CN205705148U - Spiral shell dish and plunger combination formula Coinjection molding apparatus - Google Patents
Spiral shell dish and plunger combination formula Coinjection molding apparatus Download PDFInfo
- Publication number
- CN205705148U CN205705148U CN201620357826.8U CN201620357826U CN205705148U CN 205705148 U CN205705148 U CN 205705148U CN 201620357826 U CN201620357826 U CN 201620357826U CN 205705148 U CN205705148 U CN 205705148U
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- plunger
- cylinder
- injection
- spiral shell
- screw channel
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Abstract
This utility model relates to a kind of spiral shell dish and plunger combination formula Coinjection molding apparatus, including injection cylinder, injection mounting, motor, drive mechanism, stand, radial thrust bearing, hopper, machine barrel, electric heater, Shift cylinder, gear and plunger；Feature is also to include plastifying spiral shell dish, and plasticizing spiral shell dish includes rotating disk and cylinder, is provided with the excircle screw channel of more than three, is provided with the end face screw channel of more than three on the right side of rotating disk on the face of cylinder of rotating disk, the right-hand member of excircle screw channel and end face screw channel UNICOM；Rotating disk and cylinder are provided with centre bore；Machine barrel includes in cylindrical plasticizing chamber and injection tube, and rotating disk is positioned in plasticizing chamber and rotatable, and hopper is arranged on plasticizing chamber, and the left end of excircle screw channel is connected with hopper by radial hole, the right-hand member of end face screw channel UNICOM excircle screw channel and the left end of injection tube；Plunger and injection tube matched in clearance.It has simple and compact for structure, and barrel cleaning is convenient, plastifies, pulverizes and the advantage such as extrusion capability is strong, the good product quality of production.
Description
Technical field
This utility model relates to a kind of spiral shell dish and plunger combination formula Coinjection molding apparatus, is mainly used in macromolecular material
Plasticizing and injection moulding, belong to macromolecular material injection molding technology field.
Background technology
Injection-moulding plastic processing has advantages such as technique is simple, production efficiency is high, product size is accurate, and can be
The goods that in relatively short period of time, one-shot forming profile is more complicated.
Plasticizing injecting device is one of injection forming equipment core texture, and the quality of its performance not only directly influences injection
The problems such as the efficiency of molding, production cost and production environment, but also the quality of injected articles is had conclusive impact.
Present modal plasticizing injecting device has two kinds, first screw plunger type, and it two is reciprocating screw type.
Traditional screw plunger type injection (mo(u)lding) machine, adds a set of only work on plunger injection device and plastifies
Single screw extrusion feeding device, material need to first pass through single spiro rod plasticizing device and plastify, then enter note through check valve
Shoot material cylinder, and when feed quantity reaches variable, plasticized screw stops operating, and injection piston starts injection.
Traditional reciprocating screw type injection (mo(u)lding) machine, screw rod has plasticizing and two functions of injection simultaneously, and screw rod turns round
Material is plastified by motion, the most also to do reciprocal axially-movable and inject, and therefore the complexity of total system is high,
Cost is big, when plasticizing, and moving axially along with screw rod, make melting material form the axial temperature difference being difficult to overcome.
Conventional injection machine also has a common feature, that is, generally all use screw rod to carry out plastifying material, although utilizing spiral shell
Bar plasticizing has its advantage, but for some material, screw rod has the shortcoming that plasticizing, pulverizing and extrusion capability are the strongest.
For conventional injection machine exist problem, explored despite many researcheres, but be all limited only to right
The local that screw rod or plunger are carried out changes, and does not change the basic reason of above-mentioned total system.
In numerous research worker, there is part researcher that vibration is incorporated into plastics forming field, utilize shaking of screw rod
The dynamic impact on material plasticizing extrusion optimizes extrusion process, improves extruded product quality.
Part researcher is also had to utilize the vibration of plunger or piston to reach to optimize plasticizing, extrude and inject the course of processing
Purpose.Foreign literature[1,2]Describe its develop rheology injection (mo(u)lding) machine, polymer melt first under screw acting by expecting
Cylinder injects vibration cavity, the direction of switching valve, and is applied vibration by piston.Then mold cavity is injected by piston, same in pressurize
Time, continue to make melt to be under pressure before mould gate freezes effect of vibration.
