CN115256695A - A screening device for plastic particle processing and its implementation method - Google Patents

Abstract

The invention discloses a screening device for plastic particle treatment and an implementation method thereof, belongs to the technical field of plastic particle treatment, and aims to solve the problems that when the conventional screening device is used for screening plastic particles, the screening effect is poor, the taking and the placing are inconvenient, and the plastic particle screening efficiency is low due to the fact that material blockage is easy to occur in the screening process. The screening device for plastic particle treatment and the implementation method thereof have the advantages of good screening effect and convenience in taking and placing materials, and can effectively avoid the situation of material blockage in the screening process and improve the screening efficiency of plastic particles.

Description

A screening device for processing plastic particles and its implementation method

technical field

The invention relates to the technical field of plastic particle processing, in particular to a screening device for plastic particle processing and an implementation method thereof.

Background technique

Plastic granules refer to granular plastics, which are generally divided into more than 200 types and can be subdivided into thousands of types. Common plastic granules include general-purpose plastics, engineering plastics, and special plastics. Among them, general-purpose plastics include polypropylene, polyethylene, polyvinyl chloride, polystyrene, polyester, polyurethane, etc.; engineering plastics include nylon, polytetrafluoroethylene, polyoxymethylene, polycarbon silicone, etc.; special plastics include thermosetting plastics, high-performance Molecular plastics, such as artificial kidneys.

Plastic granules are widely used in the following fields: 1. In daily life, recycled granules can be used to make various plastic bags, buckets, basins, toys, furniture, stationery and other living utensils and various plastic products; 2. In the clothing industry, recycled granules It can be used to make clothes, ties, buttons, and zippers; 3. In terms of building materials, recycled particles can be used to make various building components, construction tools, plastic doors and windows, and plaster buckets; 4. In terms of agriculture, recycled particles can be used to make agricultural films, Pumping pipes, agricultural machinery, fertilizer packaging bags, cement packaging bags; 5. In the mechanical industry, recycled particles can be used to manufacture machine parts after special formulation, various forms of bearings, gears, cams, different wheels, sealing rings, Various blades, various water pump impellers; 6. In the chemical industry, recycled particles can be used as reactors, pipes, containers, pumps, valves, etc., and are used in chemical production sites to solve corrosion and wear.

When plastic particles are processed, it is often necessary to use a screening device for sieving. When the current sieving device is used to sieve plastic particles, the screening effect is poor, and it is inconvenient to take and put the material. , It is easy to block the material, resulting in low screening efficiency of plastic particles.

Contents of the invention

The object of the present invention is to provide a screening device for processing plastic granules and its implementation method. Particle screening efficiency to solve the problems raised in the background art above.

To achieve the above object, the present invention provides the following technical solutions:

A screening device for processing plastic granules, comprising a processing table, universal casters are installed on the bottom of the processing table, a fixed support is installed on the upper surface of the processing table, and a screening mechanism is arranged on the fixed support , the bottom of the screening mechanism is provided with a collection bin, the collection bin is fixed on the fixed support through the support link, the bottom of the collection bin is provided with a discharge hose, and the discharge hose Extending into the collection tray, the collection tray is placed on the surface of the processing table, the discharge hose is swayed by the anti-clogging mechanism, and the anti-clogging mechanism is installed on the fixed support.

Further, the screening mechanism includes a traction transmission assembly and a screening assembly, the traction transmission assembly is installed on a fixed support, the traction transmission assembly is connected with a screening assembly, and the screening assembly is used for screening Plastic particles.

Further, the traction drive assembly includes a traction motor, a drive screw, a traction slider and an electric push rod, the drive screw is mounted on a fixed support through a bearing, one end of the drive screw is connected to the output of the traction motor shaft connection, the traction motor is installed on the fixed support, the transmission screw rod is threadedly connected with a traction slider, and an electric push rod is installed on the traction slider, and the electric push rod is connected with a screening material assembly.

Further, a guide base is installed on the traction slider, and the guide base is movably connected to a fixed support, and the fixed support is provided with a limit groove for the guide base to move, and the guide base The base fits into the limit groove.

