A plastic pelletizer for homogenizing particle size

Abstract

The present invention relates to the field of plastic pelletizing, and in particular to a plastic pelletizer for homogenizing particle size, comprising a shell, an electric conveying roller, a fixed rod and a guide wheel; the shell is rotatably connected to two electric conveying rollers with different diameters through an electric rotating shaft; the shell is fixed with a fixed rod; the fixed rod is rotatably connected to the guide wheel; it also comprises an electric drive roller, etc.; the shell is rotatably connected to the electric drive roller; the electric drive roller is hollow; the electric drive roller is provided with a plurality of conveying grooves. In the present invention, when the detector detects that the size of plastic particles is uneven, the detector installed on the external conveyor first controls the pelletizer to stop, and then controls the external air pump to start, and supplies gas to the connecting ring through the fixed pipe, and the gas enters the airbag ring through the connecting ring, so that the folded airbag ring expands outward and then drives the scraper rod and the elastic block to move outward along the cutter, and then removes the debris and impurities attached to the cutter through the elastic block, so as to ensure the uniformity of the cutter pelletizing.

Description

Technical Field

[0001] The invention relates to the field of plastic pelletizing, in particular to a plastic pelletizer for homogenizing particle sizes. Background Art

[0002] Plastic pelletizing is the process of sending the high-temperature plastic strips extruded from the die to a pelletizer for rolling cutting after being cooled in a cold water tank to form small and uniform plastic particles. However, during the pelletizing process, when the pelletizer stops working, the fast-rotating cutter and conveyor roller will continue to rotate slowly at a certain angle under their own inertia after power failure. At this time, the slowly rotating cutter does not have enough cutting force to cut off the plastic strips sent to the pelletizer in time, causing the plastic strips that have not yet fully hardened to continue to rotate at a certain angle with the cutter rotating under inertia, causing the plastic strips to entangle and solidify on the cutter. Before resuming pelletizing, the plastic strips solidified on the cutter need to be manually removed before pelletizing can continue, reducing production efficiency. Summary of the invention

[0003] In order to overcome the disadvantage that when the pelletizer stops working during the production process, the plastic strips fed into the pelletizer are not cut off in time, which causes the plastic strips that have not yet completely hardened to be entangled and solidified on the cutter, and the plastic strips that are entangled and solidified on the cutter need to be manually removed before pelletizing can continue, the present invention provides a plastic pelletizer for uniform particle size.

[0004] The technical solution of the present invention is: a plastic pelletizer for homogenizing particle size, comprising an outer shell, an electric conveying roller, a fixed rod and a guide wheel; the outer shell is rotatably connected to two electric conveying rollers with different diameters through an electric rotating shaft; the outer shell is fixedly connected to the fixed rod; the fixed rod is rotatably connected to the guide wheel; it also includes an electric drive roller, a connecting roller, a cutter, a collecting box and a cleaning component; the outer shell is rotatably connected to the electric drive roller; the electric drive roller is hollow; the electric drive roller is provided with a plurality of conveying grooves; the electric drive roller is fixedly connected to the connecting roller; the connecting roller is provided with a plurality of connecting grooves, and the connecting grooves are connected to the conveying grooves; the connecting roller is fixedly connected to a plurality of cutters, and the cutters are hollow, and the cavities in the cutters are connected to the connecting grooves; the outer shell is fixedly connected to the collecting box; the outer shell is connected to a cleaning component for cleaning the cutters.

[0005] More preferably, the cleaning assembly includes a fixed tube, a connecting ring, an airbag ring, a scraper rod and an elastic block; the outer shell is fixedly connected to two fixed tubes distributed front and back; each fixed tube is connected to a hollow connecting ring; each connecting ring is rotatably connected to an airbag ring, and the airbag ring is connected to the corresponding connecting ring; the two airbag rings are commonly fixed to a number of rod groups, and the number and position of the rod groups correspond to the cutter; each rod group is composed of two scraper rods, and the scraper rods are in contact with the corresponding cutter side, and the airbag ring is fixed to the scraper rod through a spring rod; each scraper rod is fixed to an elastic block, and the elastic block is in contact with the cutter.

