CN214419524U

CN214419524U - Single screw extruder is used in plastics tubular product production

Info

Publication number: CN214419524U
Application number: CN202120244313.7U
Authority: CN
Inventors: 朱洪超
Original assignee: Zhangjiagang Gangsu Machinery Co ltd
Current assignee: Zhangjiagang Gangsu Machinery Co ltd
Priority date: 2021-01-28
Filing date: 2021-01-28
Publication date: 2021-10-19
Anticipated expiration: 2031-01-28

Abstract

The utility model discloses a plastics tubular product production is with single screw extruder belongs to the relevant field of tubular product production, including the motor and install the stirring feed cylinder on the motor, be provided with the (mixing) shaft with motor output shaft fixed connection in the stirring feed cylinder, fixed mounting has the stirring rake on the periphery of (mixing) shaft, fixed mounting has the hopper rather than inside intercommunication on the up end of stirring feed cylinder, the right side fixedly connected with extrusion machanism of stirring feed cylinder, cooling body is installed to extrusion machanism's end. A pipe is formed at the tail end of the extrusion mechanism, cooling water is continuously and circularly introduced into a water channel in the cooling mechanism to cool and shape the pipe in the extrusion area, and the shaped plastic pipe is stable in structure and not easy to deform after being output from the cooling cylinder, so that the quality of the pipe is ensured; through the compression of the first extrusion unit and the second extrusion unit, the pores in the plastic raw materials for forming the pipe are eliminated in the extrusion mechanism, so that the quality of the pipe is further improved.

Description

Single screw extruder is used in plastics tubular product production

Technical Field

The utility model relates to a tubular product production facility specifically is a plastics tubular product production is with single screw extruder.

Background

The single screw extruder is mainly used for extruding soft and hard polyvinyl chloride, polyethylene and other thermoplastic plastics, can be used for processing various plastic products, such as blown film, extruded tube, press plate, wire drawing belt and the like, and can also be used for melt granulation. The plastic extruder has advanced design, high quality, good plasticization, low energy consumption, and low noise, stable operation, large bearing capacity, long service life and other features.

The existing single-screw extruder is unstable in shaping plastic pipes, and the extruded plastic pipes are often deformed due to pipe collapse when not cooled in time, so that the shapes of the extruded plastic pipes are deformed and cannot be round.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a plastics tubular product production is with single screw extruder to solve the problem that proposes in the above-mentioned background art.

For solving the deficiencies of the prior art, the utility model provides a following technical scheme:

the utility model provides a single screw extruder is used in plastics tubular product production, includes the motor and installs the stirring feed cylinder on the motor, be provided with the (mixing) shaft with motor output shaft fixed connection in the stirring feed cylinder, fixed mounting has the stirring rake on the periphery of (mixing) shaft, fixed mounting has the hopper rather than inside intercommunication on the up end of stirring feed cylinder, the right side fixedly connected with extrusion mechanism of stirring feed cylinder, cooling body is installed to the end of extrusion mechanism, cooling body includes the extrusion axle and the cooling cylinder of being connected with extrusion mechanism, the extrusion axle sets up in the cooling cylinder, constitute between extrusion axle and the cooling cylinder and extrude the district, the inside of cooling cylinder is provided with the water course.

As an improved scheme of the utility model: extrusion mechanism includes that the unit is extruded to the one-level and the unit is extruded to the second grade, one-level basic unit includes the one-level feed cylinder of being connected with the stirring cylinder and the one-level pivot of being connected with the stirring shaft, still including installing the one-level conveying oar on the one-level pivot periphery, the unit is extruded to the second grade includes the second grade feed cylinder of being connected with the one-level feed cylinder and the second grade pivot of being connected with the one-level pivot, still including installing the second grade conveying oar on the second grade pivot periphery, the end and the extrusion shaft of second grade pivot are connected.

As another improvement of the present invention: the second-stage material barrel is flush with the inner wall of the cooling barrel, and the starting end of the extrusion shaft is positioned in the second-stage material barrel.

As another improvement of the present invention: the terminal processing mechanism that is provided with of cooling body, processing mechanism is including handling a section of thick bamboo, it has the chamber of polishing to handle in the section of thick bamboo, be provided with the layer of polishing with the tubular product laminating on the inner wall in chamber of polishing.

As a further aspect of the present invention: the outer surface of the treatment barrel is provided with an outer gear, two driving gears meshed with the outer gear are symmetrically arranged on two sides of the outer gear, and one driving gear is connected with a driving unit.

