CN204054545U - A kind of polymeric ultrasonic plasticizing micro injecting device - Google Patents
A kind of polymeric ultrasonic plasticizing micro injecting device Download PDFInfo
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- CN204054545U CN204054545U CN201420482455.7U CN201420482455U CN204054545U CN 204054545 U CN204054545 U CN 204054545U CN 201420482455 U CN201420482455 U CN 201420482455U CN 204054545 U CN204054545 U CN 204054545U
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- 238000002347 injection Methods 0.000 claims abstract description 94
- 239000007924 injection Substances 0.000 claims abstract description 94
- 239000004014 plasticizer Substances 0.000 claims abstract description 65
- 238000000605 extraction Methods 0.000 claims abstract description 8
- 239000000203 mixture Substances 0.000 claims abstract description 3
- 210000003128 head Anatomy 0.000 claims description 18
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 210000000744 eyelid Anatomy 0.000 claims description 2
- 239000000463 material Substances 0.000 abstract description 30
- 230000000694 effects Effects 0.000 abstract description 14
- 238000000034 method Methods 0.000 abstract description 11
- 238000012546 transfer Methods 0.000 abstract description 2
- 238000000520 microinjection Methods 0.000 description 6
- 230000004927 fusion Effects 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000000465 moulding Methods 0.000 description 3
- 229920000642 polymer Polymers 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 229920006351 engineering plastic Polymers 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000155 melt Substances 0.000 description 2
- 125000003003 spiro group Chemical group 0.000 description 2
- 238000002679 ablation Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 230000010358 mechanical oscillation Effects 0.000 description 1
- 238000000048 melt cooling Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- -1 reduce viscosity Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000002463 transducing effect Effects 0.000 description 1
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- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
The utility model discloses a kind of ultrasonic plasticizing micro injecting device, by ultrasonic wave plasticizing system, injecting systems and feeding system composition, and gas extraction system is set on injection piston (17), be arranged on plasticiser supporter (5) by one or more ultrasonic wave plasticization unit in ultrasonic plasticizing chamber, ultrasonic wave plasticization unit is connected plasticiser (6) by ultrasonic wave transducer element with vibration-transmitting plate (4) and forms, and plasticiser is arranged in the endoporus of plasticiser supporter; Utilize ultrasonic wave transducer element to make the ultrasonic vibration that plasticiser produces, material produces frictional heat effect and ultrasonic cavitation effect plastifying material.The die cavity adopting the gap between the axial notch of plasticiser and plasticiser to form is as plasticizing chamber, and transfer of ultrasonic energy area is large, and plasticizing efficiency is high; Utilize injecting motor (25) to drive injection piston injection, injection piston motional inertia is little, plastifies air in chamber by outside gas extraction system discharge side, good exhaust effect in injection process.
Description
Technical field
The utility model relates to engineering plastics and precise micro injection technique field, particularly relates to a kind of polymeric ultrasonic plasticizing micro injecting device.
Background technology
The development of adjoint engineering plastics and precise micro injection technique, the micro-structure metal part that the high accuracy micro part utilizing the efficient modes of production such as injection to produce just progressively replaces the traditional processing and manufacturing mode of employing to produce.Micro-injection adopts trace plasticizing and precise injection usually, injection volume even reaches several microgram rank, plasticizing quality requires high, in forming process, melt cooling is fast, injection resistance is large, filling difficulty, traditional spiro rod plasticizing and injection technique, by the restriction of screw diameter lower limit and check ring, plasticizing and the precise injection of microdose cannot be completed; Plunger plasticizing and injection system, adopt mode of heating plasticizing polymerization thing, the homogenieity of melt is difficult to the requirement meeting micro injection molding, and adopts the mode of spiro rod plasticizing/plunger injection, usually there is the problems such as device complex control difficulty.