Further, the sieve material assembly includes a sieve material outer frame, a sieve material filter screen, a connecting plate and a connecting base, the electric push rod is connected to the connecting base, and the end surfaces on both sides of the connecting base are connected to the connecting base. The connecting plate is installed on the upper surface of the outer frame of the sieve material, and the bottom of the outer frame of the sieve material is provided with a filter screen for the sieve material.

Further, the screen material assembly also includes a rotating motor, a rotating shaft, a driving gear and a driven gear, the rotating motor is installed on the outer surface of the screen material outer frame, and the output shaft of the rotating motor is installed with a spline The driving gear is engaged with the driven gear, and the driven gear is installed on the rotating shaft through a spline, and the rotating shaft is installed on the outer frame of the sieve through a bearing, and the rotating shaft passes through the screen of the sieve.

Further, the sieve screen is movably connected to the inner side of the screen frame through a rotating shaft, and the screen screen is driven by a rotating motor to rotate the driving gear, the driven gear and the rotation shaft to rotate in the screen frame .

Further, the anti-clogging mechanism includes a support base, a movable bracket, a drive motor and a transmission gear, the support base is installed on a fixed support, the support base is movably connected with a movable bracket, and the movable bracket The inner side is provided with a transmission shaft, which is installed on the movable support through bearings, and the transmission shaft is connected with the output shaft of the driving motor. The driving motor is installed on the outer surface of the movable support, and the transmission shaft is equipped with transmission gears through splines.

Further, the anti-clogging mechanism also includes a traction rack, a connecting column and a fastener, the transmission gear is engaged with the traction rack, the traction rack is installed on the surface of the support base, and the movable bracket A connecting column is installed, and a fastener is arranged on the connecting column, and the fastener is fixed on the discharge hose.

According to another aspect of the present invention, a method for implementing a screening device for processing plastic particles is provided, comprising the following steps:

S1: Add plastic particles into the outer frame of the screen material, start the electric push rod and drive the outer frame of the screen material into the inner side of the collection bin;

S2: The traction motor starts and drives the transmission screw to rotate. During the rotation, the transmission screw drives the traction slider to reciprocate under the guidance of the guide base, and the reciprocation of the traction slider drives the outer frame of the screen material to move accordingly. The reciprocating sieve screen screens the plastic particles;

S3: After the plastic particles are sieved, the large plastic particles remain on the sieve filter because they cannot pass through the sieve filter, and the small plastic particles fall into the collection bin because they can pass through the sieve filter. Drain into the collection pan through the discharge hose;

S4: After the small plastic particles are discharged, the rotating motor drives the driving gear, the driven gear and the rotating shaft to rotate, so that the sieve material filter screen rotates in the sieve material outer frame driven by the rotating shaft, and the sieve material filter screen is rotated. The remaining large plastic particles fall into the collection bin, and are discharged into the collection tray through the discharge hose, and the plastic particles accumulated on the sieve filter are shaken off during the reciprocating rotation of the sieve filter. row down;

S5: When discharging through the discharge hose, the drive motor drives the transmission shaft and the transmission gear to rotate, so that the movable bracket moves back and forth on the support base, and the movable bracket moves back and forth to drive the connecting column, fasteners and discharge hose. Reciprocating movement, so that the plastic particles in the discharge hose can be discharged smoothly.

Compared with prior art, the beneficial effect of the present invention is:

1. The screening device for processing plastic particles of the present invention and its implementation method, the fixed support is provided with a screening mechanism, the screening mechanism includes a traction drive assembly and a sieve material assembly, and the traction drive assembly includes a traction motor, a drive screw, The traction slider and the electric push rod, the transmission screw is threadedly connected with the traction slider, the electric push rod is installed on the traction slider, the electric push rod is connected with the sieve material assembly, and plastic particles are added to the outer frame of the sieve material, and the electric push rod Start and drive the outer frame of the screen material to enter the inner side of the collection bin, which is convenient for discharging. The traction motor starts and drives the transmission screw to rotate. During the rotation, the transmission screw drives the traction slider to move back and forth under the guidance of the guide base , the reciprocating movement of the traction slider drives the sieve assembly to move accordingly, and the plastic granules are sieved by the reciprocating sieve assembly, which can improve the sieving efficiency of the plastic granules.

