Feeding mechanism of plastic extruder

Abstract

The utility model relates to the field of plastic extruders, and discloses a plastic extruder feeding mechanism which comprises a feeding frame, a fixed hopper is fixedly mounted in the middle of the bottom end of the feeding frame, a discharging pipe opening is formed in the middle of the bottom end of the feeding frame, a supporting frame is welded to the upper surface of the feeding frame, and a supporting rotating shaft is rotationally mounted in the position, extending into the feeding frame, of the middle of the bottom end of the supporting frame. The top end of the supporting rotating shaft extends to the upper surface of the supporting frame to be provided with a driving motor, a spiral guide disc is installed on the outer surface of the supporting rotating shaft and located in the feeding frame, a fixed inner cavity is formed in the feeding frame, and a plurality of through holes are formed in one side, close to the interior of the feeding frame, of the inner wall of the fixed inner cavity; according to the plastic particle feeding device, dust accumulated in the feeding frame is sucked out through cooperation of the air inlet fan and the exhaust fan, so that the effect of conveniently cleaning dust generated during feeding of plastic particles is achieved, the effect of splashing flying dust during feeding of the plastic particles is reduced, and the problem that plastic extrusion is affected due to the fact that dust is doped in the plastic particles is solved.

Description

Technical Field

[0001] This application relates to the field of plastic extruders, and particularly to a feeding mechanism for a plastic extruder. Background Art

[0002] A plastic extruder is a device used for producing plastic products. By heating, compressing, and extruding plastic raw materials into various shapes, it can manufacture various plastic pipes, sheets, profiles, films, and other products. An extruder usually consists of a feeding system, a plasticizing system, an extrusion system, a die, and a cooling system, etc. The feeding system is used to send plastic particles or powders into the plasticizing screw of the extruder. This process ensures that the extruder can continuously obtain raw materials from the hopper and transport them to the plasticizing screw for heating and plasticizing.

[0003] When plastic particles are poured into the feeding hopper of a plastic extruder, due to the presence of a certain amount of dust and plastic debris in the plastic particles, a large amount of dust will be splashed in the feeding hopper and extend outside the plastic extruder, thus causing a certain degree of pollution to the surrounding environment and also having a certain impact on the extrusion effect of the plastic particle finished products.

[0004] Regarding the above related technologies, the inventor believes that there are defects in the large amount of dust splashing during the feeding of plastic particles. Therefore, a feeding mechanism for a plastic extruder is proposed to solve the above problems. Utility Model Content

[0005] In order to solve the problem of a large amount of dust splashing during the feeding of plastic particles, this application provides a feeding mechanism for a plastic extruder.

[0006] The feeding mechanism for a plastic extruder provided by this application adopts the following technical solutions:

[0007] A feeding mechanism for a plastic extruder includes a feeding frame. A fixed hopper is fixedly installed in the middle of the bottom end of the feeding frame. An outlet pipe opening is provided in the middle of the bottom end of the feeding frame. A support frame is welded on the upper surface of the feeding frame. A support rotating shaft is rotatably installed inside the feeding frame by extending to the middle of the bottom end of the support frame. The top end of the support rotating shaft extends to the upper surface of the support frame and is equipped with a driving motor. A spiral guide plate is installed on the outer surface of the support rotating shaft inside the feeding frame. A fixed inner cavity is opened inside the feeding frame. A number of through holes are opened through the inner wall of the fixed inner cavity near the inside of the feeding frame. A dust removal mechanism is also provided on the outer surface of the feeding frame for cleaning the dust raised in the feeding frame.

[0008] Preferably, the dust removal mechanism includes a first bracket symmetrically fixed on one side of the outer surface of the feeding frame. An intake fan is installed inside the first bracket. A second bracket is fixed on the other side of the outer surface of the feeding frame opposite to the first bracket. An exhaust fan is installed inside the second bracket.

[0009] Preferably, a dust guide pipe is fixedly installed on one side of the second support, and a dust collection cloth bag is sleeved at the bottom on one side of the outer surface of the dust guide pipe.

[0010] Preferably, the spiral feeding disk is located inside the feeding rack, the outer diameter of the spiral feeding disk is smaller than the inner diameter of the feeding rack, and the feeding rack and the spiral feeding disk are mutually embedded.

[0011] Preferably, ventilation openings are formed through one side of the inner walls of the first support and the second support, and the first support and the second support are both connected to the fixed inner cavity through.

