Vibrating screening mechanism

Abstract

The utility model discloses a vibrating screening mechanism, which relates to the technical field of screening mechanisms and comprises a screening box, supporting legs are fixedly connected to four corners of the bottom end of the screening box, a supporting plate is fixedly connected to the bottom of the left end of the screening box, and a fixing plate is fixedly connected to the top of the left end of the screening box. A feeding port is fixedly connected to the top end of the screening box, a discharging port is fixedly connected to the bottom end of the screening box, and a swing mechanism is fixedly connected to the top end of the supporting plate. According to the vibration screening mechanism, the motor is started to drive the fixed disc and the circular ring to rotate synchronously, so that the movable rod slides in a cavity formed by the fixed disc and the circular ring, and therefore the movable rod drives the connecting rod to rotate synchronously, the driving rod is driven to move, the driving rod drives the sliding plate to move synchronously, and the sliding plate drives the connecting arm to move synchronously; and the connecting arm drives the screening frame to move synchronously, so that the screening frame swings left and right, and the swinging effect is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of screening mechanisms, in particular to a vibration screening mechanism. Background Art

[0002] At present, plastics are usually cut into granules after extrusion molding. After cutting, there are usually some plastic granules with larger specifications that do not meet the requirements, so a vibrating screening mechanism is needed to screen them.

[0003] For example, Chinese patent document CN216031838U discloses a vibrating screening mechanism, including a supporting plate, a vibration structure and a material discharge piece, wherein the supporting plate is provided with a plurality of screening holes, the vibration structure is used to drive the supporting plate to vibrate, the material discharge piece is provided at the bottom of the supporting plate, and the screening holes are used to allow qualified materials to fall into the material discharge piece; the supporting plate is also connected to a material discharge piece for outputting unqualified materials. The utility model controls the vibration of the supporting plate through the vibration structure, so that materials that meet the specifications can fall into the material discharge piece through the screening holes, and materials that do not meet the requirements cannot fall, so that the materials are discharged along the material discharge piece, thereby achieving the effect of screening.

[0004] The existing technology has the following problems:

[0005] The prior art only performs vibration during screening, which results in poor screening effect and easy leakage, reducing the practicality of the device. At the same time, the filter screen of the prior art is relatively troublesome to replace, reducing the practicality of the device. Utility Model Content

[0006] The utility model provides a vibrating material screening mechanism to solve the problems raised in the above background technology.

[0007] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0008] A vibrating screening mechanism comprises a screening box, the four corners of the bottom end of the screening box are fixedly connected to supporting legs, the bottom of the left end of the screening box is fixedly connected to a supporting plate, the top of the left end of the screening box is fixedly connected to a fixing plate, the top of the screening box is fixedly connected to a feeding port, the bottom end of the screening box is fixedly connected to a discharging port, the top of the supporting plate is fixedly connected to a swing mechanism, the top of the screening box is slidably connected to the screening mechanism, the swing mechanism comprises a motor, the bottom end of the motor is fixedly connected to the top end of the supporting plate, the screening mechanism comprises two connecting arms, the outer wall of the connecting arm is slidably connected to the top of the screening box, and the left part of the connecting arm located on the left part is fixedly connected to the top end of the fixing plate.

[0009] Preferably: the output end of the motor is fixedly connected to a fixed disk, the rear end of the fixed disk is fixedly connected to a ring by welding, the ring and the fixed disk are concentric circles, the cavity formed by the fixed disk and the ring is slidably connected to a movable rod, the rear end of the movable rod is rotatably connected to the fixed rod, the right end of the fixed rod is fixedly connected to a mounting plate, and the right end of the mounting plate is fixedly connected to the left end of the screening box.

[0010] Preferably: the front part of the movable rod is rotatably connected to a connecting rod, the top of the connecting rod is rotatably connected to a driving rod, the right part of the driving rod is rotatably connected to a slide plate, the bottom end of the slide plate is slidably connected to the top end of a fixed plate, the bottom end of the slide plate is fixedly connected to a guide block, and the outer wall of the guide block is slidably connected to the inner wall of the fixed plate.

[0011] Preferably: the left end of the mounting plate is fixedly connected to a fixing box, the inner wall of the fixing box is rotatably connected to a threaded rod, the outer wall of the threaded rod is threadedly connected to a slider, the left end of the slider is fixedly connected to a support rod, and the left part of the support rod is slidably connected to the inner wall of the connecting rod.

[0012] Preferably, one end of the connecting arm is fixedly connected to a screening frame, the bottom of the screening frame is slidably connected to a screening net, and the bottom of the screening frame is fixedly connected to a vibration motor.