2. The sieving device for processing plastic granules of the present invention and its implementation method, the sieving material assembly includes a sieving material outer frame, a sieving material filter screen, a connecting plate, a connecting base, a rotating motor, a rotating shaft, a driving gear and a driven gear , the electric push rod is connected with a connection base, the two sides of the connection base are connected with connection plates, the connection plate is installed on the upper surface of the screen frame, and the bottom of the screen frame is provided with a screen filter. The material filter screen rotates in the outer frame of the sieve material through the rotation of the driving gear, driven gear and rotating shaft driven by the rotating motor. After the plastic particles are sieved, the large plastic particles remain in the sieve material because they cannot pass through the sieve material filter. On the filter screen, the small pieces of plastic particles can fall into the collection bin through the sieve filter, and are discharged into the collection tray through the discharge hose. After the small pieces of plastic particles are discharged, the rotating motor drives the drive gear , the driven gear and the rotating shaft rotate, so that the sieve material filter screen rotates in the sieve material outer frame driven by the rotating shaft, so that the large plastic particles remaining on the sieve material filter screen fall into the collection bin, and pass through the discharge The material hose is discharged into the collection tray, which is convenient to take out the material and has a good screening effect for plastic particles. After the sieve filter is unloaded, the sieve filter can shake the plastic particles accumulated on the sieve filter during the reciprocating rotation. Fall and discharge from the sieve filter to prevent the sieve filter from clogging and facilitate the cleaning of the sieve filter.

3. The screening device for processing plastic particles of the present invention and its implementation method, the bottom of the collection bin is provided with a discharge hose, and the discharge hose is shaken by an anti-clogging mechanism. The anti-clogging mechanism includes a support base, a movable bracket, Drive motor, transmission gear, traction rack, connecting column and fasteners, the support base is movably connected with a movable bracket, the inner side of the movable bracket is provided with a transmission shaft, and the transmission shaft is equipped with a transmission gear through a spline, and the transmission gear and the traction tooth The traction rack is installed on the surface of the supporting base, the connecting column is installed on the movable bracket, the connecting column is provided with fasteners, the fasteners are fixed on the discharge hose, and the material is discharged through the discharge hose When the drive motor starts and drives the transmission shaft and the transmission gear to rotate, the movable bracket can reciprocate on the support base, and the reciprocating movement of the movable bracket drives the connecting column, fasteners and discharge hose to reciprocate accordingly, so that the discharge The plastic particles in the hose shake, so that the plastic particles in the discharge hose can be discharged smoothly, avoiding material blocking, and improving the screening efficiency of plastic particles.

Description of drawings

Fig. 1 is the schematic diagram of the plastic granule processing screening device of the present invention;

Fig. 2 is the schematic diagram of the sieving mechanism for plastic particle processing of the present invention;

Fig. 3 is the schematic diagram of the sieve material assembly of sieve material filter screen unloading of the present invention;

Fig. 4 is the schematic diagram that the sieve filter screen of the present invention is connected on the rotating shaft;

Fig. 5 is an enlarged view at A place in Fig. 3 of the present invention;

Fig. 6 is a partial schematic view of the sloshing discharge hose of the anti-clogging mechanism of the present invention;

Fig. 7 is an enlarged view of B in Fig. 6 of the present invention.

In the figure: 1. processing table; 2. fixed support; 3. screening mechanism; 31. traction drive assembly; 311. traction motor; 312. transmission screw; 313. traction slider; 314. electric push rod; 32 , sieve assembly; 321, sieve frame; 322, sieve filter; 323, connecting plate; 324, connecting base; 325, rotating motor; 326, rotating shaft; 327, driving gear; 328, driven gear ;4. Collecting bin; 41. Discharging hose; 5. Support connecting rod; 6. Collecting tray; 7. Anti-clogging mechanism; 71. Support base; Gear; 75, traction rack; 76, connecting column; 77, fastener; 8, guide base.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

