Efficient screening device for plastic raw materials

Abstract

The efficient plastic raw material screening device comprises a box body, a fixed plate and filter plates, the bottoms of the two filter plates are each provided with a pair of connecting columns, the bottoms of the connecting columns are fixedly connected with a movable plate, tooth grooves are formed in the movable plate, and sliding grooves are formed in the positions, located on the two sides of the tooth grooves, of the movable plate; the box body is fixedly connected with a group of fixing plates below the two filter plates, first motors are arranged at the tops of the two groups of fixing plates, the output ends of the first motors are connected with gears through rotating shafts, the gears are meshed with the tooth grooves, connecting blocks are symmetrically arranged at the tops of the fixing plates and located on the two sides of the first motors, and pulleys are arranged at the tops of the connecting blocks; the pulleys are slidably connected into the sliding grooves. Plastic raw materials are injected into the box body, two first motors are started to enable gears to rotate, then a movable plate drives a connecting column to enable a filter plate to move left and right, the plastic raw materials of different specifications can fall on different filter plates, the whole plastic raw material screening process is conducted in the box body through the device, and the screening effect can be better.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic processing, in particular to a high-efficiency screening device for plastic raw materials. Background Art

[0002] When plastic raw materials are classified according to the molecular structure of synthetic resins, they are mainly divided into thermoplastic and thermosetting. Thermoplastic plastics refer to plastics that remain plastic after repeated heating, while thermosetting plastics mainly refer to plastics made from synthetic resins that are hardened by heating, such as some phenolic plastics and amino plastics. During the plastic processing process, the raw materials need to be screened.

[0003] The Chinese patent discloses a multi-layer screening and efficient plastic pellet screening device (application number: 202120619123.9). The scheme introduces the raw materials into the chassis through the hopper, and drives the chassis to move back and forth on the frame through the driving mechanism, so that the raw materials shake and roll forward on the first sieve plate, the second sieve plate and the third sieve plate, and finally the baffles corresponding to the first sieve plate, the second sieve plate and the third sieve plate are opened in sequence, and the screened plastic pellets are discharged. In this device, the chassis is driven by the driving mechanism to move back and forth on the frame, so as to realize the simulated artificial shaking screening of multiple sieve plates, but due to the large mass of the entire device, the force inside the chassis may be insufficient to shake the driving mechanism, resulting in poor screening effect and low efficiency; at the same time, the guide mechanism moves back and forth for a long time inside the linear bearing, which will cause serious wear and tear due to the excessive mass of the device, which will seriously cause damage to the guide mechanism, affect the screening work, and create work safety hazards. On the other hand, the device also needs to manually collect the plastic raw materials when the baffle is opened at the end, which increases the workload and the work efficiency is not high. Utility Model Content

[0004] The purpose of the utility model is to provide a highly efficient screening device for plastic materials to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a high-efficiency screening device for plastic raw materials, comprising a box body, a fixed plate and a filter plate, wherein two filter plates are provided with different filter hole sizes, a pair of connecting columns are provided at the bottom of the two filter plates, a movable plate is fixedly connected to the bottom of the connecting column, a tooth groove is provided inside the movable plate, and slide grooves are provided on both sides of the movable plate at the tooth grooves, the box body is located below the two filter plates and is fixedly connected to a group of fixed plates, a first motor is provided on the top of the two groups of fixed plates, the output end of the first motor is connected to a gear through a rotating shaft, the gear is meshed with the tooth groove, the top of the fixed plate is located on both sides of the first motor and symmetrically provided with connecting blocks, a pulley is provided on the top of the connecting block, and the pulley is slidably connected in the slide groove.

[0006] As a preferred technical solution of the utility model, a group of first mounting frames and second mounting frames are symmetrically installed on both side walls of the inner cavity of the box body, the two filter plates are respectively arranged between a pair of first mounting frames and second mounting frames, and connecting columns are arranged on both sides of the top of the movable plate, and the top of the connecting column is connected to the bottom of the filter plate.

[0007] As a preferred technical solution of the utility model, plastic blocks are provided at the openings on the opposite sides of the two first mounting frames and the second mounting frames, oscillators are provided at the bottoms of the two filter plates, a guide plate is fixedly connected to the top of the second mounting frame, and the other end of the guide plate is fixedly connected to the inner wall of the box.

[0008] As a preferred technical solution of the utility model, two groups of second motors are arranged on the rear outer wall of the box body, and the output ends of the two groups of second motors are fixedly connected with screws, and the surfaces of the screws are threadedly connected with threaded sleeves.