In sum, in the existing research that injection, extrusion introducing are vibrated, have plenty of by screw rod is applied vibration
Optimize injection, extrusion, have plenty of by applying vibration to not being arranged on the plunger in same machine barrel or piston with screw rod,
Thus polymer melt is produced impact, and then improve the performance of end article.
List of references:
[1 Ibar JP. Control of polymer properties by melt vibration
technology: a review. Polymer Engineering and Science. 1998;38(1):1-20
[2] A.Minardi,M.Boudeulle,E.Duval,S Etienne.Effect of the moulding
conditions on the semicrystalline structure of polypropylene. Polymer. 1997,
38(15):3957-3965。
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art to provide a kind of spiral shell dish to be injected into plunger combination formula
Type device, it has the strongest plasticizing, pulverizing and extrusion capability to various materials, owing to introducing vibration in the course of processing, raw
Product process is enhanced, good product quality.
In order to achieve the above object, this utility model is achieved in that it is that a kind of spiral shell dish is injected with plunger combination formula
Shaped device, including injection cylinder, injection mounting, motor, drive mechanism, stand, radial thrust bearing, hopper, machine barrel, electric heating
Device, Shift cylinder, gear and plunger；Described injection cylinder, motor, drive mechanism and machine barrel are installed on injection mounting, institute
The push rod stating Shift cylinder is connected with injection mounting；Characterized by further comprising plasticizing spiral shell dish, described plasticizing spiral shell dish includes rotating disk
And cylinder in conjunction, the face of cylinder of described rotating disk is provided with the excircle screw channel of more than three, at the right-hand member of rotating disk
Face is provided with the end face screw channel of more than three, the right-hand member of described excircle screw channel and end face screw channel UNICOM；At rotating disk and cylinder
It is provided with centre bore；Described machine barrel includes in cylindrical plasticizing chamber and injection tube, and rotating disk is positioned in plasticizing chamber and rotatable, institute
Stating hopper to be arranged on plasticizing chamber, the left end of excircle screw channel connects with hopper, the right-hand member of end face screw channel UNICOM excircle screw channel
Left end with injection tube；Described radial thrust bearing and gear are installed on the cylinder of plasticizing spiral shell dish, radial thrust bearing
It is arranged on stand；The right-hand member of described plunger passes rotating disk and cylindrical centre bore and is positioned at injection tube, plunger and injection
Cylinder matched in clearance, plunger is in rotating disk and cylindrical centre bore and injection tube and is axially movable.
Described spiral shell dish and plunger combination formula Coinjection molding apparatus, it is characterised in that also include motion controller and vibration dress
Putting, described motion controller controls the vibration of vibrating device, and described vibrating device is arranged between the push rod of plunger and injection cylinder.
In the technical program, described vibrating device drives the motion made of plunger to be: axial vibration, circular vibration, with
Shi Jinhang axial vibration and circular vibration, or vibrating device drive plunger make circumference rotary motion.
In the technical program, it is divided into two kinds of different situations.
The situation one of the technical program, the endoporus of described injection tube is clear opening, described plunger right part external cylindrical surface and note
The full section of endoporus of shooting cylinder has the gap that melting material can be made to pass through, and plunger is when any axial location of injection tube, and plastified melts
Material all can pass under pressure through gap and enter right-hand member.
The situation two of the technical program, the endoporus of described injection tube is shoulder hole, the big position of shoulder hole mesoporous with mould
Hua Qiang UNICOM, the position that shoulder hole mesoporous is little connects with injection orifice, described plunger right part external cylindrical surface and shoulder hole mesoporous
There is certain gap at big position, and the melting material plastified can pass under pressure through this gap and enter right section of injection tube, and plunger is right
External cylindrical surface position little with shoulder hole mesoporous in portion's is for being slidably matched but melting material cannot be passed through from its fit clearance.