Refer to Fig. 1, a kind of screening device for plastic granule treatment, comprises processing table 1, and the bottom of processing table 1 is equipped with universal caster, and the upper surface of processing table 1 is equipped with fixed support 2, and fixed support 2 is provided with The screening mechanism 3 is provided with a collection bin 4 below the screening mechanism 3, and the collection bin 4 is fixed on the fixed support 2 through the support connecting rod 5. The bottom of the collection bin 4 is provided with a discharge hose 41, and the discharge The material hose 41 extends into the collection tray 6, and the plastic particles are screened by the screening mechanism 3, and the screened plastic particles fall to the inner side of the collection bin 4, and are discharged into the collection tray 6 through the discharge hose 41 , the collecting tray 6 is placed on the surface of the processing table 1, the discharge hose 41 shakes through the anti-clogging mechanism 7, and the anti-clogging mechanism 7 is installed on the fixed support 2, and the discharge hose 41 can be discharged through the anti-clogging mechanism 7 Shaking, avoiding the blockage of the discharge hose 41, can fully ensure the smooth discharge of the plastic particles in the discharge hose 41.

The screening mechanism 3 includes a traction transmission assembly 31 and a screening assembly 32. The traction transmission assembly 31 is installed on the fixed support 2. The traction transmission assembly 31 is connected with a screening assembly 32. The screening assembly 32 is used for screening plastic particles.

Referring to Fig. 2, traction transmission assembly 31 comprises traction motor 311, transmission screw mandrel 312, traction slider 313 and electric push rod 314, and transmission screw mandrel 312 is installed on the fixed support 2 by bearing, and one end of transmission screw mandrel 312 is connected with traction The output shaft of the motor 311 is connected, the traction motor 311 is installed on the fixed support 2, the transmission screw rod 312 is threadedly connected with a traction slider 313, the traction slider 313 is equipped with an electric push rod 314, and the electric push rod 314 is connected with a screen material Component 32, guide base 8 is installed on the traction slider 313, and guide base 8 is movably connected on the fixed support 2, and fixed support 2 is provided with the limit groove that guide base 8 moves, and guide base 8 fits with the limit groove.

Add plastic particles into the sieve material outer frame 321, the electric push rod 314 starts and drives the sieve material outer frame 321 to enter the inside of the collection bin 4, and the discharge is convenient. The traction motor 311 starts and drives the transmission screw rod 312 to rotate, and the transmission screw rod 312 drives the traction slider 313 to move back and forth under the guidance of the guide base 8 during the rotation process, and the traction slider 313 reciprocates to drive the sieve assembly 32 to move accordingly, and the plastic granules are screened by the reciprocating sieve assembly 32 Screening can improve the screening efficiency of plastic particles.

Referring to Fig. 3-Fig. 5, the sieve material assembly 32 comprises a sieve material outer frame 321, a sieve material filter screen 322, a connecting plate 323 and a connecting base 324, the electric push rod 314 is connected with the connecting base 324, and the two ends of the connecting base 324 The side end faces are all connected with connecting plate 323, and connecting plate 323 is installed on the upper surface of sieve material outer frame 321, and the bottom of sieve material outer frame 321 is provided with sieve material filter screen 322, and sieve material assembly 32 also includes rotating motor 325, rotating Axle 326, driving gear 327 and driven gear 328, rotating motor 325 is installed on the outer surface of screen material outer frame 321, and the output shaft of rotating motor 325 is installed with driving gear 327 by spline, driving gear 327 and driven gear 328 meshing, the driven gear 328 is installed on the rotating shaft 326 through a spline, the rotating shaft 326 is installed on the screen material outer frame 321 through a bearing and the rotating shaft 326 runs through the screen material filter screen 322, and the screen material filter screen 322 moves through the rotation shaft 326 Connected to the inner side of the sieve material outer frame 321 , the sieve material filter screen 322 drives the driving gear 327 , the driven gear 328 and the rotating shaft 326 to rotate through the rotating motor 325 to rotate in the sieve material outer frame 321 .

After the plastic particles are sieved, the large plastic particles remain on the sieve filter screen 322 because they cannot pass through the sieve filter screen 322, and the small block plastic particles fall to the collection bin because they can pass through the sieve material filter screen 322 4, it is discharged into the collection tray 6 through the discharge hose 41. After the small plastic particles are discharged, the rotating motor 325 drives the driving gear 327 to rotate. Since the driving gear 327 meshes with the driven gear 328 and the driven gear 328 It is installed on the rotating shaft 326 through a spline, so the rotation of the driving gear 327 can drive the driven gear 328 and the rotating shaft 326 to rotate accordingly, so that the sieve material filter screen 322 rotates in the sieve material outer frame 321 under the drive of the rotating shaft 326 , so that the remaining bulky plastic particles on the sieve filter screen 322 fall into the collection bin 4, and are discharged into the collection pan 6 through the discharge hose 41. The material is convenient to take out and the plastic particle screening effect is good. After the filter screen 322 is unloaded, the screen material filter screen 322 can shake off the plastic particles accumulated on the screen material filter screen 322 and discharge them from the screen material filter screen 322 in the process of reciprocating rotation, so as to prevent the screen material filter screen 322 from Blockage makes the sieve filter screen 322 easy to clean.

