CN203381099U - Full-electric ultrahigh-speed injection molding machine - Google Patents
Full-electric ultrahigh-speed injection molding machine Download PDFInfo
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- CN203381099U CN203381099U CN201320135753.4U CN201320135753U CN203381099U CN 203381099 U CN203381099 U CN 203381099U CN 201320135753 U CN201320135753 U CN 201320135753U CN 203381099 U CN203381099 U CN 203381099U
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Abstract
The utility model discloses a full-electric ultrahigh-speed injection molding machine. The full-electric ultrahigh-speed injection molding machine mainly comprises a mold closing device, an injection device and a rack; the mold closing device and the injection device are positioned on the machine frame; the mold closing device and the rack are the same as those of a conventional electric injection molding machine; the injection device consists of a spray nozzle, a machine barrel, a heating coil, a screw, a feeding hopper, a hopper seat, a moving device, pull rods, a plasticizing device, an injection seat, screw nuts, double injection ball screws, a screw supporting seat and two injection servo motors; the spray nozzle, the machine barrel, the screw, the hopper seat, the plasticizing device, the injection seat and the screw supporting seat are connected in sequence in an axial alignment way; the double injection ball screws are horizontally distributed on the rear part of the plasticizing device; the two injection servo motors are symmetrically arranged on the top of the screw supporting seat; power is transmitted to the ball screws through a toothed synchronous belt and a belt wheel. By the full-electric ultrahigh-speed injection machine, harsh requirements on a single injection motor are reduced; equipment cost is reduced; the full-electric ultrahigh-speed injection machine has the advantages of high response, energy conservation, environment friendliness and the like; and the difficult problems of high equipment energy consumption, speeding difficulty and the like are solved.
Description
Technical field
The utility model relates to a kind of injection moulding machine, belongs to the polymer material molding mechanical field.
Background technology
Macromolecular material, because it has good processing characteristics and serviceability, makes it be widely used in fields such as computer (Computer), communication (Communication) and consumer electronics products (Consumer Electronics).Along with take the demand ultralight, ultra-thin, the ultraprecise plastic member that consumer electronics are representative, constantly increase, for meeting forming requirements, the injection molding apparatus that exploitation has superelevation injection speed and a higher injection pressure has become the focus of researcher and business circles.
In general, the injection screw pace reach 800mm/s or more than, be called ultrahigh speed injection.With respect to traditional injection mo(u)lding, the ultrahigh speed injection mo(u)lding has unique shaping characteristics such as high speed and high pressure.Polymer melt is often thin and too fast cooling due to wall, and ultrahigh speed is injected with superfast injection speed and higher injection pressure, makes melt fluid ability in die cavity improve, thereby meets the forming requirements of ultra-thin goods.The ultrahigh speed injection requires injection molding apparatus to have very high response speed and control accuracy, and injection device can provide enough energy to realize at short notice the screw rod speed-raising.Ultrahigh speed injection moulded products wall thickness can reach 0.1mm, and the ratio of length of flow/wall thickness is up to 400:1.
The ultrahigh speed injection machine is due to its unique advantage, and since invention, development rapidly.At first, the ultrahigh speed injection machine is realized by hydraulic energy-accumulating.Fluid pressure type ultrahigh speed injection machine need to be equipped with jumbo external accumulator and large displacement hydraulic pump, and the energy discharged by accumulator is realized the ultrahigh speed injection.But fluid pressure type ultrahigh speed injection machine has the shortcomings such as energy consumption is large, volume is large, response speed is low, restricts its development.Given this, all-electric ultrahigh speed injection machine has been subject to attention gradually.Originally, Japanese Fanuc company is by the injection of linear electric motors drive screw, but manufacture difficulty is large, and cost is high, is unfavorable for industrialization.After this, all-electric ultrahigh speed injection machine drives and realizes ultrahigh speed injection by heavy-duty motor, and injection speed can be up to 2000mm/s, have control accuracy high, respond the advantages such as rapid, but it has proposed harsh requirement to injecting motor and ball-screw.
Patent 200910093523.4 discloses a kind of ultrahigh speed injection device.This device has been equipped with the speedup spring in injection cylinder, utilizes spiro rod plasticizing to retreat spring-compressed, when to be injected, and the injection cylinder oil-feed, spring discharges, and with the elastic potential energy fluid,matching pressing system of spring, lead-screw is injected forward.This device solves the problem of hydraulic system response and screw rod moment speed-raising, saved external accumulator, simplified equipment mechanism, reduced the requirement to servomotor and ball-screw, and reduced cost.
