CN104476742B - Self-locking clamping mechanism of injection molding machine - Google Patents
Self-locking clamping mechanism of injection molding machine Download PDFInfo
- Publication number
- CN104476742B CN104476742B CN201410827736.6A CN201410827736A CN104476742B CN 104476742 B CN104476742 B CN 104476742B CN 201410827736 A CN201410827736 A CN 201410827736A CN 104476742 B CN104476742 B CN 104476742B
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- Prior art keywords
- back nut
- bull gear
- self
- locking
- gear
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- Expired - Fee Related
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/64—Mould opening, closing or clamping devices
- B29C45/68—Mould opening, closing or clamping devices hydro-mechanical
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/64—Mould opening, closing or clamping devices
- B29C45/68—Mould opening, closing or clamping devices hydro-mechanical
- B29C2045/686—Mould opening, closing or clamping devices hydro-mechanical using a screw and nut mechanism for mould closing and a mould clamping ram acting on another nut
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The inventiondiscloses a self-locking clamping mechanism of an injection molding machine. The self-locking clamping mechanism comprises a fixed mold plate (1), a movable mold plate (2), pull rods (3) and a mold moving oil cylinder (4), wherein the fixed mold plate (1) is fixed to one end of the pull rods (3), the movable mold plate (2) is arranged at the other end of the pull rods (3) in a sleeving manner, and a piston end of the mold moving oil cylinder (4) is connected with the movable mold plate (2) to drive the movable mold plate (2) to move. The clamping mechanism further comprises a mold locking structure, wherein the mold locking structure comprises rear nuts (5) corresponding to the pull rods (3) in a one-to-one mode, a large gear ring (6) and a power mechanism for driving the large gear ring (6) to rotate, the rear nuts (5) are screwed onto the pull rods (3), the outer edge of each rear nut (5) is in a gear shape, and the large gear ring is meshed with the rear nuts (5) respectively under the drive of the power mechanism and drives the rear nuts to rotate on the corresponding pull rods. The self-locking clamping mechanism does not need a mold locking oil cylinder and reduces the energy consumption of mold locking through self-locking between mechanisms.
Description
Technical field
The present invention relates to injection machine field, the self-locking clamping of specifically a kind of injection machine.
Background technology
The mould-matching structure of existing two-plate injection machine, mainly has two kinds of hydraulic direct locking-type and combined type.Wherein, hydraulic direct locking
Formula workflow is mainly：Moved by rapid mould-moving oil cylinder pushing moving platen first, then by band-type brake structure by Draw bar lock
Extremely, then by Mode-locking oil cylinder by mold-locked, the hydraulic direct locking-type has an automatic mold-adjustment function, but the hydraulic pressure system required for which
System is relative complex, and reliability is poor, and the size that takes up room compares three-plate type injection machine also no particularly apparent advantage, especially
When larger for clamp force, four very big oil cylinders are needed, power is big, and during locked mode and pressurize is to need to consume larger energy
Amount.Typical combined type, then mainly drive moving platen quickly to move by being fixed on Quick cylinder in quiet template, mould closed
Close, specifically, be to be relatively fixed by positioning and locking device between moving platen and pull bar, pull bar is pulled by Mode-locking oil cylinder then
By mold-locked.In combined type, mode transfer structure is generally divided into following two：First, by fine adjustment pull bar in Mode-locking oil cylinder
Position, makes pull bar tooth top and agrees with, positions with the root position for entering lock nut and then locking pull bar；2nd, by engines such as motors
Structure is adjusted into lock nut location, is made pull bar and is agreed with, positions with the position for entering lock nut and then locking pull bar.Both mode transfer structures
In, four pull bars or enter lock nut and be required for increasing single power set, while oil piping system complicates, increased quite big
Cost, be poorly suitable for middle-size and small-size two-plate injection machine.
