Plastic particle screening device

Abstract

A plastic particle screening device is used for solving the problems that in the actual use process of some plastic particle screening devices mentioned in the background technology, manual feeding is needed, and time and labor are wasted; and a lot of materials are frequently fed at a time during manual feeding, so that the technical problems that material blockage is easily caused and the discharging effect is relatively poor are solved. Comprising a screening box, and a vibrating screen is arranged in the screening box; rotating auxiliary blocks are arranged on the two sides in the screening box, sliding grooves are formed in the auxiliary blocks, a bearing plate is slidably connected into the two sliding grooves, and a plurality of anti-blocking blocks are arranged on the bearing plate; a discharging box is arranged on the outer side of the screening box, a material receiving box is arranged below the discharging box, and the material receiving box can stretch into or stretch out of the screening box above the screen and can rotate towards the screen. A transmission assembly is arranged on the outer side of the screening box and connected with the material receiving box and the auxiliary block.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic particle screening, in particular to a plastic particle screening device. Background Art

[0002] At present, the plastic raw materials in strip shape after drawing and cooling directly fall into a granulator, and the strip-shaped plastic raw materials are cut into particles by the granulator and then bagged for transportation. After the strip-shaped plastic raw materials fall into the granulator, the sizes of the cut finished products are uneven, and the granular plastic raw materials with different sizes are unevenly heated. Therefore, before the plastic particles are produced and processed, the plastic particles need to be screened to make the sizes of the plastic particles uniform.

[0003] The prior art, such as the utility model patent document with the authorization announcement number of "CN220638574" and the patent name of "Plastic Particle Screening Machine", discloses a plastic particle screening machine. The plastic particle screening machine includes a base, and a plurality of support springs are fixedly installed on the top of the base. The plurality of support springs are distributed in a rectangular shape. An outer shell is fixedly installed between the tops of the plurality of support springs. The outer shell is rectangular, and the top and the left side of the outer shell are both open. Inside the outer shell, a primary screen, a secondary screen, a tertiary screen and a bottom plate are fixedly installed in sequence from top to bottom. The apertures of the primary screen, the secondary screen and the tertiary screen become smaller in sequence. A primary discharge hopper is fixedly installed on the left side of the primary screen, a secondary discharge hopper is fixedly installed on the left side of the secondary screen, and a tertiary discharge hopper is fixedly installed on the left side of the tertiary screen.

[0004] During the actual use of the above patent, manual feeding is required, which is time-consuming and laborious; moreover, a large amount of materials are often fed at one time during manual feeding, and this method is prone to material blockage and the discharging effect is poor. Summary of the Utility Model

[0005] Aiming at the deficiencies in the prior art, the utility model provides a plastic particle screening device, which is used to solve the technical problems that in the actual use process of some plastic particle screening devices mentioned in the background art, manual feeding is required, which is time-consuming and laborious; moreover, a large amount of materials are often fed at one time during manual feeding, and this method is prone to material blockage and the discharging effect is poor.

[0006] The above technical purpose of the utility model is achieved through the following technical solutions:

[0007] A plastic particle screening device includes a screening box, and a vibrating screen is arranged inside the screening box; auxiliary blocks that rotate are arranged on both sides inside the screening box, chutes are formed inside each of the auxiliary blocks, and a receiving plate is slidably connected in the two chutes. A plurality of anti-blocking blocks are arranged on the receiving plate. The anti-blocking blocks are arranged below the screen for contacting the screen and cleaning the screen; a feeding box is arranged outside the screening box, and a receiving box is arranged below the feeding box. The receiving box can extend into or out of the screening box above the screen and can rotate towards the screen; a transmission component is arranged outside the screening box. The transmission component is connected to the receiving box and the auxiliary blocks, and is used to drive the receiving box to extend into or out of the screening box, and at the same time drive the auxiliary blocks to rotate, so as to pour the plastic particles falling on the receiving plate into the screening box.

[0008] Working principle:

[0009] During the use process, start the feeding box, the material enters the receiving box, and then the transmission component drives the receiving box to move into the screening box; when the receiving box is placed inside the screening box, the screening box rotates towards the screen, and at this time the material falls out of the receiving box and falls onto the screen; at this time, start the vibration of the screen to vibrate and screen the material on the screen.

