CN103286928A - Clamping mechanism for precision injection molding machine - Google Patents
Clamping mechanism for precision injection molding machine Download PDFInfo
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- CN103286928A CN103286928A CN2012101605197A CN201210160519A CN103286928A CN 103286928 A CN103286928 A CN 103286928A CN 2012101605197 A CN2012101605197 A CN 2012101605197A CN 201210160519 A CN201210160519 A CN 201210160519A CN 103286928 A CN103286928 A CN 103286928A
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- rear pattern
- pattern plate
- moving platen
- gripper shoe
- guide pillar
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- Injection Moulding Of Plastics Or The Like (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention relates to a clamping mechanism for a precision injection molding machine. The clamping mechanism comprises a structure frame composed of a fixed die plate, a movable die plate, a rear die plate and a guide column, a movable die plate fast moving mechanism and a clamping cylinder structure; the section of the guide column on the structure frame is rectangular, four corner parts of the movable die plate are provided with rollers on the upper column surface, the lower column surface and the inner side of the guide column; the movable die plate fast moving mechanism is composed of a motor reduction gear, a pair of engaged gears and rack and a guide wheel; the clamping cylinder structure is composed of four cylinders, a clamping support plate and a transmission mechanism, and the rear die plate has a through hole through which a cylinder piston rod is capable of passing. The clamping mechanism provided by the invention has the advantages that the friction between the movable die plate and the guide column is changed as the rolling friction from the sliding friction, the fit clearance is adjustable, the movement precision is improved, the movement resistance is decreased, and the energy consumption is reduced; through the rotation of the clamping support plate, the length of the guide column required for die closing is greatly shortened through the support or discharging provided for the cylinder piston rod, the whole machine body is reduced, and the control is simplified.
Description
Technical field:
The present invention relates to a kind of moulding of plastic products, especially relate to a kind of precise injection machine clamping mechanism.
Background technology:
The clamping mechanism of injection machine needs the high speed shifting formwork to shorten molding cycle, also need simultaneously very big power clamping mold, for satisfying these requirements, the structure of traditional injection machine is roughly as follows, comprise: the structure frame of being formed by solid plate, moving platen, rear pattern plate, guide pillar and transmit the actuator cylinder of motion and coupling mechanism force; Guide pillar in the structure frame is located between solid plate and the rear pattern plate, moving platen is enclosed within can be along the guide pillar slippage on the guide pillar, the actuator cylinder cylinder body is fixed on rear pattern plate or the solid plate, the plunger of actuator cylinder or piston rod are connected with moving platen, by the action of actuator cylinder, drive moving platen folding mould, locked mode.The weak point of this structure is: the one,, the structure frame arranges unreasonable, the cross section of institute's employing guide pillar is cylindrical, friction between moving platen and guide pillar is sliding friction, the resistance of motion increases, parts are easy to wear, and the inequality wearing and tearing of four guide pillars and the structure that can't adjust further influence the precision of mould closure; Guide pillar and solid plate, rear pattern plate connect on the support that the rigid structure frame is fixed on injection machine, because guide pillar not only leads and also bears coupling mechanism force, the distortion that stressed back produces can't be compensated, and also influences the precision of model closure; The 2nd,, actuator cylinder is born the dual function of rapid traverse, clamping, existing fast motion, again slow motion is arranged, the pressurizing cylinder of having to increase separately, and the plunger of pressurizing cylinder or piston rod are also servo-actuated together when moving platen folding mould, whole system becomes very complicated like this, not only increases the difficulty of control aspect, and equipment component also increases, the fuel tank volume strengthens, exercise load increases, cause whole cost to rise, the energy consumption height, working efficiency is low.The bottleneck that above-mentioned 2 deficiency has become the restriction injection machine to further develop.
Summary of the invention:
The objective of the invention is to provide at the prior art weak point that a kind of injection machine structure rigidity of frame is good, stressed rationally, the dynamic model motion steadily, precise injection machine clamping mechanism with manufacturing cost cuts down the consumption of energy.
