Screening equipment for plastic particle production

Abstract

The utility model discloses screening equipment for plastic particle production. The screening equipment comprises a screening box, a screen, a moving box, a mounting plate and a cleaning column. The screen is arranged on the inner wall of the screening box, the moving box reciprocates in the screening box, a lifting mechanism is arranged in the moving box, the mounting plate is connected with the lifting mechanism, the mounting plate is located outside the moving box, the cleaning column is fixedly arranged on the mounting plate, and the cleaning column is configured to be driven by the lifting mechanism to ascend and descend to clean meshes of the screen. The utility model particularly provides screening equipment for plastic particle production, which can clean meshes of a screen and prevent plastic particles from being blocked in the meshes of the screen to affect the screening effect of the screen.

Description

TECHNICAL FIELD

[0001] The utility model belongs to plastic production technical field, concretely is a kind of screening equipment for plastic particle production. BACKGROUND

[0002] In industrial production, plastic raw materials are extruded by an extruder to become a strip-shaped body, and then the strip-shaped body is cut into granular finished products. During the cutting process, some particles may not be cut properly, resulting in some plastic particles not meeting the use specifications, so a screening device is needed to screen the plastic particles after cutting.

[0003] Currently, a vibrating screen is usually used to screen plastic particles. In actual use, as the screening time of the screen increases, some screen holes may be blocked by plastic particles, thereby affecting the subsequent screening efficiency of the screen. UTILITY MODEL CONTENTS

[0004] To overcome the above-mentioned defects, the utility model provides a screening device for plastic particle production to solve the problem of affecting the screening efficiency of the screen due to the blocking of the screen holes by plastic particles.

[0005] The utility model provides the following technical scheme: the utility model provides a screening device for plastic particle production, comprising:

[0006] a screening box;

[0007] a screen provided on the inner wall of the screening box;

[0008] a moving box reciprocally moving in the screening box, and a lifting mechanism provided in the moving box;

[0009] a mounting plate connected to the lifting mechanism, and the mounting plate is located outside the moving box;

[0010] a cleaning column fixedly provided on the mounting plate, and the cleaning column is configured to be driven by the lifting mechanism to lift and clean the screen holes.

[0011] Further, the lifting mechanism comprises:

[0012] a lifting motor fixedly provided on the side wall of the moving box;

[0013] a lifting disc connected to the output shaft of the lifting motor;

[0014] a lifting drive column eccentrically fixedly provided on the lifting disc;

[0015] a lifting plate, and a lifting sliding groove is formed in the lifting plate, and the lifting drive column is slidingly engaged in the lifting sliding groove;

[0016] The lifting column is fixedly connected with the lifting plate, penetrates through the bottom wall of the moving box and is arranged to slide along the bottom wall of the moving box.

[0017] Further, a moving screw rod is arranged to rotate on the inner wall of the screening box, a moving motor is fixedly arranged on the side wall of the screening box, and one end of the moving screw rod is connected with the output shaft of the moving motor.

[0018] A guide sliding rod is fixedly arranged on the inner wall of the screening box and is arranged in parallel with the moving screw rod.

[0019] The two groups of moving boxes are arranged symmetrically, one group of the moving boxes is connected with the moving screw rod through threads, the other group of the moving boxes is arranged to slide on the guide sliding rod, and an adapter plate is arranged between the two groups of the moving boxes.

[0020] Further, a feeding port is arranged on the top wall of the screening box, a discharging port is formed in the side wall of the screening box, a guide plate is arranged at the discharging port, and a discharging port is formed in the guide plate.

[0021] The screening net and one end of the bottom wall of the screening box correspond to the discharging port, and the discharging ports of the multiple groups of guide plates are arranged in a staggered manner.

[0022] Further, the screening net and the bottom wall of the screening box are arranged in an inclined manner, and the height of the screening net and the bottom wall of the screening box near one end of the discharging port is lower than the height of the other end.

[0023] Further, the screening net comprises a solid plate part and a net body part, and the solid plate part is located below the feeding port.

[0024] Further, a vibrator is arranged in the middle of the bottom wall of the screening box, and a vibration support assembly is arranged on the bottom wall of the screening box.

[0025] The vibration support assembly comprises a sleeve, a sliding rod and a vibration spring, a base is fixedly installed at the lower end of the sleeve, the sliding rod is arranged to slide in the sleeve, the sliding rod is connected with the bottom wall of the screening box, the vibration spring is sleeved outside the sleeve and the sliding rod, and the two ends of the vibration spring are connected with the bottom wall of the screening box and the base, respectively.

