CN114178175B

CN114178175B - Plastic particle screening device and screening method for plastic granulation

Info

Publication number: CN114178175B
Application number: CN202111490108.XA
Authority: CN
Inventors: 肖广兴; 熊世杰; 邓志勇
Original assignee: Hunan Dengke Material Technology Co ltd
Current assignee: Hunan Dengke Material Technology Co ltd
Priority date: 2021-12-08
Filing date: 2021-12-08
Publication date: 2024-02-09
Anticipated expiration: 2041-12-08
Also published as: CN114178175A

Abstract

The invention is applicable to the technical field related to plastic processing, and provides a plastic particle screening device and a screening method for plastic granulation, wherein the plastic particle screening device comprises a mounting seat, a fixed shaft perpendicular to the mounting seat is fixedly arranged on the mounting seat, and a supporting rod is fixedly arranged on the upper part of the fixed shaft; the screening plate is connected with the side plate, and when the screening plate turns over, the side plate is driven to be opened by the connecting rod; the reset component is connected with the carrying box and the screening plate; the vibration assembly is arranged on the mounting seat and connected with the carrying box, and is matched with the elastic assembly arranged on the upper part of the fixed shaft to drive the carrying box to vibrate at high frequency; and the lifting assembly is connected with the carrying box and periodically lifts the carrying box to the abutting rod to abut against the screening plate, so that plastic particles are screened.

Description

Plastic particle screening device and screening method for plastic granulation

Technical Field

The invention belongs to the technical field related to plastic processing, and particularly relates to a plastic particle screening device and a plastic particle screening method for plastic granulation.

Background

The plastic particles refer to granular plastics, which are generally divided into more than 200 and are subdivided into thousands.

Common plastic particles are general plastic, engineering plastic and special plastic.

General purpose plastic: polypropylene, polyethylene, polyvinyl chloride, polystyrene, polyester, polyurethane, and the like.

Engineering plastics: nylon, polytetrafluoroethylene, polyoxymethylene, polycarbon silicone, and the like.

And (3) special plastic: thermosetting plastics, functional polymers, such as artificial kidneys.

In the production process of plastic particles, the sizes of the plastic particles are required to be strictly controlled generally for specific requirements, but in the use process of the existing plastic particle screening device, the plastic particles which do not meet the requirements need to be treated at fixed time, the filtering efficiency is affected by the plastic particles, and in the treatment process, the working efficiency is reduced because the plastic particles need to be stopped, so that the plastic particle screening device and the plastic particle screening method for plastic granulation are provided, the produced plastic particles are screened, and the probability that defective products flow into the market is reduced.

Disclosure of Invention

The invention provides a plastic particle screening device and a screening method for plastic granulation, and aims to solve the problem that plastic particles which do not meet the standard flow into the market.

The invention is realized in such a way that the plastic particle screening device and the screening method for plastic granulation comprise:

the mounting seat is horizontally arranged, a fixed shaft perpendicular to the mounting seat is fixedly arranged on the mounting seat, and a supporting rod is fixedly arranged on the upper part of the fixed shaft;

the receiving box is movably arranged on the mounting seat, a reversible screening plate is rotationally arranged in the receiving box, a plurality of through holes with the same diameter are formed in the screening plate at equal intervals to filter plastic particles with the same size, the screening plate is connected with a side plate movably arranged on the side wall of the receiving box through a connecting rod, and when the screening plate is turned over, the side plate is driven to be opened through the connecting rod;

the reset component is connected with the carrying box and the screening plate and is used for keeping the screening plate in a horizontal state and keeping the side plates in a closed state under the condition of no external force;

the vibration assembly is arranged on the mounting seat and connected with the carrying box, and is matched with the elastic assembly arranged on the upper part of the fixed shaft to drive the carrying box to vibrate at high frequency;

the lifting assembly is connected with the carrying box, and is matched with the elastic assembly to drive the carrying box to lift to the carrying box periodically when the carrying box vibrates at high frequency, the supporting rod is abutted to the screening plate so that the screening plate is overturned, and the lifting assembly is arranged on the mounting seat.

