Feeding device of screw extruder

Abstract

The utility model relates to the technical field of screw extruders, and discloses a feeding device of a screw extruder, which comprises a feeding pipeline and a feeding cylinder, one side of the feeding pipeline is fixedly connected with a motor plate, one side of the motor plate is fixedly provided with a first motor, the output end of the first motor is fixedly connected with a belt wheel, and the output end of the first motor is fixedly connected with a second motor. And the number of the belt wheels is two, one belt wheel is fixedly connected to the output end of the first motor, the other belt wheel is rotationally connected to the outer side of the motor plate, and the interiors of the two belt wheels are both in transmission connection with belts. Compared with the prior art, the stirring device has the following advantages and effects that the second gear drives the stock bin to rotate, the number of the stirring blades is three, and the three stirring blades are arranged on the inner wall of the stock bin in a circling mode, so that after materials make contact with the stirring blades, the materials can be conveyed into the extruder through rotation of the stirring blades; and material blockage can be prevented in the process.

Description

Technical Field

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

[0002] Screw extruder is a common extruder equipment, widely used in plastic processing industry. Screw extruder relies on the pressure and shear force generated by the rotation of the screw to mix and plasticize the materials, and then form them through the die of the die head. It has the characteristics of high output, good plasticization and low energy consumption.

[0003] In the prior art, Chinese patent publication number CN212764670U discloses a screw extruder including a feeding assembly, a bracket, and an extrusion mechanism. The extrusion mechanism includes a screw barrel. The feeding assembly includes a raw material box, a vacuum pump, a suction pipe, an exhaust pipe, a barrel, and a filter. The bracket is provided with a barrel, and the barrel is connected with the exhaust pipe and the feeding pipe respectively. The bottom of the barrel is connected with the screw barrel. The end of the suction pipe away from the barrel is located in the raw material box. The end of the exhaust pipe away from the barrel is connected with the vacuum pump. The end of the exhaust pipe connected with the barrel is provided with a filter. The filter includes an outer filter screen, an inner filter screen, and a filter cartridge. The two ends of the inner wall of the filter cartridge are provided with an outer filter screen and an inner filter screen respectively. The end of the filter cartridge provided with an inner filter screen is threadedly connected with the exhaust pipe. The screw extruder disclosed by the utility model is not easy to damage the vacuum pump during feeding, thereby extending the service life of the vacuum pump.

[0004] However, when feeding the existing screw extruder, since the feed port of the screw extruder is arranged just above the machine body, the staff is required to stand on a ladder to put the material into the feed port of the machine body during the feeding process, which not only reduces the feeding efficiency but also increases the workload of the staff. At the same time, during the feeding process, the material is prone to get blocked inside the feed port, so improvement is needed. Utility Model Content

[0005] The utility model aims to provide a feeding device for a screw extruder, which has the effect of convenient feeding.

[0006] The above technical objectives of the utility model are achieved through the following technical solutions: a feeding device for a screw extruder, comprising a feeding pipe and a feeding barrel, one side of the feeding pipe is fixedly connected to a motor plate, one side of the motor plate is fixedly installed with a first motor, the output end of the first motor is fixedly connected to a pulley, the number of the pulleys is two, one of the pulleys is fixedly connected to the output end of the first motor, and the other pulley is rotatably connected to the outside of the motor plate, the insides of the two pulleys are both transmission-connected with belts, the center of the other pulley is fixedly connected to a driving rod, the outside of the driving rod is fixedly connected to a spiral blade, the bottom of the feeding pipe is fixedly connected to a hopper, the bottom of the hopper is fixedly connected to a material net, the bottom of the material net is fixedly connected to a material pipe, the outside of the feeding barrel is fixedly installed with a second motor, the output end of the second motor is fixedly connected to a first gear, one side of the first gear is meshed with a second gear, the center of the second gear is fixedly connected to a silo, and the inner wall of the silo is fixedly connected with a stirring blade.

[0007] By adopting the above technical solution, the staff installs the feed barrel to the feed port of the extruder, installs the feeding pipe above the feed barrel, and then puts the material into the feeding pipe, starts the first motor, so that the first motor drives the pulley and the belt for transmission, the pulley drives the driving rod and the spiral blade to rotate, and the driving rod and the spiral blade both extend to the inside of the feeding pipe, and the material can be transported to the inside of the hopper and the material net through the rotation of the spiral blade, and the material pipe extends to the inside of the feed barrel, so that the material can be transported to the inside of the feed barrel over a long distance. After the material enters the inside of the feed barrel, the staff starts the second motor, so that the second motor drives the first gear to rotate, and the first gear and the second gear are meshed, so that the second gear drives the silo to rotate, the number of stirring blades is three, and the three stirring blades are hovering on the inner wall of the silo, so that after the material comes into contact with the stirring blades, the material can be transported to the inside of the extruder through the rotation of the stirring blades, and this process can prevent the material from being blocked.

