A gear type extrusion device for granulator

Abstract

The utility model relates to the technical field of granulators, more specifically, a gear-type extrusion device for granulators, including a frame, a ring die, a lower bearing, an upper bearing, an extrusion wheel, a turntable, a main shaft, and an extrusion shaft. The frame is connected to a fixed ring die, the ring die is hollow inside, a main shaft is arranged in the center of the ring die, the main shaft is connected to a turntable, the outer side of the turntable is connected to the extrusion shaft, the extrusion shaft is connected to the extrusion wheel and the upper bearing upward, and a lower bearing is arranged below the extrusion shaft. The utility model controls the extrusion shape by replacing different ring dies, can meet the needs of different products, has high production efficiency, and a wide range of applications; is provided with a bearing seat with good sealing performance, has good dustproof and waterproof effects, reduces the pollution of bearings and lubricants, improves the life and stability of bearings, reduces noise and vibration, and reduces interference with the surrounding environment; is provided with a filter outside the ring die, can screen particles first, and ensure the quality of product output.

Description

[Technical field]

[0001] The utility model relates to the technical field of granulators, and more specifically, to a gear type extrusion device for a granulator. [Background technology]

[0002] Extrusion granulator is a dry granulation process that uses pressure to agglomerate solid materials. This is done by squeezing the material through two counter-rotating rollers driven by an eccentric sleeve or a hydraulic system. When the solid material is squeezed, the air between the powder particles is expelled to rearrange the particles and eliminate the gaps between the materials.

[0003] An existing ring die granulator, publication number: CN 113908768 A, comprises a frame and a forming roller, the forming roller is densely covered with forming holes that penetrate inside and outside, a roller main shaft driven by a roller driving device is installed in the forming roller, a roller group that cooperates with the forming roller to form ceramsite is installed on the roller main shaft, a scraper that can fit the outer wall of the forming roller is connected to the frame, the forming roller and the roller main shaft rotate in opposite directions, an annular feed port is opened on the front side of the forming roller, a feeding cylinder located on one side of the forming roller is installed on the frame, a feeding port is provided on the feeding cylinder, a feeding screw is installed in the feeding cylinder, the main shaft of the feeding screw is coaxially arranged with the roller main shaft and connected by a coupling, a conical guide cylinder is installed between the discharge end of the feeding cylinder and the feed port, the guide cylinder is fixedly connected to the outer wall of the forming roller, and the guide cylinder and the feeding cylinder are rotatably sealed and connected. The extrusion friction between the forming drum and the pressure roller of the ring die granulator will cause more energy to be required to maintain the operation of the pressure roller, which increases energy consumption. At the same time, long-term friction may cause increased wear and shorten the service life. In addition, the ring die granulator cannot screen the quality of the final product, which reduces production efficiency. [Contents of the utility model]

[0004] In order to overcome the above-mentioned defects of the prior art, the purpose of the utility model is to provide a gear-type extrusion device for a granulator, which reduces the heat generated during operation through the meshing extrusion of the gear-type extrusion roller and the ring die, can screen the particles and speed up the processing speed.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a gear-type extrusion device for a granulator, comprising a frame, a ring die, a lower bearing, an upper bearing, an extrusion wheel, a turntable, a main shaft, and an extrusion shaft, wherein the frame is connected to and fixed to the ring die, the ring die is hollow inside, a main shaft is arranged in the center of the ring die, the main shaft is connected to the turntable, the outer side of the turntable is connected to the extrusion shaft, the extrusion shaft is upwardly connected to the extrusion wheel and the upper bearing, and a lower bearing is arranged below the extrusion shaft.

[0006] Preferably, the ring die is fixed to the flange on the top of the frame by bolts, and the ring die can be disassembled and replaced.

[0007] Preferably, the ring die is of a cylindrical structure, comprising a ring die body, inner teeth, outer membrane holes, and inner membrane holes. A plurality of inner teeth are arranged inside the ring die body, a plurality of inner membrane holes are arranged along the circumference of the inner teeth and the ring die body, and outer membrane holes are arranged outside the inner membrane holes.

