Feeding device of plastic extruder

Abstract

The utility model discloses a feeding device of a plastic extruder, which comprises a feeding pipe, the top of the feeding pipe is communicated with a feeding hopper, the bottom of the feeding pipe is communicated with a discharging hopper, and a tray is fixedly arranged above the inner wall of the feeding pipe. Plastic particles can fall into the inner side of the material falling groove through the fan-shaped material guiding plate after entering the feeding pipe, meanwhile, the motor is started to drive the material pushing disc to rotate, the material pushing disc rotates to drive the plastic particles on the inner side of the material falling groove to move, when the plastic particles move to the material falling opening, the plastic particles can fall on the top of the sieve plate through the material falling opening, and therefore the quantitative feeding effect is achieved. And a rotating rod rotates to drive a sieve plate to rotate, the sieve plate rotates, and the sieve plate vibrates up and down through contact of a top block and a triangular block, so that the effect of dispersing the plastic particles adhered together is achieved, and the situation that a feeding pipe is blocked is avoided.

Description

Technical Field

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

[0002] Extruder is a type of plastic machinery, which originated in the 18th century. According to the direction of the material flow in the die and the angle between the center line of the screw, the die head can be divided into right-angle die head and bevel die head. The screw extruder relies on the pressure and shear force generated by the rotation of the screw to fully plasticize and evenly mix the material and form it through the die.

[0003] When the plastic extruder in the prior art is in use, plastic particles are added into the extruder through a hopper. However, the hopper structure of the extruder is simple in design. If too many plastic particles are added at one time during the feeding process, the feed hopper is easily blocked due to the adhesion of the plastic particles. In addition, the existing hopper cannot evenly sprinkle the plastic particles, resulting in the inability to quickly and evenly heat the plastic particles. Therefore, it is necessary to design a feeding device for the plastic extruder to solve the above problems. Utility Model Content

[0004] The purpose of the utility model is to provide a feeding device for a plastic extruder to solve the problems raised by the above background technology.

[0005] To achieve the above object, the utility model provides the following technical solutions: a feeding device for a plastic extruder, comprising a feeding pipe, the top of the feeding pipe is connected to a feeding hopper, the bottom of the feeding pipe is connected to a discharging hopper, a tray is fixedly installed above the inner wall of the feeding pipe, a fan-shaped material guide plate is fixedly installed on the inner wall of the feeding pipe and located above the tray, and a material drop opening is opened at the rear side of the top of the tray;

[0006] A U-shaped plate is fixedly installed on the surface of the feed hopper, a motor is fixedly installed on the top of the U-shaped plate, a rotating rod is fixedly installed on the output shaft of the motor through a coupling, the bottom end of the rotating rod extends to the inside of the feed pipe, a push plate is fixedly installed on the surface of the rotating rod and located between the tray and the fan-shaped guide plate, and a blanking trough for use with the blanking port is opened on the front side of the top of the pusher plate.

[0007] Preferably, a square rod is fixedly mounted on the bottom end of the rotating rod, and a screen plate is slidably connected to the surface of the square rod.

[0008] Preferably, a top block is fixedly mounted on the bottom of the sieve plate, and a plurality of top blocks are provided.

[0009] Preferably, triangular blocks used in conjunction with the top block are fixedly mounted on the front and rear portions of the inner wall of the feed pipe.

[0010] Preferably, a conical disk is fixedly mounted on the bottom end of the square rod.

[0011] Preferably, a partition is fixedly mounted on the top of the conical disk, and a plurality of partitions are arranged in a ring shape.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. The feeding device of the plastic extruder starts the motor and pours the plastic particles into the feed pipe through the feed hopper. After entering the feed pipe, the plastic particles can fall into the inner side of the blanking trough through the fan-shaped guide plate. At the same time, the motor starts to drive the push plate to rotate. The rotation of the push plate drives the plastic particles inside the blanking trough to move. When the plastic particles move to the blanking port, they can fall on the top of the screen plate through the blanking port, thereby achieving the effect of quantitative feeding, and the rotating rod rotates to drive the screen plate to rotate. The rotation of the screen plate contacts the triangular block through the top block to make the screen plate vibrate up and down, thereby achieving the effect of dispersing the plastic particles that are stuck together, avoiding the blockage of the feed pipe.

