CN112847919B

CN112847919B - Mixing device for plastic product production

Info

Publication number: CN112847919B
Application number: CN202110157517.1A
Authority: CN
Inventors: 胡丽萍
Original assignee: Shantou Jiaye Toys Co ltd
Current assignee: Shantou Jiaye Toys Co ltd
Priority date: 2021-02-04
Filing date: 2021-02-04
Publication date: 2022-12-27
Anticipated expiration: 2041-02-04
Also published as: CN112847919A

Abstract

The invention discloses a mixing device for plastic product production, which comprises a main body, a motor, a feed inlet, a mixing cavity, a crushing roller, a fixing frame, a discharge opening, a discharge mechanism, a screening cavity, a collecting cylinder, a screening mechanism, a discharge opening, a feed inlet, a screening plate, a screening hole, a first vibrating block, a first vibrating rod, a material guide plate, a rotating block, a toothed ring, a second motor, a first gear and a through-blocking assembly, wherein the main body is provided with a feeding hole and a discharge hole; according to the invention, the crushed plastic particles enter the screening cavity at a constant speed through the discharging mechanism, so that the stability of material mixing and screening is improved; the screening plate and the screening holes are arranged to screen the crushed plastic powder, so that the plastic powder with the qualified crushing mesh number is collected, the plastic powder which does not reach the standard is removed, and the quality of the plastic product is improved; can carry out automatic clearance to the screening hole through leading stifled subassembly, improve the screening effect, further improve the quality of compounding powder.

Description

Mixing device for plastic product production

Technical Field

The invention belongs to the technical field of plastic product production, and particularly relates to a mixing device for plastic product production.

Background

The plastic products are the general name of articles for daily use, industry and the like which are processed by adopting plastics as main raw materials; the plastic has the functions of light weight, stable chemical performance, excellent insulativity, noise elimination, shock absorption and the like, and is widely applied to a plurality of fields; before the plastic product is produced and processed, the used plastic particles need to be screened and mixed, and large-particle plastics are screened and removed or crushed, so that the phenomenon that the plastic particles used in the plastic product to be processed are too large is avoided, and the quality of the finished product of the plastic product in the subsequent production and processing is ensured; in the existing screening and crushing device, the screening and crushing effects are not ideal, the screening and crushing efficiency is low, and the production progress and the production quality are seriously influenced.

Disclosure of Invention

The invention provides a mixing device for plastic product production, which is used for overcoming the defects of the prior art and improving the screening effect.

In order to achieve the purpose, the invention adopts the following technical scheme: a mixing device for plastic product production comprises a main body, a motor arranged on the main body, a feed inlet arranged on the main body, a mixing chamber arranged in the main body, a crushing roller arranged in the mixing chamber, a fixed frame arranged at the bottom of the mixing chamber, a discharge port arranged on the fixed frame, a discharge mechanism arranged on the discharge port, a screening chamber arranged in the main body, a collecting barrel arranged in the screening chamber, a screening mechanism arranged on the collecting barrel, and a discharge port arranged at the bottom of the collecting barrel; the screening mechanism comprises a material inlet cylinder arranged at the bottom of the discharge opening, a material inlet arranged on the material inlet cylinder, a screening plate arranged on the collecting cylinder, a screening hole arranged on the screening plate, a first vibration block arranged on the inner wall of the collecting cylinder, a first vibration rod arranged on the screening plate, a material guide plate arranged on the surface of the screening plate, a rotating block arranged on the material inlet cylinder, a toothed ring arranged on the upper surface of the rotating block, a second motor arranged on the fixed frame, a first gear arranged on the second motor and a plugging component arranged at the bottom of the fixed frame; the cross section of the feeding barrel is circular and is rotatably embedded at the bottom of the discharge opening; the feeding port is formed in the surface of the feeding barrel and is directly opposite to the upper surface of the screening plate; the longitudinal section of the screening plate is triangular, one end of the screening plate is arranged on the lower end surface of the charging barrel, and the other end of the screening plate is rotatably embedded on the collecting barrel; the screening holes are distributed along the surface of the screening plate in a staggered manner; the first vibration blocks are uniformly arranged on the inner wall of the collecting cylinder along the circumferential direction of the collecting cylinder; the first vibration rods are uniformly arranged on the side edge of the screening plate along the circumferential direction of the screening plate and can abut against the first vibration blocks; the guide plates are uniformly arranged on the surface of the screening plate along the circumferential direction of the screening plate, and the longitudinal section of the screening plate is rectangular; the material guide plate can be overturned and is embedded with the screening plate; the rotating block is fixedly arranged on the side wall of the charging barrel and is rotatably embedded in the lower end wall of the fixed frame; the gear ring is arranged on the surface of the rotating block; the first gear is arranged on the second motor and can be meshed with the gear ring.