[0013] Preferably: a limiting rod is inserted into the bottom of the screening frame, the outer wall of the limiting rod is inserted into the inner wall of the screening net, one end of the limiting rod is fixedly connected to a spring, and one end of the spring is fixedly connected to one end of the screening frame.

[0014] Due to the adoption of the above technical solution, the utility model has achieved the following technical progress compared with the prior art:

[0015] 1. The utility model provides a vibrating screening mechanism, which drives the fixed disk and the circular ring to rotate synchronously by starting the motor, so that the movable rod slides in the cavity formed by the fixed disk and the circular ring, thereby the movable rod drives the connecting rod to rotate synchronously, drives the driving rod to move, the driving rod drives the slide plate to move synchronously, the slide plate drives the connecting arm to move synchronously, and the connecting arm drives the screening frame to move synchronously, thereby making the screening frame swing left and right, achieving a swinging effect.

[0016] 2. The utility model provides a vibrating screening mechanism. When the screening net needs to be replaced, the limit rod is pulled to drive the spring to extend so that the outer wall of the limit rod is no longer plugged into the inner wall of the screening net. Then the screening net can be removed for replacement or maintenance, which makes replacement easy. BRIEF DESCRIPTION OF THE DRAWINGS

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

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

[0019] Figure 3 It is a structural schematic diagram of the swing mechanism of the utility model;

[0020] Figure 4 It is a structural schematic diagram of the screening mechanism of the utility model;

[0021] Figure 5 For this utility model Figure 4 Enlarged structural diagram at A in the middle.

[0022] In the figure: 1. screening box; 11. supporting legs; 12. supporting plate; 13. fixing plate; 14. feeding port; 15. discharging port; 2. swing mechanism; 21. motor; 22. fixing plate; 23. ring; 24. movable rod; 241. fixing rod; 242. mounting plate; 25. connecting rod; 251. driving rod; 26. fixing box; 27. threaded rod; 28. sliding block; 281. supporting rod; 29. ​​sliding plate; 291. guide block; 3. screening mechanism; 31. screening frame; 32. connecting arm; 33. screening net; 34. limiting rod; 35. spring; 36. vibration motor. DETAILED DESCRIPTION

[0023] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0024] like Figure 1-Figure 4 As shown, a vibrating screening mechanism comprises a screening box 1, the four corners of the bottom end of the screening box 1 are fixedly connected with supporting legs 11, the bottom of the left end of the screening box 1 is fixedly connected with a supporting plate 12, the top of the left end of the screening box 1 is fixedly connected with a fixing plate 13, the top of the screening box 1 is fixedly connected with a feeding port 14, the bottom end of the screening box 1 is fixedly connected with a discharging port 15, the top of the supporting plate 12 is fixedly connected with a swing mechanism 2, the top of the screening box 1 is slidably connected with a screening mechanism 3, the swing mechanism 2 comprises a motor 21, the bottom end of the motor 21 is fixedly connected to the top of the supporting plate 12, the screening mechanism 3 comprises two connecting arms 32, the outer wall of the connecting arm 32 is slidably connected to the top of the screening box 1, and the left part of the left connecting arm 32 is fixedly connected to the top of the fixing plate 13.

[0025] The plastic particles to be screened are poured into the screening frame 31 through the feed port 14, and then the screening mechanism 3 is driven to swing by the swing mechanism 2, and the screening mechanism 3 screens the plastic particles at the same time, thereby accelerating the screening efficiency.

[0026] like Figure 2 , Figure 3As shown, the output end of the motor 21 is fixedly connected to a fixed disk 22, and the rear end of the fixed disk 22 is fixedly connected to a ring 23 by welding. The ring 23 and the fixed disk 22 are concentric circles, and the cavity formed by the fixed disk 22 and the ring 23 is slidably connected to a movable rod 24, and the rear end of the movable rod 24 is rotatably connected to a fixed rod 241, and the right end of the fixed rod 241 is fixedly connected to a mounting plate 242, and the right end of the mounting plate 242 is fixedly connected to the left end of the screening box 1, and the front part of the movable rod 24 is rotatably connected to a connecting rod 25, and the top of the connecting rod 25 is rotatably connected to a driving rod 251, and the right part of the driving rod 251 is rotatably connected to a slide plate 29, and the bottom end of the slide plate 29 is slidably connected to the top end of the fixed plate 13, and the bottom end of the slide plate 29 is fixedly connected to a guide block 291, and the outer wall of the guide block 291 is slidably connected to the inner wall of the fixed plate 13.

