CN103286927B - Mold-locking device of toggle rod type injection molding machine - Google Patents
Mold-locking device of toggle rod type injection molding machine Download PDFInfo
- Publication number
- CN103286927B CN103286927B CN201210052762.7A CN201210052762A CN103286927B CN 103286927 B CN103286927 B CN 103286927B CN 201210052762 A CN201210052762 A CN 201210052762A CN 103286927 B CN103286927 B CN 103286927B
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- crosshead
- engaging lug
- mold
- hinge
- mold plate
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Abstract
The invention relates to a crosshead structure of a mold-locking device of a toggle rod type injection molding machine. The mold-locking device of the toggle rod type injection molding machine is formed by matching a novel crosshead with a mold-locking oil cylinder, a rear mold plate, a hook hinge, a long hinge, a small hinge, a movable mold plate, and a pull rod. The crosshead is fixed on a piston rod of the mold-locking oil cylinder and the pull rod; the hook hinge and the long hinge are respectively connected with suspension arms on the rear mold plate and the movable mold plate; the crosshead is formed by connecting the small hinge and the hook hinge. The crosshead structure is simple; the manufacturability and materials of the rear mold plate can be saved; by adopting reinforcing ribs, the rigidity and the strength of the crosshead structure are improved; meanwhile, the breaking of the rear mold plate near an A-shaped frame due to non-balanced stress on the rear mold plate caused by the conventional crosshead structure form during mold opening and closing is avoided. The mold-locking device is convenient to process and install, and steadily moves.
Description
Technical field
The present invention relates to a kind of clamping apparatus of toggle injection machine, especially a kind of cross head design of clamping apparatus of toggle injection machine.
Background technology
The clamping apparatus of existing toggle injection machine uses two groups of elbow-bar mechanism, and connect by crosshead between elbow-bar mechanism, crosshead is driven by Mode-locking oil cylinder, and slide on two guide posts, in the course of the work, in order to avoid stuck, elbow-bar mechanism and crosshead must high accuracy processing and assemblings.Because masterpiece is used for crosshead by the Mode-locking oil cylinder of above-mentioned conventional apparatus, crosshead is delivered on moving platen after power being amplified by toggle link, so in motion process, especially when die sinking extreme position or front rod are close to upright position, wearing and tearing are very serious, and mechanical performance can be caused to decline, simultaneously because crosshead movement is not steady, the radial load of Mode-locking oil cylinder effect acts on rear pattern plate by two cross-head guide bars, causes rear pattern plate " A " cabinet frame place to be ruptured.
Known Chinese patent ZL200520132386.8 " a kind of clamping apparatus of special injection molding ", improve folding by optimization machine strand parameter and imitate rate, but still there is serious wear, the bumpy motion of traditional toggle injection machine, rear pattern plate " A " cabinet frame place phenomenon of rupture.
Summary of the invention
For the deficiency that prior art exists, the object of the present invention is to provide the clamping apparatus of the simple toggle injection machine of a kind of structure.
For achieving the above object, the present invention is by the following technical solutions:
A kind of clamping apparatus of toggle injection machine, comprise a rear pattern plate, a moving platen, a front template, four pull bars, a Mode-locking oil cylinder, two elbow-bar mechanism and crossheads, crosshead is fixed on the piston rod of Mode-locking oil cylinder, crosshead comprises the main body connected with piston rod, it is characterized in that: main body is provided with four engaging lugs extended to pull bar, each engaging lug offers a pilot hole that can pass for corresponding pull bar, crosshead is enclosed within four pull bars slippingly by these four pilot holes.
Technique scheme can also be further improved by following technical measures:
Hank joint chair between first engaging lug and second engaging lug, that another links seat between 3rd engaging lug and the 4th engaging lug, have reinforcement between second engaging lug stage casing and the 3rd engaging lug stage casing, between the 4th engaging lug stage casing and the first engaging lug stage casing, have reinforcement.
Axle sleeve is provided with between pilot hole and pull bar.
