CN219505386U

CN219505386U - Feeding device of double-screw extruder

Info

Publication number: CN219505386U
Application number: CN202320036682.6U
Authority: CN
Inventors: 丁飞月; 李春英; 吕健; 苗少壮
Original assignee: Qingdao Zhongxinyuan Plastic Products Co ltd
Current assignee: Qingdao Zhongxinyuan Plastic Products Co ltd
Priority date: 2023-01-07
Filing date: 2023-01-07
Publication date: 2023-08-11
Anticipated expiration: 2033-01-07

Abstract

The utility model provides a feeding device of a double-screw extruder, which comprises a base, wherein a positioning seat is erected on the upper surface of the base, a feeding tank is fixed in the positioning seat, a cover plate is fixed on the upper surface of the feeding tank, a motor is fixed on the upper surface of the cover plate, a second gear is fixed on the outer part of an output shaft at the front end of the motor, a rotating rod is rotatably connected to the inner part of the feeding tank through a bearing, and a stirring impeller is fixed on the outer part of the rotating rod and positioned in the feeding tank. According to the feeding device of the double-screw extruder, air is fed into the feeding tank through the external air pipe, the motor is started in the feeding process of the feeding tank through the air pressure in the feeding tank, the output end of the motor drives the rotating rod to rotate through the meshed connection between the first gear and the second gear, the rotating rod can drive the stirring impeller to rotate after rotating, and the materials in the feeding tank can be prevented from being coagulated through the rotation of the stirring impeller.

Description

Feeding device of double-screw extruder

Technical Field

The utility model relates to the field of double-screw extruders, in particular to a feeding device of a double-screw extruder.

Background

The double-screw extruder is developed on the basis of a single-screw extruder, has been widely applied to the molding processing of extruded products due to the characteristics of good feeding performance, mixing plasticizing performance, exhaust performance, extrusion stability and the like, and consists of a transmission device, a feeding device, a charging barrel, a screw and the like, and the functions of all the components are similar to those of the single-screw extruder, and a feeding device is needed to be used for discharging the inside of the double-screw extruder in the use process of the double-screw extruder.

However, most of the existing feeding devices of the double-screw extruder are connected with the feeding port of the double-screw extruder through connecting pipes, and the feeding devices directly feed and convey materials to the inside of the double-screw extruder through the connecting pipes, but the materials in the connecting pipes are easy to coagulate under the condition of long-time non-working.

Therefore, it is necessary to provide a feeding device for a twin-screw extruder to solve the above-mentioned problems.

Disclosure of Invention

The utility model provides a feeding device of a double-screw extruder, which solves the problems that most of the existing feeding devices of the double-screw extruder are connected with a feed inlet of the double-screw extruder by a connecting pipe, and the feeding device directly feeds materials into the double-screw extruder by the connecting pipe, but the materials in the connecting pipe are easy to coagulate under the condition of long-time non-working.

In order to solve the technical problems, the utility model provides: the utility model provides a double screw extruder feeding device, includes the base, the upper surface of base is erect the positioning seat, the inside of positioning seat is fixed with the supply tank, the upper surface of supply tank is fixed with the apron, the upper surface of apron is fixed with the motor, the outside of the front end output shaft of motor is fixed with the second gear, the inside of supply tank is connected with the bull stick through the bearing rotation, the outside of bull stick just is located the inside of supply tank and is fixed with stirring impeller.

Preferably, a first gear is fixed on the outside of the rotating rod and above the replenishing tank, and the first gear is in meshed connection with the second gear.

Preferably, a feeding pipe is fixed on one side of the feeding tank, and a first valve is rotatably connected to the upper surface of the feeding pipe.

Preferably, an air inlet pipe is fixed at the side of the feeding pipe, and a discharging pipe is fixed below the outer wall of the replenishing tank.

Preferably, the upper surface of the blanking pipe is rotatably provided with a second valve.

Compared with the related art, the feeding device of the double-screw extruder provided by the utility model has the following beneficial effects:

the beneficial effects of the utility model are as follows: when the double-screw extruder is used for feeding, the first valve is closed, the second valve is opened, air is introduced into the feeding tank through the external air pipe, and the air pressure in the feeding tank is increased to achieve the effect of quick discharging.

Drawings

FIG. 1 is a schematic diagram of a feeding apparatus of a twin screw extruder according to a preferred embodiment of the present utility model;

FIG. 2 is a schematic view of a connection structure between the positioning seat and the supply pipe shown in FIG. 1;

FIG. 3 is a schematic view of the internal structure of the supply pipe shown in FIG. 1.

In the figure: 1. a base; 2. a positioning seat; 3. a replenishing tank; 4. a cover plate; 5. a motor; 6. a first gear; 7. a second gear; 8. a rotating rod; 9. a stirring impeller; 10. a feed pipe; 11. a first valve; 12. an air inlet pipe; 13. discharging pipes; 14. and a second valve.

Detailed Description

The utility model will be further described with reference to the drawings and embodiments.

