CN102114697B - Die locking mechanism - Google Patents
Die locking mechanism Download PDFInfo
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- CN102114697B CN102114697B CN 201110020138 CN201110020138A CN102114697B CN 102114697 B CN102114697 B CN 102114697B CN 201110020138 CN201110020138 CN 201110020138 CN 201110020138 A CN201110020138 A CN 201110020138A CN 102114697 B CN102114697 B CN 102114697B
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- guide rail
- pivoted arm
- crossbeam
- shifting formwork
- die
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Abstract
The invention discloses a die locking mechanism, wherein, a die moving guide rail pair is utilized to lead two die locking device to move in the opposite directions; a die locking guide rail pair is utilized to close pivoted arm connecting seats; a die locking oil cylinder is taken as driving power and pivoted arms are used for transmission so as to achieve the closure or separation of the two pivoted arm connecting seats, and the two pivoted arm connecting seats can move synchronously with the help of a synchronous gear device; in addition, an anticollision rack and an anticollision block are additionally arranged on the die locking mechanism, so that the safety can be ensured when the die locking mechanism operates. Due to the effects of the mechanical principle and the guide rail pair, the die locking mechanism ensures that the stress central point is not changed when templates on the pivoted arm connecting seats act on a die, the templates are not easy to be deformed even if a large-scale die is closed, and the guide rail pair and a corresponding slide block are less vulnerable to abrasion; the pivoted arm-type closing is adopted, so that the closing force of the pivoted arm connecting seats can begreatly increased further, the die locking force is enough, the two pivoted arm connecting seats can move synchronously and can be closed synchronously with the help of the synchronous gear device at the same time, and the product quality can be enhanced greatly.
Description
Technical field
The present invention relates to a kind of clamping mechanism, relate in particular to the clamping mechanism that a kind of mode with pivoted arm realizes clamp force.
Background technology
At present, the large size plastic jetting-moulding device that injection machine manufacturer in countries in the world produces, the version of its mode locking unit can be summarized as three kinds of forms substantially: (1) mechanical lock mode structure; (2) two plates four oil cylinder booster-type mould-locking structures; (3) two plate list oil cylinder direct pressure type mould-locking structures.
The mould-locking structure of three kinds of forms; pluses and minuses are respectively arranged; now briefly be compared as follows: 1. the mechanical lock mold mechanism is by forming advantage by locked mode plate, locked mode toggle, cylinder drive etc.: mechanism is reliable, movement velocity is fast, cost is low, hydraulic system is simple, low energy consumption etc.Shortcoming is: the clamp force of setting during easily by the variations in temperature of system motion heating and environment the pull bar elongation cause clamp force loss, and strong mechanical friction arranged under heavy load, cause the intrinsic running precision of machine after the use of a period of time, just be subject to larger impact, relative maintenance cost is also higher.
2. two plates, four oil cylinder booster-type mould-locking structures, advantage: no matter be to adopt rotary be connected or cohesion style connects between brother woods post and the high-voltage lock mould oil cylinder piston (A), under die opening state, brother woods post all can break away from solid plate.Therefore, can realize the operation of side progressive die.Virtually having reduced the requirement to factory building height, is a very desirable advantage.(B) mould structure is simple, so comparatively speaking, the overall weight of locked mode section cover is low weight, and transportation, lifting are conveniently.(C) demoulding ejecting mechanism is installed on the back side of moving platen, and the space is unrestricted, installs, dismantles, keeps in repair all more convenient.(D) structure is relatively simple, so cost is also relatively cheap.Shortcoming: (A) profile of four oil cylinders is because being subject to platen size, and can not do very greatly, and can effectively produce the endless belt area that is only limited to four oil cylinder pistons of clamp force.For the effective area of single cylinder structure, this effective area is large not.In order to reach specified clamp force, have only high-voltage lock mould pressure is pressurized to 280-320kg/cm2, even 350kg/cm2.This just has quite harsh requirement to the quality of form and position tolerance, surface smoothness, total quality and the seal of cylinder body.And the level of current Chinese manufacturing generally is difficult to reach this requirement.Two plates, four oil cylinder booster-type locked mode large size plastic jetting-moulding devices are produced in the native land, ubiquity high pressure Leakage, and can't thoroughly solve.This is a large deadly defect of this structure.(B) for adopting the four cylinder mould-locking structures that are rotatably connected between brother woods post and the solid plate high-voltage lock mould oil cylinder, be buckled with the effect area and reduce by half owing to bear the spiral shell of clamp force, pressure is too large, causes easily the spiral shell button surrender even brother woods post head fracture of breaking.This case is of common occurrence.(C) change the molar space, must realize by mould adjusting mechanism.This is a weak point for the hydraulic pressure locking injection machine.
