A plastic granulator capable of screening plastic particles

Abstract

The present invention discloses a plastic granulator capable of screening plastic particles, and specifically relates to the technical field of plastic granulation equipment, including a support leg, wherein the inner cavity of the support leg is provided with a cooling mechanism, the upper front part of the cooling mechanism is provided with a granulating mechanism, the upper middle part of the cooling mechanism is provided with a motor, the output end of the motor is provided with a second transmission wheel, and the lower side of the cooling mechanism is provided with a screening mechanism. The plastic granulator capable of screening plastic particles described in the present invention, through the coordinated use of a cold air blower, ventilation pipe fittings and a disc bin, a fan-shaped filter plate, a semi-conical collection bin, an arc filter plate one and a pelletizing assembly, enables the device to dry and cool the cut plastic particles while clearing and collecting and discharging the unqualified tiny plastic particles therein, and the coordinated use of the motor, the second transmission wheel and the knife roller and the transmission device in the granulating mechanism, as well as the material pressing assembly, the U-shaped frame and the rotating device, enables the device to cut plastic strips of different specifications, thereby improving the scope of use of the device.

Description

Technical Field

[0001] The invention relates to the technical field of plastic granulation equipment, in particular to a plastic granulator capable of screening plastic particles. Background Art

[0002] Plastic granulators play an important role in the plastic processing industry, especially in the recycling of waste plastics, reprocessing of plastic products, and production of plastic composite materials. With the increasing awareness of environmental protection and the demand for resource recycling, the performance requirements for plastic granulators are getting higher and higher. Against this background, a plastic granulator that can screen plastic particles came into being.

[0003] Chinese patent document CN116141523A discloses a plastic granulator that can screen plastic particles, including an adjusting box and a plastic particle conveying pipeline; a rotating motor is installed above the adjusting box, and the output shaft of the rotating motor passes through the adjusting box and is placed inside the adjusting box; a plastic screening net is inserted horizontally in the center of the adjusting box, and the inside of the adjusting box is divided into a stirring and screening chamber and a feeding chamber by the plastic screening net; a stirring component is arranged inside the stirring and screening chamber, and the output shaft of the rotating motor is connected to the stirring component, and a feeding rack is fixed inside the feeding chamber; the plastic particle conveying pipeline is installed on one side above the adjusting box, and is connected to the stirring and screening brain inside the adjusting box. The above invention uses a cold air blower to dry and cool the plastic particles in the spiral pipe to achieve the purpose of cooling; however, the following defects still exist during implementation:

[0004] During the implementation of the above patent document, although the plastic pellets can be dried and cooled, the device itself does not have the ability to cut and pelletize plastic strips, which limits the use of the device. Summary of the invention

[0005] The main purpose of the present invention is to provide a plastic granulator capable of screening plastic particles, which can effectively solve the problem that the device itself does not have the ability to cut and granulate plastic strips, making the use of the device limited.

[0006] To achieve the above object, the technical solution adopted by the present invention is:

[0007] A plastic granulator capable of screening plastic particles comprises a supporting leg, wherein a cooling mechanism is provided in the inner cavity of the supporting leg, a granulating mechanism is provided in the front upper portion of the cooling mechanism, a motor is provided in the middle upper portion of the cooling mechanism, a second transmission wheel is provided at the output end of the motor, a screening mechanism is provided at the lower side of the cooling mechanism, the left side of the granulating mechanism is connected to the left side of the screening mechanism by a belt, and the left side of the granulating mechanism is connected to the outer surface of the second transmission wheel by a belt.

[0008] Preferably, the granulation mechanism includes an upper shell, a knife roller is provided on the rear side of the inner cavity of the upper shell, the left end of the knife roller passes through the left wall of the inner cavity of the upper shell and is fixedly connected to a transmission device, the left part of the outer surface of the transmission device is connected to the outer surface of the second transmission wheel through a belt, a sliding groove 1 is provided on the upper side of the left end of the upper shell, a spring is fixedly connected to the bottom wall of the inner cavity of the sliding groove 1, a tensioning device is fixedly connected to the upper end of the spring, the outer surface of the tensioning device is slidably connected to the inner cavity of the sliding groove 1, a pressing component is provided in the middle part of the inner cavity of the upper shell, and a limiting groove 1 is provided on the front side of the left end of the upper shell.

[0009] Preferably, the pressing component includes a U-shaped frame, the outer surface of the U-shaped frame is fixedly connected to the front side of the upper shell inner cavity, the rear side of the upper end of the U-shaped frame is fixedly connected to a cleaning air pipe, the rear side of the inner cavity of the U-shaped frame is provided with two left-right symmetrical sliding grooves, the lower side of the left wall and the lower side of the right wall of the inner cavity of the upper shell are connected with a connecting device for common rotation, the left end of the connecting device passes through the left wall of the inner cavity of the U-shaped frame and the left end of the upper shell and is fixedly connected with a rotating device, the upper side of the left end of the U-shaped frame is provided with two limiting grooves, the rear side of the inner cavity of the U-shaped frame is provided with a pressing assembly, and the front left side of the pressing assembly is provided with a transmission wheel 1, and the outer surface of the transmission wheel 1, the left side of the outer surface of the sliding groove 1 and the right side of the outer surface of the transmission device are connected by a belt.