Patent (notification number：CN201313365Y) disclose a kind of clamping apparatus of two triggers, including moving platen, pull bar,
Solid plate, pull-rod nut, pull bar pressing plate, mould shifting oil cylinder, band-type brake oil cylinder, two halves formula folding band-type brake nut, band-type brake locating shaft, band-type brake
Positioning shaft pressuring plate, drag link bearing, spring, high-voltage lock mould cylinder piston rod, high-voltage lock mould oil cylinder bonnet, high-voltage lock mould cylinder body,
High-voltage lock mould oil cylinder front cover, guide copper sleeve, four pull bars and the connection at solid plate of the device are the mode being completely fixed, and are embraced
All design, on rear side of moving platen, manually can be adjusted four when putting together machines for lock part and high-voltage lock mould part
The band-type brake screw position adjustment of pull bar is completely fixed with solid plate behind unified position, the stressed length complete of four pull bars
Sample, the clamp force that four pull bars are shared are also just the same, so the deflection of four pull bars is also just the same.This structure can be with
Locked mode precision is improved, but yet suffers from needing high pressure clamping device, hydraulic system structure is extremely complex, the problems such as high energy consumption.
The content of the invention
In view of this, the invention provides a kind of self-locking clamping of injection machine, to solve prior art presence
Hydraulic system is complicated, the technical problem of high energy consumption, proposes the low self-locking mould-locking structure of energy consumption to solve above-mentioned technical problem.
The technical solution of the present invention is to provide a kind of self-locking clamping of the injection machine of following structure, including
Solid plate, moving die plate, pull bar and mould shifting oil cylinder, described solid plate are fixed on one end of pull bar, described moving die plate set
Located at the other end of pull bar, the piston end of the mould shifting oil cylinder is connected to drive moving die plate to move with moving die plate；
Described clamping also includes mould-locking structure, and described mould-locking structure includes rear spiral shell one-to-one with pull bar
The actuating unit that female, bull gear and driving bull gear are rotated, described pull bar are provided with the external screw thread coordinated with back nut, institute
The back nut stated is combined on pull bar, and the outer rim of back nut is arranged to gear-like, and a disk is installed on moving die plate, described
Bull gear be installed on disk outer rim, steel ball is set between disk and bull gear, bull gear is rotatably connected with disk；Canine tooth
Circle is engaged with back nut under the driving of actuating unit respectively and drives back nut to rotate on corresponding pull bar.
Using above structure, the present invention compared with prior art, with advantages below：Using the present invention, during matched moulds, moving
In the presence of mould oil cylinder, make moving die plate contact with the mould on solid plate, then drive bull gear to rotate by actuating unit, by
This back nut for being engaged with of drive is rotated, so as to lock to moving die plate, back nut be subject to the counteracting force of moving die plate with
And the frictional force with pull bar, back nut and pull rod screw connection, under the counteracting force and frictional force, it is deformed, so as to
Back nut is pinned, while the friction energy between screw thread produces stronger self-locking effect, and bull gear has to the torque of actuating unit
Amplification, the present invention reduce the energy consumption of locked mode by using the self-locking between mechanism without using Mode-locking oil cylinder.
Preferably, described clamping mechanism also includes and the one-to-one back nut driving means of back nut, it is described
Back nut driving means include little gear, servomotor, motor fixing frame, line slideway and the rotation being arranged on back nut
Part, described little gear are engaged with back nut outer rim, and little gear is connected with servo motor output shaft, and servomotor is arranged on motor
On fixed mount, described line slideway is fixedly mounted on moving die plate and the motor vertical, described with the big plane of moving die plate
Fixed mount and line slideway slidable connection, described tumbler are connected on motor fixing frame simultaneously.During matched moulds, by back nut
Driving means drive back nut to screw to contacting with moving die plate, during die sinking, then drive back nut to leave, to reserve the sky of die sinking
Between, when driving back nut to rotate, is slided on line slideway by back nut drive motor fixed mount, due to motor fixing frame and
Tumbler connects, and does not interfere with the rotation of back nut, while and can successfully drive motor fixed mount slip.
