CN209126141U - A kind of large size extruder screw and the barrel that cooperates it to use - Google Patents
A kind of large size extruder screw and the barrel that cooperates it to use Download PDFInfo
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- CN209126141U CN209126141U CN201821996065.6U CN201821996065U CN209126141U CN 209126141 U CN209126141 U CN 209126141U CN 201821996065 U CN201821996065 U CN 201821996065U CN 209126141 U CN209126141 U CN 209126141U
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- screw rod
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- barrel
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 9
- 239000010959 steel Substances 0.000 claims abstract description 9
- 239000007787 solid Substances 0.000 claims abstract description 8
- 239000000463 material Substances 0.000 claims description 8
- 238000010276 construction Methods 0.000 claims description 5
- 230000007704 transition Effects 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims 1
- 239000004033 plastic Substances 0.000 abstract description 26
- 229920003023 plastic Polymers 0.000 abstract description 25
- 238000000034 method Methods 0.000 abstract description 8
- 238000005516 engineering process Methods 0.000 abstract description 2
- 230000006835 compression Effects 0.000 description 4
- 238000007906 compression Methods 0.000 description 4
- 229910000851 Alloy steel Inorganic materials 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 239000000411 inducer Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 229920006255 plastic film Polymers 0.000 description 1
- 239000007790 solid phase Substances 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 210000003781 tooth socket Anatomy 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
A kind of large size extruder screw and the barrel that cooperates it to use belong to extruder structure design field, it is therefore intended that solve the problems, such as of the existing technology cannot directly process large scale plastics, process complexity, being also easy to produce bridge canopy phenomenon and at high cost.The utility model include more piece head and the tail be sequentially fixedly and coaxially connected divide screw rod, each screw rod is divided to include the flight on central axis and centrally disposed axis, the whole increment outer diameter that more piece divides screw rod to form is identical, and screw pitch reduces section by section from one end to the other end, groove depth reduces section by section.The utility model root and barrel just have biggish space, can form the feeding space of large capacity, avoid the appearance of the loose plastics bridge canopy phenomenon of feeding inlet；Divide screw rod to assemble by more piece, solves the problems, such as that long axis difficulty of processing is big；The first segment of entrance feeding section divides screw rod to connect using solid shafting with driving spindle, remaining each section uses the enough steel bushings of intensity, can reduce the weight of screw rod, mitigates canonical loading, lowers power consumption.
Description
Technical field
The utility model belongs to extruder structure design field, and in particular to a kind of large size extruder screw and cooperation
Its barrel used.
Background technique
The host of plastic extruder is extruding machine, it is made of extrusion system, transmission system and heating and cooling system.It squeezes
System includes screw rod, machine barrel, hopper and mold, is moved forward under the promotion of screw rod spiral shell rib, the every rotation of screw rod one week, material to
One lead of preceding movement, material will be by a series of processes such as plastifying fusions in screw channel, and form is by initial solid-state, through molten
All too many levels such as film, circulation and solid phase be broken, are finally changed into molten state, then are shaped to mould via equipment such as head, molds
Expect finished product.Wherein screw rod is the main component of extruding machine, it is directly related to the application range and productivity of extruding machine, by height
The steel alloy of strength corrosion resistant is made.Machine barrel is a metallic cylinder, also referred to as barrel, generally with heat-resisting, compressive resistance is higher, firm
The composite steel tube of wear-resisting, corrosion resistant steel alloy or interliner alloy steel is made.Machine barrel and screw rod cooperate, and realize the powder to plastics
Broken, softening, melting, plasticizing, exhaust and compacting, and plastics are conveyed to formation system continuous uniform.The length of general machine barrel is it
15~30 times of diameter, so that plastics obtain sufficiently heating and sufficiently plasticizing is principle.3, hopper: feed hopper bottom is equipped with truncation dress
It sets, to adjust and cut off stream, the side of hopper is equipped with window and marking meter.4, head and mold.