Furthermore, the vibration assembly is connected with the lifting assembly through a speed reduction assembly, and the speed reduction assembly comprises a mounting plate vertically and fixedly mounted on the mounting seat, a first gear rotatably mounted on the mounting plate and connected with the vibration assembly, and a second gear meshed with the first gear and rotatably mounted on the mounting plate;

and the second gear is connected with the picking assembly.

Still further, reset assembly includes fixed mounting the arch on accepting case one side lateral wall, fixed mounting accept incasement baffle, with the spring housing of baffle rotation connection, set up No. two springs in the spring housing, one end insert set up in the spring housing and with No. two spring coupling's movable rod, the other end of movable rod with the screening board rotates to be connected.

Still further, vibrate the subassembly including fixed mounting power device on the mounting panel, with power device's output shaft just rotates the cam of installing on the mounting panel, with cam roll connection and through limit structure slip setting be in connection structure on the dead axle, connection structure with accept the case and pick up the subassembly and be connected, power device's output shaft with gear fixed connection.

Still further, limit structure is including the symmetry fixed setting be in epaxial stopper, set up on the coupling assembling and with the recess of stopper adaptation, wherein, the stopper is rectangular form.

Further, the connecting structure comprises a sliding sleeve arranged on the fixed shaft in a sliding manner and a fixing piece fixedly connected with the sliding sleeve;

the sliding sleeve is characterized in that the groove is formed in the inner wall of the sliding sleeve, one side of the fixing piece is fixedly connected with the bearing box, the pulley in rolling connection with the cam is rotatably arranged on the other side of the fixing piece, and the fixing piece is further provided with a guide rail which is matched with the lifting assembly.

Still further, the elastic component includes fixed mounting limiting plate, the cover of dead axle upper end establish a spring on the dead axle, a spring one end with the limiting plate butt, the other end with sliding sleeve butt, the upper portion fixed mounting of limiting plate has the butt.

Still further, pick up the subassembly include with No. two gear fixed connection's carousel, one end articulates bracing piece on the carousel, the other end of bracing piece is provided with the sliding block, the sliding block slides and sets up in the guide rail.

A plastic granule screening device for use in plastic granulation and a method of use of the screening method as described, comprising the steps of:

step one: pouring a proper amount of plastic particles into the bearing box, and starting the power device;

step two: the power device drives the cam to rotate and acts on the pulley on the fixing piece, and when the joint of the cam and the pulley is changed from the short shaft of the cam to the long shaft, the pulley drives the fixing piece and the sliding sleeve to move upwards so as to enable the carrying box to move upwards;

step three: when the connection position of the cam and the pulley is changed from the long shaft of the cam to the short shaft of the cam, under the action of the first spring, the fixing piece, the sliding sleeve and the cam are forced to keep a rolling connection relationship so as to drive the carrying box to move downwards, and in the continuous rotation process of the cam, the third step and the fourth step are repeated, so that the carrying box generates vibration and the screening speed of the screening plate is increased;

step four: in the process of rotating the cam for a plurality of circles, plastic particles are screened, meanwhile, the first gear drives the second gear to rotate so as to drive the turntable to rotate, and the supporting rod drives the fixing piece and the sliding sleeve to move upwards so that the carrying box moves upwards until the supporting rod abuts against the screening plate, and the screening plate is overturned;

step five, a step of performing a step of; the screening plate overturns, the side plates are driven to be opened through the connecting rods, and plastic particles which do not meet the requirements on the screening plate do parabolic motion under the action of gravity and fall out of the bearing box from the side plates.

Compared with the prior art, the invention has the beneficial effects that:

because current plastic granules apparatus for producing does not have the screening function mostly, lead to the unqualified plastic granules of size to flow into market, influence product quality, so set up and vibrate subassembly and elastic component, the two mutually support, make and accept the case and take place to vibrate for the screening speed of screening board, after the screening is accomplished, pick up the subassembly and lift up the case to support the change state of pole and screening board butt simultaneously, and continue the motion, make the screening board upset, the screening board upset is opened through the curb plate when connecting rod, the unqualified product on the screening board falls out by the curb plate and accepts the case this moment.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.