[0010] Since the screen may be blocked during the screening process, at this time, drive the receiving plate to move vertically upward and make the anti-blocking block abut against the screen. Since the screen is always in a vibrating state, the anti-blocking block arranged below the screen continuously impacts the screen, so as to strike out the material blocked in the screen; the material after being screened by the screen falls onto the receiving plate, driving the receiving plate to move vertically downward away from the screen. Since the transmission component drives the receiving box to move and drives the auxiliary block to rotate at the same time, the rotation of the auxiliary block drives the receiving plate to rotate, so that the material on the receiving plate falls into the screening box to collect the material.

[0011] Start the transmission component to drive the receiving box to repeatedly extend into or out of the screening box, and intermittently transport the material into the screening box to screen the material.

[0012] Beneficial effects:

[0013] In this solution, by arranging the receiving plate and the anti-blocking blocks, the vibrating screen can be continuously impacted, so as to strike out the material blocked in the screen, realize the cleaning effect on the screen, and improve the screening efficiency of the screen.

[0014] By setting a transmission component, a material receiving box, and an auxiliary block, starting the transmission component drives the material receiving box to extend into or out of the screening box after being filled with materials. At the same time, it drives the auxiliary block and the receiving plate to rotate, and the rotation of the receiving plate dumps the materials on the receiving plate, realizing the cleaning of the surface of the receiving plate; this method realizes the batch transportation of materials, greatly reduces the situation of material blockage, improves the material screening effect, and does not require manual feeding, reducing the labor intensity of the operator; this kind of linkage method saves power resources.

[0015] By setting the receiving plate to be vertically movable, before starting the transmission component, the receiving plate moves vertically downward away from the screen to prevent the screen from blocking the rotation of the receiving plate and causing damage to the screen and the receiving plate. Brief Description of the Drawings

[0016] Figure 1 It is a schematic structural diagram of an embodiment of the present invention;

[0017] Figure 2 is Figure 1 an enlarged assembly schematic diagram of the locked state of the auxiliary block and the receiving plate in

[0018] Figure 3 is Figure 1 an assembly schematic diagram of the connection between the vibrating plate on the side of the screening box and the vibrator, the second door panel, and the third door panel in

[0019] In the above-mentioned drawings: screening box 1, screen 2, auxiliary block 3, chute 4, receiving plate 5, anti-blocking block 6, blanking box 7, material receiving box 8, mounting seat 9, motor 10, rotating shaft 11, slider 12, connecting block 13, empty slot 14, spring 15, plug-in block 16, plug-in slot 17, first door panel 18, auxiliary plate 19, air rod 20, inclined block 21, circular slot 22, cylinder 23, vibrator 24, working slot 25, support spring 26, vibrating plate 27, second door panel 28, third door panel 29. Detailed Embodiment

[0020] The technical solutions in the present invention will be further described below with reference to the drawings and embodiments.

[0021] Embodiment:

[0022] As Figure 1As shown in the figure, a plastic particle screening device includes a screening box 1, and a vibrating screen 2 is arranged inside the screening box 1; the screen 2 divides the screening box 1 into upper and lower spaces, and rotating auxiliary blocks 3 are arranged on both sides inside the screening box 1. Chutes 4 are opened inside the auxiliary blocks 3, and a receiving plate 5 is slidably connected in the two chutes 4. A number of anti-blocking blocks 6 are arranged on the receiving plate 5. The anti-blocking blocks 6 are arranged below the screen 2 for contacting the screen 2 and cleaning the screen 2; a feeding box 7 is arranged outside the screening box 1, and the feeding box 7 contains materials to be screened. A receiving box 8 is arranged below the feeding box 7. A through hole is opened on the side wall of the screening box 1. The receiving box 8 can extend into or out of the upper space of the screening box 1 above the screen 2 through the through hole, and the receiving box 8 is always arranged in the through hole to support the receiving box 8. The receiving box 8 can rotate towards the screen 2; a transmission component is arranged outside the screening box 1. The transmission component is connected to the receiving box 8 and the auxiliary block 3 for driving the receiving box 8 to extend into or out of the screening box 1, and at the same time driving the auxiliary block 3 to rotate, so as to pour the plastic particles falling on the receiving plate 5 into the lower space of the screening box 1.

