Screening device for PE plastic particle production

Abstract

The utility model relates to the technical field of PE plastic particle production, in particular to a screening device for PE plastic particle production, which comprises screening cylinders rotationally connected to an inner cavity of a screening box, the screening cylinders are in one-to-one correspondence with inlets of the screening box, and an inner cavity of each screening cylinder is provided with a static electricity removing mechanism. The static electricity removing mechanism comprises two static electricity removing agent containing grooves which are formed in an inner cavity of the screening box and located on the two sides of an inlet, the inner cavity of the screening box is horizontally and slidably connected with a blocking plate used for blocking outlets of the static electricity removing agent containing grooves, and the blocking plate horizontally slides to enable static electricity removing agents in the static electricity removing agent containing grooves to enter the screening barrel. Through horizontal reciprocating sliding of the blocking plate, intermittent discharging of an electrostatic eliminating agent is conveniently achieved, so that electrostatic eliminating of the equipment on PE plastic particles is facilitated, and the overall screening efficiency of the equipment is conveniently guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of PE plastic granule production technology, specifically to a screening device for PE plastic granule production. Background Technology

[0002] The existing PE plastic granule screening device generally consists of a screen set on a vibrating frame, with a spring below the vibrating frame to invert the raw material directly onto the screen. A transmission structure is then set at one end of the motor to drive the vibrating frame to vibrate, thereby performing screening.

[0003] In the prior art, there is a utility model patent with publication number CN219686248U entitled "A PE Particle Screening Device", which includes a support frame 1 and a support frame 2. A filter roller is mounted on top of the support frame 1 and the support frame 2. A support plate 1 is fixed to one side of the support frame 1. An electromagnetic motor is fixed above one side of the support plate 1. A small gear is fixed to one end of the electromagnetic motor. A large gear ring is fixed to the side of one end of the filter roller. A support plate 2 is fixed to one side of the support frame 2. A connecting column is fixed between the support plate 1 and the support plate 2. A brush is fixed to the top of the connecting column. This utility model can continuously screen PE plastic particles without jamming.

[0004] Because PE plastic granules are prone to static electricity, they attract each other and form clumps. The patented equipment does not have any mechanism to remove static electricity from the PE plastic granules, which can easily affect the overall screening efficiency of the equipment. Utility Model Content

[0005] The purpose of this invention is to provide a screening device for the production of PE plastic granules.

[0006] The technical problem solved by this utility model is that the existing equipment does not have a static electricity removal mechanism for PE plastic particles, which can easily affect the overall screening efficiency of the equipment.

[0007] This utility model can be achieved through the following technical solution: a screening device for PE plastic granule production, including a screening cylinder rotatably connected to the inner cavity of a screening box, the screening cylinder corresponding one-to-one with the inlet of the screening box, the inner cavity of the screening cylinder being provided with an antistatic mechanism, the antistatic mechanism including two antistatic agent receiving tanks opened in the inner cavity of the screening box and located on both sides of the inlet, the inner cavity of the screening box being horizontally slidably connected with a sealing plate for blocking the outlet of the antistatic agent receiving tank, the horizontally sliding sealing plate allowing the antistatic agent in the antistatic agent receiving tank to enter the screening cylinder.

[0008] A further technical improvement of this utility model is that: the inner cavity of the screening box is provided with a driving assembly for the horizontal sliding of the sealing plate. The driving assembly includes at least two second arc-shaped protrusions symmetrically fixed to the outer peripheral wall of the screening cylinder. Both sides of the screening box are horizontally elastically slidably connected with sliding rods. The sliding rods are fixedly connected to the sealing plate. One end of the sliding rod is fixedly installed with a sliding block that is horizontally slidably connected to the inner cavity of the screening box. One side of the sliding block is fixedly installed with a first arc-shaped protrusion that abuts against the second arc-shaped protrusion.

[0009] A further technical improvement of this utility model is that a servo motor is fixedly installed at the bottom of the screening box, a rotating shaft is fixedly installed at the output end of the servo motor, the outer peripheral wall of the rotating shaft is fixedly connected to the screening cylinder, and the servo motor is powered by an external power supply.