Engel company has proposed melt expansion injection (X-MELT) technology, and by injecting front precommpression polymer melt, the expansion by the compression melt when injection completes the ultrahigh speed injection.But this ultrahigh speed injection technique, need to be equipped with a whole set of control appliance, needs in addition to equip the controlled needle-valve of high pressure, relates to the technical problem of front-end control, technical difficulty is large.
The Japanology personnel have proposed weight drop formula ultrahigh speed injection molding forming method.Utilize the gravitional force of weight drop to change into the driving-energy of injection, realize the ultrahigh speed injection.Fall to clashing into injection ram by weight, can realize at short notice the injection device speed-raising, but the wear problem of device is difficult to solve.
The utility model content
A kind of all-electric ultrahigh speed injection machine of the present utility model is realized the ultrahigh speed injection by the motor drive screw.The purpose of this utility model is to solve technical barrier and the defect that existing ultrahigh speed injection machine exists, and the all-electric ultrahigh speed injection machine of a kind of high response, high control precision, high performance-price ratio is provided.
For achieving the above object, the utility model by the following technical solutions: a kind of all-electric ultrahigh speed injection machine mainly is comprised of mold closing mechanism, injection device and frame.Mold closing mechanism and injection device are positioned on frame, and mold closing mechanism is identical with conventional electric injection molding machine with frame; Injection device is comprised of nozzle, machine barrel, heating collar, screw rod, loading hopper, hopper, mobile device, pull bar, plasticizing apparatus, injection seat, feed screw nut, double injection ball-screw, leading screw supporting seat, two injection servomotors; Nozzle, machine barrel, screw rod, hopper, plasticizing apparatus, injection seat are connected along axial alignment successively with the leading screw supporting seat; Penetrate platform and be fixed on frame, injection device is arranged on to be penetrated on platform, and can do the motion of phase correlation platform under the control of mobile device, and loading hopper is arranged on hopper, and screw rod is positioned at machine barrel, and heating collar is wrapped in outside machine barrel; Hopper, injection seat and leading screw supporting seat are connected and fixed by four pull bar symmetries; Plasticizing apparatus is comprised of plasticizing motor, plasticizing tooth form synchronous belt and belt wheel, and the plasticizing motor is fixed on injection seat, and screw rod tail is fixedly connected with belt wheel, and while realizing plasticizing, screw rod rotatablely moves; Double injection ball-screw horizontal distribution is at the plasticizing apparatus rear portion, and the axis of ball-screw and the axis of screw rod are in same plane, and an end of ball-screw is connected with feed screw nut, and the other end is connected with the injection belt wheel; Two injection servomotors are arranged symmetrically with the top of leading screw at supporting seat, by tooth form synchronous belt and belt wheel, power are transported on ball-screw.
A kind of all-electric ultrahigh speed injection device for injection molding machine of the utility model is the compound driving of bi-motor, two injection servomotor symmetries are arranged on leading screw supporting seat afterbody, by two groups of injection tooth form synchronous belts and belt wheel drive ball-screw, two injection servomotors drive simultaneously, thereby realize the ultrahigh speed injection.
A kind of all-electric ultrahigh speed injection device for injection molding machine of the utility model is by the driven by servomotor ball-screw, and feed screw nut is arranged on injection seat.During injection, servomotor is transported to power on ball-screw by tooth form synchronous belt and belt wheel, ball-screw by with being connected of feed screw nut, change into rectilinear motion rotatablely moving.Thus, ball-screw promotes injection seat and advances, thereby makes screw rod complete action of injection.
A kind of all-electric ultrahigh speed injection device for injection molding machine of the utility model requires two injection servomotors to have good synchronism, can drive the ball-screw rotation when guaranteeing to inject simultaneously, and unbalance loading does not occur.In addition, require injection device that enough rigidity is arranged, guarantee that two ball-screws normally move and avoid unnecessary wearing and tearing, during injection, injection seat is mobile smooth-going between pull bar, and the resistance of motion is little.
A kind of all-electric ultrahigh speed injection machine of the utility model compared with prior art, by the compound driving of bi-motor, two common drive screw injections of servomotor, replace powerful linear electric motors, reduce the harsh requirement to single injecting motor, greatly reduced the cost of equipment.In addition, injection device by brand-new design, not only make it there is the advantages such as high responsiveness, energy-conserving and environment-protective, and the difficult problems such as the energy consumption that has solved fluid pressure type ultrahigh speed injection machine is large, speed-raising difficulty, the caused technical barriers such as the controlled needle-valve of injection (X-MELT) front end high of also having avoided being expanded by melt.
