CN100467248C - Electric injection device - Google Patents
Electric injection device Download PDFInfo
- Publication number
- CN100467248C CN100467248C CNB2006100341961A CN200610034196A CN100467248C CN 100467248 C CN100467248 C CN 100467248C CN B2006100341961 A CNB2006100341961 A CN B2006100341961A CN 200610034196 A CN200610034196 A CN 200610034196A CN 100467248 C CN100467248 C CN 100467248C
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- worm
- motor
- injection device
- wheel shaft
- bearing housing
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- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
The present invention discloses an electric injection equipment, including injection machine body and its drive device. The driving mechanism of said drive device includes a worm wheel worm drive pair which is connected with motor and positioned in speed-reducing box, on the worm wheel worm drive pair a screw drive pair is set. The speed-reducing box and bearing box are formed into one body structure. Said invention is simple in structure, and its power transfer efficiency is high.
Description
Technical field
The present invention relates to a kind of plastic injection-moulded device technique field, be specifically related to a kind of improvement of electric injection device.
Background technology
Along with energy problem comes into one's own day by day, circular economy concept must propose when especially China was closely a little, and it is more and more important that energy savings becomes.Plastic products use more and more in our life, and injection moulding is to produce one of main means of plastic products.Therefore, energy-conservationization just becomes an important directions of current injector development.
More common on the market injector mainly is full hydraulic injector and full electric type injector at present.The full hydraulic injector is a kind of injection device that plastics are injected a kind of hydraulic drive axial thrust that adopts for a long time in the field, this device is by long-term use practice, there is following shortcoming in it: (1) wastes energy, show two aspects: the one, its course of work is by electric energy → hydraulic pressure energy → mechanical energy, cause course of work intermediate link to increase, efficient and then waste electric energy cut down the consumption of energy; The 2nd, hydraulic system is to be in continuous duty, and the injection duty is the part of work period, causes hydraulic system to consume most useless merit, and then the waste electric energy; (2) operating cost height, the hydraulic system consumable accessory is many, has increased the amount of labour of maintaining, increases the expense of acquiring of consumable accessory and hydraulic medium simultaneously; (3) pollute working environment, the link of hydraulic system leakage is many, under the effect of hydraulic pressure, has increased the possibility of hydraulic fluid leak, pollutes working environment easily.
Have series of advantages and compare the full hydraulic injector for the full electric type injector that occurs in the market eighties in 20th century, particularly environmental protection and energy-conservation aspect advantage, advanced at present full electric type injector economize on electricity can reach 70%.In view of many advantages of full electric type injector, it has become one of main direction of this area research and development.
The disclosed full electric injection molding machine of China's CN200320109083.5 patent " full electric injection molding machine is penetrated the platform motor-driven mechanism " is penetrated the platform motor-driven mechanism, include the reducing motor that is contained on the fuselage, sprocket wheel, the actuating unit that chain constitutes, by this transmission device drive trapezoidal screw and with penetrate the nut that platform is fixed and engage with trapezoidal screw, nut is provided with four and is the lead that is slidingly matched and parallel with the axis of trapezoidal screw with it, and be with a spring on each lead, nut adds lead and spring by trapezoidal screw and assists to finish and penetrate moving of platform.The disclosed drives structure of this patent need drive by the sprocket wheel chain, and the drive mechanism relative complex is not compact, the fault rate height.And publication number be CN1611342 application for a patent for invention " electric motor driven injection molding machine " a kind of overall simplification that provides and make compact electric motor driven injection molding machine.The state of a cantilever is arranged in each end of ball-screw in this equipment, and rotates via a belt pulley and a synchronous belt, thereby makes the motion of moveable die plate.Still there is above-mentioned defective in its transmission mechanism.
Summary of the invention
Problem to be solved by this invention provides the effective electric injection device of transferring power of a kind of high accuracy, low energy consumption, low noise.
The present invention is achieved through the following technical solutions:
Design a kind of electric injection device, include injection body and drive unit thereof, described drive unit comprises motor and the transmission mechanism that is connected with motor, described transmission mechanism comprises with motor and directly is connected the worm and gear transmission that is positioned at reduction box, also is provided with the worm drive pair on the worm and gear transmission.
Technical scheme of the present invention is reduction box and the design of bearing housing integrative-structure, and bearing housing is fixed on the left end of deceleration box, and the right-hand member endoporus of bearing housing is made into the bead shoulder with location bearing, and bears the axial thrust that injection device produces.
The worm and gear transmission is the enveloping worm wheel pair.Worm screw is supported by bearing, and worm gear and worm-wheel shaft are made of one, and an end of worm-wheel shaft is installed in the bearing housing that bears axial force, and is supported by double-row conical bearing, and the other end of worm-wheel shaft is installed in the reduction box and by ball bearing and supports.
