CN220349009U - Improved double-screw extruder for producing plastic products - Google Patents
Improved double-screw extruder for producing plastic products Download PDFInfo
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- CN220349009U CN220349009U CN202321958401.9U CN202321958401U CN220349009U CN 220349009 U CN220349009 U CN 220349009U CN 202321958401 U CN202321958401 U CN 202321958401U CN 220349009 U CN220349009 U CN 220349009U
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- motor
- cylinder body
- screw extruder
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- 238000010438 heat treatment Methods 0.000 claims abstract description 16
- 244000309464 bull Species 0.000 claims description 8
- 230000006978 adaptation Effects 0.000 claims description 2
- 230000008676 import Effects 0.000 claims 1
- 230000000149 penetrating effect Effects 0.000 abstract description 4
- 238000006243 chemical reaction Methods 0.000 abstract 1
- 239000002994 raw material Substances 0.000 description 12
- 238000012545 processing Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000006073 displacement reaction Methods 0.000 description 3
- 238000002844 melting Methods 0.000 description 3
- 230000008018 melting Effects 0.000 description 3
- 239000002245 particle Substances 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000010094 polymer processing Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
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- Extrusion Moulding Of Plastics Or The Like (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
Abstract
The utility model discloses an improved double-screw extruder for producing plastic products, which comprises a feeding device and a cylinder body positioned below the feeding device, wherein the feeding device comprises a feeding hopper, a rotating rod is arranged in the middle of an inlet of the feeding hopper through a supporting table, the top of the rotating rod is connected with a first motor, the upper part of the rod body of the rotating rod is provided with crushing blades, the lower part of the rod body of the rotating rod is provided with feeding pushing blades, two screws are arranged in the cylinder body, a first gear and a second gear are respectively arranged at the ends of the two screws, which are close to the feeding device, the first gear is meshed with a driving gear arranged at the output end of the second motor, a shell movably arranged at the end part of the cylinder body is arranged outside the second motor, side plates are arranged on the cylinder body at two sides of the shell, push rods penetrating through and abutting against the shell are arranged on the side plates, and a heating cavity is sleeved outside the cylinder body, which is far away from the feeding device. The utility model realizes the purpose of random conversion between the same-direction rotation and different-direction rotation of the screw rod, and has simple operation.
Description
Technical Field
The utility model relates to the technical field of plastic production, in particular to an improved double-screw extruder for producing plastic products.
Background
The double screw plastic extruder is high quality and high efficiency plastic extruding equipment, is the most common machine in modified plastic industry, and is widely used in polymer processing industry and other production and processing fields. The twin-screw extruder has various types, and can be divided into two types of meshed type and non-meshed type, and the meshed type twin-screw extruder can be divided into two types of co-rotating and counter-rotating.
The double screw extruder comprises a feeding system, a screw system, a heating and cooling system, a control system and the like, which are matched with each other to finish the processes of raw material processing, melting, mixing and extrusion molding. The traditional double-screw extruder can not realize the switching between the same-direction rotation and different-direction rotation, so that a plurality of machines with different rotation directions are needed to be purchased in factories, and the input cost is increased.
Disclosure of Invention
The utility model aims to provide an improved double-screw extruder for producing plastic products, which realizes random switching between the same-direction rotation and different-direction rotation of double screws.
In order to achieve the above purpose, the utility model provides an improved double-screw extruder for producing plastic products, which comprises a feeding device and a cylinder body positioned below the feeding device, wherein the feeding device comprises a feeding hopper, a rotating rod is arranged in the middle of an inlet of the feeding hopper through a supporting table, the top of the rotating rod is connected with a first motor, the upper part of the rod body of the rotating rod is provided with crushing blades, the lower part of the rod body of the rotating rod is provided with feeding pushing blades, two screws are arranged in the cylinder body, the two screws are respectively provided with a first gear and a second gear close to the end of the feeding device, the first gears are meshed with a driving gear arranged at the output end of the second motor, a shell movably arranged at the end of the cylinder body is arranged outside the second motor, side plates are arranged on the cylinder body at two sides of the shell, push rods penetrating through and abutting against the shell are arranged on the side plates, and a heating cavity is sleeved outside the cylinder body far away from the feeding device.
