Acrylic waste material recycling device

Abstract

The application discloses an acrylic waste material recycling device, which comprises a recycling device body and a feeding port arranged on the recycling device body, characterized in that the recycling device body is internally sequentially provided with a crushing assembly, a screening assembly and a driving assembly along the falling direction of the material. The crushing assembly is used for crushing the acrylic waste material falling from the feeding port; the screening assembly is arranged below the crushing assembly and is used for screening the crushed acrylic waste material to separate qualified particles from unqualified particles. Through the cooperation of the crushing assembly, the screening assembly and the driving assembly, an automatic closed-loop circulation of "crushing-screening-reflowing-re-crushing" is formed, the acrylic waste material can be crushed for multiple times, the problem that the traditional device is not completely crushed at one time and needs manual sorting and reprocessing is effectively solved, the crushing uniformity of the acrylic waste material is significantly improved, the final recycled waste material all meets the particle size requirement, the labor input is reduced, and the recycling efficiency is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of recycling devices, in particular to an acrylic processing scrap recycling device. BACKGROUND

[0002] In the process of acrylic product processing, a large amount of acrylic processing scrap will be generated. In order to realize the recycling of resources, it is usually necessary to recycle these scraps. At present, the commonly used acrylic scrap recycling device on the market adopts a single crushing structure, that is, the scrap is directly discharged after being crushed once by a crushing roller.

[0003] However, this traditional device has obvious defects: on the one hand, it is difficult to ensure that all the scraps meet the qualified particle size after one crushing, and part of the large particle scraps which are not completely crushed are mixed with qualified particles and discharged, which needs to be manually sorted and crushed again, thereby increasing the labor cost and reducing the recycling efficiency; on the other hand, during the screening process of the crushed scraps, the screen mesh is easy to be blocked by the scraps, thereby affecting the screening effect, and frequent shutdown and cleaning are needed, which further interrupts the recycling process; in addition, the scrap conveying link of the traditional device is open or semi-open, which is easy to produce dust overflow and pollute the working environment, and the material collecting structure is not convenient to disassemble and assemble, which is not conducive to the subsequent transfer and treatment of the recycled scraps.

[0004] Therefore, we propose an acrylic processing scrap recycling device to solve the above problems. SUMMARY

[0005] In view of the problems in the prior art, the present application proposes the following technical scheme:

[0006] The acrylic processing scrap recycling device comprises a recycling device body and a feeding port arranged on the recycling device body, characterized in that the recycling device body is internally provided with, in sequence along the falling direction of the material, a crushing assembly, a screening assembly and a driving backflow assembly.

[0007] The crushing assembly is used for crushing the acrylic scrap falling from the feeding port.

[0008] The screening assembly is arranged below the crushing assembly and is used for screening the crushed acrylic scrap to separate qualified particles from unqualified particles.

[0009] The driving backflow assembly is arranged between the crushing assembly and the screening assembly and is used for returning the unqualified particles intercepted by the screening assembly to the crushing assembly for secondary crushing; wherein the screening assembly comprises a ring-shaped screen mesh and a plurality of spacers arranged between the crushing assembly and the ring-shaped screen mesh, and a backflow channel is formed between the ring-shaped screen mesh and the spacers.

[0010] The driving backflow assembly comprises a rotating plate rotatably arranged in the recycling device body and a stirring main plate connected to the rotating plate and extending into the backflow channel, the stirring main plate drives the unqualified particles intercepted in the backflow channel to backflow to the crushing assembly under the driving of the rotating plate.

[0011] As a preferred embodiment of the above technical solution, the crushing assembly comprises:

[0012] two groups of crushing rollers arranged side by side and forming a material falling gap corresponding to the position directly below the material inlet;

[0013] two groups of gears coaxially connected with the two groups of crushing rollers and engaged with each other; and a driving motor arranged outside the recycling device body and in transmission connection with one of the two groups of gears, for driving the two groups of crushing rollers to rotate in opposite directions.

[0014] As a preferred embodiment of the above technical solution, the stirring main plate is internally provided with an inner cavity, an inner plate is connected in the inner cavity through a first elastic member, the inner plate is connected with the inner wall of the inner cavity through a sliding guide mechanism, and the outer side of the inner plate is connected with a cleaning member for cleaning the outer wall of the annular screen through a detachable mechanism.

[0015] As a preferred embodiment of the above technical solution, the detachable mechanism comprises:

[0016] a sleeving plate, one end of which is connected with the cleaning member and the other end of which is inserted with the inner plate through an inserting member;

[0017] a movable plate arranged in the deep gap of the sleeving plate through an elastic sliding mechanism;

[0018] an inserting rod connected with the side plate on the outer side of the movable plate and inserted into the inner plate through the sleeving plate; and a locking member for locking the side plate and the sleeving plate.