In another technical scheme, the right-hand member at described plunger is provided with the check valve or checking head preventing material from flowing backwards, institute
State check valve or checking head is positioned at injection tube, check valve or checking head and is axially movable at injection tube.
This utility model compared with prior art, has the advantage that
1. the plasticizing part of plasticizing spiral shell dish have employed the cylindrical outer circumference screw channel+end face screw channel structure of more than three, this kind
Method changes classic screw plasticizing mode, utilizes external screw thread groove and end face screw channel to carry out plasticized extrudate material, is in a kind of principle
Change and lifting, it have extruding, pulverize, mix, the plasticizing of advantage that plasticizing capacity is strong, beneficially material and melted, right
Those are difficult to the material of plasticizing processing, and this point is especially beneficial.
2. induce one macromolecular material process of injection molding by vibration, can substantially optimize the course of processing, make macromolecular material
Effective viscoelasticity of melt and viscosity reduce, and flow rate increases, and the mixing of material is sheared and strengthened, hence it is evident that improve the property of moulded products
Can, by injection molded article after applying vibration is carried out mechanical property, DSC and density measurement, find injection molded article
Stretching and impact strength improve, and density becomes big, and the degree of crystallinity of sample improves, and goods interior quality and presentation quality have and change the most greatly
It is apt to and improves.
3., compared to the vibration of other forms introduced in plastics forming, this patent has simple and reliable for structure excellent
Point.
Accompanying drawing explanation
Fig. 1 is the structural representation of this utility model embodiment one；
Fig. 2 is the structural representation of machine barrel in Fig. 1；
Fig. 3 is the structural representation plastifying spiral shell dish in Fig. 1；
Fig. 4 is plasticizing spiral shell dish end face screw channel schematic diagram in Fig. 3；
Fig. 5 is the structural representation of this utility model embodiment two；
Fig. 6 is the structural representation of this utility model embodiment three.
Detailed description of the invention
Below in conjunction with the accompanying drawings detailed description of the invention of the present utility model is described further.At this it should be noted that
The explanation of these embodiments is adapted to assist in and understands this utility model, but be not intended that restriction of the present utility model.This
Outward, as long as technical characteristic involved in each embodiment of this utility model disclosed below does not constitutes punching each other
Dash forward and just can be combined with each other.
In this utility model describes, the orientation of the instruction such as term " left " and " right " or position relationship are for based on accompanying drawing institute
The orientation shown or position relationship, be for only for ease of description this utility model rather than require that this utility model must be with specifically
Azimuth configuration and operation, therefore it is not intended that to restriction of the present utility model.
Embodiment one
As shown in Figures 1 to 4, it is a kind of spiral shell dish and plunger combination formula Coinjection molding apparatus, including injection cylinder 1, note
Penetrate mounting 2, motor 3, drive mechanism 4, stand 5, radial thrust bearing 6, hopper 7, machine barrel 9, electric heater 10, Shift cylinder 13,
Gear 14 and plunger 15；
Described injection cylinder 1, motor 3 and drive mechanism 4 are installed on injection mounting 2, pushing away of described Shift cylinder 13
Bar is connected with injection mounting 2, and the push rod of such Shift cylinder 13 can promote injection mounting 2 to move；
Described plasticizing spiral shell dish 8 includes rotating disk 81 and cylinder 82, and described cylinder 82 is positioned at the left end of rotating disk 81, described
The face of cylinder of rotating disk 81 is provided with the excircle screw channel 811 of more than three, is provided with more than three on the right side of rotating disk 81
End face screw channel 812, the right-hand member of described excircle screw channel 811 and end face screw channel 812 UNICOM；Rotating disk 81 and cylinder 82 are provided with
Centre bore；Excircle screw channel 811 should be identical with end face screw channel 812, can be three, four, five or more a plurality of；
Described machine barrel 9 is arranged on injection mounting 2, and machine barrel 9 includes in cylindrical plasticizing chamber 91 and injection tube 92, rotating disk
81 are positioned in plasticizing chamber 91 and rotatable, and described hopper 7 is arranged on plasticizing chamber 91, and the left end of excircle screw channel 811 is by moulding
The radial hole changed on chamber 91 connects with hopper 7, the right-hand member of end face screw channel 812 UNICOM excircle screw channel 811 and a left side for injection tube 92
End；Excircle screw channel 811 and end face screw channel 812 as crushing material, mix, grind pressure, plasticizing and transfer passages, complete material
Plastifying fusion；
Described radial thrust bearing 6 and gear 14 are installed on cylinder 82, and radial thrust bearing 6 is arranged on stand 5
On；The right-hand member of described plunger 15 passes rotating disk 81 and the centre bore of cylinder 82 and is positioned at injection tube 92, plunger 15 and injection
Cylinder 92 matched in clearance, plunger 15 is in rotating disk 81 and the centre bore of cylinder 82 and injection tube 92 and is axially movable.