[0012] In summary, the present application includes the following beneficial technical effects:

[0013] By pouring plastic particles into the fixed hopper, enabling them to be spirally conveyed downward along the spiral feeding disk and discharged from the discharge pipe opening, the dust splashed by the plastic particles accumulates inside the feeding rack. Fresh air from the outside is blown into the fixed inner cavity through the intake fan, and the dust accumulated in the feeding rack is sucked out through multiple through holes in cooperation with the exhaust fan and accumulates in the dust collection cloth bag; compared with the prior art, this solution has the effect of facilitating the cleaning of the dust generated during the feeding of plastic particles, reducing the dust raising effect during the feeding of plastic particles, and solving the problem that dust is mixed in the plastic particles and affects plastic extrusion. Description of the Drawings

[0014] Figure 1 is the overall structural schematic diagram of the application embodiment;

[0015] Figure 2 is the cross-sectional structural schematic diagram of the feeding rack in the application embodiment;

[0016] Figure 3 is the structural schematic diagram of the spiral feeding disk in the application embodiment;

[0017] Description of the reference numerals: 1. Feeding rack; 2. Fixed hopper; 3. Discharge pipe opening; 4. Support frame; 5. Support rotating shaft; 6. Driving motor; 7. Spiral feeding disk; 8. Fixed inner cavity; 9. Through hole; 10. First support; 11. Intake fan; 12. Second support; 13. Exhaust fan; 14. Dust guide pipe; 15. Dust collection cloth bag. Detailed Description of the Invention

[0018] The following further elaborates on the present application in conjunction with the attached Figures 1-3 for a more detailed description of the present application.

[0019] The embodiment of the present application discloses a feeding mechanism for a plastic extruder. Refer to Figures 1-3, A feeding mechanism for a plastic extruder, including a feeding frame 1. In the middle of the bottom end of the feeding frame 1, a fixed hopper 2 is fixedly installed. In the middle of the bottom end of the feeding frame 1, a discharge pipe orifice 3 is provided. On the upper surface of the feeding frame 1, a support frame 4 is welded. In the middle of the bottom end of the support frame 4, it extends into the interior of the feeding frame 1 and a support rotating shaft 5 is rotatably installed. The top end of the support rotating shaft 5 extends to the upper surface of the support frame 4 and a driving motor 6 is installed. On the outer surface of the support rotating shaft 5 inside the feeding frame 1, a spiral guiding plate 7 is installed. The spiral guiding plate 7 is located inside the feeding frame 1. The outer diameter of the spiral guiding plate 7 is smaller than the inner diameter of the feeding frame 1. The feeding frame 1 and the spiral guiding plate 7 are mutually embedded. Inside the feeding frame 1, a fixed inner cavity 8 is opened. On one side of the inner wall of the fixed inner cavity 8 near the interior of the feeding frame 1, a number of through holes 9 are penetrated and opened. On the outer surface of the feeding frame 1, a dust removal mechanism is also provided for cleaning the dust raised in the feeding frame 1.

[0020] By pouring plastic particles into the fixed hopper 2, the plastic particles enter the feeding frame 1 along the opening at the bottom end of the fixed hopper 2. Start the driving motor 6 to drive the support rotating shaft 5 to rotate, so that the support rotating shaft 5 drives the spiral guiding plate 7 to rotate synchronously. Then the plastic particles are spirally conveyed downward along the spiral guiding plate 7 and discharged from the discharge pipe orifice 3, making the dust splashed by the plastic particles conveyed on the spiral guiding plate 7 accumulate inside the feeding frame 1, reflecting the spiral conveying effect of the plastic particles inside the feeding frame 1.

[0021] Refer to Figure 2 and Figure 3 , The dust removal mechanism includes a first bracket 10. The first bracket 10 is symmetrically fixedly connected to one side of the outer surface of the feeding frame 1. An intake fan 11 is installed inside the first bracket 10. On the other side of the outer surface of the feeding frame 1 opposite to the first bracket 10, a second bracket 12 is fixedly connected. On one side of the inner walls of the first bracket 10 and the second bracket 12, ventilation openings are penetrated and opened. Both the first bracket 10 and the second bracket 12 are connected to the fixed inner cavity 8 in a penetrating manner. An exhaust fan 13 is installed inside the second bracket 12. On one side of the second bracket 12, a dust guiding pipe 14 is fixedly installed. On the bottom of one side of the outer surface of the dust guiding pipe 14, a dust collecting cloth bag 15 is sleeved.

[0022] By starting the intake fan 11 to blow the external fresh air into the fixed inner cavity 8 along the first bracket 10, it is conveyed into the feeding frame 1 through a number of through holes 9. Then start the exhaust fan 13 to suck the dust accumulated in the feeding frame 1 into the fixed inner cavity 8 along a number of through holes 9, and then suck out the dust in the fixed inner cavity 8, so that the exhaust fan 13 guides the dust into the dust guiding pipe 14. Tie the dust collecting cloth bag 15 at the bottom opening of the dust guiding pipe 14, so that the dust is conveyed along the dust guiding pipe 14 and accumulates inside the dust collecting cloth bag 15, reflecting the overall cleaning effect of the dust in the feeding frame 1.