[0006] More preferably, the elastic block is arranged in a wedge shape.

[0007] More preferably, the collecting opening of the collecting box is arranged in a funnel shape.

[0008] More preferably, it also includes a fixed frame, an electric guide rail, a moving block, an electric push rod, a motor, a lever and a camera; the outer shell is fixedly connected to the fixed frame; the fixed frame is fixedly connected to the electric guide rail; the electric guide rail is slidably connected to the moving block; the moving block is fixedly connected to the electric push rod; the telescopic end of the electric push rod is fixedly connected to the motor; the output shaft of the motor is fixedly connected to the lever; and the fixed frame is fixedly connected to the camera.

[0009] More preferably, the end of the lever is arranged in an arc shape.

[0010] More preferably, it also includes a shock absorbing rod; the outer shell is fixedly connected to the shock absorbing rod; the shock absorbing rod is connected to a plurality of shock absorbing parts, and the number and position of the shock absorbing parts correspond to the strip material, and each shock absorbing part is provided with a dynamic vibration absorber.

[0011] More preferably, it also includes a mounting plate, a spring rod body II, a rectangular plate and an electromagnet II; the housing is fixedly connected to the mounting plate; the mounting plate is fixedly connected to a number of spring rod bodies II; the telescopic ends of all the spring rod bodies II are commonly fixedly connected to a rectangular plate, and the rectangular plate is located below the electric conveying roller; the mounting plate is fixedly connected to the electromagnet II, and the electromagnet II adsorbs the rectangular plate.

[0012] More preferably, it also includes a slider, a spring rod body I and an electromagnet I; the outer shell is provided with a plurality of slide grooves; a slider is slidably connected in each slide groove, and the slider is rotationally connected to the electric drive roller, and the slider is fixedly connected to the fixed tube through a connecting block; the outer shell is fixedly connected to the spring rod body I, and the telescopic end of the spring rod body I is fixedly connected to the slider; the outer shell is fixedly connected to a plurality of electromagnets I, and the electromagnets I adsorb the sliders.

[0013] More preferably, the rectangular plate is arranged in a bucket shape.

[0014] The beneficial effect is as follows: the present invention controls the start of an external pump to pass hot air into the hollow electric drive roller, and the hot air enters the cavity of the cutter through the conveying groove and the connecting groove, and controls the electromagnetic valve on the rear side of the electric drive roller to be opened and closed intermittently, so that the hot air in the cavity of the cutter circulates, thereby heating the cutter, so that the strip material wrapped and solidified on the cutter becomes relatively softened, then, controls the start of the external air pump to supply air to the connecting ring through the fixed pipe, and the gas is filled into the folded airbag ring through the connecting ring, thereby causing the outer side of the airbag ring to expand outward, and then the airbag ring drives the scraper rod to move outward along the cutter, and then the scraper rod pushes the strip material wrapped on the cutter away from the cutter, thereby cleaning the cutter.

[0015] When the detector detects that the size of plastic particles is uneven, the detector installed on the external conveyor first controls the pelletizer to stop, and then controls the external air pump to start, and supplies air to the connecting ring through the fixed pipe. The gas enters the airbag ring through the connecting ring, so that the folded airbag ring expands outward and then drives the scraper rod and the elastic block to move outward along the cutter, and then the debris and impurities attached to the cutter are removed by the elastic block, so as to ensure the uniformity of pelletizing by the cutter.