6-7, the anti-clogging mechanism 7 includes a support base 71, a movable bracket 72, a drive motor 73 and a transmission gear 74, the support base 71 is installed on the fixed support 2, and the support base 71 is movably connected with a movable bracket 72, the inner side of the movable support 72 is provided with a transmission shaft, the transmission shaft is installed on the movable support 72 through the bearing, the transmission shaft is connected with the output shaft of the driving motor 73, the driving motor 73 is installed on the outer surface of the movable support 72, and the transmission shaft passes through The spline is equipped with a transmission gear 74, and the anti-blocking mechanism 7 also includes a traction rack 75, a connecting column 76 and a fastener 77, the transmission gear 74 is engaged with the traction rack 75, and the traction rack 75 is installed on the surface of the support base 71 Above, a connecting column 76 is installed on the movable bracket 72 , and a fastener 77 is arranged on the connecting column 76 , and the fastener 77 is fixed on the discharge hose 41 .

When discharging through the discharge hose 41, the driving motor 73 starts and drives the transmission shaft and the transmission gear 74 to rotate. Since the transmission gear 74 meshes with the traction rack 75 and the traction rack 75 is installed on the surface of the support base 71, therefore The transmission gear 74 can make the movable bracket 72 reciprocate on the support base 71 during the rotation process, and the reciprocating movement of the movable bracket 72 drives the connecting column 76, the fastener 77 and the discharge hose 41 to reciprocate thereupon, so that the discharge The plastic granules in the hose 41 shake, so that the plastic granules in the discharge hose 41 can be discharged smoothly, avoiding material blocking, and improving the screening efficiency of the plastic granules.

In order to better demonstrate the implementation process of the screening device for plastic particle processing, this embodiment now proposes a method for implementing a screening device for plastic particle processing, including the following steps:

S1: Add plastic particles into the sieve outer frame 321, the electric push rod 314 starts and drives the sieve material outer frame 321 into the inner side of the collection bin 4;

S2: The traction motor 311 starts and drives the transmission screw 312 to rotate. During the rotation, the transmission screw 312 drives the traction slider 313 to move back and forth under the guidance of the guide base 8, and the traction slider 313 moves back and forth to drive the outside of the screen material. The frame 321 moves thereupon, and the plastic particles are screened by the reciprocating sieve screen 322;

S3: After the plastic granules are sieved, the large plastic granules remain on the sieve filter 322 because they cannot pass through the sieve filter 322, and the small plastic granules fall to the collector because they can pass through the sieve filter 322. In the silo 4, it is discharged into the collecting pan 6 through the discharge hose 41;

S4: After the small plastic particles are discharged, the rotating motor 325 drives the driving gear 327, the driven gear 328 and the rotating shaft 326 to rotate, so that the sieve filter screen 322 is driven by the rotating shaft 326 in the sieve outer frame 321 Rotate to make the residual large plastic particles on the sieve filter screen 322 fall into the collection bin 4, and be discharged into the collection tray 6 through the discharge hose 41, and the sieve material filter screen 322 is in the process of reciprocating rotation , so that the plastic particles accumulated on the sieve filter screen 322 are shaken off and discharged;

S5: When discharging through the discharge hose 41, the driving motor 73 drives the transmission shaft and the transmission gear 74 to rotate, so that the movable bracket 72 reciprocates on the support base 71, and the reciprocating movement of the movable bracket 72 drives the connecting column 76 and fasteners 77 and the discharge hose 41 move back and forth thereupon, so that the plastic particles in the discharge hose 41 are discharged smoothly.