Worm-wheel shaft is set to hollow shaft sleeve, and the worm-wheel shaft hollow shaft sleeve is provided with the snail line, and the formation screw pair matches with the spiral ejection axle that is provided with the snail line.Have gathering sill on the spiral ejection axle, in the terminal pad that connects injector side plate and bearing housing feather key is installed, feather key matches with the gathering sill of spiral ejection axle.
Motor adopts the Fraquent start motor, and electric motor end cap connects with deceleration box by conjunction, and the projecting shaft of motor is connected with the worm screw projecting shaft by coupling band.
The present invention compared with prior art has following advantage:
Electric injection device provided by the present invention adopts all-electric driving mechanism, and its transmission directly drives spiral ejection axle by the transmission of worm and gear, and is simple and reasonable, transferring power efficient height, and fault rate is low.Adopt electric injection device provided by the present invention, the injection precision height, energy consumption is low, has reduced operating cost.
Description of drawings
Fig. 1 is that master of the present invention looks generalized section;
Fig. 2 is that A-A analyses and observe and fundamental diagram among Fig. 1.
Specific embodiments
The invention will be further described below by specific embodiment:
Shown in Fig. 1-2, a kind of electric injection device includes injection body and its drive unit.Its injector body portion is identical with prior art.The transmission mechanism of driven by motor of the present invention includes reduction box I and bearing housing II, and the reduction box I of integrated design and bearing housing II are provided with worm and gear transmission and worm drive pair.
Bearing housing 10 is fixed on the left end of deceleration box 1, and the right-hand member endoporus of bearing housing 10 is made into flange shoulder 9, with locating shaft bearing and bearing, and bears whole axial thrusts that injection device produces.Bearing 17 is installed on the end axle of worm-wheel shaft 3, and by the shaft shoulder 8 location, fixing at the left end of bearing 17 by nut 16.Reduction box I and bearing housing II integrated structure design make simple in structure, compact, have improved stress condition, save cost.
What worm and gear transmission of the present invention adopted is the enveloping worm wheel pair, can certainly adopt other forms of worm gear version.In the reduction box bottom worm screw 6 is housed, the two axial ends of worm screw 6 is installed on the bearing 22,21.Worm screw 6 is meshed with worm gear 2, and worm gear 2 is made of one with worm-wheel shaft, simplifies the structure, and improves transmission efficiency.One end of worm-wheel shaft 3 is installed on the bearing 17 that is positioned at bearing housing, and bearing 17 adopts double-row conical bearing, and adopts clamp nut 16 fixing.The other end of worm-wheel shaft 3 is installed in the reduction box and by ball bearing 4 and supports, and adopts clamp nut 5 fixing.
The design of the bearing housing external form of drive unit and size also can be identical with the existing hydraulic cylinder of hydraulically powered injector that adopts among the present invention, is convenient to exchange and cooperates with the injector side plate and fix.That is to say that the fluid pressure type drive unit that existing injector framework lateral plate connects also can be substituted by the transmission mechanism of driven by motor of the present invention.
Described worm-wheel shaft is set to the version of hollow shaft sleeve 7, and on the worm-wheel shaft hollow shaft sleeve snail line is set, and spiral ejection axle 13 is installed in and forms the worm drive pair in the hollow shaft sleeve of worm-wheel shaft 3.Spiral ejection axle 13 is provided with the snail line that is meshed with the worm-wheel shaft hollow shaft sleeve.Also have gathering sill on spiral ejection axle, in the terminal pad 15 that connects injector framework lateral plate 11 and bearing housing feather key 14 is installed, feather key matches with the gathering sill of spiral ejection axle.Described terminal pad 15 is connected by same screw 12 with bearing housing 10 and injector framework lateral plate 11 and is fixed into an integral body.
Motor II I of the present invention adopts the Fraquent start motor, and electric motor end cap connects with deceleration box 1 by conjunction 23, and the projecting shaft 18 of motor is connected with worm screw 6 projecting shafts 20 by coupling band 19.
The course of work of electric injection machine device driving mechanism of the present invention is as follows: electric injection device is in the home position before injection, spiral ejection this moment axle 13 is retracted to the position that stroke is an initial point, when the injection beginning, electric motor starting is also pressed certain orientation and is rotated, driving worm screw 6 by coupling band 19 rotates, worm-wheel shaft 3 by worm screw 6 rotating drive worm gears 2 and one thereof rotates, because worm-wheel shaft 3 is the hollow shaft sleeves 7 with band motion thread, spiral ejection axle 13 with matching forms the screw pair, in 14 pairs of spiral ejections of feather key axle 13 under the effect of gathering sill, can only travel forward by rectilinear direction, and then the injection rod that promotes in the injection body produces action of injection forward, finally finishes injection operation; When finishing injection operation, by technological requirement motor is rotated by opposite direction and carry out above-mentioned opposite direction action, realize that spiral ejection axle 13 resets, and then realize that injection rod resets, injection device has been finished an injection cycle thus.Enter next injection cycle according to technological requirement subsequently.