Traditional extruder screw is all generally using simple solid structure, and screw rod rotation center is in the plastics moment and pushes away
Dynamic friction state, solid screw easily deform when heated.Central axis is caused to be pulled off to avoid the problem that torque is excessive, diameter
To guarantee that design rigidity, usual screw rod are uniform pitch, metering type to size, be suitable for density and be bordering on 1 gram/cm3Plastic raw materials,
Since the feeding section screw pitch of common screw is small, tooth socket is shallow, and loose plastics can generate bridge canopy phenomenon in the entrance feeding section of extruder,
Feeding is hindered, for mass production requirement, can not normally be produced, so-called bridge canopy phenomenon, that is, traditional extruder is put into
Plastic raw materials cause plastic raw materials that cannot fall in inlet Bracket Type each other, and screw rod is caused to dally and input without material.For
When large scale plastic processing, need to pre-process large scale plastics, be processed into little particle or powder, place into extruder into
Row following process, it is complicated, at high cost for large scale plastic processing.
Utility model content
The purpose of this utility model is that the barrel for proposing a kind of large-scale extruder screw and it being cooperated to use, solves existing
Directly loose plastics cannot be processed existing for technology, complexity is processed, be also easy to produce bridge canopy phenomenon and problem at high cost.
To achieve the above object, a kind of large-scale extruder screw of the utility model includes that more piece head and the tail are sequentially coaxial fixed
Connection divides screw rod, and each dividing screw rod includes the flight on central axis and centrally disposed axis, and more piece divides screw rod to form
Whole flight increment outer diameter is identical, and screw pitch reduces section by section from one end to the other end, groove depth reduces section by section.
Each section divides pitch rod outer surface to be cylindrical surface.
An independent section divides the screw pitch on screw rod identical, and groove depth is identical.
Dividing screw rod described in more piece is the tube-in-tube structure of hollow shape.
Divide the smallest size of section of outer diameter in screw rod that screw rod is divided to be solid construction described in more piece, other sections divide screw rod for sky
The tube-in-tube structure of heart shaped.
The material for dividing screw rod is steel.
The barrel for cooperating large-scale extruder screw to use includes:
First cylindrical drum, the flight increment transition fit of first cylindrical drum and large-scale extruder screw entirety；
The cone cylinder that one end is fixedly connected with first cylindrical drum one end, the cone cylinder and large-scale extruder screw arrival end pair
It answers；
And connected with the first conical cylinder section other end and the second cylindrical drum, be provided in second cylindrical drum into
Material mouth, feed inlet upper end are connected with feed hopper；Outer diameter is minimum in second cylindrical drum and the large-scale extruder screw
A section divide screw rod corresponding.
The utility model has the following beneficial effects: a kind of large-scale extruder screw of the utility model is the case where meeting intensity
Under, feeding inlet root and barrel just have biggish space, then screw pitch will suitably increase herein, can form the feeding of large capacity
Space avoids the appearance of the loose plastics bridge canopy phenomenon of feeding inlet.
The utility model divides screw rod to assemble by more piece, solves the problems, such as that long axis difficulty of processing is big, every section divides screw slot
Deep and screw pitch is all different, and screw pitch reduces section by section from the inlet to the outlet, and groove depth also becomes shallow section by section from the inlet to the outlet.An independent section
Divide the screw pitch on screw rod can be identical or different, groove depth can be identical or different.Such design, maintains since feeding inlet
High compression ratio reduces the entrainment of air, by the socket row of exhausting-gas hole discharging in extruder during being pressurized section by section
Its steam is discharged in existing moisture, reduces section by channel step by step, meets plastic molten melt rule, plastics can be in the scale of construction
It is melted well in compression.
The first segment that the utility model is located at entrance feeding section divides screw rod to connect using solid shafting with driving spindle, thereafter respectively
Section divides screw rod to be all made of steel bushing gradually to connect, and the increment outer diameter of all sections is identical, and root diameter increases section by section from the inlet to the outlet
Greatly.It can reduce the weight of screw rod using the enough steel bushings of intensity, mitigate canonical loading, lower power consumption.
