CN215550765U

CN215550765U - Novel planetary screw extruder of area stirring feed

Info

Publication number: CN215550765U
Application number: CN202121324751.0U
Authority: CN
Inventors: 彭广亚
Original assignee: Foshan Keying Machinery Co ltd
Current assignee: Foshan Keying Machinery Co ltd
Priority date: 2021-06-15
Filing date: 2021-06-15
Publication date: 2022-01-18
Anticipated expiration: 2031-06-15

Abstract

The utility model provides a novel planetary screw extruder with stirring and feeding functions, which comprises a base, a motor, a feeding assembly, a main screw, a machine barrel a, a machine barrel b, a die head and a planetary screw, wherein the motor is arranged on the base; the feeding assembly comprises a second motor and a hopper which are arranged on the base; the second motor penetrates through the hopper and is connected with a bevel gear; a second bevel gear is meshed with the bevel gear; the lower end of the second bevel gear is provided with an electric telescopic rod; the electric telescopic rod is rotationally connected with the hopper through the limiting frame; the lower end of the electric telescopic rod is provided with a threaded rotating rod; the machine barrel a is connected with a motor through flange mounting; the hopper is communicated and connected with the machine barrel a; the die head is arranged at the tail part of the machine barrel b; the main screw is arranged in the machine barrel a and the machine barrel b; the planetary screws are uniformly distributed between the main screw and the machine barrel b; the planetary screw is simultaneously meshed with the machine barrel b and the main screw; the machine barrel b is fixed on the base through a support frame; the problem that a single-screw extruder has melt retention to cause coke materials is reduced, the feeding effect is good, and the plasticizing quality is improved.

Description

Novel planetary screw extruder of area stirring feed

Technical Field

The utility model provides a screw extruder, and particularly relates to a novel planetary screw extruder with stirring feeding.

Background

PVC (polyvinyl chloride) is thermoplastic resin polymerized by vinyl chloride under the action of an initiator, is a high polymer material which uses a chlorine atom to replace a hydrogen atom in polyethylene and is used for manufacturing pipes, rods, plates, films, hollow products, various industrial and agricultural products and daily necessities, and for the processing of PVC, an extruder is required to extrude a melt with high plasticizing quality and uniform mixing, ensure that the melt has short residence time and can effectively exhaust gas, but at present, common PVC is processed by a single-screw extruder, and the single-screw extruder has melt retention, so that the problem of coke charge can be caused, secondly, the structure extruded by a planetary screw extruder is complex, the feeding effect is poor, the feeding is uneven, so the plasticizing quality is influenced, and unnecessary economic loss is caused, and the novel planetary screw extruder with stirring feeding provided by the utility model, the problems can be well solved.

SUMMERY OF THE UTILITY MODEL

The novel planetary screw extruder with stirring feeding provided by the utility model is simple in structure and convenient to use, reduces the problem of coke material caused by melt retention of a single screw extruder, has a good feeding effect, and improves the plasticizing quality.

The utility model provides a novel planetary screw extruder with stirring and feeding functions, which comprises a base, a motor, a feeding assembly, a main screw, a machine barrel a, a machine barrel b, a die head and a planetary screw, wherein the motor is arranged on the base; the feeding assembly comprises a second motor and a hopper which are arranged on the base; the output end of the second motor penetrates through the hopper to be connected with a bevel gear; a second bevel gear is meshed with the bevel gear; the lower end of the second bevel gear is connected with an electric telescopic rod; the electric telescopic rod is rotationally connected with the hopper through the limiting frame; the lower end of the electric telescopic rod is fixedly connected with a threaded rotating rod; the motor is fixedly connected to the upper end of the base; the machine barrel a is connected with a motor through flange mounting; the hopper is communicated and connected with the cylinder a; the barrel b and the barrel a are installed together through threaded connection; the die head is arranged at the tail part of the machine barrel b; the main screw is arranged in the machine barrel a and the machine barrel b; the planetary screws are uniformly distributed between the main screw and the machine barrel b; the planetary screw is simultaneously meshed with the machine barrel b and the main screw; the machine barrel b is fixed on the base through a support frame; the outer walls of barrel a and barrel b are both provided with electric heating devices.