In order to more clearly illustrate the embodiments of the invention or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, and it will be obvious to a person skilled in the art that other drawings can be obtained from these drawings without inventive effort.

Fig. 1 is a schematic perspective view of the present invention.

Fig. 2 is a side view of a perspective structural diagram provided by the present invention.

Fig. 3 is a schematic plan view of the present invention.

Fig. 4 is a cross-sectional view provided by the present invention.

Fig. 5 is an enlarged schematic view of the structure at a in fig. 4.

Reference numerals:

the device comprises a 1-mounting seat, a 2-dead axle, a 3-limiting block, a 4-sliding sleeve, a 5-first spring, a 6-fixing piece, a 7-bearing box, an 8-mounting plate, a 9-power device, a 10-first gear, a 11-cam, a 12-pulley, a 13-second gear, a 14-turntable, a 15-supporting rod, a 16-screening plate, a 17-supporting rod, a 18-side plate, a 19-connecting rod, a 20-movable rod, a 21-second spring, a 22-spring sleeve and a 23-baffle.

Detailed Description

The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.

In order to effectively explain the embodiments of the present invention, the embodiments of the present application are explained in detail below with reference to the figures.

The invention provides a plastic particle screening device and a screening method for plastic granulation, which are used for solving the problem that plastic particles which do not meet the standard flow into the market.

Example 1

Referring to fig. 1 to 5, a plastic particle screening device and a screening method for plastic granulation provided by an embodiment of the invention include:

the installation seat 1, the installation seat 1 is the level setting just fixed mounting has the dead axle 2 that is perpendicular with it on the installation seat 1, the upper portion fixed mounting of dead axle 2 has the butt pole 17.

The mount pad 1 is the cuboid structure, for the stability that improves whole device, can make mount pad 1 and level ground fixed connection through the bolt in the in-service use, guarantees that the device can not take place to rock in the course of the work.

The mounting seat 1 and the fixed shaft 2 can be of an integral structure, and also can be of a detachable structure, so that the device is convenient to repair or maintain.

The box 7 is accepted, it sets up to accept the box 7 activity on the mount pad 1, it is provided with the screening board 16 that can overturn to accept the box 7 rotation, the equidistance is provided with the plastic granules that a plurality of diameters are the same through-holes in order to filter the size and meet the requirements on the screening board 16, the screening board 16 passes through connecting rod 19 connection activity setting and is in curb plate 18 on the box 7 lateral wall accept the curb plate 18 when the screening board 16 takes place to overturn, passes through connecting rod 19 drives curb plate 18 and opens.

The upper portion of carrying case 7 is cuboid structure and inside cavity, and the both ends of screening board 16 are smooth curved surface setting, and when screening board 16 is in the horizontality, its just closely laminates with the lateral wall of carrying case 7 to guarantee at the in-process that carrying case 7 shakes, plastic granules can not follow in the clearance between screening board 16 and the carrying board 7 and fall, lead to unqualified product to participate in the qualification product.

In the process of oscillation of the carrying box 7, the carrying plate 7 is always kept in a horizontal state, and a closed state is kept between the side plate 18 and the carrying box 7 through the connecting rod 19, at the moment, the screening plate 16 screens plastic particles, qualified products pass through the screening plate 16 and fall out of the lower part of the carrying box 7, and unqualified products fall out of the carrying box 7 from the side plate 18 when the screening plate 16 is overturned.

And the reset component is connected with the carrying box 7 and the screening plate 16 and is used for keeping the screening plate 16 in a horizontal state and keeping the side plates 18 in a closed state under the condition of no external force.

During the shaking process of the carrying box 7, the screening plate 16 is kept in a horizontal state by the resetting assembly, and at this time, the side plates 18 are also in a closed state under the action of the connecting rods 19, and plastic particles are screened by the screening plate 16.

