CN207044649U - Double screw extruder - Google Patents
Double screw extruder Download PDFInfo
- Publication number
- CN207044649U CN207044649U CN201720704109.2U CN201720704109U CN207044649U CN 207044649 U CN207044649 U CN 207044649U CN 201720704109 U CN201720704109 U CN 201720704109U CN 207044649 U CN207044649 U CN 207044649U
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- China
- Prior art keywords
- support side
- side plate
- cylinder
- screw rod
- barrel
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- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The utility model discloses a kind of double screw extruder; belong to plastics machinery technical field; the double screw extruder; two screw rods being installed on including its one end axially in barrel in the side wall of barrel one; the relative opposite side of barrel is provided with containment vessel, and containment vessel inwall is provided with the locating slot of grafting support side plate；Support side plate has two side by side, and respective screw rod is installed respectively in two support side plates；One support side plate is provided with the cylinder stretched out to another support side plate；Another support side plate is provided with the electromagnet for holding the external part of cylinder, and the external part of cylinder is provided with the iron block corresponding to the electromagnet；The inwall of barrel is provided with the range sensor for detecting respective screw rod radial distance；Range sensor passes through controller connection corresponding with the control terminal of electromagnet and cylinder.The utility model can solve the problems, such as that the depth of parallelism is difficult to ensure that between its twin-screw in the existing double screw extruder course of work.
Description
Technical field
It the utility model is related to plastics machinery technical field, especially a kind of twin-screw for modified plastic particles production
Extruder.
Background technology
Extruder is the machinery that a kind of plastic mixture by after heating is conveyed, and a kind of twin-screw shown in Fig. 1 squeezes
Go out machine, including axially in parallel driving screw rod 011 and driven screw 012 in barrel 01, the driving screw rod 011 and driven
The both ends of screw rod 012 are installed in the relative side wall 02 of the barrel respectively, and one end of the driving screw rod 011 is through accordingly
Driving gear 013 is set with after side wall 02, one end of the driven screw passes through suit driven gear 014 after the side wall, driving tooth
Wheel 013 is meshed with driven gear 014；The outer end of the side wall 02 is connected with the guarantor for going along with sb. to guard him driving gear 013 and driven gear 014
Protective case 03；The driving screw rod 011 is connected by shaft joint 04 with the output shaft of motor 05；During work, motor driving is actively
Screw rod rotates, and realizes driven screw and driving screw rod by driven gear while rotate, the plastics under the drive of screw rod rotation
Radial clearance of the compound from twin-screw, both between driving screw rod and driven screw is fed forward, at the same receive barrel heating,
The shearing and compression that screw rod is brought cause plastic mixture to melt, until being extruded.Due to this double screw extruder
Easily the respective bearing of twin-screw causing to wear in long-term rotation, the depth of parallelism has deviation between making twin-screw, therefore not only
The obstruction of molten plastic compound can be caused, influences the pace of plastic mixture, and can be to the shearing of plastic mixture
Power, mixing power and calendering force impact, so as to reduce the effect of material plasticizing.
Utility model content
The utility model provides a kind of double screw extruder, and the double screw extruder can solve existing double screw extruder
The problem of depth of parallelism is difficult to ensure that between its twin-screw in the course of work.
In order to solve the above problems, technical scheme is used by the utility model：This double screw extruder, including axle
Two screw rods in the side wall of barrel one are installed on to its one end in barrel, the relative opposite side of the barrel is provided with
Containment vessel, the containment vessel inwall are provided with the locating slot of grafting support side plate；The support side plate has two side by side, two institutes
State and install the respective screw rod in support side plate respectively；One support side plate is provided with to support side plate another described
The cylinder of stretching；Another described support side plate is provided with the electromagnet for holding the external part of the cylinder, the cylinder
External part is provided with the iron block corresponding to the electromagnet；The inwall of the barrel is provided with the distance for detecting respective screw rod radial distance
Sensor；The range sensor passes through controller connection corresponding with the control terminal of the electromagnet and the cylinder.
In above-mentioned technical proposal, more specifically technical scheme can also be：The range sensor be infrared distance measuring from
Sensor.
Further：Two screw rods are divided into driving screw rod and driven screw, and one end of the driving screw rod passes through phase
It is set with driving gear after the support side plate answered, one end of the driven screw is set with driven tooth after passing through corresponding support side plate
Wheel, the driving gear are meshed with the driven gear；The driving screw rod is connected by shaft joint with the output shaft of motor
Connect.
By adopting the above-described technical solution, the utility model has the advantages that compared with prior art：
1st, because containment vessel inwall is provided with the locating slot of grafting support side plate；Support side plate has two side by side, two branch
Respective screw rod is installed respectively on support side plate；One support side plate is provided with the cylinder stretched out to another support side plate；It is another
Individual support side plate is provided with the electromagnet for holding the external part of cylinder, and the external part of cylinder is provided with the iron corresponding to the electromagnet
Block；The inwall of barrel is provided with the range sensor for detecting respective screw rod radial distance；Range sensor passes through controller and electricity
The control terminal of magnet and cylinder is corresponding to be connected.So, during job initiation, two range sensors detect respective screw rod and material in real time
Radial distance between cylinder inwall, and the range information detected is delivered to controller respectively, controller by receive this two
Individual distance information value compares with preset value, if when unequal, controller exports control of the corresponding compensated information value to cylinder
End, controls stretching or the retraction of cylinder in time, and the length for controlling it to stretch out or return, until two range sensors detect in real time
Radial distance between the respective screw rod and material tube inner wall that arrive is equal with preset value；Now, controller provides power supply for electromagnet,
Cylinder external part is sucked with electromagnet, be fixed until end-of-job.Its accuracy of detection is high, has been effectively ensured between twin-screw
The depth of parallelism.