The lower end of the threaded rotating rod is in a pointed shape.

The limiting frame comprises a limiting ring fixedly connected with the electric telescopic rod and a sleeve ring which is matched with the limiting ring and is fixedly connected with the hopper through a connecting shaft.

And the inner wall of the machine barrel b is provided with a spiral groove.

The thread section of the rear half section of the main screw rod is in an involute tooth form, and the spiral is a multi-thread.

The section of the screw thread of the planetary screw is in an involute tooth form, and the screw thread is a multi-head screw thread.

The lower end of the base is provided with a rubber cushion.

The utility model has the beneficial effects that: the novel planetary screw extruder with stirring feeding provided by the utility model is simple in structure and convenient to use, reduces the problem of coke material caused by melt retention of a single screw extruder, has a good feeding effect, and improves the plasticizing quality.

Drawings

FIG. 1 is a cross-sectional view of a novel planetary screw extruder with an agitated feed according to the present invention.

FIG. 2 is a cross-sectional view taken at A-A of a novel planetary screw extruder with an agitated feed according to the present invention.

FIG. 3 is a cross-sectional view of a novel limiting frame of a planetary screw extruder with stirring feeding according to the utility model.

FIG. 4 is another azimuthal cross-sectional view at the feed assembly of a novel planetary screw extruder with an agitated feed according to the utility model.

(1, base; 2, motor; 3, main screw; 4, machine barrel a; 5, machine barrel b; 6, die head; 7, planetary screw; 8, supporting frame; 9, second motor; 10, hopper; 11, bevel gear; 12, second bevel gear; 13, electric telescopic rod; 14, threaded rotating rod; 15, limiting ring; 16, connecting shaft; 17, lantern ring; 18, rubber soft cushion)

Detailed Description

The utility model is further described below with reference to the accompanying drawings.

The novel planetary screw extruder with stirring feed shown in the figures 1, 2, 3 and 4 is characterized in that: comprises a base 1, a motor 2, a feeding component, a main screw 3, a machine barrel a4, a machine barrel b5, a die head 6 and a planetary screw 7; the feeding assembly comprises a second motor 9 and a hopper 10 which are arranged on the base 1; the output end of the second motor 9 penetrates through the hopper 10 and is connected with a bevel gear 11; a second bevel gear 12 is meshed with the bevel gear 11; the lower end of the second bevel gear 12 is connected with an electric telescopic rod 13; the electric telescopic rod 13 is rotatably connected with the hopper 10 through a limiting frame; the lower end of the electric telescopic rod 13 is fixedly connected with a threaded rotating rod 14; the motor 2 is fixedly connected to the upper end of the base 1; the cylinder a4 is connected with the motor 2 through flange mounting; the hopper 10 is communicated with a cylinder a 4; the barrel b5 and the barrel a4 are mounted together by a threaded connection; the die head 6 is arranged at the tail part of a machine barrel b 5; the main screw 3 is mounted in barrel a4 and barrel b 5; the planetary screws 7 are uniformly distributed between the main screw 3 and the barrel b 5; the planetary screw 7 is simultaneously meshed with the barrel b5 and the main screw 3; barrel b5 is fixed on base 1 by support bracket 8; both barrel a4 and barrel b5 were fitted with electrical heating means on the outside wall.

The lower end of the threaded rotating rod 14 is in a pointed shape.

The limiting frame comprises a limiting ring 15 fixedly connected with an electric telescopic rod 13 and a lantern ring 17 which is matched with the limiting ring 15 and is fixedly connected with a hopper 10 through a connecting shaft 16.

The inner wall of the cylinder b5 is provided with a spiral groove.

The thread section of the rear half section of the main screw rod 3 is in an involute tooth form, and the spiral is a multi-start thread.

The section of the thread of the planetary screw 7 is in an involute tooth form, and the spiral is a multi-thread.