To sum up, in the screening device for processing plastic particles and its implementation method of the present invention, plastic particles are added to the outer frame 321 of the sieve, and the electric push rod 314 is activated to drive the outer frame 321 of the sieve into the inside of the collection bin 4 , the traction motor 311 starts and drives the transmission screw 312 to rotate, and the transmission screw 312 drives the traction slider 313 to move back and forth under the guidance of the guide base 8 during the rotation, and the traction slider 313 moves back and forth to drive the outer frame of the screen material 321 moves along with it, and sieves the plastic particles through the reciprocating sieve filter screen 322. After the plastic particles are sieved, the large plastic particles remain on the sieve filter screen 322 because they cannot pass through the sieve filter screen 322. , the small piece of plastic particles can fall into the collection bin 4 through the sieve filter screen 322, and is discharged into the collection tray 6 through the discharge hose 41. After the small piece of plastic particles are discharged, the rotating motor 325 Drive driving gear 327, driven gear 328 and rotating shaft 326 rotations, make sieve material filter screen 322 rotate in the sieve material outer frame 321 under the drive of rotating shaft 326, make the residual bulky on the sieve material filter screen 322 The plastic particles fall into the collection bin 4, and are discharged into the collection tray 6 through the discharge hose 41, and the sieve filter screen 322 shakes off the plastic particles accumulated on the sieve material filter screen 322 during the reciprocating rotation. Next, when discharging through the discharge hose 41, the driving motor 73 drives the transmission shaft and the transmission gear 74 to rotate, so that the movable bracket 72 moves back and forth on the support base 71, and the movable bracket 72 moves back and forth to drive the connecting column 76, fastening The piece 77 and the discharge hose 41 move back and forth accordingly, so that the plastic particles in the discharge hose 41 can be discharged smoothly, the screening effect is good, the material is easy to take and discharge, and in the process of screening, it can effectively avoid material blocking In some cases, the screening efficiency of plastic particles can be improved.

The above is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Anyone familiar with the technical field within the technical scope disclosed in the present invention, according to the technical solution of the present invention Any equivalent replacement or change of the inventive concepts thereof shall fall within the protection scope of the present invention.

Claims (10)

1. The utility model provides a screening plant for plastic granules handles, includes processing platform (1), its characterized in that, universal caster is installed to the bottom of processing platform (1), the last surface mounting of processing platform (1) has fixing support (2), be provided with screening mechanism (3) on fixing support (2), the below of screening mechanism (3) is provided with collection feed bin (4), collection feed bin (4) are fixed on fixing support (2) through supporting rod (5), the bottom of collection feed bin (4) is provided with row material hose (41), arrange material hose (41) and extend to in collecting tray (6), collecting tray (6) are placed on the surface of processing platform (1), it rocks through preventing blockking up mechanism (7) to arrange material hose (41), prevent blockking up that mechanism (7) installs on fixing support (2).

2. A screening device for the treatment of plastic granules according to claim 1, wherein the screening mechanism (3) comprises a traction drive assembly (31) and a screening assembly (32), the traction drive assembly (31) is mounted on the fixed support (2), the screening assembly (32) is connected to the traction drive assembly (31), and the screening assembly (32) is used for screening plastic granules.

3. The screening device for plastic particle treatment as claimed in claim 2, wherein the traction transmission assembly (31) comprises a traction motor (311), a transmission screw rod (312), a traction sliding block (313) and an electric push rod (314), the transmission screw rod (312) is mounted on the fixed support (2) through a bearing, one end of the transmission screw rod (312) is connected with an output shaft of the traction motor (311), the traction motor (311) is mounted on the fixed support (2), the transmission screw rod (312) is in threaded connection with the traction sliding block (313), the electric push rod (314) is mounted on the traction sliding block (313), and the electric push rod (314) is connected with the screening assembly (32).

4. A screening device for plastic particle treatment according to claim 3, wherein the traction sliding block (313) is provided with a guide base (8), the guide base (8) is movably connected to the fixed support (2), the fixed support (2) is provided with a limit groove for the guide base (8) to move, and the guide base (8) is adapted to the limit groove.