The polymer of vibration of ultrasonic wave plasticizing has good homogenieity, is applicable to very much and micro injection molding.But the restriction of the technology of being subject to, ultrasonic wave is limited to as a kind of detection means on-line monitoring fusant density in the application of polymer forming art usually, or by ultrasonic pressing nozzle place, mould to improve mobile performance and the filling rate of melt, disclosed in Chinese patent 201210052745.3 a kind of ultrasonic vibration with vacuumize integrated microinjection mold and forming method.Using less for the research of ultrasonic wave directly as plasticizing apparatus, Chinese patent 201310121160.7 is disclosed a kind of without screw rod ultrasonic wave fusion plastification polymer trace Coinjection molding apparatus and forming method, ultrasonic wave output is made injection piston by it, rely on the end contact material of plunger, plunger does high frequency axial vibration, plastifying material.But this plasticizing apparatus, its plasticizing power is by the restriction of plunger face area, and plunger end face is little, then energy transferring area is little, and fusion time is long; It is large that face area greatly then plastifies cross section, chamber, not easily realizes the plasticizing of microdose, injects resistance large during injection; Adopt ultrasonic wave output directly as injection piston, inject resistance during injection and can pass to ultrasonic transducer; During injection, overshot ripple transducing head is together with injection piston motion, and motional inertia is large, and be unfavorable for realizing high speed injection, and injection speed is higher, melt viscosity is less, more easily ensures filling rate; Plasticization unit is without exhaust apparatus, and melt easily produces ablation phenomen.
Summary of the invention
The technical problems to be solved in the utility model is to provide that a kind of transfer of ultrasonic energy area is large, and plasticizing efficiency is high, and the polymeric ultrasonic easily realizing the plasticizing of micro-dosage and high speed and precision injection plastifies micro injecting device, during injection on ultrasonic generator without impact.
The utility model is achieved through the following technical solutions:
A kind of polymeric ultrasonic plasticizing micro injecting device, by ultrasonic wave plasticizing system, injecting systems and feeding system composition, and gas extraction system is set on injection piston 17, described ultrasonic plasticizing chamber, be arranged on plasticiser supporter 5 by one or more ultrasonic wave plasticization unit, described ultrasonic wave plasticization unit is connected plasticiser 6 by ultrasonic wave transducer element with vibration-transmitting plate 4 and forms, soket head cap screw 8 connects machine barrel 1 and vibration-transmitting plate 4 through ultrasonic wave transducer element, and screw 7 connects vibration-transmitting plate 4 and plasticiser 6 through plasticiser eyelid retractor 7;
Described plasticiser 6 is arranged in the endoporus of plasticiser supporter 5, plasticiser 6 be axially arranged with arc groove, be provided with gap between plasticiser 6;
Described gas extraction system comprises injection piston 17, injection piston 17 is arranged lower endoporus 1701 and upper endoporus 1702, and stopper head 172 is separate piece, is provided with spring 171 bottom lower endoporus 1701, and injection piston 17 side is provided with pin 173.
Described ultrasonic wave plasticization unit is separated by insulated ring 11, and the internal diameter of insulated ring 11 equals the external diameter of vibration-transmitting plate 4.
Described ultrasonic wave transducer element is by the two-layer or piezoelectric patches 2 of multilayer and the electrode slice 3 of the identical number of plies is overlapping forms, and the cross sectional shape of piezoelectric patches 2 is watt shape or rectangle.
The internal diameter of the inner chamber that described vibration-transmitting plate 4 is formed is greater than the external diameter of plasticiser supporter 5 cylindrical section, the radius of curvature of the arc groove on described plasticiser 6 equals the radius of injection piston 17, and the intracavity diameter of the groove formation of every block plasticiser 6 equals the diameter of injection piston 17.
The diameter of the lower endoporus 1701 of described injection piston 17 is greater than the diameter of endoporus 1702, injection piston 17 is provided with wing plate 1703, the thickness of wing plate 1703 equals the gap width between two pieces of plasticisers 6, width between wing plate 1703 equals the internal diameter of plasticiser supporter 5, the upper end of wing plate 1703 is provided with circular hole and is communicated with upper endoporus 1702, be provided with circular hole at injection piston 17 perpendicular to the radial direction of wing plate 1703, in circular hole, be provided with pin 173.
The stopper head 172 of described injection piston 17 is separate piece, stopper head 172 head is provided with the conical surface, afterbody is the cylindrical section that one section of diameter is less than lower endoporus 1701, described cylindrical section both sides are provided with platform, the land lengths of side equals the length of cylindrical section, the length of opposite side platform is less than the length of cylindrical section, and stopper head 172 cylindrical section inserts lower endoporus 1701, compared with the side of short platform towards pin 173.