[0010] Preferably, the pressing assembly includes two curved connecting plates, and are symmetrically arranged up and down, the left and right ends of the two curved connecting plates are fixedly connected to the connecting frames, the middle parts of the upper ends of the two connecting frames on the upper side are provided with a threaded groove, and the middle parts of the upper ends of the two connecting frames on the lower side are provided with a rotating groove, the inner cavity of the threaded groove and the inner cavity of the rotating groove on the same side are jointly provided with a rotating device, and the front sides of the two connecting frames on the same horizontal plane are jointly provided with a rotating roller, the lower ends of the curved connecting plates on the lower side are fixedly connected with a baffle at the lower ends, the ends of the two connecting frames on the lower side that are away from each other are respectively fixedly connected to the lower sides of the right wall and the lower sides of the left wall of the inner cavity of the U-shaped frame, and the sides of the outer surfaces of the two connecting frames on the upper side that are away from each other are respectively slidably connected to the inner cavities of the two sliding grooves, the left end of the rotating roller on the upper side passes through the inner cavity of the limiting groove and is fixedly connected to the right end of the driving wheel, and the lower sides of the outer surfaces of the two rotating devices are respectively meshed and connected with the left side and the right side of the outer surface of the connecting device.

[0011] Preferably, the cooling mechanism includes a shell, a cooling component is provided in the middle of the inner cavity of the shell, a ventilation duct is provided in the middle of the right wall of the inner cavity of the shell, the upper side of the outer surface of the ventilation duct is fixedly connected to the right side of the cooling component, the right end of the ventilation duct passes through the middle of the right wall of the inner cavity of the shell and is fixedly connected to an air cooler, an air duct is provided on the right side of the outer surface of the ventilation duct, a control valve is provided in the middle of the outer surface of the air duct, and the left end of the air duct passes through the right end of the upper shell and is fixedly connected to the right end of the cleaning air duct.

[0012] Preferably, the cooling component includes a feed hopper, an inclined plate is provided on the lower side of the left wall of the inner cavity of the feed hopper, a disc bin is provided on the lower side of the outer surface of the feed hopper, a fan-shaped filter plate is provided on the lower left part of the outer surface of the disc bin, a particle lowering assembly is fixedly connected to the lower end of the disc bin, a semi-conical collecting bin is provided on the left side of the outer surface of the lower particle assembly and the side of the outer surface of the fan-shaped filter plate away from the disc bin, an arc-shaped filter plate is provided on the side of the outer surface of the semi-conical collecting bin that is in contact with the lower particle assembly, the upper end of the feed hopper is fixedly connected to the front side of the top wall of the inner cavity of the shell and communicates with the rear side of the inner cavity of the upper shell, and the right side of the outer surface of the disc bin is fixedly connected to the upper side of the ventilation pipe fitting.

[0013] Preferably, the particle discharge assembly includes a cylindrical sleeve, the inner cavity of the cylindrical sleeve is provided with a spiral material discharge column, the right side of the outer surface of the cylindrical sleeve is provided with an arc-shaped air hole plate, the left side of the outer surface of the cylindrical sleeve is provided with an arc-shaped filter plate 2, the left side of the outer surface of the arc-shaped filter plate 2 is fixedly connected to the right side of the outer surface of the arc-shaped filter plate 1, and the upper end of the cylindrical sleeve is fixedly connected to the lower end of the disc magazine.

[0014] Preferably, the screening mechanism includes a screening shell, an inclined plate 2 is provided on the upper side of the inner cavity of the screening shell, a particle outlet is provided in the middle of the left end of the screening shell, a screening component is provided in the middle of the inner cavity of the screening shell, a fixed bracket is fixedly connected to the middle of the left side of the front end of the screening shell, a rotating rod is rotatably connected to the inner cavity of the fixed bracket, a bevel gear 1 is provided on the front side of the screening component and the right end of the rotating rod, the left side of the outer surface of the rotating rod passes through the left wall of the inner cavity of the shell and is connected to the right side of the outer surface of the rotating device through a belt, and the right end of the screening shell is fixedly connected to the lower side of the right wall of the inner cavity of the shell.

[0015] Preferably, the screening component includes an upper screen plate, two cylindrical columns are provided on the right side of the front end of the upper screen plate, and the front ends of the two cylindrical columns penetrate the front wall of the inner cavity of the screening shell, the inner cavities of the two cylindrical columns rotate rotating shafts, and the front ends of the two rotating shafts are fixedly connected with transmission wheels three, and the inner cavity of the upper screen plate is slidably connected with a lower screen plate, and a toothed plate groove is provided on the right side of the front end of the lower screen plate, and the rear sides of the outer surfaces of the two rotating shafts are respectively meshed with the lower sides of the outer surfaces of the two toothed plate grooves, and the outer surfaces of the two transmission wheels three are connected by belts, and the front end of the transmission wheel three on the left side and the right end of the rotating rod are provided with a bevel gear one, and the outer surfaces of the two bevel gears one are meshed, and the front and rear ends of the upper screen plate are respectively fixedly connected to the front wall and rear wall of the inner cavity of the screening shell.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] The present invention comprises a granulating mechanism, a motor and a transmission wheel. When the motor, the transmission wheel and the knife roller in the granulating mechanism and the transmission device are used in coordination, the device can cut and granulate plastic strips. When the pressing component, the U-shaped frame and the rotating device are used in coordination, the device can cut and granulate plastic strips of different thicknesses, thereby enabling the device to cut plastic strips of different specifications, thereby improving the use range of the device. At the same time, when a cooling fan, a control valve, an air guide pipe and a cleaning air pipe are used in coordination, the knife roller is cleaned, thereby reducing manual operation and increasing the qualified rate of granulation.

