CN214082750U - Screw extruder - Google Patents
Screw extruder Download PDFInfo
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- CN214082750U CN214082750U CN202022824216.3U CN202022824216U CN214082750U CN 214082750 U CN214082750 U CN 214082750U CN 202022824216 U CN202022824216 U CN 202022824216U CN 214082750 U CN214082750 U CN 214082750U
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- rotating shaft
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- screw extruder
- blade
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Abstract
The utility model discloses a screw extruder, it includes: the shell is used for accommodating other components and is provided with a first cylinder and a second cylinder, the first pushing component is used for pushing materials inside the first cylinder, the second pushing component is used for pushing materials inside the second cylinder, and the heating component is used for heating the materials in the first cylinder so as to melt the materials in the first cylinder in the pushing process. Utilize the utility model provides a screw extruder, usable first material subassembly that pushes away promotes constantly fused plastic granules, and pushes away the liquid material after the material subassembly promotes to melt with the second, has avoided pushing away the technical problem that the material subassembly can't satisfy high-efficient propulsion solid-state material and liquid material simultaneously, has improved screw extruder's work efficiency.
Description
Technical Field
The utility model relates to a material processing field, concretely relates to screw extruder.
Background
The plastic particles are melted and then extruded to form the plastic particles, which is a common industrial means, and the plastic particles are melted in the conveying process by utilizing a screw extruder with a heating function, and then the melted liquid material is extruded.
In order to obtain the highest propelling efficiency of the screw extruder, parameters such as the shape of the blades and the rotating speed of the blades need to be adjusted according to the physical characteristics of the materials, but the screw extruder is difficult to simultaneously and efficiently propel the granular materials and the materials in a molten state due to different forms of the granular materials and the molten materials.
Therefore, how to improve the propelling efficiency of the screw extruder with the heating function is a technical problem to be solved urgently.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome above-mentioned technique not enough, provide a screw extruder, solve among the prior art from the screw extruder of area heating unable technical problem that the efficient promoted solid-state material and liquid material simultaneously.
In order to achieve the above technical purpose, the technical solution of the present invention provides a screw extruder, which includes:
the shell comprises a first barrel and a second barrel, wherein one end of the first barrel is provided with a feeding hole, the other end of the first barrel is communicated with one end of the second barrel, and one end of the second barrel, which is far away from the first barrel, is provided with a discharging hole;
the first pushing assembly comprises a first rotating shaft, a first blade and a first driving piece, the first rotating shaft is coaxially arranged in the first cylinder, the first blade is in a spiral shape and is arranged on the first rotating shaft, the first blade, the first rotating shaft and the inner wall of the first cylinder surround a spiral channel, and the output end of the first driving piece is connected with the first rotating shaft so as to drive the first rotating shaft to rotate;
the second pushing assembly comprises a second rotating shaft, a second blade and a second driving piece, the second rotating shaft is coaxially arranged in the second cylinder, the second blade is in a spiral shape and is arranged on the second rotating shaft, the second blade, the second rotating shaft and the inner wall of the second cylinder surround a spiral channel, and the output end of the second driving piece is connected with the second rotating shaft so as to drive the second rotating shaft to rotate;
and the heating end of the heating element is arranged on the inner wall of the first barrel so as to heat the material in the first barrel.
Further, the casing still includes and delays the material chamber, first barrel is kept away from the one end intercommunication of feed inlet delay the material chamber, the second barrel is kept away from the one end intercommunication of discharge gate delay the material chamber, the gas vent has been seted up on delay material chamber top.
Furthermore, a plurality of draw-in grooves have been seted up along its generating line direction to first barrel inner wall, it includes a plurality of electric heat strips to add heat-insulating material, and is a plurality of the embedding of electric heat strip one-to-one is located a plurality of the draw-in groove.
Furthermore, a heat conducting film is attached to the inner wall of the first cylinder and isolates the electric heating strips from the materials.
Furthermore, the outer wall of the casing is coated with a heat-insulating layer.