2nd, due to range sensor be infrared distance measuring from sensor, detected by infrared induction, it is further improved
The precision of detection.
Brief description of the drawings
Fig. 1 is the structural representation of existing double screw extruder.
Fig. 2 is the structural representation of the utility model embodiment.
Fig. 3 is Fig. 2 A-A to sectional view.
Embodiment
The utility model is described in further detail for embodiment below in conjunction with the accompanying drawings：
Kind double screw extruder shown in Fig. 2, including the He of barrel 1
Axially two screw rods in barrel 1, one end of two screw rods is installed in a side wall of barrel 1, in this
The opposite side of the relative barrel 1 of side wall is provided with containment vessel 3, and the inwall of containment vessel 3 is provided with the locating slot 31 of grafting support side plate 2；
Support side plate 2 has two side by side, and respective screw rod is installed respectively in two support side plates 2；Two screw rods are divided into driving screw rod
11 and driven screw 12, one end of driving screw rod 11 is set with driving gear 13, driven screw 12 after passing through corresponding support side plate 2
One end pass through corresponding support side plate 2 after be set with driven gear 14, driving gear 13 is meshed with driven gear 14；Active spiral shell
Bar 11 is connected by shaft joint 4 with the output shaft of motor 5；As shown in figure 3, a support side plate 2 is provided with to another and propped up
Support the cylinder 7 that side plate 2 stretches out；Another support side plate 2 is provided with the electromagnet 8 for holding the external part of cylinder 7, cylinder 7
External part is provided with the iron block corresponding to the electromagnet 8；The inwall of barrel 1 is provided with the distance biography for detecting respective screw rod radial distance
Sensor 6；Range sensor 6 passes through controller connection corresponding with the control terminal of electromagnet 8 and cylinder 7；Range sensor 6 is infrared
Line surveys range sensor.
So, during job initiation, two range sensors detect in real time radial direction between respective screw rod and material tube inner wall away from
From, and the range information detected is delivered to controller respectively, controller is by two distance information values received with presetting
Value compares, if when unequal, controller exports control terminal of the corresponding compensated information value to cylinder, controls stretching for cylinder in time
Go out or bounce back, and the length for controlling it to stretch out or return, until the respective screw rod and barrel that two range sensors detect in real time
Radial distance between inwall is equal with preset value；Now, controller provides power supply for electromagnet, makes cylinder external part and electromagnetism
Iron sucks, is fixed until end-of-job.Its accuracy of detection is high, and the depth of parallelism between twin-screw has been effectively ensured.
Claims (3)
1. a kind of double screw extruder, including its one end being axially located in barrel are installed on two in the side wall of barrel one
Screw rod, the relative opposite side of the barrel are provided with containment vessel, it is characterised in that：The containment vessel inwall is provided with grafting support side plate
Locating slot；The support side plate has two side by side, installs the respective screw rod in two support side plates respectively；One
The individual support side plate is provided with the cylinder stretched out to support side plate another described；Another described support side plate is provided with will
The electromagnet that the external part of the cylinder is held, the external part of the cylinder are provided with the iron block corresponding to the electromagnet；The material
The inwall of cylinder is provided with the range sensor for detecting respective screw rod radial distance；The range sensor by controller with it is described
The control terminal of electromagnet and the cylinder is corresponding to be connected.
2. double screw extruder according to claim 1, it is characterised in that：The range sensor be infrared distance measuring from
Sensor.
3. double screw extruder according to claim 1 or 2, it is characterised in that：Two screw rods are divided into driving screw rod
And driven screw, one end of the driving screw rod are set with driving gear after passing through corresponding support side plate, the driven screw
One end is meshed through corresponding support side plate suit driven gear, the driving gear with the driven gear；The active
Screw rod is connected by shaft joint with the output shaft of motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720704109.2U CN207044649U (en) | 2017-06-16 | 2017-06-16 | Double screw extruder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720704109.2U CN207044649U (en) | 2017-06-16 | 2017-06-16 | Double screw extruder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207044649U true CN207044649U (en) | 2018-02-27 |
Family
ID=61493919
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720704109.2U Active CN207044649U (en) | 2017-06-16 | 2017-06-16 | Double screw extruder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207044649U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110856969A (en) * | 2018-08-24 | 2020-03-03 | 恩格尔奥地利有限公司 | Plasticizing unit for a molding machine |
-
2017
- 2017-06-16 CN CN201720704109.2U patent/CN207044649U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110856969A (en) * | 2018-08-24 | 2020-03-03 | 恩格尔奥地利有限公司 | Plasticizing unit for a molding machine |
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| GR01 | Patent grant |