[0018] During use of the present invention, through the coordinated use of the air cooler, ventilation pipes and disc bin, fan-shaped filter plates, semi-conical collection bins, arc filter plates one and lower particle components, the device can not only dry and cool the cut plastic particles, but also remove and collect and discharge the unqualified tiny plastic particles therein. Through the coordinated use of the screening shell, the inclined plate two and the screening components, the plastic particles are further screened to select qualified plastic particles. While the rotating device rotates, the belt is used in coordination with the rotating rod, the bevel gear one, the rotating shaft, the tooth plate groove and the transmission wheel three to move the inner cavities of the lower screen plate and the upper screen plate, so that the overlapping apertures of the two are changed, thereby achieving the purpose of changing the size of the screened plastic particles. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 It is a schematic diagram of another viewing angle of the overall structure of the present invention;

[0021] Figure 3 It is a partial cross-sectional view of the overall structure of the present invention;

[0022] Figure 4 It is a schematic diagram of the granulation mechanism of the present invention;

[0023] Figure 5 For the present invention Figure 4 The enlarged structural diagram at A in the middle;

[0024] Figure 6 It is a schematic structural diagram of the material pressing component of the present invention;

[0025] Figure 7 It is a schematic structural diagram of the material pressing assembly of the present invention;

[0026] Figure 8 It is a schematic diagram of the cooling mechanism of the present invention;

[0027] Fig. 9 It is a schematic structural diagram of the cooling mechanism of the present invention from another perspective;

[0028] Fig.10It is a schematic diagram of the cooling component structure of the present invention;

[0029] Fig.11 It is a schematic diagram of the structure of the pelletizing assembly of the present invention;

[0030] Fig.12 It is a schematic diagram of the structure of the screening mechanism of the present invention;

[0031] Fig.13 It is a schematic diagram of the structure of the screening component of the present invention;

[0032] Fig.14 For the present invention Fig.13 The enlarged schematic diagram of point B in the middle;

[0033] Fig.15 It is a schematic diagram of the operating structure of the screening component of the present invention.

[0034] In the figure: 1. Support leg; 2. Cooling mechanism; 21. Shell; 22. Cooling component; 221. Feed hopper; 222. Inclined plate 1; 223. Disc bin; 224. Fan filter plate; 225. Semi-conical collecting bin; 226. Curved filter plate 1; 227. Unloading assembly; 2271. Cylinder sleeve; 2272. Curved air hole plate; 2273. Spiral unloading column; 2274. Curved filter plate 2; 23. Ventilation pipe fittings; 24. Air cooler; 25. Control valve; 26. Air guide pipe; 3. Granulation mechanism; 31. Upper shell; 33. Sliding groove 1; 34. Tensioning device; 35. Spring; 36. Limiting groove 1; 37. Knife roller; 371. Transmission device; 38. Pressing component; 381. U-shaped frame; 382. Sliding Groove 2; 383, cleaning air pipe; 384, pressing assembly; 3841, arc surface connecting plate; 3842, rotating roller; 3843, connecting frame; 3844, threaded groove; 3845, baffle; 3846, rotating device; 3847, rotating groove; 385, transmission wheel 1; 386, rotating device; 387, connecting device; 388, limit groove 2; 4, motor; 5, transmission wheel 2; 6, screening mechanism; 61, screening shell; 62, inclined plate 2; 63, particle outlet; 64, rotating rod; 65, fixed bracket; 66, bevel gear 1; 67, screening component; 671, upper sieve plate; 672, lower sieve plate; 673, cylindrical column; 674, rotating shaft; 675, tooth plate groove; 676, transmission wheel 3. DETAILED DESCRIPTION

[0035] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods. Example

[0036] like Figure 1-3As shown, a plastic granulator capable of screening plastic particles comprises a supporting leg 1, a cooling mechanism 2 is provided in the inner cavity of the supporting leg 1, a granulating mechanism 3 is provided in the front upper part of the cooling mechanism 2, a motor 4 is provided in the middle upper part of the cooling mechanism 2, a transmission wheel 5 is provided at the output end of the motor 4, a screening mechanism 6 is provided at the lower side of the cooling mechanism 2, the left side of the granulating mechanism 3 is connected to the left side of the screening mechanism 6 by a belt, and the left side of the granulating mechanism 3 is connected to the outer surface of the transmission wheel 5 by a belt.

