CN204869330U - Single screw plastic exdruder - Google Patents
Single screw plastic exdruder Download PDFInfo
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- CN204869330U CN204869330U CN201520596864.4U CN201520596864U CN204869330U CN 204869330 U CN204869330 U CN 204869330U CN 201520596864 U CN201520596864 U CN 201520596864U CN 204869330 U CN204869330 U CN 204869330U
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- screw extruder
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- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
Abstract
The utility model relates to a single screw plastic exdruder belongs to plastic film production facility field. Include: the broken mechanism of plastics, heating are melted the mechanism and are cut the grain cooling body, the heating is melted the mechanism and is included feed cylinder and screw rod, be provided with on the feed cylinder and send plastics into the hopper in the barrel, the screw rod sets up in the barrel, the screw rod passes through power unit at the feed cylinder internal rotation, the one end of feed cylinder is provided with the extrusion die, the screw rod includes feed zone, compression section, homogenization section. Therefore, the utility model has the advantages of as follows: 1. Reasonable in design, simple structure, the less and complete practicality of noise, 2. Output pressure stability, the material misce bene, granulation efficiency is higher, and life is longer, 3. Strengthened the plastify of raw materials, reduced brilliant production, successfully solved the three -layer and crowded the brilliant some problem of film in the full automatic production line project of autohension protection film altogether.
Description
Technical field
The utility model relates to a kind of extruder, belongs to plastic film production equipment field, is specifically related to a kind of single-screw extruder.
Background technology
The recycling of waste or used plastics and resource development, come from the heightened awareness to environment and resources, reducing waste or used plastics to the pollution of environment and the minimizing wasting of resources is a kind of life style, it is a major issue of benefiting the nation and the people, it is estimated that, often utilize one ton of waste or used plastics, can economize energy more than 85% compared with processing raw material, save processing charges 70-80%, be equivalent to save 20 tons, oil.
Waste plastic regeneration process; need first waste or used plastics to be passed through cleaning; dry and then with the screw extruder melting of plastic regeneration pelletizer, plasticizing; be extruded into strip; cool through cooling device again; finally adopt pelleter to be cut into particle, these particles entered the technique deep processings such as blowing, injection moulding, calendering again and became various plastic products.
Its project organization of existing singe screw plastic granulator is complicated, volume is large, production cost is higher, and low to the transfer efficiency of waste or used plastics, shear heat is large, and plasticizing effect is poor, and processing effect is bad, and production efficiency is low.
Utility model content
The utility model mainly solves that extruder project organization existing for prior art is complicated, volume is large, production cost is higher, and low to the transfer efficiency of waste or used plastics, shear heat is large, and plasticizing effect is poor, and processing effect is bad, the low inferior technical problem of production efficiency; Provide a kind of single-screw extruder.This extruder is reasonable in design, and structure is simple, and noise is less and completely practical; And output pressure is stablized, mixing of materials is even, and extrusion efficiency is higher, and service life is longer.
Above-mentioned technical problem of the present utility model is mainly solved by following technical proposals:
A kind of single-screw extruder, comprise: plastic crushing mechanism, heating and melting mechanism and pelletizing cooling body, described heating and melting mechanism comprises barrel and screw rod, described barrel comprises the cylindrical shell that is positioned at internal layer and is arranged on outer field containment vessel, insulation material is provided with between described cylindrical shell and containment vessel, described barrel is provided with the hopper sent into by plastics in cylindrical shell, described screw rod is arranged in cylindrical shell, described screw rod is rotated in barrel by actuating unit, and one end of described barrel is provided with extrusion die;
Described screw rod comprises feed zone, compression section, homogenizing zone, and feed zone is the constant isometrical thread segment in footpath, the end, and compression section is made up of main thread and deputy thread, and main thread forms solid phase groove, and deputy thread forms liquid phase groove, and solid phase groove is separated completely with liquid phase groove; The front end of homogenizing zone is oral screw thread, and oral screw thread is separately formed as the one or six head thread input group and the two or six head thread input group by spaced, and homogenizing zone rear end is Wolf tooth bar mixing section.
Optimize, above-mentioned a kind of single-screw extruder, from light to dark, from depth to shallow, the main thread of the solid phase groove on described main thread is apart from t for the runner of described two or six head thread input group for the runner of described one or six head thread input group
1progressively diminish, the deputy thread of the liquid phase groove on deputy thread is apart from t
2progressively become large.
Optimize, above-mentioned a kind of single-screw extruder, described insulation material is heat-preservation cotton.