The objective of the invention is to realize by following measure: a kind of precise injection machine clamping mechanism, include the structure frame of being formed by solid plate, moving platen, rear pattern plate, guide pillar, guide pillar is located between solid plate and the rear pattern plate, moving platen is enclosed within can be along the guide pillar slippage on the guide pillar, it is characterized in that, also has moving platen fast moving mechanism, Mode-locking oil cylinder mechanism; Wherein:
The cross section of described structure frame guide pillar is rectangular, four bights of described moving platen on guide pillar/following cylinder, guide pillar medial surface be equipped with roller;
Described moving platen fast moving mechanism is made up of motor deceleration case, a pair of gear that is meshed and tooth bar, directive wheel, described motor deceleration case is installed in the rear pattern plate dorsal part, gear is installed on the reduction gearbox output shaft, tooth bar one end is fixed on the through hole that moving platen dorsal part, the other end pass rear pattern plate and is shelved on the gear, a side, guiding wheel and rack dorsal part that directive wheel is installed in rear pattern plate through hole inner chamber hole wall touch mutually, and described moving platen fast moving mechanism has two groups to be symmetricly set on structure frame both sides;
Described Mode-locking oil cylinder mechanism is by four oil cylinders, locked mode gripper shoe and transmission mechanism, rear pattern plate is provided with the through hole of fuel feeding cylinder piston rod break-through and forms, described locked mode gripper shoe is cross, described transmission mechanism is by the motor deceleration case, the a pair of sector that is meshed, power transmission shaft, position-sensing switch is formed, described four oil cylinders are that symmetrical centre is distributed on the moving platen dorsal part with the moving platen axial line, power transmission shaft is installed on the rear pattern plate by bearing, the locked mode gripper shoe be installed in power transmission shaft stretch out outward the rear pattern plate front side the axle on, a pair of sector is installed in another axle journal of power transmission shaft of rear pattern plate dorsal part respectively, on the motor deceleration case output shaft neck, described two position-sensing switches are installed on the position, the left and right sides of criss-cross arbitrary finger rotary motion trace of locked mode gripper shoe, described position-sensing switch right lateral position respectively refers to cover in fully the through hole of the fuel feeding cylinder piston rod break-through of rear pattern plate for locked mode gripper shoe criss-cross after rotating, and described position-sensing switch left lateral position is opened the through hole of the fuel feeding cylinder piston rod break-through of rear pattern plate fully for the criss-cross respectively finger of locked mode gripper shoe after rotating.
The locked mode gripper shoe is installed in power transmission shaft and stretches out the axle of rear pattern plate front side outward upward for to install by intermediate plate, described intermediate plate one side end face is directly installed on the axial end of power transmission shaft by screw, the circumference of its axial line certain radius of intermediate plate opposite side tip to face distance is provided with several blind holes, be provided with stage clip in the blind hole, locked mode gripper shoe dorsal part compression press spring is fixed on the intermediate plate, and locked mode gripper shoe and rear pattern plate end face are mutually across a certain distance.
The solid plate of described structure frame is fixed on the injection machine support, the rear pattern plate of structure frame is shelved on the rolling element of injection machine support, the fixing threaded hole of the rear pattern plate of structure frame and injection machine support is the strip hole, the direction in strip hole and structure frame guide pillar axial direction homophase.