Preferably, the supporting table is fixed on the supporting bars at the upper end of the feeding hopper through two sides, the first motor is located on the supporting table, the output end of the first motor is connected with the rotating rod, the crushing blades are provided with a plurality of blades, and the whole feeding pushing blades are conical and have a width suitable for the feeding hopper.
Preferably, the two screws are horizontally engaged, the first gear is meshed with the second gear, the driving gear is located below the first gear, a gear shaft of the first gear penetrates through the side wall of the cylinder body and extends to the upper portion of the shell, the first gear penetrates through the position of the cylinder body to form a sliding hole, the first gear is separated from the second gear by sliding the gear shaft, and then the shell and the second motor are pushed to enable the driving gear to be located between and meshed with the first gear and the second gear, so that the screw is converted from the same-direction rotation to the different-direction rotation.
Preferably, a heating rod attached to the outer wall of the cylinder body is arranged in the heating cavity.
Preferably, a spring is arranged between the shell and the side plate, and a plurality of balls are arranged at the joint of the shell and the cylinder body.
Preferably, the push rod is in threaded connection with the side plate.
Therefore, the improved double-screw extruder for producing plastic products adopts the structure, the crushing blades are matched with the feeding pushing blades, so that raw materials are subjected to primary processing at the position, crushed into smaller particles and conveyed to the cylinder, the raw materials can be fully melted at the outlet by the arrangement of the heating cavity, the shell and the cylinder are movably connected through the balls, the shell can smoothly move, the spring can provide resistance for the shell, excessive displacement of the driving gear is prevented, the first gear is separated from the second gear through the sliding of the gear shaft, and the switching from the different-direction rotation of the screw to the same-direction rotation is realized.
The technical scheme of the utility model is further described in detail through the drawings and the embodiments.
Drawings
FIG. 1 is a cross-sectional view of an embodiment of an improved twin screw extruder for producing plastic articles according to the present utility model;
FIG. 2 is a schematic view of an embodiment of an improved twin screw extruder for producing plastic articles according to the present utility model in which a first gear, a second gear and a drive gear are assembled;
fig. 3 is a top view of a feed hopper of an embodiment of an improved twin screw extruder for producing plastic articles according to the present utility model.
Reference numerals:
1. a feeding device; 2. a cylinder; 3. a feed hopper; 4. a support table; 5. a rotating rod; 6. a first motor; 7. crushing leaves; 8. a feed pushing blade; 9. a screw; 10. a first gear; 101. a gear shaft; 11. a second gear; 12. a second motor; 13. a drive gear; 14. a housing; 15. a side plate; 16. a push rod; 17. a heating chamber; 18. a heating rod; 19. a support bar; 20. a ball; 21. and (3) a spring.
Detailed Description
The technical scheme of the utility model is further described below through the attached drawings and the embodiments.
Unless defined otherwise, technical or scientific terms used herein should be given the ordinary meaning as understood by one of ordinary skill in the art to which this utility model belongs. The terms "first," "second," and the like, as used herein, do not denote any order, quantity, or importance, but rather are used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that elements or items preceding the word are included in the element or item listed after the word and equivalents thereof, but does not exclude other elements or items. The terms "connected" or "connected," and the like, are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", etc. are used merely to indicate relative positional relationships, which may also be changed when the absolute position of the object to be described is changed.