The barrel inducer of the utility model uses cone cylinder structure, increases feeding capacity at charging, further avoids pan feeding
The appearance of the loose plastics bridge canopy phenomenon of mouth.
Detailed description of the invention
Fig. 1 is a kind of large-scale extruder screw overall structure diagram of the utility model；
Fig. 2 is structural schematic diagram when the utility model barrel cooperates a kind of large-scale extruder screw to use；
Wherein: 1, dividing screw rod, 101, central axis, 102, flight；2, barrel, the 201, first cylindrical drum, 202, cone cylinder；
203, the second cylindrical drum, 204, feed inlet, 205, feed hopper.
Specific embodiment
The embodiments of the present invention is described further with reference to the accompanying drawing.
Referring to attached drawing 1, a kind of large-scale extruder screw of the utility model includes that more piece head and the tail are sequentially fixedly and coaxially connected
Divide screw rod 1, each dividing screw rod 1 includes the flight 102 on central axis 101 and centrally disposed axis 101, and more piece divides screw rod
What 1 central axis 101 connected into is integrally formed ladder shaft-like, and more piece divides the whole 102 increment outer diameter of flight that screw rod 1 forms
Identical, screw pitch L reduces section by section from one end to the other end, groove depth H reduces section by section.
Each section divides 1 center-pole of screw rod, 1 outer surface to be cylindrical surface.
An independent section divides the screw pitch L on screw rod 1 identical, and groove depth H is identical.
Dividing screw rod 1 described in more piece is the tube-in-tube structure of hollow shape.
Divide the smallest size of section of outer diameter in screw rod 1 that screw rod 1 is divided to be solid construction described in more piece, other sections divide screw rod 1
For the tube-in-tube structure of hollow shape.
The material for dividing screw rod 1 is steel.
Referring to attached drawing 2, the barrel 2 for cooperating large-scale extruder screw to use includes:
First cylindrical drum 201, the 102 increment mistake of flight of first cylindrical drum 201 and large-scale extruder screw entirety
Cross cooperation；
The cone cylinder 202 that one end is fixedly connected with 201 one end of the first cylindrical drum, the cone cylinder 202 and large-scale extruder screw
Arrival end is corresponding；
And connected with first cone cylinder, 202 sections of other ends and the second cylindrical drum 203, second cylindrical drum 203
On be provided with feed inlet 204,204 upper end of feed inlet is connected with feed hopper 205；Second cylindrical drum 203 and the large size are squeezed
The smallest size of section of outer diameter divides screw rod 1 corresponding in machine screw rod out.
A kind of large-scale extruder screw of the utility model is suitable for large-scale extruder, and 1 entrance feeding section of screw rod is power
Twist-off force maximum, and the tooth root and 2 barrel of barrel that determine screw rod, apart from place, herein apart from small, loose plastics are just difficult to
Feeding.The antitorque cutting capacity of screw rod and feeding section root diameter (RD) it is cube directly proportional, calculate accordingly, large-scale screw rod is meeting intensity
In the case where, root and barrel just have biggish space, then screw pitch L will suitably increase herein, can form feeding for large capacity
Material space avoids the appearance of the loose plastics bridge canopy phenomenon of feeding inlet.
The utility model divides screw rod 1 to assemble by more piece, solves the problems, such as that long axis difficulty of processing is big, and the application is large-scale
Extruder screw, yield is bigger, and diameter is bigger, and screw rod is longer, can reach several meters to tens meters, such entirety screw rod difficult processing
Degree is very big, to solve the problems, such as to add hardly possible, is processed using merogenesis, then the method for assembled formation.It is determined according to univers parameter every
Section divides length, diameter and the joint number of screw rod 1, and every section divides screw rod 1 groove depth H and screw pitch L to be all different, and screw pitch L is from entrance to out
Mouth reduces section by section, and groove depth H also becomes shallow section by section from the inlet to the outlet.Such design, maintains high compression ratio since feeding inlet,
The entrainment for reducing air passes through water present in the socket row of exhausting-gas hole discharging in extruder during being pressurized section by section
Point, its steam is discharged, section is reduced by channel step by step, meets plastic molten melt rule, plastics can be in scale of construction compression very
Good melting.