[0010] A further technical improvement of this utility model is that a stirring paddle assembly is fixedly sleeved on the outer peripheral wall of the rotating shaft and located in the inner cavity of the screening cylinder. During the rotation of the screening cylinder, the stirring paddle assembly will rotate synchronously with it, and the rotation of the stirring paddle assembly facilitates the stirring of PE plastic particles in the screening cylinder.

[0011] A further technical improvement of this utility model is that a discharge port is provided through the bottom of the screening box, and a receiving drawer for receiving PE plastic particles in the screening box is horizontally slidably connected to the bottom of the screening box. The installation position of the receiving drawer corresponds to the discharge port at the bottom of the screening box.

[0012] A further technical improvement of this utility model is that an antistatic soft brush is fixedly installed on the outer peripheral wall of the rotating shaft and below the screening cylinder, abutting against the bottom wall of the screening box. The antistatic soft brush is designed to prevent PE plastic particles from adhering to the brush during rotation, thus facilitating its use by the operator.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. This utility model utilizes the rotation of the screening cylinder to drive the guide funnel to rotate synchronously. The rotation of the guide funnel causes the second arc-shaped protrusion on its outer peripheral wall to press against the first arc-shaped protrusion on one side of the sliding block. When the first arc-shaped protrusion is pressed, the spring assembly on one side of the sliding block undergoes elastic deformation. As the sliding block slides, it drives the sealing plate to slide horizontally via the sliding rod. The sliding of the sealing plate allows the antistatic agent contained in the antistatic agent container to enter the screening box and mix with the PE plastic particles. This mixing facilitates the removal of static electricity from the PE plastic particles. Simultaneously, the rotation of the rotating shaft facilitates the synchronous rotation of the stirring paddle assembly. The rotation of the stirring paddle assembly not only facilitates the breaking up of the already agglomerated PE plastic particles but also accelerates the mixing of the antistatic agent and the PE plastic particles. When the second arc-shaped protrusion stops pressing against the first arc-shaped protrusion, the sealing plate will reset. The horizontal reciprocating sliding of the sealing plate facilitates the intermittent feeding of the antistatic agent, thereby facilitating the removal of static electricity from the PE plastic particles and ensuring the overall screening efficiency of the equipment.

[0015] 2. With the rotation of the screening cylinder, the centrifugal force causes the qualified PE plastic particles to be thrown out through the screening holes in the screening cylinder. The qualified PE plastic particles are pushed into the receiving drawer by the rotation of the anti-static soft brush. After screening is completed, the receiving drawer can be slid to remove them, thus meeting the needs of the staff. Attached Figure Description

[0016] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to the accompanying drawings.

[0017] Figure 1 This is a partial structural schematic diagram of the present invention;

[0018] Figure 2 This utility model Figure 1 A magnified view of a section at point A in the middle;

[0019] Figure 3 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 4 This utility model Figure 2 A magnified view of a section at point B.

[0021] In the picture:

[0022] 1. Screening box; 11. Servo motor; 12. Rotating shaft; 13. Screening cylinder; 14. Guide funnel; 15. Agitator assembly; 16. Anti-static soft brush; 17. Discharge port; 18. Receiving drawer;

[0023] 2. Cover plate; 21. Antistatic agent container tank; 22. Through groove; 23. Sealing plate; 24. L-shaped connecting plate; 25. Sliding rod; 26. Sliding block; 27. Spring assembly; 28. First arc-shaped protrusion; 29. ​​Second arc-shaped protrusion. Detailed Implementation

[0024] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.

[0025] Please see Figure 1-4 As shown, this embodiment provides a technical solution: a screening device for PE plastic granule production, including a screening box 1. The top wall of the screening box 1 is provided with an inlet to facilitate the entry of PE plastic granules. The inner cavity of the screening box 1 is provided with a screening mechanism, which includes a screening cylinder 13 rotatably connected to the inner cavity of the screening box 1. The inner cavity of the screening cylinder 13 is provided with a plurality of screening holes at equal intervals. The screening holes in the screening cylinder 13 are used to screen qualified PE plastic granules.