[0016] Before the strip material enters the guide wheel, the shock absorbing part and the strip material contact each other, so that the sensor of the dynamic vibration absorber in the shock absorbing part detects the vibration frequency of the strip material in real time, and then adjusts the dynamic vibration absorber to produce opposite vibration, thereby absorbing the vibration energy of the strip material in real time and improving the smoothness of the movement of the strip material. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic diagram of the structure of a plastic pelletizer for homogenizing particle size disclosed in the present invention;

[0018] Figure 2 A schematic diagram of the combined partial structure of a pelletizer, an electric drive roller, a connecting roller, a cutter, a collecting box, a slider, a spring rod body I, an electromagnet I, a mounting plate, a spring rod body II, a rectangular plate, and an electromagnet II disclosed in the present invention for a plastic pelletizer for homogenizing particle size;

[0019] Figure 3 It is a schematic diagram of the combined partial structure of the electric drive roller, connecting roller, cutting knife, fixed tube, connecting ring, air bag ring, sliding block and spring rod body I disclosed in the plastic pelletizer for homogenizing particle size of the present invention;

[0020] Figure 4 It is a schematic diagram of the combined partial structure of the electric drive roller, the connecting roller and the cutting knife disclosed in the plastic pelletizer for homogenizing the particle size of the present invention;

[0021] Figure 5 It is a schematic diagram of the combined partial structure of the connecting roller, the cutting knife, the connecting ring, the air bag ring, the scraping rod and the elastic block disclosed in the plastic pelletizer for homogenizing the particle size of the present invention;

[0022] Figure 6 It is a schematic diagram of the combined partial structure of the cutter, connecting ring, air bag ring, scraper rod and elastic block disclosed by the plastic pelletizer for homogenizing particle size of the present invention;

[0023] Figure 7 The present invention is a schematic diagram of the combined partial structure of a pelletizer, a fixed frame, an electric guide rail, a moving block, an electric push rod, a motor, a lever, a camera and a shock-absorbing rod disclosed in the plastic pelletizer for homogenizing particle size.

[0024] In the accompanying drawings: 1-housing, 2-electric conveying roller, 3-fixed rod, 4-guide wheel, 5-strip material, 101-electric drive roller, 102-connecting roller, 103-cutter, 104-fixed tube, 105-connecting ring, 106-airbag ring, 107-scraper rod, 108-elastic block, 109-collection box, 201-fixed frame, 202-electric guide rail, 203-moving block, 204-electric push rod, 205-motor, 206-shift rod, 207-camera, 208-shock absorbing rod, 301-slider, 302-spring rod body I, 303-electromagnet I, 304-mounting plate, 305-spring rod body II, 306-rectangular plate, 307-electromagnet II, 11-slide, 1011-conveyor trough, 1021-connecting trough, 2081-shock absorbing part. DETAILED DESCRIPTION

[0025] Embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0026] Example 1: A plastic pelletizer for homogenizing particle size, such as Figure 1-Figure 7 As shown, it includes a housing 1, an electric conveying roller 2, a fixing rod 3 and a guide wheel 4; the housing 1 is rotatably connected to two electric conveying rollers 2 with different diameters through an electric shaft; the housing 1 is fixedly connected to the fixing rod 3; the fixing rod 3 is rotatably connected to the guide wheel 4;

[0027] It also includes an electric drive roller 101, a connecting roller 102, a cutter 103, a collecting box 109 and a cleaning component; the outer shell 1 is rotatably connected to the electric drive roller 101; the electric drive roller 101 is hollow; the electric drive roller 101 is provided with at least ten conveying grooves 1011; the electric drive roller 101 is fixedly connected to the connecting roller 102; the connecting roller 102 is provided with a plurality of connecting grooves 1021, and the connecting grooves 1021 are connected to the conveying grooves 1011; the connecting roller 102 is fixedly connected to a plurality of cutters 103, and the cutters 103 are hollow, and the cavities in the cutters 103 are connected to the connecting grooves 1021; the outer shell 1 is fixedly connected to the collecting box 109; the outer shell 1 is connected to a cleaning component.

