Screening device of plastic vibrating screen

Abstract

The utility model belongs to the technical field of plastic particle production, and particularly relates to a screening device of a plastic vibrating screen, which comprises a hopper, a screen plate is assembled on the inner wall of the hopper, a rack is fixedly mounted on the bottom surface of the hopper, a waste pipe is fixedly connected to the inner side of the rack, and a vibrating motor is mounted on the side wall of the rack. The device comprises a rack, two supporting plates are fixedly connected to the top of the rack in a front-back symmetrical mode, the top faces of the two supporting plates on the same side are fixedly connected with the same transverse plate, through grooves are formed in the side walls of the transverse plates, movable blocks are slidably connected into the through grooves, and a connecting plate is fixedly connected between the two movable blocks; a transmission assembly is arranged on the side wall of the transverse plate on the front side, a cleaning plate is arranged on the lower side of the connecting plate, and a plurality of cleaning assemblies are arranged on the bottom face of the cleaning plate. According to the device, the sieve plate can be cleaned in a non-stop state, plastic particles blocked in holes can be conveniently extruded out, and the use efficiency of the device is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of plastic particle production, and particularly relates to a screening device of a plastic vibrating screen. Background Art

[0002] In the production process of plastic particles, the formed strip plastic needs to be cut into several plastic particles and then screened to remove impurities or fine particles in the plastic particles to ensure the uniformity of the plastic particles.

[0003] Since some plastic particles have different sizes, the sieve plate may be blocked by plastic particles during the screening process, making it impossible to screen other smaller plastic particles. Currently, the blockage and cleaning method of the sieve plate is basically to shut down the machine for maintenance, manually check the holes of the sieve plate one by one, and use tools to clean them. The process is relatively slow, which can easily delay the normal production of plastic particles and reduce the efficiency of the vibrating screen. Utility Model Content

[0004] The utility model aims to provide a screening device for a plastic vibrating screen, which can clean the screen plate without stopping the machine, so as to facilitate the extrusion of plastic particles blocked in the holes and increase the use efficiency of the equipment.

[0005] The technical solutions adopted in this utility are as follows:

[0006] A screening device of a plastic vibrating screen comprises a hopper, an inner wall of the hopper is equipped with a sieve plate, a frame is fixedly installed on the bottom surface of the hopper, a waste pipe is fixedly connected to the inner side of the frame, a vibration motor is installed on the side wall of the frame, two support plates are fixedly connected to the top of the frame symmetrically front and back, the top surfaces of the two support plates on the same side are fixedly connected to the same cross plate, the side walls of the cross plates are provided with through grooves, movable blocks are slidably connected in the through grooves, a connecting plate is fixedly connected between the two movable blocks, a transmission assembly is provided on the side wall of the cross plate on the front side, a cleaning plate is provided on the lower side of the connecting plate, a plurality of cleaning assemblies are provided on the bottom surface of the cleaning plate, and an adjustment assembly is provided between the connecting plate and the cleaning plate.

[0007] The transmission assembly includes a mounting plate fixedly connected to the end face of the transverse plate, a driving motor is fixedly mounted on the side wall of the mounting plate, a reciprocating screw is fixedly connected to the output end of the driving motor, a screw sleeve is threadedly connected to the side wall of the reciprocating screw, and the screw sleeve is fixedly connected to the front movable block.

[0008] The upper and lower side walls of the movable block are respectively fixedly connected to the limiting blocks, the upper and lower side walls of the through slot are respectively provided with limiting grooves, and the limiting blocks are slidably connected to the limiting grooves.

[0009] The cleaning assembly comprises a plurality of circular holes opened on the bottom surface of the cleaning plate, the top surfaces of the circular holes are fixedly connected with springs, the bottom ends of the springs are fixedly connected with circular plates, and the bottom surface of the circular plates is fixedly connected with a brush.

[0010] The adjusting assembly comprises a screw rod which is threadedly connected to the top surface of the connecting plate, the bottom end of the screw rod is rotatably connected to the cleaning plate, and the top end of the screw rod is fixedly connected to a rotating wheel.

[0011] The top surface of the cleaning plate is fixedly connected with two positioning rods, and the positioning rods penetrate through the connecting plate and are movably connected with the connecting plate.

[0012] The technical effects achieved by this utility model are:

[0013] The practical screening device of a plastic vibrating screen can regularly clean the screen plate without stopping the machine during the screening of plastic particles through the mutual cooperation between a hopper, a screen plate, a transmission component, an adjustment component and a cleaning component. The vibration force thereof can promote the cleaning effect of the brush on the holes, reduce the probability of blockage, and thus improve the screening quality of the plastic particles and the use efficiency of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of this practical embodiment;

[0015] Figure 2 It is a partial structural schematic diagram of this practical embodiment;

[0016] Figure 3 This practical embodiment Figure 2 A partial cross-sectional view of

[0017] Figure 4 This practical embodiment Figure 3 A in the enlarged view;

[0018] Figure 5 This practical embodiment Figure 3 Enlarged view of point B in .