Preferably, described tumbler is bearing, bearing inner race is connected with back nut axial restraint, and described motor is solid
Determine frame to be connected with bearing outer ring.When back nut is rotated, bearing inner race concomitant rotation is driven, now due to bearing outer ring and motor
Fixed mount connects, therefore bearing inner race and outer ring relatively rotate, in the case where not affecting back nut to rotate, and can drive motor
Fixed mount is moved forward and backward.
Preferably, multiple areas with teeth and multiple no-teeths are set on described bull gear, described area multiple with teeth is at least
Correspond with back nut, described area with teeth and no-teeth are spaced.This be designed for preventing tooth on back nut with it is big
Tooth on gear ring is interfered and initiating failure, that is, when needing engagement, allow area with teeth to engage with back nut, before back nut is quick
After when moving, then make no-teeth correspondence back nut, to prevent interference of tooth.
Preferably, first tooth engaged with back nut in described area with teeth is radially scalable in bull gear, lead to
Cross elastic reset member to be installed on bull gear.The design can prevent first tooth from interfering with back nut and causing " card
Extremely " etc. phenomenon, serves the effect of buffering, follow-up engagement is effectively carried out.
Preferably, described clamping also includes controller, moment of torsion is installed on the output shaft of the servomotor
Sensor, described servomotor and torque sensor are electrically connected with the controller.Judge whether torque sensor reaches setting
Value, if reaching controls servomotor and stops operating, and servomotor response is fast, is capable of achieving the fast forwarding and fast rewinding of back nut.
Preferably, described actuating unit is hydraulic motor, drive gear is connected with the hydraulic motor, it is described
Drive gear engage with bull gear.Bull gear is driven to rotate by hydraulic motor, drive gear is much smaller than bull gear, serves
The effect of moment amplification.
Preferably, described moving die plate is provided with for detecting that the displacement that moving die plate or bull gear are moved forward and backward is passed
Sensor, during die sinking, displacement transducer detects bull gear and returns to original position, then control hydraulic motor and quit work.So as to accurately
Control hydraulic motor.
Description of the drawings
Fig. 1 is the sectional view of the self-locking clamping of injection machine of the present invention；
Fig. 2 is the side view of the self-locking clamping of injection machine of the present invention；
Fig. 3 is the axis side view of the self-locking clamping of injection machine of the present invention；
As illustrated, 1, solid plate, 2, moving die plate, 3, pull bar, 4, mould shifting oil cylinder, 5, back nut, 6, bull gear, 6.1,
Area with teeth, 6.2, no-teeth, 7, front nut, 8, fuselage guide rail, 9.1, little gear, 9.2, servomotor, 9.3, motor fixing frame,
9.4th, line slideway, 9.5, tumbler, 10, hydraulic motor, 11, controller, 12, torque sensor, 13, displacement transducer.
Specific embodiment
The invention will be further described with specific embodiment below in conjunction with the accompanying drawings, but the present invention is not restricted to these
Embodiment.
The present invention covers any replacement, modification, equivalent method and scheme made in the spirit and scope of the present invention.For
Make the public have the present invention thoroughly to understand, concrete details is described in detail in present invention below preferred embodiment, and
Description without these details for a person skilled in the art can also understand the present invention completely.Additionally, the accompanying drawing of the present invention
In in order to illustrate needs, be not accurately drawn to scale completely, here is explained.
A kind of as shown in Figure 1,2 and 3, the self-locking clamping of injection machine involved in the present invention, including solid plate 1,
Moving die plate 2, pull bar 3 and mould shifting oil cylinder 4, one end of described pull bar 3 are fixed on solid plate 1,2 sets of described moving die plate
Located at the other end of pull bar 3, the piston end of the mould shifting oil cylinder 4 is connected to drive moving die plate 2 to move with moving die plate 2；
Described clamping also includes mould-locking structure, and described mould-locking structure includes rear spiral shell one-to-one with pull bar 3
Female 5, the actuating unit that bull gear 6 and driving bull gear 6 are rotated, described pull bar 3 are provided with the outer spiral shell coordinated with back nut 5
Stricture of vagina, described back nut 5 are combined on pull bar 3, and the outer rim of back nut 5 is arranged to gear-like, on moving die plate 2 install one
Disk, described bull gear 6 are installed on disk outer rim, and steel ball is arranged between disk and bull gear 6, and bull gear 6 can with disk
Rotate connection；Bull gear 6 is engaged with back nut 5 under the driving of actuating unit respectively and drives back nut 5 to draw corresponding
Rotate on bar 3.
