Screw feeding device

Abstract

The utility model relates to the technical field of screw feeding, in particular to a screw feeding device which comprises a base, the top of the base is fixedly connected with a first motor, one side of the first motor is fixedly connected with a transmission case, the top of the transmission case is fixedly connected with a second motor, one side of the second motor is provided with a feeding mechanism, and the feeding mechanism is provided with a feeding mechanism. The bottom of the feeding mechanism is fixedly connected with a connecting part, one side of the connecting part is fixedly connected with the transmission box, the other side of the connecting part is fixedly connected with a feeding mechanism, the bottom of the connecting part is fixedly connected with a dust remover, and the side, away from the connecting part, of the dust remover is fixedly connected with a vacuum pump; by arranging the filter screen plate, the dust remover and the vacuum pump, fine materials and dust are filtered by the filter screen plate, then continue to fall and enter the dust remover to be removed, and the vacuum pump can suck air in the connecting part, so that negative pressure is formed in the connecting part, the falling speed of the materials can be increased, and the conveying speed of the materials can be increased; by arranging the upper heating piece and the lower heating piece, materials in the square machine barrel can be heated, the humidity of the materials is reduced, and therefore the final humidity of the materials meets the production requirement.

Description

Technical Field

[0001] The utility model relates to the technical field of screw feeding, in particular to a screw feeding device. Background Art

[0002] A screw feeder is a mechanical device commonly used for material conveying. Its core component is the screw. The screw's rotation enables the material to be transported from one location to another. The screw's rotation propels the material forward, where it enters the screw's spiral grooves along the conveying direction and is then propelled forward along the spiral line. As the screw continues to rotate, the material is continuously squeezed and conveyed to the desired location.

[0003] Screw compressors are widely used in a variety of industries, including the chemical, food, and pharmaceutical industries, due to their simple structure, excellent sealing, and high conveying capacity. For example, in the chemical industry, screw compressors are primarily used to convey various powdered, granular, flaky, or fibrous materials, such as plastics, rubber, and asphalt. In the food industry, they are often used to convey powders, granular materials, and liquids, such as powdered sugar, starch, and milk powder.

[0004] In general, the screw feeder is an efficient and reliable material conveying equipment with a wide range of applications and flexibility. It can be selected and adjusted according to different material characteristics and conveying requirements.

[0005] At present, although the common screw feeding devices on the market run relatively smoothly, the material conveying speed is relatively general. Moreover, when the screw feeds small particle materials, the conveyed materials often contain a large amount of materials that are too small to be used in production. This not only easily leads to low output of finished products, but also contains a large amount of dust in the finished products, affecting the environment. In addition, during the processing, there are certain requirements for the humidity of some materials, but the humidity of some materials is too high to be processed directly. This requires drying the materials, but the existing devices are unable to heat and dry the materials, affecting the efficiency and quality of subsequent processing of the materials.

[0006] Therefore, the present application provides a screw feeding device to overcome the defects of the prior art. Utility Model Content

[0007] The purpose of the utility model is to solve the problems that the existing material conveying speed is relatively general, the small particle materials fed by the screw often contain a large amount of materials that are too small to be used for production, which not only easily leads to low output of finished products, but also contains a large amount of dust in the finished products, affecting the environment, and the existing device cannot heat and dry the materials, affecting the efficiency and quality of subsequent processing of the materials.

[0008] The technical solution of the present utility model provides a screw feeding device, comprising a base, the top of the base is fixedly connected to a first motor, one side of the first motor is fixedly connected to a transmission box, the top of the transmission box is fixedly connected to a second motor, one side of the second motor is provided with a feeding mechanism, the bottom of the feeding mechanism is fixedly connected to a connecting part, one side of the connecting part is fixedly connected to the transmission box, and the other side is fixedly connected to the feeding mechanism, the bottom of the connecting part is fixedly connected to a dust collector, and the side of the dust collector away from the connecting part is fixedly connected to a vacuum pump.

