PE raw material cleaning device for PE pipe production

Abstract

The utility model discloses a PE raw material cleaning device for polyethylene PE pipe production, which comprises a cleaning device body, a rotating frame rotationally connected to the cleaning device body through a rotating shaft, a plurality of sieve plates fixed on the rotating frame in an array, a driving motor fixed on one side of the cleaning device body, and a fixing plate fixed on the rotating shaft, the fixing plate is fixed to the top of the side, close to the rotating frame, of the cleaning device body, a rotating mechanism and a rotating plate are arranged on the fixing plate, the rotating plate is fixed to the end, away from the driving motor, of the rotating shaft, and a driving mechanism capable of driving the rotating mechanism to rotate is arranged on the rotating plate. According to the PE raw material cleaning device, the driving mechanism is arranged to drive the rotating mechanism, so that the rotating mechanism knocks the sieve plate, PE raw materials adsorbed on the sieve plate are conveniently vibrated to fall to the discharge port and discharged, the falling amount of the PE raw materials on the sieve plate is increased, and then the cleaning efficiency is improved.

Description

A PE raw material cleaning device for polyethylene (PE) pipe production Technical Field

[0001] This utility model relates to the field of PE raw material cleaning technology, specifically to a PE raw material cleaning device for the production of polyethylene (PE) pipes. Background Technology

[0002] Polyethylene (PE) pipe is a type of plastic pipe characterized by its corrosion resistance, impact resistance, and long service life. It is primarily used for water supply and gas pipes. Polyethylene is polymerized from ethylene monomers. Due to variations in polymerization conditions such as pressure and temperature, resins of different densities can be obtained, resulting in classifications such as high-density polyethylene (HDPE), medium-density polyethylene (MDPE), and low-density polyethylene (LDPE). The PE raw material needs to be cleaned before processing PE pipes.

[0003] Common cleaning devices on the market typically involve filling the tank with water first, then pouring the PE material into the tank. A motor controls the stirring rod to rotate, which cleans the PE material. Simultaneously, the rotating frame rotates towards the discharge port, causing the screen plate to rotate and scoop out the PE material from the water. Due to gravity, the material on the screen plate falls to the discharge port and is discharged. However, the PE material on the screen plate contains water, which adheres to the screen plate, resulting in less PE material falling to the discharge port each time, thus reducing cleaning efficiency. Summary of the Invention

[0004] The purpose of this invention is to provide a PE raw material cleaning device for the production of polyethylene (PE) pipes, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a PE raw material cleaning device for polyethylene (PE) pipe production, comprising:

[0006] The cleaning device body has a rotating frame rotatably connected to it via a rotating shaft. Several sieve plates are fixed in an array on the rotating frame. A drive motor is fixed to one side of the cleaning device body, and the output end of the drive motor is fixed to the rotating shaft.

[0007] A fixing plate is fixed to the top of the cleaning device body near the rotating frame, and a rotating mechanism is provided on the fixing plate;

[0008] A rotating plate is fixed to the end of the rotating shaft away from the drive motor, and a drive mechanism connected to the rotating mechanism is provided on the rotating plate.

[0009] Preferably, the rotating mechanism includes fixed blocks on both sides of the top of the fixed plate, a rotating column between the two fixed blocks, a rotating rod fixed on the rotating column, and the two ends of the rotating column being rotatably connected to the two fixed blocks through bearings. A counterweight is fixed to the end of the rotating rod away from the rotating column, and the counterweight faces the screen plate. Under the action of the counterweight, the rotating rod will drive the rotating column to rotate, thereby striking the screen plate and causing the screen plate to vibrate, which facilitates the shaking off of the material adsorbed on the screen plate.

[0010] Preferably, a spring is fixed between the fixed plate and the rotating rod, and a rubber block is fixed to the bottom of the counterweight. Under the action of the spring, the spring will drive the rotating rod to rotate, which will increase the striking force of the rotating rod. The rubber block can reduce the damage caused by the counterweight to the screen plate.