[0023] In this solution, by setting the receiving plate 5 and the anti-blocking blocks 6, the vibrating screen 2 can be continuously impacted, so as to strike out the materials blocked in the screen 2, realize the cleaning effect on the screen 2, and improve the screening efficiency of the screen 2;

[0024] By setting the transmission component, the receiving box 8 and the auxiliary block 3, starting the transmission component drives the receiving box 8 to extend into or out of the screening box 1, and at the same time drives the auxiliary block 3 and the receiving plate 5 to rotate. The rotation of the receiving plate 5 dumps the materials on the receiving plate 5, realizing the cleaning of the surface of the receiving plate 5; this method realizes the batch transportation of materials, greatly reduces the situation of material blockage, improves the material screening effect, and does not require manual feeding, reducing the labor intensity of the operator; this kind of linkage method saves power resources.

[0025] By setting the receiving plate 5 to be vertically movable, before starting the transmission component, the receiving plate 5 moves vertically downward away from the screen 2 to prevent the screen 2 from blocking the rotation of the receiving plate 5 and causing damage to the screen 2 and the receiving plate 5.

[0026] Such as Figure 1As shown, an installation seat 9 is fixedly arranged on the outer side of the screening box 1. A support rod is fixedly arranged on the installation seat 9, and the top of the support rod is fixedly connected to the blanking box 7. The transmission assembly includes a motor 10 and a rotating shaft 11. The motor 10 is arranged on the installation seat 9, and the rotating shaft 11 is connected to the output end of the motor 10. The rotating shaft 11 is divided into two parts. The end of the rotating shaft 11 is a smooth rod section and rotatably passes through the side wall of the screening box 1 and is fixedly connected to one of the auxiliary blocks 3. The other part of the rotating shaft 11 is a threaded rod section, and a slider 12 is threadedly connected to the threaded rod section. A connecting block 13 is fixedly arranged on the top of the slider 12, and the connecting block 13 is rotatably connected to the material receiving box 8. The connecting block 13 and the material receiving box 8 are rotated through hinge connection, which belongs to the prior art and will not be elaborated here. When the connection part between the material receiving box 8 and the connecting block 13 moves to the inner wall of the screening box 1, the screening box 1 rotates towards the screen 2 under the action of gravity. At this time, due to the tilting of the screening box 1, the materials are poured out. The output end of the motor 10 drives the slider 12, the connecting block 13 and the material receiving box 8 to extend into or out of the screening box 1. This specific transmission method is mechanized and automated, which is convenient for operation.

[0027] As Figure 1 shown, circular grooves 22 are opened on both sides of the screening box 1, and the two auxiliary blocks 3 are rotatably arranged in the two circular grooves 22; two installation grooves are also opened on both sides inside the screening box 1. The two installation grooves are arranged below the circular grooves 22, and two air cylinders 23 are fixedly arranged in the two installation grooves. The telescopic ends of the two air cylinders 23 are both vertically upward and are respectively in contact with the two bearing plates 5. The transmission assembly drives the auxiliary block 3 to rotate in the circular groove 22; after the telescopic end of the air cylinder 23 contacts the bearing plate 5, it drives the bearing plate 5 to approach or move away from the bearing plate 5 in the sliding groove 4. This specific transmission method is mechanized and automated, which is convenient for operation.

[0028] As Figure 1 and Figure 2 shown, empty grooves 14 are opened at both ends of the bearing plate 5. Springs 15 are fixedly arranged on the inner walls of the empty grooves 14, and the other ends of the springs 15 are fixedly provided with insertion blocks 16. Insertion slots 17 are opened on the auxiliary blocks 3. The insertion blocks 16 are used to be inserted into the insertion slots 17 as the bearing plate 5 moves, so as to relatively lock the bearing plate 5 and the auxiliary block 3; the top end of the insertion block 16 is arranged as an inclined surface towards one side of the insertion slot 17, and the height of the inclined surface is the same as the width of the insertion slot 17.