Compared with prior art, the precise injection machine clamping mechanism that has adopted the present invention to propose, has following advantage: the guide pillar that 1) adopts the square-section, fit clearance between moving platen and the guide pillar is adjustable, can compensate, static state and the dynamic precision of folding mould and locked mode have greatly been improved, the depth of parallelism between moving platen and the solid plate obtains guaranteeing effectively reliably, is convenient to maintenance, long service life; 2) guide pillar is not only born the mobile guide of moving platen, is also born the clamp force load, the moving platen rolling bearing is disposed within the moving platen, compact conformation, friction between moving platen and the guide pillar changes rolling friction into by sliding friction, kinematic accuracy improves, and the resistance of motion reduces, and power consumption reduces, be beneficial to the high-speed cruising of injection machine, improved mechanical performance and the economic benefit of injection machine; 3) four Mode-locking oil cylinders guide pillar of being arranged symmetrically in the moving platen dorsal part to the moving platen centre-to-centre spacing between, intensity and rigidity requirement to moving platen have been reduced, power transmission is even, rotate by the locked mode gripper shoe, the length that the required guide pillar of matched moulds has been shortened in support or the clearance of oil cylinder piston bar greatly is provided, integral body dwindles, control is simultaneously simplified, the plunger of Mode-locking oil cylinder or piston rod are not taken exercises when moving platen folding mould moves, required oil mass volume is minimum, shorten the locked mode actuation time of boosting, be beneficial to the raising working efficiency, reduced cost and energy consumption.
Description of drawings:
Fig. 1 is the embodiment die sinking schematic diagram that the present invention proposes.
Fig. 2 is the schematic diagram of the moving matched moulds of Fig. 1 embodiment.
Fig. 3 is that Fig. 1 embodiment moving platen is installed the roller schematic diagram.
Fig. 4 is the lead to the hole site schematic diagram of Fig. 1 embodiment locked mode gripper shoe and the break-through of rear pattern plate fuel feeding cylinder piston rod.
Fig. 5 is Fig. 4 embodiment locked mode gripper shoe power transmission sketch.
The specific embodiment:
Below in conjunction with accompanying drawing the specific embodiment is elaborated: in Fig. 1～one embodiment of the present of invention figure shown in Figure 3, a kind of precise injection machine clamping mechanism, include: the structure frame of being formed by solid plate 3, moving platen 5, rear pattern plate 9, guide pillar 4, guide pillar 4 is located between solid plate 3 and the rear pattern plate 9, moving platen 5 is enclosed within can be along the guide pillar slippage on the guide pillar 4, also be provided with moving platen fast moving mechanism, Mode-locking oil cylinder mechanism; Wherein:
The cross section of described structure frame guide pillar 4 is rectangular, 5 four bights of described moving platen on guide pillar/following cylinder is provided with roller 11, guide pillar 4 medial surfaces are provided with roller 1; Because four bights of moving platen 5 are equipped with roller, it is mobile in the plane at its place to have limited moving platen 5, can only move in the direction perpendicular to this plane.The spacer thickness that has wearing and tearing the time can regulate the roller mount back when roller is adjusted the gap between roller and the guide pillar.Because the friction between moving platen and the guide pillar is rolling friction and can regulates gap between roller and guide pillar, so can guarantee the depth of parallelism between moving platen and the solid plate fully.The present invention has also taked following measure: the solid plate 3 of described structure frame is fixed on the injection machine support, the rear pattern plate 9 of structure frame is shelved on the rolling element 12 of injection machine support, the rear pattern plate 9 of structure frame is the strip hole, the direction in strip hole and structure frame guide pillar axial direction homophase with the fixing threaded hole 13 of injection machine support.Hold the strain that produces after the guide pillar tension by the gap between the strip hole, thereby avoid the distortion of structure frame, guarantee the depth of parallelism between moving platen and the solid plate.
Described moving platen fast moving mechanism is made up of motor deceleration case 20, a pair of gear that is meshed 10 and tooth bar 7, directive wheel 71, described motor deceleration case 20 is installed in rear pattern plate 9 dorsal parts, gear 10 is installed on reduction box 20 output shafts, tooth bar 7 one ends are fixed on the through hole that moving platen 5 dorsal parts, the other end pass rear pattern plate and are shelved on the gear 10, directive wheel 71 is installed in a side, directive wheel 71 of rear pattern plate through hole inner chamber hole wall and touches mutually with tooth bar 7 dorsal parts, and described moving platen fast moving mechanism has two groups to be symmetricly set on structure frame both sides.Adopting oil cylinder with traditional Injection Motor Template is that driving force is compared, this structure need not to be equipped with oil pump and the jumbo fuel tank of big flow, again because the friction between moving platen and guide pillar is rolling friction, required drive is minimum, appropriate structure frame is installed can be moved by the hand propelled moving platen, so simplified mechanism, reduced energy consumption, obtained beyond thought effect.