When the materials begin to be mixed, plastic particles are poured into a feeding port; starting a motor, and carrying out crushing and mixing treatment on the plastic particles in the mixing cavity by using a crushing roller; after the crushing is finished, starting a second motor to drive the discharging mechanism to start; the ground plastic powder falls onto the screening plate, the first gear drives the gear ring to start rotating along with the operation of the second motor, then the rotating block drives the charging barrel to start rotating, and meanwhile, the screening plate starts rotating; the first vibration block is abutted against the first vibration rod to drive the screening plate to start to vibrate; at the moment, the plastic powder generates vibration and begins to fall into the collecting cylinder from the screening holes; the unqualified plastic powder falls into the main body for collection; meanwhile, as the rotating block rotates, the plugging component is started, and intermittently plugging the screening holes; the crushed material powder can uniformly fall onto the screening plate through the arrangement of the discharging mechanism, so that the screening effect of the plastic powder is improved; the plastic mixing effect is further improved, and the quality of the plastic product is improved; the qualified plastic powder can be collected through the collection cylinder, and is isolated from the unqualified plastic powder, so that the quality of a finished product is ensured; the plastic powder can uniformly fall on the screening plate through the arrangement of the material inlet barrel and the material inlet, so that the screening effect is improved, and the quality of plastic products is further improved; the area expansion during plastic powder screening can be realized through the arrangement of the screening plate, the plastic powder is conveyed while screening, and the screening efficiency is improved; the screening effect of the plastic powder is further improved; the plastic powder can be screened through the arrangement of the screening holes, unqualified plastic powder is separated, and the quality of the plastic powder is ensured; the first vibration block and the first vibration rod are arranged to realize vibration of the screening plate during rotation, so that the screening effect is improved, and the quality of the plastic powder is further ensured; the plastic powder can be fully contacted with the screening holes through the arrangement of the material guide plate, so that the screening effect is improved, and the mixing effect is better; through the arrangement of the blocking component, the screening holes are cleaned after screening for a period of time, the screening smoothness is improved, and the screening effect is further improved.

The blocking component comprises a spiral groove arranged at the bottom of the rotating block, a connecting rod arranged at the bottom of the fixed frame, a blocking ball arranged on the connecting rod, a driving block arranged at the bottom of the fixed frame, a moving block arranged on the driving block, a moving spring arranged on the moving block, an upper moving groove arranged on the driving block, a lower moving groove arranged on the driving block, inclined grooves arranged at two ends of the upper moving groove and the lower moving groove, a plurality of speed reducing plates arranged on the lower moving groove, a speed reducing spring arranged on the speed reducing plates, a moving block mutually-embedded roller arranged on the moving block, a mutually-embedded spring arranged on the mutually-embedded roller, a driving groove arranged on the connecting rod and a driving roller arranged on the moving block; the cross section of the spiral groove is spiral and is arranged at the bottom of the rotating block; the cross section of the connecting rod is V-shaped, one end of the connecting rod is rotatably embedded at the bottom of the fixed frame, and the other end of the connecting rod is rotatably embedded on the inner wall of the main body; the connecting rod can be propped against the surface of the screening plate; the plurality of through blocking balls are uniformly arranged on the lower end surface of the connecting rod along the length direction of the connecting rod, and the through blocking balls can be abutted against the screening holes; the cross section of the driving block is rectangular and is fixedly arranged at the bottom of the fixed frame; the moving block is movably embedded on the side wall of the driving block and can be embedded with the spiral groove; the movable spring is connected with the movable block and the driving block; the cross section of the upper moving groove is rectangular and is arranged on the surface of the driving block; the cross section of the lower moving groove is rectangular, is arranged on the driving block and is positioned below the upper moving groove; the two inclined grooves are respectively arranged at two ends of the upper moving groove and communicated with the upper moving groove and the lower moving groove; the longitudinal section of the chute is prismatic; a plurality of speed reducing plates are uniformly arranged in the lower moving groove along the length direction of the lower moving groove, and one end of each speed reducing plate is rotatably embedded in the bottom wall of the lower moving groove; the speed reducing spring is connected with the speed reducing plate and the bottom of the lower moving groove; the embedding rollers can be vertically moved and embedded in the moving block and can be respectively embedded with the upper moving groove and the lower moving groove; the embedded springs are connected with the embedded rollers and the moving block; the driving groove is formed in the surface of the connecting rod; the driving roller is arranged on the moving block and can be in butt joint with the driving groove.