[0029] When the receiving plate 5 moves vertically downward, the plug-in block 16 is separated from the contact with the side wall of the slide groove 4. At this time, the spring 15 pushes the plug-in block 16 to move toward the plug-in groove 17, so that the plug-in block 16 is plugged into the plug-in groove 17, thereby locking the receiving plate 5 and the auxiliary block 3 relatively; when the telescopic end of the cylinder 23 contacts the supporting plate 5 and drives the receiving plate 5 to move vertically upward, the inclined surface of the plug-in block 16 contacts the side wall of the plug-in groove 17. At this time, the plug-in block 16 is squeezed, and the spring 15 contracts to drive the plug-in block 16 to move toward the empty groove 14, thereby releasing the lock between the receiving plate 5 and the auxiliary block 3. This kind of plug-in block 16 realizes locking and unlocking with the auxiliary block 3 by following the movement of the receiving plate 5, which saves manual operation and is simple and convenient to operate.

[0030] like Figure 1 As shown, the top of the material receiving box 8 is open, and the discharge port of the discharge box 7 is toward the top opening of the material receiving box 8; the side of the material receiving box 8 facing away from the motor 10 is provided with a first door panel 18 which can slide vertically, and a sliding groove is provided on the material receiving box 8, and the first door panel 18 is vertically slid in the sliding groove, and a gas rod 20 is fixedly provided on the side wall of the material receiving box 8, and an auxiliary plate 19 is fixedly provided on the top of the first door panel 18, and the telescopic end of the gas rod 20 is fixedly connected to the auxiliary plate 19 to drive the auxiliary plate 19 and the first door panel 18 to slide in the sliding groove. Start the gas rod 20, and the telescopic end of the gas rod 20 drives the auxiliary plate 19 and the first door panel 18 to move vertically, thereby realizing the opening and closing of the first door panel 18. When the receiving box 8 extends out of the screening box 1 to receive the material, the first door panel 18 is in a closed state to prevent the material from flowing out of the receiving box 8; when the receiving box 8 extends into the screening box 1 to dump, the first door panel 18 is in an open state, so that the material can flow out along the inclined direction of the receiving box 8. This method is mechanized and automated, and is easy to operate.

[0031] like Figure 1 As shown, a tilting block 21 is fixed inside the screening box 1, and the tilting block 21 is arranged in the upper space of the screening box 1 and below the material receiving box 8. The setting of the tilting block 21 limits the tilting angle of the material receiving box 8, preventing the material receiving box 8 from contacting the screen 2 after rotating, thereby damaging the screen 2. Figure 3As shown in the figure, a vibrator 24 is fixedly installed on the outer side of the screening box 1. The vibrator 24 is a small-sized attached vibrator. Working grooves 25 are opened on both sides inside the screening box 1, and the sieve mesh 2 is vertically slidably arranged in the working grooves 25; on the top and bottom surfaces of both sides of the sieve mesh 2, support springs 26 are fixedly installed, and the other ends of the support springs 26 are fixedly connected to the inner walls of the working grooves 25. Elastic partition cloths are fixedly installed on the top and bottom surfaces of the sieve mesh 2, and the other ends of the partition cloths are fixedly connected to the inner walls of the working grooves 25. The support springs 26 are arranged inside the partition cloths. The partition cloths are provided to prevent material particles from falling into the working grooves 25 and affecting the vibration of the sieve mesh 2; a vibrating plate 27 is fixedly installed on one side of the sieve mesh 2. The vibrating plate 27 passes through the screening box 1, and the output end of the vibrator 24 is connected to the vibrating plate 27. Starting the vibrator 24 drives the vibrating plate 27 and the sieve mesh 2 to vibrate up and down. The setting of the support springs 26 plays a buffering role in the movement of the sieve mesh 2. A second door panel 28 and a third door panel 29 are also provided on the screening box 1. The second door panel 28 and the third door panel 29 are both hinged to the screening box 1. This kind of hinged method belongs to the prior art and will not be elaborated here; the second door panel 28 and the third door panel 29 are on the same side as the vibrator 24. The second door panel 28 faces the upper space of the screening box 1, and the third door panel 29 faces the lower space of the screening box 1. Opening the second door panel 28 is used to collect and process the residual material particles on the sieve mesh 2; opening the third door panel 29 is used to collect and process the screened material particles.