[0009] As a preferred technical solution of the utility model, a hydraulic telescopic rod is provided at the bottom of the threaded sleeve block, a collecting plate is fixedly installed at the bottom of the hydraulic telescopic rod, and two discharge ports are opened at the rear of the box body at the filter plate.

[0010] As a preferred technical solution of the utility model, both sides of the discharge port are fixedly connected with fixed blocks, the fixed blocks are provided with baffles, and a handle is fixedly installed on the top of the baffle.

[0011] As a preferred technical solution of the utility model, a fixed frame is fixedly connected below each of the two groups of discharge ports, and a collecting box is slidably connected inside the fixed frame.

[0012] As a preferred technical solution of the utility model, two feed ports are symmetrically arranged on both sides of the top of the box body, a feed pipe is fixedly connected to the bottom of the feed port, and a box door is connected to the front of the box body through a hinge.

[0013] As a preferred technical solution of the utility model, an observation window is provided on the box door, a door handle is fixedly installed on the right side of the box door near the front of the observation window, and a waste box is movably connected to the bottom of the box inner cavity.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. The high-efficiency screening device for plastic raw materials injects plastic raw materials into a box, starts two first motors to rotate the gears, and the gear meshes with the tooth grooves to move the movable plate with the connecting column. At this time, the filter plates above the two groups of connecting columns will move left and right, simulating manual shaking and screening of the plastic raw materials. Plastic raw materials of different specifications will fall on different filter plates, and dust and impurities will be filtered and fall into the waste box. The device allows the entire process of plastic raw material screening to be carried out inside the box, which can make the screening effect better, while maintaining the stability of the box, preventing the shaking of the entire device from causing impact damage to the internal mechanism of the box and the plastic raw materials.

[0016] 2. The efficient screening device for plastic raw materials, when the plastic raw materials are screened, the two hydraulic telescopic rods are used to move the collecting plate down to contact the surfaces of the two filter plates respectively, and the two second motors are started to rotate the screw to move the threaded sleeve. At this time, the collecting plate will move on the surface of the filter plate to scrape the plastic raw materials from the discharge port to the inside of the collecting box for collection. The mechanism realizes the automatic integration of screening, dividing and collecting, does not require manual intervention, and improves work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the main structure of the utility model;

[0018] Figure 2 It is a rear view of the main structure of the utility model;

[0019] Figure 3 It is a rear view of the main structure of the utility model;

[0020] Figure 4 This is a schematic diagram of the internal structure of the box of the utility model;

[0021] Figure 5 This is a schematic diagram of the connection structure of the fixing plate, the connecting block and the gear of the utility model;

[0022] Figure 6 It is a schematic diagram of the internal structure of the movable plate of the utility model.

[0023] In the figure: 1. box body; 2. fixed plate; 3. connecting block; 4. pulley; 5. first motor; 6. gear; 7. moving plate; 8. tooth groove; 9. slide; 10. connecting column; 11. filter plate; 12. first mounting frame; 13. second mounting frame; 14. oscillator; 15. plastic block; 16. guide plate; 17. second motor; 18. screw; 19. threaded sleeve; 20. hydraulic telescopic rod; 21. collecting plate; 22. feed port; 23. feed pipe; 24. waste box; 25. box door; 26. observation window; 27. door handle; 28. discharge port; 29. ​​fixed frame; 30. collecting box; 31. fixed block; 32. baffle; 33. handle. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See also Figure 1-6 The utility model provides a technical solution for a highly efficient screening device for plastic raw materials. The utility model will be further described in detail below in conjunction with the accompanying drawings.

[0026] Embodiment 1:

[0027] A plastic material efficient screening device comprises a box body 1, a fixed plate 2 and a filter plate 11, wherein two filter plates 11 are provided with different filter hole sizes, a pair of connecting columns 10 are provided at the bottom of the two filter plates 11, a movable plate 7 is fixedly connected to the bottom of the connecting column 10, a tooth groove 8 is provided inside the movable plate 7, and a slide groove 9 is provided on both sides of the tooth groove 8 of the movable plate 7, the box body 1 is located below the two filter plates 11 and is fixedly connected to each of a group of fixed plates 2, and a first motor 5 is provided on the top of the two groups of fixed plates 2, and the output end of the first motor 5 is connected to a gear 6 through a rotating shaft, and the gear 6 is meshed with the tooth groove 8, and the top of the fixed plate 2 is symmetrically provided with connecting blocks 3 on both sides of the first motor 5, and a pulley 4 is provided on the top of the connecting block 3, and the pulley 4 is slidably connected in the slide groove 9. The pulley 4 can make the movable plate 7 move more smoothly, improve the stability and working efficiency of the structure, and at the same time, reduce the overall force of the first motor 5 and extend its service life.