[0009] As a preferred technical solution, the feeding mechanism includes a feeding bin, a feeding part is provided below the feeding bin, the feeding part is used to transport the material in the feeding bin to the connecting part, a discharge barrel is fixedly connected below the feeding part, and the bottom of the discharge barrel is fixedly connected to the top of the connecting part; the second motor is connected to the feeding part, and transports the material in the feeding bin to the discharge barrel, and then makes the material fall into the connecting part.

[0010] As a preferred technical solution, the connecting part includes a connecting box, two spline sleeves are provided in the connecting box, the two spline sleeves are connected to the output shaft of the first motor through a transmission box, one side of the connecting box is fixedly connected to the transmission box, and the other side is fixedly connected to a feed box, the top of the feed box is fixedly connected to the discharge barrel, a feed port for feeding is provided on the top of the feed box, a filter screen is fixedly connected in the feed box, an air intake is provided at the bottom of the filter screen, and the air intake is fixedly connected to the dust collector through a pipe; finer materials and dust continue to fall after being filtered by the filter screen and enter the dust collector for removal, the vacuum pump can absorb the air in the connecting part, thereby forming a negative pressure in the connecting part, which can accelerate the falling speed of the material and accelerate the material conveying speed.

[0011] As a preferred technical solution, the feeding mechanism includes a square barrel connected by several bolts, and two screws are provided in the square barrel. The two screws are fixedly connected to two spline sleeves respectively, and an upper heating plate and a lower heating plate are fixedly connected to the outer wall of each square barrel. The upper heating plate and the lower heating plate are used to heat the other barrel and heat and dry the material in the other barrel. For materials with humidity higher than the requirement, the upper heating plate and the lower heating plate are started to heat the material in the other barrel, so that the final humidity of the material meets the production requirements.

[0012] The beneficial effects of the screw feeding device provided by the utility model are:

[0013] The utility model is provided with a filter screen, a dust collector and a vacuum pump. The relatively fine materials and dust are filtered by the filter screen and continue to fall, enter the dust collector and are removed. The vacuum pump can absorb the air in the connection part, thereby forming a negative pressure in the connection part, which can accelerate the falling speed of the materials and accelerate the material conveying speed.

[0014] By setting the upper heating plate and the lower heating plate, the material in the barrel can be heated to reduce the humidity of the material, so that the final humidity of the material meets the production requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A perspective view of the first embodiment of the present invention;

[0016] Figure 2 This is a front view of the first embodiment of the present utility model;

[0017] Figure 3 A top view of the first embodiment of the present invention;

[0018] Figure 4 This is a cross-sectional view of the feeding mechanism of Example 1 of the present utility model;

[0019] Figure 5 This is a schematic diagram of a twin-screw extruder according to an embodiment of the present invention.

[0020] Among them, 1. Base; 2. First motor; 3. Transmission box; 4. Second motor; 5. Feed mechanism; 51. Feed bin; 52. Feeding part; 53. Discharging barrel; 6. Connecting part; 61. Connecting box; 62. Feed box; 63. Spline sleeve; 64. Feed port; 65. Filter screen; 66. Intake port; 7. Feeding mechanism; 71. Square barrel; 72. Screw; 73. Upper heating plate; 74. Lower heating plate; 8. Dust collector; 9. Vacuum pump. DETAILED DESCRIPTION

[0021] In order to make the technical means, technical features, purposes and technical effects achieved by the present invention easier to understand, the present invention is further described below with reference to specific illustrations; it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments; based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work should fall within the scope of protection of the present invention.