[0037] It should be noted that the specific installation method of the motor 4, the circuit connection method and the control method in the present invention are all conventional designs, which are conventional design means of designers, and plastic making is a process operation after the plastic melt is extruded and formed into a strip, and then quickly cooled by a cooling device to solidify it into a plastic strip.

[0038] By starting the motor 4, the transmission wheel 2 5 is driven to rotate, and the granulation mechanism 3 is operated by the transmission wheel 2 5 in cooperation with the belt to cut and granulate plastic strips of different specifications, and the cut plastic particles are dried and cooled by the cooling mechanism 2, and unqualified tiny plastic particles are removed, and then the unqualified tiny plastic particles are further screened by the screening mechanism 6.

[0039] In order to achieve the purpose of cutting and granulating plastic strips, Figure 4 and Figure 5 As shown, the granulation mechanism 3 includes an upper shell 31, a knife roller 37 is provided on the rear side of the inner cavity of the upper shell 31, the left end of the knife roller 37 passes through the left wall of the inner cavity of the upper shell 31 and is fixedly connected to a transmission device 371, the left part of the outer surface of the transmission device 371 is connected to the outer surface of the transmission wheel 25 through a belt, a sliding groove 33 is provided on the upper side of the left end of the upper shell 31, a spring 35 is fixedly connected to the bottom wall of the inner cavity of the sliding groove 33, a tensioning device 34 is fixedly connected to the upper end of the spring 35, the outer surface of the tensioning device 34 is slidably connected to the inner cavity of the sliding groove 33, a pressing component 38 is provided in the middle part of the inner cavity of the upper shell 31, and a limiting groove 36 is provided on the front side of the left end of the upper shell 31.

[0040] It should be noted that the tensioning device 34 is composed of a slider and a transmission wheel four, and the slider and the transmission wheel four are rotatably connected, the transmission device 371 is formed by merging two transmission wheels four, the upper shell 31 and the motor 4 are both installed at the upper end of the shell 21, the knife roller 37 and the pressing component 38 are both installed in the inner cavity of the upper shell 31, but the knife roller 37 is located directly behind the pressing component 38, and when the plastic strip is placed in the pressing component 38, the transmission device 371 drives the knife roller 37 and the pressing component 38 to operate together by starting the motor 4 through the cooperation of the belt and the transmission wheel 25, so that the pressing component 38 drives the plastic strip The plastic strip is transmitted toward the knife roller 37, and the knife roller 37 rotates to cut the plastic strip. In addition, the pressing component 38 can be adjusted according to the thickness of the plastic strip. Due to the adjustment of the pressing component 38, the tension of the belt connecting the tensioning device 34 and the transmission device 371 changes. Through the change of the tension of the belt, the tensioning device 34 is driven by the elastic force of the spring 35 in the inner cavity of the sliding groove 33 to move up and down as the tension of the belt changes, so that the belt is always connected between the pressing component 38, the tensioning device 34 and the transmission device 371 without affecting the transmission relationship among the three.

[0041] Further explanation, such as Figure 6 As shown, the pressing component 38 includes a U-shaped frame 381, the outer surface of the U-shaped frame 381 is fixedly connected to the front side of the inner cavity of the upper shell 31, the rear side of the upper end of the U-shaped frame 381 is fixedly connected to a cleaning air pipe 383, the rear side of the inner cavity of the U-shaped frame 381 is provided with a left-right symmetrical sliding groove 2 382, ​​the lower side of the left wall and the lower side of the right wall of the inner cavity of the upper shell 31 are connected to a connecting device 387 for rotation together, the left end of the connecting device 387 passes through the left wall of the inner cavity of the U-shaped frame 381 and the left end of the upper shell 31 and is fixedly connected with a rotating device 386, a limiting groove 2 388 is provided on the upper side of the left end of the U-shaped frame 381, a pressing assembly 384 is provided on the rear side of the inner cavity of the U-shaped frame 381, and a transmission wheel 1 385 is provided on the front left side of the pressing assembly 384, and the outer surface of the transmission wheel 1 385, the left side of the outer surface of the sliding groove 1 33 and the right side of the outer surface of the transmission device 371 are connected by a belt.

[0042] It should be noted that the rotating device 386 is composed of a transmission wheel four and a knob, and the connecting device 387 is composed of a long rod and two bevel gears two. The pressing component 38 is installed in the inner cavity of the upper shell 31 through the U-shaped frame 381, and is connected to the tensioning device 34 and the transmission device 371 through a belt by installing the transmission wheel one 385. The rotation of the transmission wheel one 385 drives the pressing component 384 to operate, and the rotating device 386 is installed. The connecting device 387 is driven to rotate by rotating the rotating device 386, and then the pressing component 384 is adjusted by the coordinated use of the sliding groove two 382 and the limiting groove two 388, so that the pressing component 384 is suitable for plastic strips of different specifications. Through the operation of the pressing component 384, the plastic strips are driven to be transported in the direction of the knife roller 37, and the cleaning air pipe 383 is installed, and then used in conjunction with the cooling mechanism 2, the cleaning air pipe 383 cleans the knife roller 37.

