plate and is connected with moving platen, and is not shown.But other structure reference implementation example one of this kind of Mode-locking oil cylinder, it is compared with traditional all-hydraulic injection machine of four cylinders, on overall structure, has done significant improvement; Mode-locking oil cylinder is preposition; Four cylinders are fixed on the solid plate, and the moving component on the moving platen reduces, and energy consumes low; Motional inertia is little, thereby effectively reduces certain energy consumption, raising control accuracy.In addition, the minimizing of machine shape size, complete machine floor space reduce, and can reduce the workshop construction cost.