Optimize; above-mentioned a kind of single-screw extruder; also heat radiation rack is provided with between described containment vessel and cylindrical shell; described heat radiation rack comprises base plate and is arranged on the side plate of base plate both sides; the winding of described heat radiation rack curl is on cylindrical shell; directly formed wind passage with containment vessel, and on containment vessel, offer air inlet and air outlet, described air inlet is connected with air blast.
Optimize, above-mentioned a kind of single-screw extruder, the material of described heat radiation rack is aluminium.
Optimize, above-mentioned a kind of single-screw extruder, the outer setting of described cylindrical shell has many group heaters and temperature sensor.
Optimize, above-mentioned a kind of single-screw extruder, described heater is heating wire or electric heating piece.
Optimize, above-mentioned a kind of single-screw extruder, the process of leaching nitrogen is taked on the surface of described screw rod, and treating depth is 0.3 ~ 0.6mm, and hardness is HV820 ~ 900.
Therefore, the utility model tool has the following advantages: 1. reasonable in design, and structure is simple, and noise is less and completely practical; 2. output pressure is stablized, and mixing of materials is even, and granulation efficiency is higher, and service life is longer; 3. enhance the plasticizing of raw material, decrease the generation of brilliant point, successfully solve the brilliant some problem of film in three-layer co-extruded tack diaphragm automatic production line project.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation.
Fig. 2 is the utility model screw-rod structure schematic diagram.
Fig. 3 is that schematic diagram is launched in the utility model homogenizing zone front end.
Detailed description of the invention
Below by embodiment, and by reference to the accompanying drawings, the technical solution of the utility model is described in further detail.In figure, barrel 1, cylindrical shell 11, containment vessel 12, screw rod 2, actuating unit 3, hopper 4, die head 5, heater 6, temperature sensor 7, feed zone 201, compression section 202, homogenizing zone 203, solid phase groove 204, liquid phase groove 205, oral screw thread 206, mixing section 207, main thread 208, deputy thread the 209, the 1 head thread input group the 210, the 26 head thread input group 211.
Embodiment:
As shown in Figure 1; a kind of single-screw extruder; comprise plastic crushing mechanism, heating and melting mechanism and pelletizing cooling body; described heating and melting mechanism comprises barrel 1 and screw rod 2; described barrel 1 comprises the cylindrical shell 11 that is positioned at internal layer and is arranged on outer field containment vessel 12; insulation material is provided with between described cylindrical shell 11 and containment vessel 12; described barrel 1 is provided with the hopper 4 sent into by plastics in cylindrical shell 11; described screw rod 2 is arranged in cylindrical shell 11; described screw rod 2 is rotated in barrel 1 by actuating unit 3, and one end of described barrel 1 is provided with extrusion die 5.
Barrel 1 of the present utility model is arranged to double-decker, and double-decker is directly filled with insulation material, can be effectively heat insulation; heat loss in cylindrical shell 11 is greatly reduced; reduce the power consumption of whole heater 8, on the other hand, the heat effectively isolating cylindrical shell 11 transmits to containment vessel 12; operating personnel can not directly contact high temperature cylindrical shell 11; security performance is high, and structure is simple, easy to operate; and result of use is good, greatly reduce the loss of energy.
In the present embodiment, insulation material is heat-preservation cotton, and certainly, the present embodiment does not limit the concrete material of insulation material.Also heat radiation rack is provided with between containment vessel 12 and cylindrical shell 11; described heat radiation rack 6 comprises base plate and is arranged on the side plate of base plate both sides; the winding of described heat radiation rack curl is on cylindrical shell 11; wind passage was directly formed with containment vessel 12; and air inlet and air outlet is offered on containment vessel 12, described air inlet is connected with air blast 7.Heat radiation rack entirety is in " door " shape, be that containment vessel 12 coordinates an overall formation semi-enclosed control, whole heat radiation rack curl be looped around on cylindrical shell 11, can need to select suitable winding number of times and closeness according to the actual temp of the cylindrical shell 11 in this region, air blast is adopted to dry in whole heat radiation rack, when heater 6 temperature-resistant, the size that can have more air blast 7 wind-force finely tunes the temperature of whole cylindrical shell 11, the mode of this heat radiation rack is adopted to dispel the heat, effectively prevent because cylindrical shell 11 temperature is too high, heat-preservation cotton is adopted to be difficult to faster technical problem temperature fallen, ensure that the yield rate producing product.