[0043] Further explanation, such as Figure 7 As shown, the pressing assembly 384 includes two arc-shaped connecting plates 3841, which are symmetrically arranged in the upper and lower directions. The left and right ends of the two arc-shaped connecting plates 3841 are fixedly connected to the connecting frames 3843. The middle parts of the upper ends of the two connecting frames 3843 on the upper side are provided with thread grooves 3844, and the middle parts of the upper ends of the two connecting frames 3843 on the lower side are provided with rotation grooves 3847. The inner cavities of the thread grooves 3844 and the rotation grooves 3847 on the same side are provided with a rotating device 3846. The front sides of the two connecting frames 3843 on the same horizontal plane are provided with a rotating roller 3842. A baffle 3845 is fixedly connected to the lower end of the connecting plate 3841, and the ends of the two connecting frames 3843 on the lower side that are away from each other are respectively fixedly connected to the lower right and left walls of the inner cavity of the U-shaped frame 381, and the sides of the outer surfaces of the two connecting frames 3843 on the upper side that are away from each other are respectively slidably connected to the inner cavities of the two sliding grooves 2 382, ​​and the left end of the rotating roller 3842 on the upper side passes through the inner cavity of the limiting groove 2 388 and is fixedly connected to the right end of the driving wheel 1 385, and the lower sides of the outer surfaces of the two rotating devices 3846 are respectively meshed and connected with the left and right sides of the outer surface of the connecting device 387.

[0044] It should be noted that the rotating device 3846 is composed of a threaded rod, a long rod with a round block and a bevel gear 2. The connecting frame 3843 has a rotating hole groove that matches the rotating roller 3842. The rotating roller 3842 can rotate in the rotating hole groove cavity of the two connecting frames 3843. The rotation of the bevel gear 2 on the connecting device 387 drives the bevel gear 2 in the rotating device 3846 to rotate, and then drives the rotating device 3846 to rotate. Because the connecting frame 3843 located below is fixed in the inner cavity of the U-shaped frame 381, the rotating roller 3842 in the rotating device 3846 rotates. While the inner cavity of the groove 3847 rotates, the inner cavity of the threaded groove 3844 rotates, driving the two connecting frames 3843 located above to slide up and down in the inner cavity of the sliding groove 382 to the appropriate positions respectively, thereby driving the rotating roller 3842 located above to move up and down, and the rotating roller 3842 located above passes through the inner cavity of the limiting groove 388 and is connected to the transmission wheel 1 385. The rotation of the transmission wheel 1 385 drives the rotating roller 3842 located above to rotate, thereby transmitting the plastic strip sandwiched between the two rotating rollers 3842. Example

[0045] On the basis of the first embodiment, in order to complete the drying, cooling and removal of unqualified tiny plastic particles after cutting, as shown in FIG. Figure 8 and Fig. 9 As shown, the cooling mechanism 2 includes a shell 21, a cooling component 22 is provided in the middle of the inner cavity of the shell 21, a ventilation pipe 23 is provided in the middle of the right wall of the inner cavity of the shell 21, the upper side of the outer surface of the ventilation pipe 23 is fixedly connected to the right side of the cooling component 22, the right end of the ventilation pipe 23 passes through the middle of the right wall of the inner cavity of the shell 21 and is fixedly connected to a cooler 24, an air duct 26 is provided on the right side of the outer surface of the ventilation pipe 23, a control valve 25 is provided in the middle of the outer surface of the air duct 26, and the left end of the air duct 26 passes through the right end of the upper shell 31 and is fixedly connected to the right end of the cleaning air pipe 383.

[0046] It should be noted that the control valve 25 is a prior art, and the specific installation method and circuit connection method and control method of the cooling fan 24 in the present invention are all conventional designs, which are conventional design means of designers.

[0047] When the air cooler 24, the control valve 25 and the air duct 26 are used in coordination, an air flow is generated to clean the knife roller 37 through the cleaning air duct 383, and the cut plastic particles enter the interior of the cooling component 22. The air cooler 24 is started to generate air flow. In the initial state, the control valve 25 is closed, and the air flow acts on the cooling component 22 through the ventilation pipe 23 to dry and cool the plastic particles in the cooling component 22, and at the same time, unqualified tiny plastic particles can be removed.

[0048] Further explanation, such as Fig.10As shown, the cooling component 22 includes a feed hopper 221, an inclined plate 222 is provided on the lower side of the left wall of the inner cavity of the feed hopper 221, a disc bin 223 is provided on the lower side of the outer surface of the feed hopper 221, a fan-shaped filter plate 224 is provided on the lower left part of the outer surface of the disc bin 223, a lower particle assembly 227 is fixedly connected to the lower end of the disc bin 223, a semi-conical collecting bin 225 is provided on the left side of the outer surface of the lower particle assembly 227 and the side of the outer surface of the fan-shaped filter plate 224 away from the disc bin 223, an arc-shaped filter plate 226 is provided on the side of the outer surface of the semi-conical collecting bin 225 that is in contact with the lower particle assembly 227, the upper end of the feed hopper 221 is fixedly connected to the front side of the top wall of the inner cavity of the shell 21 and communicates with the rear side of the inner cavity of the upper shell 31, and the right side of the outer surface of the disc bin 223 is fixedly connected to the upper side of the ventilation pipe 23.

