Fragmentation screening mechanism for plastic particle production

Abstract

The invention relates to the technical field of plastic recycling, and discloses a fragment screening mechanism for plastic particle production, the fragment screening mechanism for plastic particle production comprises a rack and a screening hopper, a coarse screening plate is fixedly installed on the inner wall of the screening hopper, and according to the fragment screening mechanism for plastic particle production, a motor is started to drive a rotating shaft to rotate; meanwhile, plastic particles in the screening hopper can be scattered through cooperation of a wheel disc, a cam groove, a ball head rod, a push plate, a sliding rod, a spiral groove and a stirring shaft, meanwhile, the plastic particles in the hopper can be turned up and down in a reciprocating mode through cooperation of a connecting rod, a sliding table and the stirring shaft, the scattering effect on the plastic particles is further improved, and adhesion of the plastic particles is avoided; accordingly, the plastic particles can be prevented from blocking the coarse screening plate, the screening effect and efficiency of the plastic particles are improved, meanwhile, the discharging pipe can be dredged through the push rod, the inclined groove, the sliding plate and the ejector rod, the plastic particles are prevented from being blocked in the discharging pipe, and the discharging efficiency of the plastic particles is improved.

Description

Technical Field

[0001] The invention relates to the technical field of plastic recycling, in particular to a fragment screening mechanism for plastic particle production. 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 debris screening mechanism (publication number: CN221717529U), in the above application, the device can clean the residue on the top of the first screen plate, thereby avoiding the situation in which plastic debris 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 debris, and contributing to the efficient production of PET bottle flakes.

[0004] The device cleans the residue to prevent the screen from being blocked, but the plastic particles after crushing and cleaning may stick together. The volume of the stuck plastic particles is usually relatively large. The device directly puts the plastic particles into the shell through the feed port for screening. The stuck plastic particles during the screening process may still easily cause the screen to be blocked, and thus the blockage 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 fragment 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 plastic granule production, comprising a frame and a screen bucket, a spring is fixedly installed on the top of the frame, one end of the spring away from the frame is fixedly installed on the outer wall of the screen bucket, a coarse screen plate is fixedly installed on the inner wall of the screen bucket, a fine screen plate is fixedly installed on the inner wall of the screen bucket, a vibration motor is fixedly installed on the outer wall of the screen bucket, a bracket is fixedly installed on the top of the screen bucket, a hopper is fixedly installed on the inner wall of the screen bucket, a feed pipe is fixedly installed on the bottom of the hopper, and a bulk material mechanism to prevent plastic adhesion is provided on the screen bucket, and by setting The dispersing mechanism can fully disperse the crushed and cleaned plastic particles. The interior of the screen bucket is provided with a material leveling mechanism to prevent plastic accumulation. The material leveling 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 dispersing 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 with a 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, a rotating rod is fixedly installed on the output end of the servo motor, the end of the rotating rod away from the servo motor passes through the screen bucket and a wheel disc is fixedly installed, a cam groove is provided on the wheel disc, a connecting rod is hinged on the side wall of the wheel disc, and the end of the connecting rod away from the wheel disc is hinged on 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, a ball head rod is fixedly installed on the bottom of the push plate, and the ball head rod is far away from the cam groove One end of the push plate is fitted with the inner wall of the cam groove, and the rotation of the wheel plate 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 sliding rod is fixedly installed on the top of the push plate, and the outer wall of the sliding rod is fitted with the inner wall of the spiral groove. By setting the sliding rod and cooperating with the spiral groove, the stirring shaft can be driven to reciprocate 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 opened 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 at one end away from the slide plate.

[0007] According to the above technical scheme, 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 supporting rod, a leather wheel, an eccentric rod, a driving shaft, a spinning groove, a shifting 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 with 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 shifting 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 can reciprocate up and down in the spinning groove, so that the driving shaft drives the shifting 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 with 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, the outer wall of the sliding shaft is fitted on the inner wall of the hollow rod, and 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 plate. By arranging the guide rod in conjunction with the sliding shaft and the hollow rod, the rotating shaft can be driven to reciprocate on the coarse screen plate.

[0009] According to the above technical solution, the outer wall of the dividing disc is slidably connected with a dividing plate, the outer wall of the dividing plate is fixedly installed with an L-plate, the L-plate is provided with a through groove, and the side wall of the L-plate is fixedly installed with a pressure rod, and 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 a leather wheel is rotatably connected to the end of the support rod 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 reciprocate 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 reciprocally.