Compared with the prior art, the beneficial effects of the utility model are that:

a pipe is formed at the tail end of the extrusion mechanism, cooling water is continuously and circularly introduced into a water channel in the cooling mechanism to cool and shape the pipe in the extrusion area, and the shaped plastic pipe is stable in structure and not easy to deform after being output from the cooling cylinder, so that the quality of the pipe is ensured; the pores and bubbles in the plastic raw material forming the pipe are almost eliminated in the extrusion mechanism through the compression of the first extrusion unit and the second extrusion unit, so that the quality of the pipe is further improved.

Drawings

FIG. 1 is a main view of a single screw extruder for plastic pipe production;

FIG. 2 is a partially enlarged view of a single screw extruder for plastic pipe production;

FIG. 3 is a three-dimensional view of a cooling water pipe of a single screw extruder for plastic pipe production;

in the figure: 1-motor, 2-hopper, 3-stirring cylinder, 4-stirring shaft, 5-stirring paddle, 6-first-stage rotating shaft, 7-first-stage conveying paddle, 8-first-stage cylinder, 9-second-stage cylinder, 10-second-stage rotating shaft, 11-second-stage conveying paddle, 12-extruding shaft, 13-cooling cylinder, 14-processing cylinder, 15-grinding cavity, 16-water channel, 17-extruding area, 18-grinding layer, 19-driving gear and 20-water inlet and outlet.

Detailed Description

The present invention will be described in detail with reference to the following embodiments, wherein like or similar elements are designated by like reference numerals throughout the drawings or description, and wherein the shape, thickness or height of the various elements may be expanded or reduced in practical applications. The embodiments of the present invention are provided only for illustration, and not for limiting the scope of the present invention. Any obvious and obvious modifications or alterations to the present invention can be made without departing from the spirit and scope of the present invention.

The technical solution of the present patent will be described in further detail with reference to the following embodiments.

Referring to fig. 1-3, the present embodiment provides a single screw extruder for plastic pipe production, comprising a motor 1 and a stirring barrel 3 mounted on the motor 1, a stirring shaft 4 fixedly connected with an output shaft of the motor 1 is arranged in the stirring cylinder 3, a stirring paddle 5 is fixedly arranged on the circumferential surface of the stirring shaft 4, the upper end surface of the stirring cylinder 3 is fixedly provided with a hopper 2 communicated with the interior of the stirring cylinder, the right side of the stirring cylinder 3 is fixedly connected with an extrusion mechanism, the tail end of the extrusion mechanism is provided with a cooling mechanism which comprises an extrusion shaft 12 and a cooling cylinder 13 which are connected with the extrusion mechanism, the extrusion shaft 12 is arranged in the cooling cylinder 13, an extrusion area 17 is formed between the extrusion shaft 12 and the cooling cylinder 13, a water channel 16 is arranged in the cooling cylinder 13, and a water inlet and outlet 20 of the water channel 16 is communicated with the cooling circulation unit. During the use, place plastics raw materials and go on in hopper 2, because gravity falls to in stirring feed cylinder 3, motor 1 drive (mixing) shaft 4 rotates, stirring rake 5 conveys plastics raw materials to the right side while stirring, after fully mixing in stirring feed cylinder 3, convey to extrusion mechanism, end at extrusion mechanism forms tubular product, tubular product constantly moves in the cooling body in the continuous output of extrusion mechanism in the right side in succession, the continuous circulation lets in cooling water in the water course 16 in the cooling body, cool off the sizing to the tubular product in extrusion zone 17, the plastics tubular product after the sizing is after exporting from cooling cylinder 13, stable in structure, non-deformable, the tubular product quality is guaranteed.

Please refer to fig. 1 and fig. 2, which are an optimized embodiment of the present invention: extrusion mechanism includes that the unit is extruded to the one-level and the unit is extruded to the second grade, one-level basic unit includes the one-level feed cylinder 8 of being connected with stirring cylinder 3 and the one-level pivot 6 of being connected with (mixing) shaft 4, still includes one-level conveying oar 7, the unit is extruded to the second grade includes the second grade feed cylinder 9 of being connected with one-level feed cylinder 8 and the second grade pivot 10 of being connected with one-level pivot 6, still includes second grade conveying oar 11, the end of second grade pivot 10 with extrude the axle 12 and be connected. The secondary material barrel 9 is flush with the inner wall of the cooling barrel 13, and the starting end of the extrusion shaft 12 is positioned in the secondary material barrel 9. When the stirring device is used, the stirring cylinder 3 gradually transits to the first-level cylinder 8, the plastic raw materials are extruded into the first-level cylinder 8 under the pushing of the stirring paddle 5, the raw materials are more compact, the right movement is continued under the transmission of the first-level transmission paddle 7, the distance between the first-level rotating shaft 6 and the first-level cylinder 8 is reduced compared with the distance between the stirring cylinder 3 and the stirring shaft 4, and the gas in the plastic raw materials is continuously extruded in the rotation process; and continuing to enter the second extrusion unit, repeating the process, when the plastic raw material reaches the tail end of the secondary rotating shaft 10, extruding the plastic material between the extrusion shaft 12 and the secondary material barrel 9 to form a pipe with the same size, when the pipe enters the cooling mechanism, keeping the distance between the extrusion shaft 12 and the secondary material barrel 9 equal to the distance between the extrusion shaft 12 and the cooling barrel 13, namely, keeping the inner surfaces of the secondary material barrel 9 and the cooling barrel 13 flush, ensuring the diameter and the shape of the pipe to be stable, and almost eliminating pores and bubbles in the plastic raw material forming the pipe in the extrusion mechanism through the compression of the first extrusion unit and the second extrusion unit so as to further improve the quality of the pipe.