When the screening is started, the rotating block rotates; the moving block starts to move on the driving block along with the spiral groove, and the embedded roller moves in the upper moving groove at the moment; then the driving roller presses the driving groove to move; at the moment, the driving connecting rod starts to turn over, a further through blocking ball is abutted against the surface of the screening plate, and the screening hole is cleaned; then the embedded rollers enter the lower moving groove through the inclined grooves, and the moving block is separated from the spiral groove; under the action of the movable spring, the movable block begins to reset; further, the embedding roller is embedded with the speed reducing plate, so that the speed is reduced under the elastic force of the speed reducing spring; so far, the connecting rod is separated from the screening plate; the spiral groove and the moving block are arranged, so that the rotating block rotates to drive the moving block to move transversely, the linkage of the device is improved, the contact of other external force is avoided, and the structure is more compact; the arrangement of the connecting rod realizes that the through blocking ball is driven to automatically abut against the screening hole; meanwhile, due to the special structure of the connecting rod, the blockage dredging process is more stable, and the screening effect is improved; the arrangement of the through blocking balls realizes the cleaning of the screening holes according to the elasticity of the through blocking balls, avoids the blockage of the screening holes and improves the screening effect; the quality of plastic powder mixing is further improved; the arrangement of the upper moving groove and the lower moving groove realizes that the movable block is meshed with the spiral groove to realize the turnover of the connecting rod when the blockage is started, so that the stability and the automation of the blockage passing are improved; when the blockage is stopped, the moving block is separated from the spiral groove, so that the blockage state is intermittent blockage, and the screening efficiency is improved; the arrangement of the inclined grooves realizes that the embedded rollers can be stably exchanged between the upper moving groove and the lower moving groove, improves the stability of blockage removal, and further improves the screening efficiency; the arrangement of the accelerating plate and the decelerating spring can enable the embedded rollers to slowly move when the embedded rollers reset, so that the plugging balls can be driven to be in contact with the screening holes for a long time, and the plugging effect is improved; the screening effect is further improved, so that the quality of the plastic powder is better; the arrangement of the embedded rollers and the embedded springs realizes that the moving block moves stably between the upper moving groove and the lower moving groove, prevents the connecting rod from deforming to generate dislocation, and improves the stability of the through plug; the connecting rod is more stable in deformation due to the arrangement of the driving roller and the driving groove, the blockage passing stability is improved, and the screening effect is further improved.

The discharging mechanism comprises a discharging frame arranged on the fixed frame, a discharging plate arranged on the discharging frame, a discharging spring arranged on the discharging plate, a second vibrating rod arranged on the discharging plate, a second vibrating block arranged on the inner wall of the fixed frame, a second gear ring arranged at the bottom of the discharging frame, a second gear arranged on the second motor, a plugging pipe arranged in the discharging port, a through hole arranged on the plugging pipe, a slope arranged at the top end of the plugging pipe, a plugging spring arranged on the plugging pipe and a driving assembly arranged in the fixed frame; the longitudinal section of the unloading frame is U-shaped and can be rotatably embedded on the fixed frame; the longitudinal section of the discharging plate is V-shaped, one end of the discharging plate can be vertically moved and embedded on the side wall of the discharging frame, and the other end of the discharging plate can be embedded on the bottom wall of the discharging frame in a turnover manner; the discharging spring is connected with the inner wall of the discharging frame and the side wall of the discharging plate; a plurality of second vibration rods are uniformly arranged along the circumferential direction of the stripper plate; the cross section of the second vibration block is semicircular and is uniformly arranged on the inner wall of the fixed frame along the circumferential direction of the fixed frame; the second vibration block can be abutted against the second vibration rod; the second gear ring is arranged at the bottom of the unloading frame; the second gear is arranged on the second motor and can be meshed with the second gear ring; the blocking pipe can be embedded on the discharge port in a vertically moving manner; the plurality of through openings are arranged in the blocking pipe; the longitudinal section of the slope is triangular and is arranged on the upper end surface of the blocking pipe; the blocking spring is connected with the blocking pipe and the inner wall of the discharge opening.

When the unloading is started, the second motor is started, and the second gear drives the second gear ring to rotate; then the unloading frame starts to rotate, and the second vibration rod and the second vibration block start to abut against each other; the further stripper plate starts to vibrate; when the second motor is started, the driving assembly starts to move upwards to enable the blocking pipe to move upwards; the opening is arranged above the discharging plate; at the moment, the plastic powder enters the material inlet from the through opening; the discharge plate is arranged to enable the crushed plastic powder to be concentrated at the discharge opening, so that the crushing effect is improved, the completeness of discharge is improved, and incomplete screening caused by uneven discharge of the plastic powder is prevented; the second vibration rod and the second vibration block are arranged, so that the discharging plate can vibrate during discharging, and the discharging integrity is further improved; meanwhile, the discharging plate can not drive the discharging frame to rotate during crushing, so that the crushing stability is improved; the arrangement of the blocking pipe realizes that the through opening can be exposed above the discharging plate during discharging, so that the discharging stability is improved on one hand, and the crushing stability is improved on the other hand; the plastic powder can completely fall from the upper end of the blocking pipe when the plastic powder is discharged through the slope, so that the discharging integrity is improved, and the crushing and mixing efficiency is realized.

