CN219838175U - Conical double-screw plastic extruder - Google Patents
Conical double-screw plastic extruder Download PDFInfo
- Publication number
- CN219838175U CN219838175U CN202321064186.8U CN202321064186U CN219838175U CN 219838175 U CN219838175 U CN 219838175U CN 202321064186 U CN202321064186 U CN 202321064186U CN 219838175 U CN219838175 U CN 219838175U
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- China
- Prior art keywords
- pipe
- preheating hopper
- preheating
- plastic extruder
- machine body
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- 238000003756 stirring Methods 0.000 claims abstract description 28
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 19
- 238000007599 discharging Methods 0.000 claims abstract description 18
- 238000001125 extrusion Methods 0.000 claims abstract description 14
- 238000007670 refining Methods 0.000 claims abstract description 12
- 230000005540 biological transmission Effects 0.000 claims description 29
- 238000001816 cooling Methods 0.000 claims description 5
- 238000009413 insulation Methods 0.000 claims description 5
- 210000002268 wool Anatomy 0.000 claims 2
- 239000002994 raw material Substances 0.000 abstract description 30
- 239000002699 waste material Substances 0.000 abstract description 2
- 229920000742 Cotton Polymers 0.000 description 5
- 238000010438 heat treatment Methods 0.000 description 5
- 239000000498 cooling water Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 235000012438 extruded product Nutrition 0.000 description 4
- 239000002918 waste heat Substances 0.000 description 4
- 238000002156 mixing Methods 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
Landscapes
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The utility model relates to the technical field of conical double-screw extruders, in particular to a conical double-screw plastic extruder which comprises a machine body, wherein the machine body comprises a discharging pipe, and a discharging mechanism is arranged at the top end of a feeding pipe in the machine body; the discharging mechanism comprises a feeding pipe and a preheating hopper, a driving mechanism is arranged on the outer wall of the preheating hopper, a stirring rod is arranged on the inner wall of the preheating hopper, a plurality of groups of stirring blades are uniformly arranged on the side wall of the stirring rod, a discharging rod is arranged on the feeding pipe, and a plurality of groups of refining blades are uniformly arranged around the outer wall of the discharging rod; the side wall of the preheating hopper is provided with a cavity, a coiled pipe is uniformly wound in the cavity, the water inlet end of the coiled pipe extends to the outside of the bottom end of the preheating hopper and is provided with a hose, and the water outlet end of the coiled pipe extends to the top end of the side wall of the preheating hopper. The utility model can recycle the preheating, is convenient for preheating the extrusion raw materials, avoids resource waste, can uniformly discharge the extrusion raw materials and improves the extrusion efficiency.
Description
Technical Field
The utility model relates to the technical field of conical double-screw extruders, in particular to a conical double-screw plastic extruder.
Background
The conical double-screw plastic extruder is high-efficiency mixing and extruding equipment, can directly prepare PVC powder into plastic products such as pipes, plates, profiles and the like, and is widely applied to the plastic product processing industry.
The Chinese patent with the publication number of CN212422118U discloses a conical double-screw plastic extruder, belongs to the field of conical double-screw extruders, and solves the problem of inconvenient cleaning of the existing conical double-screw plastic extruder. The conical double-screw plastic extruder can clean the screw inside the machine barrel without dismantling the machine barrel, is convenient to use and effectively reduces the labor intensity.
However, one end of the discharging pipe on the conical double-screw plastic extruder is provided with a cooler, and the cooler utilizes cooling water to cool the just extruded product in time, so that the product molding is quickened, the product is effectively prevented from being deformed, but the waste heat of the just extruded product is not fully utilized, and the waste of resources is caused.
Disclosure of Invention
The utility model aims at solving the problems in the background technology and provides a conical double-screw plastic extruder.
The technical scheme of the utility model is as follows: a conical double-screw plastic extruder comprises an extruder body, wherein the extruder body comprises a discharging pipe, the discharging pipe is arranged at an extrusion port of the extruder body, a shell is arranged outside the discharging pipe, and a discharging mechanism is arranged at the top end of a feeding pipe in the extruder body;
the feeding mechanism comprises a feeding pipe and a preheating hopper, an electromagnetic valve is arranged at the joint of the feeding pipe and the preheating hopper, a driving mechanism is arranged on the outer wall of the preheating hopper, a stirring rod is arranged on the inner wall of the preheating hopper, the driving mechanism drives the stirring rod to rotate, a plurality of groups of stirring blades are uniformly arranged on the side wall of the stirring rod, the feeding pipe is provided with a feeding rod, the driving mechanism drives the feeding rod to rotate, a plurality of groups of refining blades are uniformly arranged on the periphery of the outer wall of the feeding rod, and the refining blades are positioned below the electromagnetic valve;
the side wall of the preheating hopper is provided with a cavity, a coiled pipe is uniformly wound in the cavity, the water inlet end of the coiled pipe extends to the outside of the bottom end of the preheating hopper and is provided with a hose, the other end of the hose is connected with a water outlet pipe at the bottom end of the shell, and the water outlet end of the coiled pipe extends to the top end of the side wall of the preheating hopper.
Preferably, the side wall of the discharging pipe is uniformly distributed with a plurality of groups of cooling fins.
Preferably, the bottom end of the feeding pipe is connected with a flange plate, and the feeding pipe is detachably connected with the feeding pipe in the machine body through the flange plate and bolts.
Preferably, a mounting plate is arranged above the inner wall of the preheating hopper, and the stirring rod is rotationally connected with the mounting plate through a bearing.
Preferably, the inside of the cavity in the preheating hopper is also provided with heat-insulating cotton, and the heat-insulating cotton surrounds the outer side of the coiled pipe.
Preferably, the driving mechanism comprises a shell and a belt transmission mechanism, the shell is arranged on the side wall of the preheating hopper, a motor is arranged at the top end of the interior of the shell, the output end of the motor is in transmission connection with one end of the belt transmission mechanism, and the other end of the belt transmission mechanism is connected with the top end of the stirring rod.
Preferably, the driving mechanism further comprises a rotating shaft and a tooth transmission mechanism, the rotating shaft is rotationally connected with the shell, the top end of the rotating shaft is connected with the belt transmission mechanism, the bottom end of the rotating shaft extends to the outside of the bottom end of the shell and is connected with the tooth transmission mechanism, and the other end of the tooth transmission mechanism is connected with the blanking rod.
Compared with the prior art, the technical scheme provided by the utility model has the following beneficial technical effects: according to the utility model, the waste heat generated after the raw materials in the machine body are heated and extruded can be absorbed and reused through the shell, the radiating fins and the coiled pipe, so that the raw materials are conveniently preheated, the heating time of the raw materials in the machine body is effectively shortened, the resources are saved, and the processing efficiency is improved; the raw materials can be fully stirred through the blanking mechanism, the blocking of caking is avoided or the follow-up insufficient heating of the raw materials in the machine body is avoided, the raw materials are preheated rapidly and uniformly, the raw materials blanking is enabled to be more uniform, and the extrusion efficiency is improved.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present utility model;
FIG. 2 is a schematic diagram of a blanking mechanism of the present utility model;
FIG. 3 is a schematic diagram of a preheating hopper according to the present utility model;
fig. 4 is a schematic diagram of a connection mode of a refining blade and a blanking rod.
Reference numerals: 1. a body; 101. a discharge pipe; 102. a housing; 103. a heat sink; 2. a feeding pipe; 201. an electromagnetic valve; 3. a preheating hopper; 301. thermal insulation cotton; 302. a serpentine tube; 303. a mounting plate; 4. a housing; 401. a rotating shaft; 402. a belt drive mechanism; 403. a tooth transmission mechanism; 5. a stirring rod; 501. stirring the leaves; 6. a blanking rod; 601. and (5) refining leaves.
Detailed Description
Example 1
As shown in fig. 1, the conical double-screw plastic extruder provided by the utility model comprises a machine body 1, wherein the machine body 1 comprises a discharge pipe 101, the discharge pipe 101 is arranged at an extrusion port of the machine body 1, a shell 102 is arranged outside the discharge pipe 101, and a discharging mechanism is arranged at the top end of a feeding pipe in the machine body 1;
it should be noted that, the machine body 1, the discharging pipe 101 and the housing 102 are in the prior art, and specific working principles and structures are recorded in detail in the patent with the issued publication number CN 212422118U;
furthermore, the side wall of the discharging pipe 101 is uniformly provided with a plurality of groups of cooling fins 103, and the cooling fins 103 are copper sheets, so that the heat conducting performance is high, and the heat of extruded materials in the discharging pipe 101 can be accelerated to be transferred into cooling water in the shell 102 through the cooling fins 103;
as shown in fig. 1, 2 and 4, the blanking mechanism comprises a feeding pipe 2 and a preheating hopper 3, an electromagnetic valve 201 is arranged at the joint of the feeding pipe 2 and the preheating hopper 3, so that the flow direction of extruded raw materials is conveniently controlled, a driving mechanism is arranged on the outer wall of the preheating hopper 3, a stirring rod 5 is arranged on the inner wall of the preheating hopper 3, the driving mechanism drives the stirring rod 5 to rotate, a plurality of groups of stirring blades 501 are uniformly arranged on the side wall of the stirring rod 5, a blanking rod 6 is arranged on the feeding pipe 2, the driving mechanism drives the blanking rod 6 to rotate, a plurality of groups of refining blades 601 are uniformly arranged on the periphery of the outer wall of the blanking rod 6, and the refining blades 601 are positioned below the electromagnetic valve 201;
