CN217648905U - Single-screw extruder suitable for double-wall corrugated pipe production line - Google Patents
Single-screw extruder suitable for double-wall corrugated pipe production line Download PDFInfo
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- CN217648905U CN217648905U CN202220651964.2U CN202220651964U CN217648905U CN 217648905 U CN217648905 U CN 217648905U CN 202220651964 U CN202220651964 U CN 202220651964U CN 217648905 U CN217648905 U CN 217648905U
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Abstract
The utility model discloses a single screw extruder suitable for double-walled bellows production line, including screw rod, barrel, motor, shaft coupling, reduction gear, hopper, aircraft nose hookup body, frame, electrical control cabinet, the screw rod is installed inside the barrel, and the aircraft nose hookup body sets up in the discharge end of barrel, and the screw rod is divided into in proper order by feed inlet to aircraft nose hookup body and is added material section, plastify section, unloading section, and the front end of unloading section sets up the stirring head. The utility model has the advantages of: this extruder increases stirring head material plastify effect better, and exhausts to the material for fashioned bellows surface does not have the bubble, and the segmentation design makes the material can carry, compaction, mixing and plastify sooner, and realizes the purpose of drainage, dehydration. The design of the screw blanking section can reduce abrasion, stabilize yield and prolong the service life of the screw.
Description
Technical Field
The utility model relates to a double-walled bellows production material extrusion device especially relates to a single screw extruder suitable for double-walled bellows production line.
Background
The double-wall corrugated pipe is a novel pipe with corrugated outer wall and smooth inner wall. It has been widely used as a buried drain pipe, an underground cable pipe, etc. in a considerable range to replace conventional cast iron pipes, cement pipes, general plastic pipes, and wound corrugated pipes.
The screw rod adopted by the existing double-wall corrugated pipe extruder has the defects of unsatisfactory material plasticizing effect and easy formation of bubbles on the surface of the formed corrugated pipe. And the existing extruder screw also has the defect of poor abrasion resistance.
SUMMERY OF THE UTILITY MODEL
Not enough to prior art, the utility model provides a single screw extruder suitable for double-walled bellows production line, better plastify, the compression of ability.
The single-screw extruder suitable for the double-wall corrugated pipe production line comprises a screw, a machine barrel, a motor, a coupler, a speed reducer, a hopper, a machine head connecting body, a rack and an electric control cabinet, wherein the screw is installed inside the machine barrel, the machine head connecting body is arranged at the discharge end of the machine barrel, the screw is sequentially divided into a feeding section, a plasticizing section and a discharging section from a feed inlet to the machine head connecting body, and a stirring head is arranged at the front end of the discharging section.
Preferably, the barrel and the screw are made of 38CrMoAl A alloy steel and are subjected to heat treatment.
Further preferably, the outside of the cylinder is provided with a cast aluminum heater.
Further optimization, the length-diameter ratio of the screw is 38, the screw after optimization is more wear-resistant, and the yield can be stabilized.
Further optimized, the diameter of the screw is 90mm or 100mm or 120mm.
Further optimized, a cooling fan is arranged on the cast aluminum heater, and when the machine barrel is overheated, the fan on the heater can be automatically started to cool the machine barrel.
The utility model has the advantages that: this extruder increases stirring head material plastify effect better, and exhausts to the material for fashioned bellows surface does not have the bubble, and the segmentation design makes the material can carry, compaction, mixing and plastify sooner, and realizes the purpose of drainage, dehydration. The design of the screw blanking section can reduce abrasion, stabilize yield and prolong the service life of the screw.
Drawings
FIG. 1 is a schematic diagram of a single screw extruder suitable for use in a double-wall corrugated pipe production line.
Fig. 2 is a top view of fig. 1.
Fig. 3 is a schematic view of a screw structure.
The labels in the figure are: 1-a machine barrel, 2-a screw, 3-a motor, 4-a coupler, 5-a hopper, 6-a machine head connecting body, 7-a stirring head, 8-a cooling fan, 2 a-a feeding section, 2 b-a plasticizing section and 2 c-a discharging section.
Detailed Description
A single screw extruder suitable for use in a double wall corrugated pipe production line is further described below with reference to the accompanying drawings.
The single-screw extruder suitable for the double-wall corrugated pipe production line comprises a screw 2, a machine barrel 1, a motor 3, a coupler 4, a speed reducer, a hopper 5, a machine head connecting body 6, a rack and an electrical control cabinet, wherein the screw 2 is installed inside the machine barrel 1, the machine head connecting body is arranged at the discharge end of the machine barrel 1, the screw 2 is sequentially divided into a feeding section 2a, a plasticizing section 2b and a blanking section 2c from a feed inlet to the machine head connecting body, the front end of the blanking section 2c is provided with a stirring head 7, and compared with the existing extruder, the single-screw extruder has the advantages of more reasonable design, higher production efficiency and more energy conservation. Barrel 1 and screw 2 were made of 38CrMoAl a alloy steel and heat treated. The exterior of barrel 1 was fitted with a cast aluminum heater. The length-diameter ratio of the screw 2 is 38, and the optimized screw 2 is more wear-resistant and can stabilize the yield. The screw 2 has a diameter of 90mm or 100mm or 120mm. The cast aluminum heater is provided with a cooling fan 8, and when the cylinder 1 is overheated, the fan on the heater can be automatically started to cool the cylinder 1.