[0032] Working principle:

[0033] During the use process, start the motor 10. The output end of the motor 10 drives the rotating shaft 11 to rotate. The rotation of the rotating shaft 11 drives the slider 12 to move towards the feeding box 7. At this time, the discharge port of the feeding box 7 is vertically opposite to the receiving box 8. The material enters the receiving box 8 from the discharge port of the feeding box 7. When a certain amount of material is received, start the motor 10 again. The motor 10 drives the receiving box 8 to move towards the screening box 1 and extend into the screening box 1. When the connection between the receiving box 8 and the connecting block 13 moves into the screening box 1, the receiving box 8 rotates towards the sieve mesh 2 under the action of gravity, and the bottom of the receiving box 8 fits against the inclined block 21; at this time, start the air rod 20. The telescopic end of the air rod 20 drives the auxiliary plate 19 and the first door panel 18 to move upward, opening the first door panel 18, so that the material flows out from below the first door panel 18 and flows towards the sieve mesh 2;

[0034] At the same time, start the vibrator 24. The output end of the vibrator 24 drives the vibrating plate 27 and the sieve mesh 2 to move up and down, vibrating and screening the material on the sieve mesh 2. Part of the material passing through the sieve mesh 2 falls onto the receiving plate 5, and part falls into the lower space of the screening box 1;

[0035] When the motor 10 is running, the output end of the motor 10 also drives the auxiliary block 3 to rotate, and the rotation of the auxiliary block 3 drives the receiving plate 5 to rotate, thereby turning over the receiving plate 5, and the material on the receiving plate 5 falls into the lower space of the screening box 1, and the surface of the receiving plate 5 is cleaned;

[0036] When the receiving box 8 is receiving the material, the motor 10 stops running and the cylinder 23 is started. The telescopic end of the cylinder 23 abuts against the receiving plate 5 and drives the receiving plate 5 and the anti-blocking block 6 to move vertically upward. At this time, the inclined surface of the plug-in block 16 contacts the side wall of the plug-in slot 17. At this time, the plug-in block 16 is squeezed, and the spring 15 contracts to drive the plug-in block 16 to move toward the empty slot 14, so that the lock between the receiving plate 5 and the auxiliary block 3 is released. The telescopic end of the cylinder 23 moves vertically upward to drive the anti-blocking block 6 to contact the lower surface of the screen 2. The screen 2 continuously collides with the anti-blocking block 6 during the vibration process, thereby The material particles mixed in the screen 2 are knocked out; before the motor 10 runs, the cylinder 23 is started, and the telescopic end of the cylinder 23 moves vertically downward. Since the anti-blocking block 6 and the receiving plate 5 have a certain weight, the receiving plate 5 can slide down in the slide groove 4 under the action of gravity. In this process, the plug-in block 16 is separated from the abutment with the side wall of the slide groove 4. At this time, the spring 15 pushes the plug-in block 16 to move toward the plug-in groove 17, so that the plug-in block 16 is plugged into the plug-in groove 17, so that the receiving plate 5 and the auxiliary block 3 are relatively locked, so that the receiving plate 5 can rotate with the auxiliary block 3;

[0037] When the screening of the batch of materials is completed, the gas rod 20 is started again, and the telescopic end of the gas rod 20 drives the first door panel 18 to move downward, and the first door panel 18 is closed; then the motor 10 is started, and the output end of the motor 10 drives the slider 12 to move toward the discharge box 7. At this time, under the pull of the slider 12, the receiving box 8 rotates and is flush with the connecting block 13, and follows the movement of the slider 12 to extend out of the screening box 1 to receive the next batch of materials, and the cycle is repeated.

[0038] Finally, the second door panel 28 is opened to collect and process the material particles remaining on the screen 2; the third door panel 29 is opened to collect and process the material particles after screening, and the whole operation is completed.

