Plastic particle screening equipment

Abstract

The utility model discloses plastic particle screening equipment, and relates to the technical field of plastic particle processing. The device comprises screening equipment, two guide plates are rotationally connected to the interior of the screening equipment through rotating shafts, first filter screens are fixedly installed in the guide plates, a first discharging pipe is fixedly installed on one side of the screening equipment, and a second discharging pipe is fixedly installed on the side, close to the first discharging pipe, of the screening equipment; shaking assemblies are arranged at the edges of the bottom ends of the two guide plates, an air cooler is fixedly installed on the side, away from the first discharging pipe, of the screening equipment and located at the top of the screening equipment, a cold air pipe penetrating through the screening equipment is fixedly installed at the top end of the air cooler, and a telescopic pipe is fixedly installed on the side, away from the air cooler, of the cold air pipe. According to the plastic particle cooling device, plastic particles are rapidly cooled, the plastic particles are prevented from adhering to one another, blocking is avoided, screening is not affected, and the screening efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic particle processing, and particularly relates to a plastic particle screening device. Background Technique

[0002] There are roughly more than two hundred categories of plastic particles, and thousands of them when subdivided. Dozens of common plastic particles include general plastics, engineering plastics, and special plastics. General plastics include polypropylene, polyethylene, polyvinyl chloride, polystyrene, polyester, polyurethane, etc. Engineering plastics include nylon, polytetrafluoroethylene, polyoxymethylene, polycarbonate, and silicone;

[0003] When plastic particles are produced and discharged, in order to ensure the quality of plastic particles, it is necessary to screen the plastic particles by size. However, the just-produced plastic particles have residual heat and are prone to sticking to each other, causing blockages that affect screening and reducing the screening efficiency. At the same time, the plastic particles are mixed with dust, which affects the quality of the plastic particles. Content of the Utility Model

[0004] In order to solve the problems that plastic particles have residual heat, are prone to sticking to each other, reducing the screening efficiency, and the plastic particles are mixed with dust, affecting the quality of the plastic particles; the purpose of the utility model is to provide a plastic particle screening device.

[0005] To solve the above technical problems, the utility model adopts the following technical scheme: a plastic particle screening device, including a screening device. Inside the screening device, two guide plates are rotatably connected through a rotating shaft. First filter nets are fixedly installed inside the guide plates. A first feeding pipe is fixedly installed on one side of the screening device. A second feeding pipe is fixedly installed on the side of the screening device close to the first feeding pipe. A shaking assembly is provided at the bottom edge of the two guide plates. A cold air blower is fixedly installed on the side of the screening device away from the first feeding pipe and at the top of the screening device. A cold air pipe penetrating the screening device is fixedly installed at the top of the cold air blower. An expansion pipe is fixedly installed on the side of the cold air pipe away from the cold air blower. An inclined cold air hood is fixedly installed on the side of the expansion pipe away from the cold air pipe. A reciprocating lead screw is rotatably penetrated through the top edge of the screening device. A block is movably clamped inside the reciprocating lead screw. A connecting block is rotatably sleeved on one side of the block. The expansion pipe is fixed on the connecting block through a fixing block. A fixing plate is rotatably sleeved at the position of the block on the outside of the reciprocating lead screw. The block rotatably penetrates through the connecting block.

[0006] Preferably, a dust collector is fixedly installed at the top of the screening device. A dust suction pipe penetrating the screening device is fixedly installed on one side of the dust collector. A dust suction hood is fixedly installed at the bottom of the dust suction pipe.

[0007] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0008] 1. The present application realizes rapid cooling of plastic particles, avoids the adhesion of plastic particles to each other, resulting in blockage and affecting screening, and improves the screening efficiency.

[0009] 2. The present application realizes the collection of dust mixed in plastic particles and improves the quality of plastic particles. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0011] Figure 1 It is a schematic structural diagram of the present invention.

[0012] Figure 2 It is a schematic diagram of the internal structure of the screening device in the present invention.

[0013] Figure 3 For the present invention Figure 2 An enlarged view of part A.

[0014] Figure 4 It is a schematic diagram of the connection structure between the telescopic pipe and the cold air hood in the present invention.

[0015] Figure 5 It is a schematic diagram of the connection structure between the reciprocating lead screw and the block in the present invention.

[0016] Figure 6 It is a schematic diagram of the connection structure between the dust suction hood and the second filter screen in the present invention.