[0012] According to the above technical scheme, the dust removal mechanism includes a slider, a rocker arm, a dust hood, a limit groove, a dust collector, a hose, a cross bar, a cross groove, 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. 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 groove is provided on the rocker arm. A dust collector is fixedly installed on the top of the bracket. A hose is fixedly installed at the input end of the vacuum cleaner. One 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 to the input end of the vacuum cleaner through a hose. The bottom of the dust hood is open. 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 conjunction 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, a limit rod is fixedly installed on the outer wall of the gear, and the outer wall of the limit rod is attached to the inner wall of the limit groove. By setting the limit rod to cooperate with the limit groove, the rocker arm can be pushed and pulled reciprocatingly.

[0014] According to the above technical solution, an L-rod is fixedly mounted on the outer wall of the dividing plate, and the outer wall of the L-rod is fitted to 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 meshed with a gear, the rotating rod is rotatably connected to the penetration point 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 debris 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, and cooperates with the connecting rod, slide table and stirring shaft to flip the plastic granules inside the hopper up and down to further improve the effect of breaking up the plastic granules and avoid the adhesion of the plastic granules, so as to avoid the plastic granules from clogging the coarse screen plate, and improve 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 feeding pipe to avoid the plastic granules from being blocked inside the feeding pipe, and improve the feeding efficiency of the plastic granules.

[0018] 2. The fragment screening mechanism used for the production of plastic particles 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 the coarse screen plate 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 clogging 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 used 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 cooperation 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, and 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] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following is a brief introduction to the drawings required for the specific embodiments or the description of the prior art. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn according to the actual scale.

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

[0022] Figure 2 It 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 the side;

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

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

[0026] Figure 6 It is a 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 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, feed 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 plate; 109, cam groove; 1010, connecting rod; 1011, ball head rod; 1012, sliding rod; 1013, push rod; 1014, inclined groove; 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 groove; 1110, supporting rod; 1111, leather wheel; 1112, eccentric rod; 1113, driving shaft; 1114, spinning groove; 1115, lever; 1116, pressure rod; 12, dust removal mechanism; 121, slider; 122, rocker; 123, dust hood; 124, limiting groove; 125, vacuum cleaner; 126, hose; 127, cross bar; 128, cross groove; 129, side plate; 1210, supporting shaft; 1211, gear; 1212, limiting rod; 1213, L rod; 1214, rack. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] Please refer to Figure 1-Figure 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 one 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. The vibration motor 6 is started to make the screen bucket 2 vibrate at a high frequency. Through the high-frequency vibration of the screen bucket 2, the coarse screen plate 4 and the fine screen plate 5 can be used to screen the plastic particles twice to 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 feed 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 feed 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 on the coarse screen plate 4 through the distribution plate 112. 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 dispersed to avoid the plastic particles sticking together and causing the coarse screen plate 4 to be blocked. The screen bucket 2 is provided with a material leveling mechanism 11 to prevent plastic accumulation. By setting the material 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 screen bucket 2 is provided with a dust removal mechanism 12 to prevent dust from splashing. By setting the dust removal mechanism 12, dust splashing during the screening of plastic particles can be prevented from polluting the surrounding air;The bulk material 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 disc 108, a cam groove 109, a connecting rod 1010, a ball head rod 1011, a slide bar 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 penetrates the slide 101, and a spiral groove 106 is provided on the stirring shaft 105. The servo motor 102 is fixedly installed on the inner wall of the sieve bucket 2. A rotating rod 107 is fixedly installed on the output end of the servo motor 102. The end of the rotating rod 107 away from the servo motor 102 penetrates the sieve bucket 2 and a wheel disc 108 is fixedly installed. 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. A cam groove 109 is provided on the 8, a connecting rod 1010 is hinged on the side wall of the wheel disc 108, and one end of the connecting rod 1010 away from the wheel disc 108 is hinged on the outer wall of the stirring shaft 105, and 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 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, and the cam groove 109 on the outer wall of the wheel disc 108 rotates, and the ball head rod 1011 is reciprocated. The head rod 1011 makes the ball head rod 1011 push and pull the push plate 103 reciprocatingly, so that the push plate 103 slides back and forth on the inner wall of the sieve bucket 2. The top of the push plate 103 is fixedly installed with a slide bar 1012. The outer wall of the slide bar 1012 fits the inner wall of the spiral groove 106. When the push plate 103 slides back and forth, it will drive 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 will reciprocate and squeeze the spiral groove 106, so that the stirring shaft 105 reciprocates 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 a slide plate 104 is slidably connected to the side wall of the screen bucket 2. An inclined groove 1014 is opened on the slide plate 104, and the outer wall of the push rod 1013 is attached to 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 is driven to reciprocate and move in contact with 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, thereby avoiding clogging of the coarse screen plate 4 by the plastic particles, and 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 plate 104, and the push rod 1015 extends to the inside of the discharge pipe 9 away from one end of the slide plate 104. When the slide plate 104 slides back and forth up and down, 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 to prevent 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 in 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, the vibration motor 6 is started to make 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 three groups of plastic particles of different sizes are obtained 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, so that the push plate 103 slides back and forth on the inner wall of the screen 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, so that the stirring shaft 105 rotates 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 screen bucket 2 to avoid the 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, and 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 up and down 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 up and down 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 up and down on the side wall of the sieve bucket 2. When the slide plate 104 slides back and forth up and down, it will drive the push rod 1015 to move back and forth up and down inside the feed pipe 9. The feed pipe 9 can be unblocked through the up and down reciprocating movement of the push rod 1015 to prevent the plastic particles from getting stuck in the feed pipe 9 and causing the feed pipe 9 to be blocked, so that the plastic particles inside the hopper 8 can be smoothly discharged into the screen bucket 2 through the feed pipe 9 for screening.