[0028] Specifically, a group of first mounting frames 12 and second mounting frames 13 are symmetrically installed on both side walls of the inner cavity of the box body 1, and two filter plates 11 are respectively arranged between a pair of first mounting frames 12 and second mounting frames 13. Connecting columns 10 are arranged on both sides of the top of the movable plate 7, and the top of the connecting column 10 is connected to the bottom of the filter plate 11.

[0029] Furthermore, plastic blocks 15 are provided at the openings on the opposite sides of the two first mounting frames 12 and the second mounting frame 13, and oscillators 14 are provided at the bottoms of the two filter plates 11. A guide plate 16 is fixedly connected to the top of the second mounting frame 13, and the other end of the guide plate 16 is fixedly connected to the inner wall of the box body 1. On the one hand, the oscillator 14 can make the filter screen 11 oscillate to prevent the filter screen from being blocked and affecting the screening, and on the other hand, it cooperates with the moving plate 7 to fully oscillate the plastic originals to improve the screening efficiency; the plastic block 15 can block the plastic raw materials outside during the movement of the filter plate 11 to prevent them from entering the first mounting frame 12 and the second mounting frame 13, causing incomplete filtration and affecting the normal operation between the filter plate 11 and the first mounting frame 12 and the second mounting frame 13.

[0030] Furthermore, two feed ports 22 are symmetrically arranged on both sides of the top of the box body 1, a feed pipe 23 is fixedly connected to the bottom of the feed port 22, and a box door 25 is connected to the front of the box body 1 through a hinge.

[0031] Furthermore, an observation window 26 is provided on the box door 25, a door handle 27 is fixedly installed on the right side of the box door 25 near the front of the observation window 26, and a waste box 24 is movably connected to the bottom of the inner cavity of the box body 1. By opening the box door 25, it is convenient to maintain the structure inside the box body 1, and the screening situation inside can be observed in real time through the observation window 26.

[0032] When used specifically, Figure 1 , Figure 4 and Figure 5 , Figure 6 As shown, the plastic raw material is injected into the inner cavity of the box body 1 through the two feed ports 22 through the feed pipe 23 and falls on the filter screen 11 at the top, and then the first motor 5 is started to rotate the gear 6. The gear 6 rotates inside the tooth groove 8 to move the movable plate 7. The movement of the movable plate 7 causes the connecting column 10 to move the filter plate 11 left and right. At this time, it can simulate the manual shaking of the device to screen the plastic raw material. The smaller plastic raw material will fall from the top filter plate 11 to the bottom filter plate 11. The same operation is performed. The other first motor 5 is started to make the other movable plate 7 move left and right with the bottom filter plate 11, so that the dust and impurities in the plastic raw material can be shaken to fall into the waste box 24 at the bottom of the box body 1 for unified collection and treatment. Through this device, it is possible to simulate the manual shaking and screening of plastic raw materials, reduce the workload of manual labor, and at the same time, the whole process is carried out inside the box body 1, which can make the screening effect better, and the stability of the box body 1 is greatly improved, preventing the shaking of the entire box body 1 from causing the inside of the box body 1 to be damaged by impact.

[0033] Embodiment 2:

[0034] On the basis of the first embodiment, a highly efficient screening device for plastic raw materials is provided. Two sets of second motors 17 are arranged on the outer wall of the rear side of the box body 1. The output ends of the two sets of second motors 17 are fixedly connected with screws 18. The surface of the screws 18 is threadedly connected with threaded sleeves 19.

[0035] Specifically, a hydraulic telescopic rod 20 is provided at the bottom of the threaded sleeve block 19 , a collecting plate 21 is fixedly installed at the bottom of the hydraulic telescopic rod 20 , and two discharge ports 28 are provided at the rear of the box body 1 at the filter plate 11 .

[0036] Furthermore, both sides of the discharge port 28 are fixedly connected with fixed blocks 31 , the fixed blocks 31 are provided with baffles 32 , and a handle 33 is fixedly installed on the top of the baffles 32 .

[0037] Furthermore, a fixing frame 29 is fixedly connected below each of the two groups of discharge ports 28 , and a collecting box 30 is slidably connected inside the fixing frame 29 .

