CN101623919B - Mould clamping mechanism of crank connecting rod - Google Patents
Mould clamping mechanism of crank connecting rod Download PDFInfo
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- CN101623919B CN101623919B CN2009101014814A CN200910101481A CN101623919B CN 101623919 B CN101623919 B CN 101623919B CN 2009101014814 A CN2009101014814 A CN 2009101014814A CN 200910101481 A CN200910101481 A CN 200910101481A CN 101623919 B CN101623919 B CN 101623919B
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Abstract
The invention relates to a mould clamping mechanism of a crank connecting rod, comprising a tail plate, a movable template and a pair of crank connecting rod structures, wherein each crank connecting rod structure also comprises a front connecting rod, a back connecting rod, a small connecting rod and a push seat. The front end of the front connecting rod is hinged with the back end face of the movable template, the back end of the front connecting rod is hinged with the front end of the back connecting rod, the back end of the back connecting rod is hinged with the front end face of the tail plate, one end of the small connecting rod is hinged with the middle part of the back connecting rod, the other end is hinged with one side of the push seat, and the push seat is spaced between the tail plate and the movable template and can move back and forth. The mould clamping mechanism of the crank connecting rod is characterized in that the front connecting rod is an integral component, the front end of the front connecting rod is provided with two front projecting lugs which are hinged with the back end face of the movable template, and the back end of the front connecting rod is provided with three back projecting lugs which are hinged with the back connecting rod. The mould clamping mechanism of the crank connecting rod has the advantages that the movable template and the tail plate have simple structure and long service life.
Description
Technical field
The present invention relates to the clamping in the injection machine, relate in particular to a kind of mould clamping mechanism of crank connecting rod.
Background technology
It finishes the whole mold process of unblanking with a Mode-locking oil cylinder traditional injection moulding machine clamping; in order to obtain bigger clamp force; therefore it need use the Mode-locking oil cylinder of big flow, so the Heavy Weight of Mode-locking oil cylinder, and difficulty is overhauled in assembling; also because its cylinder diameter of Mode-locking oil cylinder of big flow is big; the long-term Mode-locking oil cylinder that uses weares and teares easily, causes in the oil cylinder and lets out, and durability is bad; moreover its speed of Mode-locking oil cylinder that will drive big flow is also slow, is difficult to realize quick die sinking locked mode.
At aforementioned present situation, in recent years, manufacturing and designing in China of five hinge bars of hyperbolic elbow clamping injection machine begins to develop gradually, and the core of five hinge bars of hyperbolic elbow clamping is exactly the shaft portion of relay cylinder motion.
When doing linear uniform motion with the Driven by Hydraulic Cylinder piston rod, moving platen by the crank connecting rod mechanism driving can produce slowly-and fast-slow speed characteristics are fit to the technological requirement that template plays mold closing, if employing driven by servomotor, the variable motion rule that can change piston rod makes it to obtain at a high speed, moving platen kinetic characteristic stably, and energy-conservation.When crank connecting rod mechanism stretches, can enter self-locking state, behind the locking mould, by the elastic reaction that produced of distortion can't make mould open therefore can the temporarily disconnected input power, and reach and save the energy and reduce cost.
Owing at present between the big bearing pin in five hinge bars of hyperbolic elbow clamping injection machine tailgate and the tailgate relative rotation is arranged, thereby easily causes the wearing and tearing of tailgate, reduced the life-span of tailgate; And the front rod in the bar linkage structure is a plurality of self-existent rod members, so its intensity, rigidity are lower.
As a patent No. is a kind of similar Curved Elbow Die Mechanism the Chinese invention patent " Curved Elbow Die Mechanism " of ZL02138666.8 (publication number is CN1502461A) has disclosed.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of crank connecting rod structural strength high mould clamping mechanism of crank connecting rod at above-mentioned prior art present situation, and this mechanism has the advantage of simple in structure, the long service life of moving platen and tailgate.
The present invention solves the problems of the technologies described above the technical scheme that is adopted: a kind of mould clamping mechanism of crank connecting rod; include tailgate; moving platen and be arranged on tailgate and moving platen between to drive a pair of crank connecting rod structure that moving platen moves relative to tailgate; each crank connecting rod structure comprises front rod again; back link; small rod and push away seat; wherein; the front end of front rod and the rear end face of moving platen are hinged; the rear end of front rod and the front end of back link are hinged; the rear end of back link and the front end face of tailgate are hinged; the middle part of described small rod one end and back link is hinged; the other end with push away the seat one side hinged; be limited between tailgate and the moving platen by guide rod and can move around and push away seat; it is characterized in that: described front rod is a single piece; the front end of front rod has two the preceding lugs hinged with the moving platen rear end face, the rear end of front rod have with hinged three of back link after lug.