[0035] Please refer to Figure 1-Figure 8As shown, on the basis of the above embodiment, another embodiment of the present invention also 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 lever 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 the other end of the rotating shaft 111 is fixedly installed with a material distribution plate 1 12, an opening is provided on the material distribution plate 112 for discharging plastic particles. The reciprocating rotation of the rotating shaft 111 will drive the material distribution plate 112 to swing back and forth above the coarse screen plate 4. The reciprocating swing of the coarse screen plate 4 can evenly scatter the plastic particles inside the coarse screen plate 4 on the surface of the coarse screen plate 4, thereby avoiding the accumulation of plastic particles on the coarse screen plate 4, and further avoiding the blockage of the coarse screen plate 4. A hollow rod 113 is fixedly installed on the outer wall of the rotating shaft 111, and a driving shaft 1113 is rotatably connected to the inner wall of the material distribution plate 112. A spinning groove 1114 is provided on the driving shaft 1113. A lever 1115 is fixedly installed on the top of 13, and a guide rod 114 is slidably connected to the inner wall of the screen bucket 2, and the guide rod 114 passes through the screen bucket 2. A sliding shaft 115 is fixedly installed on the bottom of the guide rod 114. The outer wall of the sliding shaft 115 fits the inner wall of the hollow rod 113. When the guide rod 114 slides back and forth, it will drive 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 will push and pull the hollow rod 113 back and forth, so that the hollow rod 113 drives the rotating shaft 111 to reciprocate 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 plate 104. While the slide plate 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 dividing plate 112 is slidably connected with a dividing plate 117. The outer wall of the dividing plate 117 is fixedly installed with an L plate 118. The L plate 118 is provided with a through groove 119. The side wall of the L plate 118 is fixedly installed with a pressure rod 1116. 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 one end of the support rod 1110 away from the rotating shaft 111 is rotatably connected to a leather wheel 1111, 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 reciprocatingly on the upper surface of the coarse screen plate 4, so that the leather wheel 1111 can reciprocate on the outer wall of the support rod 1110, and 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 coordination 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 plate 112. The up and down 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, which is beneficial to give full play to the screening performance of the coarse screen plate 4 and improve 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 a swing rod 122, and the bottom of the swing rod 122 is fixedly installed with a dust cover 12 3. A limiting groove 124 is provided on the swing rod 122. A vacuum cleaner 125 is fixedly installed on the top of the bracket 7. A hose 126 is fixedly installed on the input end of the vacuum cleaner 125. One end of the hose 126 away from the vacuum cleaner 125 is fixedly installed on the top of the dust hood 123. The interior of the dust hood 123 is connected to the input end of the vacuum cleaner 125 through the hose 126. The bottom of the dust hood 123 is open. When the vacuum cleaner 125 is started, the hose 126 and the dust hood 123 are connected. 23 can absorb the dust generated during the screening process of plastic particles to prevent the 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, and the outer wall of the L rod 1213 fits 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 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 with a gear 1211, and the inner wall of the bracket 7 is fixedly installed with a rack 1214, which meshes with the gear 1211. When the gear 1211 reciprocates, the gear 1211 can be reciprocated on the outer wall of the support shaft 1210 by cooperating with the rack 1214 meshed therewith. A limiting rod 1212 is fixedly installed on the outer wall of the gear 1211, and the outer wall of the limiting rod 1212 is attached to 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 can reciprocate at the bottom of the slider 121. The reciprocating rotation of the rocker arm 122 can expand the dust suction angle of the dust hood 123, thereby further increasing the dust suction range of the dust hood 123, thereby further improving the dust removal effect.

