CN219114741U - Feeding and drying device of plastic extruding machine - Google Patents

Abstract

The utility model belongs to the technical field of plastic extruders, and particularly relates to a feeding and drying device of a plastic extruder, which comprises a plastic extruder charging barrel, wherein a cylindrical charging box and a cylindrical discharging box are arranged above the plastic extruder charging barrel, the discharging box is communicated with the plastic extruder charging barrel, a cylindrical heating box and a heat preservation cover are fixedly connected between the charging box and the discharging box, the heat preservation cover is positioned outside the heating box and is coaxially arranged with the heating box, an annular cavity is formed between the heating box and the heat preservation cover, a spiral material pipe is fixedly connected in the annular cavity, and the upper end and the lower end of the spiral material pipe are respectively communicated with the charging box and the discharging box. The utility model can effectively heat and dry plastic particles, remove water while conveying the plastic particles, and ensure the product quality while not affecting the normal extrusion molding efficiency.

Description

Feeding and drying device of plastic extruding machine

Technical Field

The utility model relates to the technical field of plastic extruding machines, in particular to a feeding and drying device of a plastic extruding machine.

Background

Extrusion, also known as extrusion, is a plastic molding process and is one of the important methods for molding thermoplastics. The plastic extruder is to heat plastic material to form viscous flow, to form continuous body with cross section similar to the shape of the mouth mold under the action of pressure, and to cool and shape into glass state.

Most of existing plastic extruders use granular raw materials, so that the granular raw materials are convenient to heat and melt, the granular plastics need to be cleaned before being added into the plastic extruder, dust impurities are avoided, the product quality is guaranteed, but a feeding device of the plastic extruder does not have a moisture drying function, and if the cleaned granular raw materials contain moisture, when the moisture enters the plastic extruder to melt, the moisture is gasified and cannot be effectively discharged, a large number of bubbles are generated in liquid plastics, and the product quality is reduced.

Therefore we propose an extruder feed dryer to solve the above problems.

Disclosure of Invention

The utility model aims to solve the defects in the prior art and provides a feeding and drying device of an extruding machine.

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

the utility model provides an extruding machine feeding drying device, includes the extruding machine feed cylinder, extruding machine feed cylinder top is equipped with cylindrical material loading case and unloading case, unloading case and extruding machine feed cylinder intercommunication, common fixedly connected with columniform heating box and heat preservation cover between material loading case and the unloading case, the heat preservation cover is located the heating box and coaxial setting with it, form the annular chamber between heating box and the heat preservation cover, annular intracavity fixedly connected with spiral pipe, the upper and lower both ends of spiral pipe communicate with material loading case and unloading case respectively, offered a plurality of intercommunications with spiral pipe intercommunication on the inner peripheral wall of heating box, the heating box lower extreme intercommunication has lower box body, lower box body lower extreme extends to down in the workbox, fixed mounting has the fan in the lower box body, the fan top is equipped with the heater rod, the heating box upper end intercommunication has last box body, it extends to the upper box body in, and upper end intercommunication has the outlet duct, outlet duct and go up the coaxial setting of feed box and run through its in the roof.

Preferably, a leakage-proof net is arranged in each communication hole.

Preferably, one side of the lower box body is communicated with an air inlet pipe, and one end of the air inlet pipe, which is far away from the lower box body, extends out of the blanking box.

Preferably, the outside cover of outlet duct is equipped with the rotation pipe, the rotation pipe rotates with last workbin inner roof and last box body to be connected, fixedly connected with two puddlers on the outer peripheral face of rotation pipe, puddler lower extreme fixedly connected with and last workbin inner bottom wall laminating push pedal.

Preferably, a toothed ring is fixedly sleeved on the peripheral surface of the rotating pipe, a gear is meshed with one side of the toothed ring, and a motor for driving the gear to rotate is fixedly arranged at the upper end of the feeding box.

Preferably, the upper end of the feeding box is communicated with a feeding hopper.

Compared with the prior art, the device has the advantages that:

through setting up screw pipe, heating cabinet and fan, granule plastics can follow the feeding box of sending into of last workbin long distance through the screw pipe, the in-process, the heating rod heats the air that the fan blows, make the heating cabinet intensify, heat the plastic granules in the screw conveying pipeline, make the moisture gasification of its surface, make vapor get into the heating cabinet from communicating pipe, and discharge from the outlet duct, granule plastics after the heating dewatering get into the unloading box, directly get into the extruder feed cylinder at last, do not contain liquid water in the guarantee granule plastics, guarantee the normal extrusion work of extruder, improve product quality.

Drawings

FIG. 1 is a front perspective view of an extruder feed dryer according to the present utility model;

FIG. 2 is an enlarged schematic view of the structure of FIG. 1A;

fig. 3 is an enlarged schematic view of the structure at B in fig. 1.

In the figure: 1 plastic extruding machine charging cylinder, 2 blanking box, 3 feeding box, 4 heating box, 5 heat preservation cover, 6 spiral material pipe, 7 intercommunicating pore, 8 leak protection net, 9 lower box body, 10 fan, 11 air inlet pipe, 12 heating rod, 13 upper box body, 14 outlet pipe, 15 rotation pipe, 16 stirring rod, 17 push pedal, 18 toothed ring, 19 gear, 20 motor.

Description of the embodiments

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.

Referring to fig. 1-3, an extruder feed dryer apparatus includes an extruder barrel 1, the extruder barrel 1 being in communication with a feed port of an extruder. A cylindrical feeding box 3 and a cylindrical discharging box 2 are arranged above the plastic extruding machine charging barrel 1, the discharging box 2 is communicated with the plastic extruding machine charging barrel 1, and a feeding hopper is communicated with the upper end of the feeding box 3 and used for adding plastic particles into the feeding box 3. The cylindrical heating box 4 and the heat preservation cover 5 are fixedly connected between the feeding box 3 and the discharging box 2, the heat preservation cover 5 is arranged outside the heating box 4 and coaxially arranged with the heating box 4, and the heat preservation cover 5 plays a role in heat preservation. An annular cavity is formed between the heating box 4 and the heat preservation cover 5, a spiral material pipe 6 is fixedly connected in the annular cavity, the upper end and the lower end of the spiral material pipe 6 are respectively communicated with the feeding box 3 and the discharging box 2, the spiral material pipe 6 is used for conveying plastic particles, and the plastic particles in the feeding box 3 can be conveyed into the discharging box 2.

The inner peripheral wall of the heating box 4 is provided with a plurality of communication holes 7 communicated with the spiral material pipes 6, and each communication hole 7 is internally provided with a leakage-proof net 8, so that plastic particles can be prevented from passing through the communication hole 7. The lower extreme intercommunication of heating cabinet 4 has lower box body 9, and lower box body 9 lower extreme extends to in the unloading case 2, and lower box body 9 internal fixation has fan 10, and fan 10 top is equipped with heater rod 12, and during operation of fan 10, can blow the air to heater rod 12, and heater rod 12 circular telegram can heat the air of process, and high temperature air flows in heating cabinet 4, and heating cabinet 4 utilizes the heat conduction to heat the plastics granule in the spiral pipe 6, makes its attached moisture evaporation to get into heating cabinet 4 through intercommunicating pore 7. The upper end of the heating box 4 is communicated with an upper box body 13, the upper box body 13 extends into the upper feed box 3, the upper end is communicated with an air outlet pipe 14, the air outlet pipe 14 is coaxially arranged with the upper feed box 3 and penetrates through the inner top wall of the upper feed box, water vapor entering the heating box 4 is discharged from the air outlet pipe 14 along with air flow, and granular plastics subjected to heating and water removal enter the lower feed box 2 and finally directly enter the plastic extruder feed cylinder 1.

One side of the lower box body 9 is communicated with an air inlet pipe 11, and one end of the air inlet pipe 11 far away from the lower box body 9 extends out of the blanking box 2 for air inlet work.

The outside cover of outlet duct 14 is equipped with rotation pipe 15, rotation pipe 15 rotates with last workbin 3 roof and last box body 13 to be connected, fixedly connected with two puddler 16 on rotation pipe 15 outer peripheral face, puddler 16 lower extreme fixedly connected with and last workbin 3 inner bottom wall laminating push pedal 17, fixed sleeve has toothed ring 18 on the rotation pipe 15 outer peripheral face, toothed ring 18 one side meshing has gear 19, go up workbin 3 upper end fixed mounting has drive gear 19 pivoted motor 20, motor 20 can drive rotation pipe 15 through gear 19 and toothed ring 18, thereby utilize puddler 16 to stir the granule plastics, utilize push pedal 17 to promote the granule plastics removal, make the granule plastics can effectually get into in the screw pipe 6, avoid caking shutoff phenomenon.

The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.

Claims (6)

1. The utility model provides an extruder feeding drying device, includes extruder feed cylinder (1), its characterized in that, extruder feed cylinder (1) top is equipped with cylindrical last workbin (3) and unloading case (2), unloading case (2) and extruder feed cylinder (1) intercommunication, joint fixedly connected with columniform heating cabinet (4) and heat preservation cover (5) between last workbin (3) and unloading case (2), heat preservation cover (5) are located heating cabinet (4) outward and coaxial arrangement with it, form the annular chamber between heating cabinet (4) and heat preservation cover (5), annular intracavity fixedly connected with screw pipe (6), the upper and lower both ends of screw pipe (6) communicate with last workbin (3) and unloading case (2) respectively, set up on the inner peripheral wall of heating cabinet (4) a plurality of and screw pipe (6) intercommunication intercommunicating with hole (7), heating cabinet (4) lower extreme intercommunication has lower box (9), lower box (9) lower extreme extends to lower workbin (2) and is equipped with heater (10) in, upper and lower box (4) and upper and lower box (13) are equipped with upper and lower box (4) and upper and lower box (13) are equipped with fan (13), the air outlet pipe (14) and the feeding box (3) are coaxially arranged and penetrate through the inner top wall of the feeding box.

2. An extruder feed drying apparatus according to claim 1, wherein each of said communication holes (7) is provided therein with a leakage preventing net (8).

3. An extruder feeding and drying device according to claim 1, wherein one side of the lower box body (9) is communicated with an air inlet pipe (11), and one end of the air inlet pipe (11) far away from the lower box body (9) extends out of the blanking box (2).

4. The feeding and drying device of the plastic extruding machine according to claim 1, wherein a rotating pipe (15) is sleeved outside the air outlet pipe (14), the rotating pipe (15) is rotationally connected with the inner top wall of the feeding box (3) and the upper box body (13), two stirring rods (16) are fixedly connected to the outer peripheral surface of the rotating pipe (15), and a pushing plate (17) attached to the inner bottom wall of the feeding box (3) is fixedly connected to the lower end of the stirring rods (16).

5. The feeding and drying device for the plastic extruding machine according to claim 4, wherein a toothed ring (18) is fixedly sleeved on the peripheral surface of the rotating pipe (15), a gear (19) is meshed on one side of the toothed ring (18), and a motor (20) for driving the gear (19) to rotate is fixedly arranged at the upper end of the feeding box (3).

6. An extruder feed drying apparatus according to claim 1, wherein the upper end of the feed box (3) is connected with a feed hopper.

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