Screening device for PPS modified material

Abstract

The invention relates to the technical field of screening, in particular to a PPS modified material screening device which comprises a bottom plate, side plates are fixedly connected to the two side edges of the bottom plate correspondingly, a movable plate is slidably installed on the inner sides of the side plates through a reciprocating mechanism, and a plurality of screening rods arranged in an array mode are fixedly connected to the lower edge of the front surface of the movable plate. A plurality of guide plates are installed between the two side plates through a distance adjusting mechanism, the guide plates are located below the screening rods, a gap is reserved between every two adjacent guide plates, a feeding hopper is jointly and fixedly installed at the rear positions of the upper edges of the two side plates, and a dispersing mechanism is arranged at the lower end of the feeding hopper; long particles and short particles in material particles can be screened, and the screening degree is high; particles can be dispersed during feeding, so that the screening effect is improved, and the screening speed is increased; good adaptability is achieved, and particles with different lengths can be screened out through adjustment.

Description

Technical Field

[0001] The present invention relates to the technical field of screening, in particular to a screening device for PPS modified materials. Background Art

[0002] In the production process of PPS modified material particles, screening is a crucial step to ensure that the final product has consistent particle size and quality. Because PPS modified material particles are extruded and cut into granules, particles are prone to uneven lengths, so a screening step is necessary.

[0003] After coarse screening to remove impurities, long particles need to be screened out. Vibrating screens are commonly used in the screening process for PPS modified material particles. They utilize the excitation force generated by a motor to vibrate the screen at high frequencies, thereby achieving material screening. However, during screening, some long particles can still fall through the mesh, resulting in incomplete screening. Furthermore, when particles are added, they accumulate and concentrate, resulting in poor screening results. Prolonged vibration is required to complete screening. Therefore, we have developed a screening device for PPS modified materials. Summary of the Invention

[0004] The purpose of the present invention is to solve the shortcomings of the background technology and to propose a screening device for PPS modified materials.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows: a screening device for PPS modified materials, comprising a bottom plate, side plates are fixedly connected to both sides of the bottom plate, movable plates are slidably installed on the inner sides of the side plates through a reciprocating mechanism, a plurality of screening rods arranged in an array are fixedly connected to the lower edge of the front surface of the movable plate, a plurality of guide plates are installed between the two side plates through a distance adjustment mechanism, the guide plates are located below the screening rods, and adjacent guide plates are spaced apart, a feed hopper is fixedly installed at the rear position of the upper edges of the two side plates, and a dispersion mechanism is provided at the lower end of the feed hopper; Short particles and long particles in the material particles fall to the upper surface of the guide plate through the gaps between the screening bars, long particles slide away from the intervals between adjacent guide plates, and short particles fall from the intervals.

[0006] Preferably, the reciprocating mechanism includes transmission plates rotatably mounted on adjacent sides of the two side plates, a transmission shaft is fixedly connected between the two transmission plates, the outer surface of the transmission shaft is rotatably connected to a transmission rod, rotating shafts are fixedly provided at the rear ends of the two side surfaces of the transmission rod, the outer surfaces of the two rotating shafts are rotatably connected to connecting seats, the connecting seats are fixedly connected to the rear surface of the movable plate, the movable plate is slidably fitted with the two side plates, a motor is fixedly mounted on the side of one side plate, and the output shaft of the motor is fixedly connected to the central axis of the transmission plate.

[0007] Preferably, a supporting plate is fixedly installed between the two side plates, and a vertical connecting plate is fixedly connected to the lower side of the rear surface of the movable plate, and the vertical connecting plate is slidably matched with the upper surface of the supporting plate.

[0008] Preferably, the front ends of the plurality of screening rods are fixedly connected to an end rod.

[0009] Preferably, the distance adjustment mechanism includes a fixed plate fixedly mounted on the side surface of one side plate, a slide rail is fixedly connected to the lower side of the fixed plate, a strip opening is opened on the side surface of the side plate, the guide plate slides through the inner side of the strip opening, the lower surface of each guide plate is fixedly connected to a sleeve block through an extension plate, the sleeve block is slidably sleeved on the outer surface of the slide rail, and a locking bolt with a threaded fit is provided through the lower surface of the sleeve block.

[0010] Preferably, a soft plate is fixedly connected between two adjacent guide plates, and the soft plate is located on the inner side of the strip-shaped opening.

[0011] Preferably, the dispersion mechanism includes a closing mouth fixedly connected to the lower end of the feed hopper, a feed roller is rotatably installed on the inner side of the closing mouth, the outer surface of the feed roller is fixedly covered with a soft cover, the upper surface of the front surface of the movable plate is fixedly connected to a contact frame, the upper surface of the contact frame is fixedly provided with an anti-slip pad, and the anti-slip pad is in contact with the outer surface of the soft cover.

[0012] Preferably, a discharge channel is fixedly installed at the front end between the side panels on both sides, the discharge channel is located below the guide plate, a top frame is fixedly installed on the upper edges of the two side panels, and a bracket is fixedly installed on the sides of the two side panels.

[0013] Compared with the prior art, the present invention has the following beneficial effects: The present invention can screen long particles and short particles in the material particles, and the screening degree is high; The present invention can disperse particles during feeding, thereby improving screening effect and speed; The invention has good adaptability and can screen out particles of different lengths through adjustment. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic structural diagram of a screening device for PPS modified materials of the present invention; Figure 2 A cross-sectional view of a screening device for a PPS modified material according to the present invention; Figure 3 A screening device for PPS modified material of the present invention Figure 2 Enlarged view of point A in the middle; Figure 4 A screening device for PPS modified material of the present invention Figure 2 Enlarged view of point B in the middle; Figure 5 This is a schematic diagram of a guide plate of a screening device for PPS modified materials according to the present invention; Figure 6 A screening device for PPS modified material of the present invention Figure 5 Enlarged view of point C in the middle; Figure 7 A screening device for PPS modified material of the present invention Figure 5 Enlarged view of point D in the middle; Figure 8 This is a schematic diagram of another perspective of a screening device for a PPS modified material of the present invention; Figure 9 A screening device for PPS modified material of the present invention Figure 8 Enlarged view of point E in the middle; Figure 10 This is a schematic diagram of a side panel of a screening device for PPS modified materials of the present invention; Figure 11 This is a partial schematic diagram of the use of a screening device for PPS modified materials according to the present invention.

[0015] 1. Side plate; 2. Top frame; 3. Bottom plate; 4. Support plate; 5. Movable plate; 6. Vertical plate; 7. Screening rod; 8. End rod; 9. Guide plate; 10. Fixed plate; 11. Slide rail; 12. Bushing block; 13. Locking bolt; 14. Extension plate; 15. Soft plate; 16. Drive plate; 17. Drive shaft; 18. Drive rod; 19. Connecting seat; 20. Rotating shaft; 22. Feed hopper; 23. Closing mouth; 24. Feed roller; 25. Soft sleeve; 26. Contact frame; 27. Anti-slip pad; 28. Bracket; 29. ​​Motor; 30. Strip mouth; 31. Discharge channel; 32. Short grain; 33. Long grain. DETAILED DESCRIPTION

[0016] The following description is intended to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are merely examples, and those skilled in the art may conceive of other obvious variations.

[0017] like Figures 1-11 The device for screening PPS modified materials shown in the figure includes a bottom plate 3, with side plates 1 fixedly connected to both sides of the bottom plate 3. A movable plate 5 is slidably mounted on the inner side of the side plate 1 via a reciprocating mechanism. A plurality of screening rods 7 arranged in an array are fixedly connected to the lower edge of the front surface of the movable plate 5. A plurality of guide plates 9 are mounted between the two side plates 1 via a spacing adjustment mechanism. The guide plates 9 are located below the screening rods 7, with gaps left between adjacent guide plates 9. A feed hopper 22 is fixedly mounted on the rear edge of the upper edges of the two side plates 1. A dispersion mechanism is provided at the lower end of the feed hopper 22. The short particles 32 and long particles 33 in the material particles fall through the gaps between the screening rods 7 to the upper surface of the guide plate 9. The long particles 33 slide away from the gaps between the adjacent guide plates 9, and the short particles 32 fall from the gaps. The principle is as follows: Figure 11 shown.

[0018] like Figure 2 、 Figure 8 、 Figure 9 As shown, the reciprocating mechanism includes a transmission disk 16 rotatably mounted on one side of the two side plates 1, a transmission shaft 17 fixedly connected between the two transmission disks 16, and a transmission rod 18 rotatably connected to the outer surface of the transmission shaft 17. Rotating shafts 20 are fixedly provided at the rear ends of the two side surfaces of the transmission rod 18, and the outer surfaces of the two rotating shafts 20 are rotatably connected to connecting seats 19. The connecting seats 19 are fixedly connected to the rear surface of the movable plate 5, and the movable plate 5 slides between the two side plates 1. A motor 29 is fixedly mounted on the side of one side plate 1, and the output shaft of the motor 29 is fixedly connected to the central axis of the transmission disk 16. The motor 29 drives the transmission disk 16 and the transmission shaft 17. Under the action of the transmission rod 18, the movable plate 5 is reciprocated. Since the transmission rod 18 is rotatably connected to the transmission shaft 17, the transmission rod 18 can rotate with the rotating shaft 20 as the axis. Therefore, there is no jamming problem during transmission.

[0019] like Figure 2 、 Figure 3 As shown, a support plate 4 is fixedly installed between the two side plates 1, and a vertical plate 6 is fixedly connected to the lower side of the rear surface of the movable plate 5. The vertical plate 6 is slidably engaged with the upper surface of the support plate 4. The support plate 4 plays the role of supporting the lower side of the movable plate 5, and the vertical plate 6 is used to ensure the stability of the movable plate 5 when it moves horizontally.

[0020] like Figure 2 As shown, the front ends of several screening rods 7 are fixedly connected to end rods 8, which are used to increase the stability of the overall structure of the screening rods 7.

[0021] like Figure 5 、 Figure 6 As shown, the spacing adjustment mechanism includes a fixed plate 10 fixedly mounted on the side surface of one side panel 1. A slide rail 11 is fixedly connected to the lower edge of the fixed plate 10. A strip-shaped opening 30 is defined in the side surface of the side panel 1, through which the guide plates 9 slide. A sleeve block 12 is fixedly connected to the lower surface of each guide plate 9 via an extension plate 14. The sleeve block 12 slides over the outer surface of the slide rail 11. A locking bolt 13, threadedly engaged with the sleeve block 12, is provided through the lower surface of the sleeve block 12. This design allows each guide plate 9 to be moved, flexibly adjusting the spacing between adjacent guide plates 9 to accommodate different screening needs.

[0022] like Figure 5 、 Figure 7 、 Figure 10As shown, a soft plate 15 is fixedly connected between two adjacent guide plates 9, and the soft plate 15 is located inside the strip opening 30. The soft plate 15 can be made of silicone cloth to prevent particles from leaking from the strip opening 30 while not hindering the lateral movement of the guide plate 9.

[0023] like Figure 2 、 Figure 4 As shown, the dispersion mechanism includes a mouth 23 fixedly connected to the lower end of the feed hopper 22. A feed roller 24 is rotatably mounted on the inner side of the mouth 23. A soft cover 25 is fixedly provided on the outer surface of the feed roller 24. A contact frame 26 is fixedly connected to the upper surface of the front surface of the movable plate 5. An anti-slip pad 27 is fixedly provided on the upper surface of the contact frame 26. The anti-slip pad 27 contacts the outer surface of the soft cover 25. The anti-slip pad 27 and the soft cover 25 are both made of rubber, and the friction between them is relatively large, so the contact frame 26 can effectively transmit the power.

[0024] like Figure 1 、 Figure 2 As shown, a discharge channel 31 is fixedly installed at the front end between the side panels 1 on both sides. The discharge channel 31 is located below the guide plate 9 and is used to guide the long particles 33 to be discharged. A top frame 2 is fixedly installed on the upper sides of the two side panels 1 to increase the connection strength between the two side panels 1. A bracket 28 is fixedly installed on the sides of the two side panels 1 to make the entire device so that the device as a whole is tilted toward the front and bottom to ensure that the particles can slide after feeding.

[0025] The material particles are fed from the feed hopper 22 and pass through the closing mouth 23 to slow down the feeding speed. Under the action of the motor 29, the transmission plate 16 and the transmission shaft 17 rotate. Under the drive of the transmission rod 18, the movable plate 5 moves back and forth, and the contact frame 26 moves back and forth. The friction between the anti-slip pad 27 and the soft sleeve 25 causes the feed roller 24 to rotate forward and reverse continuously, thereby promoting the dispersion of the particles and ensuring that no blockage problems occur.

[0026] After the long particles 33 and the short particles 32 in the particles fall onto the surface of the screening rod 7, the reciprocating movement of the screening rod 7 promotes the long particles 33 to swing to be parallel to the screening rod 7, and the long particles 33 fall from between the screening rods 7, while the short particles 32 also continue to fall. After falling onto the surface of the guide plate 9, the long particles 33 and the short particles 32 both move forward and downward along the surface of the guide plate 9. During the movement, the upper positions of the two side surfaces of the long particles 33 will be restricted by the screening rod 7, and there will be no rotation problem. They will still remain parallel to the screening rod 7 during the movement. Therefore, when passing through the gap between adjacent guide plates 9, the long particles 33 will slide away from the top of the gap, and the short particles 32 will fall from the inside of the gap, thereby achieving the screening effect. Finally, the long particles 33 will be sent away through the discharge channel 31, and the short particles 32 will be sent away through the bottom plate 3, which has the function of screening short particles 32 and long particles 33.

[0027] By loosening the locking bolt 13, the sleeve block 12 can be moved along the surface of the slide rail 11. After adjusting the interval between two adjacent guide plates 9, the locking bolt 13 can be tightened again. Therefore, the adaptability is good, and the length of the long grains 33 to be screened can be set and adjusted, which is more convenient.

[0028] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions merely illustrate the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A screening device for PPS modified materials, comprising a bottom plate (3), characterized in that: The two sides of the bottom plate (3) are respectively fixedly connected to the side plates (1), the inner side of the side plates (1) is slidably mounted with a movable plate (5), the lower side of the front surface of the movable plate (5) is fixedly connected to a plurality of screening rods (7) arranged in an array, a plurality of guide plates (9) are mounted between the two side plates (1) via a distance adjustment mechanism, the guide plates (9) are located below the screening rods (7), and a gap is left between adjacent guide plates (9), a feed hopper (22) is fixedly mounted at a rear position of the upper edges of the two side plates (1), and a dispersion mechanism is provided at the lower end of the feed hopper (22); Short particles (32) and long particles (33) in the material particles pass through the gaps between the screening bars (7) and fall onto the upper surface of the guide plate (9). The long particles (33) slide away from the gaps between adjacent guide plates (9), and the short particles (32) fall from the gaps.

2. The screening device for PPS modified material according to claim 1, characterized in that: The reciprocating mechanism includes a transmission disk (16) rotatably mounted on adjacent sides of the two side plates (1), a transmission shaft (17) fixedly connected between the two transmission disks (16), an outer surface of the transmission shaft (17) rotatably connected to a transmission rod (18), a rotating shaft (20) fixedly provided at the rear ends of the two side surfaces of the transmission rod (18), the outer surfaces of the two rotating shafts (20) rotatably connected to a connecting seat (19), the connecting seat (19) fixedly connected to the rear surface of the movable plate (5), the movable plate (5) and the two side plates (1) are slidably matched, a motor (29) fixedly mounted on the side of one side plate (1), and the output shaft of the motor (29) fixedly connected to the central axis of the transmission disk (16).

3. The screening device for PPS modified material according to claim 2, characterized in that: A support plate (4) is fixedly installed between the two side plates (1), and a vertical plate (6) is fixedly connected to the lower side of the rear surface of the movable plate (5), and the vertical plate (6) is slidably matched with the upper surface of the support plate (4).

4. The screening device for PPS modified material according to claim 1, characterized in that: The front ends of the plurality of screening rods (7) are fixedly connected to an end rod (8).

5. The screening device for PPS modified material according to claim 1, characterized in that: The distance adjustment mechanism comprises a fixed plate (10) fixedly mounted on the side surface of one side plate (1), a slide rail (11) being fixedly connected to the lower side of the fixed plate (10), a strip opening (30) being provided on the side surface of the side plate (1), the guide plate (9) slidingly passing through the inner side of the strip opening (30), the lower surface of each guide plate (9) being fixedly connected to a sleeve block (12) via an extension plate (14), the sleeve block (12) being slidably sleeved on the outer surface of the slide rail (11), and a locking bolt (13) threadedly matched with the sleeve block (12) being provided through the lower surface of the sleeve block (12).

6. The screening device for PPS modified material according to claim 5, characterized in that: A soft plate (15) is fixedly connected between two adjacent guide plates (9), and the soft plate (15) is located inside the strip-shaped opening (30).

7. The screening device for PPS modified material according to claim 1, characterized in that: The dispersing mechanism includes a closing mouth (23) fixedly connected to the lower end of the feed hopper (22), a feeding roller (24) is rotatably mounted on the inner side of the closing mouth (23), and a soft cover (25) is fixedly provided on the outer surface of the feeding roller (24). A contact frame (26) is fixedly connected to the upper surface of the front surface of the movable plate (5), and an anti-slip pad (27) is fixedly provided on the upper surface of the contact frame (26), and the anti-slip pad (27) contacts the outer surface of the soft cover (25).

8. The screening device for PPS modified material according to claim 1, characterized in that: A discharge channel (31) is fixedly installed at the front end between the side panels (1) on both sides. The discharge channel (31) is located below the guide plate (9). A top bracket (2) is fixedly installed on the upper sides of the two side panels (1). A bracket (28) is fixedly installed on the side surfaces of the two side panels (1).

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