[0011] Preferably, a rectangular block is fixed on the fixed plate, and a stop block is fixed on the rotating column. The stop block and the rectangular block cooperate with each other to prevent the rotating rod from continuing to rotate backward and to limit the rotation of the rotating rod.

[0012] Preferably, the driving mechanism includes an annular groove on a rotating plate, and a plurality of semi-circular grooves arranged in an array on the inner circumferential surface of the annular groove. A connecting rod is fixed on the rotating rod, and a moving rod is fixed on the connecting rod. The end of the moving rod away from the connecting rod is located inside the semi-circular groove. When the rotating plate rotates, the moving rod will always be in contact with the rotating plate due to the action of the spring. When the rotating plate rotates, the moving rod will enter the semi-circular groove and then move out of the semi-circular groove. When the moving rod enters the semi-circular groove, the rotating rod will rotate towards the screen plate without the obstruction of the rotating plate, thereby striking the screen plate.

[0013] Preferably, a roller is installed at the end of the moving rod, and the roller rolls in contact with the inner circumferential surface of the annular groove and the arc-shaped side of the semi-arc groove, which helps to reduce the friction between the moving rod and the semi-arc groove and can extend the service life of the moving rod and the semi-arc groove.

[0014] Preferably, the number of semi-circular grooves is the same as the number of sieve plates, and the positions of the semi-circular grooves match the positions of the sieve plates one by one, so that when the moving rod enters the interior of the semi-circular groove, the moving rod will drive the rotating rod to rotate and strike the sieve plate.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] By setting a drive mechanism to drive the rotating mechanism, the rotating mechanism knocks on the screen plate, which facilitates the shaking of the PE raw material adsorbed on the screen plate to the discharge port and discharge, thereby increasing the amount of PE raw material falling off the screen plate and thus improving the cleaning efficiency. Attached Figure Description

[0017] Figure 1 is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 is a side sectional view of the rotating plate structure of this utility model;

[0019] Figure 3 is an enlarged schematic diagram of the structure at point A in Figure 2;

[0020] Figure 4 is an enlarged schematic diagram of the side section structure of the rotating plate of this utility model;

[0021] Figure 5 is an enlarged schematic diagram of the structure at point B in Figure 2.

[0022] In the diagram: 1. Cleaning device body; 2. Rotating plate; 3. Moving rod; 4. Fixed plate; 5. Drive motor; 6. Rotating frame; 7. Screen plate; 8. Semi-arc groove; 9. Connecting rod; 10. Rotating rod; 11. Counterweight; 12. Rubber block; 13. Spring; 14. Fixed block; 15. Rotating column; 16. Rectangular block; 17. Stop block; 18. Annular groove; 19. Roller. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please refer to Figures 1 to 5. One embodiment of this utility model provides a PE raw material cleaning device for polyethylene (PE) pipe production, comprising:

[0025] The main body of the cleaning device 1 is connected to a rotating frame 6 via a rotating shaft. Several screen plates 7 are fixed in an array on the rotating frame 6. A drive motor 5 is fixed on one side of the main body of the cleaning device 1. The output end of the drive motor 5 is fixed to the rotating shaft. When the main body of the cleaning device 1 is working, the tank of the main body of the cleaning device 1 needs to be filled with water first. PE raw materials are poured into the tank. The motor controls the stirring rod to rotate. The stirring rod will clean the PE raw materials. Then the drive motor 5 drives the rotating frame 6 to rotate towards the discharge port. The rotating frame 6 will drive the screen plates 7 to rotate, thereby picking out the PE raw materials in the water. The material on the screen plates 7 will fall from the screen plates 7 to the discharge port and be discharged due to gravity.

[0026] Fixed plate 4 is fixed to the top of the side of the main body 1 of the cleaning device near the rotating frame 6. The fixed plate 4 is equipped with a rotating mechanism to facilitate striking the screen plate 7.