The basic solution of the technical problem for solving the present invention is constituted above.Such scheme is further limited：
Described front nut is fixed on pull bar on solid plate.Described mould shifting oil cylinder 4 is by mould shifting oil cylinder free bearing, alignment pin and universal
Head is connected with moving die plate 2.Meanwhile, it is provided with fuselage guide rail 8 and slides on fuselage for moving die plate 2.3 points described of pull bar is
Two parts, are polished rod structure near 1 part of solid plate, are screw-rod structure near moving die plate 2, screw for back nut 5；Pull bar 3
Quantity it is consistent with prior art, be four.The installation of described bull gear 6 can be accomplished by：Moving
One disk is installed on moving platen, described bull gear 6 is arranged on disk outer rim, is provided with therebetween steel ball, bull gear and circle
Disk is rotatably connected, just as the structure of bearing；Also can by multiple bearing posts according to circumferential arrangement are arranged on moving die plate,
Described bull gear is sheathed on bearing post, and bearing post both can position and can allow its smooth rotation to which.
Described clamping mechanism also includes and 5 one-to-one back nut driving means of back nut that described back nut drives
Dynamic device includes little gear 9.1, servomotor 9.2, motor fixing frame 9.3, line slideway 9.4 and is arranged on back nut 5
Tumbler 9.5, described little gear 9.1 are engaged with back nut outer rim, and little gear 9.1 is connected with the output shaft of servomotor 9.2,
Servomotor 9.2 be arranged on motor fixing frame 9.3 on, described line slideway 9.4 be fixedly mounted on moving die plate 2 and with shifting
2 big plane of moving platen is vertical, described motor fixing frame 9.3 and 9.4 slidable connection of line slideway, described tumbler 9.5
It is connected on motor fixing frame 9.3 simultaneously.During matched moulds, back nut is driven to screw to connecing with moving die plate by back nut driving means
Touch, during die sinking, then drive back nut to leave, to reserve the space of die sinking, when driving back nut to rotate, by back nut band galvanic electricity
Machine fixed mount slides on line slideway, as motor fixing frame is connected with tumbler, does not interfere with the rotation of back nut.Straight line
The end of guide rail 9.4 is provided with directional at-tachment seat, to prevent motor fixing frame 9.3 from skidding off line slideway 9.4, while being also prevented from straight
Line guide rail is because conduct oneself with dignity and natural torsion.
Described tumbler 9.5 is bearing, and bearing inner race is connected with back nut axial restraint, described motor fixing frame
9.3 are connected with bearing outer ring.
Multiple areas with teeth 6.1 and multiple no-teeths 6.2 are set on described bull gear 6, described area multiple with teeth 6.1 is at least
Correspond with back nut 5, described area with teeth 6.1 and no-teeth 6.2 are spaced.Can use an area with teeth and actuating unit
It is engaged, certainly, actuating unit also can be coordinated with the inner ring (internal tooth is provided with inner ring) of bull gear 6.
First tooth engaged with back nut 5 in described area with teeth 6.1 is radially scalable in bull gear 6, by bullet
Property reset element is installed on bull gear 6.For example, using spring as elastic reset member.
Described clamping also includes controller 11, is provided with torque sensing on the output shaft of the servomotor 9.2
Device, described servomotor 9.2 and torque sensor 12 are electrically connected with controller 11.When back nut 5 is contacted with moving die plate 2
When, moment of torsion rises, and detects moment of torsion rising by torque sensor and reaches setting value, then controls servomotor and stop operating.