The driving assembly comprises an air pressure cavity arranged in the discharge port, an air pressure plate arranged on the blocking pipe, a ratchet ring arranged on the inner wall of the air pressure cavity, a speed reducing ring arranged on the air pressure plate, an air pressure chamber arranged in the fixed frame, an air vent arranged on the air pressure chamber, an inflating plate arranged on the air pressure chamber, an inflating spring arranged on the inflating plate and a cam arranged on the second motor; the air pressure cavity is arranged in the discharge port, and the cross section of the air pressure cavity is circular; the air pressure plate is arranged on the plugging pipe and can be embedded in the air pressure cavity in an up-and-down moving manner; the ratchet rings are uniformly arranged on the inner wall of the air pressure cavity along the height direction of the air pressure cavity; the longitudinal section of the ratchet ring is crescent; the speed reducing ring is arranged on the side edge of the air pressure plate and can be abutted against the ratchet ring; the air pressure chamber is arranged on the fixing frame; the vent hole is communicated with the air pressure chamber and the air pressure cavity; the longitudinal section of the inflating plate is arc-shaped and movably embedded on the air pressure chamber; the inflating spring is connected with the inflating plate and the bottom of the air pressure chamber; the cam is arranged on the second motor and can abut against the gas pumping plate; the cam is elliptical in cross-section.

When the second motor is started, the cam is driven to rotate and then abuts against the inflating plate; the air pressure formed in the air pressure chamber is communicated with the air pressure cavity; thereby driving the air pressure plate to move upwards, and at the moment, the blocking pipe moves upwards; when the cam is far away from the inflating plate, the air pressure plate resets; then the deceleration ring is pressed against the surface of the ratchet ring, so that the air pressure plate moves downwards slowly; so that the blocking pipe moves up and down during discharging; the slow resetting of the blocking pipe is realized through the arrangement of the ratchet ring and the speed reducing ring, so that the plastic powder can fully enter the material inlet; the stability during unloading is improved, and the plastic powder is prevented from being blocked; the change of the air pressure in the air pressure cavity is realized on one hand through the arrangement of the air inflating plate, so that the air pressure plate is driven to move; the linkage of unloading is improved; on the other hand, after the unloading is stopped, the cam can abut against the surface of the inflating plate, so that the cam is separated from the inflating plate, and the resetting of the plugging pipe is ensured; the unloading stability is improved, and the screening effect is further improved; thereby the quality of the plastic powder is better.

In conclusion, the invention has the following advantages: the automatic plastic powder mixing device is simple in structure, can realize automatic screening treatment on crushed plastic particles, improves the plastic powder mixing effect, and further improves the quality of plastic products; the crushed plastic particles enter the screening cavity at a constant speed through the discharging mechanism, so that the stability of material mixing and screening is improved; the screening plate and the screening holes are arranged to screen the crushed plastic powder, so that the plastic powder with the qualified crushing mesh number is collected, the plastic powder which does not reach the standard is removed, and the quality of the plastic product is improved; can carry out automatic clearance to the screening hole through leading stifled subassembly, improve the screening effect, further improve the quality of compounding powder.

Drawings

FIG. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a front view of the present invention.

Fig. 3 isbase:Sub>A cross-sectional perspective view alongbase:Sub>A-base:Sub>A of fig. 2 of the present invention.

Fig. 4 isbase:Sub>A cross-sectional view alongbase:Sub>A-base:Sub>A of fig. 2 of the present invention.

Fig. 5 is a cross-sectional perspective view of fig. 2 taken along B-B of the present invention.

FIG. 6 is a partial view taken at A of FIG. 4 in accordance with the present invention.

Fig. 7 is a partial view of the invention at B in fig. 4.

Fig. 8 is a partial view of the invention at C in fig. 3.

Fig. 9 is a partial view of fig. 3 taken at D in accordance with the present invention.

Fig. 10 is a first exploded view of the plugging component of the present invention.

Fig. 11 is an exploded view of the second plugging component of the present invention.

Fig. 12 is a schematic structural diagram of a driving block of the present invention.

Fig. 13 is a schematic structural view of the connecting rod of the present invention.