[0019] As a preferred embodiment of the above technical solution, the recycling device body is further provided below the screening assembly with:

[0020] a first flow guide member and a second flow guide member for guiding the qualified particles;

[0021] a conveying cavity, the top of which is provided with a material inlet abutting against the bottom end of the second flow guide member, and the inside of which is provided with a spiral conveying belt;

[0022] and a material collecting groove arranged below the conveying cavity for collecting the qualified particles.

[0023] As a preferred embodiment of the above technical solution, the material collecting groove is detachably arranged in the recycling device body through a quick release mechanism; the quick release mechanism comprises:

[0024] A side cover plate is arranged outside the material collecting groove and penetrates the side wall of the recycling device body;

[0025] A limiting block is inserted into the top end of the side cover plate;

[0026] A pressing plate and a top pulling plate are connected to the top end of the limiting block in sequence;

[0027] A side pressing plate is connected to the outside of the top pulling plate and abuts against the outer wall of the side cover plate;

[0028] An elastic lifting mechanism is connected between the top pulling plate and a limiting groove arranged in the outer side wall of the recycling device body, for providing elastic locking force.

[0029] As a preferred technical solution of the above, the elastic lifting mechanism comprises:

[0030] A sliding rod is fixed in the limiting groove;

[0031] A third sliding block is slidably sleeved on the sliding rod and connected with the top pulling plate; and a third elastic member is connected between the third sliding block and the bottom of the limiting groove and sleeved outside the sliding rod.

[0032] As a preferred technical solution of the above, the top of the annular screen is provided with a notch abutting with the lower edge of the material inlet.

[0033] The present application has the following beneficial effects:

[0034] 1. Through the cooperative matching of the "crushing assembly-screening assembly-driving assembly", the present application forms an automatic closed loop circulation of "crushing-screening-reflowing-re-crushing", can perform multiple crushing on the acrylic excess material, effectively solves the problem of incomplete one-time crushing and manual sorting and reprocessing of the traditional device, significantly improves the crushing uniformity of the acrylic excess material, ensures that the finally recovered excess material meets the particle size requirement, reduces the labor input, and improves the recycling efficiency.

[0035] 2. The screen cleaning structure is provided, and under the cooperation of the first elastic member, the first sliding rail and the first sliding block, the cleaning member can always tightly adhere to the outer wall of the screen and apply pressure, can clean the screen when the material stirring main plate rotates, can also push out the excess material blocking the screen holes, effectively avoids the screen blockage, ensures the continuous and smooth screening link, reduces the downtime cleaning time, and further improves the continuous working capacity of the device.

[0036] 3. The cleaning member adopts a convenient dismounting mechanism, and through the cooperation of the plug-in rod, the elastic member and the bolt structure, the dismounting and installation of the cleaning member can be quickly completed, the cleaning member can be conveniently replaced or maintained in the later period, and the maintenance difficulty and cost of the device are reduced.

[0037] 4. The conveying of qualified excess materials adopts a structure combining a closed conveying cavity and a spiral conveying belt, cooperates with the guiding effect of the drainage member, realizes directional and closed conveying of the excess materials, effectively prevents dust overflow, protects the working environment and meets the environmental protection requirements; meanwhile, the material collecting groove is convenient to disassemble and assemble through the side cover plate, the limiting block, the top pull plate and other structures, so that the qualified excess materials collected are convenient to transfer, and the use convenience of the device is improved. BRIEF DESCRIPTION OF DRAWINGS

[0038] Figure 1 The front view state internal structure schematic diagram provided by the embodiment of the application is shown;

[0039] Figure 2 The front view state internal structure schematic diagram provided by the embodiment of the application is shown; Figure 1 The partial explosion structure schematic diagram of the crushing roller is shown;

[0040] Figure 3 The front view state internal structure schematic diagram provided by the embodiment of the application is shown; Figure 1 The partial explosion structure schematic diagram of the crushing roller is shown;

[0041] Figure 4 The front view state internal structure schematic diagram provided by the embodiment of the application is shown; Figure 1 The partial explosion structure schematic diagram of the crushing roller is shown;

[0042] Figure 5 The front view state internal structure schematic diagram provided by the embodiment of the application is shown; Figure 1 The front view state internal structure schematic diagram provided by the embodiment of the application is shown;

[0043] Figure 6 The front view state internal structure schematic diagram provided by the embodiment of the application is shown; Figure 1 The front view state internal structure schematic diagram provided by the embodiment of the application is shown;

[0044] Figure 7 The front view state internal structure schematic diagram provided by the embodiment of the application is shown. Figure 5 The front view state internal structure schematic diagram provided by the embodiment of the application is shown.

