CN101518936B - Porous series double-toggle inside and outside turning composite clamping mechanism and method - Google Patents
Porous series double-toggle inside and outside turning composite clamping mechanism and method Download PDFInfo
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- CN101518936B CN101518936B CN2009100969921A CN200910096992A CN101518936B CN 101518936 B CN101518936 B CN 101518936B CN 2009100969921 A CN2009100969921 A CN 2009100969921A CN 200910096992 A CN200910096992 A CN 200910096992A CN 101518936 B CN101518936 B CN 101518936B
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Abstract
The invention relates to a clamping mechanism of an injection machine, in particular to a porous series double-toggle inside and outside turning composite clamping mechanism and a method. The clampingmechanism is designed aiming at the problems of nonuniform template stress and template moving speed and large impact force of the clamping mechanism of the prior injection machine field, and combine s the advantages of a mechanical twisting locked mode and a hydraulic direct pressure locked mode. The design key point of the clamping mechanism is as follows: the clamping mechanism is provided witha plurality of rotating shaft hinge points respectively arranged at the intersections of an auxiliary toggle rod and an intermediate toggle rod as well as a rear toggle rod and a front toggle rod acc ording to the number of hinge holes of the auxiliary toggle rod and the intermediate toggle rod, and is provided with 6, 7, 8 or more than 8 rotating shaft hinge points to lead the auxiliary toggle rod and the intermediate toggle rod as well as the rear toggle rod and the front toggle rod to from a straight line. The method is as follows: the intersections are formed into straight lines, and the high-pressure locked mode force is produced by inside and outside turning of toggles so as to achieve the purposes for quickly moving the modes, reasonably matching the mechanism rigidity, shortening the cylinder stroke and lowering the template weight. The invention is suitable for the development and the upgrading reconstruction of the precise injection machine.
Description
Technical field
The present invention relates to injection moulding machine mode-locking mechanism, is a kind of shifting formwork stroke is big, shifting formwork speed is fast, the mould locking distortion is little, mould is stressed evenly, the power multiplication factor is big, running is more energy-conservation porous series double-toggle inside and outside turning composite clamping mechanism and locked mode method.
Background technology
At present, the hyperbolic elbow that generally uses in the injection machine field is tiltedly arranged the formula clamping mechanism and can be divided into quadrifora and five passes by the hinged number of forming.Along with the increase of clamp force, general template size and stroke are all wanted corresponding increase, to adapt to the needs of product.; the ratio that the ratio that template size increases often increases less than stroke; and but the stroke of general double curved elbow mechanism is subjected to the restriction of template size, and big more this contradiction of clamp force is outstanding more, and this is that traditional double curved elbow mechanism is used one of reason that is restricted on large-scale clamping apparatus at present.In addition, template deformation is big, mould is stressed and shifting formwork speed is inhomogeneous, impulsive force is big, the amplification ratio of power and stroke ratio coupling are unreasonable also is wherein reason.When the design elbow-bar mechanism, often wish mechanism under the prerequisite that big template stroke requires, occupied axial location size is little; Mechanism has higher movement velocity and steady speed change, and these require with the physical dimension and the positional structure of mechanism confidential relation is arranged.This just require we design from around " shorten the clamping mechanism axial length, rationally mate inter-agency rigidity, reduce weight, improve system stiffness and shifting formwork speed, the shifting formwork stroke " study.
Summary of the invention
The objective of the invention is provides a kind of porous series double-toggle inside and outside turning composite clamping mechanism and locked mode method to the injection machine field.The clamping system of common mechanical reaming type injection machine can be reached the performance level of ordinary straight press in the stress transmission to mould by the present invention.Make that it can solve that template deformation is big, mould is stressed and shifting formwork speed is inhomogeneous, impulsive force is big, amplification ratio and stroke ratio power mate irrational technical problem; Reasonably shorten the axial length of clamping mechanism simultaneously, improve the system stiffness of complete machine and reduce complete machine weight.The objective of the invention is to realize by following technical solution.
