CN202592694U - Connecting rod mechanism of die closing device - Google Patents
Connecting rod mechanism of die closing device Download PDFInfo
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- CN202592694U CN202592694U CN 201220272964 CN201220272964U CN202592694U CN 202592694 U CN202592694 U CN 202592694U CN 201220272964 CN201220272964 CN 201220272964 CN 201220272964 U CN201220272964 U CN 201220272964U CN 202592694 U CN202592694 U CN 202592694U
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- connecting rod
- rod
- back link
- small
- hinged
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Abstract
The utility model discloses a connecting rod mechanism of a die closing device. Two sets of same connecting rods are symmetrically arranged at the upper end and the lower end of the connecting rod mechanism; each set of connecting rods comprise a first small connecting rod, a second small connecting rod, a first rear connecting rod, a second rear connecting rod, a middle rear connecting rod, a first front connecting rod and a second front connecting rod, wherein the middle rear connecting rod is positioned between the first rear connecting rod and the second rear connecting rod; the rear ends of the middle rear connecting rod, the first rear connecting rod and the second rear connecting rod are all hinged with a first connecting rod bracket; the rear end of the first front connecting rod is clamped between the front ends of the first rear connecting rod and the middle rear connecting rod and hinged with the front ends of the first rear connecting rod and the middle rear connecting rod; the rear end of the second front connecting rod is clamped between the front ends of the middle rear connecting rod and the second rear connecting rod and hinged with the front ends of the middle rear connecting rod and the second rear connecting rod; the front ends of the two front connecting rods are hinged with a second connecting rod bracket respectively; the first small connecting rod is parallel to the second small connecting rod; one end of the first small connecting rod is hinged with the middle rear connecting rod; and the other end of the first small connecting rod is hinged with a cross head. The connecting rod mechanism is stable in structure and strong in anti-twisting force; and the technical problem of die adjustment trouble in the prior art is solved.
Description
Technical field
The utility model relates to a kind of linkage of mold closing mechanism, is specifically related to the linkage of injection machine mold closing mechanism, belongs to mechanical design field.
Background technology
The matched moulds parts are one of vitals of injection machine, and its function is to realize opening and closing motion, make mould closes produce the system resilience distortion and reach clamp force, with mold-locked.
Present middle-size and small-size injection machine adopts hyperbolic elbow formula mold closing mechanism more, and like Fig. 1, the operating principle of this form is: when opening and closing mould, and closing cylinder 1 oil-feed, piston rod promotes hyperbolic elbow linkage 5 and drives moving platen 6 and the motion of mould realization keying mould thereof; During the mould contact, crank connecting rod 5 is in not straight configuration, and crank connecting rod mechanism 5 produces the amplification of power under die cylinder 1 thrust, and the matched moulds system is deformed, till crank connecting rod 5 stretches the entering self-locking.The degree that connecting rod does not stretch during the mould contact is to match with die cylinder through the mode transfer device, adjusts by the desired clamp force of technology.
It is big that the mold closing mechanism of this hyperbolic elbow formula structure has a mold clamping force, the characteristics that the reinforcement multiple is big.The linkage that adopts changes the translational speed of template, during matched moulds by zero to the fastest, the back is slow, is zero again when locking, and is then opposite during die sinking.The kinetic characteristic of Here it is linkage, it just in time meets the requirement of mold closing mechanism.
But Type of Toggle Clamping Units all is that the motion through linkage produces mold clamping force, therefore, the high template depth of parallelism and long life-span arranged, and its desired machining accuracy is higher.During die sinking, toggle link is contracted in fuselage afterbody, makes the stroke of moving die plate bigger.During the adjustment clamp force, the toggle both arms must be consistent, even small length difference is arranged, also can cause the template unbalance stress, thereby make mold deflection.So, produce the mode transfer trouble, the shortcoming of easy abrasion.
The utility model content
The technical problem that the utility model will solve is to overcome existing defective, provides a kind of compact conformation, polarization strong, is difficult for the linkage of the mold closing mechanism of torsional deformation.
