Screening mechanism of plastic granulator

Abstract

The utility model relates to the technical field of plastic particle screening, in particular to a screening mechanism of a plastic granulator, which comprises a bottom plate and a screening box, an inclined socket is clamped on one side of the screening box, a small-hole screen plate, a medium-hole screen plate and a large-hole screen plate are respectively clamped on one side of the inclined socket, and two side plates are fixedly connected with one end of the screening box. According to the plastic particle blanking device, the baffle is moved to the position between the small-hole sieve plate and the middle-hole sieve plate, then plastic particles are intercepted by the blocking plate and roll downwards, the blanking speed of the plastic particles is reduced, the time of the plastic particles staying on the small-hole sieve plate is prolonged, and the plastic particles are prevented from falling off from the middle-hole sieve plate. According to the plastic particle screening mechanism, plastic particles can be better screened through the small-hole screening plate, then the plastic particles can be continuously turned over through the two transverse plates on the driven rotating rod, it is ensured that the plastic particles flow and are fully and comprehensively screened, it is avoided that the plastic particles are accumulated at one position all the time, screening work is accelerated, and the production efficiency of the screening mechanism is improved.

Description

Technical Field

[0001] This utility model relates to the field of plastic granule screening technology, specifically a screening mechanism for a plastic granulator. Background Technology

[0002] In the screening process of plastic granules, particles of different sizes can be effectively separated. Through the precise screening of the screening mechanism, plastic granules can be meticulously classified according to their size and shape, thereby meeting different production needs.

[0003] The prior art discloses patent application number "CN202220548941.9", which discloses a plastic impurity removal and screening device, including a frame, a screening box and a collection device disposed on the frame. The screening box is provided with a screening device for screening plastic particles. The screening device includes a screening plate and a vibration mechanism. The screening plate is slidably disposed on the screening box and is used to screen plastic particles. The vibration mechanism is disposed on the screening box and is used to drive the screening plate to move.

[0004] This screening device can only achieve vibration to screen plastic particles. However, in actual use, if too many plastic particles are put in at once and the plastic particles stay on the screening plate for a short time, the screening plate cannot screen the plastic particles completely. This causes the plastic particles to accumulate at the bottom, reducing the screening effect and affecting the production efficiency of the screening work. Utility Model Content

[0005] The purpose of this invention is to provide a screening mechanism for a plastic granulator to solve the problems mentioned in the background art.

[0006] The objective of this utility model can be achieved through the following technical solutions:

[0007] A screening mechanism for a plastic granulator includes a base plate and a screening box. An inclined socket is snapped onto one side of the screening box, and a small-hole screen plate, a medium-hole screen plate, and a large-hole screen plate are snapped onto one side of the inclined socket respectively. Two side plates are fixedly connected to one end of the screening box. A lead screw is rotatably connected inside the two side plates, and an L-shaped plate is threaded onto the outer surface of the lead screw. A baffle for blocking plastic particles is fixedly connected to one side of the L-shaped plate.

[0008] The screening box has a baffle plate fixedly connected inside. Three inclined plates for assisting material feeding are fixedly connected to one side of the screening box. A support plate is fixedly connected to one end of the L-shaped plate. A sprocket is rotatably installed on one side of the support plate. A driven rod is rotatably installed inside the screening box. A horizontal plate for turning plastic granules is connected in an array on the outer surface of the driven rod. A driven sprocket is fixedly installed on the outer surface of the driven rod. A chain is sleeved between the driven sprocket and the sprocket rod.

[0009] Preferably, a feed seat is provided on the upper side of the screening box, a baffle plate is located below the feed seat, three discharge ports are fixedly connected to the lower side of the screening box, two rotating blocks for fixing tilt sockets are rotatably connected to one side of the screening box, rubber pads are fixedly provided on one side of the two tilt sockets, the tilt sockets are located inside the screening box, and three inclined plates are located below the tilt sockets.

[0010] Preferably, a top block one and a top block two are fixedly provided on the upper side of the base plate. A telescopic seat is slidably connected to the upper side of both top blocks one and top blocks two. One side of the two telescopic seats is tightly connected to the screening box. A connecting spring is connected in an array between top block one and the telescopic seat. A connecting spring is connected in an array between top block two and the telescopic seat. A U-shaped seat is fixedly connected to one end of the screening box. A roller is rotatably connected inside the U-shaped seat.

[0011] Preferably, an electric push rod is fixedly provided on the upper side of the base plate, and a fixing block is fixedly installed on the upper side of the electric push rod. A cam shaft is rotatably connected to one side of the fixing block, and the cam shaft and the roller are in contact with each other. A servo motor is fixedly connected to the other side of the fixing block, and the output shaft of the servo motor is fastened to the cam shaft.