A kind of porous series double-toggle inside and outside turning composite clamping mechanism, the locked mode joint component of this clamping mechanism is made up of Mode-locking oil cylinder, mode transfer template, auxiliary toggle link, short toggle link, crosshead, middle toggle link, back toggle link, front link, moving platen; Its design main points are according to the hinged hole count on auxiliary toggle link and the back toggle link, intersection at auxiliary toggle link and middle toggle link, back toggle link and front link is provided with six pass rotating shaft pin joints, promptly be provided with six rotating shaft pin joints at the auxiliary toggle link on top and the intersection of middle toggle link, back toggle link and front link, auxiliary toggle link of guiding and middle toggle link, back toggle link and front link two places form straight line; Promptly be provided with six rotating shaft tie points at the auxiliary toggle link of lower part and the intersection of middle toggle link, back toggle link and front link, auxiliary toggle link of guiding and middle toggle link, back toggle link and front link two places form straight line.Six rotating shaft pin joints on described top be respectively auxiliary toggle link one end and the mode transfer template hinged, the auxiliary toggle link other end is simultaneously hinged with stub shaft one end and middle axostylus axostyle one end, the stub shaft other end and crosshead are hinged, the middle axostylus axostyle other end is hinged with back axostylus axostyle one end and preceding axostylus axostyle one end simultaneously, the back axostylus axostyle other end and crosshead are hinged, before the axostylus axostyle other end and moving platen hinged, lower part and top are divided into and are symmetrical arranged.
A kind of porous series double-toggle inside and outside turning composite clamping mechanism, the locked mode joint component of this clamping mechanism is made up of Mode-locking oil cylinder, mode transfer template, auxiliary toggle link, short toggle link, crosshead, middle toggle link, back toggle link, front link, moving platen; Its design main points are according to the hinged hole count on auxiliary toggle link and the back toggle link, intersection at auxiliary toggle link and middle toggle link, back toggle link and front link is provided with seven pass rotating shaft pin joints, promptly be provided with seven rotating shaft pin joints at the auxiliary toggle link on top and the intersection of middle toggle link, back toggle link and front link, auxiliary toggle link of guiding and middle toggle link, back toggle link and front link two places form straight line; Promptly be provided with seven rotating shaft pin joints at the auxiliary toggle link of lower part and the intersection of middle toggle link, back toggle link and front link, auxiliary toggle link of guiding and middle toggle link, back toggle link and front link two places form straight line.Seven rotating shaft pin joints on described top be respectively auxiliary toggle link one end and the mode transfer template hinged, the auxiliary toggle link other end is simultaneously hinged with stub shaft one end and middle axostylus axostyle one end, the stub shaft other end and crosshead are hinged, the middle axostylus axostyle other end is hinged with the bar portion of back axostylus axostyle, back axostylus axostyle one end and crosshead are hinged, the back axostylus axostyle other end and preceding axostylus axostyle one end are hinged, and the preceding axostylus axostyle other end and moving platen are hinged, and lower part and top are divided into and are symmetrical arranged.
A kind of porous series double-toggle inside and outside turning composite clamping mechanism, the locked mode joint component of this clamping mechanism is made up of Mode-locking oil cylinder, mode transfer template, auxiliary toggle link, short toggle link, crosshead, middle toggle link, back toggle link, front link, moving platen; Its design main points are according to the hinged hole count on auxiliary toggle link and the back toggle link, intersection at auxiliary toggle link and middle toggle link, back toggle link and front link is provided with eight pass rotating shaft pin joints, promptly be provided with eight rotating shaft pin joints at the auxiliary toggle link on top and the intersection of middle toggle link, back toggle link and front link, auxiliary toggle link of guiding and middle toggle link, back toggle link and front link two places form straight line; Promptly be provided with eight rotating shaft pin joints at the auxiliary toggle link of lower part and the intersection of middle toggle link, back toggle link and front link, auxiliary toggle link of guiding and middle toggle link, back toggle link and front link two places form straight line.Eight rotating shaft pin joints on described top be respectively auxiliary toggle link one end and the mode transfer template hinged, the bar portion and stub shaft one end of auxiliary toggle link are hinged, the other end and middle axostylus axostyle one end of auxiliary toggle link are hinged, the stub shaft other end and crosshead are hinged, the middle axostylus axostyle other end is hinged with the bar portion of back axostylus axostyle, and an end and the crosshead of back axostylus axostyle are hinged, and the other end of back axostylus axostyle and preceding axostylus axostyle one end are hinged, before the axostylus axostyle other end and moving platen hinged, lower part and top are divided into and are symmetrical arranged.
The setting of a plurality of rotating shaft pin joints of above-mentioned described six, seven, octal type; be according to the spacing between mode transfer template and the moving platen; and the size of mould opening force and mold clamping force, and around " shorten the clamping mechanism axial length, rationally mate inter-agency rigidity, reduce weight, improve system stiffness and shifting formwork speed, the shifting formwork stroke " designing requirement determine.
Auxiliary toggle link of guiding and middle toggle link, back toggle link and front link two places form straight line when mode-lock status.Described six passes, seven apertures in the human head type, octal type, and the angular range between the auxiliary toggle link of porous type and middle toggle link, back toggle link and front link is 170～180 degree, and this helps regulating the formation of auxiliary toggle link and middle toggle link, back toggle link and front link two place's straight lines in certain included angle.
The mould structure of the double-toggle inside and outside turning composite clamping mechanism of above-mentioned six pass rotating shaft pin joints, seven apertures in the human head type rotating shaft pin joint, octal type rotating shaft pin joint; be by shortening the distance of moving platen support force fulcrum; the suffered flexural deformation in moving platen center reduces greatly when making mechanism's locked mode; the stressed system stiffness that improves complete machine that evenly reaches of mould when making locked mode; thereby can reduce the thickness of template; reduce the weight of template, reach the purpose of energy savings.
The mode transfer formwork structure of the double-toggle inside and outside turning composite clamping mechanism of above-mentioned six pass rotating shaft pin joints, seven apertures in the human head type rotating shaft pin joint, octal type rotating shaft pin joint; be on the basis of traditional mode transfer template, except that original support force point, to increase by two stressed fulcrum holes again; and the distance of these two fulcrum holes of corresponding shortening; mechanism is reduced greatly in the suffered flexural deformation of high-voltage lock mould state mode transfer template center; improved the rigidity of mode transfer template when the high-voltage lock mould state; thereby reduce the weight of template, energy savings.
A kind of locked mode method of porous series double-toggle inside and outside turning composite clamping mechanism; this mechanism is made up of Mode-locking oil cylinder, mode transfer template, auxiliary toggle link, short toggle link, crosshead, middle toggle link, back toggle link, front link, moving platen; the locking of this method is provided with a plurality of rotating shaft pin joints by the intersection of auxiliary toggle link and middle toggle link, back toggle link and front link; produce the amplification of twice power; two places of auxiliary toggle link of guiding and middle toggle link, back toggle link and front link form straight line, produce high-voltage lock mould power.Process is after the Mode-locking oil cylinder oil-feed, the promotion crosshead is advanced, and the pin joint of auxiliary toggle link of guiding and middle toggle link turns up, thereby causes in the pin joint of back toggle link and front link and turn over, reach auxiliary toggle link and middle toggle link, back toggle link and front link two places and form straight line, finally produce high-voltage lock mould; The die sinking of this method is turned in the pin joint of auxiliary toggle link of guiding and middle toggle link by the short toggle link of crosshead pulling, thereby the pin joint that causes back toggle link and front link turns up, and produces the action that front link pulling moving platen is realized die sinking.
By mechanism link up inside and outside stir work, realizes that the continuous mould of unblanking moves.The composite move owing to turn up in the mechanism has shortened the interarticular distance of mechanism, has saved room and time, has shortened the stroke of Mode-locking oil cylinder, thereby has also shortened the axial length of mechanism, has improved shifting formwork speed and shifting formwork stroke greatly.
Shifting formwork stroke of the present invention is big, shifting formwork speed is fast, template deformation is little, oil cylinder stroke shortens.When the design elbow-bar mechanism, to intend under the prerequisite that the large form stroke requires, occupied axial location size is little; Mechanism has high movement velocity and steady speed change and big power amplification ratio ability, and these require with the physical dimension and the positional structure of mechanism confidential relation is arranged.