5. The screening device for plastic particle treatment as claimed in claim 3, wherein the screening component (32) comprises a screening outer frame (321), a screening filter screen (322), a connecting plate (323) and a connecting base (324), the electric push rod (314) is connected with the connecting base (324), the connecting plate (323) is connected to both side end faces of the connecting base (324), the connecting plate (323) is mounted on the upper surface of the screening outer frame (321), and the screening filter screen (322) is arranged at the bottom of the screening outer frame (321).

6. A screening device for plastic particle treatment as claimed in claim 5, wherein said screening component (32) further comprises a rotary motor (325), a rotary shaft (326), a driving gear (327) and a driven gear (328), said rotary motor (325) is installed on the outer surface of the screening frame (321), the output shaft of said rotary motor (325) is installed with said driving gear (327) by splines, said driving gear (327) is engaged with said driven gear (328), said driven gear (328) is installed on said rotary shaft (326) by splines, said rotary shaft (326) is installed on the screening frame (321) by bearings, and said rotary shaft (326) penetrates through the screening net (322).

7. A screening device for plastic particle treatment as claimed in claim 6, wherein said screening sieve (322) is movably connected to the inner side of the screening outer frame (321) through a rotation shaft (326), and said screening sieve (322) rotates in the screening outer frame (321) by driving the driving gear (327), the driven gear (328) and the rotation shaft (326) to rotate through the rotation motor (325).

8. A screening device for plastic particle treatment as claimed in claim 1, wherein said anti-clogging mechanism (7) comprises a supporting base (71), a movable bracket (72), a driving motor (73) and a transmission gear (74), said supporting base (71) is mounted on the fixed support (2), said supporting base (71) is movably connected with the movable bracket (72), a transmission shaft is arranged at the inner side of said movable bracket (72), said transmission shaft is mounted on the movable bracket (72) through a bearing, said transmission shaft is connected with the output shaft of the driving motor (73), said driving motor (73) is mounted on the outer surface of the movable bracket (72), and said transmission shaft is mounted with the transmission gear (74) through a spline.

9. A screening device for plastic particle processing according to claim 8, wherein said anti-clogging mechanism (7) further comprises a pulling rack (75), a connecting column (76) and a fastening member (77), said driving gear (74) is engaged with said pulling rack (75), said pulling rack (75) is installed on the surface of the supporting base (71), said movable bracket (72) is installed with said connecting column (76), said connecting column (76) is provided with said fastening member (77), and said fastening member (77) is fixed on the discharging hose (41).

10. A method of implementing a screening device for the treatment of plastic granules as claimed in any one of claims 1 to 9, characterized in that it comprises the following steps:

s1: adding plastic particles into the screening outer frame (321), starting the electric push rod (314) and driving the screening outer frame (321) to enter the inner side of the material collecting bin (4);

s2: the traction motor (311) is started and drives the transmission screw rod (312) to rotate, the transmission screw rod (312) drives the traction slide block (313) to reciprocate under the guiding action of the guide base (8) in the rotating process, the traction slide block (313) reciprocates to drive the screening outer frame (321) to move along with the traction slide block, and plastic particles are screened through the reciprocating screen (322);

s3: after plastic particles are screened, large plastic particles are remained on the screening material filter screen (322) because the large plastic particles cannot pass through the screening material filter screen (322), small plastic particles are dropped into the collecting bin (4) because the small plastic particles can pass through the screening material filter screen (322), and are discharged into the collecting tray (6) through the discharge hose (41);

s4: after the small block-shaped plastic particles are discharged, the rotating motor (325) drives the driving gear (327), the driven gear (328) and the rotating shaft (326) to rotate, so that the screening filter screen (322) rotates in the screening outer frame (321) under the driving of the rotating shaft (326), the large block-shaped plastic particles remained on the screening filter screen (322) fall into the collecting bin (4) and are discharged into the collecting tray (6) through the discharging hose (41), and the plastic particles accumulated on the screening filter screen (322) are shaken off and discharged in the reciprocating rotation process of the screening filter screen (322);

s5: when the discharge hose (41) discharges materials, the driving motor (73) drives the transmission shaft and the transmission gear (74) to rotate, so that the movable support (72) moves on the supporting base (71) in a reciprocating mode, the movable support (72) moves in a reciprocating mode to drive the connecting column (76), the fastening piece (77) and the discharge hose (41) to move in a reciprocating mode, and plastic particles in the discharge hose (41) are discharged smoothly.

Images