In order to solve the problems of the technologies described above, the utility model provides following technical scheme:
A kind of linkage of mold closing mechanism, its rear end and mode transfer template are hinged, and front end and moving platen are hinged; Comprise front rod, back link, small rod, hinged through small rod with crosshead, this linkage is arranged with two groups of identical connecting rods up and down; Every group of connecting rod all comprises first small rod, second small rod, first back link, second back link, middle back link, first front rod, second front rod; The two ends of each connecting rod all offer fraising, wherein
In back link be positioned at the centre of first back link and second back link, three connecting rod length is equal and be parallel to each other, the rear end of three connecting rods is all hinged with the first connecting rod support of being located on the mode transfer template;
The rear end of first front rod is clipped in the middle of the front end of first back link and middle back link, and hinged with it, and the rear end of second front rod is clipped in the middle of the front end of the middle back link and second back link, and hinged with it;
The front end of two front rods is hinged with the second connecting rod support of being located on the moving platen respectively;
First small rod and end parallel with second small rod and middle back link are hinged, and the other end and crosshead are hinged.
Between the rear end of the said first connecting rod support and first back link, second back link; Between the rear end of the front end of first back link, middle back link, second back link and first front rod, second front rod, hinged through first bearing pin, second largest bearing pin, the third-largest bearing pin respectively between the front end of first front rod, second front rod and the second connecting rod support; Between said first small rod, second small rod and the back link and and crosshead between hinged through first small clevis pin with head, second small clevis pin with head respectively.
First back link is identical with second back link, and first front rod is identical with second front rod, and first small rod is identical with second small rod.
The two ends of said three big bearing pins all are fixed with large cover; Be equipped with big hinge key between said three at least one ends of big bearing pin and the corresponding large cover; First back link, second back link, first bearing pin, second largest bearing pin are fixed together, and form firm big rectangular frame overall structure; Second connecting rod support and the third-largest bearing pin are fixed together; The two ends of said two small clevis pin with head all are fixed with minor flaps; Be equipped with little hinge key between said two at least one ends of small clevis pin with head and the corresponding minor flaps; First small clevis pin with head, second small clevis pin with head, first small rod, second small rod are fixed together, and form firm small rectangle framework overall structure.The benefit of this structural design has: 1, the hinge key has the effect of location, avoids connecting rod in motion process, to produce structural skew, makes compact conformation firm; 2, the formation of big or small rectangular frame; Make whole connecting rod machine steadily compact more; It is unbalanced and cause the not parallel drawback with the pull bar distortion of template effectively to have avoided being easy to generate in the conventional linkage mechanism active force; Avoid causing extrusion abrasion to quicken, guarantee the uniformity of each root connecting rod body of rod motion bearing pin because of the difference of the connecting rod body of rod.Reduce the trouble of mode transfer, and improved clamp force and locked mode speed.
Further, flexibly connect the position on the external diameter of said big bearing pin and be provided with big hinge lining, flexibly connect the position on the external diameter of said small clevis pin with head and be provided with little hinge lining.The rear end of the front end of back link and first front rod, second front rod is rotatably assorted trimmer is installed between the face in said.Trimmer plays the effect of trimming moment.
Further, every group of connecting rod of said linkage all comprises a plurality of back links and a plurality of front rod, back link both sides in being symmetricly set between the back link, and back link equates with the number of front rod.
The linkage operation principle of the utility model mold closing mechanism is following:
During die sinking, linkage is contracted in fuselage afterbody, and when pressure oil entering die cylinder, when promoting the piston reach, linkage promotes moving platen and carries out matched moulds.When the mould die joint began closure, the connecting rod linkage did not stretch being aligned as yet and arranges.At this moment, toggle link, template and mould are not stressed, and pull bar does not receive pulling force yet.When linkage all trails, when being aligned was arranged, matched moulds put in place, and locked mode finishes.
The matched moulds process, the movement velocity of moving platen begins to change to the end from matched moulds.Matched moulds begins, and speed is slowed down gradually again later on very near maximum speed by zero, and speed is zero during termination, and clamp force then rises to the locked mode tonnage rapidly.This just in time meets the mold closing mechanism requirement.Equally, the movement velocity of template also changes in the die sinking process, but with above-mentioned opposite.
The linkage that the utility model provides; Adopt a kind of unprecedented structural design, simple symmetric, its high polarization has been strengthened the stability of connecting rod in motion process; Anti-twist power is strong; Reduced the frictional force in the motion process, solved the technical barrier of mode transfer trouble in the prior art, and produced the bigger good result of sealed power.
Description of drawings
Accompanying drawing is used to provide the further understanding to the utility model, and constitutes the part of specification, is used to explain the utility model with the embodiment of the utility model, does not constitute the restriction to the utility model.In the accompanying drawings:
Fig. 1 is the mold closing mechanism sketch map that adopts linkage in the present technology;
Fig. 2 is the structural front view of the utility model linkage;
Fig. 3 is the structure left view of the utility model linkage;
Fig. 4 is the vertical view of the utility model linkage.
Among Fig. 1, the 1-die cylinder, 2-mode transfer device, the 3-rear pattern plate, the 4-pull bar, the 5-crank connecting rod, the 6-moving platen, the 7-solid plate, 8-ejects oil cylinder;
Among Fig. 2 to Fig. 4, back link among the 10-, 11-first back link, 12-second back link, 21-first front rod, 22-second front rod; 31-first small rod, 32-second small rod, 41-first connecting rod support, 42-second connecting rod support, the first bearing pin of 51-, the second largest bearing pin of 52-; The third-largest bearing pin of 53-, 61-first small clevis pin with head, 62-second small clevis pin with head, the big hinge key of 71-, the little hinge key of 72-, the big hinge lining of 81-; The little hinge lining of 82-, 83-trimmer, 91-large cover, 92-minor flaps, 100-crosshead.
The specific embodiment
Describe below in conjunction with the preferred embodiment of accompanying drawing, should be appreciated that preferred embodiment described herein only is used for explanation and explains the utility model, and be not used in qualification the utility model the utility model.
As shown in Figure 1; A kind of linkage of injection machine mold closing mechanism; Be symmetrically arranged with two groups of connecting rods up and down, every group of connecting rod all comprises first back link 11, middle back link 10, second back link 12, first front rod 21, second front rod 22, first small rod 31, second small rod 32, and the two ends of described every connecting rod all are provided with fraising; Concrete structure constitutes by five places are hinged, and is specific as follows:
First hinged place: the rear end of first back link 11, middle back link 10, second back link 12 is hinged through big bearing pin 51 1 with the first connecting rod support of being located on the mode transfer template 41;
Second hinged place: the rear end of the front end of first back link 11, middle back link 10, second back link 12 and first front rod 21, second front rod 22 is hinged through second largest bearing pin 52;
The 3rd hinged place: the front end of first front rod 21, second front rod 22 is hinged through the third-largest bearing pin 53 with the second connecting rod support of being located on the moving platen 42;
The 4th hinged place: between the fraising at two ends, also be provided with fraising on the middle back link 10, the upper end of first small rod 31, second small rod 32 is clipped in the middle middle back link 10, and is hinged through little pin uranium 1;
The 5th hinged place: the lower end of first small rod 31, second small rod 31 and crosshead 100 are hinged through second small clevis pin with head 62.
Wherein, first back link 11, second back link 12 are identical, and first front rod 21, second front rod 22 are identical, and middle back link 11 is positioned at the centre of first back link 11 and second back link 12, and length equates with it.
The two ends of three big bearing pins all are fixed with large cover 91; The same end of three big bearing pins respectively and be provided with big hinge key 71 between the corresponding large cover 91; Like this; First back link 11, second back link 12, first bearing pin 51, second largest bearing pin 51 are fixed together firmly, form a fixing big rectangular frame overall structure; Second connecting rod support 42 is fixed together with the third-largest bearing pin 53 firmly; The two ends of two small clevis pin with head all are fixed with minor flaps 92; Two same ends of small clevis pin with head respectively and be respectively equipped with little hinge key 72 between the corresponding minor flaps 92; Like this; First small clevis pin with head 61, second small clevis pin with head 62, first small rod 31, second small rod 32 are fixed together firmly, form a fixing small rectangle framework overall structure.
The position that on the external diameter of first bearing pin 51, flexibly connects with first connecting rod support 41 is equipped with big hinge lining 81 respectively; The position that on the external diameter of second largest bearing pin 52, the third-largest bearing pin 53, flexibly connects with two front rods is respectively equipped with big hinge lining 81; The position that on the external diameter of first small clevis pin with head 61, flexibly connects with middle back link 10 is provided with little hinge lining 82, and the position that on the external diameter of second small clevis pin with head 62, flexibly connects with crosshead 100 is provided with little hinge lining 82.Big hinge lining 81 is a high-tension brass with the material of little hinge lining 82.
Being rotatably assorted of middle back link 10 front ends and two front rod rear ends trimmer 83 is installed between the face, the material of trimmer 83 is No. 45 steel.
In injection machine folding mold process, when die sinking put in place, dotted line was represented among the form of linkage such as Fig. 2.When the moving crosshead 100 of piston rod heap moves forward; Crosshead 100 drives first small clevis pin with head 61 and travels forward; Because first small clevis pin with head 61, first small rod 31, second small rod 32, second small clevis pin with head 62 are fixedly connected to form a firm small rectangle frame structure; Second small clevis pin with head drives first small rod 31, second small rod 32, and then drives second small clevis pin with head 62 and travel forward; Back link rotated stretching, extension forward around first bearing pin 51 during second small clevis pin with head 62 drove; Again because first bearing pin 51, back link 11, back link 12, second largest bearing pin 52 are fixedly connected to form a firm big rectangular frame structure, drive second largest bearing pin 52 along with middle back link 10 stretches forward together when making first bearing pin 51 rotations; Second largest bearing pin 52 drives first front rod 21, second front rod 22 together stretches forward, moves forward thereby promote moving platen.Open up to middle back link 10 and two front rod full extension, when being aligned was arranged, matched moulds put in place, and solid line is represented among the form of linkage such as Fig. 2 at this moment.Opposite process, crosshead move backward, state in the time of finally can getting back to die sinking again and put in place.Thus,, finally drive moving platen and seesaw along with the reciprocating motion of piston rod, thus the process of completion folding mould.
The above is merely the preferred embodiment of the utility model; Be not limited to the utility model; Although the utility model has been carried out detailed explanation with reference to previous embodiment; For a person skilled in the art, it still can be made amendment to the technical scheme that aforementioned each embodiment put down in writing, and perhaps part technical characterictic wherein is equal to replacement.All within the spirit and principle of the utility model, any modification of being done, be equal to replacement, improvement etc., all should be included within the protection domain of the utility model.
Claims (7)
1. the linkage of a mold closing mechanism; Its rear end and mode transfer template are hinged, and front end and moving platen are hinged, comprise front rod, back link, small rod; This linkage and crosshead are hinged through small rod; It is characterized in that: this linkage is arranged with two groups of identical connecting rods up and down, and every group of connecting rod all comprises first small rod (31), second small rod (31), first back link (11), second back link (12), middle back link (10), first front rod (21), second front rod (22), and the two ends of each connecting rod all offer fraising; Wherein
In back link (10) be positioned at the centre of first back link (11) and second back link (12), three connecting rod length equates and is parallel to each other that the rear end of three connecting rods is all hinged with the first connecting rod support of being located on the mode transfer template (41);
The rear end of first front rod (21) is clipped in the middle of the front end of first back link (11) and middle back link (10); And it is hinged with it; The rear end of second front rod (22) is clipped in the middle of the front end of middle back link (10) and second back link (12), and hinged with it;
The front end of two front rods is hinged with the second connecting rod support of being located on the moving platen (42) respectively;
First small rod (31) and end parallel with second small rod (32) and middle back link (10) are hinged, and the other end and crosshead (100) are hinged.
