A fragment screening mechanism for plastic granule production

Abstract

The present invention relates to the field of plastic recycling technology, and discloses a fragment screening mechanism for producing plastic particles, the fragment screening mechanism for producing plastic particles comprises a frame and a screening bucket, the inner wall of the screening bucket is fixedly installed with a coarse screen plate, the fragment screening mechanism for producing plastic particles drives the rotating shaft to rotate by starting a motor, and at the same time cooperates with a wheel plate, a cam groove, a ball head rod, a push plate, a slide rod, a spiral groove and a stirring shaft to break up the plastic particles inside the screening bucket, and at the same time cooperates with a connecting rod, a slide table and a stirring shaft to flip the plastic particles inside the hopper up and down, further improving the effect of breaking up the plastic particles, avoiding adhesion of the plastic particles, thereby avoiding clogging of the coarse screen plate by the plastic particles, and improving the screening effect and efficiency of the plastic particles, and at the same time utilizing the push rod, the chute, the slide plate and the push rod to dredge the discharge pipe, avoiding clogging of the plastic particles inside the discharge pipe, and improving the discharge efficiency of the plastic particles.

Description

Technical Field

[0001] The invention relates to the technical field of plastic recycling, in particular to a fragment screening mechanism for producing plastic particles. Background Art

[0002] Waste plastic recycling needs to be crushed and cleaned first, and then screened using a screening mechanism to make waste plastic into plastic particles. Plastic particles can be used to make various plastic bags, buckets, basins, toys, furniture, stationery and other daily necessities and various plastic products.

[0003] According to a disclosed fragment screening mechanism (publication number: CN221717529U), in the above application, the device is capable of cleaning the residue on the top of the first screen plate, thereby avoiding the situation in which plastic fragments may remain on the screen in the existing device, solving the problem that the screen of the existing device is prone to clogging, greatly improving the screening efficiency of plastic fragments, and contributing to the efficient production of PET bottle flakes.

[0004] The device cleans the residue to prevent the screen from being clogged. However, the plastic particles after crushing and cleaning may stick together. The volume of the plastic particles stuck together is usually relatively large. The device directly puts the plastic particles into the interior of the shell through the feed port for screening. During the screening process, the sticky plastic particles will still easily cause the screen to be clogged, and thus the clogging of the screen cannot be fully avoided, which seriously reduces the screening effect and efficiency of the plastic particles. Summary of the Invention

[0005] The object of the present invention is to provide a debris screening mechanism for plastic granule production to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a fragment screening mechanism for the production of plastic particles, comprising a frame and a screen bucket, wherein a spring is fixedly mounted on the top of the frame, an end of the spring away from the frame is fixedly mounted on the outer wall of the screen bucket, a coarse screen plate is fixedly mounted on the inner wall of the screen bucket, a fine screen plate is fixedly mounted on the inner wall of the screen bucket, a vibration motor is fixedly mounted on the outer wall of the screen bucket, a bracket is fixedly mounted on the top of the screen bucket, a hopper is fixedly mounted on the inner wall of the screen bucket, a discharge pipe is fixedly mounted on the bottom of the hopper, and a bulk material mechanism to prevent plastic adhesion is provided on the screen bucket. By setting The scattering mechanism can fully scatter the crushed and cleaned plastic particles. The interior of the screen bucket is provided with a material-splitting mechanism to prevent plastic accumulation. The material-splitting mechanism can make the plastic particles evenly laid on the coarse screen plate. The interior of the screen bucket is provided with a dust removal mechanism to prevent dust from splashing. The dust removal mechanism can prevent dust from splashing and polluting the surrounding air during the screening of plastic particles. The scattering mechanism includes a slide, a servo motor, a push plate, a slide plate, a stirring shaft, a spiral groove, a rotating rod, a wheel disc, a cam groove, a connecting rod, a ball head rod, a slide rod, a push rod, a chute, and a push rod. The slide is slidably connected to the inner wall of the hopper. The slide passes through the hopper, the inner wall of the slide is rotatably connected to the stirring shaft, and the stirring shaft passes through the slide, a spiral groove is provided on the stirring shaft, the servo motor is fixedly installed on the inner wall of the screen bucket, the output end of the servo motor is fixedly installed with a rotating rod, the end of the rotating rod away from the servo motor passes through the screen bucket and is fixedly installed with a wheel disc, a cam groove is provided on the wheel disc, the side wall of the wheel disc is hinged with a connecting rod, the end of the connecting rod away from the wheel disc is hinged to the outer wall of the stirring shaft, the push plate is slidably connected to the inner wall of the screen bucket, and the push plate passes through the screen bucket, and a ball head rod is fixedly installed on the bottom of the push plate, and the ball head rod is far away One end of the push plate is fitted with the inner wall of the cam groove, and the rotation of the wheel disc cooperates with the cam groove and the ball head rod to drive the push plate to slide back and forth inside the screen bucket. A slide rod is fixedly installed on the top of the push plate, and the outer wall of the slide rod is fitted with the inner wall of the spiral groove. By setting the slide rod and cooperating with the spiral groove, the stirring shaft can be driven to rotate back and forth on the inner wall of the slide. A push rod is fixedly installed on the side wall of the push plate, and the slide plate is slidably connected to the side wall of the screen bucket. An inclined groove is provided on the slide plate, and the outer wall of the push rod is fitted with the inner wall of the inclined groove. A push rod is fixedly installed on the outer wall of the slide plate, and the push rod extends to the inside of the discharge pipe away from one end of the slide plate.