In order to make fused materials inject die cavity in a pulsing mode, the most also include motion controller 12 and vibration
Device 11, described motion controller 12 controls the vibration of vibrating device 11, and described vibrating device 11 is arranged on plunger 15 and note
Penetrate between the push rod of oil cylinder 1；The motion that described vibrating device 11 drives plunger 15 to be made is: axial vibration, circular vibration, simultaneously
Carry out axial vibration and circular vibration, or vibrating device 11 drives plunger 15 to make circumference rotary motion.
During work, motor 3 drives plasticizing spiral shell dish 8 to rotate by drive mechanism 4 and gear 14, the cylindrical on plasticizing spiral shell dish 8
Week thread groove 811 and end face helicla flute 812 as crushing material, mix, grind pressure, plastify and transfer passages, the material in hopper 7
Enter external peripheral threads groove 811 by the radially fed hole in the plasticizing chamber 91 of machine barrel 9, move right rotating under spiral shell rib promotes,
Subsequently enter end face helicla flute 812, then move to direction, the center of circle along end face helicla flute 812, finally in injection tube 92 to
The direction of injection nozzle is moved, and after system completes matched moulds process, Shift cylinder 13 drives injection mounting 2 to move to right, and drives bag
Include injection cylinder 1, motor 3, drive mechanism 4 and machine barrel 9 to move right at interior overall plasticizing injecting systems, until injection spray
Mouth and mould are fitted UNICOM, be passed through pressure oil the most again, promote vibrating device 11 and plunger 15 at machine barrel 9 in injection cylinder 1
Injection tube 92 in for linear motion, and meanwhile, vibrating device 11 can drive plunger 15 to vibrate, by injection tube 92
Fused materials injects die cavity in a pulsing mode, and makes plunger 15 carry out continuous print pressurize and feeding, and the vibration of plunger 15 is protected always
Hold until workpiece cooling and shaping in die cavity；Then plunger 15 retreats from the injection tube 92 of machine barrel 9, rotates spiral shell dish 8 and starts
Next round rotating plasticization moves.
Embodiment two
As it is shown in figure 5, it is a kind of spiral shell dish and plunger combination formula Coinjection molding apparatus, its structure and working principle is substantially
Identical with embodiment one, except that except that described injection tube 92 is shoulder hole, the position that shoulder hole mesoporous is big
Connecting with plasticizing chamber 91, the position that shoulder hole mesoporous is little connects with injection orifice, the periphery of described plunger 15 right part and ladder
One section that hole mesoporous is big has certain gap, and the melting material plastified can pass under pressure through this gap and enter the right side of injection tube 92
Section, the periphery of the plunger 15 right part position little with injection tube 92 shoulder hole mesoporous is for being slidably matched, but melting material cannot be from it
Fit clearance is passed through, but the little position volume of shoulder hole mesoporous have to be larger than the minimum injection rate set by injector.Work
Make principle essentially identical with embodiment one, no longer repeat.
Embodiment three
As shown in Figure 6, it is a kind of spiral shell dish and plunger combination formula Coinjection molding apparatus, and its structure and working principle is substantially
Identical with embodiment one, except that at the right-hand member of plunger 15 equipped with check valve 16(or checking head 16), described check valve 16
(or checking head 16) is positioned at injection tube 92, check valve 16(or checking head 16) it is axially movable at injection tube 92.Checking head is
A kind of prevent injection time fused materials flow backwards device, its operation principle is very much like with check valve, due to technique than
More ripe, and non-this patent key content, therefore no longer checking head structural principle is described at this.