[0008] Preferably, a detachable filter screen is provided outside the outer membrane hole.

[0009] Preferably, the extrusion wheel comprises an extrusion shaft hole, external teeth, and a fixing hole. The extrusion wheel is connected to the extrusion shaft through the extrusion shaft hole. The extrusion wheel is provided with a plurality of external teeth, and a plurality of fixing holes are provided on the wheel surface of the extrusion wheel.

[0010] Preferably, the outer teeth mesh with the inner teeth in a matching manner.

[0011] Preferably, the upper bearing and the lower bearing are provided with bearing covers with sealing properties on the outside, and the upper bearing and the lower bearing are provided with a plurality of oil seals on the inside.

[0012] Preferably, extrusion wheels are provided inside the ring die, and the number of the extrusion wheels is greater than two.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. The utility model is a gear-type extrusion device for a granulator. By replacing different ring dies, the extrusion shape can be controlled, so as to meet the needs of different products. At the same time, it has higher production efficiency and a wider range of applications.

[0015] 2. The utility model discloses a gear type extrusion device for a granulator, which is provided with a bearing seat with good sealing performance, has good dustproof and waterproof effects, reduces the pollution of bearings and lubricants, improves the life and stability of bearings, reduces noise and vibration, and reduces interference with the surrounding environment.

[0016] 3. The utility model provides a gear type extrusion device for a granulator with a filter screen outside the ring die, which can first screen the particles to ensure the quality of the output product.

Brief Description of the Drawings

[0017] Figure 1 This is a schematic diagram of the structure of a gear-type extrusion device for a granulator of the utility model;

[0018] Figure 2 This is a top view of a ring die of a gear-type extrusion device for a granulator of the utility model;

[0019] Figure 3 It is a side view of a ring die of a gear-type extrusion device for a granulator of the utility model;

[0020] Figure 4This is a cross-sectional view of a ring die of a gear-type extrusion device for a granulator of the utility model;

[0021] Figure 5 This is a schematic diagram of the structure of an extrusion wheel of a gear-type extrusion device for a granulator of the utility model;

[0022] In the figure: 1-frame, 2-ring die, 21-ring die body, 22-inner teeth, 23-outer film hole, 24-inner film hole, 3-lower bearing, 4-upper bearing, 5-extrusion wheel, 51-extrusion shaft hole, 52-outer teeth, 53-fixing hole, 6-turntable, 7-main shaft. [Specific implementation method]

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figure 1 In the embodiment of the utility model, a gear extrusion device for a granulator includes a frame 1, a ring die 2, a lower bearing 3, an upper bearing 4, an extrusion wheel 5, a turntable 6, a main shaft 7, and an extrusion shaft 9. The top of the frame 1 is connected to a fixing flange 8 by bolts to fix the ring die 2, and the ring die 2 can be disassembled and replaced. The inside of the ring die 2 is hollow, and a main shaft 7 is provided in the center of the ring die 2. The main shaft 7 is connected to the turntable 6, and the outside of the turntable 6 is connected to the extrusion shaft 9. The extrusion shaft 9 is upwardly connected to the extrusion wheel 5 and the upper bearing 4. A lower bearing 3 is provided below the extrusion shaft 9. The upper bearing 3 and the lower bearing 4 are provided with a sealing bearing cover on the outside, and a plurality of oil seals are provided inside the upper bearing 3 and the lower bearing 4. An extrusion wheel 5 is provided inside the ring die 2, and the number of the extrusion wheels 5 is greater than two.

[0025] See also Figure 2-4 In an embodiment of the utility model, a gear-type extrusion device for a granulator is provided. The ring die 2 is a cylindrical structure. The ring die 2 includes a ring die body 21, inner teeth 22, outer film holes 23, and inner film holes 24. A plurality of inner teeth 22 are arranged inside the ring die body 21. A plurality of inner film holes 24 are arranged along the circumference of the inner teeth 22 and the ring die body 21. An outer film hole 23 is arranged outside the inner film hole 24. A detachable filter screen is arranged outside the outer film hole 23.