Fig. 4～Fig. 5 has provided the Mode-locking oil cylinder structural scheme of mechanism.Among the figure, described Mode-locking oil cylinder mechanism is by four oil cylinders 6, locked mode gripper shoe 8 and transmission mechanism, rear pattern plate 9 is provided with the through hole 91 of fuel feeding cylinder 6 piston rod break-through and forms, described locked mode gripper shoe 8 is cross, described transmission mechanism is by motor deceleration case 80, the a pair of sector that is meshed 81/82, power transmission shaft 83, position-sensing switch 84/85 is formed, described four oil cylinders 6 are that symmetrical centre is distributed on moving platen 5 dorsal parts with moving platen 5 axial lines, power transmission shaft 83 is installed on the rear pattern plate 9 by bearing, locked mode gripper shoe 8 is installed on the axle that stretches out rear pattern plate 9 front sides outside the power transmission shaft 83, a pair of sector 81/82 is installed in power transmission shaft 83 another axle journals of rear pattern plate dorsal part respectively, on motor deceleration case 80 output shaft necks, described two position-sensing switches 84/85 are installed in criss-cross one of locked mode gripper shoe 8 and refer on the position, the left and right sides of 88 rotary motion trace, described position-sensing switch 85 right lateral positions are the through hole 91 that the criss-cross respectively finger after locked mode gripper shoe 8 is rotated covers in the fuel feeding cylinder 6 piston rod break-through of rear pattern plate 9 fully, and described position-sensing switch 84 left lateral positions are that the criss-cross respectively finger after locked mode gripper shoe 8 is rotated is opened the through hole 91 of the fuel feeding cylinder 6 piston rod break-through of rear pattern plate 9 fully.For further improving the stressed situation of locked mode gripper shoe and transmission mechanism power transmission shaft, the present invention has also taked following measure: locked mode gripper shoe 8 is installed in the power transmission shaft 83 outer axles that stretch out the rear pattern plate front side and goes up to installing by intermediate plate 87, described intermediate plate 87 1 side end faces are directly installed on the axial end of power transmission shaft 83 by screw, the circumference of intermediate plate 87 its axial line certain radius of opposite side tip to face distance is provided with several blind holes, be provided with stage clip 86 in the blind hole, locked mode gripper shoe 8 dorsal part compression press springs 86 are fixed on the intermediate plate, and locked mode gripper shoe 8 and rear pattern plate 9 end faces are mutually across a certain distance.When the locked mode gripper shoe was born Mode-locking oil cylinder transmission power, the further compression press spring of locked mode gripper shoe, the described determining deviation of elimination were adjacent on the rear pattern plate end face, and power is passed on the rear pattern plate; Behind the Mode-locking oil cylinder constraint relief, the locked mode gripper shoe is separated with rear pattern plate and is resetted, and keeps certain spacing, alleviates the resistance that the locked mode gripper shoe is rotated.