The single-screw extruder suitable for the double-wall corrugated pipe production line comprises the following components in part by weight: the machine mainly comprises a screw 2, a machine barrel 1, a motor 3, a coupler 4, a speed reducer, a hopper 5 seat, a heater, a cooling fan 8, a machine head connecting body 6, a rack, an electric control cabinet and the like.
(1) Screw 2
The screw 2 is a key part for conveying and plasticizing plastics, and can achieve the purposes of compacting, gas removing, melting, mixing and homogenizing granular plastics in operation. The screw 2 is made of 38CrMoAl A alloy steel, and achieves higher hardness and better wear resistance and corrosion resistance after heat treatment.
(2) Barrel 1 and heating and cooling system
(3) Handpiece coupling body 6
It is the part that couples the head to barrel 1, located at the discharge end of barrel 1.
(4) Transmission system
The transmission system is that under the selected process condition, the screw 2 rotates at a uniform speed with the necessary torque to complete the conveying and plasticizing of plastics by the screw 2, in order to meet the production requirements of various plastic products, the screw 2 has different speeds, the machine adopts an alternating current variable frequency motor 3, a speed reducer is directly driven by a coupler 4 to decelerate, the screw 2 is smooth and stepless speed regulation, and the rotating speed and the load size of the screw 2 can be displayed and read by an electric operation panel.
The single screw extruder suitable for the double-wall corrugated pipe production line has the structural characteristics that: the stirring head 7 is added, so that the material plasticizing effect is better, the length-diameter ratio of the screw rod 2 is large, the screw rod 2 is more efficient, and the extrusion amount is increased; the machine barrel 1 is heated by a cast aluminum heater, and a cooling fan 8 is arranged on the heater and can timely cool the machine barrel 1.
When the device is used, the trial run of the machine is operated by a person familiar with the technological process, so that measures can be taken in time when an accident occurs in the trial run process to prevent the occurrence of the accident.
(1) The motor 3 is started and inspected to see if its direction of rotation is satisfactory (the screw 2 rotates clockwise as seen from the discharge end of the extruder).
(2) And introducing cooling water into the cooling part of the charging opening, and observing whether the water holes of the inlet and the outlet are smooth or not and whether the leakage phenomenon exists or not.
(3) All the tests are normal and reliable, namely a switch of the heater can be switched on, whether the heating and the cooling are normal or not can be observed, and if the heating and the cooling are normal, the preheating can be carried out according to the set temperature required by the process.
(4) The temperature was observed and when the temperature reached the desired value, the incubation was continued for 60 minutes.
(5) Starting the machine to make it run at low speed, firstly adding a small amount of plastics, after the machine head discharges the materials, gradually increasing and increasing speed until the process is satisfied.
(6) And recording the test run condition for reference in future.
(7) After the test run, the barrel 1 is emptied of residual plastic immediately. So as not to prevent the next production from being smoothly carried out.
(8) The normal operation mode is the same as the test run.
The foregoing shows and describes the basic principles, primary structures and advantages of the present invention. It will be understood by those skilled in the art that variations and modifications in size and orientation may be made without departing from the spirit and scope of the invention as claimed.
Claims (6)
1. Single screw extruder suitable for double-walled bellows production line, including screw rod, barrel, motor, shaft coupling, reduction gear, hopper, aircraft nose hookup body, frame, electrical control cabinet, its characterized in that: the screw rod is installed inside the machine barrel, the machine head connecting body is arranged at the discharge end of the machine barrel, the screw rod is sequentially divided into a feeding section, a plasticizing section and a discharging section from the feeding hole to the machine head connecting body, and the front end of the discharging section is provided with the stirring head.
2. The single screw extruder adapted for use in a double-walled bellows production line of claim 1, wherein: the machine barrel and the screw are made of 38CrMoAl A alloy steel and are subjected to heat treatment.
3. The single screw extruder adapted for use in a double-walled bellows production line of claim 1, wherein: and a cast aluminum heater is arranged outside the cylinder.
4. The single screw extruder adapted for use in a double-walled bellows production line of claim 1, wherein: the length-diameter ratio of the screw is 38.
5. The single screw extruder adapted for use in a double-wall corrugated pipe production line of claim 1, wherein: the diameter of the screw is 90mm or 100mm or 120mm.
6. The single screw extruder adapted for use in a double-walled bellows production line of claim 3, wherein: and a cooling fan is arranged on the cast aluminum heater.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220651964.2U CN217648905U (en) | 2022-03-07 | 2022-03-07 | Single-screw extruder suitable for double-wall corrugated pipe production line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220651964.2U CN217648905U (en) | 2022-03-07 | 2022-03-07 | Single-screw extruder suitable for double-wall corrugated pipe production line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217648905U true CN217648905U (en) | 2022-10-25 |
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ID=83661794
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220651964.2U Active CN217648905U (en) | 2022-03-07 | 2022-03-07 | Single-screw extruder suitable for double-wall corrugated pipe production line |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217648905U (en) |
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2022
- 2022-03-07 CN CN202220651964.2U patent/CN217648905U/en active Active
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