[0008] The utility model is further configured as follows: the inner wall of the feed barrel is fixedly connected to a gear box, the first gear and the second gear extend to the interior of the gear box, and the second gear is rotatably connected to the interior of the gear box.

[0009] By adopting the above technical solution, the gear box wraps the first gear and the second gear to prevent the material from contacting the first gear and the second gear, thereby avoiding damage to the material.

[0010] The utility model is further configured as follows: a U-shaped ring is overlapped on the outside of the feeding pipe, and a first bolt is connected to the inner thread of the U-shaped ring.

[0011] By adopting the above technical solution, when fixing the feeding pipe, the staff puts the U-shaped ring on the bottom of the feeding pipe, and then threadably connects the first bolt to the ceiling of the workshop, thereby fixing the feeding pipe.

[0012] The utility model is further configured as follows: a Z-shaped plate is fixedly connected to the outer side of the motor plate, and a second bolt is threadedly connected to the inner side of the Z-shaped plate.

[0013] By adopting the above technical solution, the Z-shaped plate is fixedly connected to the motor plate, and the Z-shaped plate contacts the wall of the workshop, and then the second bolt is threadedly connected to the wall, thereby fixing one end of the feeding pipe.

[0014] The utility model is further configured as follows: a spring is fixedly connected to the inner wall of the U-shaped ring, and a cotton layer is fixedly connected to the top of the spring.

[0015] By adopting the above technical solution, the cotton layer contacts the bottom of the feeding pipe, and the spring is compressed, thereby providing a protective effect.

[0016] The utility model is further configured as follows: the length of the feeding pipe is 4.5 meters, and a feeding cavity is opened at one end of the feeding pipe.

[0017] By adopting the above technical solution, the feed cavity is arranged at one end of the feed pipe, and the material enters the interior of the feed pipe through the feed cavity.

[0018] The beneficial effects of the utility model are:

[0019] 1. The utility model, through the arrangement among the feeding pipe, the feeding barrel, the motor plate, the first motor, the pulley, the belt, the driving rod, the spiral blade, the hopper, the material net, the material pipe, the second motor, the first gear, the second gear, the silo and the stirring blade, the staff installs the feeding barrel to the feeding port of the extruder, installs the feeding pipe above the feeding barrel, then puts the material into the feeding pipe, starts the first motor, so that the first motor drives the pulley and the belt to transmit, the pulley drives the driving rod and the spiral blade to rotate, and the driving rod and the spiral blade both extend to the inside of the feeding pipe, and the rotation energy of the spiral blade is It can transport materials to the inside of the hopper and the material net, and the material pipe extends to the inside of the feed barrel, so that the material can be transported to the inside of the feed barrel over a long distance. After the material enters the inside of the feed barrel, the staff starts the second motor, so that the second motor drives the first gear to rotate, and the first gear and the second gear are meshed, so that the second gear drives the silo to rotate. There are three stirring blades, and the three stirring blades are hovering on the inner wall of the silo, so that after the material contacts the stirring blades, the material can be transported to the inside of the extruder through the rotation of the stirring blades, and the material can be prevented from being blocked in this process.

[0020] 2. The utility model, through the arrangement between the U-shaped ring, the first bolt, the Z-shaped plate, the second bolt, the spring and the cotton layer, the gear box wraps the first gear and the second gear to prevent the material from contacting the first gear and the second gear, thereby avoiding damage to the material. When fixing the feeding pipe, the staff puts the U-shaped ring on the bottom of the feeding pipe, and then threading the first bolt to the ceiling of the workshop, so as to fix the feeding pipe. The Z-shaped plate is fixedly connected to the motor plate, and the Z-shaped plate contacts the wall of the workshop. Then, the second bolt is threadedly connected to the wall, so as to fix one end of the feeding pipe. The cotton layer contacts the bottom of the feeding pipe, and the spring is compressed, so as to provide a protective effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0022] Figure 1 It is a schematic diagram of the structure of the utility model;

[0023] Figure 2 This is a schematic diagram of the internal structure of the feeding pipeline of the utility model;

[0024] Figure 3 This is a schematic diagram of the internal structure of the feed barrel of the utility model;

[0025] Figure 4 It is a schematic diagram of the internal structure of the U-shaped ring of the utility model.