Examples
An improved twin screw extruder for producing plastic articles, as shown in fig. 1, includes a feeder 1 and a barrel 2 positioned below the feeder 1. The feeding device 1 comprises a feeding hopper 3, a rotating rod 5 is arranged in the middle of the inlet of the feeding hopper 3 through a supporting table 4, as shown in fig. 3, the supporting table 4 is fixed by supporting bars 19 fixed at the upper end of the feeding hopper 3 on two sides, the thickness of the supporting table 4 is larger than that of the supporting bars 19, and the mechanical strength of the first motor 6 and the rotating rod 5 is increased. The first motor 6 is located supporting bench 4 top and the bull stick 5 that runs through supporting bench 4 is connected to the output of first motor, and the bull stick 5 rotation is driven to first motor 6, and the pole body upper portion of bull stick 5 is equipped with a plurality of crushing leaf 7 and bull stick lower part and is equipped with feeding propelling movement blade 8, and feeding propelling movement blade 8 is whole spiral toper and its width adaptation feeder hopper 3, the raw materials is smashed leaf 7 through smashing, the follow-up processing of being convenient for, then is carried to barrel 2 by feeding propelling movement blade 8.
Two horizontally matched screws 9 are arranged in the cylinder 2, blades on the screws 9 are matched, mutually rotate and squeeze, and the raw materials are conveyed to an output end and are mixed and melted. As shown in fig. 2, two screw rods 9 are respectively provided with a first gear 10 and a second gear 11 near the end of the feeding device 1, when the screw rods 9 rotate in different directions, the first gear 10 is meshed with the second gear 11, so that the use of the gears is reduced, the replacement frequency of parts is reduced, the production cost is reduced, and meanwhile, the production efficiency is improved. The first gear 10 is meshed with a driving gear 13 arranged at the output end of the second motor 12, the driving gear 13 is positioned below the first gear 10, the driving gear 13 drives the first gear 10, and the first gear 10 drives the second gear 11 to rotate.
The second motor 12 is externally provided with the shell 14 movably arranged at the end part of the cylinder body 2, and a plurality of balls 20 are arranged at the joint of the shell 14 and the cylinder body 2, so that the shell 14 can be conveniently moved, the labor is saved, the clamping is prevented, the abrasion between the shell 14 and the cylinder body 2 is avoided, and the service life of the machine is prolonged. The provision of the housing 14 protects the second motor 12 while facilitating subsequent handling of the second motor 12. The cylinder body 2 on two sides of the shell 14 is provided with the side plates 15, the side plates 15 are provided with the push rods 16 penetrating through and abutting against the shell 14, and the push rods 16 are in threaded connection with the side plates 15, so that the push rods 16 can be conveniently rotated and fixed at any time, and manual operation is facilitated.
The gear shaft 101 of the first gear 10 penetrates through the side wall of the cylinder 2 and extends to the upper side of the shell 14, a transverse sliding hole is formed in the position, penetrating through the cylinder 2, of the first gear 10, the length of the sliding hole is larger than the width of the gear shaft 101, and the gear shaft 101 is given a movable space. When the screw 9 is required to rotate in the same direction, the sliding gear shaft 101 separates the first gear 10 from the second gear 11, and then the push rod 16 is rotated to push the housing 14 and the second motor 12, so that the driving gear 13 moves between the first gear 10 and the second gear 11 and is meshed with the two gears respectively. The driving gear 13 and the first gear 10 move in position, so that the purpose of converting the same-direction rotation and different-direction rotation of the screw 9 is realized. A spring 21 is installed between the housing 14 and the side plate 15, and the spring 21 is arranged to resist the force of the housing 14 when pushed, so as to prevent the excessive displacement of the driving gear 13.
The barrel 2 is kept away from the outside cover of feed arrangement 1 and is established heating chamber 17, is equipped with the heating rod 18 of attaching in barrel 2 outer wall in the heating chamber 17, and heating chamber 17 is located the output part of barrel 2, prevents the melting in advance of raw materials, increases the cohesiveness of raw materials and barrel 2 inner wall, brings the difficulty for the transportation of raw materials, heats the melting when the raw materials will be carried to the export, has both guaranteed the machining efficiency of raw materials, has guaranteed conveying efficiency again.