[0026] A guide funnel 14 corresponding to the inlet is fixedly installed on the screen cylinder 13. The guide funnel 14 is used to guide the PE plastic particles entering the screen cylinder 13 on the one hand, and to block the PE plastic particles thrown out of the screen cylinder 13 on the other hand, so as to make the equipment easier for the staff to use.

[0027] A servo motor 11 is fixedly installed at the bottom of the screening box 1. A rotating shaft 12 is fixedly installed at the output end of the servo motor 11. The outer peripheral wall of the rotating shaft 12 is fixedly connected to the inner cavity of the screening cylinder 13. An agitator assembly 15 is fixedly sleeved on the outer peripheral wall of the rotating shaft 12 and located in the inner cavity of the screening cylinder 13. The rotating shaft 12 is rotated by turning on the power of the servo motor 11. The rotation of the rotating shaft 12 drives the screening cylinder 13 and the agitator assembly 15 located in the inner cavity of the screening cylinder 13 to rotate. The rotation of the screening cylinder 13 facilitates the screening of PE plastic particles. The rotation of the agitator assembly 15 facilitates the stirring of the PE plastic particles in the screening cylinder 13. This not only facilitates the screening of PE plastic particles, but also facilitates the breaking up of clumps of PE plastic particles.

[0028] The bottom of the screening box 1 has a discharge port 17. The bottom of the screening box 1 is horizontally slidably connected to a receiving drawer 18 for receiving PE plastic particles in the screening box 1. The receiving drawer 18 corresponds to the discharge port 17. The outer peripheral wall of the rotating shaft 12, located below the screening cylinder 13, is fixedly fitted with an antistatic soft brush 16 that abuts against the inner bottom wall of the screening box 1. Rotating the rotating shaft 12 causes the antistatic soft brush 16 to rotate, thereby facilitating the uniform driving of the qualified PE plastic particles into the receiving drawer 18, which makes it easy for the staff to take them out and use them.

[0029] The inner cavity of the screening box 1 is also equipped with an antistatic mechanism. The antistatic mechanism includes two antistatic agent receiving tanks 21 opened in the inner cavity of the screening box 1 and located on both sides of the inlet. The inner cavity of the antistatic agent receiving tank 21 contains a certain amount of receiving agent. The inner cavity of the screening box 1 is horizontally slidably connected with a sealing plate 23 for sealing the outlet of the antistatic agent receiving tank 21.

[0030] A cover plate 2 for sealing the antistatic agent container tank 21 is detachably installed on the screening box 1. By removing the cover plate 2, it is convenient for the staff to replenish the antistatic agent in the antistatic agent container tank 21 regularly according to the actual use needs. The inner cavity of the cover plate 2 is provided with through grooves 22 that correspond one-to-one with the inlet.

[0031] Two sliding rods 25 are symmetrically and horizontally slidably connected on both sides of the screening box 1. A sliding block 26 is fixedly installed at one end of the sliding rod 25 and is horizontally slidably connected to the inner cavity of the screening box 1. A first arc-shaped protrusion 28 is fixedly installed on the side of the sliding block 26 away from the sliding rod 25. A second arc-shaped protrusion 29 that abuts against the first arc-shaped protrusion 28 is fixedly installed on the outer peripheral wall of the guide funnel 14.

[0032] A spring assembly 27 is fixedly installed on the side of the sliding block 26 near the sliding rod 25, and the side of the spring assembly 27 away from the sliding block 26 is fixedly connected to the inner wall of the screening box 1.

[0033] An L-shaped connecting plate 24, which is fixedly connected to the sealing plate 23, is fixedly sleeved on the outer peripheral wall of the sliding rod 25.

[0034] When using this utility model, the PE plastic particles to be screened are placed in the screening cylinder 13 of the screening box 1, and the PE plastic particles are easily guided by the guide funnel 14 fixed on the screening cylinder 13.