[0017] In the figure: 1. Screening device; 11. Guide plate; 12. First filter screen; 13. First feeding pipe; 14. Second feeding pipe; 15. Vibration assembly; 2. Cold air blower; 21. Cold air pipe; 22. Telescopic pipe; 23. Cold air hood; 24. Reciprocating lead screw; 25. Block; 26. Connecting block; 27. Fixed plate; 3. Dust collector; 31. Dust suction pipe; 32. Dust suction hood; 4. Rotating rod; 41. Strip-shaped block; 42. Square block; 43. Rectangular groove; 44. Sector-shaped groove; 45. Guide rod; 46. Fixed seat; 5. Limiting plate; 6. Second filter screen; 7. Collection box. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0019] Embodiment: As Figures 1-6 shown, the present invention provides a plastic particle screening device, including a screening device 1. Inside the screening device 1, two guide plates 11 are rotatably connected through a rotating shaft. Inside the guide plates 11, first filter meshes 12 are fixedly installed. On one side of the screening device 1, a first discharge pipe 13 is fixedly installed. On the side of the screening device 1 close to the first discharge pipe 13, a second discharge pipe 14 is fixedly installed. At the bottom edge of the two guide plates 11, a shaking assembly 15 is provided. On the side of the screening device 1 away from the first discharge pipe 13, a cold air blower 2 is fixedly installed at the top of the screening device 1. At the top of the cold air blower 2, a cold air pipe 21 passing through the screening device 1 is fixedly installed. On the side of the cold air pipe 21 away from the cold air blower 2, a telescopic pipe 22 is fixedly installed. On the side of the telescopic pipe 22 away from the cold air pipe 21, an inclined cold air hood 23 is fixedly installed. At the top edge of the screening device 1, a reciprocating lead screw 24 is rotatably penetrated. Inside the reciprocating lead screw 24, a block 25 is movably clamped. On one side of the block 25, a connecting block 26 is rotatably sleeved. The telescopic pipe 22 is fixed to the connecting block 26 through a fixing block. Outside the reciprocating lead screw 24 at the position of the block 25, a fixing plate 27 is rotatably sleeved. The block 25 rotatably penetrates through the connecting block 26.

[0020] At the top of the screening device 1, a dust collector 3 is fixedly installed. On one side of the dust collector 3, a dust suction pipe 31 passing through the screening device 1 is fixedly installed. At the bottom of the dust suction pipe 31, a dust suction hood 32 is fixedly installed.

[0021] The leakage holes of the first filter mesh 12 located above are larger than those of the first filter mesh 12 located below. The first filter mesh 12 located above filters small plastic particles into the first filter mesh 12 located below, thereby realizing the screening of the size of plastic particles.

[0022] The jitter component 15 includes a rotating rod 4. The rotating rod 4 rotates through the screening device 1. On one side of the rotating rod 4, three strip-shaped blocks 41 are fixedly installed in a circumferentially uniform distribution. An outer movable square block 42 is installed on the strip-shaped block 41. A rectangular groove 43 is formed through the middle of the square block 42. A sector-shaped groove 44 is formed through the middle of the square block 42 at the diagonal of the rectangular groove 43. Guide rods 45 are fixedly installed at both ends of the square block 42. The top end of the upper guide rod 45 is hinged to the guide plate 11. Two fixed seats 46 are symmetrically sleeved on the outer parts of the two guide rods 45. The fixed seats 46 are fixed on the inner wall of the screening device 1. The two rotating rods 4 are connected by a synchronous belt. By setting the rotating rod 4, when the rotating rod 4 rotates, through the transmission connection of the synchronous belt, the two rotating rods 4 are driven to rotate simultaneously. With the rotation of the rotating rod 4, the corresponding strip-shaped block 41 is driven to rotate. Then when one end of the strip-shaped block 41 contacts one side inside the rectangular groove 43, at the same time, the other two strip-shaped blocks 41 contact the sector-shaped groove 44, driving the square block 42 to move. When one end of the strip-shaped block 41 contacts the other side of the inner wall of the rectangular groove 43, the square block 42 is driven to move in the opposite direction, thereby driving the square block 42 and the guide rod 45 to reciprocate up and down in the fixed seat 46. The hinge between the guide plate 11 and the guide rod 45 drives the guide plate 11 to jitter, so that large plastic particles are discharged from the first discharge pipe 13, and small plastic particles fall from the first filter screen 12 to the lower first filter screen 12, and then the small plastic particles are discharged from the second discharge pipe 14 through the jitter component 15. Thus, the screening of large and small plastic particles is realized.

[0023] The length of the first discharge pipe 13 is longer than that of the second discharge pipe 14, which is more convenient for collecting large and small plastic particles and facilitating the placement of corresponding receiving boxes on one side of the screening device 1.

[0024] A limiting plate 5 is fixedly installed on the inner wall of the screening device 1. The connecting block 26 is slidably sleeved on the limiting plate 5. By setting the limiting plate 5, the connecting block 26 moves more stably.

[0025] A second filter screen 6 is fixedly installed at the bottom end of the dust suction hood 32. By setting the second filter screen 6, when collecting the dust generated by the plastic particles in the screening device 1, the plastic particles are prevented from being sucked into the dust suction pipe 31 from the dust suction hood 32 under the action of the dust suction machine 3, causing the dust suction pipe 31 to be blocked and affecting the collection of the dust generated by the plastic particles.