[0026] In the figure, 1. feeding pipe; 2. feeding barrel; 3. motor plate; 4. first motor; 5. pulley; 6. belt; 7. driving rod; 8. spiral blade; 9. hopper; 10. material net; 11. material pipe; 12. second motor; 13. first gear; 14. second gear; 15. silo; 16. stirring blade; 17. gear box; 18. U-shaped ring; 19. first bolt; 20. Z-shaped plate; 21. second bolt; 22. spring; 23. cotton layer. DETAILED DESCRIPTION

[0027] The technical solution of the utility model will be described clearly and completely below in conjunction with specific embodiments. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of 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.

[0028] Reference Figure 1-4A feeding device for a screw extruder comprises a feeding pipe 1 and a feeding barrel 2. A motor plate 3 is fixedly connected to one side of the feeding pipe 1. A first motor 4 is fixedly installed on one side of the motor plate 3. A pulley 5 is fixedly connected to the output end of the first motor 4. There are two pulleys 5. One pulley 5 is fixedly connected to the output end of the first motor 4. The other pulley 5 is rotatably connected to the outside of the motor plate 3. Belts 6 are both connected to the inside of the two pulleys 5. A driving rod 7 is fixedly connected to the center of the other pulley 5. A spiral blade 8 is fixedly connected to the outside of the driving rod 7. A hopper 9 is fixedly connected to the bottom of the feeding pipe 1. A material net 10 is fixedly connected to the bottom of the hopper 9. A material pipe 11 is fixedly connected to the bottom of the material net 10. The outside of the feeding barrel 2 is fixedly installed with The second motor 12, the output end of the second motor 12 is fixedly connected with the first gear 13, one side of the first gear 13 is meshed with the second gear 14, the center of the second gear 14 is fixedly connected with the silo 15, the inner wall of the silo 15 is fixedly connected with the stirring blade 16, the staff installs the feed barrel 2 to the feed port of the extruder, installs the feeding pipe 1 above the feed barrel 2, and then puts the material into the feeding pipe 1, starts the first motor 4, so that the first motor 4 drives the pulley 5 and the belt 6 to transmit, the pulley 5 drives the driving rod 7 and the spiral blade 8 to rotate, and the driving rod 7 and the spiral blade 8 both extend to the inside of the feeding pipe 1, and the material can be transported to the inside of the hopper 9 and the material net 10 through the rotation of the spiral blade 8, and the feeding pipe 1 1 extends to the inside of the feed barrel 2, so that the material can be transported to the inside of the feed barrel 2 over a long distance. After the material enters the inside of the feed barrel 2, the staff starts the second motor 12, so that the second motor 12 drives the first gear 13 to rotate, and the first gear 13 and the second gear 14 are meshed, so that the second gear 14 drives the silo 15 to rotate. The number of stirring blades 16 is three, and the three stirring blades 16 hover on the inner wall of the silo 15, so that after the material contacts the stirring blades 16, the material can be transported to the inside of the extruder through the rotation of the stirring blades 16. In this process, the material can be prevented from being blocked. The inner wall of the feed barrel 2 is fixedly connected with a gear box 17. The first gear 13 and the second gear 14 extend To the inside of the gear box 17, and the second gear 14 is rotatably connected to the inside of the gear box 17, the gear box 17 wraps the first gear 13 and the second gear 14 to prevent the material from contacting the first gear 13 and the second gear 14, and avoids damage to the material. The outside of the feeding pipe 1 is overlapped with a U-shaped ring 18, and the internal thread of the U-shaped ring 18 is connected with a first bolt 19. When fixing the feeding pipe 1, the staff puts the U-shaped ring 18 on the bottom of the feeding pipe 1, and then threads the first bolt 19 to the ceiling of the workshop, so as to fix the feeding pipe 1. The outer side of the motor plate 3 is fixedly connected with a Z-shaped plate 20, and the internal thread of the Z-shaped plate 20 is connected with a second bolt 21. The Z-shaped plate 20 is fixedly connected to the motor plate 3.The Z-shaped plate 20 contacts the wall of the workshop, and then the second bolt 21 is threadedly connected to the wall, so that one end of the feeding pipe 1 can be fixed. The inner wall of the U-shaped ring 18 is fixedly connected with a spring 22, and the top of the spring 22 is fixedly connected with a cotton layer 23. The cotton layer 23 contacts the bottom of the feeding pipe 1, and the spring 22 is compressed, so as to provide a protective effect. The length of the feeding pipe 1 is 4.5 meters, and a feeding cavity is opened at one end of the feeding pipe 1. The feeding cavity is set at one end of the feeding pipe 1, and the material enters the inside of the feeding pipe 1 through the feeding cavity.