Described actuating unit is hydraulic motor 10, and drive gear, described drive are connected with the hydraulic motor 10
Moving gear is engaged with bull gear 6.By hydraulic motor drive bull gear rotate, the drive gear number of teeth far fewer than the bull gear number of teeth,
Serve the effect of moment amplification.
Described moving die plate 2 is provided with for detecting displacement transducer 13 that bull gear 6 is moved forward and backward, during die sinking, position
Displacement sensor detects bull gear and returns to original position, then control hydraulic motor 10 and quit work." bull gear returns to original position " refers to greatly
Ring gear against rotation goes back to original position, can be using its first tooth as detection object.
Described torque sensor, displacement transducer, servomotor and hydraulic motor are connected with controller, to realize association
With control.
Based on two trigger clamping of above-mentioned self-locking, a kind of folding mould side of two trigger clamping of self-locking can be formed
Method, comprises the following steps：
Matched moulds process：
1) mould shifting oil cylinder pulls moving die plate, moving die plate is just contacted with the mould on solid plate, and mould shifting oil cylinder stops
Only work；
2) servomotor rotation driving pinion is rotated, and little gear drives the tooth of back nut outer ring to rotate, and drives back nut
Rotating while back nut side is moved to moving die plate direction and fitting with moving die plate, now, servomotor quits work.Watch
Take motor to quit work by torque sensor control, torque sensor detects moment of torsion more than setting value, sends feedback signal, with
Make which quit work；
3) actuating unit drives bull gear to rotate, and bull gear is rotated and drives back nut to turn by the tooth engagement on back nut
Dynamic, back nut is rotated and is engaged with the external screw thread on pull bar by its internal female thread so that pull bar deformation reaches and required lock
The corresponding deflection of mould power, completes locked mode, and keeps clamp force to terminate to matched moulds.Actuating unit can adopt hydraulic motor, hydraulic pressure
To after arranges value, the pressure transducer on oil circuit sends feedback signal to motor after detecting oil pressure, and electromagnetic valve cut-out oil circuit makes liquid
Pressure motor pressure is maintained to part cooling, and mould assembling action is completed.
Die sinking process：
1) actuating unit reversion, drives bull gear to rotate backward, so as to drive back nut to invert, when bull gear returns to original position
When, clamp force disappears, and actuating unit quits work；
2) servomotor reversion drives little gear to rotate backward, and little gear drives back nut to continue to rotate backward, back nut
Female thread engage with pull bar outer nut, move to setting position to rear spiral shell plate direction is left；
3) mould shifting oil cylinder promotes moving die plate, moving die plate is separated to back nut side, shifting formwork with the mould on solid plate
Oil cylinder quits work.
Below only preferred embodiments of the present invention are described, but are not to be construed as limiting the scope of the invention.This
Invention is not only limited to above example, and its concrete structure allows to change.In a word, all guarantors in independent claims of the present invention
The various change made in the range of shield is within the scope of the present invention.
Claims (6)
1. the self-locking clamping of a kind of injection machine, including solid plate (1), moving die plate (2), pull bar (3) and mould shifting oil cylinder
(4), described solid plate (1) is fixed on one end of pull bar (3), and described moving die plate (2) is sheathed on the another of pull bar (3)
End, the piston end of the mould shifting oil cylinder (4) are connected to drive moving die plate (2) mobile with moving die plate (2)；It is characterized in that：
Described clamping also includes mould-locking structure, and described mould-locking structure includes and the one-to-one back nut of pull bar (3)
(5), the actuating unit that bull gear (6) and driving bull gear (6) are rotated, described pull bar (3) is provided with is matched somebody with somebody with back nut (5)
The external screw thread of conjunction, described back nut (5) are combined on pull bar (3), and the outer rim of back nut (5) is arranged to gear-like, is moving
One disk is installed in template (2), described bull gear (6) is installed on disk outer rim, arranges between disk and bull gear (6)
Steel ball, bull gear (6) are rotatably connected with disk；Bull gear (6) is nibbled with back nut (5) under the driving of actuating unit respectively
Merge and drive back nut (5) to rotate on corresponding pull bar (3)；
Described clamping mechanism also includes and the one-to-one back nut driving means of back nut (5) that described back nut drives
Device includes little gear (9.1), servomotor (9.2), motor fixing frame (9.3), line slideway (9.4) and is arranged at back nut
(5) tumbler (9.5) on, described little gear (9.1) are engaged with back nut outer rim, little gear (9.1) and servomotor
(9.2) output shaft connection, on motor fixing frame (9.3), described line slideway (9.4) is solid for servomotor (9.2)
Dingan County is mounted on moving die plate (2) and vertical with moving die plate (2), described motor fixing frame (9.3) and line slideway (9.4)
Slidable connection, described tumbler (9.5) is while be connected on motor fixing frame (9.3)；
Multiple areas with teeth (6.1) and multiple no-teeths (6.2), described area multiple with teeth (6.1) are set on described bull gear (6)
At least correspond with back nut (5), described area with teeth (6.1) and no-teeth (6.2) are spaced.