[0026] A collection box 7 is provided at the bottom of the screening device 1. By setting the collection box 7, the remaining impurities and dust in the plastic particles are collected.

[0027] Working principle: In actual use, plastic particles are added into the screening device 1 from the feeding hopper on the screening device 1. At the same time, the motor on the reciprocating lead screw 24 is started, and the cold air blower 2 is started. The cold air blower 2 cools the plastic particles in the screening device 1 rapidly through the cold air duct 21, the telescopic tube 22 and the cold air hood 23. At the same time, with the rotation of the reciprocating lead screw 24, the clamping block 25, the connecting block 26, the cold air hood 23 and the fixing plate 27 are driven to move back and forth, so as to cool the plastic particles in the screening device 1 back and forth;

[0028] Then, the dust collector 3 is started at the same time. Through the action of the dust collector 3, the dust in the plastic particles enters the dust collector 3 through the dust suction cover 32 and the dust suction pipe 31, so as to collect the dust in the plastic particles.

[0029] Obviously, those skilled in the art can make various changes and modifications to the present utility model without departing from the spirit and scope of the present utility model. Thus, if these modifications and variations of the present utility model fall within the scope of the claims of the present utility model and their equivalent technologies, the present utility model also intends to include these modifications and variations.

Claims

1. A plastic particle screening device, comprising a screening device (1), characterized in that: The screening device (1) has two guide plates (11) rotatably connected thereto via a rotating shaft, each of the guide plates (11) having a first filter screen (12) fixedly mounted therein, a first discharge pipe (13) fixedly mounted on one side of the screening device (1), a second discharge pipe (14) fixedly mounted on the side of the screening device (1) close to the first discharge pipe (13), a shaking assembly (15) being provided at the bottom edges of the two guide plates (11), a cooling fan (2) fixedly mounted on the side of the screening device (1) away from the first discharge pipe (13) and located at the top of the screening device (1), a cooling fan (21) penetrating the screening device (1) being fixedly mounted on the top of the cooling fan (2), A telescopic tube (22) is fixedly mounted on the side of the cold air duct (21) away from the cold air machine (2), and an inclined cold air cover (23) is fixedly mounted on the side of the telescopic tube (22) away from the cold air duct (21). A reciprocating screw (24) is rotatably penetrated at the top edge of the screening device (1), a clamping block (25) is movably clamped inside the reciprocating screw (24), and a connecting block (26) is rotatably sleeved on one side of the clamping block (25). The telescopic tube (22) is fixed to the connecting block (26) via a fixing block, and a fixing plate (27) is rotatably sleeved on the outside of the reciprocating screw (24) at the position of the clamping block (25), and the clamping block (25) rotatably penetrates the connecting block (26).

2. A plastic particle screening device as claimed in claim 1, characterized in that: A dust collector (3) is fixedly mounted on the top of the screening device (1), a dust suction pipe (31) penetrating the screening device (1) is fixedly mounted on one side of the dust collector (3), and a dust suction hood (32) is fixedly mounted on the bottom end of the dust suction pipe (31).

3. A plastic particle screening device as claimed in claim 1, characterized in that: The leakage holes of the first filter screen (12) located at the top are larger than the leakage holes of the first filter screen (12) located at the bottom.

4. A plastic particle screening device as claimed in claim 1, characterized in that: The shaking assembly (15) comprises a rotating rod (4), the rotating rod (4) rotates and penetrates the screening device (1), three strip blocks (41) evenly distributed in an annular shape are fixedly installed on one side of the rotating rod (4), a square block (42) is movably installed on the outside of the strip block (41), a rectangular groove (43) is penetrated in the middle of the square block (42), a fan-shaped groove (44) is penetrated in the middle of the square block (42) and located at the diagonal of the rectangular groove (43), guide rods (45) are fixedly installed at both ends of the square block (42), the top of the guide rod (45) located at the top is hinged to the guide plate (11), the outside of the two guide rods (45) are slidably sleeved with two symmetrically distributed fixing seats (46), the fixing seats (46) are fixed on the inner wall of the screening device (1), and the two rotating rods (4) are connected by a synchronous belt transmission.

5. The plastic particle screening device according to claim 1, characterized in that: The first feed pipe (13) is longer than the second feed pipe (14).

6. A plastic particle screening device as claimed in claim 1, characterized in that: A limit plate (5) is fixedly mounted on the inner wall of the screening device (1), and the connecting block (26) is slidably sleeved on the limit plate (5).

7. A plastic particle screening device as claimed in claim 2, characterized in that: A second filter screen (6) is fixedly mounted on the bottom end of the dust hood (32).

8. The plastic particle screening device according to claim 1, characterized in that: A collecting box (7) is provided at the bottom of the screening device (1).

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