[0040] When the present embodiment is working, the slide plate 104 will push and pull the connecting rod 116 back and forth while sliding up and down the side wall of the screen bucket 2, 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 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 will push and pull 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 rotating shaft 111 rotates back and forth while driving the distributing plate 112 to swing back and forth above the coarse screen plate 4. Through the reciprocating swing of the coarse screen plate 4, the The movement can make the plastic particles inside 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 can cooperate with the support rod 1110 to drive the leather wheel 1111 to reciprocate on the upper surface of the coarse screen plate 4 during the reciprocating rotation. The reciprocating rolling of the leather wheel 1111 will drive the eccentric rod 1112 to make a circular motion around the support rod 1110, and the eccentric rod 1112 will fit the inner wall of the through groove 119. The L plate 118 is reciprocated and pushed and pulled back and forth, so that the L plate 118 drives 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 up and down 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 be The plastic particles are quantitatively discharged onto the coarse screen plate 4 so that they can fall evenly on the coarse screen plate 4, which is beneficial to give full play to the screening performance of the coarse screen plate 4 and improve the screening effect of the plastic particles. The L plate 118 reciprocates up and down, and cooperates with the pressure rod 1116 and the spinning groove 1114 to drive the drive shaft 1113 to reciprocate on the inner wall of the dividing plate 112. The reciprocating rotation of the drive shaft 1113 will drive the lever 1115 on the top of the dividing plate 112 to swing back and forth. The reciprocating swing of the lever 1115 can move the plastic particles inside the dividing plate 112 to avoid the plastic particles being blocked inside the dividing plate 112.

[0041] Start the vacuum cleaner 125, and at the same time cooperate with the hose 126 and the dust hood 123 to absorb the dust generated during the plastic particle screening process to prevent the dust from splashing everywhere and affecting the surrounding air quality. During the process of the rotating shaft 111 driving the material distribution plate 112 to swing back and forth, the L rod 1213 on the outer wall of the material distribution 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 swing rod 122 can drive the dust hood 123 to move back and forth above the coarse screen plate 4. The reciprocating movement of the dust hood 123 can expand its dust suction range, so that the dust 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 meshing with it can make the gear 1211 reciprocate on the outer wall of the support shaft 1210. While 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 swing rod 122 back and forth, so that the swing rod 122 reciprocates at the bottom of the slider 121. While the swing rod 122 reciprocates, 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, but it is obvious to a person skilled in the art that some modifications or improvements can be made to 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 feed pipe (9) is fixedly mounted on the bottom of the hopper (8), a bulking mechanism (10) for preventing plastic from sticking is arranged on the sieve bucket (2), a material leveling mechanism (11) for preventing plastic from piling up is arranged inside the sieve bucket (2), and a dust removal mechanism (12) for preventing dust from splashing is arranged inside the sieve bucket (2); The bulking mechanism (10) comprises 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 disc (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 with a stirring shaft (105), and the stirring 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 installed on the inner wall of the sieve bucket (2), and a rotating rod (107) is fixedly installed 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 installed with a wheel disc (108), and a cam groove (109) is provided on the wheel disc (108). A connecting rod (1010) is hinged on the side wall of the disk (108), and one end of the connecting rod (1010) away from the wheel disk (108) is hinged on 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). A ball head rod (1011) is fixedly installed on 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 feed 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 supporting rod (1110), a leather wheel (1111), an eccentric rod (1112), a driving 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 a material distribution plate (112) is fixedly installed on the other end of the rotating shaft (111). A hollow rod (113) is fixedly installed on the outer wall of the rotating shaft (111), and a driving shaft (1113) is rotatably connected to the inner wall of the material distribution plate (112). A spinning groove (1114) is provided on the driving shaft (1113), and a shifting rod (1115) is fixedly installed on the top of the driving shaft (1113).

3. A debris screening mechanism for plastic granule production according to claim 1, 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 on the side wall of the guide rod (114), and one end of the connecting rod (116) away from the guide rod (114) is hinged on the outer wall of the slide plate (104).

4. A debris screening mechanism for plastic granule production according to claim 2, 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), and one 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 2, 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), and 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 on the inner wall of the through groove (119).

7. A debris screening mechanism for plastic granule production according to claim 1, 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 rod (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 a swing rod (122); the swing rod (122) is 2) is fixedly mounted on the bottom of the housing, a limiting groove (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), one end of the hose (126) away from the dust collector (125) is fixedly mounted on the top of the dust collector (123), the interior of the dust collector (123) is connected to the input end of the dust collector (125) through the hose (126), and the bottom of the dust collector (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 with 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 fitted to the inner wall of the limiting groove (124).

9. A debris screening mechanism for plastic granule production according to claim 4, 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 on the inner wall of the transverse groove (128).

10. A debris screening mechanism for plastic granule production according to claim 1, characterized in that: A rack (1214) is fixedly mounted on the inner wall of the bracket (7), the rack (1214) meshes with the gear (1211), the rotating rod (107) is rotatably connected to the through-hole of the sieve bucket (2), and the interior of the hopper (8) is communicated with the interior of the discharge pipe (9).

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