In the present embodiment, the material of described heat radiation rack is aluminium, the radiating effect of aluminium is preferably as the technical scheme that heat radiation rack is optimum, certainly, the utility model does not limit its concrete material, the outer setting of cylindrical shell 11 has many group heaters 6 and temperature sensor 7, for heating the material in cylindrical shell 11 and controlling cylindrical shell 11 temperature, in the present embodiment, described electric calorifie installation adopts heating wire or electric heating piece, directly by heating wire or electric heating piece winding on cylindrical shell 11, this mode is except the advantage that heating-up temperature is easy to control, the electric calorifie installation heating position and different capacity is set can also be changed as required.
As Figure 2-3, screw rod comprises feed zone 201, compression section 202, homogenizing zone 203, mixing section 207.
Compression section 202 adopts the double thread of decreasing worm-pitch, forms two delivery chutes be separated completely: solid phase groove 204 and liquid phase groove 205.Two grooves are completely isolated, and footpath at the bottom of screw rod is not communicated with mutually.Solid phase groove 204 volume progressively diminishes, and liquid phase groove 205 volume progressively becomes large, and the molten mass do not plastified in solid phase groove 204 can not enter liquid phase groove 205 by leakage current, thus improves the plasticizing effect of extruder.Homogenizing zone is set to the multiple thread of several 12, is separated completely each other on footpath, the end.The longitudinal degree of depth gradual change alternative of screw channel distributes, is not communicated with mutually.12 head threads add the contact area of melt and screw rod and shear number of times, improve plasticizing effect further while improving transfer efficiency.
Mixing section 207 adopts 16 grades to divide mace version.The melt plastified is carried out shear agitation, eliminates the Memorability of elasticity of plastics, the plastic melt of different component is plastified and homogenizing fully.
Feed zone 201 is the constant isometrical thread segment in footpath, the end, and compression section 202 is made up of main thread 208 and deputy thread 209, and main thread 208 forms solid phase groove 204, and deputy thread 209 forms liquid phase groove 205, and solid phase groove 204 is separated completely with liquid phase groove 205.The main thread of the solid phase groove 204 on main thread 208 progressively diminishes apart from t1, and the deputy thread of the liquid phase groove 205 on deputy thread 209 progressively becomes large apart from t2.
Homogenizing zone 203 is oral screw thread, by spaced separately formation two group of six head thread, dividing is separately the one or six head thread input group the 210 and the 26 head thread input group 211, the runner of the one or six head thread input group 210 from light to dark, from depth to shallow, two groups of screw threads improve conveying and shear plasticizing efficiency the runner of the two or six head thread input group 211.
The utility model at work, solid phase groove 204 is when being fed forward raw material, raw material is fusion plastification progressively, liquid phase groove 205 is entered through mixed flow, be fed forward by liquid phase groove 205, solid phase groove 204, liquid phase groove 205 separate completely, improve the stability of conveying, make extruder back pressure more stable, when melt enters homogenizing zone 203, enter spiral shell rib between the one or six head thread input group the 210, the 1 head thread input group the 210 and the 26 head thread input group 211 and plasticizing is sheared again to melt body, further raising plasticizing effect, reduces film crystalline substance point and produces.Melt body just enters Wolf tooth bar mixing section 207 to conveying again, upsets the Memorability homogenizing again of plastics.
The process of leaching nitrogen is also taked on the surface of extruder screw 2 described in the utility model, and the degree of depth is 0.3 ~ 0.6mm, and hardness is HV820 ~ 900.
The utility model has the advantages that: after utilizing zigzag thread to be smashed by the film in waste material, just easy by waste material thawing, thus reach twice laid, and extruder screw rod structure is reasonable in design, output pressure is stablized, and mixing of materials is even, granulation efficiency is higher, and service life is longer.
Specific embodiment described herein is only to the explanation for example of the utility model spirit.The utility model person of ordinary skill in the field can make various amendment or supplements or adopt similar mode to substitute to described specific embodiment, but can't depart from spirit of the present utility model or surmount the scope that appended claims defines.
Although more employ the terms such as barrel 1, cylindrical shell 11, containment vessel 12, screw rod 2, actuating unit 3, hopper 4, die head 5, heater 6, temperature sensor 7, feed zone 201, compression section 202, homogenizing zone 203, solid phase groove 204, liquid phase groove 205, oral screw thread 206, mixing section 207, main thread 208, deputy thread 209, the one or six head thread input group the 210, the 26 head thread input group 211 herein, do not get rid of the possibility using other term.These terms are used to be only used to describe and explain essence of the present utility model more easily; The restriction that they are construed to any one additional is all contrary with the utility model spirit.