[0027] By starting the motor 21, the fixed disk 22 is driven to rotate, so that the fixed disk 22 drives the ring 23 to rotate synchronously. Because the output end of the motor 21 is not connected to the axis of the fixed disk 22, when the motor 21 rotates, the fixed disk 22 and the ring 23 rotate with the center point of the current motor 21 output end as the origin, so that the movable rod 24 slides in the cavity formed by the fixed disk 22 and the ring 23, thereby causing the movable rod 24 to rotate, driving the connecting rod 25 to rotate synchronously, and the connecting rod 25 rotates around the shaft rod at the top of the support rod 281, driving the driving rod 251 to move, so that the driving rod 251 drives the slide plate 29 to move synchronously, and the slide plate 29 drives the guide block 291 to slide on the inner wall of the fixed plate 13, and the guide block 291 guides the slide plate 29, so that the slide plate 29 can only translate on the inner wall of the fixed plate 13, and at the same time, the slide plate 29 drives the connecting arm 32 to move synchronously, so that the connecting arm 32 drives the screening frame 31 to move synchronously, thereby causing the screening frame 31 to swing left and right, achieving a swinging effect.

[0028] like Figure 2 , Figure 3 As shown, the left end of the mounting plate 242 is fixedly connected to a fixed box 26, the inner wall of the fixed box 26 is rotatably connected to a threaded rod 27, the outer wall of the threaded rod 27 is threadedly connected to a slider 28, the left end of the slider 28 is fixedly connected to a support rod 281, and the left part of the support rod 281 is slidably connected to the inner wall of the connecting rod 25.

[0029] By rotating the threaded rod 27, the slider 28 moves on the outer wall of the threaded rod 27, and the slider 28 drives the support rod 281 to move synchronously, so that the support rod 281 slides on the inner wall of the connecting rod 25, thereby changing the position of the support rod 281 on the inner wall of the connecting rod 25, so that the rotation axis point of the connecting rod 25 is changed, thereby changing the rotation amplitude of the connecting rod 25, thereby changing the movement form of the slide plate 29, and the slide plate 29 drives the connecting arm 32 to move synchronously, thereby changing the swing amplitude of the screening frame 31, thereby achieving the effect of changing the swing amplitude.

[0030] like Figure 2 , Figure 4 As shown, one end of the connecting arm 32 is fixedly connected to the screening frame 31 , the bottom of the screening frame 31 is slidably connected to the screening net 33 , and the bottom of the screening frame 31 is fixedly connected to the vibration motor 36 .

[0031] By starting the vibration motor 36 , the screening frame 31 is driven to vibrate, and the screening frame 31 drives the screening net 33 to vibrate synchronously, thereby screening the plastic particles in the screening frame 31 .

[0032] like Figure 4 , Figure 5 As shown, a limiting rod 34 is inserted into the bottom of the screening frame 31, the outer wall of the limiting rod 34 is inserted into the inner wall of the screening net 33, one end of the limiting rod 34 is fixedly connected to a spring 35, and one end of the spring 35 is fixedly connected to one end of the screening frame 31.

[0033] When the screening net 33 needs to be replaced, the limiting rod 34 is pulled to extend the spring 35 so that the outer wall of the limiting rod 34 is no longer plugged into the inner wall of the screening net 33. The screening net 33 can then be removed for replacement or maintenance, which makes replacement easier.