The present invention has following characteristics:
(1) mid-toggle design, the maintenance toggle runs up and has the advantages that the vertical compression mould clamping application of force is concentrated;
(2) the locked mode application of force can be more near mould, can make that template deformation is littler, mould is stressed more even, thereby reaches the protection mould and improve the purpose of goods precision;
(3) mechanism's axial length shortens, weight reduces;
(4) oil cylinder shortens, and can promote shifting formwork speed, sees accompanying drawing 1;
(5) stressed in the middle of the moving platen 9, can reduce the outer metaboly of opening, can alleviate moving platen weight like this, improve service life, it is more energy-conservation to turn round;
(6) both sides are stressed respectively in the middle of the mode transfer template 2 and up and down, can offset the thrust that a part is produced by oil cylinder, reduce outer metaboly of mode transfer template, thus can lower the mode transfer template weight, improve its service life, energy savings;
(7) because of toggle link 8 in the mold process of unblanking, moving platen is produced transport motion, speedup is big, the fireballing characteristics of shifting formwork so have.See accompanying drawing 8 new mechanism moving platen curve movements;
(8) by the composite move that turns up in the pin joint shifting formwork stroke is strengthened, thereby made the axial length that under same shifting formwork stroke, has relatively shortened clamping mechanism with traditional mechanism.
The present invention realizes movement velocity and steady speed change and the effective big power amplification ratio that clamping mechanism is higher, and in the service life of bigger raising mode transfer template and moving platen, its method also is easy to implement.Solved the problem that injection machine field template is stressed He shifting formwork speed is inhomogeneous, impulsive force is big, amplification ratio and the stroke ratio of having filled up power mate irrational blank, are applicable to the invention of precise injection machine and renovate, and have higher popularization and application values.
Description of drawings
Fig. 1 a of Fig. 1, Fig. 1 b, Fig. 1 c are respectively the schematic diagrames of six passes, seven apertures in the human head type, octal type series mechanism.
Fig. 2 a of Fig. 2, Fig. 2 b, Fig. 2 c are respectively six passes, seven apertures in the human head type, octal type series mechanism supercharging action schematic diagram.
Fig. 3 a of Fig. 3, Fig. 3 b, Fig. 3 c are respectively that schematic diagram is finished in six passes, seven apertures in the human head type, the supercharging action of octal type series mechanism.
Fig. 4 a of Fig. 4, Fig. 4 b, Fig. 4 c are respectively that schematic diagram is finished in six passes, seven apertures in the human head type, the die sinking of octal type series mechanism.
Fig. 5 is the schematic diagram of traditional mechanism.
Fig. 6 is six passes, seven apertures in the human head type, octal type series mechanism moving platen movement profiles.
Fig. 7 is a traditional mechanism moving platen movement profiles.
Fig. 8 is six passes, seven apertures in the human head type, octal type series mechanism stressed simplified schematic diagram of moving platen when mode-lock status.
Fig. 9 is traditional mechanism stressed simplified schematic diagram of moving platen when mode-lock status.
Figure 10 is six passes, seven apertures in the human head type, octal type series mechanism mode transfer template stress deformation simplified schematic diagram (dotted line is a new mechanism mode transfer template deformation situation) when mode-lock status.
Figure 11 traditional mechanism is mode transfer template stress deformation simplified schematic diagram (dotted line is traditional mode transfer template deformation situation) when mode-lock status.
Serial number name in the above accompanying drawing is: 1, Mode-locking oil cylinder, 2, the mode transfer template, 3, auxiliary toggle link, 4, short toggle link, 5, crosshead, 6, middle toggle link, 7, the back toggle link, 8, front link, 9, moving platen, 10, mould, 11, the traditional locks mould oil cylinder, 12, traditional moving platen.
The specific embodiment
The specific embodiment now in conjunction with the accompanying drawings 1, the unblank action situation of mould of accompanying drawing 2, accompanying drawing 3,4 pairs of injection machines of accompanying drawing is described.
When carrying out locked mode (seeing among Fig. 2), when the locked mode action is carried out in Mode-locking oil cylinder 1 oil-feed, promoting crosshead 5 advances, promote to assist toggle link 3 and middle toggle link 6 that back toggle link 7 is stretched downwards by short toggle link 4, promote front link 8, travel forward thereby promote moving platen 9, realize the action of straight line high-voltage lock mould, see that schematic diagram is finished in the action of accompanying drawing 3.