Please refer to fig. 1 and fig. 2, which are another preferred embodiment of the present invention: the terminal of cooling body is provided with processing mechanism, processing mechanism is including handling a section of thick bamboo 14, it has the chamber of polishing 15 to handle in the section of thick bamboo 14, be provided with the layer 18 of polishing with the tubular product laminating on the inner wall in chamber 15 of polishing. The outer surface of the treatment canister 14 is provided with an external gear, two driving gears 19 engaged with the external gear are symmetrically arranged on two sides of the external gear, and one driving gear 19 is connected with a driving unit. When the pipe material is output from the cooling cylinder 13 and enters the grinding cavity 15, the driving gear 19 drives the processing cylinder 14 to rotate under the driving of the driving unit, the rotating processing cylinder 14 drives the grinding layer 18 to grind the surface of the pipe material, the pipe material continuously moves to the right under the extrusion of the extruding mechanism, so that the processing mechanism can continuously process the outer surface of the pipe material, the tiny flaws on the surface of the pipe material are reduced, and the appearance of the pipe material is ensured to be neat.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. A single screw extruder for producing plastic pipes comprises a motor (1) and a stirring material barrel (3) arranged on the motor (1), a stirring shaft (4) fixedly connected with an output shaft of the motor (1) is arranged in the stirring material cylinder (3), it is characterized in that a stirring paddle (5) is fixedly arranged on the circumferential surface of the stirring shaft (4), a hopper (2) communicated with the inside of the stirring cylinder (3) is fixedly arranged on the upper end surface of the stirring cylinder, the right side of the stirring material barrel (3) is fixedly connected with an extrusion mechanism, the tail end of the extrusion mechanism is provided with a cooling mechanism, the cooling mechanism comprises an extrusion shaft (12) and a cooling cylinder (13) which are connected with the extrusion mechanism, the extrusion shaft (12) is arranged in the cooling cylinder (13), an extrusion area (17) is formed between the extrusion shaft (12) and the cooling cylinder (13), and a water channel (16) is arranged in the cooling cylinder (13).

2. The single screw extruder is used in production of plastics tubular product of claim 1, characterized in that, extrusion mechanism includes the first order and extrudes the unit and the second grade is extruded the unit, the first order is extruded the unit and is included the first order feed cylinder (8) of being connected with stirring cylinder (3) and the first order pivot (6) of being connected with (mixing) shaft (4), still includes the first order transmission oar (7) of installing on the periphery of first order pivot (6), the unit is extruded to the second grade includes the second grade feed cylinder (9) of being connected with first order feed cylinder (8) and the second grade pivot (10) of being connected with first order pivot (6), still includes the second grade transmission oar (11) of installing on the periphery of second grade pivot (10), the end and the extrusion shaft (12) of second grade pivot (10) are connected.

3. The single screw extruder for plastic pipe production according to claim 2, wherein the secondary barrel (9) is flush with the inner wall of the cooling barrel (13), and the start end of the extrusion shaft (12) is located in the secondary barrel (9).

4. The single-screw extruder for producing the plastic pipes is characterized in that a processing mechanism is arranged at the tail end of the cooling mechanism, the processing mechanism comprises a processing barrel (14), a grinding cavity (15) is arranged in the processing barrel (14), and a grinding layer (18) attached to the pipes is arranged on the inner wall of the grinding cavity (15).

5. The single screw extruder for plastic pipe production according to claim 4, wherein the outer surface of the processing barrel (14) is provided with an external gear, two driving gears (19) meshed with the external gear are symmetrically arranged on two sides of the external gear, and one driving gear (19) is connected with a driving unit.