[0012] Preferably, the small-hole sieve plate, medium-hole sieve plate, and large-hole sieve plate are arranged at an incline in sequence and filter plastic particles in sequence. A servo motor is fixedly connected to the other side of the support plate. The output shaft of the servo motor is fastened to the sprocket rod. Two partition plates are fixedly connected inside the screening box.

[0013] Preferably, a servo motor is fixedly connected to one side of the side plate, the output shaft of the servo motor is fastened to the lead screw, and a connecting rod is fixedly installed inside the two side plates, with the outer surface of the connecting rod slidingly connected to the inside of the L-shaped plate.

[0014] The beneficial effects of this utility model are:

[0015] 1. This utility model moves the baffle between the small-hole screen plate and the medium-hole screen plate, and then the plastic particles are intercepted by the baffle plate and roll downwards. This reduces the feeding rate of the plastic particles, prolongs the time that the plastic particles stay on the small-hole screen plate, and allows the small-hole screen plate to better screen the plastic particles. The two sets of horizontal plates on the driven rotating rod can continuously turn the plastic particles, ensuring that the plastic particles flow and are fully and comprehensively screened, avoiding the plastic from accumulating in one place, speeding up the screening process, and improving the production efficiency of the screening mechanism.

[0016] 2. This utility model uses an L-shaped plate to move a baffle between a medium-sized sieve plate and a large-sized sieve plate. The plastic particles, after one screening, continue to roll downwards, allowing the medium-sized sieve plate to screen the corresponding sizes. Then, the L-shaped plate moves the baffle to the bottom of the large-sized sieve plate for further screening. This segmented screening allows for finer screening of the plastic particles, improving the screening effect. Finally, the plastic particles screened by the three sieve plates fall into the three corresponding discharge ports, completing the screening process. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a utility model Figure 1 Schematic diagram of small-hole sieve plate, medium-hole sieve plate and large-hole sieve plate;

[0020] Figure 3 This is a utility model Figure 2 A schematic diagram of the driven rotating rod and the cross plate in the middle;

[0021] Figure 4 This is a utility model Figure 1 Schematic diagram of the structure of the middle roller and cam shaft;

[0022] Figure 5 This is a utility model Figure 2 Schematic diagram of the intermediate screening box and baffle plate;

[0023] The attached figures are labeled as follows:

[0024] 1. Base plate; 2. Top block one; 3. Telescopic seat; 4. Connecting spring; 5. Screening box; 6. Inclined socket; 7. Small hole screen plate; 8. Medium hole screen plate; 9. Large hole screen plate; 10. Side plate; 11. Lead screw; 12. L-shaped plate; 13. Baffle; 14. Connecting rod; 15. Discharge port; 16. Rotating block; 17. Rubber pad; 18. Electric push rod; 19. Fixed block; 20. Cam shaft; 21. U-shaped seat; 22. Roller; 23. Support plate; 24. Driven rotating rod; 25. Horizontal plate; 26. Sprocket rotating rod; 27. Driven sprocket; 28. Inclined plate; 29. ​​Feed seat; 30. Barrier plate; 66. Top block two; 88. Divider plate. Detailed Implementation

[0025] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0026] like Figures 1 to 5 As shown, a screening mechanism for a plastic granulator includes a base plate 1 and a screening box 5. An inclined socket 6 is snapped onto one side of the screening box 5. A small-hole screen plate 7, a medium-hole screen plate 8, and a large-hole screen plate 9 are snapped onto one side of the inclined socket 6 respectively. Two side plates 10 are fixedly connected to one end of the screening box 5. A lead screw 11 is rotatably connected inside the two side plates 10. An L-shaped plate 12 is threaded onto the outer surface of the lead screw 11. A baffle 13 for blocking plastic particles is fixedly connected to one side of the L-shaped plate 12. The baffle 13 can be used to block the rolling of plastic particles so as to fully filter the plastic particles.

[0027] A baffle plate 30 is fixedly connected inside the screening box 5. Three inclined plates 28 for assisting material feeding are fixedly connected to one side of the screening box 5. A support plate 23 is fixedly connected to one end of the L-shaped plate 12. A sprocket rod 26 is rotatably installed on one side of the support plate 23. A driven rod 24 is rotatably installed inside the screening box 5. A horizontal plate 25 for turning plastic granules is connected in an array on the outer surface of the driven rod 24. A driven sprocket 27 is fixedly installed on the outer surface of the driven rod 24. A chain is sleeved between the driven sprocket 27 and the sprocket rod 26.