The lower end of the base 1 is provided with a rubber cushion 18.

The principle of the utility model is as follows: firstly, starting the electric heating devices on the outer walls of the machine barrel a4 and the machine barrel b5, when the temperature reaches a set value, pouring raw materials into a hopper 10, starting a motor 2, rotating a main screw 3, simultaneously driving a plurality of planetary screws 7 to rotate, finally discharging a high-quality product from the head of a die head 6, plasticizing PVC more uniformly by mixing and rolling the planetary screws 7 and the main screw 3, and ensuring short melt retention time, so that the problem of coke caused by melt retention of a single-screw extruder is solved, when the raw materials are poured, starting a second motor 9, driving a bevel gear 11 to rotate, meshing a second bevel gear 12 with the bevel gear 11, driving the electric telescopic rod 13 to rotate, driving a threaded rotating rod 14 to rotate, at the moment, extending and contracting the electric telescopic rod 13, driving the threaded rotating rod 14 to ascend and descend, at the moment, rotating the threaded rotating rod 14 to rotate and move up and down, dredging the hopper 10, the blockage in the hopper 10 is avoided, the materials in the hopper 10 are even, and the electric telescopic rod 13 is prevented from moving up and down by the limiting frame, so that the bevel gear 11 is separated from the second bevel gear 12.

Although the present invention has been described with respect to the preferred embodiments, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the utility model, and it is intended that the scope of the utility model be defined by the appended claims.

Claims

1. The utility model provides a novel take planet screw extruder of stirring feed which characterized in that: comprises a base (1), a motor (2), a feeding component, a main screw (3), a machine barrel a (4), a machine barrel b (5), a die head (6) and a planetary screw (7); the feeding assembly comprises a second motor (9) arranged on the base (1) and a hopper (10); the output end of the second motor (9) penetrates through the hopper (10) and is connected with a bevel gear (11); a second bevel gear (12) is meshed on the bevel gear (11); the lower end of the second bevel gear (12) is connected with an electric telescopic rod (13); the electric telescopic rod (13) is rotatably connected with the hopper (10) through a limiting frame; the lower end of the electric telescopic rod (13) is fixedly connected with a threaded rotating rod (14); the motor (2) is fixedly connected to the upper end of the base (1); the machine barrel a (4) is connected with the motor (2) through flange mounting; the hopper (10) is communicated with the machine barrel a (4); the barrel b (5) and the barrel a (4) are installed together through threaded connection; the die head (6) is arranged at the tail part of the machine barrel b (5); the main screw (3) is arranged in a machine barrel a (4) and a machine barrel b (5); the planetary screws (7) are uniformly distributed between the main screw (3) and the machine barrel b (5); the planetary screw (7) is meshed with the machine barrel b (5) and the main screw (3) simultaneously; the machine barrel b (5) is fixed on the base (1) through a support frame (8); the outer walls of barrel a (4) and barrel b (5) are both provided with electric heating devices.

2. A novel planetary screw extruder with stirring feed according to claim 1, characterized in that: the lower end of the threaded rotating rod (14) is in a pointed shape.

3. A novel planetary screw extruder with stirring feed according to claim 1, characterized in that: the limiting frame comprises a limiting ring (15) fixedly connected with the electric telescopic rod (13) and a sleeve ring (17) which is matched with the limiting ring (15) and is fixedly connected with the hopper (10) through a connecting shaft (16).

4. A novel planetary screw extruder with stirring feed according to claim 1, characterized in that: the inner wall of the machine barrel b (5) is provided with a spiral groove.

5. A novel planetary screw extruder with stirring feed according to claim 1, characterized in that: the thread section of the rear half section of the main screw rod (3) is in an involute tooth form, and the spiral is a multi-start thread.

6. A novel planetary screw extruder with stirring feed according to claim 1, characterized in that: the thread section of the planetary screw (7) is in an involute tooth form, and the spiral is a multi-thread.

7. A novel planetary screw extruder with stirring feed according to claim 1, characterized in that: the lower end of the base (1) is provided with a rubber cushion (18).