[0028] The cleaning assembly includes a fixed tube 104, a connecting ring 105, an airbag ring 106, a scraper rod 107 and an elastic block 108; the outer shell 1 is fixedly connected to two fixed tubes 104 distributed front and back; each fixed tube 104 is connected to a hollow connecting ring 105; each connecting ring 105 is rotatably connected to an airbag ring 106, and the airbag ring 106 is connected to the corresponding connecting ring 105; the two airbag rings 106 are fixedly connected to a plurality of rod groups, and the number and position of the rod groups correspond to the cutter 103; each rod group is composed of two scraper rods 107, and the scraper rod 107 is in contact with the side of the corresponding cutter 103, and the airbag ring 106 is fixedly connected to the scraper rod 107 through a spring rod; each scraper rod 107 is fixedly connected to an elastic block 108, and the elastic block 108 is in contact with the cutter 103.

[0029] The elastic block 108 is wedge-shaped, thereby increasing the contact area between the elastic block 108 and the cutter 103 and improving the cleaning efficiency.

[0030] The collecting opening of the collecting box 109 is arranged in a funnel shape to guide the fallen plastic particles, so as to facilitate the collection of the cut plastic particles and avoid spilling.

[0031] When in use, first connect the air inlet of the external pump to the front side of the hollow electric drive roller 101, and the rear side of the electric drive roller 101 is equipped with a solenoid valve, and the collection box 109 is externally connected to a conveyor, and the external air pump is connected to the fixed pipe 104, then the external extruder is controlled to extrude the plastic strip 5, and after cooling through the external cold water tank, the end of the strip 5 is manually pulled through the guide wheel 4 and placed on the electric conveyor roller 2, then the external drive structure is controlled to rotate the electric drive roller 101, the external drive structure can be an electric motor or an electric motor with a transmission structure such as a belt, so that the electric drive roller 101 drives the connecting roller 102 and the cutter 103 to rotate counterclockwise from the front to the back. It should be noted that Figure 2 The two electric conveyor rollers 2 are controlled to start, and the lower electric conveyor roller 2 rotates clockwise when viewed from front to back, while the upper electric conveyor roller 2 with a smaller diameter rotates counterclockwise when viewed from front to back, so as to convey the cooled strip material 5 to the area between the cutter 103 and the electric conveyor roller 2, and then the cutter 103 cuts the strip material 5 into granules, and the granular materials fall downward to the collecting box 109 for collection, and the collected plastic particles are then transported outwards through an external conveyor to detect the uniformity of the plastic particles.

[0032] When the pelletizer stops working, the fast-rotating cutter 103 and the electric conveying roller 2 will continue to rotate slowly at a certain angle of 30-90 degrees or a larger range under the action of their own inertia after the power is cut off. At this time, the strip material 5 is wound around the slowly rotating cutter 103, and then the strip material 5 is wound and solidified on the cutter 103. At this time, the external pump is controlled to start, and hot air is passed into the hollow electric drive roller 101. The hot air enters the cavity of the cutter 103 through the conveying groove 1011 and the connecting groove 1021, and the solenoid valve on the rear side of the electric drive roller 101 is controlled to be opened and closed at intervals, so that the hot air in the cavity of the cutter 103 circulates, thereby heating the cutter 103 and making the strip material 5 wound and solidified on the cutter 103 relatively softened.

[0033] Next, the external air pump is controlled to start, and air is supplied to the connecting ring 105 through the fixed tube 104. The air is filled into the folded airbag ring 106 through the connecting ring 105, so that the outer side of the airbag ring 106 expands outward, and then the airbag ring 106 drives the scraper rod 107 to move outward along the cutter 103, and then the scraper rod 107 pushes the strip 5 wrapped around the cutter 103 away from the cutter 103, and then the cutter 103 is cleaned. It can continue to be used for pelletizing, so the strip material 5 pushed out by the scraper rod 107 is partially cut off manually, and the cut strip material 5 falls into the pelletizer and is collected manually later. Before restarting the pelletizer, the remaining strip material 5 is manually pulled out to the cutter 103 to continue pelletizing. During normal operation, the airbag ring 106 is vacuumed to shrink the airbag ring 106 and then fix the scraper rod 107 to avoid the airbag ring 106 and the scraper rod 107 being in an unstable state when the cutter 103 rotates rapidly.