Detailed Description

As shown in fig. 1-13, a mixing device for plastic product production comprises a main body 1, a motor 2, a feed inlet 3, a mixing chamber 4, a crushing roller 41, a fixing frame 42, a discharge port 43, a discharge mechanism 5, a screening chamber 6, a collecting cylinder 61, a screening mechanism 7, and a discharge port 62; the screening mechanism 7 comprises a material inlet barrel 71, a material inlet 72, a screening plate 73, a screening hole 74, a first vibration block 75, a first vibration rod 76, a material guide plate 77, a rotating block 78, a toothed ring 79, a second motor 790, a first gear 791 and a through blocking assembly 8; the motor 2 is arranged on the main body 1 and is directly purchased from the market; the feed port 3 is arranged on the upper end face of the main body 1 and communicated with an external mixing cavity 4; the mixing cavity 4 is arranged in the main body 1; the crushing roller 41 is arranged in the mixing cavity 4 and is connected with the motor 2; the fixing frame 42 is fixedly arranged in the main body 1; the discharge opening 43 is arranged on the fixed frame 42 and is communicated with the mixing cavity 4 and the screening cavity 6; the discharging mechanism 5 is arranged in the discharging opening 43; the screening cavity 6 is arranged in the main body 1 and is positioned below the fixed frame 42; the collecting cylinder 61 is arranged in the main body 1, and the cross section of the collecting cylinder 61 is directly smaller than the diameter of the cross section of the main body 1; the discharge port 62 is arranged at the bottom of the collecting cylinder 61 and is sealed by an end cover; the cross section of the charging barrel 71 is circular and is rotatably embedded at the bottom of the discharging opening 43; the feeding port 72 is arranged on the surface of the feeding barrel 71, and the feeding port 72 is directly opposite to the upper surface of the screening plate 73; the longitudinal section of the screening plate 73 is triangular, one end of the screening plate is arranged on the lower end surface of the charging barrel 71, and the other end of the screening plate is rotatably embedded on the collecting barrel 61; a plurality of screening holes 74 are arranged and distributed along the surface of the screening plate 73 in a staggered manner; a plurality of first vibration blocks 75 are arranged and uniformly arranged on the inner wall of the collecting cylinder 61 along the circumferential direction of the collecting cylinder 61; the first vibration rods 76 are provided with a plurality of vibration rods, and are uniformly arranged on the side edge of the screening plate 73 along the circumferential direction of the screening plate 73, and the first vibration rods 76 can be abutted against the first vibration blocks 75; the material guide plates 77 are uniformly arranged on the surface of the screening plate 73 along the circumferential direction of the screening plate 73, and the longitudinal section of the screening plate 73 is rectangular; the material guide plate 77 can be overturned and embedded with the screening plate 73, and is connected with the screening plate 73 by adopting a torsion spring; the rotating block 78 is fixedly arranged on the side wall of the charging barrel 71 and is rotatably embedded in the lower end wall of the fixed frame 42; the gear ring 79 is arranged on the surface of the rotating block 78; the second motor 790 is arranged in the fixed frame 42 and is directly purchased from the market; the first gear 791 is provided on the second motor 790 to be engaged with the ring gear 79.

As shown in fig. 10 to 13, the blocking member 8 includes a spiral groove 81, a connecting rod 82, a blocking ball 83, a driving block 84, a moving block 85, a moving spring 86, an upper moving groove 87, a lower moving groove 88, a chute 89, a speed reducing plate 890, a speed reducing spring 891, an engaging roller 892, an engaging spring 893, a driving groove 894, and a driving roller 895; the cross section of the spiral groove 81 is spiral and is arranged at the bottom of the rotating block 78; the cross section of the connecting rod 82 is V-shaped, one end of the connecting rod is rotatably embedded at the bottom of the fixed frame 42, and the other end of the connecting rod is rotatably embedded on the inner wall of the main body 1; the connecting rod 82 can be abutted against the surface of the sieving plate 73; a plurality of through blocking balls 83 are uniformly arranged on the lower end surface of the connecting rod 82 along the length direction of the connecting rod 82, and the through blocking balls 83 can abut against the screening holes 74; the cross section of the driving block 84 is rectangular and is fixedly arranged at the bottom of the fixed frame 42; the moving block 85 is movably embedded on the side wall of the driving block 84, and the moving block 85 can be embedded with the spiral groove 81; the moving spring 86 is connected with the moving block 85 and the driving block 84; the cross section of the upper moving groove 87 is rectangular and is arranged on the surface of the driving block 84; the cross section of the lower moving groove 88 is rectangular, and the lower moving groove 88 is arranged on the driving block 84 and is positioned below the upper moving groove 87; two inclined grooves 89 are arranged and respectively arranged at two ends of the upper moving groove 87 and communicated with the upper moving groove 87 and the lower moving groove; the chute 89 has a prismatic longitudinal section; a plurality of speed reducing plates 890 are uniformly arranged in the lower moving groove 88 along the length direction of the lower moving groove 88, and one end of each speed reducing plate 890 is rotatably embedded in the bottom wall of the lower moving groove 88; the deceleration spring 891 connects the deceleration plate 890 and the bottom of the lower moving groove 88; the embedding roller 892 can be vertically embedded in the moving block 85 and can be respectively embedded with the upper moving groove 87 and the lower moving groove 88; the embedded spring 893 is connected with the embedded roller 892 and the moving block 85; the driving groove 894 is opened on the surface of the connecting rod 82; the driving roller 895 is provided on the moving block 85 and can be abutted against the driving groove 894.