[0049] The plastic pellets enter the inner cavity of the disc bin 223 through the feed hopper 221. The disc bin 223 has an empty slot that matches the ventilation pipe 23. The empty slot is connected to the ventilation pipe 23. The airflow passes through the ventilation pipe 23 and blows into the inner cavity of the disc bin 223 to dry and cool the plastic entering the inner cavity of the disc bin 223. The inclined plate 222 is installed to prevent the airflow from blowing the plastic pellets back to the upper part of the inner cavity of the feed hopper 221 to prevent backflow. At the same time, unqualified tiny particles in the plastic pellets enter the inner cavity of the semi-conical collection bin 225 through the fan-shaped filter plate 224, and are not completely removed. The unqualified tiny particles and plastic particles then enter the lower particle assembly 227, and the lower particle assembly 227 is also affected by the wind force in the ventilation pipe 23. The ventilation pipe 23 itself includes an exhaust plate that is horizontally connected to the lower particle assembly 227 and is located on the right side of the lower particle assembly 227. The airflow in the exhaust plate acts on the plastic particles entering the lower particle assembly 227, so that the remaining unqualified tiny particles are blown into the inner cavity of the semi-conical collection bin 225 through the arc filter plate 226, and the remaining plastic particles enter the screening mechanism 6 through the lower particle assembly 227.

[0050] Further explanation, such as Fig.11 As shown, the particle discharge assembly 227 includes a cylindrical sleeve 2271, the inner cavity of the cylindrical sleeve 2271 is provided with a spiral discharge column 2273, the right side of the outer surface of the cylindrical sleeve 2271 is provided with an arc-shaped air hole plate 2272, the left side of the outer surface of the cylindrical sleeve 2271 is provided with an arc-shaped filter plate 2274, the left side of the outer surface of the arc-shaped filter plate 2274 is fixedly connected to the right side of the outer surface of the arc-shaped filter plate 1 226, and the upper end of the cylindrical sleeve 2271 is fixedly connected to the lower end of the disc bin 223.

[0051] In detail, an arc filter plate 2274 and an arc pore plate 2272 are respectively provided on the left and right sides of the cylindrical sleeve 2271. The aperture of the arc pore plate 2272 is smaller than that of the arc filter plate 2274. The air flow passes through the arc pore plate 2272, allowing unqualified tiny particles to pass through the arc filter plate 2274 and the arc filter plate 1 226 and enter the inner cavity of the semi-conical collection bin 225. Example

[0052] On the basis of Example 1 and Example 2, the plastic pellets after removing the unqualified tiny particles are further screened, such as Fig.12 As shown, the screening mechanism 6 includes a screening shell 61, an inclined plate 62 is provided on the upper side of the inner cavity of the screening shell 61, a particle outlet 63 is provided in the middle of the left end of the screening shell 61, a screening component 67 is provided in the middle of the inner cavity of the screening shell 61, a fixed bracket 65 is fixedly connected to the middle of the left side of the front end of the screening shell 61, and a rotating rod 64 is rotatably connected to the inner cavity of the fixed bracket 65, a bevel gear 66 is provided on the front side of the screening component 67 and the right end of the rotating rod 64, the left side of the outer surface of the rotating rod 64 passes through the left wall of the inner cavity of the shell 21 and is connected to the right side of the outer surface of the rotating device 386 through a belt, and the right end of the screening shell 61 is fixedly connected to the lower side of the right wall of the inner cavity of the shell 21.

[0053] After removing the unqualified tiny particles, the plastic particles enter the inclined plate 2 62 through the particle lowering component 227, and the plastic particles slide down the inclined plate 2 62 to the screening component 67. The qualified plastic particles pass through the screening component 67 and enter the bottom of the inner cavity of the screening material shell 61 and are discharged from the rear. The unqualified larger particles slide through the screening component 67 to the particle outlet 63, and the unqualified tiny particles in the semi-conical collecting bin 225 also fall into the particle outlet 63 and are discharged together through the particle outlet 63. It should be noted that the rotating rod 64 is composed of a long rod and a transmission wheel 4. The transmission wheel four in the movable rod 64 is connected to the transmission wheel four in the rotating device 386 through a belt, and the connecting device 387 is driven to rotate through the rotating device 386. While adjusting the pressing component 384, the rotating rod 64 and the bevel gear 66 are driven to rotate. At the same time, the screening component 67 is adjusted to change the aperture size of the screening component 67 and the specifications of the size of the screened plastic particles. At the same time, the screening component 67 can be separated from the belt connecting the rotating rod 64 and the rotating device 386, and adjusted individually according to production needs.