[0026] See also Figure 5In an embodiment of the utility model, a gear-type extrusion device for a granulator, 5. The extrusion wheel 5 includes an extrusion shaft hole 51, external teeth 52, and a fixing hole 53. The extrusion wheel 5 is connected to the extrusion shaft 9 through the extrusion shaft hole 51. The extrusion wheel 5 is provided with a plurality of external teeth 52. The extrusion wheel 5 is provided with a plurality of fixing holes 53 on its wheel surface. The external teeth 52 are meshed with the internal teeth 22.

[0027] Working principle:

[0028] The utility model discloses a gear type extrusion device for a granulator. Materials are poured into the extrusion device. The main shaft 7 rotates to drive the extrusion wheel 5 on the extrusion shaft 9 to rotate. The extrusion wheel 5 rotates inside the ring die 2, so that the outer teeth 52 outside the extrusion wheel 5 mesh with the inner teeth 22. The materials are extruded between the extrusion wheel 5 and the ring die 2, and are filtered by the filter screen arranged in the outer film holes 23 after being formed through the inner film holes 24. The finished particles are collected by the discharge device. The friction of the inner wall is reduced by the meshing gears, and the particles of limited size are screened out, thereby improving the production efficiency and product quality.

[0029] The above embodiments are intended to illustrate the present invention, not to limit the present invention. Any solution that is a simple transformation of the present invention falls within the protection scope of the present invention.

Claims

1. A gear extrusion device for a granulator, characterized in that: The invention comprises a frame (1), a ring die (2), a lower bearing (3), an upper bearing (4), an extrusion wheel (5), a turntable (6), a main shaft (7), and an extrusion shaft (9). The frame (1) is connected to and fixed to the ring die (2). The ring die (2) is hollow inside. A main shaft (7) is arranged at the center of the ring die (2). The main shaft (7) is connected to the turntable (6). The outer side of the turntable (6) is connected to the extrusion shaft (9). The extrusion shaft (9) is connected to the extrusion wheel (5) and the upper bearing (4) upward. A lower bearing (3) is arranged below the extrusion shaft (9).

2. A gear extruder for a granulator as claimed in claim 1, characterized in that: The top of the frame (1) is connected to a fixing flange (8) via bolts to fix the ring die (2), and the ring die (2) can be disassembled and replaced.

3. A gear extruder for a granulator as claimed in claim 1, characterized in that: The ring die (2) is of a cylindrical structure, comprising a ring die body (21), inner teeth (22), outer film holes (23), and inner film holes (24); a plurality of inner teeth (22) are arranged inside the ring die body (21); a plurality of inner film holes (24) are arranged along the circumference of the inner teeth (22) and the ring die body (21); and outer film holes (23) are arranged outside the inner film holes (24).

4. A gear type extruder for a granulator as claimed in claim 3, characterized in that: The outer membrane hole (23) is provided with a detachable filter screen.

5. A gear type extruder for a granulator as claimed in claim 1, characterized in that: The extrusion wheel (5) comprises an extrusion shaft hole (51), external teeth (52), and a fixing hole (53); the extrusion wheel (5) is connected to the extrusion shaft (9) via the extrusion shaft hole (51); a plurality of external teeth (52) are arranged on the outside of the extrusion wheel (5); and a plurality of fixing holes (53) are arranged on the wheel surface of the extrusion wheel (5).

6. A gear type extruder for a granulator as claimed in claim 5, characterized in that: The outer teeth (52) are meshed and matched with the inner teeth (22).

7. A gear extruder for a granulator as claimed in claim 1, characterized in that: The upper bearing (4) and the lower bearing (3) are provided with bearing covers with sealing properties on the outside, and a plurality of oil seals are provided on the inside of the upper bearing (4) and the lower bearing (3).

8. A gear type extruder for a granulator as claimed in claim 1, characterized in that: The ring die (2) is provided with extrusion wheels (5) inside, and the number of the extrusion wheels (5) is greater than two.

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