further, the bottom end of the feeding pipe 2 is connected with a flange, and the feeding pipe 2 is detachably connected with a feeding pipe in the machine body 1 through the flange and bolts; a mounting plate 303 is arranged above the inner wall of the preheating hopper 3, and the stirring rod 5 is rotationally connected with the mounting plate 303 through a bearing;
further, the driving mechanism comprises a shell 4, a rotating shaft 401, a belt transmission mechanism 402 and a tooth transmission mechanism 403, the shell 4 is arranged on the side wall of the preheating hopper 3, a motor is arranged at the top end of the interior of the shell 4, the output end of the motor is in transmission connection with one end of the belt transmission mechanism 402, the belt transmission mechanism 402 is composed of two groups of belt wheels and belts, and the other end of the belt transmission mechanism 402 is connected with the top end of the stirring rod 5; the rotating shaft 401 is rotationally connected with the shell 4, the top end of the rotating shaft 401 is connected with the belt transmission mechanism 402, the bottom end of the rotating shaft 401 extends to the outside of the bottom end of the shell 4 and is connected with the tooth transmission mechanism 403, the other end of the tooth transmission mechanism 403 is connected with the blanking rod 6, the tooth transmission mechanism 403 is formed by two groups of bevel gears which are in meshed connection, the motor is started by the controller to drive the belt transmission mechanism 402 to rotate, the rotating shaft 401 and the stirring rod 5 rotate simultaneously, the rotating shaft 401 drives the blanking rod 6 to rotate through the tooth transmission mechanism 403, the blanking speed of the refining blade 601 can be adjusted by controlling the rotating speed of the motor, and blanking is more uniform, so that blockage is avoided;
in this embodiment, start organism 1 to the inside original batch of raw materials heat extrusion, simultaneously pour new batch of extrusion raw materials into preheating hopper 3, make puddler 5 and a plurality of group stirring leaf 501 carry out intensive mixing to extrusion raw materials through the controller start actuating mechanism, avoid raw materials caking to pile up the interference and follow-up in organism 1 inside heated extrusion, after the raw materials extrusion product in organism 1 is discharged by discharging pipe 101, open the valve port of solenoid valve 201 through the controller, make the new batch of raw materials of intensive mixing get into pan feeding pipe 2, puddler 5 and stirring leaf 501 continue to rotate and avoid the pan feeding pipe 2 to take place to block up with preheating hopper 3's junction, actuating mechanism drives pivot 401 simultaneously and rotates, and then drive the rotation of discharging rod 6 through pivot 401, tooth drive mechanism 403, make a plurality of groups refining leaf 601 rotate and overturn the raw materials that will fall, further make the raw materials evenly whereabouts, restart organism 1, new batch of raw materials gets into continuous extrusion work by the conveying pipe in organism 1.
Example two
As shown in fig. 1 to 3, in the conical twin-screw plastic extruder according to the first embodiment, a cavity is formed in a side wall of the preheating hopper 3, a coiled pipe 302 is uniformly wound in the cavity, a water inlet end of the coiled pipe 302 extends to the outside of the bottom end of the preheating hopper 3 and is provided with a hose, the other end of the hose is connected with a water outlet pipe at the bottom end of the housing 102, and a water outlet end of the coiled pipe 302 extends to the top end of the side wall of the preheating hopper 3;
further, the heat insulation material is arranged outside the hose between the coiled pipe 302 and the water outlet pipe on the shell 102, heat loss of water absorbing heat in the conveying process is avoided, the water pump is further arranged in the middle of the hose, the water after absorbing heat is conveniently conveyed, the heat insulation cotton 301 is further arranged inside the cavity in the preheating bucket 3, the heat insulation cotton 301 surrounds the outer side of the coiled pipe 302, and heat loss of hot water in the coiled pipe 302 is avoided.
In this embodiment, cooling water is injected from the water inlet at the top end of the casing 102, when the extruded product is discharged through the discharge pipe 101, the cooling water rapidly absorbs the waste heat of the extruded product, the hot water is conveyed into the serpentine pipe 302 through the water suction pump to heat the preheating hopper 3, along with the rotation of the stirring rod 5 and the stirring blade 501, the extruded raw materials can be heated uniformly, and after the raw materials are preheated uniformly, the raw materials can be fed through the rotating refining blade 601, so that the heating time of the raw materials in the machine body 1 is effectively shortened.