[0034] As the airbag ring 106 expands and drives the scraper rod 107 to move outward along the cutter 103, the outer diameter of the airbag ring 106 continues to increase, thereby making the outer diameter of the airbag ring 106 larger than the annular diameter formed by all the cutters 103. The scraper rod 107 will gradually lose contact with the cutter 103, thereby affecting the cleaning of the cutter 103. Therefore, the elastic force of the elastic block 108 is used to replace the scraper rod 107 in continuous close contact with the cutter 103 during movement. The elastic block 108 slides outward closely on both sides of the cutter 103 until the upper part of the elastic block 108 is separated from the blade of the cutter 103. The scraper rod 107 and the elastic block 108 move together to increase the contact area, thereby facilitating the cleaning of the strip material 5.

[0035] It should be noted that initially, the elastic block 108 is located on the side of the cutter 103 close to the connecting roller 102, and the elastic block 108 is in a compressed state. When the elastic block 108 moves outward along the side of the cutter 103, the elastic block 108 gradually releases its elasticity and contacts the side of the cutter 103. When the elastic block 108 moves outward along the side of the cutter 103, the maximum moving distance of the elastic block 108 driven by the airbag ring 106 is: the upper side of the elastic block 108 is higher than the blade of the cutter 103. The blade portion is moved, while the lower side of the elastic block 108 remains in contact with the cutter 103; and at this time, the spring rod in the airbag ring 106 is in a stretched state. After the elastic block 108 pushes the strip 5 off the cutter 103, the external air pump is controlled to evacuate the airbag ring 106, and the airbag ring 106 retracts toward the center. At the same time, the spring rod in the airbag ring 106 drives the elastic block 108 and the scraper rod 107 to move to the side close to the connecting roller 102 for reset under the action of elastic force, and the elastic block 108 is compressed again.

[0036] Under normal circumstances, the plastic particles collected by the collection box 109 are detected in real time by a detector installed on an external conveyor for uniformity of the plastic particles. When it is detected that the size of the plastic particles is uneven, it means that the cutter 103 is attached with debris impurities generated during the pelletizing process. At this time, the detector installed on the external conveyor first controls the pelletizer to stop, and then controls the external air pump to start, and supplies gas to the connecting ring 105 through the fixed tube 104. The gas enters the airbag ring 106 through the connecting ring 105, causing the folded airbag ring 106 to expand outward and then drive the scraper rod 107 and the elastic block 108 to move outward along the cutter 103, and then the debris impurities attached to the cutter 103 are removed through the elastic block 108 to ensure the uniformity of pelletizing by the cutter 103.

[0037] Embodiment 2: Based on embodiment 1, Figure 1 and Figure 7 As shown, it also includes a fixed frame 201, an electric guide rail 202, a moving block 203, an electric push rod 204, a motor 205, a lever 206 and a camera 207; the outer shell 1 is fixedly connected to the fixed frame 201; the fixed frame 201 is bolted to the electric guide rail 202; the electric guide rail 202 is slidably connected to the moving block 203; the moving block 203 is bolted to the electric push rod 204; the telescopic end of the electric push rod 204 is fixedly connected to the motor 205; the output shaft of the motor 205 is fixedly connected to the lever 206; the fixed frame 201 is fixedly connected to the camera 207.

[0038] The end of the lever 206 is arranged in an arc shape, which reduces the friction between the lever 206 and the strip material 5 compared to the L-shaped right-angled arrangement, thereby reducing the wear on the strip material 5.

[0039] It also includes a shock-absorbing rod 208; the shock-absorbing rod 208 is fixedly connected to the outer shell 1; the shock-absorbing rod 208 is connected to a plurality of shock-absorbing parts 2081, and the number and position of the shock-absorbing parts 2081 correspond to the strip material 5, and each shock-absorbing part 2081 is provided with a dynamic vibration absorber.