3. two plate list oil cylinder direct pressure type mould-locking structures, advantage: (A) moving platen is not by brother woods post guiding, the depth of parallelism between head, two code die faces of two plates can arbitrarily be adjusted within the specific limits, therefore is adjustable to the degree that is bordering on absolute parallel, is conducive to precision moding.(B) the unlocking mold stroke is not subjected to structural restriction, can according to technologic needs, strengthen its unlocking mold stroke.This is the advantage of hydraulic pressure locking injection machine maximum, also is the topmost weakness of In A Diecasting Equipment machinery locking injection machine.(C) do not need mould adjusting mechanism, by means of the sensing technology of precision, in whole molar spatial dimension, can locate voluntarily fast, the nut obvolvent, play high-voltage lock mould.Everything is continuous, accurate, brisk, promptly carry out.Shortcoming: (A) because its moving platen is to adopt composite structure, so comparatively speaking, the overall weight of locked mode section cover is heavier, and it is not too convenient to transport, lift.(B) be fixedly connected with because adopting between four Gen Gelin posts and the solid plate, thus can not allow one or more brother woods posts break away from solid plates, and realize the operation of side progressive die.(C) complicated because of clamping mechanism, manufacture process requirement is high, so cost is higher.
For above-mentioned existing situation, although the shortcoming of existing mechanical lock mold mechanism can overcome with all-hydraulic clamping mechanism, the advantage of existing mechanical lock mold mechanism is again that all-hydraulic clamping mechanism is unapproachable.The applicant endeavours the research and development to the clamping mechanism of existing situation always, has improved out a kind of clamping mechanism that can overcome existing machinery clamping mechanism shortcoming finally.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, a kind of clamping mechanism safe, convenient, that loss is little, energy consumption is low, sealed power is strong that uses is provided.
The technical scheme that the present invention solves prior art is: a kind of clamping mechanism, comprise a frame, and underframe is installed on the frame, the underframe top cross is provided with distichous shifting formwork guide rail and pays, and two ends that the shifting formwork guide rail is paid respectively are provided with the clamping apparatus of a same structure; Described clamping apparatus comprises with the shifting formwork guide rail pays a vertical crossbeam, the bottom of crossbeam is provided with the shifting formwork slide block and pays with the shifting formwork guide rail and cooperate, crossbeam is provided with to be paid two vertical row formula locked mode guide rails with the shifting formwork guide rail and pays, the locked mode guide rail is paid the pivoted arm that is provided with a pair of symmetry Connection Block, the bottom of pivoted arm Connection Block is provided with the locked mode guide rail and pays the locked mode that cooperates slide block, one side of two hammerlock Connection Blocks be equipped with mutually towards template, be provided with the hammerlock fishplate bar with the hammerlock Connection Block opposite side of template-setup opposite direction; The shifting formwork guide rail is paid the cross sectional shape of paying with the locked mode guide rail and is trapezoidal, pays the both sides of paying with every row locked mode guide rail in every row shifting formwork guide rail and all has groove.The shifting formwork guide rail is paid and paid the employing cross sectional shape with the locked mode guide rail is trapezoidal structure, the guide rail of this structure is paid only has an one-movement-freedom-degree, can bear larger down load and perpendicular to the load of trapezoidal side, adjustment capability to the installation base surface error is larger, can not produce larger differential friction, the guide rail of this class formation is paid effective expansion phenomenon of having controlled slide block.And existing guide rail is paid general employing cylindrical slideway, though cylindrical slideway is easily manufactured and simple in structure, but can not adjust and compensate for clearance after the wearing and tearing, variation to temperature is relatively more responsive, error ratio to foul and guide pass is responsive, higher for the contact-making surface required precision of sliding, and can not bear large moment of torsion.Do not adopt cylindrical slideway to pay so the guide rail of clamping mechanism of the present invention is paid, but adopt the more outstanding trapezoid cross section guide rail of advantage to pay.