[0014] 2. The feeding device of the plastic extruder is provided with a conical disk and a partition, so that the plastic particles after screening by the screen plate can fall to the top of the conical disk, and the rotation of the square rod can drive the conical disk to rotate, and the rotation of the conical disk drives the partition to rotate. The rotation of the partition can achieve the effect of evenly sprinkling the particles, which effectively improves the heating efficiency of the plastic particles. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 It is a side view of the internal structure of the feed hopper, the discharge hopper and the tray of the utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the material drop chute, screen plate and top block of the utility model;

[0018] Figure 4 This is a schematic diagram of the structure of the tray, fan-shaped guide plate and drop opening of the utility model;

[0019] Figure 5 It is a schematic diagram of the structure of the feed hopper, the discharge hopper and the triangular block of the utility model.

[0020] In the figure: 1. feed pipe; 2. feed hopper; 3. discharge hopper; 4. tray; 5. fan-shaped guide plate; 6. drop port; 7. U-shaped plate; 8. motor; 9. rotating rod; 10. push plate; 11. drop chute; 12. square rod; 13. sieve plate; 14. top block; 15. triangular block; 16. conical plate; 17. partition. DETAILED DESCRIPTION

[0021] 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.

[0022] Embodiment 1

[0023] Please refer to Figure 1-5 As shown, the utility model provides a feeding device for a plastic extruder, comprising a feeding pipe 1, the top of the feeding pipe 1 is connected to a feeding hopper 2, the bottom of the feeding pipe 1 is connected to a discharging hopper 3, a tray 4 is fixedly installed above the inner wall of the feeding pipe 1, a fan-shaped material guide plate 5 is fixedly installed on the inner wall of the feeding pipe 1 and located above the tray 4, and a material drop opening 6 is opened on the rear side of the top of the tray 4;

[0024] Specifically, a U-shaped plate 7 is fixedly installed on the surface of the feed hopper 2, and a motor 8 is fixedly installed on the top of the U-shaped plate 7. The motor 8 is a servo motor. The output shaft of the motor 8 is fixedly installed with a rotating rod 9 through a coupling. The bottom end of the rotating rod 9 extends to the inside of the feed pipe 1. A push plate 10 is fixedly installed on the surface of the rotating rod 9 and located between the tray 4 and the fan-shaped guide plate 5. The thickness of the push plate 10 is relatively large. A blanking groove 11 used in conjunction with the blanking port 6 is opened on the front side of the top of the push plate 10. By setting the push plate The plate 10 starts the motor 8, and then pours the plastic particles into the feed pipe 1 through the feed hopper 2. After entering the feed pipe 1, the plastic particles can fall into the inner side of the drop chute 11 through the fan-shaped guide plate 5. At the same time, the motor 8 starts to drive the rotating rod 9 to rotate, and the rotating rod 9 rotates to drive the push plate 10 to rotate. The push plate 10 rotates to drive the plastic particles inside the drop chute 11 to move. When the plastic particles move to the drop port 6, they can fall on the top of the screen plate 13 through the drop port 6, thereby achieving the effect of quantitative feeding.

[0025] Specifically, a square rod 12 is fixedly installed at the bottom end of the rotating rod 9, and a sieve plate 13 is slidably connected to the surface of the square rod 12. A top block 14 is fixedly installed at the bottom of the sieve plate 13, and a plurality of top blocks 14 are provided. The front and rear parts of the inner wall of the feed pipe 1 are fixedly installed with triangular blocks 15 used in conjunction with the top block 14. By providing the sieve plate 13, the square rod 12 can be driven to rotate when the rotating rod 9 rotates, and the rotation of the square rod 12 drives the sieve plate 13 to rotate, and the rotation of the sieve plate 13 drives the top block 14 to rotate. The rotation of the top block 14 causes the sieve plate 13 to vibrate up and down through contact with the triangular blocks 15, thereby achieving the effect of dispersing the plastic particles that are stuck together.