Long bolt causes weight excessive, increases canonical loading, increases power consumption, and the application is located at the of entrance feeding section
One section divides screw rod 1 to connect using solid shafting with driving spindle, and each section divides screw rod 1 to be all made of steel bushing and gradually connects thereafter, all
The increment outer diameter of section is identical, and root diameter increases section by section from the inlet to the outlet.Screw rod can reduce using the enough steel bushings of intensity
Weight mitigates canonical loading, lowers power consumption.
The utility model is a kind of large-scale extruder screw, for processing 15 tons or more loose plastic film waste material energy day
The large-scale dedicated extruder of power, the plastics melted through this extruder can be directly entered next process and be made product, this programme by
In can largely handle waste plastic, for comprehensive treatment waste plastic, to eliminate white pollution extremely advantageous.
Claims (7)
1. a kind of large size extruder screw, which is characterized in that divide screw rod (1) including what more piece head and the tail were sequentially fixedly and coaxially connected,
Each screw rod (1) is divided to include the flight (102) on central axis (101) and centrally disposed axis (101), more piece divides screw rod
(1) whole flight (102) increment outer diameter of composition is identical, and screw pitch reduces section by section from one end to the other end, groove depth subtracts section by section
It is small.
2. a kind of large-scale extruder screw according to claim 1, which is characterized in that each section divides screw rod (1) center-pole
(1) outer surface is cylindrical surface.
3. a kind of large-scale extruder screw according to claim 1 or 2, which is characterized in that an independent section divides on screw rod (1)
Screw pitch it is identical, groove depth is identical.
4. a kind of large-scale extruder screw according to claim 1, which is characterized in that divide screw rod (1) equal described in more piece
For the tube-in-tube structure of hollow shape.
5. a kind of large-scale extruder screw according to claim 1, which is characterized in that divide in screw rod (1) described in more piece
The smallest section of outer diameter divides screw rod (1) to be solid construction, other sections divide screw rod (1) to be the tube-in-tube structure of hollow shape.
6. a kind of large-scale extruder screw according to claim 1, which is characterized in that the material for dividing screw rod (1)
For steel.
7. the barrel that large-scale extruder screw described in any one of cooperation claim 1-6 uses, which is characterized in that barrel
(2) include:
First cylindrical drum (201), flight (102) increment of first cylindrical drum (201) and large-scale extruder screw entirety
Transition fit；
The cone cylinder (202) that one end is fixedly connected with the first cylindrical drum (201) one end, the cone cylinder (202) and large-scale extruder spiral shell
Bar arrival end is corresponding；
And connected with the first cone cylinder (202) section other end and the second cylindrical drum (203), second cylindrical drum
(203) it is provided on feed inlet (204), feed inlet (204) upper end is connected with feed hopper (205)；Second cylindrical drum (203)
Divide screw rod (1) corresponding with the smallest size of section of outer diameter in the large-scale extruder screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821996065.6U CN209126141U (en) | 2018-11-30 | 2018-11-30 | A kind of large size extruder screw and the barrel that cooperates it to use |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821996065.6U CN209126141U (en) | 2018-11-30 | 2018-11-30 | A kind of large size extruder screw and the barrel that cooperates it to use |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209126141U true CN209126141U (en) | 2019-07-19 |
Family
ID=67247523
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821996065.6U Active CN209126141U (en) | 2018-11-30 | 2018-11-30 | A kind of large size extruder screw and the barrel that cooperates it to use |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209126141U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113276385A (en) * | 2021-06-08 | 2021-08-20 | 河南工业职业技术学院 | Extrusion molding mold with controllable extrusion rate |
-
2018
- 2018-11-30 CN CN201821996065.6U patent/CN209126141U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113276385A (en) * | 2021-06-08 | 2021-08-20 | 河南工业职业技术学院 | Extrusion molding mold with controllable extrusion rate |
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