[0007] According to the above technical solution, the material leveling mechanism includes a rotating shaft, a material distribution plate, a hollow rod, a guide rod, a sliding shaft, a connecting rod, a material distribution plate, an L-plate, a through groove, a support rod, a leather wheel, an eccentric rod, a driving shaft, a spinning groove, a shift rod and a pressure rod; one end of the rotating shaft is rotatably connected to the outer wall of the coarse screen plate, and the other end of the rotating shaft is fixedly installed with a material distribution plate, and the outer wall of the rotating shaft is fixedly installed with a hollow rod, and the inner wall of the material distribution plate is rotatably connected to the driving shaft. When the rotating shaft rotates back and forth, it will drive the material distribution plate to swing back and forth. A spinning groove is provided on the driving shaft, and a shift rod is fixedly installed on the top of the driving shaft. When the material distribution plate slides back and forth up and down, the L-plate can move up and down, so that the pressure rod reciprocates up and down in the spinning groove, so that the driving shaft drives the shift rod to swing inside the material distribution plate.

[0008] According to the above technical solution, the inner wall of the screen bucket is slidably connected to a guide rod, and the guide rod passes through the screen bucket. A sliding shaft is fixedly installed on the bottom of the guide rod, and the outer wall of the sliding shaft is fitted on the inner wall of the hollow rod. The side wall of the guide rod is hinged with a connecting rod, and the end of the connecting rod away from the guide rod is hinged to the outer wall of the slide. By arranging the guide rod in conjunction with the sliding shaft and the hollow rod, the rotating shaft can be driven to rotate back and forth on the coarse screen plate.

[0009] According to the above technical solution, the outer wall of the dividing disc is slidably connected to a dividing plate, the outer wall of the dividing plate is fixedly installed with an L-plate, a through groove is provided on the L-plate, and a pressure rod is fixedly installed on the side wall of the L-plate. The end of the pressure rod away from the L-plate is attached to the inner wall of the spinning groove. The dividing plate can be used to control the opening and closing of the dividing disc, so that the plastic particles inside the dividing disc can be quantitatively arranged on the coarse screen plate for screening, which is beneficial to improving the screening effect of the plastic particles.

[0010] According to the above technical solution, a support rod is fixedly installed on the outer wall of the rotating shaft, and the support rod is rotatably connected to a leather wheel at one end away from the rotating shaft. The leather wheel is attached to the upper surface of the coarse screen plate. The reciprocating rotation of the rotating shaft and the support rod can drive the leather wheel to roll back and forth on the upper surface of the coarse screen plate, thereby making the leather wheel rotate back and forth on the outer wall of the support rod.

[0011] According to the above technical solution, an eccentric rod is fixedly installed on the outer wall of the pulley, and the outer wall of the eccentric rod is fitted to the inner wall of the through slot. By arranging the eccentric rod to cooperate with the through slot, the L-plate can be pushed and pulled back and forth.

[0012] According to the above technical solution, the dust removal mechanism includes a slider, a rocker arm, a dust hood, a limit slot, a dust collector, a hose, a cross bar, a cross slot, a side plate, a support shaft, a gear, a limit rod, an L rod and a rack. The slider is slidably connected to the inner wall of the bracket, and the bottom of the slider is hinged with a rocker arm. The bottom of the rocker arm is fixedly installed with a dust hood. A limit slot is provided on the rocker arm. The top of the bracket is fixedly installed with a dust collector, and the input end of the vacuum cleaner is fixedly installed with a hose. The end of the hose away from the vacuum cleaner is fixedly installed on the top of the dust hood. The interior of the dust hood is connected with the input end of the vacuum cleaner through a hose. The bottom of the dust hood is open, and the opening at the bottom of the dust hood is used for dust suction. The dust generated by the screening of plastic particles can be adsorbed by the vacuum cleaner in combination with the hose and the dust hood.

[0013] According to the above technical solution, a cross bar is fixedly installed on the outer wall of the slider, a cross groove is opened on the cross bar, a side plate is fixedly installed on the bottom of the cross bar, a support shaft is fixedly installed on the side wall of the side plate, the outer wall of the support shaft is rotatably connected with a gear, and a limiting rod is fixedly installed on the outer wall of the gear, and the outer wall of the limiting rod is fitted to the inner wall of the limiting groove. By setting the limiting rod and cooperating with the limiting groove, the rocking arm can be pushed and pulled back and forth.

[0014] According to the above technical solution, an L-rod is fixedly installed on the outer wall of the dividing plate, and the outer wall of the L-rod is fitted on the inner wall of the transverse groove.

[0015] According to the above technical solution, a rack is fixedly installed on the inner wall of the bracket, the rack is engaged with the gear, the rotating rod is rotatably connected to the through-hole of the screen bucket, and the interior of the hopper is connected to the interior of the discharge pipe.

[0016] Compared with the prior art, the present invention provides a fragment screening mechanism for plastic granule production, which has the following beneficial effects:

[0017] 1. The fragment screening mechanism for plastic granule production drives the rotating shaft to rotate by starting the motor, and cooperates with the wheel plate, cam groove, ball head rod, push plate, slide rod, spiral groove and stirring shaft to break up the plastic granules inside the screen bucket. At the same time, it cooperates with the connecting rod, slide table and stirring shaft to flip the plastic granules inside the hopper up and down, thereby further improving the effect of breaking up the plastic granules and avoiding the adhesion of the plastic granules, thereby avoiding the clogging of the coarse screen plate by the plastic granules, and improving the screening effect and efficiency of the plastic granules. At the same time, the push rod, chute, slide plate and push rod can be used to dredge the discharge pipe to avoid the plastic granules from being blocked inside the discharge pipe, thereby improving the discharge efficiency of the plastic granules.