[0026] Wherein: a conical disk 16 is fixedly installed at the bottom end of the square rod 12, a partition 17 is fixedly installed on the top of the conical disk 16, and a plurality of partitions 17 are arranged in a ring shape. By arranging the conical disk 16, the conical disk 16 can be driven to rotate when the square rod 12 rotates, and the rotation of the conical disk 16 drives the partition 17 to rotate. The rotation of the partition 17 can achieve the effect of evenly sprinkling the plastic particles falling on the top of the conical disk 16, thereby effectively improving the heating efficiency of the plastic particles.

[0027] Working principle: The utility model is a feeding device for a plastic extruder. By starting the motor 8, the plastic particles are poured into the feed pipe 1 through the feed hopper 2. After entering the feed pipe 1, the plastic particles can fall into the inner side of the drop chute 11 through the fan-shaped guide plate 5. At the same time, the motor 8 is started to drive the rotating rod 9 to rotate, and the rotating rod 9 rotates to drive the push plate 10 to rotate. The push plate 10 rotates to drive the plastic particles inside the drop chute 11 to move. When the plastic particles move to the drop port 6, they can fall on the top of the sieve plate 13 through the drop port 6, thereby achieving the effect of quantitative feeding, and the rotating rod 9 The rotation drives the square rod 12 to rotate, the rotation of the square rod 12 drives the sieve plate 13 to rotate, the rotation of the sieve plate 13 drives the top block 14 to rotate, the rotation of the top block 14 makes the sieve plate 13 vibrate up and down through contact with the triangular block 15, thereby achieving the effect of dispersing the plastic particles stuck together, and the dispersed plastic particles can fall to the top of the conical disk 16 through the filtration of the sieve plate 13, and the rotation of the square rod 12 drives the conical disk 16 to rotate, and the rotation of the conical disk 16 drives the partition 17 to rotate, and the rotation of the partition 17 can achieve the effect of evenly sprinkling the particles, thereby effectively improving the heating efficiency of the plastic particles.

[0028] The contents not described in detail in this specification belong to the prior art known to professionals in this field.

[0029] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A feeding device for a plastic extruder, comprising a feeding pipe (1), characterized in that: The top of the feed pipe (1) is connected to a feed hopper (2), the bottom of the feed pipe (1) is connected to a discharge hopper (3), a tray (4) is fixedly installed above the inner wall of the feed pipe (1), a fan-shaped material guide plate (5) is fixedly installed on the inner wall of the feed pipe (1) and above the tray (4), and a material drop opening (6) is opened on the rear side of the top of the tray (4); A U-shaped plate (7) is fixedly mounted on the surface of the feed hopper (2), a motor (8) is fixedly mounted on the top of the U-shaped plate (7), a rotating rod (9) is fixedly mounted on the output shaft of the motor (8) via a coupling, the bottom end of the rotating rod (9) extends to the inside of the feed pipe (1), a push plate (10) is fixedly mounted on the surface of the rotating rod (9) and located between the tray (4) and the fan-shaped guide plate (5), and a blanking trough (11) for use with the blanking port (6) is provided on the front side of the top of the push plate (10).

2. A feeding device for a plastic extruder according to claim 1, characterized in that: A square rod (12) is fixedly mounted on the bottom end of the rotating rod (9), and a screen plate (13) is slidably connected to the surface of the square rod (12).

3. A feeding device for a plastic extruder according to claim 2, characterized in that: A top block (14) is fixedly mounted on the bottom of the sieve plate (13), and a plurality of top blocks (14) are provided.

4. A feeding device for a plastic extruder according to claim 3, characterized in that: The front and rear parts of the inner wall of the feed pipe (1) are both fixedly mounted with triangular blocks (15) for use in conjunction with the top block (14).

5. A feeding device for a plastic extruder according to claim 2, characterized in that: A conical disk (16) is fixedly mounted on the bottom end of the square rod (12).

6. A feeding device for a plastic extruder according to claim 5, characterized in that: A partition plate (17) is fixedly mounted on the top of the conical disk (16), and a plurality of partition plates (17) are arranged in an annular shape.

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