CN212472317U

CN212472317U - Energy-saving hot air type plastic extruder

Info

Publication number: CN212472317U
Application number: CN202020244076.XU
Authority: CN
Inventors: 刘忠杰; 战明强; 刘晓平; 郑玉玲; 李静; 于波; 左学武
Original assignee: Qingdao Haihuida Rubber & Plastic Material Co ltd
Current assignee: Qingdao Haihuida Rubber & Plastic Material Co ltd
Priority date: 2020-03-03
Filing date: 2020-03-03
Publication date: 2021-02-05
Anticipated expiration: 2030-03-03

Abstract

The utility model relates to a plastics extruder technical field especially relates to an energy-conserving hot-blast formula plastics extruder, solve the flue gas that exists among the prior art and easily influence the shortcoming of plastics quality, including rack and outer barrel, install driving motor on the rack, outer barrel is fixed on the rack, communicating pipe is coaxial and be linked together with outer barrel, and the end of outer barrel installs extrusion tooling, communicating pipe is fixed with driving motor's shell, the intercommunication has the material loading passageway on communicating pipe, driving motor's output shaft is located communicating pipe and the inside screw rod of outer barrel, the inboard of outer barrel is provided with the inner tube, and be provided with the heating intermediate layer between inner tube and outer barrel, the material loading end of outer barrel is fixed with the air-supply line with heating intermediate layer intercommunication. This device adds the interlayer in the barrel, and the flue gas of retrieving passes through in the interlayer, avoids direct contact plastics, and the filter tube can filter most granule in the recovery flue gas, reduces the interbedded frequency of clean heating.

Description

Energy-saving hot air type plastic extruder

Technical Field

The utility model relates to a plastic extruder technical field especially relates to an energy-conserving hot-blast formula plastic extruder.

Background

In the production process of PVC plastics, raw materials need to be extruded and molded by a plastic extruder, the plastic extruder consists of an extrusion system, a transmission system and a heating and cooling system, and the conventional plastic extruder is usually heated by a resistor, so that the plastic in a cylinder is heated from the outside to reach the temperature required by the process operation. The resistance heating is easy to heat unevenly and consumes electric energy, so that a hot air type plastic extruder heated by recycling smoke is available on the market, but the smoke directly contacts the plastic during heating, so that the quality of the plastic is easily influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problem that the smoke gas existing in the prior art easily influences the quality of the plastic, and providing an energy-saving hot air type plastic extruder.

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

the utility model provides an energy-conserving hot-blast formula plastics extruder, includes rack, communicating pipe and outer barrel, install driving motor on the rack, outer barrel is fixed on the rack, communicating pipe and outer barrel are coaxial and be linked together, and the end of outer barrel installs extrusion tooling, communicating pipe is fixed with driving motor's shell, the intercommunication has the material loading passageway on communicating pipe, driving motor's output shaft has the screw rod that is located communicating pipe and outer barrel inside, the inboard of outer barrel is provided with the inner tube, and is provided with the heating intermediate layer between inner tube and outer barrel, the material loading end of outer barrel is fixed with the air-supply line with heating intermediate layer intercommunication, the lower extreme of outer barrel is fixed with the outlet duct with heating intermediate layer intercommunication.

Preferably, the feeding channel is connected with a feeding hopper through a flange.

Preferably, the screw is coaxial with the outer barrel.

Preferably, the tail end of the air inlet pipe is communicated with a filter pipe with the diameter larger than that of the air inlet pipe, a filter screen is arranged at the junction of the filter pipe and the air inlet pipe, and the filter pipe is communicated with a flue gas pipe.

Preferably, the lower end of the filter tube is opened, and the lower end of the filter tube is connected with a screw cap in a threaded manner.

Preferably, the lower side of the filter screen is provided with a fixture block fixed with the inner wall of the filter tube.

The utility model has the advantages that:

1. this device adds the interlayer in the barrel, and the flue gas of retrieving passes through in the interlayer, avoids direct contact plastics, has avoided causing the influence to the quality of plastics.

2. The air inlet pipe is connected with the filter pipe, most particles in the recovered flue gas can be filtered, the interior of the heating interlayer is kept clean, and the frequency of cleaning the heating interlayer is reduced.

Drawings

FIG. 1 is a schematic view of the energy-saving hot air type plastic extruder according to the present invention;

FIG. 2 is a schematic view of a cross-sectional structure of a filter tube of an energy-saving hot air type plastic extruder provided by the present invention;

fig. 3 is a schematic view of the cross-sectional structure of an outer barrel of an energy-saving hot air type plastic extruder provided by the present invention.

In the figure: 1 cabinet, 2 driving motors, 3 communicating pipes, 4 outer machine barrels, 5 feeding channels, 6 feeding hoppers, 7 screws, 8 inner cylinders, 9 heating interlayers, 10 extrusion dies, 11 air inlet pipes, 12 filter pipes, 13 filter screens, 14 clamping blocks, 15 spiral covers, 16 flue gas pipes and 17 air outlet pipes.