The accompanying drawing explanation
Fig. 1 is the schematic diagram of a kind of all-electric ultrahigh speed injection machine of the utility model.
Fig. 2 is the injection device schematic diagram of a kind of all-electric ultrahigh speed injection machine of the utility model.
Fig. 3 is the schematic diagram of the injection device drive part of a kind of all-electric ultrahigh speed injection machine of the utility model.
In figure: 1-mold closing mechanism, 2-injection device, 3-frame, 4-nozzle, the 5-machine barrel, 6-heating collar, 7-screw rod, 8-mobile device, the 9-hopper, the 10-loading hopper, 11-plasticizing tooth form synchronous belt and belt wheel, 12-plastifies motor, the 13-injection seat, the 14-feed screw nut, 15-injects ball-screw, 16-pull bar, 17-leading screw supporting seat, 18-injects servomotor, 19-injection tooth form synchronous belt and belt wheel, 20-penetrates platform, 21-plasticizing apparatus, 22-pressure sensor.
The specific embodiment
As shown in Figure 1, a kind of all-electric ultrahigh speed injection machine of the utility model, mainly be comprised of mold closing mechanism 1, injection device 2 and frame 3, and mold closing mechanism 1 and injection device 2 are positioned on frame 3.
As shown in Figure 2, injection device 2 is comprised of nozzle 4, machine barrel 5, heating collar 6, screw rod 7, loading hopper 10, hopper 9, mobile device 8, pull bar 16, plasticizing apparatus 21, injection seat 13, feed screw nut 14, double injection ball-screw 15, leading screw supporting seat 17, two injection servomotors 18; Nozzle 4, machine barrel 5, screw rod 7, hopper 9, plasticizing apparatus 21, injection seat 13 are connected along axial alignment successively with leading screw supporting seat 17; Penetrate platform 20 and be fixed on frame 3, injection device 2 is arranged on to be penetrated on platform 20, and can do 20 motions of phase correlation platform under the control of mobile device 8, and loading hopper 10 is arranged on hopper 9, and screw rod 7 is positioned at machine barrel 5, and heating collar 6 is wrapped in outside machine barrel 5; Hopper 9, injection seat 13 and leading screw supporting seat 17 are connected and fixed by four pull bar 16 symmetries; Plasticizing apparatus 21 is comprised of plasticizing motor 12, plasticizing tooth form synchronous belt and belt wheel 11, and plasticizing motor 12 is fixed on injection seat 13, and screw rod 7 afterbodys are fixedly connected with plasticizing belt wheel 11, and while realizing plasticizing, screw rod 7 rotatablely moves; Double injection ball-screw 15 horizontal distribution are at plasticizing apparatus 21 rear portions, and the axis of the axis of ball-screw 15 and screw rod 7 coexists in a plane, and an end of ball-screw 15 is connected with feed screw nut 14, and the other end is connected with injection belt wheel 19; Two injection servomotors 18 are arranged symmetrically in the top of leading screw supporting seat 17, by tooth form synchronous belt and belt wheel 19, power are transported on ball-screw 15.
As shown in Fig. 3, two ball-screws 15 are symmetrical, and two injection servomotors 18 drive ball-screw 15 by tooth form synchronous belt and belt wheel 19 respectively, and feed screw nut 14 is arranged on injection seat 13.During injection, injection servomotor 18 is transported to power on ball-screw 15 by tooth form synchronous belt and belt wheel 19, ball-screw 15 by with being connected of feed screw nut 14, change into rectilinear motion rotatablely moving.Thus, ball-screw 15 promotes injection seat 13 and advances on 16, pull bar, realizes action of injection.
The injection device 2 of a kind of all-electric ultrahigh speed injection machine of the utility model requires two injection servomotors 18 to have good synchronism, can drive ball-screw 15 rotations when guaranteeing to inject simultaneously, and unbalance loading does not occur.In addition, require injection device 2 that enough rigidity is arranged, guarantee the normal of two ball-screw 15 operations and avoid unnecessary wearing and tearing, during injection, injection seat 13 is smooth-going in 16 movements of pull bar, and the resistance of motion is little.
In the preformed stage of cycle period, plasticizing motor 12 starts, drive screw rod 7 rotation plasticizings, now, be positioned at the pressure sensor 22 detected pressures signals of screw rod 7 ends and feed back to control system for shot machine, two injection servomotors 18 are according to the pressure signal reverse starting, drive 15 rotations of injection ball-screw, and the drive screw 7 that retreats by injection seat 13 retreats.After plasticizing finishes, control system for shot machine sends injection signal, double injection servomotor 18 starts simultaneously, by injection tooth form synchronous belt and belt wheel 19 transmission of power to transmission ball-screw 13, drive ball-screw 13 rotations, make screw rod 7 promotion melts enter at a high speed die cavity and realize ultrahigh speed injection moulding.