[0035] After the PE plastic granules are fed, the power of the servo motor 11 is turned on to make the rotating shaft 12 rotate. The rotation of the rotating shaft 12 causes the screening cylinder 13 to rotate synchronously. The rotation of the screening cylinder 13 drives the guide funnel 14 to rotate synchronously. The rotation of the guide funnel 14 causes the second arc-shaped protrusion 29 on its outer peripheral wall to squeeze the first arc-shaped protrusion 28 on one side of the sliding block 26. When the first arc-shaped protrusion 28 is squeezed, the spring assembly 27 on one side of the sliding block 26 will undergo elastic deformation. As the sliding block 26 slides, the sealing plate 23 is driven to slide horizontally through the sliding rod 25. The sliding of the sealing plate 23 allows the antistatic agent contained in the antistatic agent container 21 to enter the screening box 1 and mix with the PE plastic granules. The mixing of the two facilitates the removal of static electricity from the PE plastic granules. At the same time, the rotation of the rotating shaft 12 facilitates the synchronous rotation of the stirring paddle assembly 15. The rotation of the stirring paddle assembly 15 not only facilitates the breaking up of the already agglomerated PE plastic granules, but also facilitates the mixing of the antistatic agent and the PE plastic granules.

[0036] When the second arc-shaped protrusion 29 stops pressing the first arc-shaped protrusion 28, the sealing plate 23 will reset. The horizontal reciprocating sliding of the sealing plate 23 facilitates the intermittent feeding of the antistatic agent, thereby facilitating the equipment to remove static electricity from PE plastic particles.

[0037] As the screening cylinder 13 rotates, the centrifugal force causes the qualified PE plastic particles to be thrown out through the screening holes in the screening cylinder 13. The qualified PE plastic particles are pushed into the receiving drawer 18 by the rotation of the anti-static soft brush 16. After screening is completed, the particles can be easily removed by sliding the receiving drawer 18.

[0038] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A screening device for PE plastic granule production, comprising a screening cylinder (13) rotatably connected to the inner cavity of a screening box (1), wherein the screening cylinder (13) corresponds one-to-one with the inlet of the screening box (1), characterized in that: The inner cavity of the screening cylinder (13) is provided with an antistatic mechanism. The antistatic mechanism includes two antistatic agent receiving tanks (21) opened in the inner cavity of the screening box (1) and located on both sides of the inlet. The inner cavity of the screening box (1) is horizontally slidably connected with a sealing plate (23) for blocking the outlet of the antistatic agent receiving tank (21). The horizontally sliding sealing plate (23) allows the antistatic agent in the antistatic agent receiving tank (21) to enter the screening cylinder (13).

2. The screening device for PE plastic granule production according to claim 1, characterized in that, The inner cavity of the screening box (1) is provided with a driving assembly for the horizontal sliding of the sealing plate (23). The driving assembly includes at least two second arc-shaped protrusions (29) symmetrically fixed to the outer peripheral wall of the screening cylinder (13). Both sides of the screening box (1) are horizontally elastically slidably connected with sliding rods (25). The sliding rods (25) are fixedly connected to the sealing plate (23). One end of the sliding rod (25) is fixedly installed with a sliding block (26) that is horizontally slidably connected to the inner cavity of the screening box (1). One side of the sliding block (26) is fixedly installed with a first arc-shaped protrusion (28) that abuts against the second arc-shaped protrusions (29).

3. The screening device for PE plastic granule production according to claim 1, characterized in that, A servo motor (11) is fixedly installed at the bottom of the screening box (1), and a rotating shaft (12) is fixedly installed at the output end of the servo motor (11). The outer peripheral wall of the rotating shaft (12) is fixedly connected to the screening cylinder (13).

4. The screening device for PE plastic granule production according to claim 3, characterized in that, The outer peripheral wall of the rotating shaft (12) and the inner cavity of the screening cylinder (13) are fixedly fitted with a stirring paddle assembly (15).

5. The screening device for PE plastic granule production according to claim 3, characterized in that, The bottom end of the screening box (1) is provided with a discharge port (17), and the bottom end of the screening box (1) is horizontally slidably connected with a receiving drawer (18) for receiving PE plastic particles in the screening box (1).

6. The screening device for PE plastic granule production according to claim 5, characterized in that, An antistatic soft brush (16) is fixedly installed on the outer peripheral wall of the rotating shaft (12) and below the screening cylinder (13), which abuts against the inner bottom wall of the screening box (1).

Images