As shown in fig. 3 and 7, the discharging mechanism 5 includes a discharging frame 51, a discharging plate 52, a discharging spring 53, a second vibration rod 54, a second vibration block 55, a second ring gear 56, a second gear 57, a blocking tube 58, a through opening 59, a slope 590, a blocking spring 591, and a driving assembly 9; the longitudinal section of the unloading frame 51 is U-shaped and can be rotatably embedded on the fixed frame 42; the longitudinal section of the discharging plate 53 is V-shaped, one end of the discharging plate can be vertically moved and embedded on the side wall of the discharging frame 51, and the other end of the discharging plate can be embedded on the bottom wall of the discharging frame 51 in a turnover manner; the discharging spring 53 is connected with the inner wall of the discharging frame 51 and the side wall of the discharging plate 52; a plurality of second vibration rods 54 are uniformly arranged along the circumferential direction of the discharging plate 52; the second vibration blocks 55 have a semicircular cross section and are uniformly arranged on the inner wall of the fixed frame 42 along the circumferential direction of the fixed frame 42; the second vibration block 55 can be abutted against the second vibration rod 54; the second toothed ring 56 is arranged at the bottom of the unloading frame 51; the second gear 57 is disposed on the second motor 790 and can be engaged with the second ring gear 56; the blocking pipe 58 can be embedded on the discharge opening 43 in a way of moving up and down; a plurality of through openings 59 are formed in the blocking pipe 58; the longitudinal section of the slope 590 is triangular and is arranged on the upper end face of the plugging pipe 58; the plugging spring 591 connects the plugging tube 58 with the inner wall of the throat 43.

As shown in fig. 9, the driving assembly 9 includes a pneumatic chamber 91, a pneumatic plate 92, a ratchet ring 93, a reduction ring 94, a pneumatic chamber 95, a vent hole 96, an inflating plate 97, an inflating spring 98, and a cam 99; the air pressure cavity 91 is arranged in the discharge opening 43, and the cross section of the air pressure cavity is circular; the air pressure plate 92 is arranged on the blocking pipe 58 and embedded in the air pressure cavity 91 in a way of moving up and down; the ratchet rings 93 are provided with a plurality of ratchet rings and are uniformly arranged on the inner wall of the air pressure cavity 91 along the height direction of the air pressure cavity 91; the longitudinal section of the ratchet ring 93 is crescent; the speed reducing ring 94 is arranged on the side edge of the air pressure plate 92 and can be abutted against the ratchet ring 93; the air pressure chamber 95 is arranged on the fixing frame 42; the vent hole 96 is communicated with the air pressure chamber 95 and the air pressure cavity 91; the longitudinal section of the inflating plate 97 is arc-shaped and movably embedded on the air pressure chamber 95; the inflating spring 98 is connected with the inflating plate 97 and the bottom of the air pressure chamber 95; the cam 99 is arranged on the second motor 790 and can abut against the inflating plate 97; the cam 99 is elliptical in cross-section.

The specific implementation process is as follows: when the materials begin to be mixed, plastic particles are poured into the feeding hole 3; starting the motor 2, and carrying out crushing and mixing treatment on the plastic particles in the mixing cavity 4 by the crushing roller 41; after the crushing is finished, the second motor 790 is started, and the second gear 57 drives the second gear ring 56 to start rotating; then the unloading frame 51 starts to rotate, and the second vibration rod 54 and the second vibration block 55 start to abut against each other; the further stripper plate 52 starts to shake; when the second motor 790 is started, the cam 99 is driven to rotate and then abuts against the inflating plate 97; further, the air pressure formed in the air pressure chamber 95 is led into the air pressure chamber 91; thereby driving the pneumatic plate 92 to move upward, at which time the choke tube 58 moves upward; when the cam 99 is away from the pumping plate 97, the pneumatic plate 92 is reset; then the deceleration ring 94 abuts against the surface of the ratchet ring 93, so that the pneumatic plate 92 moves slowly downward; so far, the blocking pipe 58 moves up and down during discharging; the crushed plastic powder falls onto the sieving plate 73, and with the operation of the second motor 790, the first gear 791 drives the toothed ring 79 to start rotating, then the rotating block 78 drives the charging barrel 71 to start rotating, and simultaneously the sieving plate 73 starts rotating; the further first vibration block 75 abuts against the first vibration rod 76 to drive the screening plate 73 to start vibration; at this time, the plastic powder generates vibration and begins to fall into the collecting cylinder 61 from the sieving holes 74; unqualified plastic powder falls into the main body 1 for collection; at the beginning of the screening, with the rotation of the rotary block 78; the moving block 85 starts moving on the driving block 84 along with the spiral groove 81, and at this time, the phase-fitting roller 892 moves in the upper moving groove 87; then the driving roller 895 presses the driving groove 894 to move; at the moment, the driving connecting rod 82 starts to turn over, and the further blocking passing ball 83 abuts against the surface of the screening plate 73 to start cleaning the screening holes 74; then the embedding roller 892 enters the lower moving groove 88 through the inclined groove 89, at which time the moving block 85 is disengaged from the spiral groove 81; under the action of the moving spring 86, the moving block 85 starts to reset; the further embedding roller 892 is embedded with the speed reducing plate 890, so that the speed is reduced under the elastic force of the speed reducing spring 891; the connecting rod 82 is now separated from the sifting plate 73, so that the sifting openings 74 are cleaned.