[0038] When used specifically, Figure 1 , Figure 2 and Figure 3 , Figure 4 As shown, after the plastic raw materials are screened, the two hydraulic telescopic rods 20 are used to move the collecting plate 21 downward to contact the surfaces of the two filter plates 11 respectively, and then the two second motors 17 are started to rotate the screw 18. The rotation of the screw 18 can drive the threaded sleeve 19 to drive the collecting plate 21 to move on the surface of the filter plate 11, and then the baffle 32 is moved upward from the discharge port 28 by lifting the handle 33, so that the discharge port 28 is opened, and the collecting plate 21 can scrape the plastic raw materials on the two filter plates 11 from the discharge port 28 to the inside of the collecting box 30 for collection. After the discharge is completed, the handle 33 is released, and the baffle will fall on the fixed block 31 to cover the discharge port 28 again; after the collecting box 30 is full, the collecting box 30 is taken out of the fixed frame 29 for emptying, and then it is put back into the fixed frame 29; the mechanism does not need to manually collect the screened plastic raw materials, realizes automation, reduces the workload of the staff, and improves work efficiency.

[0039] In the present utility model, unless otherwise clearly specified and limited, the first feature "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. In the description of this specification, the description of reference terms "one scheme", "some schemes", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the scheme or example are included in at least one scheme or example of the present utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same scheme or example. Moreover, the specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more schemes or examples.

Claims

1. A highly efficient screening device for plastic raw materials, comprising a housing (1), a fixing plate (2) and a filter plate (11), characterized in that: Two filter plates (11) are provided with filter holes of different sizes. A pair of connecting columns (10) are provided at the bottom of the two filter plates (11). A movable plate (7) is fixedly connected to the bottom of the connecting column (10). A tooth groove (8) is provided inside the movable plate (7). The movable plate (7) is provided with slide grooves (9) on both sides of the tooth groove (8). The housing (1) is located below the two filter plates (11) and is fixedly connected to a group of fixed plates (2). A first motor (5) is provided at the top of the two groups of fixed plates (2). The output end of the first motor (5) is connected to a gear (6) via a rotating shaft. The gear (6) is meshed with the tooth groove (8). The top of the fixed plate (2) is symmetrically provided with connecting blocks (3) on both sides of the first motor (5). A pulley (4) is provided on the top of the connecting block (3). The pulley (4) is slidably connected in the slide groove (9).

2. The device for efficiently screening plastic materials according to claim 1, characterized in that: A group of first mounting frames (12) and second mounting frames (13) are symmetrically mounted on both side walls of the inner cavity of the box body (1), and the two filter plates (11) are respectively arranged between a pair of first mounting frames (12) and second mounting frames (13). Connecting columns (10) are arranged on both sides of the top of the movable plate (7), and the top of the connecting column (10) is connected to the bottom of the filter plate (11).

3. The device for efficiently screening plastic materials according to claim 2, characterized in that: Plastic blocks (15) are provided at openings on opposite sides of the two first mounting frames (12) and the second mounting frames (13); oscillators (14) are provided at the bottoms of the two filter plates (11); a guide plate (16) is fixedly connected to the top of the second mounting frame (13); and the other end of the guide plate (16) is fixedly connected to the inner wall of the box body (1).

4. The device for efficiently screening plastic materials according to claim 1, characterized in that: Two groups of second motors (17) are arranged on the outer wall of the rear side of the box body (1), and the output ends of the two groups of second motors (17) are fixedly connected with screw rods (18), and the surface of the screw rods (18) is threadedly connected with a threaded sleeve block (19).

5. The device for efficiently screening plastic materials according to claim 4, characterized in that: A hydraulic telescopic rod (20) is arranged at the bottom of the threaded sleeve block (19), a collecting plate (21) is fixedly mounted at the bottom of the hydraulic telescopic rod (20), and two discharge ports (28) are arranged at the rear of the box body (1) at the filter plate (11).

6. The device for efficiently screening plastic materials according to claim 5, characterized in that: Both sides of the discharge port (28) are fixedly connected with fixed blocks (31), a baffle (32) is provided on the fixed block (31), and a handle (33) is fixedly installed on the top of the baffle (32).

7. The device for efficiently screening plastic materials according to claim 5, characterized in that: A fixed frame (29) is fixedly connected below each of the two groups of discharge ports (28), and a collecting box (30) is slidably connected inside the fixed frame (29).

8. The device for efficiently screening plastic materials according to claim 1, characterized in that: Two feed ports (22) are symmetrically arranged on both sides of the top of the box body (1), a feed pipe (23) is fixedly connected to the bottom of the feed port (22), and a box door (25) is connected to the front of the box body (1) via a hinge.

9. The device for efficiently screening plastic materials according to claim 8, characterized in that: The box door (25) is provided with an observation window (26), and a door handle (27) is fixedly installed on the right side of the box door (25) near the front of the observation window (26). The bottom of the inner cavity of the box body (1) is movably connected with a waste box (24).

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