[0019] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0020] 1. Hopper; 2. Screen plate; 3. Waste pipe; 4. Frame; 5. Vibration motor; 6. Support plate; 7. Horizontal plate; 8. Through slot; 9. Movable block; 10. Connecting plate; 11. Mounting plate; 12. Driving motor; 13. Reciprocating screw; 14. Screw sleeve; 15. Limit block; 16. Limit slot; 17. Cleaning plate; 18. Screw; 19. Rotor; 20. Positioning rod; 21. Round hole; 22. Spring; 23. Round plate; 24. Brush. DETAILED DESCRIPTION

[0021] In order to make the purpose and advantages of the present invention more clearly understood, the present invention is specifically described below in conjunction with the embodiments. It should be understood that the following text is only used to describe one or several specific implementations of the present invention, and does not strictly limit the scope of protection specifically requested by the present invention.

[0022] like Figure 1-Figure 5 As shown, a screening device of a plastic vibrating screen comprises a hopper 1, an inner wall of the hopper 1 is equipped with a sieve plate 2, a frame 4 is fixedly installed on the bottom surface of the hopper 1, a waste pipe 3 is fixedly connected to the inner side of the frame 4, and a vibration motor 5 is installed on the side wall of the frame 4, wherein a vibrating screen can be formed by structures such as the frame 4, the hopper 1, and the sieve plate 2, and the vibrating screen belongs to the existing mature technology, and its specific structure is no longer described in detail in this scheme, and two support plates 6 are fixedly connected to the top of the frame 4 symmetrically front and back, and the top surfaces of the two support plates 6 on the same side are fixedly connected to the same cross plate 7, and the side walls of the cross plate 7 are provided with through grooves 8, and movable blocks 9 are slidably connected in the through grooves 8, and a connecting plate 10 is fixedly connected between the two movable blocks 9, and a transmission assembly is arranged on the side wall of the front cross plate 7, a cleaning plate 17 is arranged on the lower side of the connecting plate 10, and a plurality of cleaning assemblies are arranged on the bottom surface of the cleaning plate 17, and an adjustment assembly is arranged between the connecting plate 10 and the cleaning plate 17.

[0023] like Figure 2 and Figure 4 As shown, the transmission assembly includes a mounting plate 11 fixedly connected to the end face of the transverse plate 7, a driving motor 12 is fixedly mounted on the side wall of the mounting plate 11, a reciprocating screw rod 13 is fixedly connected to the output end of the driving motor 12, a screw sleeve 14 is threadedly connected to the side wall of the reciprocating screw rod 13, and the screw sleeve 14 is fixedly connected to the front movable block 9.

[0024] The upper and lower side walls of the movable block 9 are respectively fixedly connected with the limiting blocks 15 , and the upper and lower side walls of the through slot 8 are respectively provided with limiting grooves 16 , and the limiting blocks 15 are slidably connected with the limiting grooves 16 .

[0025] Specifically, the transmission assembly can be used to synchronously drive the connecting plate 10 and the cleaning plate 17 to move, which is convenient for the cleaning assembly to clean the sieve plate 2, and the inclination of the cross plate 7 is consistent with the sieve plate 2, so as to achieve the purpose of close fit during the movement, thereby further improving the cleaning effect; in addition, the cross plate 7 is fixed to the frame 4 through the support plate 6, and when the vibration motor 5 is running, the connecting plate 10 and the cleaning plate 17 will not vibrate.

[0026] like Figure 3 and Figure 5 As shown, the cleaning assembly includes a plurality of circular holes 21 opened on the bottom surface of the cleaning plate 17, the top surface of the circular hole 21 is fixedly connected to a spring 22, the bottom end of the spring 22 is fixedly connected to a circular plate 23, and the bottom surface of the circular plate 23 is fixedly connected to a brush 24.

[0027] When cleaning the holes on the sieve plate 2, the vibration force of the sieve plate 2 and the resilience of the spring 22 can be used to facilitate the brush 24 to extend into the holes, and the brush 24 can be made of other materials such as a wire brush or a plastic brush according to actual needs.

[0028] like Figure 2 As shown, the adjustment assembly includes a screw rod 18 threadedly connected to the top surface of the connecting plate 10 , the bottom end of the screw rod 18 is rotatably connected to the cleaning plate 17 , and the top end of the screw rod 18 is fixedly connected to a rotating wheel 19 .

