CN214294383U

CN214294383U - Double-screw plastic extruding machine heating device

Info

Publication number: CN214294383U
Application number: CN202022685216.XU
Authority: CN
Inventors: 刘宽良
Original assignee: Sichuan Hongyi Plastic Technology Co ltd
Current assignee: Sichuan Hongyi Plastic Technology Co ltd
Priority date: 2020-11-19
Filing date: 2020-11-19
Publication date: 2021-09-28
Anticipated expiration: 2030-11-19

Abstract

The utility model discloses a heating device of a double-screw plastic extruding machine, which comprises a charging barrel, wherein a feeding barrel is arranged at the upper part of the right end of the charging barrel, the feeding barrel consists of a feeding outer plate, a feeding inner plate and a heating plate, the heating plate is fixedly connected to the inner wall of the feeding outer plate, and the feeding inner plate is fixedly connected to the inner wall of the heating plate; the inner wall of the feeding inner plate is uniformly provided with drying materials, the right side wall of the charging barrel is fixedly connected with four connecting ports, and the four connecting ports are uniformly distributed on the right side wall of the charging barrel; the left end of feed cylinder is provided with extrudes the head, the left surface fixedly connected with mount of extruding the head, the inside of mount is provided with the fixed slot, the inside sliding connection of fixed slot has solid fixed ring, gu fixed ring's inside fixedly connected with filter screen. The utility model discloses in, carry out drying and preheating to the material through hot plate and dry piece, the bubble that the material produced in the heating process that has significantly reduced can effectively improve the quality of extruded piece.

Description

Double-screw plastic extruding machine heating device

Technical Field

The utility model relates to a extruding machine equipment field especially relates to a double screw extruding machine heating device.

Background

The working principle of the plastic extruder is that a screw with a specific shape rotates in a heated cylinder, plastic fed from a hopper is extruded forwards to be uniformly plasticized, namely melted, and the plastic is extruded into continuous plastic layers with various shapes through a machine head and molds with different shapes. The melting of the plastic granules is carried out in the barrel of the extruder, and the plastic is changed from granular solid into plastic viscous fluid by the rotation of the screw.

Chinese patent No. CN208812506U discloses a heating device for an extruder, which allows the rubber material to be filtered by a screen to remove solid particles, thereby avoiding the influence on the quality of the final product. The inner chamber diameter of the inner chamber of connector and feed cylinder is unanimous, extrudes first inner chamber diameter and follows to extruding the mouthful direction and dwindle gradually, avoids the sizing material to appear the vortex and be detained and lead to scorching because the inner chamber grow from the discharge end after carrying away to improve the processingquality of plastic products and the stability that the extruding machine used. However, the device is not provided with a plastic preheating device and a material drying device, so that the plastic is easy to generate bubbles in the heating process, and the quality of an extruded piece is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects in the prior art and providing a heating device of a double-screw extruder.

In order to achieve the above purpose, the utility model adopts the following technical scheme: a heating device of a double-screw plastic extruding machine comprises a charging barrel, wherein a feeding barrel is arranged at the upper part of the right end of the charging barrel, the feeding barrel consists of a feeding outer plate, a feeding inner plate and a heating plate, the heating plate is fixedly connected to the inner wall of the feeding outer plate, and the feeding inner plate is fixedly connected to the inner wall of the heating plate;

a plurality of drying blocks are uniformly arranged on the inner wall of the feeding inner plate, and an activated aluminum oxide material is arranged in each drying block;

the right side wall of the charging barrel is fixedly connected with four connectors which are uniformly distributed on the right side wall of the charging barrel;

the left end of feed cylinder is provided with extrudes the head, the left surface fixedly connected with mount of extruding the head, the inside of mount is provided with the fixed slot, the inside sliding connection of fixed slot has solid fixed ring, gu fixed ring's inside fixedly connected with filter screen.

As a further description of the above technical solution:

the outer surface fixed connection of feed cylinder has the coil zone of heating, the inside in coil zone of heating is provided with heating coil.

As a further description of the above technical solution:

the outer surface of the coil heating layer is fixedly connected with a heat insulation layer, and the outer surface of the heat insulation layer is fixedly connected with a shell.

As a further description of the above technical solution:

the inside of feed cylinder is provided with extrudes the screw rod, the external surface fixedly connected with paddle of extruding the screw rod, the right-hand member of extruding the screw rod runs through the feed cylinder right side wall.

As a further description of the above technical solution:

the upper end of the fixing ring is fixedly connected with a pulling block, and the pulling block is arranged on the upper side of the fixing frame.

As a further description of the above technical solution:

the lower extreme of feed barrel is provided with the feed inlet, the feed barrel passes through the feed inlet intercommunication with the feed cylinder.

As a further description of the above technical solution:

the extrusion screw, the blades and the filter screen are made of high-temperature resistant materials.

As a further description of the above technical solution:

the heat insulation layer is internally provided with heat insulation cotton.

The utility model discloses following beneficial effect has:

1. compared with the prior art, this double screw extruder heating device has set up the hot plate between the feeding inner panel and the feeding planking of storage bucket, and the hot plate can preheat the material, reduces plastics because the violent change in temperature produces the bubble, and then arouses the quality problem of extruded piece.

2. Compared with the prior art, the heating device of the double-screw extruder is fixedly connected with the drying block on the inner wall of the feeding inner plate, so that the moisture on the surface of the plastic can be further removed, and the adverse effect of water vapor generated by the evaporation of the surface moisture during the heating of the plastic is prevented.

3. Compared with the prior art, the double-screw extruder heating device is provided with the connecting port on the side wall of the charging barrel, so that the cleaning resin can be introduced into the double-screw extruder heating device when the double-screw extruder heating device is used for cleaning the double-screw extruder heating device, and the cleaning work is simpler and faster.

4. Compared with the prior art, the heating device of the double-screw extruder is provided with the filter screen near the extrusion head, so that the filter screen can filter to remove solid particles, the influence on the quality of finished products is avoided, and the filter screen is movably connected with the fixing frame, so that the double-screw extruder is convenient to clean.

Drawings

FIG. 1 is a schematic view of a heating apparatus of a twin-screw extruder according to the present invention;

FIG. 2 is an enlarged view of the heating device A of the twin-screw extruder of the present invention;

FIG. 3 is an enlarged view of a heating device B of the twin-screw extruder of the present invention;

fig. 4 is a schematic view of a fixing ring of a heating device of a twin-screw extruder according to the present invention.

Illustration of the drawings:

1. a charging barrel; 2. a feed inlet; 3. a connecting port; 4. extruding a screw; 5. a paddle; 6. a housing; 7. a thermal insulation layer; 8. a coil heating layer; 9. a heating coil; 10. a charging barrel; 11. a fixing ring; 12. fixing grooves; 13. a filter screen; 14. a fixed mount; 15. pulling the block; 16. an extrusion head; 17. drying the blocks; 18. a feeding inner plate; 19. heating plates; 20. and feeding an outer plate.

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. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they 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.

Referring to fig. 1-4, the present invention provides an embodiment: including feed cylinder 10, the outer fixed surface of feed cylinder 10 is connected with coil zone of heating 8, the inside of coil zone of heating 8 is provided with heating coil 9, can produce magnetic field after heating coil 9 circular telegram, feed cylinder 10 receives electromagnetic induction can produce the heat and heat the material in magnetic field, the outer fixed surface of coil zone of heating 8 is connected with insulating layer 7, reduce thermal giving off, insulating layer 7 is inside to be provided with thermal-insulated cotton, good thermal insulation material, the outer fixed surface of insulating layer 7 is connected with shell 6, the inside of feed cylinder 10 is provided with extrusion screw 4, make the material transport left, extrusion screw 4's outer fixed surface is connected with paddle 5, extrusion screw 4's right-hand member runs through feed cylinder 10 right side wall.

Feed barrel 1 is provided with on the right-hand member upper portion of feed cylinder 10, and feed barrel 1 comprises feeding planking 20, feeding inner panel 18 and hot plate 19, and hot plate 19 fixed connection is in the inner wall of feeding planking 20 for to preheating of material, feeding inner panel 18 fixed connection in the inner wall of hot plate 19, the lower extreme of feed barrel 1 is provided with feed inlet 2, and feed barrel 1 and feed cylinder 10 pass through feed inlet 2 intercommunication.

The inner wall of the feeding inner plate 18 is uniformly provided with a plurality of drying blocks 17, and the inside of each drying block 17 is provided with an active alumina material which is a good high-temperature-resistant drying material, so that the material can be further dried.

The four connectors 3 are fixedly connected to the right side wall of the charging barrel 10, the four connectors 3 are uniformly distributed on the right side wall of the charging barrel 10, and when the connectors 3 are opened, cleaning resin can be introduced to clean the charging barrel 10 and the extrusion head 16.

The left end of feed cylinder 10 is provided with extrudes head 16, extrudes head 16's left fixed surface and is connected with mount 14, and the inside of mount 14 is provided with fixed slot 12, and the inside sliding connection of fixed slot 12 has solid fixed ring 11, and solid fixed ring 11's inside fixedly connected with filter screen 13 for filter solid particle, extrude screw rod 4, paddle 5, filter screen 13 and adopt high temperature resistant material to make, and solid fixed ring 11's upper end fixedly connected with draws piece 15, draws piece 15 to set up in mount 14 upside.

The working principle is as follows: firstly, materials are put into a feeding barrel 1, the materials enter a charging barrel 10 through a feeding hole 2 after being preheated by a heating plate 19 and dried by a drying block 17, the materials are heated by a heating coil 9 in a coil heating layer 8 to be in a molten state, the materials in the molten state move leftwards under the extrusion action of an extrusion screw rod 4, and finally, the materials are successfully extruded under the filtering action of a filter screen 13. When the device is cleaned, the connection port 3 is opened, the filter screen 13 is pulled out by the pull block 15, and the cleaning resin is introduced into the connection port 3 to complete the cleaning.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims

1. A heating device for a twin-screw extruder, comprising a barrel (10), characterized in that: a feeding barrel (1) is arranged at the upper part of the right end of the charging barrel (10), the feeding barrel (1) is composed of a feeding outer plate (20), a feeding inner plate (18) and a heating plate (19), the heating plate (19) is fixedly connected to the inner wall of the feeding outer plate (20), and the feeding inner plate (18) is fixedly connected to the inner wall of the heating plate (19);

a plurality of drying blocks (17) are uniformly arranged on the inner wall of the feeding inner plate (18), and an activated aluminum oxide material is arranged in each drying block (17);

the right side wall of the charging barrel (10) is fixedly connected with four connecting ports (3), and the four connecting ports (3) are uniformly distributed on the right side wall of the charging barrel (10);

the left end of feed cylinder (10) is provided with extrudes head (16), the left surface fixedly connected with mount (14) of extruding head (16), the inside of mount (14) is provided with fixed slot (12), the inside sliding connection of fixed slot (12) has solid fixed ring (11), the inside fixedly connected with filter screen (13) of solid fixed ring (11).

2. The heating apparatus of a twin screw extruder of claim 1, wherein: the outer fixed surface of feed cylinder (10) is connected with coil zone of heating (8), the inside of coil zone of heating (8) is provided with heating coil (9).

3. A twin screw extruder heating apparatus as claimed in claim 2, characterised in that: the outer fixed surface of coil zone of heating (8) is connected with insulating layer (7), the outer fixed surface of insulating layer (7) is connected with shell (6).

4. The heating apparatus of a twin screw extruder of claim 1, wherein: the inside of feed cylinder (10) is provided with extrudes screw rod (4), the external fixed surface of extruding screw rod (4) is connected with paddle (5), the right-hand member of extruding screw rod (4) runs through feed cylinder (10) right side wall.

5. The heating apparatus of a twin screw extruder of claim 1, wherein: the upper end of the fixing ring (11) is fixedly connected with a pulling block (15), and the pulling block (15) is arranged on the upper side of the fixing frame (14).

6. The heating apparatus of a twin screw extruder of claim 1, wherein: the lower extreme of feed barrel (1) is provided with feed inlet (2), feed barrel (1) and feed cylinder (10) are through feed inlet (2) intercommunication.

7. The heating apparatus of claim 4 in a twin screw extruder, wherein: the extrusion screw (4), the blades (5) and the filter screen (13) are made of high-temperature-resistant materials.

8. A heating apparatus of a twin screw extruder as claimed in claim 3, wherein: the heat insulation layer (7) is internally provided with heat insulation cotton.