Electric injection machine device driving mechanism provided by the present invention directly is converted to rectilinear motion to rotatablely moving of power source motor generation by drive structure of gear worm, and is simple in structure, improved transmission efficiency, reduced cost.This driving mechanism not only can be used the injecting unit of injection moulding apparatus, also can be applied in the driving mechanism of other unit such as locked mode.
Above-described only is preferred implementation of the present invention.Except above version, type of belt drive of the present invention can also adopt other scheme, can adopt other worm gear as the enveloping worm wheel pair; Described screw pair can adopt ball-screw; Described motor can adopt the motor of servomotor or other form.For present technique field those of ordinary skill; do not breaking away under the preceding topic of the principle of the invention; as long as adopt the worm and gear transmission to drive screw pair realizing the injection operation, and increase on its basis or change some parts, all drop within protection scope of the present invention.
Claims (5)
1, a kind of electric injection device, include injection body and drive unit thereof, drive unit comprises motor and the transmission mechanism that is connected with motor, it is characterized in that: described transmission mechanism comprises and is connected the worm and gear transmission that is positioned at reduction box (I) with motor, the worm and gear transmission is provided with the worm drive pair, described reduction box (I) and bearing housing (II) are structure as a whole, also be structure as a whole with worm-wheel shaft (3) with the worm gear (2) of worm screw (6) engagement, be set to hollow shaft sleeve (7) in the worm-wheel shaft, worm-wheel shaft hollow shaft sleeve inwall is provided with the snail line, and worm-wheel shaft matches with the spiral ejection axle that is provided with the snail line and forms the worm drive pair.
2, electric injection device according to claim 1, it is characterized in that: bearing housing (10) is fixed on the left end of deceleration box (1), and the endoporus right-hand member of bearing housing (10) is provided with the flange shoulder (9) that is used to make the bearing location and bears the axial thrust of injection device generation.
3, electric injection device according to claim 2, it is characterized in that: an end of described worm-wheel shaft is installed in the bearing housing that bears axial force, and by double-row conical bearing (17) support, the other end of worm-wheel shaft is installed in the reduction box and by ball bearing (4) and supports.
4, electric injection device according to claim 3, it is characterized in that: on spiral ejection axle, also have gathering sill, in the terminal pad (15) that connects injector side plate (11) and bearing housing feather key (14) is installed, feather key matches with the gathering sill of spiral ejection axle.
5, electric injection device according to claim 4, it is characterized in that: described motor is the Fraquent start motor, End cover for motor connects with deceleration box (1) by conjunction (23), and the projecting shaft of motor (18) is connected with worm screw (6) projecting shaft by coupling band (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100341961A CN100467248C (en) | 2006-03-07 | 2006-03-07 | Electric injection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100341961A CN100467248C (en) | 2006-03-07 | 2006-03-07 | Electric injection device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1824488A CN1824488A (en) | 2006-08-30 |
| CN100467248C true CN100467248C (en) | 2009-03-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006100341961A Expired - Fee Related CN100467248C (en) | 2006-03-07 | 2006-03-07 | Electric injection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100467248C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101811360B (en) * | 2010-04-26 | 2013-07-17 | 青岛科技大学 | Rubber helical gearing cold feed extruder |
| CN106696213B (en) * | 2016-11-22 | 2019-03-01 | 浙江大学 | The injection driving device of miniature injection machine |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1665665A (en) * | 2002-07-09 | 2005-09-07 | 西门子公司 | Drive apparatus for a plastics processing machine |
| CN1695922A (en) * | 2005-05-20 | 2005-11-16 | 青岛科技大学 | Full electrodynamic mould locking device of rubber injection machine |
| CN1718413A (en) * | 2005-05-20 | 2006-01-11 | 青岛科技大学 | Full electric screw rotation injection moulding device and injection shaping method |
| CN2915466Y (en) * | 2006-03-13 | 2007-06-27 | 青岛科技大学 | Electric injection device |
-
2006
- 2006-03-07 CN CNB2006100341961A patent/CN100467248C/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1665665A (en) * | 2002-07-09 | 2005-09-07 | 西门子公司 | Drive apparatus for a plastics processing machine |
| CN1695922A (en) * | 2005-05-20 | 2005-11-16 | 青岛科技大学 | Full electrodynamic mould locking device of rubber injection machine |
| CN1718413A (en) * | 2005-05-20 | 2006-01-11 | 青岛科技大学 | Full electric screw rotation injection moulding device and injection shaping method |
| CN2915466Y (en) * | 2006-03-13 | 2007-06-27 | 青岛科技大学 | Electric injection device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1824488A (en) | 2006-08-30 |
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| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090311 Termination date: 20120307 |