While there have been shown and described what are at present considered the fundamental principles and essential features of the invention and its advantages, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing exemplary embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present specification describes embodiments, not every embodiment includes only a single embodiment, and such description is for clarity purposes only, and it is to be understood that all embodiments may be combined as appropriate by one of ordinary skill in the art to form other embodiments as will be apparent to those of skill in the art from the description herein.

Claims

1. A mixing device for plastic product production comprises a main body (1), a motor (2) arranged on the main body (1), a feeding hole (3) arranged on the main body (1), a mixing chamber (4) arranged in the main body (1), a crushing roller (41) arranged in the mixing chamber (4), a fixing frame (42) arranged at the bottom of the mixing chamber (4), a discharging opening (43) arranged on the fixing frame (42), a discharging mechanism (5) arranged on the discharging opening (43), a screening chamber (6) arranged in the main body (1), a collecting cylinder (61) arranged in the screening chamber (6), a screening mechanism (7) arranged on the collecting cylinder (61), and a discharging hole (62) arranged at the bottom of the collecting cylinder (61); the method is characterized in that: the screening mechanism (7) comprises a feeding barrel (71) arranged at the bottom of the discharge opening (43), a feeding opening (72) arranged on the feeding barrel (71), a screening plate (73) arranged on the collecting barrel (61), screening holes (74) arranged on the screening plate (73), a first vibrating block (75) arranged on the inner wall of the collecting barrel (61), a first vibrating rod (76) arranged on the screening plate (73), a material guide plate (77) arranged on the surface of the screening plate (73), a rotating block (78) arranged on the feeding barrel (71), a toothed ring (79) arranged on the upper surface of the rotating block (78), a second motor (790) arranged on the fixed frame (42), a first gear (791) arranged on the second motor (790) and a blocking through component (8) arranged at the bottom of the fixed frame (42); the cross section of the charging barrel (71) is circular and can be rotatably embedded at the bottom of the discharging opening (43); the feeding port (72) is formed in the surface of the feeding barrel (71), and the feeding port (72) is directly opposite to the upper surface of the screening plate (73); the longitudinal section of the screening plate (73) is triangular, one end of the screening plate is arranged on the lower end face of the charging barrel (71), and the other end of the screening plate is rotatably embedded in the collecting barrel (61); the screening holes (74) are arranged in a plurality and distributed along the surface of the screening plate (73) in a staggered manner; the first vibration blocks (75) are arranged in a plurality and are uniformly distributed on the inner wall of the collecting cylinder (61) along the circumferential direction of the collecting cylinder (61); the first vibration rods (76) are provided with a plurality of vibration rods, the vibration rods are uniformly arranged on the side edge of the screening plate (73) along the circumferential direction of the screening plate (73), and the first vibration rods (76) can be abutted against the first vibration blocks (75); the material guide plates (77) are uniformly arranged on the surface of the screening plate (73) along the circumferential direction of the screening plate (73), and the longitudinal section of the screening plate (73) is rectangular; the material guide plate (77) can be overturned and embedded with the screening plate (73); the rotating block (78) is fixedly arranged on the side wall of the charging barrel (71) and is rotatably embedded in the lower end wall of the fixed frame (42); the gear ring (79) is arranged on the surface of the rotating block (78); the first gear (791) is arranged on the second motor (790) and can be meshed with the gear ring (79);

the through blocking assembly (8) comprises a spiral groove (81) arranged at the bottom of the rotating block (78), a connecting rod (82) arranged at the bottom of the fixing frame (42), a through blocking ball (83) arranged on the connecting rod (82), a driving block (84) arranged at the bottom of the fixing frame (42), a moving block (85) arranged on the driving block (84), a moving spring (86) arranged on the moving block (85), an upper moving groove (87) arranged on the driving block (84), a lower moving groove (88) arranged on the driving block (84), inclined grooves (89) arranged at two ends of the upper moving groove (87) and the lower moving groove (88), a plurality of speed reducing plates (890) arranged on the lower moving groove (88), a speed reducing spring (891) arranged on the speed reducing plates (890), a phase embedding roller (892) arranged on the moving block (85), a phase embedding spring (893) arranged on the phase embedding roller (892), a driving groove (894) arranged on the connecting rod (82), and a driving roller (895) arranged on the moving block (85); the cross section of the spiral groove (81) is spiral and is arranged at the bottom of the rotating block (78); the cross section of the connecting rod (82) is V-shaped, one end of the connecting rod is rotatably embedded at the bottom of the fixed frame (42), and the other end of the connecting rod is rotatably embedded on the inner wall of the main body (1); the connecting rod (82) can be abutted against the surface of the screening plate (73); a plurality of through blocking balls (83) are uniformly arranged on the lower end face of the connecting rod (82) along the length direction of the connecting rod (82), and the through blocking balls (83) can abut against the screening holes (74); the cross section of the driving block (84) is rectangular and is fixedly arranged at the bottom of the fixed frame (42); the moving block (85) is movably embedded on the side wall of the driving block (84), and the moving block (85) can be embedded with the spiral groove (81); the moving spring (86) is connected with the moving block (85) and the driving block (84); the cross section of the upper moving groove (87) is rectangular and is arranged on the surface of the driving block (84); the cross section of the lower moving groove (88) is rectangular, and the lower moving groove is arranged on the driving block (84) and is positioned below the upper moving groove (87); the two inclined grooves (89) are respectively arranged at two ends of the upper moving groove (87) and communicated with the upper moving groove (87) and the lower moving groove; the longitudinal section of the chute (89) is prismatic; a plurality of speed reducing plates (890) are uniformly arranged in the lower moving groove (88) along the length direction of the lower moving groove (88), and one end of each speed reducing plate (890) is rotatably embedded in the bottom wall of the lower moving groove (88); the speed reducing spring (891) is connected with the speed reducing plate (890) and the bottom of the lower moving groove (88); the embedding roller (892) can be embedded in the moving block (85) in a vertically movable manner and can be respectively embedded in the upper moving groove (87) and the lower moving groove (88); the embedded spring (893) is connected with the embedded roller (892) and the moving block (85); the driving groove (894) is arranged on the surface of the connecting rod (82); the driving roller (895) is arranged on the moving block (85) and can be butted with the driving groove (894).