When carrying out die sinking,, move after spurring crosshead 5 from the other end oil-feed of Mode-locking oil cylinder 1, cause that by short toggle link 4 auxiliary toggle link 3 pulls down, middle toggle link 6 is pulled upwardly back toggle link 7, thereby makes front link 8 pulling moving platens 9 carry out the die sinking action, sees that schematic diagram is finished in the die sinking of accompanying drawing 4.
Traditional mechanism moving platen movement profiles shown in six passes shown in the accompanying drawing 6, seven apertures in the human head type, octal type series mechanism's moving platen movement profiles and the accompanying drawing 7 compares, and the former opening speed is all fast and short than the latter with the time.
Claims (5)
1. porous series double-toggle inside and outside turning composite clamping mechanism, the locked mode joint component of this clamping mechanism is made up of Mode-locking oil cylinder, mode transfer template, auxiliary toggle link, short toggle link, crosshead, middle toggle link, back toggle link, front link, moving platen; It is characterized in that according to the hinged hole count on auxiliary toggle link and the back toggle link, intersection at auxiliary toggle link and middle toggle link, back toggle link and front link is provided with six pass rotating shaft pin joints, promptly be provided with six rotating shaft pin joints at the auxiliary toggle link (3) on top and the intersection of middle toggle link (6), back toggle link (7) and front link (8), auxiliary toggle link of guiding and middle toggle link, back toggle link and front link two places form straight line; Promptly be provided with six rotating shaft pin joints at the auxiliary toggle link of lower part and the intersection of middle toggle link, back toggle link and front link, auxiliary toggle link of guiding and middle toggle link, back toggle link and front link two places form straight line; Six rotating shaft pin joints on described top be respectively auxiliary toggle link (3) one ends and mode transfer template (2) hinged, the auxiliary toggle link other end is simultaneously hinged with stub shaft (4) one ends and middle axostylus axostyle (6) one ends, the stub shaft other end and crosshead (5) are hinged, the middle axostylus axostyle other end is hinged with back axostylus axostyle (7) one ends and preceding axostylus axostyle (8) one ends simultaneously, the back axostylus axostyle other end and crosshead are hinged, before the axostylus axostyle other end and moving platen (9) hinged, lower part and top are divided into and are symmetrical arranged.
2. porous series double-toggle inside and outside turning composite clamping mechanism, the locked mode joint component of this clamping mechanism is made up of Mode-locking oil cylinder, mode transfer template, auxiliary toggle link, short toggle link, crosshead, middle toggle link, back toggle link, front link, moving platen; It is characterized in that according to the hinged hole count on auxiliary toggle link and the back toggle link, intersection at auxiliary toggle link and middle toggle link, back toggle link and front link is provided with seven pass rotating shaft pin joints, promptly be provided with seven rotating shaft pin joints at the auxiliary toggle link on top and the intersection of middle toggle link, back toggle link and front link, auxiliary toggle link of guiding and middle toggle link, back toggle link and front link two places form straight line; Promptly be provided with seven rotating shaft pin joints at the auxiliary toggle link of lower part and the intersection of middle toggle link, back toggle link and front link, auxiliary toggle link of guiding and middle toggle link, back toggle link and front link two places form straight line; Seven rotating shaft pin joints on described top be respectively auxiliary toggle link (3) one ends and mode transfer template (2) hinged, the auxiliary toggle link other end is simultaneously hinged with stub shaft (4) one ends and middle axostylus axostyle (6) one ends, the stub shaft other end and crosshead (5) are hinged, the middle axostylus axostyle other end is hinged with the bar portion of back axostylus axostyle (7), back axostylus axostyle one end and crosshead are hinged, the back axostylus axostyle other end and preceding axostylus axostyle (8) one ends are hinged, before the axostylus axostyle other end and moving platen (9) hinged, lower part and top are divided into and are symmetrical arranged.