Working principle: waste heat after the raw materials in the machine body 1 are heated and extruded can be absorbed and reused through the shell 102, the radiating fins 103 and the coiled pipe 302, so that the raw materials are conveniently preheated, the heating time of the raw materials in the machine body 1 is effectively shortened, resources are saved, and the processing efficiency is improved; the raw materials can be fully stirred through the blanking mechanism, the blocking of caking is avoided or the follow-up insufficient heating of the raw materials in the machine body 1 is avoided, the raw materials are preheated rapidly and uniformly, the raw materials blanking is more uniform, and the extrusion efficiency is improved.
The embodiments of the present utility model have been described in detail with reference to the drawings, but the present utility model is not limited thereto, and various changes can be made within the knowledge of those skilled in the art without departing from the spirit of the present utility model.
Claims (7)
1. The conical double-screw plastic extruder comprises a machine body (1), and is characterized in that the machine body (1) comprises a discharge pipe (101), the discharge pipe (101) is arranged at an extrusion outlet of the machine body (1), a shell (102) is arranged outside the discharge pipe (101), and a discharging mechanism is arranged at the top end of a feeding pipe in the machine body (1);
the feeding mechanism comprises a feeding pipe (2) and a preheating hopper (3), an electromagnetic valve (201) is arranged at the joint of the feeding pipe (2) and the preheating hopper (3), a driving mechanism is arranged on the outer wall of the preheating hopper (3), a stirring rod (5) is arranged on the inner wall of the preheating hopper (3), the driving mechanism drives the stirring rod (5) to rotate, a plurality of groups of stirring blades (501) are uniformly arranged on the side wall of the stirring rod (5), a feeding rod (6) is arranged on the feeding pipe (2), the driving mechanism drives the feeding rod (6) to rotate, a plurality of groups of refining blades (601) are uniformly arranged on the periphery of the outer wall of the feeding rod (6), and the refining blades (601) are positioned below the electromagnetic valve (201);
the side wall of the preheating hopper (3) is provided with a cavity, a coiled pipe (302) is uniformly wound in the cavity, the water inlet end of the coiled pipe (302) extends to the outside of the bottom end of the preheating hopper (3) and is provided with a hose, the other end of the hose is connected with a water outlet pipe at the bottom end of the shell (102), and the water outlet end of the coiled pipe (302) extends to the top end of the side wall of the preheating hopper (3).
2. A conical twin screw plastic extruder according to claim 1, wherein the side walls of the discharge pipe (101) are evenly distributed with several sets of cooling fins (103).
3. The conical double-screw plastic extruder according to claim 1, wherein the bottom end of the feeding pipe (2) is connected with a flange, and the feeding pipe (2) is detachably connected with the feeding pipe in the machine body (1) through the flange and bolts.
4. A conical twin-screw plastic extruder according to claim 1, characterized in that a mounting plate (303) is mounted above the inner wall of the preheating hopper (3), and the stirring rod (5) is rotatably connected with the mounting plate (303) by means of bearings.
5. A conical twin-screw plastic extruder according to claim 1, characterized in that the interior of the cavity in the preheating hopper (3) is also provided with insulation wool (301), the insulation wool (301) surrounding the outside of the serpentine tube (302).
6. The conical double-screw plastic extruder according to claim 1, wherein the driving mechanism comprises a casing (4) and a belt transmission mechanism (402), the casing (4) is arranged on the side wall of the preheating hopper (3), a motor is arranged at the top end of the inside of the casing (4), the output end of the motor is in transmission connection with one end of the belt transmission mechanism (402), and the other end of the belt transmission mechanism (402) is connected with the top end of the stirring rod (5).
7. The conical double-screw plastic extruder according to claim 6, wherein the driving mechanism further comprises a rotating shaft (401) and a tooth transmission mechanism (403), the rotating shaft (401) is rotatably connected with the machine shell (4), the top end of the rotating shaft (401) is connected with the belt transmission mechanism (402), the bottom end of the rotating shaft (401) extends to the outside of the bottom end of the machine shell (4) and is connected with the tooth transmission mechanism (403), and the other end of the tooth transmission mechanism (403) is connected with the blanking rod (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321064186.8U CN219838175U (en) | 2023-05-06 | 2023-05-06 | Conical double-screw plastic extruder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321064186.8U CN219838175U (en) | 2023-05-06 | 2023-05-06 | Conical double-screw plastic extruder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219838175U true CN219838175U (en) | 2023-10-17 |
Family
ID=88306003
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321064186.8U Active CN219838175U (en) | 2023-05-06 | 2023-05-06 | Conical double-screw plastic extruder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219838175U (en) |
-
2023
- 2023-05-06 CN CN202321064186.8U patent/CN219838175U/en active Active
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