[0040] When the strip material 5 is conveyed to the cutter 103 by the electric conveying roller 2 after passing through the guide wheel 4, since there are a large number of strip materials 5 on the electric conveying roller 2, the intervals are small, and the moving speed of the strip materials 5 is fast, the strip materials 5 are easy to get close to each other after passing through the guide wheel 4, and finally cross and overlap together, which affects the pelletizing effect of the cutter 103 on the crossed strip materials 5 and reduces the uniformity of the plastic particles. Therefore, in the process of the strip materials 5 being conveyed to the electric conveying roller 2 after passing through the guide wheel 4, the state of the fast-moving strip materials 5 is monitored and observed in real time by the camera 207. If it is found that there is a trend of the strip materials 5 getting close to each other and crossing each other, the camera 207 controls the electric guide rail 202 to make the moving block 203 drive the electric push rod 204, the motor 205, and the lever 206 to move quickly until the strip materials 5 are close to each other. The motor 205 drives the lever 206 to move upward, so that the lever 206 hooks one of the deviated strips 5 upwards, and then the electric guide rail 202 is controlled to drive the moving block 203 to drive the electric push rod 204, the motor 205, and the lever 206 to move horizontally, so that the lever 206 drives the deviated strip 5 to slowly pull it back to its original position, and then the position of the strip 5 on the electric conveying roller 2 is corrected to ensure the uniformity of subsequent pelletizing.

[0041] Since the strip material 5 is suspended for a long distance before being conveyed from the cold water tank to the electric conveying roller 2, the strip material 5 will shake when moving quickly, causing the position of the strip material 5 to deviate and increasing the probability of the strip material 5 approaching and crossing each other. Therefore, before the strip material 5 enters the guide wheel 4, the shock absorbing part 2081 and the strip material 5 are in contact with each other, so that the sensor of the dynamic vibration absorber in the shock absorbing part 2081 detects the vibration frequency of the strip material 5 in real time, and then adjusts the dynamic vibration absorber to produce opposite vibration, thereby absorbing the vibration energy of the strip material 5 in real time, thereby improving the smoothness of the movement of the strip material 5.

[0042] Embodiment 3: Based on embodiment 2, Figure 2 and Figure 3 As shown, it also includes a mounting plate 304, a spring rod body II 305, a rectangular plate 306 and an electromagnet II 307; the housing 1 is fixedly connected to the mounting plate 304; the mounting plate 304 is fixedly connected to a plurality of spring rod bodies II 305; the telescopic ends of all the spring rod bodies II 305 are commonly fixedly connected to a rectangular plate 306, and the rectangular plate 306 is located below the electric conveying roller 2; the mounting plate 304 is fixedly connected to an electromagnet II 307, and the electromagnet II 307 adsorbs the rectangular plate 306.

[0043] It also includes a slider 301, a spring rod body Ⅰ302 and an electromagnet Ⅰ303; the outer shell 1 is provided with two slide grooves 11; each slide groove 11 is slidably connected with a slider 301, and the slider 301 is rotationally connected to the electric drive roller 101, and the slider 301 is fixedly connected to the fixed tube 104 through a connecting block; the outer shell 1 is fixedly connected with the spring rod body Ⅰ302, and the telescopic end of the spring rod body Ⅰ302 is fixedly connected with the slider 301; the outer shell 1 is fixedly connected with a plurality of electromagnets Ⅰ303, and the electromagnets Ⅰ303 adsorb the slider 301.

[0044] The rectangular plate 306 is arranged in a bucket shape, so as to facilitate supporting the strip material 5 and prevent the strip material 5 from falling.