Referring to fig. 1, fig. 2 and fig. 3 in combination, fig. 1 is a schematic structural diagram of a feeding device of a twin-screw extruder according to a preferred embodiment of the present utility model; FIG. 2 is a schematic view of a connection structure between the positioning seat and the supply pipe shown in FIG. 1; FIG. 3 is a schematic view of the internal structure of the supply pipe shown in FIG. 1. The utility model provides a double screw extruder feeding device, includes base 1, and the upper surface of base 1 is erect positioning seat 2, and the inside of positioning seat 2 is fixed with the feeding jar 3, and the upper surface of feeding jar 3 is fixed with apron 4, and the upper surface of apron 4 is fixed with motor 5, and the outside of the front end output shaft of motor 5 is fixed with second gear 7, and the inside of feeding jar 3 is connected with bull stick 8 through the bearing rotation, and the outside of bull stick 8 just is located the inside of feeding jar 3 and is fixed with impeller 9.

The outside of bull stick 8 just is located the top of makeup tank 3 and is fixed with first gear 6, is connected for the meshing between first gear 6 and the second gear 7, and the upper surface mounting of apron 4 has relief valve and manometer, and the motor 5 output drives bull stick 8 through the meshing between first gear 6 and the second gear 7 and rotates, and bull stick 8 just can drive impeller 9 and rotate after rotating, can prevent through impeller 9 rotation that the inside material of makeup tank 3 from condensing.

A feed pipe 10 is fixed on one side of the replenishing tank 3, and a first valve 11 is rotatably connected to the upper surface of the feed pipe 10.

An air inlet pipe 12 is fixed at the side of the feed pipe 10, and a discharging pipe 13 is fixed below the outer wall of the replenishing tank 3.

The upper surface of the blanking pipe 13 is rotatably provided with a second valve 14, the first valve 11 is closed when the double-screw extruder is fed, the second valve 14 is opened, air is taken into the interior of the feeding tank 3 through an external air pipe, and the air pressure in the feeding tank 3 is increased to achieve the effect of quick blanking.

The working principle of the feeding device of the double-screw extruder provided by the utility model is as follows;

the first step: the positioning seat 2 is erected right above the double-screw extruder, the blanking pipe 13 can be inserted into a feed inlet of the double-screw extruder, then the blanking pipe is connected with the feed pipe 10 through an externally connected feed pipe, the externally connected air pipe is connected with the air inlet pipe 12, the feeding is started to the inside of the replenishing tank 3 through the feed pipe 10, the motor 5 is started in the feeding process inside the replenishing tank 3, the output end of the motor 5 drives the rotating rod 8 to rotate through the meshing connection between the first gear 6 and the second gear 7, the rotating rod 8 can drive the stirring impeller 9 to rotate after rotating, and the material inside the replenishing tank 3 can be prevented from being coagulated through the rotation of the stirring impeller 9.

A second step; when the double-screw extruder is used for feeding, the first valve 11 is closed, the second valve 14 is opened, air is introduced into the feeding tank 3 through the external air pipe, and the air pressure in the feeding tank 3 is increased to achieve the effect of rapid discharging.

the in-process starter motor 5 of the inside feeding of make-up jar 3, motor 5 output drives bull stick 8 through the meshing connection between first gear 6 and the second gear 7 and rotates, and bull stick 8 just can drive impeller 9 and rotate after rotating, can prevent through impeller 9 rotation that the inside material of make-up jar 3 from condensing, use when supplying twin-screw extruder to close first valve 11, open second valve 14, intake the inside of make-up jar 3 through external trachea, reach the effect of quick unloading through the inside atmospheric pressure of increase make-up jar 3.

The foregoing description is only illustrative of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structures or equivalent processes or direct or indirect application in other related technical fields are included in the scope of the present utility model.

Claims

1. The utility model provides a double screw extruder feeding device, includes base (1), its characterized in that, the upper surface of base (1) is erect positioning seat (2), the inside of positioning seat (2) is fixed with supply tank (3), the upper surface of supply tank (3) is fixed with apron (4), the upper surface of apron (4) is fixed with motor (5), the outside of the front end output shaft of motor (5) is fixed with second gear (7), the inside of supply tank (3) is connected with bull stick (8) through the bearing rotation, the outside of bull stick (8) and the inside that is located supply tank (3) are fixed with impeller (9).

2. The feeding device of the twin-screw extruder according to claim 1, wherein a first gear (6) is fixed on the outside of the rotating rod (8) and above the feeding tank (3), and the first gear (6) is in meshed connection with a second gear (7).

3. A twin screw extruder feeding device according to claim 2, wherein a feed pipe (10) is fixed to one side of the feeding tank (3), and a first valve (11) is rotatably connected to the upper surface of the feed pipe (10).

4. A twin-screw extruder feeding device according to claim 3, characterized in that the side of the feed pipe (10) is fixed with an air inlet pipe (12), and a blanking pipe (13) is fixed below the outer wall of the feeding tank (3).

5. A twin screw extruder feeding apparatus according to claim 4, wherein the upper surface of the blanking tube (13) is rotatably provided with a second valve (14).