2. the linkage of mold closing mechanism according to claim 1; It is characterized in that: between the rear end of said first connecting rod support (41) and first back link (11), second back link (12); Between the rear end of the front end of first back link (11), middle back link (10), second back link (12) and first front rod (21), second front rod (22), hinged through first bearing pin (51), second largest bearing pin (53), the third-largest bearing pin (53) respectively between the front end of first front rod (21), second front rod (22) and the second connecting rod support (42); Between said first small rod (31), second small rod (32) and the middle back link (10) and and crosshead (100) between hinged through first small clevis pin with head (61), second small clevis pin with head (62) respectively.
3. the linkage of mold closing mechanism according to claim 2; It is characterized in that: the two ends of said three big bearing pins all are fixed with large cover (91); Be equipped with big hinge key (71) between said three at least one ends of big bearing pin and the corresponding large cover (91), first back link (11), second back link (12), first bearing pin (51), second largest bearing pin (52) are fixed together; Second connecting rod support (42) is fixed together with the third-largest bearing pin (53); The two ends of said two small clevis pin with head all are fixed with minor flaps (92); Be equipped with little hinge key (72) between said two at least one ends of small clevis pin with head and the corresponding minor flaps (92), first small clevis pin with head (61), second small clevis pin with head (62), first small rod (31), second small rod (32) are fixed together.
4. according to the linkage of claim 2 or 3 each described mold closing mechanisms; It is characterized in that: the position that flexibly connects on the external diameter of said three big bearing pins is provided with big hinge lining (81), and the position that flexibly connects on the external diameter of said small clevis pin with head is provided with little hinge lining (82).
5. the linkage of mold closing mechanism according to claim 1; It is characterized in that: said first back link (11) is identical with second back link (12); First front rod (21) is identical with second front rod (22), and first small rod (31) is identical with second small rod (32).
6. the linkage of mold closing mechanism according to claim 1 is characterized in that: the rear end of the front end of back link (10) and first front rod (21), second front rod (22) is rotatably assorted trimmer (83) is installed between the face in said.
7. the linkage of mold closing mechanism according to claim 1; It is characterized in that: every group of connecting rod of said linkage all comprises a plurality of back links and a plurality of front rod; Back link both sides in being symmetricly set between the back link, back link equates with the number of front rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220272964 CN202592694U (en) | 2012-06-11 | 2012-06-11 | Connecting rod mechanism of die closing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220272964 CN202592694U (en) | 2012-06-11 | 2012-06-11 | Connecting rod mechanism of die closing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202592694U true CN202592694U (en) | 2012-12-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220272964 Expired - Fee Related CN202592694U (en) | 2012-06-11 | 2012-06-11 | Connecting rod mechanism of die closing device |
Country Status (1)
| Country | Link |
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| CN (1) | CN202592694U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102729435A (en) * | 2012-06-11 | 2012-10-17 | 无锡天惠塑机有限公司 | Connection rod mechanism of mold clamping apparatus |
| CN104029359A (en) * | 2014-06-03 | 2014-09-10 | 鄂州格林机械有限公司 | Single-cylinder parallel mold closing mechanism |
-
2012
- 2012-06-11 CN CN 201220272964 patent/CN202592694U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102729435A (en) * | 2012-06-11 | 2012-10-17 | 无锡天惠塑机有限公司 | Connection rod mechanism of mold clamping apparatus |
| CN104029359A (en) * | 2014-06-03 | 2014-09-10 | 鄂州格林机械有限公司 | Single-cylinder parallel mold closing mechanism |
| CN104029359B (en) * | 2014-06-03 | 2016-05-11 | 鄂州格林机械有限公司 | The parallel clamping of a kind of single cylinder |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121212 Termination date: 20130611 |