[0026] The beneficial effects achieved by the above structure are as follows:

[0027] Through the arrangement of the moving box that can move in the screening box and the lifting mechanism in the moving box, the cleaning column is driven to move horizontally and longitudinally relative to the screening net, the mesh of the screening net is cleaned when the cleaning column moves longitudinally, and the influence of the plastic particles on the screening efficiency caused by being stuck in the mesh is avoided. BRIEF DESCRIPTION OF DRAWINGS

[0028] The accompanying drawings are used to provide further understanding of the present application, and constitute a part of the specification, and are used to explain the present application together with embodiments of the present application, and do not constitute a limitation to the present application. In the drawings:

[0029] Figure 1 It is a schematic diagram of the overall structure of the present application;

[0030] Figure 2 It is a schematic diagram of the overall structure of the present application;

[0031] Figure 3 It is Figure 2 A partial enlarged view of part A;

[0032] Figure 4 It is a schematic diagram of the overall structure of the present application;

[0033] Among them, 1, screening box, 2, screen, 3, moving box, 4, mounting plate, 5, cleaning column, 6, lifting motor, 7, lifting disc, 8, lifting drive column, 9, lifting plate, 10, lifting chute, 11, lifting column, 12, moving threaded rod, 13, moving motor, 14, guide slide rod, 15, connecting plate, 16, feed inlet, 17, discharge outlet, 18, guide plate, 19, discharge port, 20, vibrator, 21, sleeve, 22, slide rod, 23, vibration spring, 24, base. DETAILED DESCRIPTION

[0034] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0035] It should be noted that the words "front", "back", "left", "right", "up" and "down" used in the following description refer to the directions in the drawings, and the words "in" and "out" refer to the directions towards or away from the geometric center of a particular component.

[0036] As Figures 1-4 shown, the present application provides a screening device for plastic particle production,

[0037]

[0038] Screening box 1;

[0039] Screen 2, screen 2 is arranged on the inner wall of screening box 1, screen 2 is used for screening plastic particles; ​

[0040] The moving box 3 reciprocally moves in the screening box 1, and the moving box 3 is internally provided with a lifting mechanism;

[0041] The mounting plate 4 is connected with the lifting mechanism, and the mounting plate 4 is located outside the moving box 3;

[0042] The cleaning column 5 is fixedly arranged on the mounting plate 4, and the cleaning column 5 is configured to be driven to lift by the lifting mechanism to clean the mesh holes of the screen 2.

[0043] In use, the cleaning column 5 is lifted under the driving action of the lifting mechanism, and the plastic particles jammed in the mesh holes of the screen 2 are pushed out when the cleaning column 5 descends, so as to avoid the mesh holes of the screen 2 from being blocked and ensure the screening efficiency of the screen 2.

[0044] Specifically, referring to Figure 3 and Figure 4 In this embodiment, the lifting mechanism comprises:

[0045] The lifting motor 6 is fixedly arranged on the side wall of the moving box 3;

[0046] The lifting disc 7 is connected with the output shaft of the lifting motor 6;

[0047] The lifting driving column 8 is eccentrically fixedly arranged on the lifting disc 7;

[0048] The lifting plate 9 is provided with the lifting sliding groove 10, and the lifting driving column 8 is slidingly arranged in the lifting sliding groove 10;

[0049] The lifting column 11 is fixedly connected with the lifting plate 9, the lifting column 11 penetrates through the bottom wall of the moving box 3 and is slidingly arranged along the bottom wall of the moving box 3, and the mounting plate 4 is connected with the lifting column 11.

[0050] In use, the lifting disc 7 is driven to rotate under the action of the lifting motor 6, the lifting disc 7 drives the lifting driving column 8 to synchronously rotate when the lifting disc 7 rotates, the lifting driving column 8 exerts force on the lifting plate 9 while sliding in the lifting sliding groove 10, the lifting plate 9 drives the lifting column 11 to lift along the bottom wall of the moving box 3, and the lifting column 11 drives the cleaning column 5 to descend through the mounting plate 4 when the lifting column 11 descends along the bottom wall of the moving box 3, so as to dredge the mesh holes of the screen 2 and avoid the plastic particles from being jammed in the mesh holes of the screen 2.

[0051] Specifically, referring to Figure 2 and Figure 4 In this embodiment, the moving screw rod 12 is rotatably arranged on the inner wall of the screening box 1, the moving motor 13 is fixedly arranged on the side wall of the screening box 1, and one end of the moving screw rod 12 is connected with the output shaft of the moving motor 13;

[0052] The guiding sliding rod 14 is fixedly arranged on the inner wall of the screening box 1 and is arranged in parallel with the moving screw rod 12;

[0053] The mobile box 3 is symmetrically provided with two groups, one group of mobile box 3 is connected with the mobile threaded rod 12 through thread, and the other group of mobile box 3 is slidably arranged on the guide sliding rod 14, and the two groups of mobile box 3 are provided with the connecting plate 15.