Therefore, the improved double-screw extruder for producing plastic products adopts the structure, the crushing blades are matched with the feeding pushing blades, so that raw materials are subjected to primary processing at the position, crushed into smaller particles and conveyed to the cylinder, the raw materials can be fully melted at the outlet by the arrangement of the heating cavity, the shell and the cylinder are movably connected through the balls, the shell can smoothly move, the spring can provide resistance for the shell, excessive displacement of the driving gear is prevented, the first gear is separated from the second gear through the sliding of the gear shaft, and the switching from the different-direction rotation of the screw to the same-direction rotation is realized.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model and not for limiting it, and although the present utility model has been described in detail with reference to the preferred embodiments, it will be understood by those skilled in the art that: the technical scheme of the utility model can be modified or replaced by the same, and the modified technical scheme cannot deviate from the spirit and scope of the technical scheme of the utility model.
Claims (6)
1. An improved twin-screw extruder for producing plastic products, which is characterized in that: including feed arrangement and be located the barrel of feed arrangement below, feed arrangement includes the feeder hopper, the bull stick is installed through the brace table in feeder hopper import department middle part, first motor is connected at the bull stick top, bull stick shaft upper portion is equipped with smashes leaf, lower part is equipped with feeding propelling movement blade, install two screws in the barrel, two the screw rod is close to the feed arrangement end is equipped with first gear, second gear respectively, first gear with set up in the driving gear meshing of second motor output, the outside movable mounting that is equipped with of second motor in the shell of barrel tip, be equipped with the curb plate on the barrel of shell both sides, be equipped with on the curb plate and run through and the butt the push rod of shell, the barrel is kept away from the outside cover of feed arrangement is established the heating chamber.
2. An improved twin screw extruder for producing plastic articles as defined in claim 1 wherein: the supporting bench is fixed in through both sides the support bar of feeder hopper upper end, first motor is located the supporting bench top just the output of first motor is connected the bull stick, it sets up a plurality of to smash the leaf, feeding propelling movement blade is whole to be toper and its width adaptation the feeder hopper.
3. An improved twin screw extruder for producing plastic articles as defined in claim 1 wherein: the two screw rods are horizontally matched, the first gear is meshed with the second gear, the driving gear is located below the first gear, a gear shaft of the first gear penetrates through the side wall of the cylinder body and extends to the upper portion of the shell, the first gear penetrates through the position of the cylinder body to form a sliding hole, the gear shaft is slid to separate the first gear from the second gear, and then the shell and the second motor are pushed to enable the driving gear to be located between and meshed with the first gear and the second gear, so that the screw rods can be converted from the same-direction rotation to the different-direction rotation.
4. An improved twin screw extruder for producing plastic articles as defined in claim 1 wherein: and a heating rod attached to the outer wall of the cylinder body is arranged in the heating cavity.
5. An improved twin screw extruder for producing plastic articles as defined in claim 1 wherein: a spring is arranged between the shell and the side plate, and a plurality of balls are arranged at the joint of the shell and the cylinder body.
6. An improved twin screw extruder for producing plastic articles as defined in claim 1 wherein: the push rod is in threaded connection with the side plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321958401.9U CN220349009U (en) | 2023-07-25 | 2023-07-25 | Improved double-screw extruder for producing plastic products |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321958401.9U CN220349009U (en) | 2023-07-25 | 2023-07-25 | Improved double-screw extruder for producing plastic products |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220349009U true CN220349009U (en) | 2024-01-16 |
Family
ID=89483803
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321958401.9U Active CN220349009U (en) | 2023-07-25 | 2023-07-25 | Improved double-screw extruder for producing plastic products |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220349009U (en) |
-
2023
- 2023-07-25 CN CN202321958401.9U patent/CN220349009U/en active Active
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