3. porous series double-toggle inside and outside turning composite clamping mechanism, the locked mode joint component of this clamping mechanism is made up of Mode-locking oil cylinder, mode transfer template, auxiliary toggle link, short toggle link, crosshead, middle toggle link, back toggle link, front link, moving platen; It is characterized in that according to the hinged hole count on auxiliary toggle link and the back toggle link, intersection at auxiliary toggle link and middle toggle link, back toggle link and front link is provided with eight pass rotating shaft pin joints, promptly be provided with eight rotating shaft pin joints at the auxiliary toggle link on top and the intersection of middle toggle link, back toggle link and front link, auxiliary toggle link of guiding and middle toggle link, back toggle link and front link two places form straight line; Promptly be provided with eight rotating shaft pin joints at the auxiliary toggle link of lower part and the intersection of middle toggle link, back toggle link and front link, auxiliary toggle link of guiding and middle toggle link, back toggle link and front link two places form straight line; Eight rotating shaft pin joints on described top be respectively auxiliary toggle link (3) one ends and mode transfer template (2) hinged, the bar portion and stub shaft (4) one ends of auxiliary toggle link are hinged, the other end and middle axostylus axostyle (6) one ends of auxiliary toggle link are hinged, the stub shaft other end and crosshead (5) are hinged, the middle axostylus axostyle other end is hinged with the bar portion of back axostylus axostyle (7), one end and the crosshead of back axostylus axostyle are hinged, the other end of back axostylus axostyle and preceding axostylus axostyle (8) one ends are hinged, before the axostylus axostyle other end and moving platen (9) hinged, lower part and top are divided into and are symmetrical arranged.
4. as claim 1 or 2 or 3 described porous series double-toggle inside and outside turning composite clamping mechanisms; it is characterized in that the angular range between described auxiliary toggle link and middle toggle link, back toggle link and front link is 170～180 degree, this helps regulating the formation of auxiliary toggle link and middle toggle link, back toggle link and front link two place's straight lines in certain included angle.
5. as the locked mode method of claim 1 or 2 or 3 described a kind of porous series double-toggle inside and outside turning composite clamping mechanisms, this mechanism is by Mode-locking oil cylinder (1), mode transfer template (2), auxiliary toggle link (3), short toggle link (4), crosshead (5), middle toggle link (6), back toggle link (7), front link (8), moving platen (9) is formed, the method is characterized in that locking is by auxiliary toggle link (3) and middle toggle link (6), back toggle link (7) is provided with a plurality of rotating shaft tie points with the intersection of front link (8), produce the amplification of twice power, auxiliary toggle link of guiding and middle toggle link, two places of back toggle link and front link form straight line, produce high-voltage lock mould power; Die sinking is by the short toggle link (4) of crosshead (5) pulling, turn in the pin joint of auxiliary toggle link (3) of guiding and middle toggle link (6), thereby the pin joint that causes back toggle link (7) and front link (8) turns up, and produces the action that front link (8) pulling moving platen (9) is realized die sinking; By interior action of turning up, shortened the stroke of Mode-locking oil cylinder (1), thereby shortened the axial length of clamping mechanism greatly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100969921A CN101518936B (en) | 2009-03-26 | 2009-03-26 | Porous series double-toggle inside and outside turning composite clamping mechanism and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100969921A CN101518936B (en) | 2009-03-26 | 2009-03-26 | Porous series double-toggle inside and outside turning composite clamping mechanism and method |
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| Publication Number | Publication Date |
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| CN101518936A CN101518936A (en) | 2009-09-02 |
| CN101518936B true CN101518936B (en) | 2011-07-20 |
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| CN2009100969921A Expired - Fee Related CN101518936B (en) | 2009-03-26 | 2009-03-26 | Porous series double-toggle inside and outside turning composite clamping mechanism and method |
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| CN102729428A (en) * | 2012-06-11 | 2012-10-17 | 无锡天惠塑机有限公司 | Mold clamping template apparatus |
| CN105537560A (en) * | 2016-02-06 | 2016-05-04 | 黄顺德 | Shooting device of die casting machine |
| CN110948834A (en) * | 2019-12-11 | 2020-04-03 | 徐福全 | Synchronous die assembly and side seam heat uniform blow molding machine die assembly equipment |
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