[0018] 2. The fragment screening mechanism for plastic particle production can drive the distribution plate to swing back and forth above the coarse screen plate through the up and down reciprocating sliding of the slide plate in conjunction with the connecting rod, guide rod, sliding shaft, hollow rod and rotating shaft. The reciprocating swing of the coarse screen plate can make the plastic particles inside it evenly scattered on the surface of the coarse screen plate, thereby avoiding the accumulation of plastic particles on the coarse screen plate, and then avoiding the blockage of the coarse screen plate, so that the plastic particles can be fully screened, thereby further improving the screening effect of the plastic particles. At the same time, in conjunction with the support rod, leather wheel, eccentric rod, through groove and L plate, the distribution plate can discharge plastic particles onto the coarse screen plate in a quantitative manner, so that the plastic particles can fall evenly on the coarse screen plate, which is conducive to giving full play to the screening performance of the coarse screen plate and improving the screening effect of plastic particles.

[0019] 3. The fragment screening mechanism for plastic particle production can drive the dust hood to move back and forth above the coarse screen plate through the reciprocating swing of the distribution plate in conjunction with the distribution plate, L-rod, horizontal groove, cross bar, slider, and rocker arm. The reciprocating movement of the dust hood can expand its dust suction range, so that the dust hood can fully absorb the floating dust and improve the dust removal effect. At the same time, the side plate, support shaft, gear, rack, limit rod, limit groove, and rocker arm can drive the dust hood to swing back and forth. The reciprocating swing of the dust hood can expand the dust suction angle of the dust hood, thereby further increasing the dust suction range of the dust hood and further improving the dust removal effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly describes the drawings required for the specific embodiments or the description of the prior art. Similar elements or parts are generally identified by similar reference numerals throughout the drawings. Elements or parts in the drawings are not necessarily drawn to scale.

[0021] Figure 1 This is a schematic diagram of the overall structure of the front side of the present invention;

[0022] Figure 2 This is a schematic diagram of the overall structure of the back side of the present invention;

[0023] Figure 3 It is a schematic diagram of the cross-sectional structure of the present invention from a side view;

[0024] Figure 4 It is a partial structural diagram of the hopper and bulk material mechanism of the present invention;

[0025] Figure 5 This is a schematic diagram of the overall structure of the material distribution tray of the present invention;

[0026] Figure 6 Schematic diagram of the overall structure of the dust collecting hood of the present invention;

[0027] Figure 7 For the present invention Figure 1 A schematic diagram of the enlarged structure at point A;

[0028] Figure 8 For the present invention Figure 1 Schematic diagram of the enlarged structure at point B.

[0029] In the figure: 1. frame; 2. screen bucket; 3. spring; 4. coarse screen plate; 5. fine screen plate; 6. vibration motor; 7. bracket; 8. hopper; 9. discharge pipe; 10. bulk material mechanism; 101. slide; 102. servo motor; 103. push plate; 104. slide plate; 105. stirring shaft; 106. spiral groove; 107. rotating rod; 108. wheel; 109. cam groove; 1010. connecting rod; 1011. ball head rod; 1012. sliding rod; 1013. push rod; 1014. chute; 1015. push rod; 11. material leveling mechanism; 111. rotating shaft; 112. material distribution plate; 113. hollow rod; 114. guide Rod; 115, sliding shaft; 116, connecting rod; 117, dividing plate; 118, L plate; 119, through slot; 1110, support rod; 1111, pulley; 1112, eccentric rod; 1113, drive shaft; 1114, spinning slot; 1115, shift rod; 1116, pressure rod; 12, dust removal mechanism; 121, slider; 122, rocker arm; 123, dust hood; 124, limiting slot; 125, vacuum cleaner; 126, hose; 127, cross bar; 128, cross slot; 129, side plate; 1210, support shaft; 1211, gear; 1212, limiting rod; 1213, L rod; 1214, rack. DETAILED DESCRIPTION