This structure is work like this: moving platen is by starting the closed position that moving platen fast moving mechanism enters moving platen and solid plate fast, the transmission mechanism of locked mode gripper shoe starts subsequently, drive and to stop operating after the through hole of fuel feeding cylinder piston rod break-through of rear pattern plate is rotated, respectively referred to cover in fully until the cross of locked mode gripper shoe to the locked mode gripper shoe, the oil cylinder of the Mode-locking oil cylinder mechanism that continues starts, the oil cylinder piston bar is overhanging touches mutually until oil cylinder piston bar and locked mode gripper shoe, moving platen and solid plate are closed fully under the drive of Mode-locking oil cylinder, wait for injection moulding.Otherwise, injection moulding finishes back oil cylinder piston bar and returns oil cylinder, the transmission mechanism of locked mode gripper shoe starts, drive and to stop operating after the through hole of fuel feeding cylinder piston rod break-through of rear pattern plate is rotated, respectively referred to open fully until the cross of locked mode gripper shoe to the locked mode gripper shoe, the startup moving platen fast moving mechanism that continues, moving platen is return fast, and the piston rod of oil cylinder can be by the through hole of rear pattern plate, returns not to be subjected to stop.The advantage that this structure is compared with traditional mechanism is that plunger or the piston rod of Mode-locking oil cylinder do not move when moving platen folding mould moves, and only making micro-stroke when locked mode moves can meet the demands, so required oil mass is few, only needs a little fuel tank just passable; Because the rotation of locked mode gripper shoe provides and has allowed the support of oil cylinder piston bar rod end, shortened the length of the required guide pillar of matched moulds greatly, integral body dwindles, and has reduced equipment manufacturing cost, has saved the space that equipment occupies, and also is conducive to transportation simultaneously.
Described embodiments of the present invention above by reference to the accompanying drawings, the structure that embodiment provides is not construed as limiting the invention, and those skilled in the art make various distortion within the scope of the appended claims or revise all in protection domain in this area.
Claims (3)
1. precise injection machine clamping mechanism, include the structure frame of being formed by solid plate, moving platen, rear pattern plate, guide pillar, guide pillar is located between solid plate and the rear pattern plate, moving platen is enclosed within can be along the guide pillar slippage on the guide pillar, it is characterized in that, also has moving platen fast moving mechanism, Mode-locking oil cylinder mechanism; Wherein:
The cross section of described structure frame guide pillar is rectangular, four bights of described moving platen on guide pillar/following cylinder, guide pillar medial surface be equipped with roller;
Described moving platen fast moving mechanism is made up of motor deceleration case, a pair of gear that is meshed and tooth bar, directive wheel, described motor deceleration case is installed in the rear pattern plate dorsal part, gear is installed on the reduction gearbox output shaft, tooth bar one end is fixed on the through hole that moving platen dorsal part, the other end pass rear pattern plate and is shelved on the gear, a side, guiding wheel and rack dorsal part that directive wheel is installed in rear pattern plate through hole inner chamber hole wall touch mutually, and described moving platen fast moving mechanism has two groups to be symmetricly set on structure frame both sides;
Described Mode-locking oil cylinder mechanism is by four oil cylinders, locked mode gripper shoe and transmission mechanism, rear pattern plate is provided with the through hole of fuel feeding cylinder piston rod break-through and forms, described locked mode gripper shoe is cross, described transmission mechanism is by the motor deceleration case, the a pair of sector that is meshed, power transmission shaft, position-sensing switch is formed, described four oil cylinders are that symmetrical centre is distributed on the moving platen dorsal part with the moving platen axial line, power transmission shaft is installed on the rear pattern plate by bearing, the locked mode gripper shoe be installed in power transmission shaft stretch out outward the rear pattern plate front side the axle on, a pair of sector is installed in another axle journal of power transmission shaft of rear pattern plate dorsal part respectively, on the motor deceleration case output shaft neck, described two position-sensing switches are installed on the position, the left and right sides of criss-cross arbitrary finger rotary motion trace of locked mode gripper shoe, described position-sensing switch right lateral position respectively refers to cover in fully the through hole of the fuel feeding cylinder piston rod break-through of rear pattern plate for locked mode gripper shoe criss-cross after rotating, and described position-sensing switch left lateral position is opened the through hole of the fuel feeding cylinder piston rod break-through of rear pattern plate fully for the criss-cross respectively finger of locked mode gripper shoe after rotating.