[0054] In order to be able to screen the plastic particles while changing the pore size, the purpose of screening the plastic particles according to needs, such as Fig.13 , Fig.14 and Fig.15As shown, the screening component 67 includes an upper screen plate 671, two cylindrical columns 673 are provided on the right side of the front end of the upper screen plate 671, and the front ends of the two cylindrical columns 673 both penetrate the front wall of the inner cavity of the screen shell 61, the inner cavities of the two cylindrical columns 673 both rotate rotating shafts 674, and the front ends of the two rotating shafts 674 are fixedly connected with transmission wheels three 676, the inner cavity of the upper screen plate 671 is slidably connected with the lower screen plate 672, and the right side of the front end of the lower screen plate 672 is provided with a tooth plate groove 675, the rear sides of the outer surfaces of the two rotating shafts 674 are respectively meshed with the lower sides of the outer surfaces of the two tooth plate grooves 675, the outer surfaces of the two transmission wheels three 676 are connected by belts, the front end of the left transmission wheel three 676 and the right end of the rotating rod 64 are both provided with a bevel gear one 66, and the outer surfaces of the two bevel gears one 66 are meshed, and the front and rear ends of the upper screen plate 671 are respectively fixedly connected to the front wall and rear wall of the inner cavity of the screen shell 61.

[0055] In detail, it should be explained that the rotating shaft 674 is composed of a round rod and a toothed disk matched with the toothed plate groove 675. The plastic particles fall into the bottom of the inner cavity of the sieve shell 61 through the overlapping holes of the upper sieve plate 671 and the lower sieve plate 672, and the unqualified larger particles fall into the particle outlet 63 along the upper sieve plate 671. The two transmission wheels 3 676 are connected by a belt. When the bevel gear 1 66 rotates, the two transmission wheels 3 676 and the rotating shaft 674 are driven to rotate, and the rotating shaft 674 rotates in the inner cavity of the cylindrical column 673. The rotation of the rotating shaft 674 drives the toothed plate groove 675 and the lower sieve plate 672 to move to a suitable range in the inner cavity of the upper sieve plate 671, so that the overlapping aperture sizes of the upper sieve plate 671 and the lower sieve plate 672 are changed, thereby achieving the purpose of screening the plastic particles according to demand.

[0056] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A plastic granulator capable of screening plastic particles, comprising a support leg (1), characterized in that: A cooling mechanism (2) is provided in the inner cavity of the support leg (1), a granulating mechanism (3) is provided at the front upper portion of the cooling mechanism (2), a motor (4) is provided at the middle upper portion of the cooling mechanism (2), a transmission wheel (5) is provided at the output end of the motor (4), a screening mechanism (6) is provided at the lower side of the cooling mechanism (2), the left side of the granulating mechanism (3) is connected to the left side of the screening mechanism (6) via a belt, and the left side of the granulating mechanism (3) is connected to the outer surface of the transmission wheel (5) via a belt; The granulation mechanism (3) comprises an upper shell (31), a knife roller (37) is provided at the rear side of the inner cavity of the upper shell (31), the left end of the knife roller (37) penetrates the left wall of the inner cavity of the upper shell (31) and is fixedly connected to a transmission device (371), the left part of the outer surface of the transmission device (371) is connected to the outer surface of the second transmission wheel (5) via a belt, a sliding groove (33) is provided at the upper side of the left end of the upper shell (31), a spring (35) is fixedly connected to the bottom wall of the inner cavity of the sliding groove (33), the upper end of the spring (35) is fixedly connected to a tensioning device (34), the outer surface of the tensioning device (34) is slidably connected to the inner cavity of the sliding groove (33), a material pressing component (38) is provided at the middle part of the inner cavity of the upper shell (31), and a limiting groove (36) is provided at the front side of the left end of the upper shell (31); The material pressing component (38) comprises a U-shaped frame (381), the outer surface of the U-shaped frame (381) is fixedly connected to the front side of the inner cavity of the upper shell (31), the upper end rear side of the U-shaped frame (381) is fixedly connected to a cleaning air pipe (383), the inner cavity rear side of the U-shaped frame (381) is provided with two sliding grooves (382) symmetrical on the left and right sides, the lower side of the left wall and the lower side of the right wall of the inner cavity of the upper shell (31) are rotatably connected to a connecting device (387), the left end of the connecting device (387) passes through the U-shaped A rotating device (386) is fixedly connected to the left wall of the inner cavity of the frame (381) and the left end of the upper shell (31); a second limiting groove (388) is provided on the upper side of the left end of the U-shaped frame (381); a material pressing assembly (384) is provided on the rear side of the inner cavity of the U-shaped frame (381); a transmission wheel (385) is provided on the front left side of the material pressing assembly (384); and an outer surface of the transmission wheel (385), a left side of an outer surface of the sliding groove (33) and a right side of an outer surface of the transmission device (371) are connected by a belt; The cooling mechanism (2) comprises a shell (21), a cooling component (22) is provided in the middle of the inner cavity of the shell (21), a ventilation pipe (23) is provided in the middle of the right wall of the inner cavity of the shell (21), the upper side of the outer surface of the ventilation pipe (23) is fixedly connected to the right side of the cooling component (22), the right end of the ventilation pipe (23) passes through the middle of the right wall of the inner cavity of the shell (21) and is fixedly connected to a cooling fan (24), an air guide (26) is provided on the right side of the outer surface of the ventilation pipe (23), a control valve (25) is provided in the middle of the outer surface of the air guide (26), and the left end of the air guide (26) passes through the right end of the upper shell (31) and is fixedly connected to the right end of the cleaning air pipe (383); The screening mechanism (6) comprises a screening shell (61), a second inclined plate (62) is provided on the upper side of the inner cavity of the screening shell (61), a particle outlet (63) is provided in the middle of the left end of the screening shell (61), a screening component (67) is provided in the middle of the inner cavity of the screening shell (61), a fixed bracket (65) is fixedly connected to the middle of the left side of the front end of the screening shell (61), a rotating rod (64) is rotatably connected to the inner cavity of the fixed bracket (65), a bevel gear (66) is provided on the front side of the screening component (67) and the right end of the rotating rod (64), the left side of the outer surface of the rotating rod (64) penetrates the left wall of the inner cavity of the shell (21) and is connected to the right side of the outer surface of the rotating device (386) via a belt, and the right end of the screening shell (61) is fixedly connected to the lower side of the right wall of the inner cavity of the shell (21).