[0027] Rotating plate 2 is fixed at the end of the rotating shaft away from the drive motor 5. The rotating plate 2 is equipped with a drive mechanism connected to the rotating mechanism, which facilitates driving the rotating mechanism to strike the screen plate 7.

[0028] Furthermore, the rotating mechanism includes fixed blocks 14 fixed on both sides of the top of the fixed plate 4, a rotating column 15 between the two fixed blocks 14, a rotating rod 10 fixed on the rotating column 15, and the two ends of the rotating column 15 are rotatably connected to the two fixed blocks 14 through bearings. A counterweight 11 is fixed at the end of the rotating rod 10 away from the rotating column 15, and the counterweight 11 faces the screen plate 7. Under the action of the counterweight 11, the rotating rod 10 will drive the rotating column 15 to rotate toward the screen plate 7, thereby striking the screen plate 7 and causing the screen plate 7 to vibrate, which facilitates the shaking off of the material adsorbed on the screen plate 7.

[0029] Furthermore, a spring 13 is fixed between the fixed plate 4 and the rotating rod 10, and a rubber block 12 is fixed to the bottom of the counterweight 11. The spring 13 is always in a stretched state. Under the action of the spring 13, the spring 13 will drive the rotating rod 10 to rotate, which makes it easier to increase the striking force of the rotating rod 10. The rubber block 12 can reduce the damage caused by the counterweight 11 to the screen plate 7.

[0030] Meanwhile, the driving mechanism includes an annular groove 18 on the rotating plate 2, and several semi-arc grooves 8 arranged in an array on the inner circumferential surface of the annular groove 18. A connecting rod 9 is fixed on the rotating rod 10, and a moving rod 3 is fixed on the connecting rod 9. The end of the moving rod 3 away from the connecting rod 9 is located inside the semi-arc groove 8. When the rotating plate 2 rotates, the moving rod 3 will always be in contact with the rotating plate 2 due to the action of the spring 13. When the rotating plate 2 rotates, the moving rod 3 will enter the semi-arc groove 8 and then move out of the semi-arc groove 8. When the moving rod 3 enters the semi-arc groove 8, the rotating rod 10 will lose the obstruction of the rotating plate 2 and rotate towards the screen plate 7, thereby striking the screen plate 7.

[0031] Furthermore, a rectangular block 16 is fixed on the fixed plate 4, and a stop block 17 is fixed on the rotating column 15. The stop block and the rectangular block 16 cooperate with each other to prevent the rotating rod 10 from continuing to rotate backward, thus limiting the rotation of the rotating rod 10.

[0032] Furthermore, a roller 19 is installed at the end of the moving rod 3. The roller 19 rolls with the inner circumferential surface of the annular groove 18 and the arc-shaped side of the semi-arc groove 8, which helps to reduce the friction between the moving rod 3 and the semi-arc groove 8 and can extend the service life of the moving rod 3 and the semi-arc groove 8.

[0033] Furthermore, the number of semi-circular grooves 8 is the same as the number of sieve plates 7, and the positions of the semi-circular grooves 8 and sieve plates 7 are matched one by one, so that when the moving rod 3 enters the interior of the semi-circular groove 8, the moving rod 3 will drive the rotating rod 10 to rotate and strike the sieve plate 7.