Claims (8)
1. a single-screw extruder, it is characterized in that, comprise plastic crushing mechanism, heating and melting mechanism and pelletizing cooling body, described heating and melting mechanism comprises barrel (1) and screw rod (2), described barrel (1) comprises the cylindrical shell (11) that is positioned at internal layer and is arranged on outer field containment vessel (12), insulation material is provided with between described cylindrical shell (11) and containment vessel (12), described barrel (1) is provided with the hopper (4) sent into by plastics in cylindrical shell (11), described screw rod (2) is arranged in cylindrical shell (11), described screw rod (2) is rotated in barrel (1) by actuating unit, one end of described barrel (1) is provided with extrusion die (5),
Described screw rod (2) comprises feed zone (201), compression section (202), homogenizing zone (203), feed zone (201) is the constant isometrical thread segment in footpath, the end, compression section (202) is made up of main thread (208) and deputy thread (209), main thread (208) forms solid phase groove (204), and deputy thread (209) forms liquid phase groove (205); The front end of homogenizing zone (203) is oral screw thread (206), oral screw thread (206) is separately formed as the one or six head thread input group (210) and the two or six head thread input group (211) by spaced, and homogenizing zone rear end is Wolf tooth bar mixing section (207).
2. a kind of single-screw extruder according to claim 1, it is characterized in that, the runner of described one or six head thread input group (210) from light to dark, from depth to shallow, the main thread of the solid phase groove (204) on described main thread (208) is apart from t for the runner of described two or six head thread input group (211)
1progressively diminish, the deputy thread of the liquid phase groove (205) on deputy thread (209) is apart from t
2progressively become large.
3. a kind of single-screw extruder according to claim 1, is characterized in that, described insulation material is heat-preservation cotton.
4. a kind of single-screw extruder according to claim 1; it is characterized in that; also heat radiation rack is provided with between described containment vessel and cylindrical shell; described heat radiation rack comprises base plate and is arranged on the side plate of base plate both sides; the winding of described heat radiation rack curl is on cylindrical shell (11); directly formed wind passage with containment vessel (12), and offer air inlet and air outlet on containment vessel (12), described air inlet is connected with air blast.
5. a kind of single-screw extruder according to claim 4, is characterized in that, the material of described heat radiation rack is aluminium.
6. a kind of single-screw extruder according to claim 1, is characterized in that, the outer setting of described cylindrical shell (11) organizes heater (6) and temperature sensor (7) more.
7. a kind of single-screw extruder according to claim 6, is characterized in that, described heater (6) is heating wire or electric heating piece.
8. a kind of single-screw extruder according to claim 1, is characterized in that, the process of leaching nitrogen is taked on the surface of described screw rod (2), and treating depth is 0.3 ~ 0.6mm, and hardness is HV820 ~ 900.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520596864.4U CN204869330U (en) | 2015-08-10 | 2015-08-10 | Single screw plastic exdruder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520596864.4U CN204869330U (en) | 2015-08-10 | 2015-08-10 | Single screw plastic exdruder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204869330U true CN204869330U (en) | 2015-12-16 |
Family
ID=54813751
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520596864.4U Expired - Fee Related CN204869330U (en) | 2015-08-10 | 2015-08-10 | Single screw plastic exdruder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204869330U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106827452A (en) * | 2017-03-30 | 2017-06-13 | 安庆市汇东机械有限责任公司 | Single-screw extruder bolt special |
| CN114670361A (en) * | 2022-03-30 | 2022-06-28 | 江苏思可达塑业有限公司 | Granulation device and granulation method for reinforced polypropylene material |
| CN114772084A (en) * | 2022-03-24 | 2022-07-22 | 安徽亿晶包装科技有限公司 | Feeding equipment for glass bottle processing melting furnace |
-
2015
- 2015-08-10 CN CN201520596864.4U patent/CN204869330U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106827452A (en) * | 2017-03-30 | 2017-06-13 | 安庆市汇东机械有限责任公司 | Single-screw extruder bolt special |
| CN114772084A (en) * | 2022-03-24 | 2022-07-22 | 安徽亿晶包装科技有限公司 | Feeding equipment for glass bottle processing melting furnace |
| CN114670361A (en) * | 2022-03-30 | 2022-06-28 | 江苏思可达塑业有限公司 | Granulation device and granulation method for reinforced polypropylene material |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151216 Termination date: 20190810 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |