Discharging structure and double-screw extruder

Abstract

The utility model relates to the technical field of discharging of screw extruders, in particular to a discharging structure which comprises a processing pipeline, a material barrel is arranged at the top of the processing pipeline, a spiral extrusion roller is arranged in the processing pipeline, a discharging pipe is arranged on the side surface of the processing pipeline, and the interior of the discharging pipe is rotationally connected with the surface of a conveying auger. The surface of the conveying auger is fixedly connected with the inner ring surface of the bearing ring; the discharging structure and the double-screw extruder have the beneficial effects that the spiral extrusion roller is arranged in the processing pipeline, when the spiral extrusion roller rotates in the processing pipeline, materials in the processing pipeline are extruded and conveyed, and teeth of the driving gear ring are meshed with teeth of the fluted disc, so that the materials in the processing pipeline are extruded and conveyed; and therefore, materials in the discharging pipe are conveyed and discharged through the material conveying auger, and the situation that the interior of the discharging pipe is blocked due to the fact that plastic master batches are condensed in the discharging pipe is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of the discharge of a screw extruder, in particular to a discharge structure and a twin-screw extruder. Background Technique

[0002] Most plastics have the advantages of light weight, chemical stability, non-corrosion, good impact resistance, good insulation, good coloring property and low processing cost, so they are widely used in daily life and industrial production. The processing technology of thermoplastic plastics is mostly extrusion, and the screw extruder is a common extrusion device.

[0003] However, in the prior art, a discharge pipe is arranged on the existing twin-screw extruder, and the discharging operation is realized through the discharge pipe. However, a large amount of plastic masterbatch is easily adhered to the inner wall of the discharge pipe, which will cause the inner wall of the discharge pipe to be blocked. It is necessary to clean the inner wall of the discharge pipe. The existing method for cleaning the inner wall of the discharge pipe is mostly that personnel manually clean it by rubbing with a brush, rather than rotating the auger rod in the discharge pipe, which can not only play the role of cleaning the discharge, but also clean the plastic masterbatch adhered to the inner wall of the discharge pipe.

[0004] Therefore, we need a discharge structure and a twin-screw extruder to solve the problem of the discharge of the existing screw extruder, and can also achieve the effect of cleaning and preventing blockage of the discharge pipe of the screw extruder. Content of the Utility Model

[0005] The purpose of the utility model is to provide a discharge structure and a twin-screw extruder to solve the problem of the discharge of the existing screw extruder proposed in the above background technique, and can also achieve the effect of cleaning and preventing blockage of the discharge pipe of the screw extruder.

[0006] To achieve the above purpose, the utility model provides the following technical solution: a discharge structure, including a processing pipeline, a material bucket is arranged on the top of the processing pipeline, a spiral extrusion roller is arranged inside the processing pipeline, a discharge pipe is arranged on the side surface of the processing pipeline, the surface of a feeding auger is rotatably connected inside the discharge pipe, the inner surface of an inner ring of a bearing ring is fixedly connected to the surface of the feeding auger, the outer surface of the outer ring of the bearing ring is fixedly connected to the end of a support rod, the other end of the support rod is fixedly connected to the inner surface of the discharge pipe, the end of the feeding auger is fixedly connected to the surface of a gear disk, the teeth of the gear disk are meshed with the teeth of a driving gear ring, and the inner surface of the inner ring of the driving gear ring is fixedly connected to the surface of a rotating rod of the spiral extrusion roller.

[0007] Preferably, the end of the output pipe of the material bucket penetrates through the top surface of the processing pipeline, the top surface of the material bucket is fixedly connected to the base of a motor, the end of the power output shaft of the motor is fixedly connected to the top end of a stirring rod, the end of a stirring blade is fixedly connected to the surface of the stirring rod, the inner ring of an auger blade is fixedly connected to the outer wall surface of the stirring rod, and the surface of the auger blade is rotatably connected to the inside of the material bucket.

[0008] Preferably, the end of the rotating rod of the screw extrusion roller is fixedly connected to the end of the drive shaft. The surface of the drive shaft is rotatably connected to the inside of the housing. The inner surface of the transmission gear is fixedly connected to the surface of the drive shaft. The teeth of the transmission gear mesh with the teeth of the drive gear. The inner surface of the drive gear is fixedly connected to the outer surface of the transmission shaft. The surface of the transmission shaft is rotatably connected to the inside of the housing. The end of the transmission shaft is fixedly connected to the power output shaft end of the drive motor. The base of the drive motor is fixedly connected to the side surface of the housing. The bottom surface of the housing is fixedly connected to the top surface of the base of the processing pipeline.

[0009] Preferably, both the motor and the drive motor are powered by an external power supply.

[0010] Preferably, a feeding hopper is provided on the top surface of the material barrel.

[0011] Preferably, the centers of the toothed disc, the discharge pipe and the feeding auger are on the same horizontal line.

[0012] A twin-screw extruder includes a discharging structure.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows: By arranging a screw extrusion roller inside the processing pipeline, when the screw extrusion roller rotates inside the processing pipeline, the materials inside are squeezed and conveyed. By meshing the teeth of the driving gear ring with the teeth of the toothed disc, the feeding auger rotates inside the discharge pipe. Therefore, the materials inside the discharge pipe are conveyed and discharged by the feeding auger, so as to prevent the plastic masterbatch from condensing inside the discharge pipe and causing blockage inside. By starting the motor, the stirring rotating rod rotates inside the material barrel. The end of the stirring blade is fixedly connected to the surface of the stirring rotating rod. Therefore, the stirring blade stirs the plastic masterbatch inside the material barrel, so as to prevent the plastic masterbatch from stacking and caking under the influence of gravity inside the material barrel; It further solves the problem of discharging of the existing screw extruder, and can also achieve the effect of cleaning and preventing blockage of the discharge pipe of the screw extruder. Description of the Drawings

[0014] Figure 1 It is a three-dimensional schematic diagram of the overall structure of the present utility model:

[0015] Figure 2 It is a top view schematic diagram of the overall structure of the present utility model:

[0016] Figure 3 It is Figure 2 The sectional view of the structure at A-A in

[0017] Figure 4 It is the sectional view of the discharge pipe of the structure of the present utility model:

[0018] Figure 5 It is the connection schematic diagram of the transmission gear and the drive gear.

[0019] In the figure: processing pipeline 1, material bucket 2, motor 3, stirring rotating rod 4, stirring blades 5, auger blades 6, housing 7, transmission gear 8, driving gear 9, driving motor 10, driving shaft 11, transmission shaft 12, tooth disc 13, discharge pipe 14, driving gear ring 15, spiral extrusion roller 16, support rod 17, bearing ring 18, feeding auger 19. Specific embodiments

[0020] In order to clearly and completely describe the purpose, technical solution of the present utility model and make the advantages more clear, the following further details the embodiments of the present utility model with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are part of the embodiments of the present utility model, rather than all of the embodiments, and are only used to explain the embodiments of the present utility model, not to limit the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art without creative work belong to the scope of protection of the present utility model.

[0021] Embodiment 1

[0022] Please refer to Figures 1 - 5 , the present utility model provides a technical solution: a discharge structure, including a processing pipeline 1, a material bucket 2 is arranged at the top of the processing pipeline 1, a spiral extrusion roller 16 is arranged inside the processing pipeline 1, a discharge pipe 14 is arranged on the side surface of the processing pipeline 1, the surface of a feeding auger 19 is rotatably connected inside the discharge pipe 14, the inner surface of a bearing ring 18 is fixedly connected to the surface of the feeding auger 19, the outer surface of the bearing ring 18 is fixedly connected to the end of a support rod 17, the other end of the support rod 17 is fixedly connected to the inner surface of the discharge pipe 14, the end of the feeding auger 19 is fixedly connected to the surface of a tooth disc 13, the teeth of the tooth disc 13 are meshed with the teeth of a driving gear ring 15, and the inner surface of the driving gear ring 15 is fixedly connected to the surface of the rotating rod of the spiral extrusion roller 16. By arranging the spiral extrusion roller 16 inside the processing pipeline 1, when the spiral extrusion roller 16 rotates inside the processing pipeline 1, the materials inside it are squeezed and conveyed. By meshing the teeth of the driving gear ring 15 with the teeth of the tooth disc 13, the feeding auger 19 rotates inside the discharge pipe 14. Therefore, the materials inside the discharge pipe 14 are conveyed and discharged by the feeding auger 19, so as to prevent the plastic masterbatch from condensing inside the discharge pipe 14 and causing blockage inside it. By fixedly connecting the end of the support rod 17 to the inner surface of the discharge pipe 14 and the surface of the bearing ring 18, a stable support is provided for the rotation of the feeding auger 19 inside the discharge pipe 14.

[0023] Embodiment 2

[0024] Refer to the attached Figures 1 to 5, on the basis of the first embodiment, in order to evenly convey the plastic masterbatch inside the material barrel 2 to the inside of the processing pipeline 1 for extrusion, the end of the output pipe of the material barrel 2 penetrates through the top surface of the processing pipeline 1. The top surface of the material barrel 2 is fixedly connected to the base of the motor 3. The end of the power output shaft of the motor 3 is fixedly connected to the top end of the stirring rotating rod 4. The end of the stirring blade 5 is fixedly connected to the surface of the stirring rotating rod 4. The inner ring of the auger blade 6 is fixedly connected to the outer wall surface of the stirring rotating rod 4. The surface of the auger blade 6 is rotatably connected to the inside of the material barrel 2;

[0025] By starting the motor 3, the stirring rotating rod 4 rotates inside the material barrel 2. The end of the stirring blade 5 is fixedly connected to the surface of the stirring rotating rod 4. Therefore, the stirring blade 5 stirs the plastic masterbatch inside the material barrel 2 to prevent the plastic masterbatch from stacking and caking under the influence of gravity inside the material barrel 2. By fixedly connecting the inner ring of the auger blade 6 to the surface of the stirring rotating rod 4, the stirring rotating rod 4 drives the auger blade 6 to rotate inside the material barrel 2, so as to evenly convey the plastic masterbatch inside the material barrel 2 to the inside of the processing pipeline 1 for extrusion.

[0026] Embodiment Three

[0027] Refer to the appendix Figures 1 to 5 , on the basis of the second embodiment, in order to enable the spiral extrusion roller 16 to rotate inside the processing pipeline 1 to extrude and convey the plastic masterbatch inside it, the end of the rotating rod of the spiral extrusion roller 16 is fixedly connected to the end of the driving shaft 11. The surface of the driving shaft 11 is rotatably connected to the inside of the housing 7. The inner ring surface of the transmission gear 8 is fixedly connected to the surface of the driving shaft 11. The teeth of the transmission gear 8 mesh with the teeth of the driving gear 9. The outer surface of the transmission shaft 12 is fixedly connected to the inner ring surface of the driving gear 9. The surface of the transmission shaft 12 is rotatably connected to the inside of the housing 7. The end of the transmission shaft 12 is fixedly connected to the end of the power output shaft of the driving motor 10. The base of the driving motor 10 is fixedly connected to the side surface of the housing 7. The bottom surface of the housing 7 is fixedly connected to the top surface of the base of the processing pipeline 1;

[0028] By starting the driving motor 10, the transmission shaft 12 drives the driving gear 9 to rotate inside the housing 7. Therefore, the driving gear 9 meshes with the transmission gear 8 to rotate inside the housing 7. By fixedly connecting the end of the driving shaft 11 to the end of the spiral extrusion roller 16, the spiral extrusion roller 16 rotates inside the processing pipeline 1 to extrude and convey the plastic masterbatch inside it.

[0029] Embodiment Four

[0030] A twin-screw extruder includes a discharging structure.

[0031] In actual use, by arranging a spiral extrusion roller 16 inside the processing pipeline 1, when the spiral extrusion roller 16 rotates inside the processing pipeline 1, the materials inside it are extruded and conveyed. By meshing the teeth of the driving gear ring 15 with the teeth of the toothed disc 13, the feeding auger 19 rotates inside the discharge pipe 14. Therefore, the materials inside the discharge pipe 14 are conveyed and discharged by the feeding auger 19, so as to prevent the plastic masterbatch from condensing inside the discharge pipe 14 and causing blockage inside it. The end of the support rod 17 is fixedly connected to the inner surface of the discharge pipe 14 and the surface of the bearing ring 18. Therefore, it plays a stable supporting role when the feeding auger 19 rotates inside the discharge pipe 14. By starting the motor 3, the stirring rod 4 rotates inside the material barrel 2. The end of the stirring blade 5 is fixedly connected to the surface of the stirring rod 4. Therefore, the stirring blade 5 stirs the plastic masterbatch inside the material barrel 2, so as to prevent the plastic masterbatch from stacking and caking under the influence of gravity inside the material barrel 2. By fixedly connecting the inner ring of the auger blade 6 to the surface of the stirring rod 4, the stirring rod 4 drives the auger blade 6 to rotate inside the material barrel 2, so as to uniformly convey the plastic masterbatch inside the material barrel 2 to the inside of the processing pipeline 1 for extrusion. By starting the driving motor 10, the transmission shaft 12 drives the driving gear 9 to rotate inside the housing 7. Therefore, the driving gear 9 meshes with the transmission gear 8 to rotate inside the housing 7. By fixedly connecting the end of the driving shaft 11 to the end of the spiral extrusion roller 16, the spiral extrusion roller 16 rotates inside the processing pipeline 1 to extrude and convey the plastic masterbatch inside it.

[0032] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A material discharging structure, comprising a processing pipeline (1), a material bucket (2) being arranged on the top of the processing pipeline (1), characterized in that: A spiral extrusion roller (16) is arranged inside the processing pipe (1), and a discharge pipe (14) is arranged on the side surface of the processing pipe (1). The inside of the discharge pipe (14) is rotatably connected to the surface of a feeding auger (19), and the surface of the feeding auger (19) is fixedly connected to the inner ring surface of a bearing ring (18). The outer ring surface of the bearing ring (18) is fixedly connected to the end of a support rod (17), and the other end of the support rod (17) is fixedly connected to the inner surface of the discharge pipe (14). The end of the feeding auger (19) is fixedly connected to the surface of a toothed disc (13), and the teeth of the toothed disc (13) mesh with the teeth of a driving gear ring (15). The inner ring surface of the driving gear ring (15) is fixedly connected to the surface of a rotating rod of the spiral extrusion roller (16).

2. A discharging structure according to claim 1, characterized in that: The output pipe end of the material barrel (2) passes through the top surface of the processing pipeline (1), the top surface of the material barrel (2) is fixedly connected to the base of the motor (3), the end of the power output shaft of the motor (3) is fixedly connected to the top of the stirring rotating rod (4), the surface of the stirring rotating rod (4) is fixedly connected to the end of the stirring blade (5), the outer wall surface of the stirring rotating rod (4) is fixedly connected to the inner ring of the auger piece (6), and the surface of the auger piece (6) is rotatably connected to the inside of the material barrel (2).

3. A discharging structure according to claim 1, characterized in that: The end of the rotating rod of the spiral extrusion roller (16) is fixedly connected to the end of the driving shaft (11), the surface of the driving shaft (11) is rotationally connected to the inside of the housing (7), the surface of the driving shaft (11) is fixedly connected to the inner ring surface of the transmission gear (8), the teeth of the transmission gear (8) mesh with the teeth of the driving gear (9), the inner ring surface of the driving gear (9) is fixedly connected to the outer surface of the transmission shaft (12), the surface of the transmission shaft (12) is rotationally connected to the inside of the housing (7), the end of the transmission shaft (12) is fixedly connected to the end of the power output shaft of the driving motor (10), the base of the driving motor (10) is fixedly connected to the side surface of the housing (7), and the bottom surface of the housing (7) is fixedly connected to the top surface of the base of the processing pipeline (1).

4. A discharging structure according to claim 2, characterized in that: The motor (3) and the drive motor (10) are both powered by an external power source.

5. A discharging structure according to claim 1, characterized in that: The top surface of the barrel (2) is provided with a feeding hopper.

6. A discharging structure according to claim 1, characterized in that: The center points of the toothed disc (13), the discharge pipe (14) and the feeding auger (19) are arranged on the same horizontal line.

7. A twin-screw extruder, characterized in that: The invention comprises the discharging structure described in any one of claims 1 to 6.

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