Each is hinged with symmetrical pivoted arm with middle pivoted arm mandrel two ends of aforementioned crossbeam, and pivoted arm forms integral structure by upper hinge arm and lower hinge arm, and the angle between the upper and lower pivoted arm is an obtuse angle; Be hinged with a Mode-locking oil cylinder with the lower hinge arm mandrel between the end of two lower hinge arms, the end of two upper hinge arms is all with the hinged hammerlock fishplate bar of upper hinge arm mandrel; Also be provided with synchronously sealed synchromesh gear device of control two hammerlock Connection Blocks on the crossbeam; Also be provided with the template support arm on the template, also be provided with the whole clamping apparatus of control on the underframe and pay the mould shifting oil cylinder of upper movement in the shifting formwork guide rail; Aforesaid mould shifting oil cylinder is provided with and prevents the mobile in opposite directions anticollison block that produces collision of clamping apparatus, and crossbeam is provided with the bumper frame that prevents that clamping apparatus and underframe end from bumping.The anticollison block that is arranged on the two independent mould shifting oil cylinders oppositely arranges also separately towards another clamping apparatus, when two mould shifting oil cylinders move in opposite directions, anticollison block at first can continue mobile in opposite directions with corresponding clamping apparatus contact and prevention clamping apparatus, two independently anticollison block cooperatively interact, just can guarantee that two clamping apparatus can not bump, and two clamping apparatus are stressed steadily, make two clamping apparatus can not produce skew, the security that has also greatly improved mechanism operation simultaneously; It prevents that the effect of frame setting is basic consistent with anticollison block with principle.
The telescopic traction effect of clamping apparatus by mould shifting oil cylinder makes two hammerlocks be articulated on the crossbeam can be in opposite directions or reverse rotation, drive sealed or reverse mobile realization of the mobile in opposite directions realization of two hammerlock Connection Blocks and separate, also the driving by mould shifting oil cylinder realizes the slip that two clamping apparatus are paid at the shifting formwork guide rail.All pay as guiding with line slideway the bottom of the bottom of crossbeam and hammerlock Connection Block, has that guiding accuracy height, guiding are reliable, stable, good rigidly, motion is light steadily, wearability is good, influence of temperature change is little, processability of product structure is good, the life-span is long, lubricate the advantages such as easy; Guaranteed the depth of parallelism and the perpendicularity of crossbeam and hammerlock Connection Block, line slideway is paid the precision height, make clamping apparatus motion steadily, closing precision is high, and the bearing capacity that line slideway is paid is large, whole mechanism is to the strong adaptability of mould, integral rigidity is good.The effect that this clamping mechanism is paid by mechanics principle and guide rail guarantees that the template action on the hammerlock Connection Block is constant in center of effort's point that mould is, even want sealed large-scale mould, template is not yielding yet, and guide rail is paid with respective slide also not easy to wear; And adopt the sealed sealed power that more can greatly strengthen the locked mode Connection Block of arm reaming type, and clamp force is enough, and auxiliary with the synchromesh gear device simultaneously realized being synchronized with the movement of two locked mode Connection Blocks, sealed synchronously, greatly guaranteed the quality of product; Its overall structure is steady, conveniently moving.
As the further design to the aforementioned techniques scheme: aforesaid synchromesh gear device comprises the in opposite directions tooth bar that is arranged at respectively two hammerlock Connection Blocks bottom, be arranged in the crossbeam and with the engagement of two tooth bars and make the synchronization-moving in opposite directions travelling gear of two hammerlock Connection Blocks.Travelling gear is arranged in the crossbeam, can not hinder the sealed of two hammerlock Connection Blocks, utilizes a gear synchronous to drive two in opposite directions rack synchronous engagements, the locking phase of realizing two hammerlock Connection Blocks to or counter motion.
Clamping mechanism of the present invention is reliable, movement velocity is fast, cost is low, oil hydraulic system is simple, energy consumption is low, the effect that this clamping mechanism is paid by mechanics principle and guide rail, guarantee that the center of effort point of template action when mould on the hammerlock Connection Block is constant, even want sealed large-scale mould, template is not yielding yet, and guide rail is paid with respective slide also not easy to wear; And adopt the sealed power of the sealed locked mode Connection Block that more can increase of arm reaming type, and clamp force is enough, and auxiliary with the synchromesh gear device simultaneously realized being synchronized with the movement of two locked mode Connection Blocks, sealed synchronously, greatly guaranteed the quality of product; Its overall structure is steady, conveniently moving.
Description of drawings
Fig. 1 is the structural representation of the clamping mechanism of embodiments of the invention 1;
Fig. 2 is the left view of Fig. 1;
Fig. 3 is the top view of Fig. 1.