[0039] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A plastic particle screening device, characterized in that: The invention comprises a screening box (1), wherein a vibrating screen (2) is arranged in the screening box (1); rotating auxiliary blocks (3) are arranged on both sides of the screening box (1), and each of the auxiliary blocks (3) has a slide groove (4); a receiving plate (5) is slidably connected in the two slide grooves (4), and a plurality of anti-blocking blocks (6) are arranged on the receiving plate (5); the anti-blocking blocks (6) are arranged below the screen (2) for contacting with the screen (2) and for cleaning the screen (2); the outer side of the screening box (1) is provided with a lower A material box (7), a material receiving box (8) is provided below the material box (7), and the material receiving box (8) can extend into or extend out of the screening box (1) above the screen (2) and can rotate toward the screen (2); a transmission assembly is provided on the outside of the screening box (1), and the transmission assembly is connected to the material receiving box (8) and the auxiliary block (3), and is used to drive the material receiving box (8) to extend into or extend out of the screening box (1), and at the same time drive the auxiliary block (3) to rotate, so as to dump the plastic particles dropped on the receiving plate (5) into the screening box (1).

2. A plastic particle screening device according to claim 1, characterized in that: A mounting seat (9) is fixedly provided on the outside of the screening box (1), and the transmission assembly comprises a motor (10) and a rotating shaft (11). The motor (10) is arranged on the mounting seat (9), and the rotating shaft (11) is connected to the output end of the motor (10). The rotating shaft (11) is divided into two parts. The end of the rotating shaft (11) is a smooth round rod section, which is rotated to pass through the side wall of the screening box (1) and is fixedly connected to one of the auxiliary blocks (3). The other part of the rotating shaft (11) is a threaded rod section, and a slider (12) is threadedly connected to the threaded rod section. A connecting block (13) is fixedly provided on the top of the slider (12), and the connecting block (13) is rotatably connected to the material receiving box (8).

3. A plastic particle screening device according to claim 1, characterized in that: Circular grooves (22) are provided on both sides of the screening box (1), and the two auxiliary blocks (3) are rotatably arranged in the two circular grooves (22); two cylinders (23) are also provided on both sides of the screening box (1), and the telescopic ends of the two cylinders (23) are vertically upward and respectively contact the two receiving plates (5).

4. A plastic particle screening device according to claim 3, characterized in that: Both ends of the receiving plate (5) are provided with a slot (14), the inner wall of the slot (14) is fixedly provided with a spring (15), the other end of the spring (15) is fixedly provided with a plug-in block (16), the auxiliary block (3) is provided with a plug-in slot (17), the plug-in block (16) is used to be plugged into the plug-in slot (17) as the receiving plate (5) moves, so that the receiving plate (5) and the auxiliary block (3) are relatively locked; the top end of the plug-in block (16) is arranged as an inclined surface facing the plug-in slot (17), and the height of the inclined surface is consistent with the width of the plug-in slot (17).

5. A plastic particle screening device according to claim 1, characterized in that: The top of the material receiving box (8) is open, and the discharge port of the material discharge box (7) faces the top opening of the material receiving box (8); a first door panel (18) which can slide vertically is provided on the side of the material receiving box (8) away from the motor (10), a gas rod (20) is fixedly provided on the side wall of the material receiving box (8), an auxiliary plate (19) is fixedly provided on the top of the first door panel (18), and the telescopic end of the gas rod (20) is fixedly connected to the auxiliary plate (19) to drive the auxiliary plate (19) and the first door panel (18) to slide upward to discharge the material receiving box (8).

6. A plastic particle screening device according to claim 5, characterized in that: A tilting block (21) is fixedly arranged on the inner side of the screening box (1), and the tilting block (21) is arranged below the material receiving box (8).

7. A plastic particle screening device according to claim 1, characterized in that: A vibrator (24) is provided on the outside of the screening box (1); working grooves (25) are provided on both sides of the inside of the screening box (1); the screen (2) is vertically slidably arranged in the working grooves (25); support springs (26) are fixedly provided on the top and bottom surfaces of both sides of the screen (2); the other end of the support spring (26) is fixedly connected to the inner wall of the working groove (25); a vibration plate (27) is fixedly provided on one side of the screen (2); the vibration plate (27) passes through the screening box (1); and the output end of the vibrator (24) is connected to the vibration plate (27).

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