[0030] The following will provide a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0031] Please refer to Figures 1-8, one embodiment of the present invention is: a fragment screening mechanism for plastic granule production, comprising a frame 1 and a screen bucket 2, a spring 3 is fixedly installed on the top of the frame 1, and the end of the spring 3 away from the frame 1 is fixedly installed on the outer wall of the screen bucket 2, a coarse screen plate 4 is fixedly installed on the inner wall of the screen bucket 2, a fine screen plate 5 is fixedly installed on the inner wall of the screen bucket 2, and a vibration motor 6 is fixedly installed on the outer wall of the screen bucket 2. Starting the vibration motor 6 makes the screen bucket 2 vibrate at a high frequency. The high-frequency vibration of the screen bucket 2 cooperates with the coarse screen plate 4 and the fine screen plate 5 to screen the plastic particles twice, and obtain three groups of plastic particles of different sizes for subsequent processing. A bracket 7 is fixedly installed on the top of the screen bucket 2, a hopper 8 is fixedly installed on the inner wall of the screen bucket 2, and a discharge pipe 9 is fixedly installed on the bottom of the hopper 8. The interior of the hopper 8 is connected to the interior of the discharge pipe 9. First, the crushed and cleaned plastic particles are The material particles are poured into the interior of the hopper 8, so that the plastic particles inside the hopper 8 fall into the interior of the distribution plate 112 through the discharge pipe 9, and then pass through the distribution plate 112 on the coarse screen plate 4. The screen bucket 2 is provided with a bulking mechanism 10 to prevent plastic adhesion. By setting the bulking mechanism 10, the crushed and cleaned plastic particles can be fully broken up to avoid the plastic particles sticking together and causing the coarse screen plate 4 to be blocked. The interior of the screen bucket 2 is provided with a leveling mechanism 11 to prevent plastic accumulation. By setting the leveling mechanism 11, the plastic particles can be evenly laid on the coarse screen plate 4, which can not only prevent the accumulation of plastic particles, but also improve the screening effect of plastic particles. The interior of the screen bucket 2 is provided with a dust removal mechanism 12 to prevent dust from splashing. By setting the dust removal mechanism 12, dust can be prevented from splashing and polluting the surrounding air during the screening process of plastic particles.The bulking mechanism 10 includes a slide 101, a servo motor 102, a push plate 103, a slide plate 104, a stirring shaft 105, a spiral groove 106, a rotating rod 107, a wheel 108, a cam groove 109, a connecting rod 1010, a ball head rod 1011, a slide 1012, a push rod 1013, a chute 1014, and a push rod 1015. The slide 101 is slidably connected to the inner wall of the hopper 8, and the slide 101 passes through the hopper 8. The inner wall of the slide 101 is rotatably connected to the stirring shaft 105, and the stirring The shaft 105 passes through the slide 101, and a spiral groove 106 is provided on the stirring shaft 105. The servo motor 102 is fixedly mounted on the inner wall of the sieve bucket 2. A rotating rod 107 is fixedly mounted on the output end of the servo motor 102. The end of the rotating rod 107 away from the servo motor 102 passes through the sieve bucket 2 and a wheel disc 108 is fixedly mounted. The rotating rod 107 is rotatably connected to the penetration of the sieve bucket 2. When the servo motor 102 is started, the rotating rod 107 is driven to rotate. When the rotating rod 107 rotates, the wheel disc 108 is driven to rotate synchronously. 8 is provided with a cam groove 109, the side wall of the wheel disc 108 is hinged with a connecting rod 1010, the end of the connecting rod 1010 away from the wheel disc 108 is hinged to the outer wall of the stirring shaft 105, the push plate 103 is slidably connected to the inner wall of the sieve bucket 2, and the push plate 103 passes through the sieve bucket 2, and a ball head rod 1011 is fixedly installed at the bottom of the push plate 103, and the end of the ball head rod 1011 away from the push plate 103 is fitted on the inner wall of the cam groove 109. When the wheel disc 108 rotates, the cam groove 109 on its outer wall will reciprocate to squeeze the ball head rod 1011. The head rod 1011 causes the ball head rod 1011 to push and pull the push plate 103 back and forth, causing the push plate 103 to slide back and forth on the inner wall of the sieve bucket 2. A slide bar 1012 is fixedly mounted on the top of the push plate 103. The outer wall of the slide bar 1012 fits against the inner wall of the spiral groove 106. As the push plate 103 slides back and forth, it drives the slide bar 1012 to move back and forth against the inner wall of the spiral groove 106. At the same time, the slide bar 1012 reciprocates and squeezes the spiral groove 106, causing the stirring shaft 105 to rotate back and forth on the inner wall of the slide 101.

[0032] A push rod 1013 is fixedly installed on the side wall of the push plate 103, and the slide plate 104 is slidably connected to the side wall of the screen bucket 2. An inclined groove 1014 is provided on the slide plate 104, and the outer wall of the push rod 1013 fits against the inner wall of the inclined groove 1014. During the reciprocating sliding of the push plate 103 on the inner wall of the screen bucket 2, the push rod 1013 will drive the push rod 1013 to move back and forth against the inner wall of the inclined groove 1014. At this time, the push rod 1013 will push and pull the slide plate 104 back and forth, so that the slide plate 104 slides back and forth up and down on the side wall of the screen bucket 2, thereby further improving the effect of breaking up the plastic particles, avoiding adhesion of the plastic particles, and thus avoiding clogging of the coarse screen plate 4 by the plastic particles, thereby improving the screening effect and efficiency of the plastic particles.

[0033] A push rod 1015 is fixedly installed on the outer wall of the slide 104, and the push rod 1015 extends to the inside of the discharge pipe 9 away from one end of the slide 104. When the slide 104 slides back and forth, it will drive the push rod 1015 to move back and forth up and down inside the discharge pipe 9. The up and down reciprocating movement of the push rod 1015 can clear the discharge pipe 9, avoiding the plastic particles from getting stuck inside the discharge pipe 9 and causing the discharge pipe 9 to be blocked.