[0034] The working principle of the utility model is as follows: when in use, the plastic particles to be screened are poured into the screening frame 31 through the feed port 14, and then the vibration motor 36 and the motor 21 are started, and the screening frame 31 is vibrated by the vibration motor 36, and at the same time, the motor 21 drives the fixed disk 22 to rotate, so that the fixed disk 22 drives the ring 23 to rotate synchronously. Because the output end of the motor 21 is not connected to the axis of the fixed disk 22, when the motor 21 rotates, the fixed disk 22 and the ring 23 rotate with the center point of the current output end of the motor 21 as the origin, so that the movable rod 24 is fixed. The disk 22 and the ring 23 slide in the cavity formed by the disk 22, thereby rotating the movable rod 24, driving the connecting rod 25 to rotate synchronously, and the connecting rod 25 rotates around the shaft rod at the top of the support rod 281, driving the driving rod 251 to move, so that the driving rod 251 drives the slide plate 29 to move synchronously, and the slide plate 29 drives the guide block 291 to slide on the inner wall of the fixed plate 13, and the guide block 291 guides the slide plate 29, so that the slide plate 29 can only translate on the inner wall of the fixed plate 13, and at the same time, the slide plate 29 drives the connecting arm 32 to move synchronously, so that the connecting arm 32 drives the screening frame 31 to move synchronously, As a result, the screening frame 31 swings left and right, achieving a swinging effect, and the screening frame 31 drives the screening net 33 to move synchronously, and the screening net 33 screens the plastic particles in the screening frame 31, thereby improving the screening efficiency. After that, the swing amplitude can be adjusted as needed, and the slider 28 moves on the outer wall of the threaded rod 27 by rotating the threaded rod 27. The slider 28 drives the support rod 281 to move synchronously, so that the support rod 281 slides on the inner wall of the connecting rod 25, thereby changing the position of the support rod 281 on the inner wall of the connecting rod 25, so that the connecting rod 25 The rotation axis changes, thereby changing the rotation amplitude of the connecting rod 25, thereby changing the movement of the slide plate 29. The slide plate 29 drives the connecting arm 32 to move synchronously, thereby changing the swing amplitude of the screening frame 31, thereby changing the swing amplitude. Subsequently, when the screening net 33 needs to be replaced, the limit rod 34 is pulled to drive the spring 35 to extend, so that the outer wall of the limit rod 34 is no longer connected with the inner wall of the screening net 33. Then the screening net 33 can be removed and replaced or maintained, which makes it easy to replace, thereby greatly improving the user experience.

[0035] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A vibrating screening mechanism, comprising a screening box (1), characterized in that: The four corners of the bottom end of the screening box (1) are fixedly connected to support legs (11), the bottom of the left end of the screening box (1) is fixedly connected to a support plate (12), the top of the left end of the screening box (1) is fixedly connected to a fixed plate (13), the top of the screening box (1) is fixedly connected to a feed port (14), the bottom of the screening box (1) is fixedly connected to a discharge port (15), the top of the support plate (12) is fixedly connected to a swing mechanism (2), the top of the screening box (1) is slidably connected to a screening mechanism (3), the swing mechanism (2) comprises a motor (21), the bottom end of the motor (21) is fixedly connected to the top of the support plate (12), the screening mechanism (3) comprises two connecting arms (32), the outer wall of the connecting arm (32) is slidably connected to the top of the screening box (1), and the left part of the connecting arm (32) located on the left is fixedly connected to the top of the fixed plate (13).

2. A vibrating screening mechanism according to claim 1, characterized in that: The output end of the motor (21) is fixedly connected to a fixed disk (22), the rear end of the fixed disk (22) is fixedly connected to a circular ring (23) by welding, the circular ring (23) and the fixed disk (22) are concentric circles, a movable rod (24) is slidably connected to the cavity formed by the fixed disk (22) and the circular ring (23), the rear end of the movable rod (24) is rotatably connected to a fixed rod (241), the right end of the fixed rod (241) is fixedly connected to a mounting plate (242), and the right end of the mounting plate (242) is fixedly connected to the left end of the screening box (1).

3. A vibrating screening mechanism according to claim 2, characterized in that: The front part of the movable rod (24) is rotatably connected to a connecting rod (25), the top of the connecting rod (25) is rotatably connected to a driving rod (251), the right part of the driving rod (251) is rotatably connected to a slide plate (29), the bottom end of the slide plate (29) is slidably connected to the top end of the fixed plate (13), the bottom end of the slide plate (29) is fixedly connected to a guide block (291), and the outer wall of the guide block (291) is slidably connected to the inner wall of the fixed plate (13).

4. A vibrating screening mechanism according to claim 2, characterized in that: The left end of the mounting plate (242) is fixedly connected to a fixing box (26), the inner wall of the fixing box (26) is rotatably connected to a threaded rod (27), the outer wall of the threaded rod (27) is threadedly connected to a slider (28), the left end of the slider (28) is fixedly connected to a support rod (281), and the left part of the support rod (281) is slidably connected to the inner wall of the connecting rod (25).

5. A vibrating screening mechanism according to claim 1, characterized in that: One end of the connecting arm (32) is fixedly connected to a screening frame (31), the bottom of the screening frame (31) is slidably connected to a screening net (33), and the bottom of the screening frame (31) is fixedly connected to a vibration motor (36).

6. A vibrating screening mechanism according to claim 5, characterized in that: A limiting rod (34) is inserted at the bottom of the screening frame (31), the outer wall of the limiting rod (34) is inserted into the inner wall of the screening net (33), one end of the limiting rod (34) is fixedly connected to a spring (35), and one end of the spring (35) is fixedly connected to one end of the screening frame (31).

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