[0054] In use, the mobile threaded rod 12 is driven to rotate under the action of the mobile motor 13, and through the connection of the connecting plate 15, the two groups of mobile box 3 are driven to move synchronously under the combined action of the driving of the mobile threaded rod 12 and the guidance of the guide sliding rod 14, so as to adjust the position of the cleaning column 5 relative to the screen 2, so as to realize the cleaning of different positions of the screen 2.

[0055] It should be noted that the setting of one group of mobile threaded rods 12 and one group of guide sliding rods 14 is only an implementation mode, and in specific implementation, two groups of mobile threaded rods 12 that rotate synchronously can also be used to drive the movement of the two groups of mobile box 3. In addition, in order to adapt to the lifting action of the cleaning column 5, in the embodiment, the mobile motor 13 is a timing gap rotating motor, which is a prior art.

[0056] In use, when the mobile box 3 is moved under the rotation of the mobile motor 13, the cleaning column 5 moves upward, and when the mobile motor 13 pauses, the cleaning column 5 moves downward. Through the cooperation of the above actions, the technical effect of cleaning the screen holes of the screen 2 by the cleaning column 5 is realized.

[0057] Specifically, referring to Figure 1 In the embodiment, the top wall of the screening box 1 is provided with a feeding port 16, and the side wall of the screening box 1 is provided with a discharging port 17. The discharging port 17 is provided with a guide plate 18, and the guide plate 18 is provided with a discharging port 19.

[0058] The screen 2 and one end of the bottom wall of the screening box 1 correspond to the discharging port 17, and the discharging ports 19 of the plurality of guide plates 18 are arranged in a staggered manner, so as to avoid mutual interference of the plurality of discharging ports 17.

[0059] It should be noted that the drawings provided in the embodiment only have one group of screen 2, and according to specific screening requirements, two or more groups of screen 2 can be arranged.

[0060] Specifically, referring to Figure 4 In the embodiment, the bottom wall of the screen 2 and the screening box 1 is inclined, and the height of the screen 2 and the bottom wall of the screening box 1 close to one end of the discharging port 17 is lower than the height of the other end. The screen 2 includes a solid plate part and a mesh body part, and the solid plate part is located below the feeding port 16. Through the arrangement of the solid plate part, it is ensured that the cleaning column 5 can cover the entire mesh body part.

[0061] Specifically, referring to Figure 1 and Figure 4In the embodiment, the middle of the bottom wall of the screening box 1 is provided with a vibrator 20, and the bottom wall of the screening box 1 is provided with a vibration support assembly;

[0062] The vibration support assembly comprises a sleeve 21, a sliding rod 22 and a vibration spring 23, the lower end of the sleeve 21 is fixedly provided with a base 24, the sliding rod 22 is slidingly arranged in the sleeve 21, the sliding rod 22 is connected with the bottom wall of the screening box 1, the vibration spring 23 is sleeved on the sleeve 21 and the sliding rod 22, and the two ends of the vibration spring 23 are connected with the bottom wall of the screening box 1 and the base 24 respectively.

[0063] In use, the screening box 1 is vibrated by the cooperation of the vibrator 20 and the vibration support assembly, the screening efficiency is improved, and the plastic particles can smoothly fall from the discharging port 19 along the guide plate 18.

[0064] The screening device for plastic particle production provided in the embodiment has the following working principle:

[0065] Screening working principle:

[0066] The plastic particles are added into the screening box 1 through the feeding port 16, the screening box 1 is vibrated as a whole under the action of the vibrator 20, and the vibration support assembly is matched in the vibration process. The screening of the plastic particles is completed through the screen 2 when the screening box 1 vibrates. After screening, the plastic particles slide to the guide plate 18 through the discharging port 17 under the action of vibration, and are discharged through the discharging port 19.

[0067] Cleaning working principle:

[0068] After the screen 2 is used for a certain period of time, the moving motor 13 is started, the moving motor 13 drives the moving threaded rod 12 to rotate, and the moving box 3 is driven to move under the driving of the moving threaded rod 12 and the guidance of the guide sliding rod 14. Under the action of the link plate, the two groups of moving boxes 3 move synchronously, and the transverse positions of the cleaning column 5 and the screen 2 are adjusted through the movement of the moving box 3. Since the moving motor 13 is a constant-gear motor, when the moving motor 13 stops working, the lifting motor 6 drives the lifting driving column 8 to move downward through the lifting disc 7, the lifting driving column 8 moves downward to drive the lifting plate 9 and the lifting column 11 to move downward, the lifting column 11 exerts a downward pushing force on the mounting plate 4, so as to drive the cleaning column 5 to move downward to clean the screen holes of the screen 2, and avoid that the plastic particles are jammed in the screen holes of the screen 2.