Furthermore, the free end of the feed inlet extends outwards to form a funnel-shaped structure.
Compared with the prior art, the beneficial effects of the utility model include: during dropping into first barrel with plastic granules from the feed inlet, the first pivot of first driving piece drive is rotated, and then drive first blade, it advances to promote plastic granules at first blade, it heats plastic granules to add the heat-insulating material simultaneously, make plastic granules melt at the inside in-process of marcing of first barrel gradually, then the molten material gets into the second barrel, second driving piece drive second pivot is rotated, and then drive the second blade, pivoted second blade promotes liquid material and advances, finally make liquid material discharge from the discharge gate. Utilize the utility model provides a screw extruder, usable first material subassembly that pushes away promotes constantly fused plastic granules, and pushes away the liquid material after the material subassembly promotes to melt with the second, has avoided pushing away the technical problem that the material subassembly can't satisfy high-efficient propulsion solid-state material and liquid material simultaneously, has improved screw extruder's work efficiency.
Drawings
FIG. 1 is a schematic structural view of a screw extruder according to an embodiment of the present invention;
fig. 2 is a cross-sectional view of a first cylinder according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1, the present invention provides a screw extruder, which includes: the material pushing device comprises a machine shell 100, a first material pushing assembly 200, a second material pushing assembly 300 and a heating element 400, wherein the machine shell 100 is used for accommodating other assemblies and is provided with a first cylinder 110 and a second cylinder 120, the first material pushing assembly 200 is used for pushing materials in the first cylinder 110, the second material pushing assembly 300 is used for pushing materials in the second cylinder 120, and the heating element 400 is used for heating the materials in the first cylinder 110 so that the materials in the first cylinder 110 are melted in the pushing process.
The casing 100 is preferably made of a corrosion-resistant metal material in this embodiment, and includes a first cylinder 110 and a second cylinder 120, wherein one end of the first cylinder 110 has a feed port 111, the other end of the first cylinder communicates with one end of the second cylinder 120, and one end of the second cylinder 120 away from the first cylinder 110 has a discharge port 121. In order to put the material into the first cylinder 110, the free end of the feeding hole 111 extends outwards to form a funnel-shaped structure.
Considering that there are a large number of gaps between the plastic particles, a part of gas will remain inside the casing 100 after the plastic particles are melted, and the gas will be melted into the liquid material under the agitation of the blades, and finally form air pockets, which affects the quality of the final molded product. Therefore, the casing 100 further includes a buffering cavity 130, one end of the first cylinder 110 far away from the feeding hole 111 is communicated with the buffering cavity, one end of the second cylinder 120 far away from the discharging hole 121 is communicated with the buffering cavity 130, and the top end of the buffering cavity 130 is provided with an exhaust port 131.
In addition, in order to reduce the loss of heat, the outer wall of the casing 100 is covered with an insulating layer 130.
The first pushing assembly 200 includes a first rotating shaft 210, a first blade 220 and a first driving member 230, the first rotating shaft 210 is coaxially disposed in the first cylinder 110, the first blade 220 is spiral and is mounted on the first rotating shaft 210, the first blade 220, the first rotating shaft 210 and the inner wall of the first cylinder 110 enclose a spiral channel, and an output end of the first driving member 230 is connected to the first rotating shaft 210 to drive the first rotating shaft 210 to rotate. It should be noted that, in order to obtain good propulsion efficiency, the profile of the first blade 220, and the rotation speed of the first rotating shaft 210 should meet the requirement of propelling the plastic particles.
The second pushing assembly 300 includes a second rotating shaft 310, a second blade 320 and a second driving member 330, the second rotating shaft 310 is coaxially disposed in the second cylinder 120, the second blade 320 is spiral and is mounted on the second rotating shaft 310, the inner walls of the second blade 320, the second rotating shaft 310 and the second cylinder 120 enclose a spiral channel, the output end of the second driving member 330 is connected to the second rotating shaft 310 to drive the second rotating shaft 310 to rotate, which is similar to the first pushing assembly 200, the shape of the second blade 320, and the rotating speed of the second rotating shaft 310 should meet the requirement of pushing the molten material.