[0022] Example 1

[0023] As attached Figure 1 To the attached Figure 5As shown: A screw feeding device includes a base 1, a first motor 2 is fixedly connected to the top of the base 1, a transmission box 3 is fixedly connected to one side of the first motor 2, a second motor 4 is fixedly connected to the top of the transmission box 3, a feeding mechanism 5 is provided on one side of the second motor 4, a connecting portion 6 is fixedly connected to the bottom of the feeding mechanism 5, and under the drive of the second motor 4, the material in the feeding mechanism 5 can fall into the connecting portion 6 in an orderly manner for further processing, one side of the connecting portion 6 is fixedly connected to the transmission box 3, and the other side is fixedly connected to a feeding mechanism 7, the feeding mechanism 7 can transport the material and heat the material, so that the humidity is higher than the requirement The material can be dried in the feeding mechanism 7 so that its final humidity meets the production requirements. The bottom of the connecting part 6 is fixedly connected to a dust collector 8 through a pipeline, and the side of the dust collector 8 away from the connecting part 6 is fixedly connected to a vacuum pump 9 through a pipeline; the connecting part 6 can filter out impurities that are too small and separate them from the air in the dust collector 8, thereby reducing the amount of too small materials in the material, improving the quality of the finished product, reducing the dust content in the finished product, and avoiding environmental pollution. Under the action of the vacuum pump 9, the pressure in the connecting part 6 is relatively low, causing the material to be subjected to downward suction, causing the material to accelerate and fall into the connecting part 6, and then enter the feeding mechanism 7 for further processing.

[0024] As attached Figure 1 To the attached Figure 3 As shown: the feeding mechanism 5 includes a feeding bin 51, and a feeding part 52 is provided below the feeding bin 51, and the feeding part 52 is used to transport the material in the feeding bin 51 to the connecting part 6. The feeding part 52 is composed of an outer shell and a horizontally arranged cored auger, and one end of the cored auger is transmission-connected to the second motor 4, and a discharge barrel 53 is fixedly connected below the feeding part 52, and the bottom of the discharge barrel 53 is fixedly connected to the top of the connecting part 6. The second motor 4 can drive the cored auger to rotate, thereby transporting the material from the feeding bin 51 to the discharge barrel 53 and then falling into the connecting part 6. The reason why this device uses a cored auger to transfer materials is that when granular materials are piled together, due to the interaction force between the particles, it is easy for the materials to pile up together and cannot fall. The auger can drive the material to move well through rotation, avoid material accumulation, and allow the material to fall evenly.

[0025] As attached Figure 1 To the attached Figure 5As shown: the connecting portion 6 includes a connecting box 61, two spline sleeves 63 are provided in the connecting box 61, and the two spline sleeves 63 are connected to the output shaft of the first motor 2 through the transmission box 3. One side of the connecting box 61 is fixedly connected to the transmission box 3, and the other side is fixedly connected to the feed box 62. The top of the feed box 62 is fixedly connected to the bottom of the discharge barrel 53. A feed port 64 for feeding is provided on the top of the feed box 62. A filter screen plate 65 is fixedly connected to the feed box 62. After the material falls into the feed box 62, the overly fine material and dust continue to fall through the filter holes in the filter screen plate 65, while the larger material remains in the filter screen. On the plate 65, it continues to move to the designated position with the screw 72 for further processing, reducing dust and debris in the finished product, improving the quality of the finished product, and avoiding affecting the output of the finished product. The filter plate 65, the bottom of the filter plate 65 is provided with an air intake 66, the air intake 66 is fixedly connected to the dust collector 8 through a pipeline, and the material and dust falling from the filter plate 65 enter the dust collector 8 through the air intake 66. The dust collector 8 can separate the material and dust from the air, and the cleaned air enters the vacuum pump 9. The vacuum pump 9 can absorb the air in the connecting part 6, thereby forming a negative pressure in the connecting part 6, which can accelerate the falling speed of the material.