Described injecting systems is by injecting motor 25 connection wire rod 21, feed screw nut 19 is enclosed within leading screw 21, guide plate 20 is fixed on feed screw nut 19, and be enclosed within guide rod 15, propeller 18 one end is fixed on feed screw nut 19, the other end connects injection piston 17, and propeller 18 adopts hollow structure, and its internal diameter is greater than the diameter of leading screw 21.
Adopt the injecting method of above-mentioned polymeric ultrasonic plasticizing micro injecting device as follows:
Injecting motor 25 drives injection piston 17 to rise and leaves plasticizing chamber fixed form 16, by feeding system to feed in ultrasonic plasticizing chamber, open ultrasonic wave plasticizing system, material melts plastifies by the frictional heat effect utilizing ultrasonic wave to produce in material and ultrasonic cavitation effect, after having plastified, injecting motor 25 drives injection piston 17 descending, air in plasticizing chamber is discharged in descending process by the gas extraction system of injection piston 17 head, stopper head 172 contacts material, and material is clamp-oned mold cavity, carry out pressurize, pressurize completes, and (dwell time need according to material variety, injection volume, the factors such as mould are determined, scope cannot be determined), rear injection piston 17 rises, complete once ultrasonic plasticizing and injection.
Described ultrasonic plasticizing chamber plastifying material, be utilize the gap between the groove of plasticiser 6 and plasticiser 6 to form die cavity as plastifying die cavity, producing piezo-electric effect by ultrasonic wave transducer element makes plasticiser 6 along the radial vibration of machine barrel 1, material with fierce frictional fusion on the tactile face of plasticiser 6, and produce ultrasonic cavitation effect, material is plastified fast.
The exhaust process of the gas extraction system of described injection piston 17 comprises, the gap between plasticiser 6 is embedded by the wing plate 1703 of injection piston 17, ensure the air-tightness between injection piston 17 and plasticizing chamber, penetrate between post plunger 17 and stopper head 172 and have space, make in the descending process of injection piston 17, ensure before the conical surface of stopper head 172 contacts material completely by spring 171 and pin 173, the gas in plasticizing chamber is discharged to the top of wing plate 1703 by lower endoporus 1701 and upper endoporus 1702.
The utility model, relative to prior art, has following advantage and effect:
Material plasticizing chamber is made up of ultrasonic plasticiser, and the contact area of material and ultrasonic energy output is large, and the transmission area of ultrasonic energy is large, and plasticizing efficiency is high; Contrast end contact plasticizing mode, material cylinder is less, is conducive to resistance when reducing injection; Axially can establish multiple ultrasonic wave plasticization unit in ultrasonic plasticizing chamber, can open the plasticization unit of sufficient amount according to the height of plastifying material, capacity usage ratio is high; Adopt injecting motor to be injected by the injection piston that feed screw nut width Direct driver is special, motional inertia is little, can reach higher plunger motion speed, improve the shear rate of material during injection, reduce viscosity, injection resistance is reduced, under less injection pressure, ensures filling rate; Injection piston head exhaust system structure is simple, by the spring for selecting different elastic force in injection piston head, can realize reliable exhaust effect during plasticizing different material.
Accompanying drawing explanation
Fig. 1 is the structural map of the utility model specific embodiment.
Fig. 2 is the structural map of ultrasonic plasticizing chamber first embodiment.
Fig. 3 is the A-A sectional view of Fig. 2.
Fig. 4 is the B-B sectional view of Fig. 2.
Fig. 5 is the structural map of injection piston.
Fig. 6 is the D-D sectional view of Fig. 5.
Fig. 7 is the left view of injection piston.
Fig. 8 is the enlarged drawing of partial view C in Fig. 7.
Fig. 9 is the structural map of ultrasonic plasticiser second embodiment.
Figure 10 is the structural map of ultrasonic plasticiser the 3rd embodiment.