[0045] LEGEND:

[0046] 1, recovery device body; 2, inlet; 3, screen; 4, spacer; 5, crushing roller; 6, drive motor one; 7, backflow channel; 8, gear; 9, inner plate; 10, material stirring main plate; 11, inner cavity; 12, first sliding rail; 13, first sliding block; 14, first elastic member; 15, plug-in part; 16, sleeve plate; 17, plug-in rod; 18, side plate; 19, bolt; 20, movable plate; 21, second sliding block; 22, second sliding rail; 23, second elastic member; 24, cleaning part; 25, drainage part one; 26, drainage part two; 27, conveying cavity; 28, inlet; 29, spiral conveying belt; 30, material collecting groove; 31, side cover plate; 32, limiting block; 33, pressing plate; 34, side pressing plate; 35, top pulling plate; 36, third sliding block; 37, sliding rod; 38, third elastic member; 39, limiting groove; 40, rotating plate; 41, drive motor two; 42, notch. DETAILED DESCRIPTION

[0047] To make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme of the present application will be described clearly and completely below with reference to the embodiments.

[0048] The present application provides a kind of acrylic processing excess material recycling device, to solve the problems such as incomplete crushing, screen easy to block, excess material conveying dust overflow and inconvenient material collection of traditional acrylic recycling device. The device realizes the efficient recycling of acrylic excess material through the coordinated design of closed-loop crushing, self-cleaning screen, closed conveying and convenient material collection structure.

[0049] As shown in Figure 1 , Figure 2 , Figure 3 and Figure 4 , the acrylic processing excess material recycling device includes a recycling device body 1, which is a rectangular box structure. A material inlet 2 is provided at the top center of the recycling device body 1. The material inlet 2 is in the form of a funnel structure, which facilitates the centralized feeding of acrylic excess material. Inside the recycling device body 1, a crushing assembly, a screening assembly and a driving assembly are arranged in sequence along the vertical direction. All three assemblies are located on the material falling path directly below the material inlet 2. The crushing assembly is used to preliminarily crush the fed acrylic excess material. The screening assembly is used to separate qualified and unqualified crushed particles. The driving assembly is used to return unqualified particles to the crushing assembly for secondary processing.

[0050] The specific structure of the crushing assembly is as follows: two groups of crushing rollers 5 are horizontally arranged in parallel, the axes of the two groups of crushing rollers 5 are located in the same horizontal plane and are parallel to each other, and a gap of 5-10 mm is reserved between the two groups, which is just opposite to the bottom outlet of the feeding port 2, so as to ensure that the excess material falling from the feeding port 2 can directly enter the gap; the two ends of each group of crushing rollers 5 are rotatably installed on the inner side wall of the recycling device body 1 through bearing seats, and one end extends to the outside of the recycling device body 1 and is coaxially fixedly connected with a gear 8, the two gears 8 are of the same size and are meshed with each other; a driving motor one 6 is fixedly installed on the outer side wall of the recycling device body 1 through a motor support, and the output shaft of the driving motor one 6 is drivingly connected with one end of one group of gears 8 away from the crushing roller 5; when the driving motor one 6 is started by being connected with power supply, the output shaft drives the gear 8 connected therewith to rotate clockwise, and through the meshing effect of the gears, the other gear 8 rotates counterclockwise synchronously, thereby driving the two groups of crushing rollers 5 to rotate in opposite directions; for example, one group rotates clockwise and the other group rotates counterclockwise, and the crushing teeth on the surface of the roller body are used to extrude and shear the excess acrylic material entering the gap, so as to realize the crushing operation.

[0051] The screening assembly is arranged directly below the crushing roller 5, and the structure thereof comprises a screen 3, a partition 4 and a backflow channel 7; the screen 3 is a circular ring cylindrical structure made of stainless steel, the inner diameter thereof is greater than the maximum distance between the outer sides of the two groups of crushing rollers 5, and the screen 3 coaxially surrounds the outside of the two groups of crushing rollers 5; the top edge of the screen 3 extends upward and forms a notch 42 matched with the lower edge of the feeding port 2, the width of the notch 42 is consistent with the width of the bottom outlet of the feeding port 2, and the two are fixedly connected through bolts, so as to ensure that the excess material cannot leak out of the edge gap; the mesh diameter of the screen 3 is set to 3-5 mm according to the recycling requirements, for intercepting the unbroken particles with a particle size too large; a plurality of partitions 4 are uniformly and interval ly distributed between the crushing roller 5 and the screen 3 in the circumferential direction, the partition 4 is a rectangular plate structure, the top end thereof is fixedly connected with the inner wall of the top end of the screen 3, and the bottom end extends downward to 2 / 3 of the height of the screen 3, independent fan-shaped channels, i.e. backflow channels 7, are formed between the adjacent two groups of partitions 4, the backflow channels 7 are coaxially arranged with the screen 3, and the width thereof is 5-8 cm, so as to facilitate the unqualified particles to slide downward and collect under the action of gravity.