[0026] As attached Figure 1 To the attached Figure 5 As shown: the feeding mechanism 7 includes several square barrels 71 connected by bolts, and two screws 72 are horizontally arranged in the square barrel 71. The two screws 72 are fixedly connected to the two spline sleeves 63 respectively. The first motor 2 can drive the two screws 72 to rotate through the transmission box 3 and the two spline sleeves 63, thereby driving the material in the feed box 62 to move. An upper heating plate 73 and a lower heating plate 74 are fixedly connected to the outer wall of each square barrel 71. The upper heating plate 73 and the lower heating plate 74 are roughly "L"-shaped and are fixedly connected by bolts. The upper heating plate 73 and the lower heating plate 74 are used to heat the other barrel 71 and heat and dry the material in the other barrel 71, so that the material with a humidity higher than the requirement can be dried in the feeding mechanism 7, so that its final humidity meets the production requirements.

[0027] Working method: put the material into the feed bin 51, start the second motor 4 to drive the feeding part 52 to rotate, and transport the material from the feed bin 51 to the discharge barrel 53, and then fall into the feed box 62. The material and dust that are too fine continue to fall through the filter holes in the filter plate 65, enter the dust collector 8 through the air intake 66 and are separated, while the larger material remains on the filter plate 65, start the first motor 2, and drive the screw 72 to rotate through the transmission box 3 and the spline sleeve 63, and the screw 72 drives the material to continue to move. For materials with humidity higher than the requirement, start the upper heating plate 73 and the lower heating plate 74 to heat the material in the other barrel 71, so that the final humidity of the material meets the production requirements.

[0028] The above description is only a preferred embodiment of the present invention and is not intended to limit the scope of implementation of the present invention. That is, all equivalent changes and modifications made according to the content of the patent application scope of the present invention should fall within the technical scope of the present invention.

Claims

1. A screw feeding device, comprising a base (1), characterized in that: The top of the base (1) is fixedly connected to a first motor (2), one side of the first motor (2) is fixedly connected to a transmission box (3), the top of the transmission box (3) is fixedly connected to a second motor (4), one side of the second motor (4) is provided with a feeding mechanism (5), the bottom of the feeding mechanism (5) is fixedly connected to a connecting portion (6), one side of the connecting portion (6) is fixedly connected to the transmission box (3), and the other side is fixedly connected to a feeding mechanism (7), the bottom of the connecting portion (6) is fixedly connected to a dust collector (8), and the side of the dust collector (8) away from the connecting portion (6) is fixedly connected to a vacuum pump (9).

2. A screw feeding device according to claim 1, characterized in that: The feeding mechanism (5) comprises a feeding bin (51), a feeding portion (52) is provided below the feeding bin (51), and the feeding portion (52) is used to transport the material in the feeding bin (51) to the connecting portion (6). A discharge barrel (53) is fixedly connected below the feeding portion (52), and the bottom of the discharge barrel (53) is fixedly connected to the top of the connecting portion (6).

3. A screw feeding device according to claim 2, characterized in that: The connecting portion (6) includes a connecting box (61), two spline sleeves (63) are provided in the connecting box (61), and the two spline sleeves (63) are connected to the output shaft of the first motor (2) through the transmission box (3). One side of the connecting box (61) is fixedly connected to the transmission box (3), and the other side is fixedly connected to a feed box (62). The top of the feed box (62) is fixedly connected to the discharge barrel (53). The top of the feed box (62) is provided with a feed port (64) for feeding. A filter screen (65) is fixedly connected to the feed box (62), and an air intake port (66) is provided at the bottom of the filter screen (65). The air intake port (66) is fixedly connected to the dust collector (8) through a pipeline.

4. A screw feeding device according to claim 3, characterized in that: The feeding mechanism (7) comprises a plurality of square barrels (71) connected by bolts. Two screws (72) are provided in the square barrel (71). The two screws (72) are fixedly connected to two spline sleeves (63) respectively. An upper heating plate (73) and a lower heating plate (74) are fixedly connected to the outer wall of each square barrel (71). The upper heating plate (73) and the lower heating plate (74) are used to heat the other barrel (71) and heat and dry the material in the other barrel (71).

Images