During work, motor 3 drives plasticizing spiral shell dish 8 to rotate by drive mechanism 4 and gear 14, the cylindrical on plasticizing spiral shell dish 8
Week thread groove 811 and end face helicla flute 812 as crushing material, mix, grind pressure, plastify and transfer passages, the material in hopper 7
Enter external peripheral threads groove 811 by the charging hole in the plasticizing chamber 91 of machine barrel 9, move right, then rotating under spiral shell rib promotes
Upstream end surface helix groove 812, then moves to direction, the center of circle along end face helicla flute 812, the injection tube 92 of tailing edge machine barrel 9 to
Move right, by check valve 16(or the checking head 16 of plunger 15 right-hand member) leading section that is full of in the injection tube 92 on the right of machine barrel 9；
After system completes matched moulds process, Shift cylinder 13 drives injection mounting 2 to move to right, and drive includes injection cylinder 1, motor 3, passes
Motivation structure 4 and machine barrel 9 move right at interior overall plasticizing injecting systems, the UNICOM until injection nozzle and mould are fitted, so
After in injection cylinder 1, be passed through pressure oil again, promote plunger 15 and check valve 16(or checking head 16) at the injection tube 92 of machine barrel 9
In for linear motion, and meanwhile, vibrating device 11 can drive plunger 15 and check valve 16(or checking head 16) vibrate,
Fused materials in the injection tube 92 of machine barrel 9 is injected in a pulsing mode die cavity, and makes check valve or checking head 16 carry out continuously
Pressurize and feeding, its vibration is always maintained at until workpiece cooling and shaping in die cavity；Then plunger 15 drives check valve 16
(or checking head 16) retreats in the injection tube 92 of machine barrel 9, and plasticizing spiral shell dish 8 starts the motion of next round rotating plasticization.
Above in association with accompanying drawing, embodiment of the present utility model is explained in detail, but this utility model is not limited to institute
The embodiment described.For the ordinary skill in the art, without departing from principle of the present utility model and objective
In the case of these embodiments are carried out multiple change, revise, replace and deform and still fall within protection domain of the present utility model
In.
Claims (6)
1. spiral shell dish and a plunger combination formula Coinjection molding apparatus, including injection cylinder (1), injection mounting (2), motor (3), passes
Motivation structure (4), stand (5), radial thrust bearing (6), hopper (7), machine barrel (9), electric heater (10), Shift cylinder (13), tooth
Wheel (14) and plunger (15)；Described injection cylinder (1), motor (3), drive mechanism (4) and machine barrel (9) are installed in injection mounting
(2), on, the push rod of described Shift cylinder (13) is connected with injection mounting (2)；Characterized by further comprising plasticizing spiral shell dish (8), institute
State plasticizing spiral shell dish (8) and include rotating disk (81) and cylinder (82) in conjunction, the face of cylinder of described rotating disk (81) is provided with
Article three, the excircle screw channel (811) more than, is provided with the end face screw channel (812) of more than three, institute on the right side of rotating disk (81)
State right-hand member and end face screw channel (812) UNICOM of excircle screw channel (811)；Rotating disk (81) and cylinder (82) are provided with center
Hole；Described machine barrel (9) includes in cylindrical plasticizing chamber (91) and injection tube (92), and rotating disk (81) is positioned in plasticizing chamber (91) also
Rotatably, described hopper (7) is arranged in plasticizing chamber (91), and the left end of excircle screw channel (811) connects with hopper (7), end face
The right-hand member of screw channel (812) UNICOM excircle screw channel (811) and the left end of injection tube (92)；Described radial thrust bearing (6) and tooth
Wheel (14) is installed on cylinder (82), and radial thrust bearing (6) is arranged on stand (5)；The right-hand member of described plunger (15)
Through rotating disk (81) and the centre bore of cylinder (82) and be positioned at injection tube (92), plunger (15) is joined with injection tube (92) gap
Closing, plunger (15) is in rotating disk (81) and the centre bore of cylinder (82) and injection tube (92) and is axially movable.