[0029] In the utility model, the staff installs the feed barrel 2 to the feed port of the extruder, installs the feeding pipe 1 above the feed barrel 2, and then puts the material into the feeding pipe 1, starts the first motor 4, so that the first motor 4 drives the pulley 5 and the belt 6 to transmit, the pulley 5 drives the driving rod 7 and the spiral blade 8 to rotate, and the driving rod 7 and the spiral blade 8 are extended to the inside of the feeding pipe 1, and the material can be transported to the inside of the hopper 9 and the material net 10 through the rotation of the spiral blade 8. The material pipe 11 extends to the inside of the feed barrel 2, and then the material can be transported to the inside of the feed barrel 2 over a long distance. After the material enters the inside of the feed barrel 2, the staff starts the second motor 12, so that the second motor 12 drives the first gear 13 to rotate, and the first gear 13 and the second gear 14 are meshed, so that the second gear 14 drives the silo 15 to rotate, and the number of the stirring blades 16 is three, and the three stirring blades 16 are respectively The blades 16 hover on the inner wall of the silo 15, so that after the material contacts the stirring blades 16, the material can be transported to the inside of the extruder through the rotation of the stirring blades 16. In this process, the material can be prevented from being blocked. The gear box 17 wraps the first gear 13 and the second gear 14 to prevent the material from contacting the first gear 13 and the second gear 14, thereby avoiding damage to the material. When fixing the feeding pipe 1, the staff puts the U-shaped ring 18 on the bottom of the feeding pipe 1, and then threads the first bolt 19 to the ceiling of the workshop, so as to fix the feeding pipe 1. The Z-shaped plate 20 is fixedly connected to the motor plate 3, and the Z-shaped plate 20 contacts the wall of the workshop. Then, the second bolt 21 is threaded to the wall, so as to fix one end of the feeding pipe 1. The cotton layer 23 contacts the bottom of the feeding pipe 1, and the spring 22 is compressed, so as to provide a protective effect.

[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A feeding device for a screw extruder, comprising a feeding pipe (1) and a feeding barrel (2), characterized in that: A motor plate (3) is fixedly connected to one side of the feeding pipe (1), a first motor (4) is fixedly installed on one side of the motor plate (3), a pulley (5) is fixedly connected to the output end of the first motor (4), the number of the pulleys (5) is two, one of the pulleys (5) is fixedly connected to the output end of the first motor (4), the other of the pulleys (5) is rotatably connected to the outside of the motor plate (3), the insides of the two pulleys (5) are both transmission-connected with belts (6), the center of the other of the pulleys (5) is fixedly connected to a driving rod (7), the outside of the driving rod (7) is fixedly connected to a screw The feeding pipe (1) is fixedly connected to a hopper (9) at the bottom, the hopper (9) is fixedly connected to a material net (10) at the bottom, the material net (10) is fixedly connected to a material pipe (11) at the bottom, a second motor (12) is fixedly installed on the outside of the feeding barrel (2), the output end of the second motor (12) is fixedly connected to a first gear (13), one side of the first gear (13) is meshed with a second gear (14), the center of the second gear (14) is fixedly connected to a silo (15), and the inner wall of the silo (15) is fixedly connected to a stirring blade (16).

2. A feeding device for a screw extruder according to claim 1, characterized in that: The inner wall of the feed barrel (2) is fixedly connected to a gear box (17); the first gear (13) and the second gear (14) extend into the interior of the gear box (17); and the second gear (14) is rotatably connected to the interior of the gear box (17).

3. A feeding device for a screw extruder according to claim 1, characterized in that: The outside of the feeding pipe (1) is overlapped with a U-shaped ring (18), and the inside of the U-shaped ring (18) is threadedly connected with a first bolt (19).

4. A feeding device for a screw extruder according to claim 1, characterized in that: A Z-shaped plate (20) is fixedly connected to the outer side of the motor plate (3), and a second bolt (21) is threadedly connected to the inner side of the Z-shaped plate (20).

5. A feeding device for a screw extruder according to claim 3, characterized in that: The inner wall of the U-shaped ring (18) is fixedly connected to a spring (22), and the top end of the spring (22) is fixedly connected to a cotton layer (23).

6. A feeding device for a screw extruder according to claim 1, characterized in that: The length of the feeding pipe (1) is 4.5 meters, and a feeding cavity is provided at one end of the feeding pipe (1).

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