[0023] The implementation principle of a feeding mechanism for a plastic extruder in an embodiment of this application is as follows: Pour plastic particles into the fixed hopper 2, so that the plastic particles enter the feeding rack 1 along the opening at the bottom of the fixed hopper 2. Start the driving motor 6 to drive the support rotating shaft 5 to rotate, so that the support rotating shaft 5 drives the spiral feeding disk 7 to rotate synchronously. Further, the plastic particles are spirally conveyed downward along the spiral feeding disk 7 and discharged from the discharge pipe orifice 3. The dust splashed by the plastic particles conveyed on the spiral feeding disk 7 accumulates inside the feeding rack 1. By starting the intake fan 11, the external fresh air is blown into the fixed inner cavity 8 along the first support 10, and is conveyed into the feeding rack 1 through a plurality of through holes 9. Then start the exhaust fan 13 to suck the dust accumulated in the feeding rack 1 into the fixed inner cavity 8 along the plurality of through holes 9, and then suck out the dust in the fixed inner cavity 8, so that the exhaust fan 13 conducts the dust into the dust guide pipe 14. Tie the dust collection cloth bag 15 at the opening at the bottom end of the dust guide pipe 14, so that the dust is conveyed along the dust guide pipe 14 and accumulates inside the dust collection cloth bag 15. The input ends of the power supplies of the driving motor 6, the intake fan 11, and the exhaust fan 13 are all electrically connected to the output end of the external power supply; Compared with the prior art, this solution has the effect of facilitating the cleaning of the dust generated during the feeding of plastic particles, reducing the dust-raising effect during the feeding of plastic particles, and solving the problem that the dust is mixed in the plastic particles and affects plastic extrusion.

[0024] Finally, several points should be noted: First, in the description of this application, it should be noted that unless otherwise specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense. It can be a mechanical connection or an electrical connection, or it can be the communication inside two components. It can be directly connected. "Up", "down", "left", "right", etc. are only used to represent the relative position relationship. When the absolute position of the object being described changes, the relative position relationship may change;

[0025] Second: In the drawings of the disclosed embodiments of this utility model, only the structures related to the disclosed embodiments of this application are involved. For other structures, reference can be made to the usual designs. Without conflict, the same embodiment and different embodiments of this utility model can be combined with each other;

[0026] Finally: The above are only the preferred embodiments of this utility model and are not used to limit this utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of this utility model shall be included within the protection scope of this utility model.

[0027] The above are all the preferred embodiments of this application, and do not limit the protection scope of this application accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of this application shall be covered within the protection scope of this application.

Claims

1. A feeding mechanism for a plastic extruder, comprising a feeding frame (1), characterized in that: A fixed hopper (2) is fixedly installed in the middle of the bottom end of the loading rack (1), and a discharge pipe opening (3) is arranged in the middle of the bottom end of the loading rack (1). A support frame (4) is welded on the upper surface of the loading rack (1). A support shaft (5) is rotatably installed on the middle of the bottom end of the support frame (4) extending to the inside of the loading rack (1). A driving motor (6) is installed on the top of the support shaft (5) extending to the upper surface of the support frame (4). A spiral guide plate (7) is installed on the outer surface of the support shaft (5) located inside the loading rack (1). A fixed inner cavity (8) is provided inside the loading rack (1), and a plurality of through holes (9) are provided on one side of the inner wall of the fixed inner cavity (8) close to the inside of the loading rack (1). A dust removal mechanism is also provided on the outer surface of the loading rack (1) for cleaning dust raised in the loading rack (1).

2. A plastic extruder feeding mechanism according to claim 1, characterized in that: The dust removal mechanism comprises a No. 1 bracket (10), the No. 1 bracket (10) is symmetrically fixed to one side of the outer surface of the loading rack (1), an air intake fan (11) is installed inside the No. 1 bracket (10), and a No. 2 bracket (12) is fixed to the other side of the outer surface of the loading rack (1) away from the No. 1 bracket (10), and an exhaust fan (13) is installed inside the No. 2 bracket (12).

3. A plastic extruder feeding mechanism according to claim 2, characterized in that: A dust guide tube (14) is fixedly mounted on one side of the second bracket (12), and a dust collecting bag (15) is sleeved on the bottom of one side of the outer surface of the dust guide tube (14).

4. A plastic extruder feeding mechanism according to claim 1, characterized in that: The spiral material guide plate (7) is located inside the loading rack (1); the outer diameter of the spiral material guide plate (7) is smaller than the inner diameter of the loading rack (1); the loading rack (1) and the spiral material guide plate (7) are interlocked.

5. A plastic extruder feeding mechanism according to claim 2, characterized in that: A ventilation hole is provided through one side of the inner wall of the first bracket (10) and the second bracket (12), and the first bracket (10) and the second bracket (12) are both through-connected to the fixed inner cavity (8).

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