CN216409606U

CN216409606U - Raw material drying device of plastic film extruder

Info

Publication number: CN216409606U
Application number: CN202123122982.6U
Authority: CN
Inventors: 乔长忠; 杨友全
Original assignee: Hubei Changzheng Packaging Co ltd
Current assignee: Hubei Changzheng Packaging Co ltd
Priority date: 2021-12-13
Filing date: 2021-12-13
Publication date: 2022-04-29
Anticipated expiration: 2031-12-13

Abstract

The utility model provides a raw material drying device of a plastic film extruder, which comprises a filter cylinder vertically and rotatably arranged in a rectangular feeding pipe of the plastic film extruder, wherein the middle part of the outer peripheral surface of the filter cylinder is provided with a ventilating piece for gas circulation, the outer wall of the feeding pipe is fixedly provided with a fan, the air outlet of the fan is fixedly connected with a flow guide pipe for guiding the air outlet of the fan into the filter cylinder, a resistance wire for heating air is arranged in the flow guide pipe, and the outer wall of the feeding pipe is fixedly provided with a filter motor for driving the filter cylinder to rotate through a transmission piece. The utility model solves the problem that the plastic film extruder in the prior art cannot clean the moisture of the entering plastic raw materials, and has the effect of improving the product quality.

Description

Raw material drying device of plastic film extruder

Technical Field

The utility model relates to the technical field of plastic film production equipment, in particular to a raw material drying device of a plastic film extruder.

Background

The main machine of the plastic extruder is an extruding machine which consists of an extruding system, a transmission system and a heating and cooling system. Plastics pass through the inlet pipe and get into the spiral extrusion structure in, the spiral extrusion structure promotes the plastic granules and removes, and plastics are heated to the molten condition in the removal process, and through the filtration of filter screen, plastics are extruded from the die head, are blown into cylindric film by compressed air when extruding, are at last rolled up, realize the production of plastic film promptly.

Because plastic materials is through wasing before the pan feeding, contain certain moisture in the plastic materials, even plastics are through the drying, but the humidity of environment can cause to contain certain moisture in the plastic materials equally for by the dry plastic materials contain certain moisture behind the inlet pipe that gets into the plastic film extruder, and the moisture in the plastic materials can be direct causes the influence to the quality of product, current plastic film extruder does not set up the device of getting rid of the moisture of the plastic materials of feeding.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects in the prior art, the utility model provides a raw material drying device of a plastic film extruder, which solves the problem that the plastic film extruder in the prior art cannot clean the moisture of the entering plastic raw material.

According to the embodiment of the utility model, the raw material drying device of the plastic film extruder comprises a filter cylinder which is vertically and rotatably arranged in a rectangular feeding pipe of the plastic film extruder, a ventilating piece for gas circulation is arranged in the middle of the outer peripheral surface of the filter cylinder, a fan is fixedly arranged on the outer wall of the feeding pipe, a guide pipe for guiding the outlet air of the fan into the filter cylinder is fixedly connected to the air outlet of the fan, a resistance wire for heating air is arranged in the guide pipe, and a filter motor for driving the filter cylinder to rotate through a transmission piece is fixedly arranged on the outer wall of the feeding pipe.

Preferably, the piece of ventilating is annular filter screen, and the filter screen inner peripheral surface evenly sets up the member and is fixed in through the member in the cartridge filter, the aperture of filter screen is less than plastic materials's particle diameter, inlet pipe outer wall fixedly connected with bracing piece and the expansion end fixedly connected with filter residue board through the bracing piece, filter residue board are located the inside of cartridge filter and relative the axis slope of cartridge filter sets up.

Preferably, the filter residue plate is an arc-shaped plate protruding downwards.

Preferably, the top end of the filter residue plate is close to the movable end of the draft tube.

Preferably, the inner wall fixed mounting of inlet pipe has the connecting rod and has the scraper blade through connecting rod fixed mounting, one side of scraper blade with the laminating of the outer peripheral face of filter screen.

Compared with the prior art, the utility model has the following beneficial effects:

drive the cartridge filter through filtering motor and rotate, can realize the dispersion of plastic raw materials at cartridge filter pivoted in-process, the fan passes through the heat pipe simultaneously and inputs the air that is heated to the cartridge filter in, make the temperature of cartridge filter rise, the even and cartridge filter contact of dispersed plastic raw materials, make plastic raw materials heated, moisture in the plastic raw materials is heated and is evaporated, and carry out gas exchange through the piece of breathing in, make plastic raw materials by abundant drying, the quality of product has been promoted.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention.

Fig. 2 is a schematic diagram of an internal structure according to an embodiment of the present invention.

In the above drawings: 1. a feed pipe; 2. a filter cartridge; 3. filtering with a screen; 4. a transmission member; 5. a filter motor; 6. a slag filtering plate; 7. a support bar; 8. a connecting rod; 9. a squeegee; 10. a fan; 11. and a flow guide pipe.

Detailed Description

The technical solution of the present invention is further explained with reference to the drawings and the embodiments.

As shown in fig. 1-2, in order to dry a plastic raw material entering a plastic film extruder, an embodiment of the present invention provides a raw material drying device for a plastic film extruder, including a filter cartridge 2 vertically and rotatably installed in a rectangular feed pipe 1 of the plastic film extruder, a ventilation member for air circulation is disposed in the middle of the outer peripheral surface of the filter cartridge 2, a fan 10 is fixedly installed on the outer wall of the feed pipe 1, a flow guide pipe 11 for guiding the air outlet of the fan 10 into the filter cartridge 2 is fixedly connected to the air outlet of the fan 10, a resistance wire for heating the air is disposed in the flow guide pipe 11, and a filter motor 5 for driving the filter cartridge 2 to rotate through a transmission member 4 is fixedly installed on the outer wall of the feed pipe 1.

The dried plastic material is transported by means of a lifting device to a hopper (not shown) at the free end of the feed pipe 1, through which the plastic material is fed into the feed pipe 1. Filter motor 5 and reduction gear and be fixed in the outer wall of inlet pipe 1 through the mounting bracket, filter motor 5 is connected with reduction gear drive, the output shaft fixed connection driving medium 4 of reduction gear, driving medium 4 can be the pulley group, driving pulley coaxial fixation is on the output shaft of reduction gear, driven pulley is the loop configuration, coaxial fixation is in the one end of cartridge filter 2 and is connected with driving pulley drive through the belt, driving medium 4 also can be gear train or sprocket group, all can realize the rotation of filter motor 5 drive cartridge filter 2. The plastic raw materials falls from inlet pipe 1, during the cartridge filter 2 driven by filter motor 5, plastic raw materials and 2 clashes of cartridge filter, make plastic raw materials disperse and contact in cartridge filter 2, fan 10 blows to flow guide pipe 11, start the resistance wire in the flow guide pipe 11, resistance wire convection passes through the air heating in the flow guide pipe 11, the expansion end of flow guide pipe 11 is just to the one end of cartridge filter 2, make the air that is heated get into cartridge filter 2, cartridge filter 2 is heated, partly in the high temperature air gets into in inlet pipe 1 through the piece of ventilating simultaneously, with plastic raw materials, also heat plastic raw materials when cartridge filter 2 that is heated simultaneously fully contacts with the plastic raw materials of dispersion, make the moisture in the plastic raw materials evaporate rapidly, the vapor that evaporates discharges through the piece of ventilating, realize the stoving of plastic raw materials promptly.

As shown in fig. 1-2, for filtering powder or fine impurities contained in the plastic raw material, the ventilation member is an annular filter screen 3, the inner peripheral surface of the filter screen 3 is uniformly provided with a rod member and fixed in the filter cartridge 2 through the rod member, the aperture of the filter screen 3 is smaller than the particle size of the plastic raw material, the outer wall of the inlet pipe 1 is fixedly connected with a support rod 7 and a filter residue plate 6 through the movable end of the support rod 7, and the filter residue plate 6 is located inside the filter cartridge 2 and is inclined relative to the axis of the filter cartridge 2.

Filter screen 3 reinforces through the member to resist the impact of plastics raw materials whereabouts, avoid the filter screen to take place deformation, the plastics raw materials is in contact with filter screen 3 after, falls down from the both sides of filter screen 3, and powder and tiny impurity in the plastics raw materials pass filter screen 3 and fall on filter residue board 6, and filter residue board 6 of slope carries out the water conservancy diversion to powder and tiny impurity and discharges it in following inlet pipe 1.

Set up filter screen 3, the air exchange in the inlet pipe 1 of being convenient for improves plastic materials's heating efficiency, further improvement plastic materials's drying efficiency.

As shown in fig. 1-2, in order to prevent the screened powder and fine impurities from splashing from two sides of the filter residue plate 6 after falling on the filter residue plate 6, the filter residue plate 6 is an arc-shaped plate protruding downwards. The powder and fine impurities falling on the filter slag plate 6 are blocked by the two higher sides of the filter slag plate 6, so that the filtering quality is improved.

As shown in fig. 1, in order to further improve the filtering quality, the top end of the filter residue plate 6 is close to the movable end of the draft tube 11. The powder and the fine impurities filtered out partly fall on the filter residue plate 6, and the heated air guided by the guide pipe 11 in the falling process of the other part is blown out of the feeding pipe 1. In order to avoid the dust generated by the blown powder and the fine impurities and to pollute the air, a filter bag is sleeved at one end of the filter cylinder 2 far away from the fan 10 for filtering.

As shown in figure 1, in order to avoid the plastic raw material to block the meshes of the filter screen 3, the inner wall of the inlet pipe 1 is fixedly provided with a connecting rod 8 and a scraper 9 through the connecting rod 8, and one side of the scraper 9 is attached to the peripheral surface of the filter screen 3. The plastic raw material particles blocked on the meshes of the filter screen 3 are scraped by the scraper 9, and the effectiveness of the filter screen 3 is maintained.

Finally, the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all of them should be covered in the claims of the present invention.

Claims

1. The utility model provides a raw materials drying device of plastic film extruder which characterized in that: install cartridge filter (2) in rectangular inlet pipe (1) of plastic film extruder including perpendicular rotation, the middle part of cartridge filter (2) outer peripheral face is provided with the ventilation spare that supplies the gas circulation, the outer wall fixed mounting of inlet pipe (1) has fan (10), the air outlet department fixedly connected with of fan (10) air-out water conservancy diversion to honeycomb duct (11) in cartridge filter (2), be provided with the resistance wire that is used for heated air in honeycomb duct (11), inlet pipe (1) outer wall fixed mounting drives cartridge filter (2) pivoted filter motor (5) through driving medium (4).

2. The raw material drying apparatus of a plastic film extruder as claimed in claim 1, wherein: the ventilation part is annular filter screen (3), and filter screen (3) inner peripheral surface evenly sets up the member and is fixed in through the member in cartridge filter (2), the aperture of filter screen (3) is less than the particle diameter of plastic raw materials, inlet pipe (1) outer wall fixedly connected with bracing piece (7) and through the expansion end fixedly connected with filter residue board (6) of bracing piece (7), filter residue board (6) are located the inside of cartridge filter (2) and relative the axis slope of cartridge filter (2) sets up.

3. The raw material drying apparatus of a plastic film extruder as claimed in claim 2, wherein: the filter residue plate (6) is an arc-shaped plate protruding downwards.

4. The raw material drying apparatus of a plastic film extruder as claimed in claim 3, wherein: the top end of the slag filtering plate (6) is close to the movable end of the draft tube (11).

5. The raw material drying apparatus of a plastic film extruder as claimed in claim 2, wherein: the inner wall fixed mounting of inlet pipe (1) has connecting rod (8) and has scraper blade (9) through connecting rod (8) fixed mounting, one side of scraper blade (9) with the outer peripheral face laminating of filter screen (3).