The specific embodiment
Provide a most preferred embodiment of the present invention below in conjunction with accompanying drawing.
A kind of clamping mechanism such as Fig. 1, Fig. 2, shown in Figure 3, comprises a frame 1, and underframe 15 is installed on the frame, and the underframe top cross is provided with distichous shifting formwork guide rail and pays 14, and two ends that the shifting formwork guide rail is paid respectively are provided with the clamping apparatus of a same structure; Clamping apparatus comprises with the shifting formwork guide rail pays a vertical crossbeam 13, the bottom of crossbeam is provided with shifting formwork slide block 20 and pays with the shifting formwork guide rail and cooperate, crossbeam is provided with to be paid two vertical row formula locked mode guide rails with the shifting formwork guide rail and pays 11, the locked mode guide rail is paid the pivoted arm Connection Block 8 that is provided with a pair of symmetry, the bottom of pivoted arm Connection Block is provided with the locked mode guide rail and pays the locked mode slide block 21 that cooperates, one side of two hammerlock Connection Blocks be equipped with mutually towards template 9, be provided with hammerlock fishplate bar 7 with the hammerlock Connection Block opposite side of template-setup opposite direction; The shifting formwork guide rail is paid the cross sectional shape of paying with the locked mode guide rail and is trapezoidal, pays the both sides of paying with every row locked mode guide rail in every row shifting formwork guide rail and all has groove; Each is hinged with symmetrical pivoted arm 10 with middle pivoted arm mandrel 2 two ends of crossbeam, and pivoted arm forms integral structure by upper hinge arm and lower hinge arm, and the angle between the upper and lower pivoted arm is an obtuse angle; Be hinged with the end of a Mode-locking oil cylinder 16, two upper hinge arms all with upper hinge arm mandrel 6 hinged hammerlock fishplate bars with lower hinge arm mandrel 4 between the end of two lower hinge arms; Also be provided with synchronously sealed synchromesh gear device 17 of control two hammerlock Connection Blocks on the crossbeam, the synchromesh gear device comprises the in opposite directions tooth bar 22 that is arranged at respectively two hammerlock Connection Blocks bottom, be arranged in the crossbeam and with the engagement of two tooth bars and make the synchronization-moving in opposite directions travelling gear 23 of two hammerlock Connection Blocks.Also be provided with template support arm 5 on the template, also be provided with the whole clamping apparatus of control on the underframe and pay the mould shifting oil cylinder 18 of upper movement in the shifting formwork guide rail, mould shifting oil cylinder is provided with and prevents the mobile in opposite directions anticollison block 19 that produces collision of clamping apparatus, and crossbeam is provided with the bumper frame 12 that prevents that clamping apparatus and underframe end from bumping.The telescopic traction effect of clamping apparatus by mould shifting oil cylinder makes two hammerlocks be articulated on the crossbeam can be in opposite directions or reverse rotation, drive sealed or reverse mobile realization of the mobile in opposite directions realization of two hammerlock Connection Blocks and separate, also the driving by mould shifting oil cylinder realizes the slip that two clamping apparatus are paid at the shifting formwork guide rail.
Except the embodiment of above structure, clamping mechanism structural similarity every and of the present invention or similar clamping mechanism fall within protection scope of the present invention too.