[0034] When this embodiment is working: first, the crushed and cleaned plastic particles are poured into the interior of the hopper 8, so that the plastic particles inside the hopper 8 fall into the interior of the distribution plate 112 through the discharge pipe 9, and then pass through the distribution plate 112 on the coarse screen plate 4, and at the same time start the vibration motor 6 to make the screen bucket 2 vibrate at high frequency. The high-frequency vibration of the screen bucket 2 cooperates with the coarse screen plate 4 and the fine screen plate 5 to screen the plastic particles twice, and obtain three groups of plastic particles of different sizes for subsequent processing. At the same time, the servo motor 102 is started to drive the rotating rod 107 to rotate. When the rotating rod 107 rotates, it will drive the wheel disc 108 to rotate synchronously. When the wheel disc 108 rotates, the cam groove 109 on its outer wall will reciprocate and squeeze The ball head rod 1011 pushes and pulls the push plate 103 back and forth, causing the push plate 103 to slide back and forth on the inner wall of the sieve bucket 2. The push plate 103 slides back and forth while driving the slide bar 1012 to fit the inner wall of the spiral groove 106 and move back and forth. At the same time, the slide bar 1012 squeezes the spiral groove 106 back and forth, causing the stirring shaft 105 to rotate back and forth on the inner wall of the slide 101. The reciprocating rotation of the stirring shaft 105 can break up the plastic particles inside the sieve bucket 2 to avoid adhesion of the plastic particles. At the same time, the rotation of the wheel disc 108 will drive one end of the connecting rod 1010 to do a circular motion around the rotating rod 107, while the other end of the connecting rod 1010 The stirring shaft 105 can be pushed and pulled back and forth, so that the stirring shaft 105 drives the slide 101 to slide back and forth on the inner wall of the hopper 8. At the same time, the stirring shaft 105 can move back and forth up and down inside the hopper 8, so that the stirring shaft 105 can move back and forth inside the hopper 8 during the reciprocating rotation. At this time, the stirring shaft 105 can not only break up the plastic particles, but also turn the plastic particles inside the hopper 8 back and forth up and down, thereby further improving the effect of breaking up the plastic particles. The broken plastic particles can not only be fully screened by the coarse screen plate 4, but also can avoid the plastic particles from clogging the coarse screen plate 4, thereby avoiding the occurrence of blockage, thereby improving the screening effect and efficiency of the plastic particles. At the same time, the push plate 103 will drive the push rod 1013 to move back and forth against the inner wall of the chute 1014 during the reciprocating sliding of the inner wall of the sieve bucket 2. At this time, the push rod 1013 will push and pull the slide plate 104 back and forth, so that the slide plate 104 will slide back and forth on the side wall of the sieve bucket 2. When the slide plate 104 slides back and forth, it will drive the push rod 1015 to move back and forth inside the discharge pipe 9. The up and down reciprocating movement of the push rod 1015 can dredge the discharge pipe 9 to avoid the plastic particles getting stuck in the discharge pipe 9 and causing the discharge pipe 9 to be blocked, so that the plastic particles inside the hopper 8 can be smoothly discharged into the interior of the sieve bucket 2 through the discharge pipe 9 for screening.

[0035] Please refer to Figures 1-8As shown, on the basis of the above embodiment, another embodiment of the present invention further includes a material sparging mechanism 11 and a dust removal mechanism 12, the material sparging mechanism 11 includes a rotating shaft 111, a material distribution plate 112, a hollow rod 113, a guide rod 114, a sliding shaft 115, a connecting rod 116, a material distribution plate 117, an L plate 118, a through groove 119, a support rod 1110, a pulley 1111, an eccentric rod 1112, a drive shaft 1113, a spinning groove 1114, a shifting rod 1115 and a pressing rod 1116; one end of the rotating shaft 111 is rotatably connected to the outer wall of the coarse screen plate 4, and the other end of the rotating shaft 111 is fixedly installed with a material distribution plate 1 12. An opening is provided on the distribution plate 112 for discharging plastic particles. The reciprocating rotation of the rotating shaft 111 drives the distribution plate 112 to swing back and forth above the coarse screen plate 4. The reciprocating swing of the coarse screen plate 4 can make the plastic particles inside it evenly scattered on the surface of the coarse screen plate 4, thereby avoiding the accumulation of plastic particles on the coarse screen plate 4, and thus avoiding the blockage of the coarse screen plate 4. The outer wall of the rotating shaft 111 is fixedly installed with a hollow rod 113, and the inner wall of the distribution plate 112 is rotatably connected to the driving shaft 1113. The driving shaft 1113 is provided with a spinning groove 1114. The driving shaft 11 The top of 13 is fixedly installed with a shift rod 1115, the inner wall of the screen bucket 2 is slidably connected with a guide rod 114, and the guide rod 114 passes through the screen bucket 2, and the bottom of the guide rod 114 is fixedly installed with a sliding shaft 115. The outer wall of the sliding shaft 115 fits the inner wall of the hollow rod 113, and the guide rod 114 slides back and forth while driving the sliding shaft 115 to fit the inner wall of the hollow rod 113 and move back and forth. At the same time, the sliding shaft 115 pushes and pulls the hollow rod 113 back and forth, so that the hollow rod 113 drives the rotating shaft 111 to rotate back and forth on the outer wall of the coarse screen plate 4. The side wall of the guide rod 114 is hinged with a connecting rod 116, and the connecting rod 116 is far One end of the guide rod 114 is hinged to the outer wall of the slide 104. While the slide 104 slides back and forth up and down on the side wall of the screen bucket 2, it pushes and pulls the connecting rod 116 back and forth, so that the connecting rod 116 pushes and pulls the guide rod 114 back and forth, and then the guide rod 114 slides back and forth on the inner wall of the screen bucket 2. The outer wall of the distribution plate 112 is slidably connected to the distribution plate 117, and the outer wall of the distribution plate 117 is fixedly installed with an L-plate 118, and a through groove 119 is opened on the L-plate 118. The side wall of the L-plate 118 is fixedly installed with a pressure rod 1116, and the end of the pressure rod 1116 away from the L-plate 118 is attached to the inner wall of the spinning groove 1114.

[0036] A support rod 1110 is fixedly installed on the outer wall of the rotating shaft 111, and the support rod 1110 is rotatably connected to the end of the rotating shaft 111 away from the rotating shaft 111, and the leather wheel 1111 is attached to the upper surface of the coarse screen plate 4. During the reciprocating rotation of the rotating shaft 111, the support rod 1110 can drive the leather wheel 1111 to roll back and forth on the upper surface of the coarse screen plate 4, and then the leather wheel 1111 can be made to rotate back and forth on the outer wall of the support rod 1110. The reciprocating swing of the coarse screen plate 4 can make the plastic particles inside the coarse screen plate 4 evenly scattered on the surface of the coarse screen plate 4, thereby avoiding the accumulation of plastic particles on the coarse screen plate 4, and thus avoiding the blockage of the coarse screen plate 4.