Spiral shell dish the most according to claim 1 and plunger combination formula Coinjection molding apparatus, it is characterised in that also include motion control
Device processed (12) and vibrating device (11), described motion controller (12) controls the vibration of vibrating device (11), described vibrating device
(11) it is arranged between the push rod of plunger (15) and injection cylinder (1).
Spiral shell dish the most according to claim 2 and plunger combination formula Coinjection molding apparatus, it is characterised in that described vibrating device
(11) drive plunger (15) motion made to be: axial vibration, circular vibration, to carry out axial vibration and circular vibration simultaneously, or
Person's vibrating device (11) drives plunger (15) to make circumference rotary motion.
Spiral shell dish the most according to claim 1 and plunger combination formula Coinjection molding apparatus, it is characterised in that described injection tube
(92) endoporus is clear opening, and the full section of endoporus of described plunger (15) right part external cylindrical surface and injection tube (92) has can make melting material
The gap passed through, plunger (15) is when injection tube (92) any axial location, and the melting material plastified all can pass under pressure through
Gap enters right-hand member.
Spiral shell dish the most according to claim 1 and plunger combination formula Coinjection molding apparatus, it is characterised in that described injection tube
(92) endoporus is shoulder hole, the big position of shoulder hole mesoporous and plasticizing chamber (91) UNICOM, the position that shoulder hole mesoporous is little
Connecting with injection orifice, there is gap at the position that described plunger (15) right part external cylindrical surface is big with shoulder hole mesoporous, has plastified
Melting material can pass under pressure through this gap and enter right section of injection tube (92), plunger (15) right part external cylindrical surface and shoulder hole mesopore
Little position, footpath is for being slidably matched but melting material cannot be passed through from its fit clearance.
Spiral shell dish the most according to claim 1 and plunger combination formula Coinjection molding apparatus, it is characterised in that at described plunger
(15) right-hand member is provided with the check valve preventing material from flowing backwards or checking head (16), described check valve or checking head (16) and is positioned at injection
In cylinder (92), check valve or checking head (16) are axially movable at injection tube (92).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620357826.8U CN205705148U (en) | 2016-04-25 | 2016-04-25 | Spiral shell dish and plunger combination formula Coinjection molding apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620357826.8U CN205705148U (en) | 2016-04-25 | 2016-04-25 | Spiral shell dish and plunger combination formula Coinjection molding apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205705148U true CN205705148U (en) | 2016-11-23 |
Family
ID=57293572
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620357826.8U Withdrawn - After Issue CN205705148U (en) | 2016-04-25 | 2016-04-25 | Spiral shell dish and plunger combination formula Coinjection molding apparatus |
Country Status (1)
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| CN (1) | CN205705148U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105751455A (en) * | 2016-04-25 | 2016-07-13 | 顺德职业技术学院 | Spiral coil and plunger combined type injection molding device |
| CN106827427A (en) * | 2016-12-02 | 2017-06-13 | 湖北工业大学 | A kind of high pressure plasticizing of macromolecular material and injecting method and device |
-
2016
- 2016-04-25 CN CN201620357826.8U patent/CN205705148U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105751455A (en) * | 2016-04-25 | 2016-07-13 | 顺德职业技术学院 | Spiral coil and plunger combined type injection molding device |
| CN105751455B (en) * | 2016-04-25 | 2017-11-17 | 顺德职业技术学院 | Spiral shell disk and plunger combination formula Coinjection molding apparatus |
| CN106827427A (en) * | 2016-12-02 | 2017-06-13 | 湖北工业大学 | A kind of high pressure plasticizing of macromolecular material and injecting method and device |
| CN106827427B (en) * | 2016-12-02 | 2019-04-19 | 湖北工业大学 | A kind of high pressure plasticizing of high molecular material and injecting method and device |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20161123 Effective date of abandoning: 20171117 |
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| AV01 | Patent right actively abandoned |