2. A plastic granulator capable of screening plastic particles according to claim 1, characterized in that: The pressing assembly (384) comprises two arc-surface connecting plates (3841) which are symmetrically arranged in the upper and lower parts. The left and right ends of the two arc-surface connecting plates (3841) are fixedly connected to the connecting frames (3843). The middle parts of the upper ends of the two connecting frames (3843) on the upper side are provided with a thread groove (3844). The middle parts of the upper ends of the two connecting frames (3843) on the lower side are provided with a rotation groove (3847). The inner cavities of the thread groove (3844) and the rotation groove (3847) on the same side are provided with a rotation device (3846). The front sides of the two connecting frames (3843) on the same horizontal plane are provided with a rotation device (3846). The movable roller (3842) is fixedly connected to the lower end of the arc surface connecting plate (3841) on the lower side with a baffle (3845), and the ends of the two connecting frames (3843) on the lower side that are away from each other are respectively fixedly connected to the lower right wall and the lower left wall of the inner cavity of the U-shaped frame (381), and the sides of the outer surfaces of the two connecting frames (3843) on the upper side that are away from each other are respectively slidably connected to the inner cavities of the two sliding grooves (382), and the left end of the rotating roller (3842) on the upper side passes through the inner cavity of the limiting groove (388) and is fixedly connected to the right end of the driving wheel (385), and the two rotating devices (3846) are outside.

3. A plastic granulator capable of screening plastic particles according to claim 1, characterized in that: The cooling component (22) comprises a feed hopper (221), a sloping plate (222) is provided on the lower side of the left wall of the inner cavity of the feed hopper (221), a disc bin (223) is provided on the lower side of the outer surface of the feed hopper (221), a fan-shaped filter plate (224) is provided on the lower left side of the outer surface of the disc bin (223), a particle lowering assembly (227) is fixedly connected to the lower end of the disc bin (223), and the left side of the outer surface of the particle lowering assembly (227) and the fan-shaped filter plate (224) are connected to the lower side of the outer surface of the disc bin (223). A semi-conical collecting bin (225) is provided on the side of the outer surface away from the disc bin (223), and an arc-shaped filter plate (226) is provided on the side of the outer surface of the semi-conical collecting bin (225) that is in contact with the lower particle assembly (227). The upper end of the feed hopper (221) is fixedly connected to the front side of the top wall of the inner cavity of the shell (21) and communicates with the rear side of the inner cavity of the upper shell (31), and the right side of the outer surface of the disc bin (223) is fixedly connected to the upper side of the ventilation pipe (23).

4. A plastic granulator capable of screening plastic particles according to claim 3, characterized in that: The particle discharge assembly (227) comprises a cylindrical sleeve (2271), the inner cavity of the cylindrical sleeve (2271) is provided with a spiral discharge column (2273), the right side of the outer surface of the cylindrical sleeve (2271) is provided with an arc-shaped air hole plate (2272), the left side of the outer surface of the cylindrical sleeve (2271) is provided with an arc-shaped filter plate 2 (2274), the left side of the outer surface of the arc-shaped filter plate 2 (2274) is fixedly connected to the right side of the outer surface of the arc-shaped filter plate 1 (226), and the upper end of the cylindrical sleeve (2271) is fixedly connected to the lower end of the disc bin (223).

5. A plastic granulator capable of screening plastic particles according to claim 1, characterized in that: The screening component (67) comprises an upper screen plate (671), two cylindrical columns (673) are provided on the right side of the front end of the upper screen plate (671), and the front ends of the two cylindrical columns (673) penetrate the front wall of the inner cavity of the screening shell (61), the inner cavities of the two cylindrical columns (673) are both rotating shafts (674), and the front ends of the two rotating shafts (674) are both fixedly connected to transmission wheels (676), and the inner cavity of the upper screen plate (671) is slidably connected to a lower screen plate (672), and the front end of the lower screen plate (672) is A toothed plate groove (675) is provided on the right side, and the rear sides of the outer surfaces of the two rotating shafts (674) are respectively meshed and connected with the lower sides of the outer surfaces of the two toothed plate grooves (675). The outer surfaces of the two transmission wheels (676) are connected via a belt. A bevel gear (66) is provided at the front end of the transmission wheel (676) on the left side and the right end of the rotating rod (64), and the outer surfaces of the two bevel gears (66) are meshed and connected. The front end and rear end of the upper sieve plate (671) are respectively fixedly connected to the front wall and rear wall of the inner cavity of the sieve shell (61).

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