The rear end face of above-mentioned moving platen has first intermediate support, be fixed with first bearing pin on this first intermediate support, this first bearing pin can not rotate relative to first intermediate support, and two preceding lugs of described front rod are movably set on the first bearing pin and can rotate relative to first bearing pin; Wear on the lug after three of described front rod and be fixed with second largest bearing pin, this second largest bearing pin can not rotate relative to front rod, the front end of described back link is movably set on the second largest bearing pin and can rotates relative to second largest bearing pin, and back link is made up of first back link independent of each other and second back link, this first back link and second back link be behind adjacent two between the lug, and be close to back lug end face; The front end face of described tailgate has second intermediate support, be fixed with the third-largest bearing pin on this second intermediate support, this the third-largest bearing pin can not rotate relative to this second intermediate support, and the rear end of described back link is movably set on this third-largest bearing pin and can rotates relative to the third-largest bearing pin; Described small rod is by first small rod independent of each other, second small rod and the 3rd small rod are formed, one end of one first its two ends of small clevis pin with head and first small rod and the 3rd small rod is fixed, this first small clevis pin with head can not rotate relative to first small rod and the 3rd small rod, described second small rod is set in the middle part of this first small clevis pin with head, the middle part of described first back link is movably set on second small clevis pin with head and can rotates relative to second small clevis pin with head, and first back link between first small rod and second small rod and end face be close to each other, the middle part of described second back link is movably set on second small clevis pin with head and can rotates relative to second small clevis pin with head, and second back link between second small rod and the 3rd small rod and end face be close to each other; The other end of one second its two ends of small clevis pin with head and first small rod and the 3rd small rod is fixed, this second small clevis pin with head can not rotate relative to first small rod and the 3rd small rod, the other end of described second small rod is set in the middle part of this second small clevis pin with head, and two lugs that push away a side of seat are movably set on second small clevis pin with head and also can rotate relative to second small clevis pin with head.
Have a groove on two outer faces of described first bearing pin, correspondingly also have groove on first intermediate support, two outermost face, one first clamp is stuck in the groove of first intermediate support of first bearing pin simultaneously; Have a groove on two outer faces of described second largest bearing pin, correspondingly also have groove on lug two outermost face of back, one second clamp is stuck in the groove of second largest bearing pin and back lug simultaneously; Have a groove on two outer faces of described the third-largest bearing pin, correspondingly also have groove on second intermediate support, two outermost face, one the 3rd clamp is stuck in the groove of the third-largest bearing pin and second intermediate support simultaneously; Have a groove on two outer faces of described first small clevis pin with head, also have groove on the outer face of corresponding first small rod and the 3rd small rod one end, one the 4th clamp is stuck in the groove of first small clevis pin with head, first small rod and the 3rd small rod simultaneously; Have a groove on two outer faces of described second small clevis pin with head, correspondingly also have groove on the outer face of first small rod and the 3rd small rod other end, one the 5th clamp is stuck in the groove of second small clevis pin with head, first small rod and the 3rd small rod simultaneously.
Compared with prior art, the invention has the advantages that:
1., front rod makes a single piece, eliminated the accumulated error of processing each respectively, both improved the machining accuracy of front rod, improved the rigidity of front rod again, simplified assembling process, reduced manufacturing cost.
2., nothing relatively rotates fixing between each big bearing pin and moving platen, the tailgate; Do not have between each small clevis pin with head and the small rod and relatively rotate fixingly, eliminated moving platen, tailgate and the wearing and tearing of bearing pin greatly, in the life-span of having improved moving platen and tailgate, saved cost; Simultaneously between back link and the front rod for fitting tightly, also fit tightly between small rod and the back link, adding only needs front rod and back link are carried out fine finishining man-hour, and front rod and back link are rod member, adding man-hour is end face processing, so it is easy to process, simultaneously, also make each support, the medial surface that pushes away seat does not all need processing, each connecting rod and each support, even push away the stability that exists big gap also not influence this toggle structure action between the seat, and as to each support, pushing away composition surface between seat and each connecting rod, to carry out fine finishining then very difficult, and in sum, this toggle mechanism greatly reduces difficulty of processing and manufacturing cost, improved production efficiency.