[0029] Two positioning rods 20 are fixedly connected to the top surface of the cleaning plate 17 , and the positioning rods 20 penetrate through the connecting plate 10 and are movably connected thereto.

[0030] Specifically, the user can replace the adjustment component according to actual needs, and can replace the screw 18 with an electric push rod, a cylinder or other driving parts to facilitate connecting it to the control system to achieve the purpose of automatic control, thereby improving the cleaning efficiency of the screen plate 2.

[0031] The working principle of the utility model is as follows: when screening plastic particles, the vibration motor 5 can be started to drive the screen plate 2 to vibrate, and then the plastic particles can be put onto the screen plate 2, and its vibration force can be used to separate smaller plastic particles and impurities, and the separated impurities can be discharged through the waste pipe 3; if the screen plate 2 is blocked, the feeding can be stopped, and then the rotating wheel 19 can be rotated to drive the screw 18 to rotate, and the screw 18 can drive the cleaning plate 17 to move downward, so that the brush 24 fits the screen plate 2 to a suitable depth, and then the driving motor 12 is started to drive the reciprocating screw 13 to rotate, and the reciprocating screw 13 drives the connecting plate 10 and the cleaning plate 17 to move synchronously through the screw sleeve 14, and at this time, the action force of the spring 22 is combined with the vibration force to allow the brush 24 to extend into the holes on the screen plate 2, so as to squeeze out the plastic particles adhering to the holes, so as to achieve the purpose of cleaning without stopping the machine, and effectively improve the screening efficiency of plastic particles.

[0032] The above is only a preferred embodiment of the present invention. It should be noted that, for ordinary technicians in the field, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be regarded as the protection scope of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention shall be implemented according to the conventional means in the field unless otherwise specified and limited.

Claims

1. A screening device for a plastic vibrating screen, characterized in that: The utility model comprises a hopper (1), wherein the inner wall of the hopper (1) is equipped with a sieve plate (2), the bottom surface of the hopper (1) is fixedly equipped with a frame (4), the inner side of the frame (4) is fixedly connected with a waste pipe (3), the side wall of the frame (4) is equipped with a vibration motor (5), the top of the frame (4) is symmetrically and fixedly connected with two support plates (6) in front and back, the top surfaces of the two support plates (6) on the same side are fixedly connected with the same cross plate (7), the side walls of the cross plate (7) are provided with through grooves (8), the through grooves (8) are slidably connected with movable blocks (9), a connecting plate (10) is fixedly connected between the two movable blocks (9), a transmission component is arranged on the side wall of the front cross plate (7), a cleaning plate (17) is arranged on the lower side of the connecting plate (10), a plurality of cleaning components are arranged on the bottom surface of the cleaning plate (17), and an adjustment component is arranged between the connecting plate (10) and the cleaning plate (17).

2. A screening device for a plastic vibrating screen according to claim 1, characterized in that: The transmission assembly comprises a mounting plate (11) fixedly connected to the end surface of the transverse plate (7); a driving motor (12) is fixedly mounted on the side wall of the mounting plate (11); a reciprocating screw rod (13) is fixedly connected to the output end of the driving motor (12); a screw sleeve (14) is threadedly connected to the side wall of the reciprocating screw rod (13); and the screw sleeve (14) is fixedly connected to the front movable block (9).

3. A screening device for a plastic vibrating screen according to claim 1, characterized in that: The upper and lower side walls of the movable block (9) are respectively fixedly connected to the limiting blocks (15), the upper and lower side walls of the through slot (8) are respectively provided with limiting grooves (16), and the limiting blocks (15) are slidably connected to the limiting grooves (16).

4. The screening device of a plastic vibrating screen according to claim 1, characterized in that: The cleaning assembly comprises a plurality of circular holes (21) formed on the bottom surface of the cleaning plate (17); the top surfaces of the circular holes (21) are fixedly connected to springs (22); the bottom ends of the springs (22) are fixedly connected to circular plates (23); and the bottom surfaces of the circular plates (23) are fixedly connected to brushes (24).

5. The screening device of a plastic vibrating screen according to claim 1, characterized in that: The adjustment assembly comprises a screw rod (18) threadedly connected to the top surface of the connecting plate (10), the bottom end of the screw rod (18) is rotatably connected to the cleaning plate (17), and the top end of the screw rod (18) is fixedly connected to a rotating wheel (19).

6. A screening device for a plastic vibrating screen according to claim 5, characterized in that: Two positioning rods (20) are fixedly connected to the top surface of the cleaning plate (17), and the positioning rods (20) penetrate the connecting plate (10) and are movably connected thereto.

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