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.

Referring to fig. 1-3, an energy-saving hot air type plastic extruder comprises a cabinet 1, a communicating pipe 3 and an outer barrel 4, wherein a driving motor 2 is installed on the cabinet 1, the outer barrel 4 is fixed on the cabinet 1, the communicating pipe 3 is coaxial and communicated with the outer barrel 4, an extrusion die 10 is installed at the tail end of the outer barrel 4, the communicating pipe 3 is fixed with a shell of the driving motor 2, a feeding channel 5 is communicated with the communicating pipe 3, an output shaft of the driving motor 2 is connected with a screw 7 positioned inside the communicating pipe 3 and the outer barrel 4, the screw 7 is coaxial with the outer barrel 4, an inner barrel 8 is arranged on the inner side of the outer barrel 4, a heating interlayer 9 is arranged between the inner barrel 8 and the outer barrel 4, an air inlet pipe 11 communicated with the heating interlayer 9 is welded at the feeding end of the outer barrel 4, and an air outlet pipe 17 communicated with the heating.

Wherein, the feeding channel 5 is connected with a feeding hopper 6 by a flange.

The tail end of the air inlet pipe 11 is communicated with a filter pipe 12 with the diameter larger than that of the air inlet pipe 11, a filter screen 13 is installed at the junction of the filter pipe 12 and the air inlet pipe 11, a flue gas pipe 16 is communicated with the filter pipe 12, the lower end of the filter pipe 12 is open, the lower end of the filter pipe 12 is in threaded connection with a spiral cover 15, and a clamping block 14 fixed with the inner wall of the filter pipe 12 is arranged on the lower side of the filter screen 13 and used for fixing the filter screen 13.

When plastic extrusion processing is carried out, raw materials are sent into the communicating pipe 3 through the feeding hopper 6, the raw materials are driven by the screw 7 to advance and are extruded, the raw materials are extruded through the extrusion die 10, recovered flue gas enters through the flue gas pipe 16, the recovered flue gas is filtered through the filter screen 13 in the filter pipe 12 and then is sent into the heating interlayer 9 through the air inlet pipe 11, and in the extrusion process, the flue gas continuously separates the wall of the inner cylinder 8 to heat the plastic raw materials and then is discharged through the air outlet pipe 17.

And (3) filtering impurities in the recovered flue gas by using a filter screen 13, then keeping the impurities in the recovered flue gas in a filter tube 12, screwing down a screw cap 15 at the lower end of the filter tube 12 at intervals, pouring the impurities in the screw cap 15, taking down the filter screen 13, cleaning, returning to the original position, and screwing the screw cap 15 on the filter tube 12.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. An energy-saving hot air type plastic extruder comprises a cabinet (1), a communicating pipe (3) and an outer machine barrel (4), and is characterized in that a driving motor (2) is installed on the cabinet (1), the outer machine barrel (4) is fixed on the cabinet (1), the communicating pipe (3) is coaxial and communicated with the outer machine barrel (4), an extrusion die (10) is installed at the tail end of the outer machine barrel (4), the communicating pipe (3) is fixed with a shell of the driving motor (2), a feeding channel (5) is communicated with the communicating pipe (3), an output shaft of the driving motor (2) is connected with a screw (7) positioned inside the communicating pipe (3) and the outer machine barrel (4), an inner barrel (8) is arranged on the inner side of the outer machine barrel (4), a heating interlayer (9) is arranged between the inner barrel (8) and the outer machine barrel (4), an air inlet pipe (11) communicated with the heating interlayer (9) is fixed at the feeding end of the outer machine barrel (4), and a gas outlet pipe (17) communicated with the heating interlayer (9) is fixed at the discharging end of the outer machine barrel (4).

2. An energy-saving hot-air type plastic extruder as claimed in claim 1, wherein the feeding channel (5) is flanged with a feeding hopper (6).

3. An energy-saving hot-air type plastic extruder as claimed in claim 1, wherein the screw (7) is coaxial with the outer cylinder (4).

4. An energy-saving hot air type plastic extruder as claimed in claim 1, wherein the end of the air inlet pipe (11) is connected with a filter pipe (12) with a diameter larger than that of the air inlet pipe (11), a filter screen (13) is installed at the junction of the filter pipe (12) and the air inlet pipe (11), and the filter pipe (12) is connected with a flue gas pipe (16).

5. An energy-saving hot air type plastic extruder as claimed in claim 4, wherein the lower end of the filter tube (12) is open, and the lower end of the filter tube (12) is connected with a screw cap (15) in a threaded manner.

6. An energy-saving hot-air type plastic extruder as claimed in claim 4, wherein the lower side of the filter screen (13) is provided with a block (14) fixed with the inner wall of the filter tube (12).