In figure, each label is: 1-machine barrel, 2-piezoelectric patches, 3-electrode slice, 4-vibration-transmitting plate, 5-plasticiser supporter, 6-plasticiser, 7-screw, 8-soket head cap screw, 9-spring washer, 10-insulating sleeve, 11-insulated ring, 12-nozzle, 13-plasticizing chamber drive end bearing bracket, fixed form before 14-, 15-guide rod, 16-plasticizing chamber fixed form, 17-injection piston, 18-propeller, 19-feed screw nut, 20-guide plate, 21-leading screw, 22-shaft coupling, 23-thrust bearing, 24-nut, 25-injecting motor, 26-motor connecting base, 27-motor fixed form, 28-hopper, 29-passage, 30-hopper holder.
Detailed description of the invention
Below in conjunction with specific embodiment, the utility model is more specifically described in detail.
Embodiment
Fig. 1 is the structural map of the utility model specific embodiment, ultrasonic plasticizing system, by the machine barrel 1 of ultrasonic plasticizing chamber, one end connects plasticizing chamber drive end bearing bracket 13, be fixed on front fixed form 14 by plasticizing chamber drive end bearing bracket 13 again, be provided with nozzle 12 in plasticizing chamber drive end bearing bracket 13, the other end of machine barrel 1 is fixed on plasticizing chamber fixed form 16, and plasticizing chamber fixed form 16 is provided with and plastifies the identical through hole in cross section, chamber with ultrasonic plasticizing chamber.The stopper head of injection piston 17 is inserted in the plasticizing chamber of ultrasonic plasticizing chamber, and afterbody is connected with propeller 18; Propeller 18 is hollow structure, and diameter of bore is greater than the diameter of leading screw 21, and propeller 18 one end is provided with flange, and flange is connected with feed screw nut 19 by screw; Guide plate 20 is fixed on feed screw nut 19, and guide plate 20, and to be slided along guide rod 15 by circle hole sleeve on guide rod 15; Leading screw 21 connects injecting motor 25 by shaft coupling 22, is provided with thrust bearing 23 between shaft coupling 22 and motor fixed form 27, and injecting motor 25 is fixed on motor connecting base 26, and motor connecting base 26 is fixed by screws on motor fixed form 27.Front fixed form 14 and plasticizing chamber fixed form 16, motor fixed form 27 are linked together by guide rod 15, and end is fixed by nut 24.The discharging opening of hopper 28 connects passage 29, and what passage 29 pointed to plasticizing chamber fixed form 16 enters material through hole, and hopper 28 is located on hopper holder 30, and hopper holder 30 is connected with plasticizing chamber fixed form 16 by screw or guide rail.
Fig. 2,3,4 is the structural map of first embodiment of the ultrasonic plasticizing chamber of the present invention, and machine barrel 1 two ends are provided with flange; Plasticiser supporter 5 inserts in machine barrel 1, plasticiser supporter 5 one end is provided with the external diameter flange identical with the flange outside diameter of machine barrel 1, and be connected by the flange of screw with machine barrel 1, the other end is provided with the external diameter flange identical with machine barrel 1 internal diameter, and coordinates with machine barrel 1 inwall.Be axially arranged with two ultrasonic wave plasticization units along plasticiser supporter 5, and separated by insulated ring 11.Screw 7 connects vibration-transmitting plate 4 and plasticiser 6 through plasticiser supporter 5, and the internal diameter of the inner chamber of vibration-transmitting plate 4 formation of upper and lower two watts of shapes is greater than the external diameter of plasticiser supporter 5 cylindrical section.Ultrasonic wave plasticization unit is made up of the vibration-transmitting plate 4 of ultrasonic wave transducer element and watt shape and plasticiser 6, ultrasonic wave transducer element by upper and lower two groups independently two-layer watt of shape piezoelectric patches 2 and two-layer electrode slice 3 is overlapping forms, soket head cap screw 8 is through piezoelectric patches 2 electrode slice 3, connect machine barrel 1 and vibration-transmitting plate 4, overlap between soket head cap screw 8 and ultrasonic wave transducer element and have insulating sleeve 10, spring washer 9 is provided with between soket head cap screw 8 and machine barrel 1, spring washer 9 pressurized but not compacted, make vibration-transmitting plate 4 along the radial tension of machine barrel 1, vibration-transmitting plate 4 and inverting element are adjacent to, by the transmission of screw 7, the inwall of the outer wall of plasticiser 6 and plasticiser supporter 5 is adjacent to.