The heating element 400 has a heating end disposed on the inner wall of the first cylinder 110 to heat the material in the first cylinder 110. In principle, the material inside the first cylinder 110 can be heated, in this embodiment, a plurality of slots 112 are formed in the inner wall of the first cylinder 110 along the generatrix direction thereof, the heating element 400 includes a plurality of heating strips 410, and the plurality of heating strips 410 are embedded in the plurality of slots 112 in a one-to-one correspondence manner.
In addition, in order to avoid direct contact between the electric heating strips 410 and the material, the service life of the electric heating strips 410 is affected by corrosion of the electric heating strips. The inner wall of the first cylinder 110 is attached with a heat conducting film 113, and the electric heating strip 410 is isolated from the material by the heat conducting film 113.
The above description of the present invention does not limit the scope of the present invention. Any other corresponding changes and modifications made according to the technical idea of the present invention should be included in the scope of the claims of the present invention.
Claims (6)
1. A screw extruder, comprising:
the shell comprises a first barrel and a second barrel, wherein one end of the first barrel is provided with a feeding hole, the other end of the first barrel is communicated with one end of the second barrel, and one end of the second barrel, which is far away from the first barrel, is provided with a discharging hole;
the first pushing assembly comprises a first rotating shaft, a first blade and a first driving piece, the first rotating shaft is coaxially arranged in the first cylinder, the first blade is in a spiral shape and is arranged on the first rotating shaft, the first blade, the first rotating shaft and the inner wall of the first cylinder surround a spiral channel, and the output end of the first driving piece is connected with the first rotating shaft so as to drive the first rotating shaft to rotate;
the second pushing assembly comprises a second rotating shaft, a second blade and a second driving piece, the second rotating shaft is coaxially arranged in the second cylinder, the second blade is in a spiral shape and is arranged on the second rotating shaft, the second blade, the second rotating shaft and the inner wall of the second cylinder surround a spiral channel, and the output end of the second driving piece is connected with the second rotating shaft so as to drive the second rotating shaft to rotate;
and the heating end of the heating element is arranged on the inner wall of the first barrel so as to heat the material in the first barrel.
2. The screw extruder according to claim 1, wherein the casing further comprises a buffering cavity, one end of the first barrel, which is far away from the feed inlet, is communicated with the buffering cavity, one end of the second barrel, which is far away from the discharge outlet, is communicated with the buffering cavity, and an exhaust port is formed in the top end of the buffering cavity.
3. The screw extruder of claim 1, wherein the inner wall of the first barrel is provided with a plurality of slots along the generatrix direction, the heating element comprises a plurality of electric heating strips, and the plurality of electric heating strips are embedded in the plurality of slots in a one-to-one correspondence manner.
4. The screw extruder of claim 3, wherein a thermally conductive film is affixed to the first barrel inner wall, said thermally conductive film isolating the electrically heated strip from the material.
5. Screw extruder according to claim 1, wherein the outer wall of the housing is coated with an insulating layer.
6. The screw extruder of claim 1, wherein the feed throat free end extends outwardly in a funnel configuration.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022824216.3U CN214082750U (en) | 2020-11-30 | 2020-11-30 | Screw extruder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022824216.3U CN214082750U (en) | 2020-11-30 | 2020-11-30 | Screw extruder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214082750U true CN214082750U (en) | 2021-08-31 |
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ID=77454255
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022824216.3U Active CN214082750U (en) | 2020-11-30 | 2020-11-30 | Screw extruder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214082750U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113893811A (en) * | 2021-11-10 | 2022-01-07 | 吴志学 | Method for producing mesophase C-stage resin high-carbon material by using novel heat polymerization pusher |
-
2020
- 2020-11-30 CN CN202022824216.3U patent/CN214082750U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113893811A (en) * | 2021-11-10 | 2022-01-07 | 吴志学 | Method for producing mesophase C-stage resin high-carbon material by using novel heat polymerization pusher |
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