Claims (2)
1. clamping mechanism, comprise a frame (1), underframe (15) is installed on the frame, it is characterized in that: described underframe top cross is provided with distichous shifting formwork guide rail and pays (14), and two ends that the shifting formwork guide rail is paid respectively are provided with the clamping apparatus of a same structure; Described clamping apparatus comprises with the shifting formwork guide rail pays a vertical crossbeam (13), the bottom of crossbeam is provided with shifting formwork slide block (20) and pays with the shifting formwork guide rail and cooperate, crossbeam is provided with to be paid two vertical row formula locked mode guide rails with the shifting formwork guide rail and pays (11), the locked mode guide rail is paid the pivoted arm Connection Block that is provided with a pair of symmetry (8), the bottom of pivoted arm Connection Block is provided with the locked mode guide rail and pays the locked mode slide block that cooperates (21), one side of two pivoted arm Connection Blocks be equipped with mutually towards template (9), be provided with hammerlock fishplate bar (7) with the pivoted arm Connection Block opposite side of template-setup opposite direction; Described shifting formwork guide rail is paid the cross sectional shape of paying with the locked mode guide rail and is trapezoidal, pays the both sides of paying with every row locked mode guide rail in every row shifting formwork guide rail and all has groove; Each is hinged with symmetrical pivoted arm (10) with middle pivoted arm mandrel (2) two ends of crossbeam, and pivoted arm forms integral structure by upper hinge arm and lower hinge arm, and the angle between the upper and lower pivoted arm is an obtuse angle; Be hinged with a Mode-locking oil cylinder (16) with lower hinge arm mandrel (4) between the end of two lower hinge arms, the end of two upper hinge arms is all with the hinged hammerlock fishplate bar of upper hinge arm mandrel (6); Also be provided with synchronously sealed synchromesh gear device (17) of control two pivoted arm Connection Blocks on the crossbeam; Also be provided with template support arm (5) on the template, also be provided with the whole clamping apparatus of control on the underframe and pay the mould shifting oil cylinder (18) of upper movement in the shifting formwork guide rail; Mould shifting oil cylinder is provided with and prevents the mobile in opposite directions anticollison block (19) that produces collision of clamping apparatus, and crossbeam is provided with the bumper frame (12) that prevents clamping apparatus and underframe end and bump; The telescopic traction effect of clamping apparatus by mould shifting oil cylinder makes two hammerlocks be articulated on the crossbeam can be in opposite directions or reverse rotation, drive sealed or reverse mobile realization of the mobile in opposite directions realization of two pivoted arm Connection Blocks and separate, also the driving by mould shifting oil cylinder realizes the slip that two clamping apparatus are paid at the shifting formwork guide rail.
2. clamping mechanism according to claim 1 is characterized in that: described synchromesh gear device comprises the in opposite directions tooth bar (22) that is arranged at respectively two pivoted arm Connection Blocks bottom, be arranged in the crossbeam and with the engagement of two tooth bars and make the synchronization-moving in opposite directions travelling gears of two pivoted arm Connection Blocks (23).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110020138 CN102114697B (en) | 2011-01-18 | 2011-01-18 | Die locking mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110020138 CN102114697B (en) | 2011-01-18 | 2011-01-18 | Die locking mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102114697A CN102114697A (en) | 2011-07-06 |
| CN102114697B true CN102114697B (en) | 2013-02-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110020138 Active CN102114697B (en) | 2011-01-18 | 2011-01-18 | Die locking mechanism |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102357948A (en) * | 2011-08-25 | 2012-02-22 | 苏州同大机械有限公司 | Elbow clasping type die opening and closing mechanism |
| CN105057635B (en) * | 2015-09-25 | 2017-03-29 | 重庆盛镁镁业有限公司 | Vertical turnable mould verifying attachment |
| CN105115778B (en) * | 2015-09-25 | 2017-09-19 | 重庆盛镁镁业有限公司 | Fluid pressure type mould verifying attachment |
| CN106827430B (en) * | 2017-03-23 | 2023-06-16 | 田跃宏 | Balanced pull rod-free die assembly mechanism |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6155811A (en) * | 1999-09-08 | 2000-12-05 | Husky Injection Molding Systems Ltd. | Stack mold carrier mounted on linear bearings |
| EP1356914A1 (en) * | 2001-02-02 | 2003-10-29 | Mitsubishi Heavy Industries, Ltd. | Electric closing gear |
| CN101229674A (en) * | 2007-01-25 | 2008-07-30 | 恩格尔奥地利有限公司 | Hinge mechanism for a locking unit of an injection moulding machine |
| CN101811353A (en) * | 2009-02-25 | 2010-08-25 | 鸿富锦精密工业（深圳）有限公司 | Moving mould plate and injection molding device using same |
-
2011
- 2011-01-18 CN CN 201110020138 patent/CN102114697B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6155811A (en) * | 1999-09-08 | 2000-12-05 | Husky Injection Molding Systems Ltd. | Stack mold carrier mounted on linear bearings |
| EP1356914A1 (en) * | 2001-02-02 | 2003-10-29 | Mitsubishi Heavy Industries, Ltd. | Electric closing gear |
| CN101229674A (en) * | 2007-01-25 | 2008-07-30 | 恩格尔奥地利有限公司 | Hinge mechanism for a locking unit of an injection moulding machine |
| CN101811353A (en) * | 2009-02-25 | 2010-08-25 | 鸿富锦精密工业（深圳）有限公司 | Moving mould plate and injection molding device using same |
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| Publication number | Publication date |
|---|---|
| CN102114697A (en) | 2011-07-06 |
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