[0028] The upper side of the screening box 5 is provided with a feeding seat 29, and the baffle plate 30 is located below the feeding seat 29. Three discharge ports 15 are fixedly connected to the lower side of the screening box 5. Two rotating blocks 16 for fixing the tilting socket 6 are rotatably connected to one side of the screening box 5. Rubber pads 17 are fixed on one side of each of the two tilting sockets 6. The three screen plates can be driven into the interior of the screening box 5 by the snap-fit ​​of the tilting socket 6. The three screen plates form a screening mechanism. Then, by rotating the two rotating blocks 16, the rubber pads 17 at the two rotating blocks 16 can be squeezed and positioned at the tilting socket 6 to ensure the stability of the tilting socket 6 during installation. The tilting socket 6 is located inside the screening box 5. Three inclined plates 28 are located below the tilting socket 6. The three inclined plates 28 can speed up the feeding of plastic particles and increase the feeding rate.

[0029] Top block 1 2 and top block 2 66 are fixedly installed on the upper side of the base plate 1. Telescopic seats 3 are slidably connected to the upper side of top block 1 2 and top block 2 66. One side of the two telescopic seats 3 is fastened to the screening box 5. Connecting springs 4 are connected in an array between top block 1 2 and telescopic seats 3, and connecting springs 4 are connected in an array between top block 2 66 and telescopic seats 3. The elastic force of the two sets of connecting springs 4 can make the two telescopic seats 3 drive the screening box 5 to shake up and down, so as to speed up the rolling of plastic particles and facilitate the screening work. A U-shaped seat 21 is fixedly connected to one end of the screening box 5. Rollers 22 are rotatably connected inside the U-shaped seat 21.

[0030] An electric push rod 18 is fixedly installed on the upper side of the base plate 1. The electric push rod 18 is model HB-DJ801. A fixing block 19 is fixedly installed on the upper side of the electric push rod 18. A cam shaft 20 is rotatably connected to one side of the fixing block 19. The cam shaft 20 and the roller 22 are in contact with each other. A servo motor is fixedly connected to the other side of the fixing block 19. The output shaft of the servo motor is fastened to the cam shaft 20.

[0031] The small-hole sieve plate 7, medium-hole sieve plate 8, and large-hole sieve plate 9 are arranged at an incline in sequence and filter plastic particles in sequence. A servo motor is fixedly connected to the other side of the support plate 23. The output shaft of the servo motor is fastened to the sprocket rod 26. Two partition plates 88 are fixedly connected inside the screening box 5. The two partition plates 88 can be used to separate and seal the lower part of the small-hole sieve plate 7, medium-hole sieve plate 8, and large-hole sieve plate 9 so that the screened plastic particles can be collected separately and are convenient to use.

[0032] A servo motor is fixedly connected to one side of the side plate 10. The servo motor is model SMBL-60P. The output shaft of the servo motor is fastened to the lead screw 11. A connecting rod 14 is fixedly installed inside the two side plates 10. The outer surface of the connecting rod 14 is slidably connected to the inside of the L-shaped plate 12. The connecting rod 14 can be used to limit and guide the movement trajectory of the L-shaped plate 12, so that the L-shaped plate 12 drives the baffle 13 to move back and forth smoothly.

[0033] The working principle of the screening mechanism of the plastic granulator provided by this utility model is as follows:

[0034] By starting the servo motor, the output shaft of the servo motor drives the lead screw 11 to rotate. This causes the L-shaped plate 12 on the lead screw 11 to move and adjust, thereby moving the baffle 13 between the small hole screen plate 7 and the medium hole screen plate 8. Then, plastic granules are fed into the feed seat 29. At this time, the plastic granules are intercepted by the baffle plate 30 and roll downwards, which reduces the feeding rate of the plastic granules and prolongs the time that the plastic granules stay on the small hole screen plate 7, allowing the small hole screen plate 7 to better screen the plastic granules. Next, the second servo motor is started, and the output shaft of the servo motor drives the sprocket rod 26 to rotate. In conjunction with the driven sprocket 27 on the driven rod 24 and the chain, the sprocket rod 26 can drive the driven rod 24 to rotate. This allows the two sets of horizontal plates 25 on the driven rod 24 to continuously turn the plastic granules, ensuring that the plastic granules flow and are fully and comprehensively screened, avoiding the plastic from accumulating in one place, speeding up the screening process, and improving the production efficiency of the screening mechanism.

