Feeding device for extruder

Abstract

The utility model discloses a feeding device for an extruder, which relates to the technical field of extruders and comprises an extruder, a feed hopper arranged above the extruder, a rotating shaft horizontally arranged in the middle of the interior of the feed hopper, a plurality of uniformly distributed stirring rods arranged on the side surface of the rotating shaft and capable of rotating, and an eccentric wheel arranged in the middle of the rotating shaft. A dredging rod is arranged below the eccentric wheel, the dredging rod is sleeved with a spring, and the rotating shaft rotates to drive the dredging rod to do reciprocating rectilinear motion in the vertical direction; the rotating shaft rotates to drive the stirring rods to rotate so as to uniformly stir materials and prevent the materials from caking, the stirring rods can dredge the materials and avoid blockage while stirring, and the dredging rods do reciprocating rectilinear motion in the vertical direction and can uninterruptedly dredge the feeding port of the extruder, so that the anti-blockage effect is achieved; and the feeding becomes more uniform.

Description

Technical Field

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

[0002] Extruder is a type of plastic machinery. It 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] The existing extruder feeding structure generally feeds materials through a hopper, and the existing feeding hopper can only store materials and feed them by their own weight. Since materials accumulate at the extruder feed port, the feeding is not smooth, the feeding rate is slow, and problems such as uneven feeding and blockage are prone to occur.

[0004] In view of the above problems, the utility model provides a feeding device for an extruder. Utility Model Content

[0005] The purpose of the utility model is to provide a feeding device for an extruder, which drives the rotation of a stirring rod by the rotation of a rotating shaft to stir the material evenly and prevent the material from agglomerating. The stirring rod can also dredge the material while stirring to avoid blockage. The dredging rod performs reciprocating linear motion in a vertical direction and can continuously dredge the feed port of the extruder, thereby achieving an anti-blockage effect and making the feeding more uniform, thereby solving the problems in the background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a feeding device for an extruder, comprising an extruder, a feeding hopper is arranged above the extruder, a rotating shaft is arranged horizontally in the middle of the inner part of the feeding hopper, a plurality of evenly distributed stirring rods are arranged on the side of the rotating shaft, and the stirring rods can rotate, an eccentric wheel is arranged in the middle of the rotating shaft, a clearing rod is arranged below the eccentric wheel, a spring is arranged on the outer side of the clearing rod, and the rotating shaft rotates to drive the clearing rod to perform reciprocating linear motion in the vertical direction.

[0007] Furthermore, both ends of the rotating shaft are rotatably connected to the inner wall of the feeding hopper through bearings, a motor is fixedly installed on the outer side of the feeding hopper, and one end of the rotating shaft extends to the outside of the feeding hopper and is fixedly connected to the motor output end outside the feeding hopper.

[0008] Furthermore, a rectangular block is provided inside the feeding hopper, and a number of mutually symmetrical fixing rods are fixedly connected to the side surfaces of the rectangular block, and the other ends of the fixing rods are fixedly connected to the inner wall of the feeding hopper, a circular cavity is opened inside the rectangular block, and an eccentric wheel is provided inside the circular cavity, and the eccentric wheel is fixedly mounted on the rotating shaft, and a cylinder is fixedly connected to the bottom end surface of the rectangular block, and a dredging rod passes through the inside of the cylinder, and one end of a spring is fixedly connected to the inner bottom end surface of the cylinder, and the other end of the spring is fixedly connected to the bottom end surface of a disc, and the disc is fixedly connected to the upper part of the dredging rod and is slidably connected to the inner wall of the cylinder, and the upper end of the dredging rod extends outward into the inside of the circular cavity.

[0009] Furthermore, a first semicircular cover plate is fixedly connected to the upper end face of the feeding hopper, a second semicircular cover plate is arranged above the first semicircular cover plate, the first semicircular cover plate and the second semicircular cover plate are connected by a hinge, and the second semicircular cover plate rotates to cooperate with the first semicircular cover plate to close the upper end face of the feeding hopper.

[0010] Furthermore, a solenoid valve is fixedly installed at the discharge port of the feed hopper.

[0011] Furthermore, a transparent plate is fixedly mounted on the side of the lower end of the feeding hopper.

[0012] Compared with the prior art, the utility model has the following beneficial effects: when in use, the material is first placed in the feed hopper, and then the rotation of the rotating shaft drives the stirring rod to rotate to stir the material evenly to prevent the placed material from agglomerating. The rotation of the rotating shaft drives the eccentric wheel to rotate, and the eccentric wheel cooperates with the spring to drive the dredging rod to make reciprocating linear motion in the vertical direction, so that the dredging rod moves up and down cyclically at the feed port of the extruder to prevent the feed port from being blocked. The stirring rod can dredge the material while stirring to avoid blockage. The purpose of this design is to drive the rotation of the stirring rod through the rotation of the rotating shaft to stir the material evenly to prevent the material from agglomerating. The stirring rod can dredge the material while stirring to avoid blockage. The dredging rod makes reciprocating linear motion in the vertical direction, which can continuously dredge the feed port of the extruder, thereby achieving the effect of anti-blocking and making the feeding more uniform. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 This is a schematic diagram of the internal structure of the feed hopper in the utility model;

[0015] Figure 3 This is a schematic diagram of the internal structure of the rectangular block in the utility model;

[0016] Figure 4 This is a schematic diagram of the disc structure in the utility model;

[0017] Figure 5 It is a schematic diagram of the transparent plate structure in the utility model.