[0069] It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting; it is not intended to exclude myriad other embodiments of the present application that other presenters can develop. That is, although the present application has been described in language specific to structural features, methodological acts, and computer code indicated in the figures and the specification, the present application is clearly not limited to the features, acts, and code illustrated or described. Rather, the scope of the present application is to be understood only as defined by the appended claims and equivalents thereof.

[0070] While the embodiments of the present application have been illustrated and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the spirit and scope of the application, which is defined by the appended claims and their equivalents.

Claims

1. A screening apparatus for plastic particle production, characterized by, The utility model relates to a screening box, which comprises a screening box (1), a screen (2) arranged on the inner wall of the screening box (1), a moving box (3) reciprocally moving in the screening box (1), a lifting mechanism arranged in the moving box (3), a mounting plate (4) connected with the lifting mechanism and located outside the moving box (3), a cleaning column (5) fixedly arranged on the mounting plate (4) and configured to be driven by the lifting mechanism to lift and clean the screen (2). The lifting mechanism comprises a lifting motor (6) fixedly arranged on the side wall of the moving box (3), a lifting disc (7) connected with the output shaft of the lifting motor (6), an eccentric lifting drive column (8) fixedly arranged on the lifting disc (7), a lifting plate (9) provided with a lifting sliding groove (10), the lifting drive column (8) being slidingly arranged in the lifting sliding groove (10), and a lifting column (11) fixedly connected with the lifting plate (9) and penetrating through the bottom wall of the moving box (3) and slidingly arranged along the bottom wall of the moving box (3), the mounting plate (4) being connected with the lifting column (11). A moving screw rod (12) is rotatably arranged on the inner wall of the screening box (1), a moving motor (13) is fixedly arranged on the side wall of the screening box (1), and one end of the moving screw rod (12) is connected with the output shaft of the moving motor (13). A guide sliding rod (14) is fixedly arranged on the inner wall of the screening box (1) and arranged in parallel with the moving screw rod (12). Two groups of the moving boxes (3) are symmetrically arranged, one group of the moving boxes (3) is connected with the moving screw rod (12) through threads, the other group of the moving boxes (3) is slidingly arranged on the guide sliding rod (14), and an adapter plate (15) is arranged between the two groups of the moving boxes (3). An inlet (16) is arranged on the top wall of the screening box (1), an outlet (17) is arranged on the side wall of the screening box (1), a guide plate (18) is arranged at the outlet (17), and a discharge port (19) is arranged on the guide plate (18).

2. The screening apparatus for plastic particle production according to claim 1, wherein The screen (2) and one end of the bottom wall of the screening box (1) correspond to the outlet (17), and the discharge ports (19) of the multiple groups of guide plates (18) are arranged in a staggered manner. The bottom walls of the screen (2) and the screening box (1) are both arranged in an inclined manner, and the height of the end of the bottom wall of the screen (2) and the bottom wall of the screening box (1) close to the outlet (17) is lower than the height of the other end. The screen (2) comprises a solid plate part and a mesh body part, and the solid plate part is located below the inlet (16). A vibrator (20) is arranged in the middle of the bottom wall of the screening box (1), and a vibration support assembly is arranged on the bottom wall of the screening box (1). ​ ​ 3. The screening apparatus for plastic particle production according to claim 1, wherein ​ ​ ​ 4. The screening apparatus for plastic particle production according to claim 1, wherein ​ ​ 5. The screening apparatus for plastic particle production according to claim 4, wherein ​ 6. The screening apparatus for plastic particle production according to claim 4, wherein ​ 7. The screening apparatus for plastic particle production according to claim 1, wherein ​ The vibration supporting assembly comprises a sleeve (21), a sliding rod (22) and a vibration spring (23), the lower end of the sleeve (21) is fixedly provided with a base (24), the sliding rod (22) is slidingly arranged in the sleeve (21), the sliding rod (22) is connected with the bottom wall of the screening box (1), the vibration spring (23) is sleeved outside the sleeve (21) and the sliding rod (22), and the two ends of the vibration spring (23) are connected with the bottom wall of the screening box (1) and the base (24) respectively.

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