Claims (4)
1. an all-electric ultrahigh speed injection machine, mainly be comprised of mold closing mechanism, injection device and frame, and mold closing mechanism and injection device are positioned on frame, and mold closing mechanism, frame are identical with conventional electric injection molding machine; It is characterized in that: injection device is comprised of nozzle, machine barrel, heating collar, screw rod, loading hopper, hopper, mobile device, pull bar, plasticizing apparatus, injection seat, feed screw nut, double injection ball-screw, leading screw supporting seat, two injection servomotors; Nozzle, machine barrel, screw rod, hopper, plasticizing apparatus, injection seat are connected with leading screw supporting seat axial alignment successively; Penetrate platform and be fixed on frame, injection device is arranged on to be penetrated on platform, and can do the motion of phase correlation platform under the control of mobile device, and loading hopper is arranged on hopper, and screw rod is positioned at machine barrel, and heating collar is wrapped in outside machine barrel; Hopper, injection seat and leading screw supporting seat are connected and fixed by four pull bar symmetries; Plasticizing apparatus is comprised of plasticizing motor, plasticizing tooth form synchronous belt and belt wheel, and the plasticizing motor is fixed on injection seat, and screw rod tail is fixedly connected with belt wheel, and while realizing plasticizing, screw rod rotatablely moves; Double injection ball-screw horizontal distribution is at the plasticizing apparatus rear portion, and the axis of ball-screw and the axis of screw rod coexist in a plane, and an end of ball-screw is connected with feed screw nut, and an end is connected with the injection belt wheel; Two injection servomotors are arranged symmetrically with the top of leading screw at supporting seat, by tooth form synchronous belt and belt wheel, power are transported on ball-screw.
2. a kind of all-electric ultrahigh speed injection machine according to claim 1, it is characterized in that: injection device is the compound driving of bi-motor, two injection servomotor symmetries are arranged on leading screw supporting seat top, by two groups of injection tooth form synchronous belts and belt wheel, the drive ball-screw, two injection servomotors drive simultaneously, thereby realize the ultrahigh speed injection.
3. a kind of all-electric ultrahigh speed injection machine according to claim 2, it is characterized in that: injection device is by the driven by servomotor ball-screw, feed screw nut is arranged on injection seat, servomotor is transported to power on ball-screw by tooth form synchronous belt and belt wheel, ball-screw by with being connected of feed screw nut, change into rectilinear motion rotatablely moving.
4. a kind of all-electric ultrahigh speed injection machine according to claim 2, it is characterized in that: two injection servomotors of injection device have synchronism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320135753.4U CN203381099U (en) | 2013-03-24 | 2013-03-24 | Full-electric ultrahigh-speed injection molding machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320135753.4U CN203381099U (en) | 2013-03-24 | 2013-03-24 | Full-electric ultrahigh-speed injection molding machine |
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| CN203381099U true CN203381099U (en) | 2014-01-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201320135753.4U Expired - Fee Related CN203381099U (en) | 2013-03-24 | 2013-03-24 | Full-electric ultrahigh-speed injection molding machine |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103182769A (en) * | 2013-03-24 | 2013-07-03 | 北京化工大学 | All-electric superspeed injection machine |
| CN105599258A (en) * | 2016-02-05 | 2016-05-25 | 宁波长飞亚塑料机械制造有限公司 | Electric driven injection molding machine and protection method for screw in storing process thereof |
| CN108340533A (en) * | 2018-01-03 | 2018-07-31 | 卓苏旭 | A kind of screw injection melding injection molding machine |
-
2013
- 2013-03-24 CN CN201320135753.4U patent/CN203381099U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103182769A (en) * | 2013-03-24 | 2013-07-03 | 北京化工大学 | All-electric superspeed injection machine |
| CN105599258A (en) * | 2016-02-05 | 2016-05-25 | 宁波长飞亚塑料机械制造有限公司 | Electric driven injection molding machine and protection method for screw in storing process thereof |
| CN108340533A (en) * | 2018-01-03 | 2018-07-31 | 卓苏旭 | A kind of screw injection melding injection molding machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140108 Termination date: 20160324 |
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| CF01 | Termination of patent right due to non-payment of annual fee |