[0018] In the figure: 1. extruder; 2. feed hopper; 3. solenoid valve; 4. transparent plate; 5. motor; 6. first semicircular cover plate; 7. second semicircular cover plate; 8. rotating shaft; 9. stirring rod; 10. rectangular block; 11. fixing rod; 12. circular cavity; 13. eccentric wheel; 14. dredging rod; 15. cylinder; 16. spring; 17. disc. DETAILED DESCRIPTION

[0019] 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.

[0020] In order to solve the technical problems of uneven feeding and clogging of extruder, such as Figure 1-5 As shown, the following preferred technical solutions are provided:

[0021] A feeding device for an extruder comprises an extruder 1. A feeding hopper 2 is arranged above the extruder 1. A rotating shaft 8 is horizontally arranged in the middle of the feeding hopper 2. A plurality of evenly distributed stirring rods 9 are arranged on the side of the rotating shaft 8. The stirring rods 9 can rotate. An eccentric wheel 13 is arranged in the middle of the rotating shaft 8. A dredging rod 14 is arranged below the eccentric wheel 13. A spring 16 is sleeved on the outer side of the dredging rod 14. The rotating shaft 8 rotates to drive the dredging rod 14 to perform reciprocating linear motion in the vertical direction.

[0022] Specifically, when in use, the material is first placed in the feed hopper 2, and then the rotation of the rotating shaft 8 drives the stirring rod 9 to rotate to stir the material evenly to prevent the placed material from agglomerating. The rotation of the rotating shaft 8 drives the eccentric wheel 13 to rotate, and the eccentric wheel 13 cooperates with the spring 16 to drive the unblocking rod 14 to make reciprocating linear motion in the vertical direction, so that the unblocking rod 14 circulates up and down at the feed port of the extruder 1 to prevent the feed port from being blocked. The stirring rod 9 can dredge the material while stirring to avoid blockage. The purpose of this design is to drive the rotation of the stirring rod 9 through the rotation of the rotating shaft 8 to stir the material evenly to prevent the material from agglomerating. The stirring rod 9 can dredge the material while stirring to avoid blockage. The unblocking rod 14 makes reciprocating linear motion in the vertical direction, which can continuously dredge the feed port of the extruder 1, thereby achieving the effect of anti-blocking and making the feeding more uniform.

[0023] Further, such as Figure 1 and Figure 2 As shown, the following preferred technical solutions are provided:

[0024] Both ends of the rotating shaft 8 are rotatably connected to the inner wall of the feeding hopper 2 through bearings. The outer side of the feeding hopper 2 is fixedly installed with a motor 5. One end of the rotating shaft 8 extends to the outside of the feeding hopper 2 and is fixedly connected to the output end of the motor 5 outside the feeding hopper 2. The purpose of this design is to drive the rotation of the rotating shaft 8 by the rotation of the output end of the motor 5.

[0025] Further, such as Figure 2 , Figure 3 and Figure 4 As shown, the following preferred technical solutions are provided:

[0026] A rectangular block 10 is provided inside the feed hopper 2, and a plurality of mutually symmetrical fixed rods 11 are fixedly connected to the side of the rectangular block 10, and the other end of the fixed rod 11 is fixedly connected to the inner wall of the feed hopper 2. A circular cavity 12 is provided inside the rectangular block 10, and an eccentric wheel 13 is provided inside the circular cavity 12. The eccentric wheel 13 is fixedly mounted on the rotating shaft 8. A cylinder 15 is fixedly connected to the bottom end surface of the rectangular block 10, and a dredging rod 14 passes through the inside of the cylinder 15. One end of a spring 16 is fixedly connected to the inner bottom end surface of the cylinder 15, and the spring 16 is fixedly connected to the inner bottom end surface of the cylinder 15. The other end of the spring 16 is fixedly connected to the bottom end surface of the disc 17, the disc 17 is fixedly connected to the upper part of the dredging rod 14 and is slidably connected to the inner wall of the cylinder 15, and the upper end of the dredging rod 14 extends outward into the circular cavity 12. The purpose of this design is to make the dredging rod 14 move downward through the rotation of the eccentric wheel 13. The downward movement of the dredging rod 14 causes the fixedly connected disc 17 to compress the spring 16, and then the elastic force of the spring 16 will drive the dredging rod 14 to move upward, thereby causing the dredging rod 14 to perform reciprocating linear motion in the vertical direction.