[0037] An eccentric rod 1112 is fixedly installed on the outer wall of the leather wheel 1111, and the outer wall of the eccentric rod 1112 fits against the inner wall of the through groove 119. The reciprocating rotation of the leather wheel 1111, in conjunction with the eccentric rod 1112 and the through groove 119, can drive the dividing plate 117 to slide back and forth on the outer wall of the dividing disk 112. The up and down reciprocating sliding of the dividing plate 117 can make the plastic particles inside the dividing disk 112 slide onto the coarse screen plate 4 in a quantitative manner, which is conducive to giving full play to the screening performance of the coarse screen plate 4 and improving the screening effect of the plastic particles.

[0038] The dust removal mechanism 12 includes a slider 121, a swing rod 122, a dust cover 123, a limiting groove 124, a dust collector 125, a hose 126, a cross bar 127, a cross groove 128, a side plate 129, a support shaft 1210, a gear 1211, a limiting rod 1212, an L rod 1213 and a rack 1214. The slider 121 is slidably connected to the inner wall of the bracket 7. The bottom of the slider 121 is hinged with the swing rod 122, and the bottom of the swing rod 122 is fixedly installed with the dust cover 12 3. A limiting slot 124 is provided on the swing arm 122. A dust collector 125 is fixedly mounted on the top of the bracket 7. A hose 126 is fixedly mounted on the input end of the dust collector 125. The end of the hose 126 away from the dust collector 125 is fixedly mounted on the top of the dust hood 123. The interior of the dust hood 123 is connected to the input end of the dust collector 125 through the hose 126. The bottom of the dust hood 123 is open. When the dust collector 125 is started, the hose 126 is connected to the dust hood 123. 23 can absorb the dust generated during the screening process of plastic particles to prevent dust from splashing around and affecting the surrounding air quality. The outer wall of the slider 121 is fixedly installed with a cross bar 127, and a cross groove 128 is opened on the cross bar 127. The outer wall of the dividing plate 117 is fixedly installed with an L rod 1213. The outer wall of the L rod 1213 fits into the inner wall of the cross groove 128. When the rotating shaft 111 drives the dividing plate 112 to swing back and forth, the L rod 1213 on the outer wall of the dividing plate 117 will fit into the inner wall of the cross groove 128. The inner wall of the cross groove 128 moves back and forth, and at the same time, the L rod 1213 pushes and pulls the cross bar 127 back and forth, so that the cross bar 127 drives the slider 121 to slide back and forth on the inner wall of the bracket 7. The bottom of the cross bar 127 is fixedly installed with a side plate 129, and the side wall of the side plate 129 is fixedly installed with a support shaft 1210. When the slider 121 slides back and forth on the inner wall of the bracket 7, it cooperates with the cross bar 127, the side plate 129 and the support shaft 1210 to drive the gear 1211 to move back and forth synchronously.

[0039] The outer wall of the support shaft 1210 is rotatably connected to a gear 1211, and a rack 1214 is fixedly installed on the inner wall of the bracket 7. The rack 1214 meshes with the gear 1211. When the gear 1211 reciprocates, the gear 1211 can rotate back and forth on the outer wall of the support shaft 1210 in conjunction with the rack 1214 meshed with it. A limiting rod 1212 is fixedly installed on the outer wall of the gear 1211, and the outer wall of the limiting rod 1212 fits the inner wall of the limiting groove 124. When the gear 1211 rotates, it will drive the limiting rod 1212 to make a circular motion around the support shaft 1210. At the same time, the limiting rod 1212 will fit the inner wall of the limiting groove 124 and move back and forth and push and pull the rocker arm 122 back and forth, so that the rocker arm 122 rotates back and forth at the bottom of the slider 121. The reciprocating rotation of the rocker arm 122 can expand the dust collection angle of the dust collection hood 123, thereby further improving the dust collection range of the dust collection hood 123, thereby further improving the dust removal effect.

[0040] When this embodiment is working, the slide plate 104 slides back and forth on the side wall of the screen bucket 2 and pushes and pulls the connecting rod 116 back and forth, so that the connecting rod 116 pushes and pulls the guide rod 114 back and forth, thereby causing the guide rod 114 to slide back and forth on the inner wall of the screen bucket 2. When the guide rod 114 slides back and forth, it drives the sliding shaft 115 to fit the inner wall of the hollow rod 113 and move back and forth. At the same time, the sliding shaft 115 pushes and pulls the hollow rod 113 back and forth, so that the hollow rod 113 drives the rotating shaft 111 to rotate back and forth on the outer wall of the coarse screen plate 4. When the rotating shaft 111 rotates back and forth, it drives the distributing plate 112 to swing back and forth above the coarse screen plate 4. The movement can make the plastic particles inside it evenly spread on the surface of the coarse screen plate 4, thereby avoiding the accumulation of plastic particles on the coarse screen plate 4, and then avoiding the blockage of the coarse screen plate 4, so that the plastic particles can be fully screened, thereby further improving the screening effect of the plastic particles. At the same time, the rotating shaft 111 cooperates with the support rod 1110 to drive the leather wheel 1111 to roll back and forth on the upper surface of the coarse screen plate 4 during the reciprocating rotation. When the leather wheel 1111 rolls back and forth, it will drive the eccentric rod 1112 to do a circular motion around the support rod 1110, and at the same time the eccentric rod 1112 will fit the inner wall of the through groove 119. The reciprocating movement and reciprocating push and pull of the L plate 118 make the L plate 118 drive the dividing plate 117 to slide back and forth on the outer wall of the dividing plate 112. When the dividing plate 117 slides downward and blocks the opening of the dividing plate 112, the plastic particles inside the dividing plate 112 cannot fall down onto the coarse screen plate 4. When the dividing plate 117 slides upward and gradually opens the opening of the dividing plate 112, the plastic particles inside the dividing plate 112 can slide down onto the coarse screen plate 4 for screening. The reciprocating sliding of the dividing plate 117 can make the plastic particles inside the dividing plate 112 slide onto the coarse screen plate 4 in a quantitative manner, so that the dividing plate 112 can The plastic particles are discharged onto the coarse screen plate 4 in a quantitative manner so that the plastic particles can fall evenly on the coarse screen plate 4, which is conducive to giving full play to the screening performance of the coarse screen plate 4 and improving the screening effect of the plastic particles. The L plate 118 moves back and forth up and down, and cooperates with the pressure rod 1116 and the spinning groove 1114 to drive the drive shaft 1113 to rotate back and forth on the inner wall of the distribution plate 112. The reciprocating rotation of the drive shaft 1113 will drive the lever 1115 at its top to swing back and forth inside the distribution plate 112. The reciprocating swing of the lever 1115 can move the plastic particles inside the distribution plate 112 to avoid the plastic particles from being blocked inside the distribution plate 112.