2. the self-locking clamping of injection machine according to claim 1, it is characterised in that：Described tumbler (9.5)
For bearing, bearing inner race is connected with back nut axial restraint, and described motor fixing frame (9.3) is connected with bearing outer ring.
3. the self-locking clamping of injection machine according to claim 1, it is characterised in that：Described area with teeth (6.1)
Upper first tooth engaged with back nut (5) is radially scalable in bull gear (6), is installed on canine tooth by elastic reset member
On circle (6).
4. the self-locking clamping of injection machine according to claim 2, it is characterised in that：Described clamping is also wrapped
Controller (11) is included, torque sensor, described servomotor (9.2) are installed on the output shaft of the servomotor (9.2)
It is electrically connected with the controller with torque sensor.
5. the self-locking clamping of injection machine according to claim 1, it is characterised in that：Described actuating unit is liquid
Pressure motor (10), is connected with drive gear on the hydraulic motor (10), and described drive gear is engaged with bull gear (6).
6. the self-locking clamping of injection machine according to claim 2, it is characterised in that：Described moving die plate (2)
It is provided with for detecting displacement transducer that bull gear (6) is moved forward and backward, during die sinking, displacement transducer detects bull gear and returns to
Original position, then control hydraulic motor (10) and quit work.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410827736.6A CN104476742B (en) | 2014-12-26 | 2014-12-26 | Self-locking clamping mechanism of injection molding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410827736.6A CN104476742B (en) | 2014-12-26 | 2014-12-26 | Self-locking clamping mechanism of injection molding machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104476742A CN104476742A (en) | 2015-04-01 |
| CN104476742B true CN104476742B (en) | 2017-04-12 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410827736.6A Expired - Fee Related CN104476742B (en) | 2014-12-26 | 2014-12-26 | Self-locking clamping mechanism of injection molding machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104476742B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107599329A (en) * | 2017-09-05 | 2018-01-19 | 华南理工大学 | Double-plate injection moulding machine carrying screw pair synchronously follows the clamping mechanism and method of moving platen |
| CN108213387A (en) * | 2018-01-31 | 2018-06-29 | 湖北环电磁装备工程技术有限公司 | The die casting machine mold locking mechanism that a kind of no frame permanent magnet synchronous motor directly drives |
| CN111775403B (en) * | 2020-07-10 | 2022-11-18 | 温州市爱氏光学实业有限公司 | Manufacturing mold for plastic glasses |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5649237A (en) * | 1979-09-28 | 1981-05-02 | Nissei Plastics Ind Co | Clamping device for mold |
| CN1137442A (en) * | 1995-06-02 | 1996-12-11 | 陈明山 | High rigidity die closing and clamping device for injection forming machine |
| CN204471783U (en) * | 2014-12-26 | 2015-07-15 | 饶宾期 | A kind of self-locking clamping of injection machine |
-
2014
- 2014-12-26 CN CN201410827736.6A patent/CN104476742B/en not_active Expired - Fee Related
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|---|---|
| CN104476742A (en) | 2015-04-01 |
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