[0045] During normal pelletizing, the cut plastic particles fall downwards and are collected in the collecting box 109. The rectangular plate 306 is fixed under the electric conveying roller 2 under the magnetic attraction of the electromagnet II 307, and the spring rod body II 305 is in a compressed state. When the pelletizer stops working, the electromagnet II 307 is powered off, and the rectangular plate 306 is separated from the magnetic attraction of the electromagnet II 307. The rectangular plate 306 moves to the right to a position between the electric conveying roller 2 and the cutter 103 under the rebound force of the spring rod body II 305, thereby temporarily supporting and storing the strip material 5 pushed out by the scraper rod 107 and the elastic block 108, so as to facilitate subsequent collection by personnel and prevent the strip material 5 pushed out by the scraper rod 107 and the elastic block 108 from falling into the collecting box 109, which affects the plastic particles in the collecting box 109 to be transported outward for inspection through the external conveyor, and is inconvenient for subsequent manual collection.

[0046] During normal pelletizing, the slider 301 and the electromagnet Ⅰ303 contact each other, and the slider 301 pulls the electric drive roller 101, the connecting roller 102 and the cutter 103 to the left under the magnetic force of the electromagnet Ⅰ303, and the spring rod body Ⅰ302 is in a stretched state, so that the cutter 103 is in a normal pelletizing position. When the pelletizer stops working, the electromagnet Ⅰ303 is powered off, and the slider 301 is separated from the magnetic attraction of the electromagnet Ⅰ303. Then, the slider 301 pulls the electric drive roller 101, the connecting roller 102 and the cutter 103 to the right under the rebound force of the spring rod body Ⅰ302, so that the cutter 103 is away from the electric conveying roller 2, thereby increasing the gap between the electric conveying roller 2 and the cutter 103, thereby facilitating the strip material 5 that has not been cut to fall downward from the gap between the electric conveying roller 2 and the cutter 103 onto the rectangular plate 306, and the strip material 5 on the rectangular plate 306 is subsequently collected manually.

[0047] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A plastic pelletizer for homogenizing particle sizes, comprising a housing (1), an electric conveying roller (2), a fixed rod (3) and a guide wheel (4); the housing (1) is rotatably connected to two electric conveying rollers (2) of different diameters via an electric rotating shaft; the housing (1) is fixedly connected to the fixed rod (3); the fixed rod (3) is rotatably connected to the guide wheel (4); the characteristics are: It also comprises an electric drive roller (101), a connecting roller (102), a cutter (103), a collection box (109) and a cleaning component; the outer shell (1) is rotatably connected to the electric drive roller (101); the electric drive roller (101) is hollow; the electric drive roller (101) is provided with a plurality of conveying grooves (1011); the electric drive roller (101) is fixedly connected to the connecting roller (102); the connecting roller (102) is provided with a plurality of connecting grooves (1021), and the connecting grooves (1021) are connected to the conveying grooves (1011); the connecting roller (102) is fixedly connected to a plurality of cutters (103), the cutters (103) are hollow, and the cavities in the cutters (103) are connected to the connecting grooves (1021); the outer shell (1) is fixedly connected to the collection box (109); the outer shell (1) is connected to a cleaning component for cleaning the cutters (103); The cleaning assembly comprises a fixed tube (104), a connecting ring (105), an airbag ring (106), a scraper rod (107) and an elastic block (108); the housing (1) is fixedly connected to two fixed tubes (104) distributed front and back; each fixed tube (104) is connected to a hollow connecting ring (105); each connecting ring (105) is rotatably connected to an airbag ring (106), and the airbag ring (106) is connected to the corresponding connecting ring (105). The two airbag rings (106) are fixedly connected to a plurality of rod groups, and the number and position of the rod groups correspond to the cutter (103); each rod group is composed of two scraper rods (107), and the scraper rods (107) are in contact with the side of the corresponding cutter (103), and the airbag ring (106) is fixedly connected to the scraper rods (107) via spring rods; each scraper rod (107) is fixedly connected to an elastic block (108), and the elastic block (108) is in contact with the cutter (103); Controlling the start of the external pump to pass hot air into the hollow electric drive roller (101), and the hot air enters the cavity of the cutter (103) through the conveying groove (1011) and the connecting groove (1021), and controlling the electromagnetic valve on the rear side of the electric drive roller (101) to be opened and closed at intervals, so that the hot air in the cavity of the cutter (103) circulates, thereby heating the cutter (103) and making the strip material (5) wound and solidified on the cutter (103) relatively softened; Next, the external air pump is controlled to start, and air is supplied to the connecting ring (105) through the fixed tube (104). The air is filled into the folded airbag ring (106) through the connecting ring (105), thereby causing the outer side of the airbag ring (106) to expand outward, and then the airbag ring (106) drives the scraper rod (107) to move outward along the cutter (103), and then the scraper rod (107) pushes the strip material (5) wrapped around the cutter (103) away from the cutter (103), thereby cleaning the cutter (103).