Cross head design of the present invention adopts reinforcement to improve its rigidity and intensity, four pilot holes are fixed on pull bar (being also guide pillar or brother woods post), pull bar plays cross-head guide and bears radial load effect, its motion is more steady, does not thus need " A " cabinet frame and the guide post of traditional locks die device rear pattern plate.Compared with the clamping apparatus of traditional toggle injection machine, the structure optimization of locked mode rear pattern plate, stable movement, causes its " A " cabinet frame phenomenon of rupture when solving locked mode.Although the weight of crosshead need have increase simultaneously, " A " cabinet frame of tailgate is cancelled, and overall weight reduces, the manufacturability of tailgate, and the parts such as reliability gets a promotion, two crosshead guide bars are cancelled, and manufacturing cost is also reduced.
Accompanying drawing explanation
Fig. 1 is front view of the present invention;
Fig. 2 is the stereogram of crosshead and dual-elbow-bar mechanism;
Fig. 3 is the stereogram of crosshead;
Fig. 4 is stereogram of the present invention.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the invention will be further described.
As shown in the figure, a kind of clamping apparatus of toggle injection machine, comprise a rear pattern plate 2, one moving platen 14, one front template 17, four pull bars 15, one Mode-locking oil cylinder 1, two elbow-bar mechanism and a crosshead 7, crosshead 7 is fixed on the piston rod 6 of Mode-locking oil cylinder 1, crosshead 7 comprises the main body 7-5 connected with piston rod 7, main body 7-1 is provided with four engaging lug 7-1 extended to pull bar, 7-2, 7-3, 7-4, each engaging lug offers a pilot hole 7-6 that can pass for corresponding pull bar 15, crosshead 7 is enclosed within four pull bars 15 slippingly by these four pilot hole 7-6.
Hank joint chair 7-7 between first engaging lug 7-1 and second engaging lug 7-2, that another links seat 7-8 between 3rd engaging lug 7-3 and a 4th engaging lug 7-4, have reinforcement 18 between second engaging lug 7-2 stage casing and the 3rd engaging lug 7-3 stage casing, between the 4th engaging lug 7-4 stage casing and the first engaging lug 7-1 stage casing, have reinforcement 18.Two reinforcements 18 are symmetrical.Reinforcement, engaging lug, hinge joint seat and main body are an entirety.
Elbow-bar mechanism comprises rap 8, hook strand 5 and long strand 11.Two hinge joint seats of crosshead 7 twist 5 respectively by rap 8 and hook and are connected.
Long strand 11 has the connecting rod of through hole for two ends, and hook strand 5 has the three through hole connecting rods be triangularly arranged, and wherein one jiao is obtuse angle, and other two jiaos is low-angle acute angle.There is through hole at little hinge 8 two ends, and one end connects crosshead 7 by bearing pin 9, and the other end is by pinned connection hook strand 5.Long strand 11 is twisted 5 with hook and is passed through pinned connection.Cantilever 12 is installed on moving platen 14, is linked by bearing pin 12 and long strand 11 simultaneously.Cantilever 3 is installed on rear pattern plate 2, twists 5 simultaneously link by bearing pin 4 and hook.Above-mentioned each part becomes five fulcrum Double crank link mechanisms by being with the pinned connection of oil groove.
Mode-locking oil cylinder 1 is arranged on rear pattern plate 2 by screw, and its piston rod 6 front end is connected with crosshead 7.
Rear pattern plate 2, moving platen 14, front template 17 are connected into one by four pull bars 15, and moving platen 14 can move on pull bar 15.
During die sinking, Mode-locking oil cylinder 1 drives crosshead 7 by piston rod 6, its four pilot holes lead through pull bar 15, rap 6 makes long strand 11 rotate clockwise along bearing pin 4, and moves down, and drives long strand 11 to draw in downwards by bearing pin 12, thus pull moving platen 14 to be moved to the left, make mould, if mobile is round about matched moulds, with above-mentioned.