The vibration assembly is arranged on the mounting seat 1 and is connected with the carrying box 7, and the vibration assembly is matched with the elastic assembly arranged on the upper part of the fixed shaft 2 to drive the carrying box 7 to vibrate at high frequency;

the lifting component is connected with the carrying box 7, periodically lifts the carrying box 7 to the abutting rod 17 to abut against the screening plate 16 when the oscillating component is matched with the elastic component to drive the carrying box 7 to vibrate at high frequency so as to enable the screening plate 16 to overturn, and is arranged on the mounting seat 1;

the vibration assembly is connected with the lifting assembly through a speed reduction assembly, and the speed reduction assembly comprises a mounting plate 8 vertically and fixedly mounted on the mounting seat 1, a first gear 10 rotatably mounted on the mounting plate 8 and connected with the vibration assembly, and a second gear 13 meshed with the first gear 10 and rotatably mounted on the mounting plate 8;

wherein the gear No. two 13 is connected to the picking assembly.

The vibration subassembly and elastic component cooperation to drive and accept case 7 and vibrate, add the screening speed of screening board 16, at the in-process that plastic granules selected, gear No. 10 and No. two gears 13 meshing and drive No. two gears 13 rotation, after plastic granules selected, no. two gears 13 drive and pick up the subassembly and lift up and accept case 7 to supporting pole 17 and screening board 16 butt, make screening board 16 take place the upset, screening board 16 makes curb plate 18 open through connecting rod 19, and the defective work on the screening board 16 falls out and accepts case 7 from curb plate 18 this moment.

It should be noted that the transmission ratio of the first gear 10 to the second gear 13 is less than 1.

Example two

As an embodiment of the present invention, the reset assembly includes a protrusion fixedly installed on a side wall of the receiving box 7, a baffle plate 23 fixedly installed in the receiving box 7, a spring housing 22 rotatably connected with the baffle plate 23, a second spring 21 disposed in the spring housing 22, and a movable rod 20 having one end inserted into the spring housing 22 and connected with the second spring 21, wherein the other end of the movable rod 20 is rotatably connected with the screening plate 16.

In the initial state, the second spring 21 keeps the tensile state all the time for in the in-process that the carrying case 7 shakes, screening board 16 all the time with protruding butt, simultaneously under the effect of connecting rod 19, curb plate 18 also keeps the closed state, after plastic granules filters the completion, carrying case 7 is lifted to supporting rod 17 and screening board 16 butt under the effect of picking up the subassembly, supporting rod 17 drive screening board 16 upset, and makes curb plate 18 open through connecting rod 19.

Example III

As an embodiment of the present invention, the oscillating assembly includes a power unit 9 fixedly installed on the mounting plate 8, a cam 11 connected to an output shaft of the power unit 9 and rotatably installed on the mounting plate 8, and a connection structure connected to the cam 11 in a rolling manner and slidably disposed on the fixed shaft 2 through a limit structure, where the connection structure is connected to the receiving box 7 and the lifting assembly, and an output shaft of the power unit 9 is fixedly connected to the first gear 10.

When the power device 9 works, the driving cam 11 rotates, the cam 11 connecting structure is in rolling connection, when the connecting position of the cam 11 and the connecting structure is changed from the short axis of the cam 11 to the long axis of the cam 11, the connecting structure is lifted, the carrying box 7 is driven to lift, when the connecting position of the cam 11 and the connecting structure is changed from the long axis of the cam 11 to the short axis of the cam 11, the connecting structure falls under the action of the elastic component and always keeps a rolling connection state with the cam 11, so that the carrying box 7 oscillates, and the screening speed of the screening plate 16 is accelerated.

The limiting structure comprises limiting blocks 3 symmetrically and fixedly arranged on the fixed shaft 2, and grooves which are arranged on the connecting assembly and are matched with the limiting blocks 3, wherein the limiting blocks 3 are in a strip shape.

The connecting structure vibrates at high frequency on the fixed shaft 2 up and down while the carrying box 7 vibrates, and the limiting block 3 and the groove arranged on the connecting structure are arranged, so that the carrying box 7 does not change in angle along the fixed shaft 2 in the vibrating process, and the stability of the device is ensured.

The connecting structure comprises a sliding sleeve 4 which is arranged on the fixed shaft 2 in a sliding manner, and a fixing piece 6 which is fixedly connected with the sliding sleeve 4.

