CN211843129U

CN211843129U - Double-screw extruder

Info

Publication number: CN211843129U
Application number: CN202020211641.2U
Authority: CN
Inventors: 邹旭东; 祁凯
Original assignee: Changzhou Weimao New Material Technology Co ltd
Current assignee: Changzhou Weimao New Material Technology Co ltd; Changzhou Weicai New Material Science and Technology Co Ltd
Priority date: 2020-02-25
Filing date: 2020-02-25
Publication date: 2020-11-03
Anticipated expiration: 2030-02-25

Abstract

The utility model relates to a technical field of plastics extrusion processing especially relates to a double screw extruder. Comprises a motor, a charging bucket, a feeding port, a screw rod group and an extrusion pipe; the output end of the motor is connected with the spiral rod group and provides power for the spiral rod group to rotate; the charging bucket is of a funnel structure; the top of the feeding opening is communicated with the charging bucket; the screw rod group is used for stirring and extruding the work material; the extrusion pipe is connected with the end part of the feeding port; the screw rod group comprises a left screw rod and a right screw rod which are arranged correspondingly, and the left screw rod and the right screw rod are both arranged in a cavity of the extrusion tube and are used for being matched with each other to extrude a work material; the surface of the left screw rod and the surface of the right screw rod are both provided with threads for extruding work materials. The utility model aims at providing a double screw extruder to the defect that exists among the prior art, adopt the double screw structure for extrude more fully, concrete extremely strong usability.

Description

Double-screw extruder

Technical Field

The utility model relates to a technical field of plastics extrusion processing especially relates to a double screw extruder.

Background

Plastics are high molecular compounds, commonly called plastics or resins, which are made from monomers by polyaddition or polycondensation, can freely change the components and shape and form, and are composed of synthetic resins and additives such as fillers, plasticizers, stabilizers, lubricants, pigments, etc. With the development of society, plastics have evolved into an indispensable material for use in life.

In the prior art, plastic processing mainly adopts an extrusion mode, most common extruders adopt single-screw extrusion, the problems of insufficient extrusion of work materials and the like often occur, and the quality of finished products is poor.

In view of the above problems, the designer actively makes research and innovation based on the practical experience and professional knowledge that the engineering application of the products is rich for many years and by matching with the application of the theory, so as to design the double-screw extruder, and the double-screw structure is adopted, so that the extrusion is more sufficient, the yield is improved, and the specific strong usability is realized.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a double screw extruder to the defect that exists among the prior art, adopt the double screw structure for extrude more fully, the yield improves, concrete extremely strong usability.

In order to achieve the above purpose, the utility model adopts the technical scheme that:

comprises a motor, a charging bucket, a feeding port, a screw rod group and an extrusion pipe; the output end of the motor is connected with the spiral rod group and provides power for the spiral rod group to rotate; the charging bucket is of a funnel structure, and the top opening of the charging bucket is used for receiving poured work materials; the top of the feeding port is communicated with the charging bucket and is used for transferring work materials; the screw rod group is used for stirring and extruding the work material; the extrusion pipe is connected with the end part of the feeding port, is of a cavity structure and is used for providing a field for extrusion movement of the work material; the screw rod group comprises a left screw rod and a right screw rod which are arranged correspondingly, and the left screw rod and the right screw rod are both arranged in a cavity of the extrusion tube and are used for being matched with each other to extrude a work material; the surface of the left screw rod and the surface of the right screw rod are both provided with threads for fully extruding work materials.

Further, the cavity structure of the extrusion pipe is specifically a stirring cavity; the stirring cavity is used for containing a work material and is matched with the screw rod group to extrude the work material.

Furthermore, the device also comprises a flange plate; the flange plates are arranged among the plurality of extrusion pipes and are used for being fixedly connected.

Further, the device also comprises a heat transfer pipe and a heater; one end of the heat transfer pipe is connected with the heater, and the other end of the heat transfer pipe is connected with the extrusion pipe and used for transferring heat; the heater is used for heating the extrusion pipe to promote the deformation of the work material.

Further, the device also comprises a shaping port; the shaping opening is connected with the tail part of the extrusion pipe and used for shaping and discharging the work material.

Furthermore, a shaping hole is formed in the shaping opening; the shape of the shaping hole is set according to the processing requirement, and the shaping hole is used for extruding and shaping the workpiece and outputting a finished product.

Through the technical scheme of the utility model, can realize following technological effect:

the screw rod group with abundant threads is distributed on the surface, is arranged in a bilateral symmetry mode and is matched with a workpiece, so that the workpiece is fully rubbed, the extrusion is more sufficient, the yield is improved, and the screw rod group is particularly high in usability.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic structural view of a twin-screw extruder according to an embodiment of the present invention;

FIG. 2 is a schematic view of the internal structure of an extrusion tube of a twin-screw extruder according to an embodiment of the present invention;

FIG. 3 is a schematic structural view of a shaping opening of a twin-screw extruder in an embodiment of the present invention;

reference numerals: the device comprises a motor 1, a charging bucket 2, a feeding port 3, a screw rod group 4, an extrusion pipe 5, a flange plate 6, a heat transfer pipe 7, a heater 8, a shaping port 9, a stirring cavity 51 and a shaping hole 91.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

In the description of the present invention, it should be noted that the orientations and positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like are based on the orientations and positional relationships shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it should be noted that unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may include, for example, a fixed connection, a detachable connection, or an integral connection; can be mechanically or electrically connected; either directly or indirectly through intervening media, or may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

A double-screw extruder is shown in figures 1 and 2 and comprises a motor 1, a charging barrel 2, a feeding port 3, a screw rod group 4 and an extrusion pipe 5; the output end of the motor 1 is connected with the spiral rod group 4 and provides power for the rotation of the spiral rod group 4; the charging basket 2 is of a funnel structure, and the top opening of the charging basket is used for receiving poured work materials; the top of the feeding port 3 is communicated with the charging basket 2 and is used for transferring work materials; the screw rod group 4 is used for stirring and extruding a work material; the extrusion pipe 5 is connected with the end part of the feeding port 3, is of a cavity structure and is used for providing a field for extrusion movement of work materials; the screw rod group 4 comprises a left screw rod and a right screw rod which are arranged correspondingly, and the left screw rod and the right screw rod are both arranged in a cavity of the extrusion tube 5 and are used for extruding a work material in a matching manner; the surface of the left screw rod and the surface of the right screw rod are both provided with threads for fully extruding work materials.