[0034] During operation, the tank of the cleaning device body 1 is first filled with water. PE raw material is then poured into the tank. The motor controls the stirring rod to rotate, which cleans the PE raw material. Subsequently, the drive motor 5 drives the rotating frame 6 to rotate towards the discharge port. The rotating frame 6 drives the screen plate 7 to rotate, thereby scooping out the PE raw material from the water. Due to gravity, the material on the screen plate 7 falls from the screen plate 7 to the discharge port and is discharged. While the rotating frame 6 rotates, the rotating plate 2 rotates along with it. The moving rod 3 and roller 19 move within the annular groove 18. At this time, although the rotating rod 10 is subjected to a downward force from the spring 13, the moving rod 3 and roller 19, in conjunction with the semi-circular groove 8 inside the rotating plate 2, limit the movement of the rotating rod 10, preventing it from being stopped. The rotating rod 10 strikes the screen plate 7. When the semi-circular groove 8 on the rotating plate 2 rotates to the position of the moving rod 3, the moving rod 3 and the roller 19 will quickly enter the interior of the semi-circular groove 8. At this time, the rotating rod 10 will move towards the screen plate 7 under the pull of the spring 13, so that the rubber block 12 strikes the screen plate 7. As the rotating plate 2 rotates, when the moving rod 3 and the roller 19 move out of the interior of the semi-circular groove 8, the moving rod 3 will drive the rotating rod 10 to move away from the screen plate 7. At the same time, the rotating rod 10 will stretch the spring 13. Repeating the above operation, the rotating rod 10 will gradually strike each screen plate 7, which makes it easier to shake the PE raw material adsorbed on the screen plate 7 to the outlet and discharge it, increasing the amount of PE raw material falling off the screen plate 7, thereby improving the cleaning efficiency.

[0035] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A PE raw material cleaning device for the production of polyethylene (PE) pipes, characterized in that, include: The cleaning device body (1) has a rotating frame (6) rotatably connected to it via a rotating shaft. Several sieve plates (7) are fixed in an array on the rotating frame (6). A drive motor (5) is fixed on one side of the cleaning device body (1), and the output end of the drive motor (5) is fixed to the rotating shaft. A fixing plate (4) is fixed on the top of the cleaning device body (1) near the rotating frame (6), and a rotating mechanism is provided on the fixing plate (4). A rotating plate (2) is fixed on the end of the rotating shaft away from the drive motor (5), and a drive mechanism connected to the rotating mechanism is provided on the rotating plate (2).

2. The PE raw material cleaning device for polyethylene (PE) pipe production according to claim 1, characterized in that: The rotating mechanism includes fixed blocks (14) fixed on both sides of the top of the fixed plate (4), a rotating column (15) is provided between the two fixed blocks (14), a rotating rod (10) is fixed on the rotating column (15), the two ends of the rotating column (15) are rotatably connected to the two fixed blocks (14) through bearings, and a counterweight (11) is fixed at the end of the rotating rod (10) away from the rotating column (15), the counterweight (11) facing the screen plate (7).

3. The PE raw material cleaning device for polyethylene (PE) pipe production according to claim 2, characterized in that: A spring (13) is fixed between the fixed plate (4) and the rotating rod (10), and a rubber block (12) is fixed at the bottom of the counterweight (11).

4. The PE raw material cleaning device for polyethylene (PE) pipe production according to claim 2, characterized in that: A rectangular block (16) is fixed on the fixed plate (4), and a stop block (17) is fixed on the rotating column (15).

5. A PE raw material cleaning device for polyethylene (PE) pipe production according to claim 2, characterized in that: The driving mechanism includes an annular groove (18) on a rotating plate (2), and a plurality of semi-arc grooves (8) arranged in an array on the inner circumferential surface of the annular groove (18). A connecting rod (9) is fixed on the rotating rod (10), and a moving rod (3) is fixed on the connecting rod (9). The end of the moving rod (3) away from the connecting rod (9) is located inside the semi-arc groove (8).

6. A PE raw material cleaning device for polyethylene (PE) pipe production according to claim 5, characterized in that: The end of the moving rod (3) is equipped with a roller (19), which rolls in cooperation with the inner circumferential surface of the annular groove (18) and the arc-shaped side of the semi-arc groove (8).

7. A PE raw material cleaning device for polyethylene (PE) pipe production according to claim 5, characterized in that: The number of semi-circular grooves (8) is the same as the number of sieve plates (7), and the positions of the semi-circular grooves (8) match the positions of the sieve plates (7) one by one.

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