Referring to Fig. 5, injection piston 17 head is provided with the different lower endoporus 1701 of two sections of diameters and upper endoporus 1702, the race diameter of spring 171 is greater than the diameter of endoporus 1702, be less than the diameter of lower endoporus 1701, the head of stopper head 172 is the taper matched with the endoporus conical surface of nozzle 12, afterbody is the cylindrical section that one section of diameter is slightly less than lower endoporus 1701, and stopper head 172 afterbody is inserted in lower endoporus 1701; Injection piston 17 afterbody is provided with one section of shaft shoulder 1704 and thread segment 1705, and injection piston 17 is connected with propeller 18 by thread segment 1705.Referring to Fig. 6, the head both sides of injection piston 17 are provided with wing plate 1703, the thickness of wing plate equals the gap width between two pieces of plasticisers 6, width between two wing plates equals the internal diameter of plasticiser supporter 5, make the head cross sectional shape of injection piston 17 consistent with the cross sectional shape in the plasticizing chamber of ultrasonic wave plasticizing chamber, ensure air-tightness during injection.Referring to Fig. 7, stopper head 172 afterbody cylindrical section is provided with two sections of platforms, one section of land lengths equals cylindrical section length, another section of land lengths is less than cylindrical section length, injection piston 17 head side is provided with the circular hole being communicated with lower endoporus 1701, circular hole is axially perpendicular to wing plate 1703, pin 173 is provided with in circular hole, pin withstands on stopper head 172 afterbody compared with on the end face of short platform, make stopper head 172 endoporus 1701 under unlikely disengaging under the elastic force of spring 171, after the axis along injection piston 17 of upper endoporus 1702 extends a segment distance, through hole is offered along injection piston 17 radial direction, described radial direction through hole is axially parallel to the width of wing plate 1703, the position of radial direction through hole is higher than the height of wing plate 1703.Referring to Fig. 8, for the enlarged drawing of the partial view C in Fig. 7, when the tail end of stopper head 172 to be stuck in the head of injection piston 17 by the acting in conjunction of spring 171 and pin 173, the end face of tapered end face distance injection piston 17 head of stopper head 172 has a segment distance, during injection, the gas plastified in chamber can along the direction in Fig. 8 shown in arrow, enter into lower endoporus 1701 by the platform of stopper head cylindrical section, then enter into endoporus 1702 and discharge.
During ultrasonic plasticizing micro injecting device work, first screw mandrel 21 is driven to rotate by injecting motor 25, under the guide effect of guide plate 20, feed screw nut 19 rises, propeller 18 is made to drive injection piston 17 to rise, when stopper head 172 leaves the upper surface of plasticizing chamber fixed form, the material in hopper 28 is entered in the plasticizing chamber of ultrasonic plasticizing chamber by passage 29.Injecting motor 25 starts makes injection piston 17 descending, enters plasticizing chamber, contacts material and by after material compacting by stopper head 172, and injecting motor 25 starts to be made injection piston 17 rise to leave plasticizing chamber.According to the height of material in plasticizing chamber, determine to meet the number that whole material section can receive the ultrasonic wave plasticization unit of ultrasonic energy, start ultrasonic wave plasticization unit.During work, ultrasonic wave plasticization unit inputs the high-frequency ac signal of telecommunication by two-layer electrode slice 3, two-layer piezoelectric patches 2 produces piezo-electric effect, the radial dimension of piezoelectric patches is changed, produce high-frequency mechanical vibration, i.e. ultrasonic wave, mechanical oscillation are delivered on plasticiser 6 by vibration-transmitting plate 4, make plasticiser 6 make dither along the radial direction of machine barrel 1, utilize on plasticiser 6 and material contact surface and produce mechanical friction fuel factor and ultrasonic cavitation effect, make material fusion plastification quickly and efficiently.After having plastified, injecting motor 25 starts, make injection piston 17 descending, enter in ultrasonic wave plasticizing chamber, matched in clearance between the wing plate 1703 of injection piston 17 head and plasticiser 6, ensure sealing during injection, when injection piston 17 is descending, the gas in plasticizing chamber is discharged on wing plate 1703 by lower endoporus 1701 and upper endoporus 1702 by the platform on the cylindrical section of stopper head 172 afterbody.When stopper head 172 contacts material, spring 171 compresses, the Distance Shortened of the end face of stopper head 172 and injection piston 17, by mating the elastic force of spring 171, when making the conical surface of stopper head 172 contact material completely, the end face of stopper head 172 just with the end contact of injection piston 17, make outside the complete discharge side of the gas in plasticizing chamber.Injection piston 17 continues descending, and by the melt extrusion in plasticizing chamber, melt is injected in the die cavity of mould by nozzle, inject rear injection piston plastifying in chamber to stay for some time and has carried out pressurize.After pressurize completes, plasticizing motor 25 starts, and makes injection piston 17 increase and enters next injection cycle.