Patent of the present invention is compared with prior art: cross head design adopts reinforcement to improve its rigidity and intensity, four pilot holes are fixed on guide pillar, guide pillar plays cross-head guide and bears radial load effect, its motion is more steady, does not thus need " A " cabinet frame and the guide post of traditional locks die device rear pattern plate.The structure optimization of locked mode rear pattern plate, stable movement, its " A " cabinet frame phenomenon of rupture is caused when solving locked mode, although the weight of crosshead need have increase simultaneously, " A " cabinet frame of tailgate is cancelled, and overall weight reduces, the manufacturability of tailgate, the parts such as reliability gets a promotion, two crosshead guide bars are cancelled, and manufacturing cost is also reduced.
Above act is executed example and is only used for conveniently illustrating patent of the present invention, not does any pro forma restriction to patent of the present invention, and every equivalent transformation of making according to the design concept in the present invention or modification, all should think and fall into protection scope of the present invention.
Claims (3)
1. the clamping apparatus of a toggle injection machine, comprise a rear pattern plate, a moving platen, a front template, four pull bars, a Mode-locking oil cylinder, two elbow-bar mechanism and crossheads, crosshead is fixed on the piston rod of Mode-locking oil cylinder, crosshead comprises the main body connected with piston rod, it is characterized in that: main body is provided with four engaging lugs extended to pull bar, each engaging lug offers a pilot hole that can pass for corresponding pull bar, crosshead is enclosed within four pull bars slippingly by these four pilot holes.
2. the clamping apparatus of toggle injection machine according to claim 1, it is characterized in that: be hank joint chair between first engaging lug and second engaging lug, that another links seat between 3rd engaging lug and the 4th engaging lug, have reinforcement between second engaging lug stage casing and the 3rd engaging lug stage casing, between the 4th engaging lug stage casing and the first engaging lug stage casing, have reinforcement.
3. the clamping apparatus of toggle injection machine according to claim 1 and 2, is characterized in that: be provided with axle sleeve between pilot hole and pull bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210052762.7A CN103286927B (en) | 2012-03-02 | 2012-03-02 | Mold-locking device of toggle rod type injection molding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210052762.7A CN103286927B (en) | 2012-03-02 | 2012-03-02 | Mold-locking device of toggle rod type injection molding machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103286927A CN103286927A (en) | 2013-09-11 |
| CN103286927B true CN103286927B (en) | 2015-07-15 |
Family
ID=49088705
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210052762.7A Expired - Fee Related CN103286927B (en) | 2012-03-02 | 2012-03-02 | Mold-locking device of toggle rod type injection molding machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103286927B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106738813A (en) * | 2016-12-21 | 2017-05-31 | 宁波鑫盛达机械有限公司 | A kind of double-toggle crank positive/negative-pressure thermoforming machine |
| CN106915048A (en) * | 2017-03-15 | 2017-07-04 | 周飞 | Link-type Clamping Device of Injection Moulding Machine |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4566522A (en) * | 1980-05-13 | 1986-01-28 | Oskar Frech Gmbh And Co. | Hot chamber die casting machine |
| JPS63286313A (en) * | 1987-05-19 | 1988-11-24 | Japan Steel Works Ltd:The | Mold clamping force setting device of toggle type injection molding machine |
| CN201832981U (en) * | 2010-11-02 | 2011-05-18 | 宁波力劲科技有限公司 | Mold closing device of mold casting machine |
-
2012
- 2012-03-02 CN CN201210052762.7A patent/CN103286927B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4566522A (en) * | 1980-05-13 | 1986-01-28 | Oskar Frech Gmbh And Co. | Hot chamber die casting machine |
| JPS63286313A (en) * | 1987-05-19 | 1988-11-24 | Japan Steel Works Ltd:The | Mold clamping force setting device of toggle type injection molding machine |
| CN201832981U (en) * | 2010-11-02 | 2011-05-18 | 宁波力劲科技有限公司 | Mold closing device of mold casting machine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103286927A (en) | 2013-09-11 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB03 | Change of inventor or designer information |
Inventor after: Wang Quan Inventor after: Yan Yan Inventor after: Jin Gang Inventor before: Wang Quan Inventor before: Yan Yan |
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| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: WANG QUAN YAN YAN TO: WANG QUAN YAN YAN JIN GANG |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150715 |