2. precise injection machine clamping mechanism according to claim 1; it is characterized in that; the locked mode gripper shoe is installed in power transmission shaft and stretches out the axle of rear pattern plate front side outward upward for to install by intermediate plate; described intermediate plate one side end face is directly installed on the axial end of power transmission shaft by screw, the circumference of its axial line certain radius of intermediate plate opposite side tip to face distance is provided with several blind holes; be provided with stage clip in the blind hole; locked mode gripper shoe dorsal part compression press spring is fixed on the intermediate plate, and locked mode gripper shoe and rear pattern plate end face are mutually across a certain distance.
3. precise injection machine clamping mechanism according to claim 1 and 2; it is characterized in that; the solid plate of described structure frame is fixed on the injection machine support, the rear pattern plate of structure frame is shelved on the rolling element of injection machine support; the fixing threaded hole of the rear pattern plate of structure frame and injection machine support is the strip hole, the direction in strip hole and structure frame guide pillar axial direction homophase.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210160519.7A CN103286928B (en) | 2012-05-22 | 2012-05-22 | Precise injection machine clamping mechanism |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210160519.7A CN103286928B (en) | 2012-05-22 | 2012-05-22 | Precise injection machine clamping mechanism |
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| Publication Number | Publication Date |
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| CN103286928A true CN103286928A (en) | 2013-09-11 |
| CN103286928B CN103286928B (en) | 2015-09-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210160519.7A Expired - Fee Related CN103286928B (en) | 2012-05-22 | 2012-05-22 | Precise injection machine clamping mechanism |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114801045A (en) * | 2022-01-22 | 2022-07-29 | 王多喜 | Novel efficient injection molding machine and rapid forming process |
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| JPH1199545A (en) * | 1997-09-26 | 1999-04-13 | Asanosuke Chisaka | Mold clamping device of electromotor driven injection molding machine using oil pressure partially |
| CN1222438A (en) * | 1998-01-06 | 1999-07-14 | 黄顺德 | Two mould locking device |
| KR100873335B1 (en) * | 2007-07-11 | 2008-12-10 | 주식회사 우진세렉스 | Clamping unit for the plastic injection molding machine |
| CN201317089Y (en) * | 2008-12-25 | 2009-09-30 | 蔡业 | Guide rod locking mechanism for injection molding machine pressurizing through two molding boards |
| JP4472939B2 (en) * | 2003-04-17 | 2010-06-02 | 東芝機械株式会社 | Molding device for injection molding machine |
| CN102069576A (en) * | 2009-11-20 | 2011-05-25 | 北京化工大学 | Mould-closing mechanism of plastic injection molding machine |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN202702556U (en) * | 2012-05-24 | 2013-01-30 | 上海云静企业发展有限公司 | Precise mould locking mechanism of injection molding machine |
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2012
- 2012-05-22 CN CN201210160519.7A patent/CN103286928B/en not_active Expired - Fee Related
Patent Citations (6)
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| JPH1199545A (en) * | 1997-09-26 | 1999-04-13 | Asanosuke Chisaka | Mold clamping device of electromotor driven injection molding machine using oil pressure partially |
| CN1222438A (en) * | 1998-01-06 | 1999-07-14 | 黄顺德 | Two mould locking device |
| JP4472939B2 (en) * | 2003-04-17 | 2010-06-02 | 東芝機械株式会社 | Molding device for injection molding machine |
| KR100873335B1 (en) * | 2007-07-11 | 2008-12-10 | 주식회사 우진세렉스 | Clamping unit for the plastic injection molding machine |
| CN201317089Y (en) * | 2008-12-25 | 2009-09-30 | 蔡业 | Guide rod locking mechanism for injection molding machine pressurizing through two molding boards |
| CN102069576A (en) * | 2009-11-20 | 2011-05-25 | 北京化工大学 | Mould-closing mechanism of plastic injection molding machine |
Non-Patent Citations (2)
| Title |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114801045A (en) * | 2022-01-22 | 2022-07-29 | 王多喜 | Novel efficient injection molding machine and rapid forming process |
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| CN103286928B (en) | 2015-09-23 |
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