[0035] By moving the L-shaped plate 12 to the baffle 13 between the medium-hole screen plate 8 and the large-hole screen plate 9, the plastic particles that have been screened once will continue to roll downwards, allowing the medium-hole screen plate 8 to screen plastic particles of the corresponding size. Then, the L-shaped plate 12 moves the baffle 13 to the bottom of the large-hole screen plate 9, allowing the large-hole screen plate 9 to further screen the plastic particles. Segmented screening can finely screen plastic particles and improve the screening effect of the screening mechanism. Then, the plastic particles screened by the three screen plates will fall into the corresponding three discharge ports 15, completing the screening work. Then, the output shaft of the third servo motor drives the cam shaft 20 to rotate, releasing the limit on the screening box 5. Then, the electric push rod 18 drives the cam shaft 20 to move downwards. In this way, the two telescopic seats 3 with connecting springs 4 can make the screening box 5 swing up and down to speed up the screening progress of plastic particles.

[0036] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A screening mechanism for a plastic granulator, comprising a base plate (1) and a screening box (5), characterized in that: The screening box (5) is fitted with an inclined socket (6) on one side. The inclined socket (6) is fitted with a small hole screen plate (7), a medium hole screen plate (8) and a large hole screen plate (9) on one side respectively. Two side plates (10) are fixedly connected to one end of the screening box (5). The inside of the two side plates (10) is rotatably connected with a lead screw (11). The outer surface of the lead screw (11) is threaded with an L-shaped plate (12). A baffle (13) for blocking plastic particles is fixedly connected to one side of the L-shaped plate (12). The screening box (5) is fixedly connected to a baffle plate (30). Three inclined plates (28) for assisting material feeding are fixedly connected to one side of the screening box (5). One end of the L-shaped plate (12) is fixedly connected to a support plate (23). A sprocket rod (26) is rotatably installed on one side of the support plate (23). A driven rod (24) is rotatably installed inside the screening box (5). A horizontal plate (25) for turning plastic particles is arrayed on the outer surface of the driven rod (24). A driven sprocket (27) is fixedly installed on the outer surface of the driven rod (24). A chain is sleeved between the driven sprocket (27) and the sprocket rod (26).

2. The screening mechanism of a plastic granulator according to claim 1, characterized in that, The upper side of the screening box (5) is provided with a feeding seat (29), and the baffle plate (30) is located below the feeding seat (29). Three discharge ports (15) are fixedly connected to the lower side of the screening box (5). Two rotating blocks (16) for fixing the tilt socket (6) are rotatably connected to one side of the screening box (5). Rubber pads (17) are fixedly provided on one side of each of the two tilt sockets (6). The tilt sockets (6) are located inside the screening box (5), and three inclined plates (28) are located below the tilt sockets (6).

3. The screening mechanism of a plastic granulator according to claim 1, characterized in that, The upper side of the base plate (1) is fixedly provided with top block one (2) and top block two (66). The upper side of top block one (2) and top block two (66) are slidably connected with telescopic seats (3). One side of the two telescopic seats (3) is tightly connected to the screening box (5). Connecting springs (4) are connected in an array between top block one (2) and telescopic seats (3). Connecting springs (4) are connected in an array between top block two (66) and telescopic seats (3). One end of the screening box (5) is fixedly connected with a U-shaped seat (21). Rollers (22) are rotatably connected inside the U-shaped seat (21).

4. The screening mechanism of a plastic granulator according to claim 3, characterized in that, An electric push rod (18) is fixedly installed on the upper side of the base plate (1). A fixing block (19) is fixedly installed on the upper side of the electric push rod (18). A cam shaft (20) is rotatably connected to one side of the fixing block (19). The cam shaft (20) and the roller (22) are in contact with each other. A servo motor is fixedly connected to the other side of the fixing block (19). The output shaft of the servo motor is fastened to the cam shaft (20).

5. The screening mechanism of a plastic granulator according to claim 1, characterized in that, The small-hole sieve plate (7), medium-hole sieve plate (8) and large-hole sieve plate (9) are arranged in an inclined manner and filter plastic particles in sequence. A servo motor is fixedly connected to the other side of the support plate (23). The output shaft of the servo motor is fastened to the sprocket rod (26). Two partition plates (88) are fixedly connected inside the screening box (5).

6. The screening mechanism of a plastic granulator according to claim 1, characterized in that, A servo motor is fixedly connected to one side of the side plate (10), and the output shaft of the servo motor is fastened to the lead screw (11). A connecting rod (14) is fixedly installed inside the two side plates (10), and the outer surface of the connecting rod (14) is slidably connected to the inside of the L-shaped plate (12).

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