In the actual operation process of producing the plastic strips, the prepared work materials are required to be poured into a material barrel 2 with a funnel structure and enter an extrusion pipe 5 through a feeding port 3 for extrusion. The specific extrusion process is that the starter motor 1 supplies energy to the screw rod group 4, so that the screw rod group 4 continuously stirs the work material in the extrusion pipe 5. The work material is continuously extruded due to the stirring power and the friction force, and finally, a finished product is output. Wherein, the screw rod group 4 is the twin-screw structure specifically, also can set into the multiscrew according to actual demand for the friction with the work material is more abundant.

As a preference of the above embodiment, as shown in fig. 1 and 2, the cavity structure of the extrusion pipe 5 is specifically a stirring cavity 51; the stirring cavity 51 is used for accommodating a work material and is matched with the screw rod group 4 to extrude the work material.

Specifically, the cavity structure of the extrusion tube 5 may be a stirring cavity 51, and when the material is accommodated, the cavity structure cooperates with the screw rod set 4 to extrude the material.

As a preference of the above embodiment, as shown in fig. 1, the flange plate 6; the flange plates 6 are arranged among the plurality of extrusion pipes 5 and are used for being fixedly connected.

Specifically, because of the time processing line is longer, and for processing convenience, design into the suitable 5 concatenations of extruded pipe of a plurality of sizes with extruded pipe 5 and form, can carry out fixed connection, convenient to detach clearance with flange 6 between a plurality of extruded pipes 5.

As a preference of the above embodiment, as shown in fig. 1, it further includes a heat transfer pipe 7 and a heater 8; one end of the heat transfer pipe 7 is connected with the heater 8, and the other end of the heat transfer pipe is connected with the extrusion pipe 5 and used for transferring heat; the heater 8 is used for heating the extrusion pipe 5 to promote deformation of the work material.

Specifically, during the extrusion of the work material, the extrusion process may be accelerated by heating the extruded tube 5. The heater 8 is started to generate heat, the heater 8 is communicated with the extrusion pipe 5 through the heat transfer pipe 7 to transfer the heat, the extrusion environment is optimized, and the production efficiency is improved.

As a preference of the above embodiment, as shown in fig. 1 and 3, a sizing port 9 is further included; the shaping opening 9 is connected with the tail part of the extrusion pipe 5 and used for shaping and discharging the work material.

As a preference of the above embodiment, as shown in fig. 3, the shaping opening 9 is provided with a shaping hole 91; the shape of the shaping hole 91 is set according to the processing requirement, and the shaping hole is used for extruding and shaping the workpiece and outputting a finished product.

Specifically, the shaping holes 91 with different properties can be formed according to the product requirements.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A double-screw extruder is characterized by comprising a motor (1), a charging barrel (2), a feeding port (3), a screw rod group (4) and an extrusion pipe (5); the output end of the motor (1) is connected with the spiral rod group (4) and provides power for the rotation of the spiral rod group (4); the charging basket (2) is of a funnel structure, and the top opening of the charging basket is used for receiving poured work materials; the top of the feeding port (3) is communicated with the charging basket (2) and is used for transferring work materials; the screw rod group (4) is used for stirring and extruding a work material; the extrusion pipe (5) is connected with the end part of the feeding port (3), is of a cavity structure and is used for providing a field for extrusion movement of work materials; the screw rod group (4) comprises a left screw rod and a right screw rod which are arranged correspondingly, and the left screw rod and the right screw rod are both arranged in a cavity of the extrusion tube (5) and are used for extruding a work material in a matching manner; the surface of the left screw rod and the surface of the right screw rod are both provided with threads for fully extruding work materials.

2. The twin-screw extruder according to claim 1, characterized in that the cavity structure of the extrusion tube (5) is embodied as a stirring cavity (51); the stirring cavity (51) is used for containing a work material and is matched with the screw rod group (4) to extrude the work material.

3. The twin-screw extruder according to claim 1, further comprising a flange (6); the flange plates (6) are arranged among the plurality of extrusion pipes (5) and are used for being fixedly connected.

4. The twin-screw extruder according to claim 1, characterized by further comprising a heat transfer tube (7) and a heater (8); one end of the heat transfer pipe (7) is connected with the heater (8), and the other end of the heat transfer pipe is connected with the extrusion pipe (5) and used for transferring heat; the heater (8) is used for heating the extrusion pipe (5) and promoting deformation of the work material.

5. The twin-screw extruder according to claim 1, characterized in that it further comprises a shaping mouth (9); the shaping opening (9) is connected with the tail part of the extrusion pipe (5) and is used for shaping and discharging the work material.

6. The twin-screw extruder according to claim 5, characterised in that the shaping mouth (9) is provided with a shaping orifice (91); the shape of the shaping hole (91) is set according to the processing requirement, and the shaping hole is used for extruding and shaping the workpiece and outputting a finished product.