The inner wall of the sliding sleeve 4 is provided with the groove, one side of the fixing piece 6 is fixedly connected with the carrying box 7, the other side of the fixing piece is rotatably provided with a pulley 12 in rolling connection with the cam 11, the fixing piece 6 is further provided with a guide rail, and the guide rail is matched with the lifting assembly.

The pulley 12 reduces friction between the cam 11 and the fixing piece 6, prevents the cam 11 and the fixing piece 6 from acting for a long time to cause abrasion between the fixing piece 6 and the cam 11, and meanwhile, the fixing piece 6 is provided with a guide rail which is matched with the lifting assembly to realize that the lifting assembly periodically lifts the fixing piece 6;

the guide rail is long.

Example IV

As an embodiment of the present invention, the elastic component includes a limiting plate fixedly mounted on the upper end of the fixed shaft 2, and a first spring 5 sleeved on the fixed shaft 2, one end of the first spring 5 abuts against the limiting plate, the other end abuts against the sliding sleeve 4, and the upper portion of the limiting plate is fixedly mounted with the abutment rod 17.

By arranging the spring No. 5 to act on the sliding sleeve 4, the pulley 12 and the cam 11 on the fixing piece 6 always keep a rolling connection state, and the phenomenon that the pulley 12 and the cam 11 are separated due to inertia of the bearing box 7 when the connection part of the cam 11 and the pulley 12 is changed from the long shaft of the cam 11 to the short shaft, so that the oscillation is incomplete is avoided.

Example five

As an embodiment of the present invention, the picking assembly includes a turntable 14 fixedly connected to the second gear 13, and a support rod 15 with one end hinged to the turntable 14, where a sliding block is disposed at the other end of the support rod 15, and the sliding block is slidably disposed in the guide rail.

After the first gear 10 rotates for a plurality of circles, the second gear 13 rotates for a certain angle, and the sliding block moves to the upper edge of the guide rail through the turntable 14 and the supporting rod 15, at this moment, the second gear 13 continues to rotate, the supporting rod 15 acts on the fixing piece 6, the bearing box 7 is driven to move upwards until the supporting rod 17 is abutted against the screening plate 16, and the screening plate 16 is turned over.

Example six

As an embodiment of the present invention, there is also provided a plastic granule screening apparatus and a method for using the same in plastic granulation, comprising the steps of:

Taking the embodiment of combining all the characteristics as described in the application as an example, in actual use, a proper amount of plastic particles are poured into the carrying box 7, the power device 9 is started, the power device 9 drives the cam 11 to rotate and acts on the pulley 12 on the fixing piece, when the joint of the cam 11 and the pulley 12 is changed from the short axis of the cam 11 to the long axis, the pulley 12 drives the fixing piece 6 and the sliding sleeve 4 to move upwards so as to enable the carrying box 7 to move upwards, when the joint of the cam 11 and the pulley 12 is changed from the long axis of the cam 11 to the short axis of the cam, under the action of the spring 5, the fixing piece 6 and the sliding sleeve 4 are forced to keep a rolling connection relationship with the cam 11 so as to drive the carrying box 7 to move downwards, in the continuous pivoted in-process of cam 11, the above-mentioned process is repeated, make accept case 7 produce concussion, accelerate the screening speed of screening board 16, in the in-process of cam 11 rotation a plurality of circles, the plastic granules is accomplished by the screening, gear No. 10 drives No. two gears 13 rotation simultaneously, with drive carousel 14 rotation, and drive mounting 6 and slide sleeve 4 upward motion through bracing piece 15, so that accept case 7 upward movement to supporting rod 17 and screening board 16 butt, screening board 16 takes place the upset, drive curb plate 18 through connecting rod 19 and open, the plastic granules that do not meet the requirements on the screening board 16 do parabolic motion under the action of gravity, fall out accept case 7 from curb plate 18.

The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention.