Fig. 9 is the structural map of second embodiment of ultrasonic plasticizing chamber, the structure of its operation principle and plasticiser 6 is identical with first embodiment, with first embodiment unlike, machine barrel 1 adopts square body, the cross section of piezoelectric patches 2 and vibration-transmitting plate 4 is rectangle, and assembling mode and first embodiment of plasticiser supporter 5 and machine barrel are consistent.The advantage of comparative example 1 is, piezoelectric patches adopts template, and easy processing and manufacturing, the screw hole on ultrasonic wave plasticizing chamber easily locates processing.
It is the structural map of the 3rd embodiment of ultrasonic plasticizing chamber referring to Figure 10, its operation principle is identical with first embodiment with assembly relation with the structure of each part of plasticizing chamber, with first embodiment unlike, radial direction along machine barrel 1 is provided with four groups of ultrasonic wave transducer elements and vibration-transmitting plate 4, connects four plasticisers 6 respectively.Adopt radial arrangement many groups plasticiser 6, when plasticiser 6 vibrates, the strain of material can be made more to combine in axis direction, make the volume compression of stock column stronger, be conducive to the transmission efficiency improving ultrasonic energy, and two groups of ultrasonic wave transducer elements also can arrange the ac signal inputting different frequency, to obtain different ultrasonic wave interference effect in plasticizing chamber, obtain different plasticizing effects.Adopt radial arrangement two to the structure of ultrasonic plasticizing element and plasticiser, as long as the wing plate of injection piston is increased to two right, and the cross section of injection piston head is consistent with the cross section in plasticizing chamber, same embodiment one can be adopted to adopt identical injection system.
Below by reference to the accompanying drawings specific embodiment of the utility model is elaborated; but the utility model is not limited to above-mentioned embodiment; every employing ultrasonic energy emitter directly forms the various changes that plasticizing chamber is made; the change of ultrasonic wave transducer element and the part section such as machine barrel, vibration-transmitting plate; the change of the number of plies of piezoelectric patches and electrode slice; the change of axial arranged ultrasonic wave plasticization unit quantity; and the change that the radial plasticiser quantity of ultrasonic wave plasticizing chamber etc. is made, all drop within protection domain of the present utility model.
Claims (7)
1. a polymeric ultrasonic plasticizing micro injecting device, by ultrasonic wave plasticizing system, injecting systems and feeding system composition, and gas extraction system is set on injection piston (17), it is characterized in that: described ultrasonic plasticizing chamber, be arranged on plasticiser supporter (5) by one or more ultrasonic wave plasticization unit, described ultrasonic wave plasticization unit is connected plasticiser (6) by ultrasonic wave transducer element with vibration-transmitting plate (4) and forms, soket head cap screw (8) connects machine barrel (1) and vibration-transmitting plate (4) through ultrasonic wave transducer element, screw (7) connects vibration-transmitting plate (4) and plasticiser (6) through plasticiser eyelid retractor (7),
Described plasticiser (6) is arranged in the endoporus of plasticiser supporter (5), plasticiser (6) be axially arranged with arc groove, plasticiser is provided with gap between (6);
Described gas extraction system comprises injection piston (17), injection piston (17) is arranged lower endoporus (1701) and upper endoporus (1702), stopper head (172) is separate piece, be provided with spring (171) bottom endoporus 1701, injection piston (17) side is provided with pin (173).
2. polymeric ultrasonic plasticizing micro injecting device according to claim 1, it is characterized in that: described ultrasonic wave plasticization unit is separated by insulated ring (11), the internal diameter of insulated ring (11) equals the external diameter of vibration-transmitting plate (4).