[0027] Further, such as Figure 1 As shown, the following preferred technical solutions are provided:

[0028] The upper end face of the feeding hopper 2 is fixedly connected with a first semicircular cover plate 6, and a second semicircular cover plate 7 is arranged above the first semicircular cover plate 6. The first semicircular cover plate 6 and the second semicircular cover plate 7 are connected by a hinge, and the second semicircular cover plate 7 rotates to cooperate with the first semicircular cover plate 6 to close the upper end face of the feeding hopper 2. The purpose of such design is to close the upper end face of the feeding hopper 2 through the cooperation of the first semicircular cover plate 6 and the second semicircular cover plate 7 to prevent impurities from entering when the feeding hopper 2 is working.

[0029] Further, such as Figure 5 As shown, the following preferred technical solutions are provided:

[0030] The discharge port of the feed hopper 2 is fixedly installed with an electromagnetic valve 3. The purpose of this design is to control the opening and closing of the discharge port of the feed hopper 2 through the electromagnetic valve 3.

[0031] Further, such as Figure 5 As shown, the following preferred technical solutions are provided:

[0032] A transparent plate 4 is fixedly mounted on the side of the lower end of the feed hopper 2 . The purpose of this design is to observe the condition of the material inside the feed hopper 2 through the transparent plate 4 .

[0033] To sum up: when in use, first place the material into the feed hopper 2, and then the rotation of the rotating shaft 8 drives the stirring rod 9 to rotate to stir the material evenly to prevent the put-in material from agglomerating. The rotation of the rotating shaft 8 drives the eccentric wheel 13 to rotate, and the eccentric wheel 13 cooperates with the spring 16 to drive the dredging rod 14 to make reciprocating linear motion in the vertical direction, so that the dredging rod 14 circulates up and down at the feed port of the extruder 1 to prevent the feed port from being blocked. The stirring rod 9 can dredge the material while stirring to avoid blockage. The purpose of this design is to drive the rotation of the stirring rod 9 by the rotation of the rotating shaft 8 to stir the material evenly to prevent the material from agglomerating. The stirring rod 9 can dredge the material while stirring to avoid blockage. The dredging rod 14 makes reciprocating linear motion in the vertical direction, which can continuously dredge the feed port of the extruder 1, thereby achieving the effect of anti-blocking and making the feeding more uniform.

[0034] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0035] 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 an extruder, characterized in that: The invention comprises an extruder (1), wherein a feed hopper (2) is arranged above the extruder (1), a rotating shaft (8) is arranged horizontally in the middle of the feeding hopper (2), a plurality of evenly distributed stirring rods (9) are arranged on the side of the rotating shaft (8), and the stirring rods (9) can rotate, an eccentric wheel (13) is arranged in the middle of the rotating shaft (8), a dredging rod (14) is arranged below the eccentric wheel (13), a spring (16) is sleeved on the outer side of the dredging rod (14), and the rotating shaft (8) rotates to drive the dredging rod (14) to perform reciprocating linear motion in a vertical direction.

2. The feeding device for an extruder according to claim 1, characterized in that: The two ends of the rotating shaft (8) are rotatably connected to the inner wall of the feeding hopper (2) through bearings, and a motor (5) is fixedly installed on the outer side of the feeding hopper (2). One end of the rotating shaft (8) extends to the outside of the feeding hopper (2) and is fixedly connected to the output end of the motor (5) fixedly installed on the outside of the feeding hopper (2).

3. The feeding device for an extruder according to claim 1, characterized in that: A rectangular block (10) is arranged inside the feeding hopper (2). A plurality of mutually symmetrical fixed rods (11) are fixedly connected to the side of the rectangular block (10). The other end of the fixed rod (11) is fixedly connected to the inner wall of the feeding hopper (2). A circular cavity (12) is provided inside the rectangular block (10). An eccentric wheel (13) is arranged inside the circular cavity (12). The eccentric wheel (13) is fixedly mounted on the rotating shaft (8). A cylinder (15) is fixedly connected to the bottom end surface of the rectangular block (10). A dredging rod (14) passes through the inside of the cylinder (15). One end of a spring (16) is fixedly connected to the inner bottom end surface of the cylinder (15). The other end of the spring (16) is fixedly connected to the bottom end surface of a disc (17). The disc (17) is fixedly connected to the upper part of the dredging rod (14) and is slidably connected to the inner wall of the cylinder (15). The upper end of the dredging rod (14) extends outward into the inside of the circular cavity (12).

4. The feeding device for an extruder according to claim 1, characterized in that: The upper end surface of the feeding hopper (2) is fixedly connected to a first semicircular cover plate (6), and a second semicircular cover plate (7) is arranged above the first semicircular cover plate (6). The first semicircular cover plate (6) and the second semicircular cover plate (7) are connected by a hinge, and the second semicircular cover plate (7) rotates to cooperate with the first semicircular cover plate (6) to close the upper end surface of the feeding hopper (2).

5. The feeding device for an extruder according to claim 1, characterized in that: An electromagnetic valve (3) is fixedly installed at the discharge port of the feed hopper (2).

6. The feeding device for an extruder according to claim 1, characterized in that: A transparent plate (4) is fixedly mounted on the side surface of the lower end of the supply hopper (2).

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