[0041] Start the vacuum cleaner 125, and at the same time cooperate with the hose 126 and the dust collecting hood 123 to absorb the dust generated during the screening process of plastic particles, so as to prevent the dust from flying everywhere and affecting the surrounding air quality. In the process of the rotating shaft 111 driving the distributing plate 112 to swing back and forth, the L rod 1213 on the outer wall of the distributing plate 117 will fit the inner wall of the horizontal groove 128 and move back and forth. At the same time, the L rod 1213 will push and pull the cross bar 127 back and forth, so that the cross bar 127 drives the slider 121 to slide back and forth on the inner wall of the bracket 7. While the slider 121 slides back and forth, the rocker bar 122 can drive the dust collecting hood 123 to move back and forth above the coarse screen plate 4. The reciprocating movement of the dust collecting hood 123 can expand its dust suction range, so that the dust collecting hood 123 can fully absorb the floating dust and improve the dust removal effect. At the same time, the slider 121 reciprocates on the inner wall of the bracket 7 While sliding, the cross bar 127, the side plate 129 and the support shaft 1210 can drive the gear 1211 to move back and forth synchronously. While the gear 1211 moves back and forth, the rack 1214 engaged with it can make the gear 1211 rotate back and forth on the outer wall of the support shaft 1210. When the gear 1211 rotates, it will drive the limit rod 1212 to make a circular motion around the support shaft 1210. At the same time, the limit rod 1212 will fit the inner wall of the limit groove 124 and move back and forth and push and pull the rocker arm 122 back and forth, so that the rocker arm 122 rotates back and forth at the bottom of the slider 121. When the rocker arm 122 rotates back and forth, it will drive the dust hood 123 to swing back and forth. The reciprocating swing of the dust hood 123 can expand the dust suction angle of the dust hood 123, thereby further improving the dust suction range of the dust hood 123, thereby further improving the dust removal effect.

[0042] The above generally describes the present invention in detail. However, it is obvious to those skilled in the art that modifications or improvements may be made based on the present invention. Therefore, modifications or improvements that do not depart from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A fragment screening mechanism for plastic granule production, comprising a frame (1) and a screen bucket (2), wherein a spring (3) is fixedly mounted on the top of the frame (1), and an end of the spring (3) away from the frame (1) is fixedly mounted on the outer wall of the screen bucket (2), characterized in that: A coarse screen plate (4) is fixedly mounted on the inner wall of the sieve bucket (2), a fine screen plate (5) is fixedly mounted on the inner wall of the sieve bucket (2), a vibration motor (6) is fixedly mounted on the outer wall of the sieve bucket (2), a bracket (7) is fixedly mounted on the top of the sieve bucket (2), a hopper (8) is fixedly mounted on the inner wall of the sieve bucket (2), a discharge pipe (9) is fixedly mounted on the bottom of the hopper (8), a bulking mechanism (10) for preventing plastic from sticking is provided on the sieve bucket (2), a material leveling mechanism (11) for preventing plastic from piling up is provided inside the sieve bucket (2), and a dust removal mechanism (12) for preventing dust from splashing is provided inside the sieve bucket (2); The bulking mechanism (10) includes a slide (101), a servo motor (102), a push plate (103), a slide plate (104), a stirring shaft (105), a spiral groove (106), a rotating rod (107), a wheel (108), a cam groove (109), a connecting rod (1010), a ball head rod (1011), a slide rod (1012), a push rod (1013), an inclined groove (1014), and a push rod (1015). The slide (101) is slidably connected to the inner wall of the hopper (8), and the slide (101) passes through the hopper (8). The inner wall of the slide (101) is rotatably connected to a stirring shaft (105), and the stirring shaft (105) passes through the slide (101). A spiral groove (106) is provided on the stirring shaft (105). The servo motor (102) is fixedly mounted on the inner wall of the sieve bucket (2). A rotating rod (107) is fixedly mounted on the output end of the servo motor (102). The end of the rotating rod (107) away from the servo motor (102) passes through the sieve bucket (2) and is fixedly mounted on a wheel disc (108). A cam groove (109) is provided on the wheel disc (108). The side wall of the disk (108) is hinged with a connecting rod (1010), and one end of the connecting rod (1010) away from the wheel disk (108) is hinged to the outer wall of the stirring shaft (105). The push plate (103) is slidably connected to the inner wall of the screen bucket (2), and the push plate (103) passes through the screen bucket (2). A ball head rod (1011) is fixedly installed at the bottom of the push plate (103), and one end of the ball head rod (1011) away from the push plate (103) is attached to the inner wall of the cam groove (109). A sliding rod (1012) is fixedly installed on the top of the push plate (103). The outer wall of the slide rod (1012) is fitted on the inner wall of the spiral groove (106), the side wall of the push plate (103) is fixedly mounted with a push rod (1013), the slide plate (104) is slidably connected to the side wall of the screen bucket (2), the slide plate (104) is provided with an inclined groove (1014), the outer wall of the push rod (1013) is fitted on the inner wall of the inclined groove (1014), the outer wall of the slide plate (104) is fixedly mounted with a push rod (1015), and the push rod (1015) extends from one end of the slide plate (104) to the inside of the discharge pipe (9).