2. A plastic pelletizer for homogenizing particle size according to claim 1, characterized in that: The elastic block (108) is arranged in a wedge shape.

3. A plastic pelletizer for homogenizing particle size according to claim 1, characterized in that: The collecting opening of the collecting box (109) is arranged in a funnel shape.

4. A plastic pelletizer for homogenizing particle size according to claim 1, characterized in that: The invention also comprises a fixed frame (201), an electric guide rail (202), a moving block (203), an electric push rod (204), a motor (205), a lever (206) and a camera (207); the housing (1) is fixedly connected to the fixed frame (201); the fixed frame (201) is fixedly connected to the electric guide rail (202); the electric guide rail (202) is slidably connected to the moving block (203); the moving block (203) is fixedly connected to the electric push rod (204); the telescopic end of the electric push rod (204) is fixedly connected to the motor (205); the output shaft of the motor (205) is fixedly connected to the lever (206); and the fixed frame (201) is fixedly connected to the camera (207).

5. A plastic pelletizer for homogenizing particle size according to claim 4, characterized in that: The end of the lever (206) is arranged in an arc shape.

6. A plastic pelletizer for homogenizing particle size according to claim 1, characterized in that: It also includes a shock absorbing rod (208); the outer shell (1) is fixedly connected to the shock absorbing rod (208); the shock absorbing rod (208) is connected to a plurality of shock absorbing parts (2081), the number and position of the shock absorbing parts (2081) correspond to the strip material (5), and each shock absorbing part (2081) is provided with a dynamic vibration absorber.

7. A plastic pelletizer for homogenizing particle size according to claim 1, characterized in that: The invention also comprises a mounting plate (304), a spring rod body II (305), a rectangular plate (306) and an electromagnet II (307); the housing (1) is fixedly connected to the mounting plate (304); the mounting plate (304) is fixedly connected to a plurality of spring rod bodies II (305); the telescopic ends of all the spring rod bodies II (305) are fixedly connected to the rectangular plate (306), and the rectangular plate (306) is located below the electric conveying roller (2); the mounting plate (304) is fixedly connected to the electromagnet II (307), and the electromagnet II (307) adsorbs the rectangular plate (306).

8. A plastic pelletizer for homogenizing particle size according to claim 7, characterized in that: The invention also comprises a slider (301), a spring rod body I (302) and an electromagnet I (303); the housing (1) is provided with a plurality of slide grooves (11); a slider (301) is slidably connected in each slide groove (11), the slider (301) is rotationally connected to the electric drive roller (101), and the slider (301) is fixedly connected to the fixed tube (104) via a connecting block; the housing (1) is fixedly connected to the spring rod body I (302), and the telescopic end of the spring rod body I (302) is fixedly connected to the slider (301); the housing (1) is fixedly connected to a plurality of electromagnets I (303), and the electromagnets I (303) adsorb the slider (301).

9. A plastic pelletizer for homogenizing particle size according to claim 7, characterized in that: The rectangular plate (306) is arranged in a bucket shape.

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