Description of drawings
Fig. 1 is an embodiment of the invention perspective view;
Fig. 2 is the side view of embodiment of the invention die opening state;
Fig. 3 is the cutaway view (positive apparent direction) of embodiment of the invention die opening state;
Fig. 4 is an embodiment of the invention mode-lock status side view;
Fig. 5 is small rod in the embodiment of the invention and the connection diagram that pushes away seat and back link.
The specific embodiment
Embodiment describes in further detail the present invention below in conjunction with accompanying drawing.
As Fig. 1～5 be depicted as of the present invention should preferred embodiment.
A kind of mould clamping mechanism of crank connecting rod; include tailgate 1, moving platen 2 and be arranged on tailgate 1 and moving platen 2 between to drive a pair of crank connecting rod structure that moving platen 2 moves relative to tailgate 1; tailgate 1 is fixed on the frame of injection machine; be fixed with four pull bars 12 on the tailgate 1; the other end of these four pull bars 12 is fixed on the plate 13; moving platen 2 then is set on four pull bars 12 of frame; and can be along pull bar slippage about in the of 12, each crank connecting rod structure comprises front rod 3, back link 4, small rod 5 again and pushes away seat 6.
Wherein, front rod 3 is a single piece, and the front end of front rod 3 has two the preceding lugs 31 hinged with moving platen 2 rear end faces, and this preceding lug 31 is provided with at interval, the rear end of front rod 3 have with hinged three of back link 4 after lug 32, lug 32 is provided with at interval after these three.
The rear end face of the front end of front rod 3 and moving platen 2 is hinged, the rear end face that is moving platen 2 has first intermediate support 21, be fixed with first bearing pin 22 on this first intermediate support 21, have a groove on two outer faces of first bearing pin 22, correspondingly also have groove on 21 liang of outermost face of first intermediate support, one first clamp 7 is stuck in the groove of first intermediate support 21 of first bearing pin 22 simultaneously, first like this bearing pin 22 can not rotate relative to first intermediate support 21, and two preceding lugs 31 of front rod 3 are movably set on the first bearing pin 22 and can rotate relative to first bearing pin 22.
The front end of the rear end of front rod 3 and back link 4 is hinged, be to wear on the lug 32 behind three of front rod 3 to be fixed with second largest bearing pin 33, have a groove on two outer faces of second largest bearing pin 33, correspondingly also have groove on 32 liang of outermost face of back lug, one second clamp 8 is stuck in the groove of second largest bearing pin 33 and back lug 32 simultaneously, second largest like this bearing pin 33 can not rotate relative to front rod 3, back link 4 is made up of first back link 41 independent of each other and second back link 42, the front end of first back link 41 and second back link 42 is movably set on the second largest bearing pin 33 and can rotates relative to second largest bearing pin 33, and first back link 41 and second back link 42 be behind adjacent two between the lug 32, and be close to back lug 32 end faces.
The front end face of the rear end of back link 4 and tailgate 1 is hinged, promptly the front end face at tailgate 1 has second intermediate support 11, be fixed with the third-largest bearing pin 12 on this second intermediate support 11, have a groove on two outer faces of the third-largest bearing pin 12, correspondingly also have groove on 11 liang of outermost face of second intermediate support, one the 3rd clamp 9 is stuck in the groove of the third-largest bearing pin 12 and second intermediate support 11 simultaneously, the third-largest like this bearing pin 12 can not rotate relative to this second intermediate support 11, and the rear end of back link 4 is movably set on this third-largest bearing pin 12 and can rotates relative to the third-largest bearing pin 12.
Pushing away seat 6 is limited between tailgate 1 and the moving platen 2 by guide rod 14 and can moves around; pushing away seat 6 general piston rods with the mould oil cylinder of unblanking fixes; mobile drive by piston rod pushes away seat 6 and moves around between tailgate 1 and moving platen 2, and it is the conventional structure of general mould clamping mechanism of crank connecting rod.
The middle part of the other end of small rod 5 and back link 4 is hinged, promptly the other end of one second small clevis pin with head, 55 its two ends and first small rod 51 and the 3rd small rod 53 is fixed, have a groove on two outer faces of described second small clevis pin with head 55, correspondingly also have groove on the outer face of first small rod 51 and the 3rd small rod 53 other ends, one the 5th clamp 11 is stuck in the groove of second small clevis pin with head 55, first small rod 51 and the 3rd small rod 53 simultaneously, and such second small clevis pin with head 55 can not rotate relative to first small rod 51 and the 3rd small rod 53; The other end of described second small rod 52 is set in the middle part of this second small clevis pin with head 55, and two lugs 61 that push away a side of seat 6 are movably set on second small clevis pin with head 55 and also can rotate relative to second small clevis pin with head 55.
The course of work of the present invention is such:
During locked mode, Mode-locking oil cylinder pushes away seat 6 and moves towards the direction away from tailgate 1, small rod 5 moves with pushing away seat 6, open outside the upper end of the back link 4 of the other end of small rod 5 promotion simultaneously, and then open outside the lower end of drive front rod 3, promote moving platen 2 and move, thereby finish whole locked mode action towards direction away from tailgate 1;
During die sinking, the Mode-locking oil cylinder pulling pushes away seat 6 and moves towards the direction near tailgate 1, small rod 5 moves with pushing away seat 6, contract in the upper end of the back link 4 of the other end of small rod 5 pulling simultaneously, and then contract in the lower end of drive front rod 3, pulling moving platen 2 moves towards the direction near tailgate 1, thereby finishes whole die sinking action.
Claims (2)
1. mould clamping mechanism of crank connecting rod, include tailgate (1), moving platen (2) and be arranged on tailgate (1) and moving platen (2) between to drive a pair of crank connecting rod structure that moving platen moves relative to tailgate, each crank connecting rod structure comprises front rod (3) again, back link (4), small rod (5) and push away the seat (6), wherein, the rear end face of the front end of front rod (3) and moving platen (2) is hinged, the front end of the rear end of front rod (3) and back link (4) is hinged, the front end face of the rear end of back link (4) and tailgate (1) is hinged, the middle part of described small rod (5) one ends and back link (4) is hinged, the other end with push away the seat (6) one sides hinged, be limited between tailgate (1) and the moving platen (2) by guide rod (14) and also can move around and push away seat (6), it is characterized in that: described front rod (3) is a single piece, the front end of front rod (3) has and hinged two the preceding lugs (31) of moving platen (2) rear end face, the rear end of front rod (3) have with hinged three of back link (4) after lug (32);
The rear end face of described moving platen (2) has first intermediate support (21), be fixed with first bearing pin (22) on this first intermediate support (21), this first bearing pin (22) can not rotate relative to first intermediate support (21), and two preceding lugs (31) of described front rod (3) are movably set in first bearing pin (22) and go up and can rotate relative to first bearing pin (22);
Wear on the lug (32) after three of described front rod (3) and be fixed with second largest bearing pin (33), this second largest bearing pin (33) can not rotate relative to front rod (3), the front end of described back link (4) is movably set in second largest bearing pin (33) and goes up and can rotate relative to second largest bearing pin (33), and back link (4) is made up of first back link independent of each other (41) and second back link (42), after this first back link (41) and second back link (42) are positioned at adjacent two between the lug (32), and be close to back lug (32) end face;
The front end face of described tailgate (1) has second intermediate support (11), be fixed with the third-largest bearing pin (12) on this second intermediate support (11), this the third-largest bearing pin (12) can not rotate relative to this second intermediate support (11), and the rear end of described back link (4) is movably set in this third-largest bearing pin (12) and goes up and can rotate relative to the third-largest bearing pin (12);
Described small rod (5) is by first small rod independent of each other (51), second small rod (52) and the 3rd small rod (53) are formed, one end of one first its two ends of small clevis pin with head (54) and first small rod (51) and the 3rd small rod (53) is fixed, this first small clevis pin with head (54) can not rotate relative to first small rod (51) and the 3rd small rod (53), described second small rod (52) is set in the middle part of this first small clevis pin with head (54), the middle part of described first back link (41) is movably set in first small clevis pin with head (54) and goes up and can rotate relative to second small clevis pin with head (55), and first back link (41) is positioned between first small rod (51) and second small rod (52) and end face is close to each other, the middle part of described second back link (42) is movably set in first small clevis pin with head (54) and goes up and can rotate relative to first small clevis pin with head (54), and second back link (42) is positioned between second small rod (52) and the 3rd small rod (53) and end face is close to each other;
The other end of one second its two ends of small clevis pin with head (55) and first small rod (51) and the 3rd small rod (53) is fixed, this second small clevis pin with head (55) can not rotate relative to first small rod (51) and the 3rd small rod (53), the other end of described second small rod (52) is set in the middle part of this second small clevis pin with head (55), and two lugs (61) that push away a side of seat (6) are movably set in second small clevis pin with head (55) and go up and can rotate relative to second small clevis pin with head (55).