2. A debris screening mechanism for plastic granule production according to claim 1, characterized in that: The material leveling mechanism (11) comprises a rotating shaft (111), a material distribution plate (112), a hollow rod (113), a guide rod (114), a sliding shaft (115), a connecting rod (116), a material distribution plate (117), an L-plate (118), a through groove (119), a support rod (1110), a leather wheel (1111), an eccentric rod (1112), a driving shaft (1113), a spinning groove (1114), a shifting rod (1115) and a pressure rod (1116); One end of the rotating shaft (111) is rotatably connected to the outer wall of the coarse screen plate (4), and a distribution plate (112) is fixedly mounted on the other end of the rotating shaft (111). A hollow rod (113) is fixedly mounted on the outer wall of the rotating shaft (111), and a driving shaft (1113) is rotatably connected to the inner wall of the distribution plate (112). A spinning groove (1114) is formed on the driving shaft (1113), and a shifting rod (1115) is fixedly mounted on the top of the driving shaft (1113).

3. A debris screening mechanism for plastic granule production according to claim 2, characterized in that: The inner wall of the sieve bucket (2) is slidably connected to a guide rod (114), and the guide rod (114) passes through the sieve bucket (2). A sliding shaft (115) is fixedly installed at the bottom of the guide rod (114), and the outer wall of the sliding shaft (115) is fitted on the inner wall of the hollow rod (113). A connecting rod (116) is hinged to the side wall of the guide rod (114), and one end of the connecting rod (116) away from the guide rod (114) is hinged to the outer wall of the slide plate (104).

4. A debris screening mechanism for plastic granule production according to claim 3, characterized in that: The outer wall of the material distribution disc (112) is slidably connected to a material distribution plate (117), and an L-plate (118) is fixedly installed on the outer wall of the material distribution plate (117). A through groove (119) is provided on the L-plate (118), and a pressure rod (1116) is fixedly installed on the side wall of the L-plate (118). The end of the pressure rod (1116) away from the L-plate (118) is attached to the inner wall of the spinning groove (1114).

5. A debris screening mechanism for plastic granule production according to claim 4, characterized in that: A support rod (1110) is fixedly mounted on the outer wall of the rotating shaft (111), and one end of the support rod (1110) away from the rotating shaft (111) is rotatably connected to a pulley (1111), wherein the pulley (1111) is attached to the upper surface of the coarse screen plate (4).

6. A debris screening mechanism for plastic granule production according to claim 5, characterized in that: An eccentric rod (1112) is fixedly mounted on the outer wall of the pulley (1111), and the outer wall of the eccentric rod (1112) is fitted onto the inner wall of the through groove (119).

7. A debris screening mechanism for plastic granule production according to claim 6, characterized in that: The dust removal mechanism (12) comprises a slider (121), a swing rod (122), a dust collecting cover (123), a limiting groove (124), a dust collector (125), a hose (126), a cross bar (127), a cross groove (128), a side plate (129), a support shaft (1210), a gear (1211), a limiting rod (1212), an L rod (1213) and a rack (1214). The slider (121) is slidably connected to the inner wall of the bracket (7). The bottom of the slider (121) is hinged with the swing rod (122). The swing rod (121) is hinged to the inner wall of the bracket (7). 2) is fixedly mounted on the bottom of the dust collecting hood (123), a limiting slot (124) is provided on the upper portion of the swing arm (122), a dust collector (125) is fixedly mounted on the top of the bracket (7), a hose (126) is fixedly mounted on the input end of the dust collector (125), an end of the hose (126) away from the dust collector (125) is fixedly mounted on the top of the dust collecting hood (123), the interior of the dust collecting hood (123) is communicated with the input end of the dust collector (125) via the hose (126), and the bottom of the dust collecting hood (123) is open.

8. A debris screening mechanism for plastic granule production according to claim 7, characterized in that: A cross bar (127) is fixedly mounted on the outer wall of the slider (121), a cross groove (128) is provided on the cross bar (127), a side plate (129) is fixedly mounted on the bottom of the cross bar (127), a support shaft (1210) is fixedly mounted on the side wall of the side plate (129), the outer wall of the support shaft (1210) is rotatably connected to a gear (1211), a limiting rod (1212) is fixedly mounted on the outer wall of the gear (1211), and the outer wall of the limiting rod (1212) is affixed to the inner wall of the limiting groove (124).

9. A debris screening mechanism for plastic granule production according to claim 8, characterized in that: An L-rod (1213) is fixedly mounted on the outer wall of the material dividing plate (117), and the outer wall of the L-rod (1213) is fitted onto the inner wall of the transverse groove (128).

10. A debris screening mechanism for plastic granule production according to claim 9, characterized in that: A rack (1214) is fixedly mounted on the inner wall of the bracket (7), the rack (1214) meshing with the gear (1211), the rotating rod (107) is rotatably connected to the through-hole of the screen bucket (2), and the interior of the hopper (8) is communicated with the interior of the discharge pipe (9).

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