3. polymeric ultrasonic plasticizing micro injecting device according to claim 1, it is characterized in that: described ultrasonic wave transducer element is by the two-layer or piezoelectric patches (2) of multilayer and the electrode slice (3) of the identical number of plies is overlapping forms, and the cross sectional shape of piezoelectric patches (2) is watt shape or rectangle.
4. polymeric ultrasonic plasticizing micro injecting device according to claim 1, it is characterized in that: the internal diameter of the inner chamber that described vibration-transmitting plate (4) is formed is greater than the external diameter of plasticiser supporter (5) cylindrical section, the radius of curvature of the arc groove on described plasticiser (6) equals the radius of injection piston (17), and the intracavity diameter of the groove formation of every block plasticiser (6) equals the diameter of injection piston (17).
5. polymeric ultrasonic plasticizing micro injecting device according to claim 1, it is characterized in that: the diameter of the lower endoporus (1701) of described injection piston (17) is greater than the diameter of endoporus (1702), injection piston (17) is provided with wing plate (1703), the thickness of wing plate (1703) equals the gap width between two pieces of plasticisers (6), width between wing plate (1703) equals the internal diameter of plasticiser supporter (5), the upper end of wing plate (1703) is provided with circular hole and is communicated with upper endoporus (1702), circular hole is provided with perpendicular to the radial direction of wing plate (1703) at injection piston (17), pin (173) is provided with in circular hole.
6. polymeric ultrasonic plasticizing micro injecting device according to claim 5, it is characterized in that: the stopper head (172) of described injection piston (17) is separate piece, stopper head (172) head is provided with the conical surface, afterbody is the cylindrical section that one section of diameter is less than lower endoporus (1701), described cylindrical section both sides are provided with platform, the land lengths of side equals the length of cylindrical section, the length of opposite side platform is less than the length of cylindrical section, stopper head (172) cylindrical section inserts lower endoporus (1701), compared with the side of short platform towards pin (173).
7. polymeric ultrasonic plasticizing micro injecting device according to claim 1, it is characterized in that: described injecting systems is by injecting motor (25) connection wire rod (21), feed screw nut (19) is enclosed within leading screw (21), guide plate (20) is fixed on feed screw nut (19), and be enclosed within guide rod (15), propeller (18) one end is fixed on feed screw nut (19), the other end connects injection piston (17), propeller (18) adopts hollow structure, and its internal diameter is greater than the diameter of leading screw (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420482455.7U CN204054545U (en) | 2014-08-25 | 2014-08-25 | A kind of polymeric ultrasonic plasticizing micro injecting device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420482455.7U CN204054545U (en) | 2014-08-25 | 2014-08-25 | A kind of polymeric ultrasonic plasticizing micro injecting device |
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| CN204054545U true CN204054545U (en) | 2014-12-31 |
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| CN201420482455.7U Expired - Lifetime CN204054545U (en) | 2014-08-25 | 2014-08-25 | A kind of polymeric ultrasonic plasticizing micro injecting device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104191573A (en) * | 2014-08-25 | 2014-12-10 | 华南理工大学 | Device and method for ultrasonic plasticization and microinjection of polymers |
| CN110103430A (en) * | 2019-05-29 | 2019-08-09 | 中南大学 | The ultrasonic plasticizing system of micro injection molding |
| CN110103401A (en) * | 2019-05-29 | 2019-08-09 | 中南大学 | Ultrasound plasticizing Micro Injection Molding Machines main body and forming method |
-
2014
- 2014-08-25 CN CN201420482455.7U patent/CN204054545U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104191573A (en) * | 2014-08-25 | 2014-12-10 | 华南理工大学 | Device and method for ultrasonic plasticization and microinjection of polymers |
| CN110103430A (en) * | 2019-05-29 | 2019-08-09 | 中南大学 | The ultrasonic plasticizing system of micro injection molding |
| CN110103401A (en) * | 2019-05-29 | 2019-08-09 | 中南大学 | Ultrasound plasticizing Micro Injection Molding Machines main body and forming method |
| CN110103401B (en) * | 2019-05-29 | 2022-03-11 | 中南大学 | Ultrasonic plasticizing micro-injection molding machine main body and molding method |
| CN110103430B (en) * | 2019-05-29 | 2024-01-26 | 中南大学 | Ultrasonic plasticizing system for micro injection molding |
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