2. mould clamping mechanism of crank connecting rod according to claim 1, it is characterized in that: have a groove on two outer faces of described first bearing pin (22), correspondingly also have groove on first intermediate support (21) two outermost face, one first clamp (7) is stuck in the groove of first intermediate support (21) of first bearing pin (22) simultaneously;
Have a groove on two outer faces of described second largest bearing pin (33), correspondingly also have groove on lug (32) two outermost face of back, one second clamp (8) is stuck in the groove of second largest bearing pin (33) and back lug (32) simultaneously;
Have a groove on two outer faces of described the third-largest bearing pin (12), correspondingly also have groove on second intermediate support (11) two outermost face, one the 3rd clamp (9) is stuck in the groove of the third-largest bearing pin (12) and second intermediate support (11) simultaneously;
Have a groove on two outer faces of described first small clevis pin with head (51), correspondingly also have groove on the outer face of first small rod (51) and the 3rd small rod (53) one ends, one the 4th clamp (10) is stuck in the groove of first small clevis pin with head (54), first small rod (51) and the 3rd small rod (53) simultaneously;
Have a groove on two outer faces of described second small clevis pin with head (52), correspondingly also have groove on the outer face of first small rod (51) and the 3rd small rod (53) other end, one the 5th clamp (11) is stuck in the groove of second small clevis pin with head (55), first small rod (51) and the 3rd small rod (53) simultaneously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101014814A CN101623919B (en) | 2009-08-05 | 2009-08-05 | Mould clamping mechanism of crank connecting rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101014814A CN101623919B (en) | 2009-08-05 | 2009-08-05 | Mould clamping mechanism of crank connecting rod |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101623919A CN101623919A (en) | 2010-01-13 |
| CN101623919B true CN101623919B (en) | 2011-08-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009101014814A Active CN101623919B (en) | 2009-08-05 | 2009-08-05 | Mould clamping mechanism of crank connecting rod |
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| Country | Link |
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| CN (1) | CN101623919B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102173038A (en) * | 2011-01-25 | 2011-09-07 | 刘钢生 | Mould closing device of vertical injection moulding machine |
| CN103909607A (en) * | 2014-04-09 | 2014-07-09 | 郁震宇 | Connection rod mould locking mechanism |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5800750A (en) * | 1996-04-19 | 1998-09-01 | Industrial Technology Research Institute | Method for mold protection of crank-type clamping unit |
| CN2373243Y (en) * | 1999-03-30 | 2000-04-12 | 中美合资宁波通用塑料机械有限公司 | Amplification type mould closing device for injection machine |
| CN2579641Y (en) * | 2002-11-26 | 2003-10-15 | 王凯 | Curve elbow joint mould mechanism |
-
2009
- 2009-08-05 CN CN2009101014814A patent/CN101623919B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5800750A (en) * | 1996-04-19 | 1998-09-01 | Industrial Technology Research Institute | Method for mold protection of crank-type clamping unit |
| CN2373243Y (en) * | 1999-03-30 | 2000-04-12 | 中美合资宁波通用塑料机械有限公司 | Amplification type mould closing device for injection machine |
| CN2579641Y (en) * | 2002-11-26 | 2003-10-15 | 王凯 | Curve elbow joint mould mechanism |
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| Publication number | Publication date |
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| CN101623919A (en) | 2010-01-13 |
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Address after: 315806 Zhejiang city of Ningbo province Beilun Daqi Yongjiang Road No. 36 building 6, No. 1 Patentee after: Ningbo Haixiong Plastic Machinery Co., Ltd. Address before: 315040 No. 18, Yongtai Road, Jiangdong District, Zhejiang, Ningbo Patentee before: Ningbo Haixiong Plastic Machinery Co., Ltd. |