2. A mixing device for plastic product production as defined in claim 1, wherein: the discharging mechanism (5) comprises a discharging frame (51) arranged on the fixed frame (42), a discharging plate (52) arranged on the discharging frame (51), a discharging spring (53) arranged on the discharging plate (52), a second vibration rod (54) arranged on the discharging plate (52), a second vibration block (55) arranged on the inner wall of the fixed frame (42), a second gear ring (56) arranged at the bottom of the discharging frame (51), a second gear (57) arranged on the second motor (790), a plugging pipe (58) arranged in the discharging opening (43), a through hole (59) arranged on the plugging pipe (58), a slope (590) arranged at the top end of the plugging pipe (58), a plugging spring (591) arranged on the plugging pipe (58), and a driving assembly (9) arranged in the fixed frame (42); the longitudinal section of the unloading frame (51) is U-shaped and is rotatably embedded on the fixed frame (42); the longitudinal section of the discharging plate (52) is V-shaped, one end of the discharging plate can move up and down and is embedded in the side wall of the discharging frame (51), and the other end of the discharging plate can be embedded in the bottom wall of the discharging frame (51) in a turnover manner; the discharging spring (53) is connected with the inner wall of the discharging frame (51) and the side wall of the discharging plate (52); a plurality of second vibration rods (54) are uniformly arranged along the circumferential direction of the stripper plate (52); the cross section of the second vibration block (55) is semicircular and is uniformly arranged on the inner wall of the fixed frame (42) along the circumferential direction of the fixed frame (42); the second vibration block (55) can be abutted against the second vibration rod (54); the second gear ring (56) is arranged at the bottom of the unloading frame (51); the second gear (57) is arranged on the second motor (790) and can be meshed with a second gear ring (56); the blocking pipe (58) can be vertically moved and is embedded on the discharge opening (43); a plurality of through openings (59) are arranged and are opened in the blocking pipe (58); the longitudinal section of the slope (590) is triangular and is arranged on the upper end surface of the plugging pipe (58); the plugging spring (591) is connected with the plugging pipe (58) and the inner wall of the discharge opening (43).

3. A mixing device for the production of plastic products, as claimed in claim 2, characterized in that: the driving assembly (9) comprises an air pressure cavity (91) arranged in the discharge opening (43), an air pressure plate (92) arranged on the blocking pipe (58), a ratchet ring (93) arranged on the inner wall of the air pressure cavity (91), a speed reducing ring (94) arranged on the air pressure plate (92), an air pressure chamber (95) arranged in the fixing frame (42), a vent hole (96) arranged on the air pressure chamber (95), an inflating plate (97) arranged on the air pressure chamber (95), an inflating spring (98) arranged on the inflating plate (97), and a cam (99) arranged on the second motor (790); the air pressure cavity (91) is arranged in the discharge opening (43), and the cross section of the air pressure cavity is circular; the air pressure plate (92) is arranged on the blocking pipe (58) and embedded in the air pressure cavity (91) in a vertically movable manner; the ratchet rings (93) are arranged in plurality and are uniformly arranged on the inner wall of the air pressure cavity (91) along the height direction of the air pressure cavity (91); the longitudinal section of the ratchet ring (93) is crescent; the speed reducing ring (94) is arranged on the side edge of the air pressure plate (92) and can be abutted against the ratchet ring (93); the air pressure chamber (95) is arranged on the fixed frame (42); the vent hole (96) is communicated with the air pressure chamber (95) and the air pressure cavity (91); the longitudinal section of the inflating plate (97) is arc-shaped and movably embedded on the air pressure chamber (95); the inflating spring (98) is connected with the inflating plate (97) and the bottom of the air pressure chamber (95); the cam (99) is arranged on the second motor (790) and can be abutted against the inflating plate (97); the cam (99) is elliptical in cross-section.