Claims

1. A plastic granule screening device for use in plastic granulation, comprising:

the mounting seat (1), the mounting seat (1) is horizontally arranged, a fixed shaft (2) perpendicular to the mounting seat (1) is fixedly arranged on the mounting seat, and a supporting rod (17) is fixedly arranged on the upper part of the fixed shaft (2);

the supporting box (7), the supporting box (7) is movably arranged on the mounting seat (1), a turnover screening plate (16) is rotationally arranged on the supporting box (7), a plurality of through holes with the same diameter are equidistantly formed in the screening plate (16) so as to filter plastic particles with the same size, the screening plate (16) is connected with a side plate (18) movably arranged on the side wall of the supporting box (7) through a connecting rod (19), and when the screening plate (16) is turned over, the side plate (18) is driven to be opened through the connecting rod (19);

the reset assembly is connected with the carrying box (7) and the screening plate (16), and is used for keeping the screening plate (16) in a horizontal state and keeping the side plates (18) in a closed state under the condition of no external force;

the vibration assembly is arranged on the mounting seat (1) and is connected with the carrying box (7), and the vibration assembly is matched with the elastic assembly arranged on the upper part of the fixed shaft (2) to drive the carrying box (7) to vibrate at high frequency;

the lifting assembly is connected with the carrying box (7), periodically lifts the carrying box (7) to the abutting rod (17) to abut against the screening plate (16) when the oscillating assembly is matched with the elastic assembly to drive the carrying box (7) to vibrate at high frequency so as to enable the screening plate (16) to overturn, and the lifting assembly is arranged on the mounting seat (1);

the vibration assembly is connected with the lifting assembly through a speed reduction assembly, and the speed reduction assembly comprises a mounting plate (8) vertically and fixedly mounted on the mounting seat (1), a first gear (10) rotatably mounted on the mounting plate (8) and connected with the vibration assembly, and a second gear (13) meshed with the first gear (10) and rotatably mounted on the mounting plate (8);

wherein the second gear (13) is connected with the picking assembly;

the reset assembly comprises a bulge fixedly arranged on one side wall of the carrying box (7), a baffle plate (23) fixedly arranged in the carrying box (7), a spring sleeve (22) rotationally connected with the baffle plate (23), a second spring (21) arranged in the spring sleeve (22), and a movable rod (20) with one end inserted into the spring sleeve (22) and connected with the second spring (21), wherein the other end of the movable rod (20) is rotationally connected with the screening plate (16);

the vibration assembly comprises a power device (9) fixedly mounted on the mounting plate (8), a cam (11) connected with an output shaft of the power device (9) and rotatably mounted on the mounting plate (8), and a connecting structure which is in rolling connection with the cam (11) and is arranged on the fixed shaft (2) in a sliding manner through a limiting structure, wherein the connecting structure is connected with the bearing box (7) and the lifting assembly, and an output shaft of the power device (9) is fixedly connected with the first gear (10);

the connecting structure comprises a sliding sleeve (4) arranged on the fixed shaft (2) in a sliding manner and a fixing piece (6) fixedly connected with the sliding sleeve (4);

the inner wall of the sliding sleeve (4) is provided with a groove, one side of the fixing piece (6) is fixedly connected with the carrying box (7), the other side of the fixing piece is rotatably provided with a pulley (12) in rolling connection with the cam (11), the fixing piece (6) is also provided with a guide rail, and the guide rail is matched with the lifting assembly;

the elastic component includes fixed mounting limiting plate, the cover of dead axle (2) are established spring (5) on dead axle (2), one end of spring (5) with limiting plate butt, the other end with sliding sleeve (4) butt, the upper portion fixed mounting of limiting plate has supporting pole (17).

2. Plastic granule screening device for plastic granulation according to claim 1, characterized in that the limit structure comprises limit blocks (3) symmetrically and fixedly arranged on the fixed shaft (2), grooves arranged on the connecting component and adapted to the limit blocks (3), wherein the limit blocks (3) are in a strip shape.

3. Plastic granule screening device for plastic granulation according to claim 1, characterized in that the picking up assembly comprises a turntable (14) fixedly connected with the gear No. two (13), a support rod (15) with one end hinged on the turntable (14), the other end of the support rod (15) being provided with a sliding block, which sliding block is arranged in the guide rail.

4. A method of using a plastic granule screening apparatus for use in plastic granulation according to any one of claims 1-3, comprising the steps of: