CN215969972U

CN215969972U - Plastic particle double-screw extruder

Info

Publication number: CN215969972U
Application number: CN202122414952.6U
Authority: CN
Inventors: 吴保强
Original assignee: Angreen Dongguan New Materials Technology Co ltd
Current assignee: Angreen Dongguan New Materials Technology Co ltd
Priority date: 2021-10-08
Filing date: 2021-10-08
Publication date: 2022-03-08
Anticipated expiration: 2031-10-08

Abstract

The utility model relates to the technical field of plastic extruders and discloses a plastic particle double-screw extruder which comprises a base, wherein a supporting seat is fixedly connected to the top of the base, a shell is fixedly connected to the top of the supporting seat, a double-screw driving mechanism is arranged in the shell, a protection mechanism is arranged on the right side of the shell, and the double-screw driving mechanism comprises a motor, a speed changing device, a rotating shaft, a first bevel gear, a second bevel gear, a third bevel gear, a fourth bevel gear, a fifth bevel gear, a first screw and a second screw. This plastic pellet double screw extruder drives first screw rod and second screw rod in the casing through double screw drive mechanism and rotates, pours liquid plastics into the casing into from the feed inlet, then carries to the left end die head by the double screw, and because first screw rod and second screw rod are the taper and make and be close more pressure big more from the die head to extrude the formation plastic pellet with plastics through the die head, both saved the energy consumption and improved the operating efficiency again.

Description

Plastic particle double-screw extruder

Technical Field

The utility model relates to the technical field of plastic extruders, in particular to a plastic particle double-screw extruder.

Background

In the plastic extrusion molding equipment, the plastic extruder is generally called a main machine, and the subsequent equipment matched with the plastic extruder is called an auxiliary machine. After the development of the plastic extruder for more than 100 years, multiple types of double screws, multiple screws and even no screws and the like are derived from the original single screw. The plastic extruder (main machine) can be matched with various plastic forming auxiliary machines for pipe material, film, bar material, monofilament, flat filament, packing belt, extruding net, plate (sheet) material, profiled bar, granulating and cable covering, etc. to form various plastic extrusion forming production lines to produce various plastic products. Therefore, the plastic extrusion molding machine is one of the machines widely used in the plastic processing industry at present or in the future.

The existing plastic extruder is provided with a thermoplastic mechanism, a compression mechanism enables the whole body to be large, the energy consumption is high, and if the hot melting mechanism is separated and the extrusion efficiency is increased, the thermoplastic mechanism is not needed.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a plastic particle double-screw extruder to solve the problems in the background technology.

In order to achieve the purpose, the utility model provides the following technical scheme: the plastic particle double-screw extruder comprises a base, wherein a supporting seat is fixedly connected to the top of the base, a shell is fixedly connected to the top of the supporting seat, a double-screw driving mechanism is arranged in the shell, a protection mechanism is arranged on the right side of the shell, a die head is arranged at the left end of the shell, a feeding port is fixedly connected to the top of the shell, the double-screw driving mechanism comprises a motor, a speed changing device, a rotating shaft, a first bevel gear, a second bevel gear, a third bevel gear, a fourth bevel gear, a fifth bevel gear, a first screw and a second screw, the motor is fixedly connected to the right side of the top of the supporting seat, the speed changing device is arranged on the left side of the motor, the rotating shaft is rotatably connected to the center of the left side of the speed changing device, the first bevel gear is fixedly connected to the left side of the outer ring of the rotating shaft, the second bevel gear is meshed with the back of the first bevel gear, the third bevel gear is meshed with the front of the first bevel gear, the fourth bevel gear is meshed with the back of the second bevel gear, the fifth bevel gear is meshed with the front of the third bevel gear, the first screw is rotatably connected to the right side of the shell close to the back, and the second screw is rotatably connected to the right side of the shell close to the front.

Preferably, protection machanism is including protective housing, cooling tube and fin, protective housing fixed connection is on supporting seat top right side, cooling tube fixed connection is in the middle of the protective housing back, fin fixed connection is in the cooling tube outer lane.

Preferably, the left end of the rotating shaft penetrates through the center of the first bevel gear and extends to the center of the left side in the protective box, and the rotating shaft is rotatably connected to the center of the left side in the protective box through a bearing so that the rotating shaft can rotate.

Preferably, the left side is close to the dorsal rotation and is connected with the bull stick in the guard box, the bull stick right-hand member runs through second bevel gear left side center and extends to the guard box in the right side be close to the back, just bull stick fixed connection is in second bevel gear center to second bevel gear can rotate.

Preferably, the left side is close to the back and rotates in the guard box and is connected with the bull stick, the bull stick right-hand member runs through fourth bevel gear left side center and extends to the guard box in the right side be close to the back, just bull stick fixed connection is in fourth bevel gear center to fourth bevel gear can rotate.

Preferably, the left side is close to the front and rotates in the guard box and be connected with the bull stick, the bull stick right-hand member runs through third bevel gear left side center and extends to the guard box in the right side be close to the front, just bull stick fixed connection is in third bevel gear center to the third bevel gear can rotate.

Preferably, the left side is close to the front and is rotated and be connected with the bull stick in the guard box, the bull stick right-hand member runs through fifth bevel gear left side center and extends to the guard box in the right side be close to the front, just bull stick fixed connection is in fifth bevel gear center to fifth bevel gear can rotate.

Compared with the prior art, the utility model provides a plastic particle double-screw extruder which has the following beneficial effects:

1. this plastic pellet twin-screw extruder, when this device uses, the motor rotates and makes first bevel gear rotate through the pivot after slowing down through the speed change gear, then make second bevel gear and the third bevel gear that meshes in first bevel gear rotate simultaneously, thereby drive fourth bevel gear and fifth bevel gear and rotate, because first screw rod and second screw rod right-hand member fixed connection respectively in fourth bevel gear and fifth bevel gear left side center, make first screw rod and second screw rod rotate simultaneously, pour liquid plastics into the casing from the feed inlet, then carry to the left end die head by the twin-screw, because first screw rod and second screw rod are the taper and make the pressure that is nearer to the die head bigger, thereby extrude the plastics through the die head and form plastic pellet, both saved the energy consumption and improved operating efficiency.

2. This plastic pellet double screw extruder, when equipment operation, because gear and bearing rotation in the protective housing can produce great heat, the heat dredges to the outside from the protective housing is inside through cooling tube and fin in, reduction loss.

Drawings

FIG. 1 is a schematic front view of the present invention;

FIG. 2 is a schematic top view of the present invention;

FIG. 3 is a schematic top view of the cross-sectional structure of the present invention;

fig. 4 is an enlarged schematic view of a portion a in fig. 3.

In the figure: 1. a base; 2. a supporting seat; 3. a housing; 4. a double screw drive mechanism; 401. a motor; 402. a speed change device; 403. a rotating shaft; 404. a first bevel gear; 405. a second bevel gear; 406. a third bevel gear; 407. a fourth bevel gear; 408. a fifth bevel gear; 409. a first screw; 410. a second screw; 5. a protection mechanism; 501. a protective box; 502. a radiating pipe; 503. a fin; 6. a feed port; 7. a die head.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Referring to fig. 1-4, the present invention provides a technical solution: a plastic particle double-screw extruder comprises a base 1, wherein a supporting seat 2 is fixedly connected to the top of the base 1, a shell 3 is fixedly connected to the top of the supporting seat 2, a double-screw driving mechanism 4 is arranged in the shell 3, a protection mechanism 5 is arranged on the right side of the shell 3, a die head 7 is arranged at the left end of the shell 3, a feeding port 6 is fixedly connected to the top of the shell 3, the double-screw driving mechanism 4 comprises a motor 401, a speed changing device 402, a rotating shaft 403, a first bevel gear 404, a second bevel gear 405, a third bevel gear 406, a fourth bevel gear 407, a fifth bevel gear 408, a first screw 409 and a second screw 403, the motor 401 is fixedly connected to the right side of the top of the supporting seat 2, the speed changing device 402 is arranged on the left side of the motor 401, the rotating shaft is rotatably connected to the center of the left side of the speed changing device 402, the first bevel gear 404 is fixedly connected to the left side of the outer ring of the rotating shaft 403, the second bevel gear 405 is meshed to the back of the first bevel gear 404, a third bevel gear 406 is meshed with the front side of the first bevel gear 404, a fourth bevel gear 407 is meshed with the back side of the second bevel gear 405, a fifth bevel gear 408 is meshed with the front side of the third bevel gear 406, a first screw 409 is rotatably connected to the right side of the shell 3 near the back side, a second screw 410 is rotatably connected to the right side of the shell 3 near the front side, the protection mechanism 5 comprises a protection box 501, a heat dissipation pipe 502 and a fin 503, the protection box 501 is fixedly connected to the right side of the top of the supporting base 2, the heat dissipation pipe 502 is fixedly connected to the middle of the back side of the protection box 501, the fin 503 is fixedly connected to the outer ring of the heat dissipation pipe 502, the left end of the rotating shaft 403 penetrates through the center of the first bevel gear 404 and extends to the center of the left side in the protection box 501, the rotating shaft 403 is rotatably connected to the center of the left side in the protection box 501 near the back side through a bearing, the right end of the rotating shaft penetrates through the center of the left side of the second bevel gear 405 and extends to the right side of the protection box 501 near the back side, and the rotating rod is fixedly connected to the center of the second bevel gear 405 so that the second bevel gear 405 can rotate, the rotating rod is rotatably connected to the left side of the inside of the protection box 501 close to the back side, the right end of the rotating rod penetrates through the left side center of the fourth bevel gear 407 and extends to the right side of the inside of the protection box 501 close to the back side, the rotating rod is fixedly connected to the center of the fourth bevel gear 407 so that the fourth bevel gear 407 can rotate, the rotating rod is rotatably connected to the left side of the inside of the protection box 501 close to the front side, the right end of the rotating rod penetrates through the left side center of the third bevel gear 406 and extends to the right side of the inside of the protection box 501 close to the front side, the rotating rod is fixedly connected to the center of the third bevel gear 406 so that the third bevel gear 406 can rotate, the rotating rod is rotatably connected to the left side of the inside of the protection box 501 close to the front side, the right end of the rotating rod penetrates through the left side center of the fifth bevel gear 408 and extends to the right side of the inside of the protection box 501 close to the front side, and the rotating rod is fixedly connected to the center of the fifth bevel gear 408, so that the fifth bevel gear 408 can rotate, when the device is used, the motor 401 rotates and rotates the first bevel gear 404 through the rotating shaft 403 after being decelerated by the speed changing device 402, then the second bevel gear 405 and the third bevel gear 406 meshed with the first bevel gear 404 rotate simultaneously, so as to drive the fourth bevel gear 407 and the fifth bevel gear 408 to rotate, as the right ends of the first screw 409 and the second screw 410 are fixedly connected to the left centers of the fourth bevel gear 407 and the fifth bevel gear 408 respectively, the first screw 409 and the second screw 410 rotate simultaneously, liquid plastic is poured into the shell 3 from the feeding port 6 and then conveyed to the left end die head 7 by the twin screws, and as the first screw 409 and the second screw 410 are tapered, the closer to the die head 7, the pressure is larger, so that the plastic is extruded out through the die head 7 to form plastic particles, thereby saving energy consumption and improving operation efficiency.

In the practical operation process, when the device is used, the motor 401 rotates and rotates the first bevel gear 404 through the rotating shaft 403 after being decelerated by the speed changing device 402, then the second bevel gear 405 and the third bevel gear 406 engaged with the first bevel gear 404 rotate simultaneously, so as to drive the fourth bevel gear 407 and the fifth bevel gear 408 to rotate, because the right ends of the first screw 409 and the second screw 410 are fixedly connected to the left centers of the fourth bevel gear 407 and the fifth bevel gear 408 respectively, so that the first screw 409 and the second screw 410 rotate simultaneously, liquid plastic is poured into the housing 3 from the feeding port 6 and then is conveyed to the left end die head 7 by the twin screws, because the first screw 409 and the second screw 410 are tapered, the closer to the die head 7, the higher pressure is, so that the plastic is extruded out to form plastic particles through the die head 7, and when the equipment is operated, because the gears and bearings in the protection box 501 rotate, higher heat is generated, heat is conducted from the inside of the shield case 501 to the outside through the heat pipe 502 and the fins 503, and loss is reduced.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. The term "comprising", without further limitation, means that the element so defined is not excluded from the group consisting of additional identical elements in the process, method, article, or apparatus that comprises the element.

Claims

1. Plastic granules twin-screw extruder, including base (1), its characterized in that: the top of the base (1) is fixedly connected with a supporting seat (2), the top of the supporting seat (2) is fixedly connected with a shell (3), a double-screw driving mechanism (4) is arranged in the shell (3), a protection mechanism (5) is arranged on the right side of the shell (3), a die head (7) is arranged at the left end of the shell (3), and a feeding port (6) is fixedly connected with the top of the shell (3);

the double-screw driving mechanism (4) comprises a motor (401), a speed changing device (402), a rotating shaft (403), a first bevel gear (404), a second bevel gear (405), a third bevel gear (406), a fourth bevel gear (407), a fifth bevel gear (408), a first screw (409) and a second screw (410), wherein the motor (401) is fixedly connected to the right side of the top of the supporting seat (2), the speed changing device (402) is arranged on the left side of the motor (401), the rotating shaft (403) is rotatably connected to the center of the left side of the speed changing device (402), the first bevel gear (404) is fixedly connected to the left side of the outer ring of the rotating shaft (403), the second bevel gear (405) is meshed with the back side of the first bevel gear (404), the third bevel gear (406) is meshed with the front side of the first bevel gear (404), and the fourth bevel gear (407) is meshed with the back side of the second bevel gear (405), the fifth bevel gear (408) is meshed with the front surface of the third bevel gear (406), the first screw (409) is rotatably connected to the right side of the shell (3) close to the back surface, and the second screw (410) is rotatably connected to the right side of the shell (3) close to the front surface.

2. The plastic particle twin screw extruder as claimed in claim 1, characterized in that: protection machanism (5) are including protecting box (501), cooling tube (502) and fin (503), protecting box (501) fixed connection is on supporting seat (2) top right side, in the middle of cooling tube (502) fixed connection is in protecting box (501) back, fin (503) fixed connection is in cooling tube (502) outer lane.

3. The plastic particle twin screw extruder as claimed in claim 2, characterized in that: the left end of the rotating shaft (403) penetrates through the center of the first bevel gear (404) and extends to the center of the inner left side of the protective box (501), and the rotating shaft (403) is rotatably connected to the center of the inner left side of the protective box (501) through a bearing.

4. The plastic particle twin screw extruder as claimed in claim 2, characterized in that: the left side is close to the dorsal rotation in protective housing (501) and is connected with the bull stick, the bull stick right-hand member runs through second bevel gear (405) left side center and extends to protective housing (501) in the right side be close to the back, just bull stick fixed connection is in second bevel gear (405) center.

5. The plastic particle twin screw extruder as claimed in claim 2, characterized in that: the left side is close to the back and rotates in protective housing (501) and is connected with the bull stick, the bull stick right-hand member runs through fourth bevel gear (407) left side center and extends to the protective housing (501) in the right side be close to the back, just bull stick fixed connection is in fourth bevel gear (407) center.

6. The plastic particle twin screw extruder as claimed in claim 2, characterized in that: the left side is close to the front in protective housing (501) and rotates and be connected with the bull stick, the bull stick right-hand member runs through third bevel gear (406) left side center and extends to the right side and is close to the front in protective housing (501), just bull stick fixed connection is in third bevel gear (406) center.

7. The plastic particle twin screw extruder as claimed in claim 2, characterized in that: the left side is close to the front in protective housing (501) and rotates and be connected with the bull stick, the bull stick right-hand member runs through fifth bevel gear (408) left side center and extends to the right side and is close to the front in protective housing (501), just bull stick fixed connection is in fifth bevel gear (408) center.