[0052] The driving assembly is installed at the bottom end of the screening assembly, and is used for pushing the unqualified particles in the backflow channel 7 to the crushing assembly for re-crushing; the assembly comprises a rotating plate 40, a stirring main plate 10 and a driving motor two 41; the rotating plate 40 is a circular plate structure, and its diameter is slightly smaller than the inner diameter of the screen 3, is rotatably installed on the mounting seat of the inner side wall of the recycling device body 1, and is coaxially arranged with the screen 3; the stirring main plate 10 is a rectangular plate structure, and the number thereof is consistent with the number of the backflow channels 7, is uniformly fixed on the top end surface of the rotating plate 40 along the circumferential direction of the rotating plate 40, the height of the stirring main plate 10 is adapted to the height of the backflow channel 7, and the width of the stirring main plate 10 is slightly smaller than the width of the backflow channel 7, so that the stirring main plate 10 can completely extend into the backflow channel 7 and leave a gap of 1-2 mm; the driving motor two 41 is fixedly installed on the outer side wall of the recycling device body 1 through a motor support, the output shaft of the driving motor two 41 penetrates the side wall of the recycling device body 1 and is in transmission connection with the central shaft of the rotating plate 40 through a shaft coupling; when the driving motor two 41 is started, the rotating plate 40 is driven to rotate at a constant speed, the stirring main plate 10 rotates synchronously with the rotating plate 40, and in the rotating process, the stirring main plate 10 contacts the unqualified particles in the backflow channel 7 and pushes the unqualified particles upwards along the backflow channel 7 to above the gap of the crushing roller 5, so that a circulation process of secondary crushing is realized.

[0053] In order to solve the problem that the screen 3 is easy to be blocked during use, the self-cleaning structure is arranged on the stirring main plate 10. Figure 1 、 Figure 5 and Figure 7 As shown in the drawings, a rectangular inner cavity 11 is formed in the stirring main plate 10 along the length direction, both ends of the inner cavity 11 are closed, a first elastic member 14 is fixedly connected to the position close to the inner side wall in the inner cavity 11, a compression spring is adopted, the other end of the first elastic member 14 is fixedly connected to an inner plate 9, the inner plate 9 is a rectangular plate structure matched with the inner cavity 11, and can slide along the inner cavity 11 under the action of the first elastic member 14; first sliding blocks 13 are fixedly connected to the outer walls on both sides of the inner plate 9 in a symmetrical manner, first sliding rails 12 matched with the first sliding blocks 13 are formed in the corresponding inner walls of the inner cavity 11, the first sliding rails 12 are arranged along the width direction of the stirring main plate 10, and the sliding cooperation of the first sliding blocks 13 and the first sliding rails 12 ensures that the inner plate 9 stably slides along the horizontal direction. The side of the inner plate 9 away from the first elastic member 14 extends to the outside of the inner cavity 11, a cleaning member 24 matched with the inner plate 9 is connected to the outer side wall of the inner plate 9 through a dismounting mechanism, a wear-resistant rubber scraper is adopted, and the outer side edge of the cleaning member 24 is in close contact with the inner wall of the screen 3; under the elastic force of the first elastic member 14, the cleaning member 24 always applies pressure to the inner wall of the screen 3, and when the stirring main plate 10 rotates, the cleaning member 24 synchronously scrapes the inner wall of the screen 3, which can not only clean the adhered particles, but also push the particles blocking the screen mesh out, thereby effectively preventing the screen from being blocked.

[0054] The specific structure of the disassembling mechanism is as follows: comprising a plug-in piece 15, a sleeve plate 16, a movable plate 20, a side plate 18, a plug-in rod 17 and a bolt 19; the plug-in piece 15 is a rectangular protruding block structure and is fixedly arranged on the outer side wall of the inner plate 9; the sleeve plate 16 is a rectangular plate structure, the inner side wall of which is provided with a plug-in groove matched with the plug-in piece 15, and the cleaning piece 24 is fixedly connected to the outer side wall of the sleeve plate 16 through a bolt; the two side walls of the sleeve plate 16 are symmetrically provided with rectangular deep gaps, the deep gaps are used for accommodating the movable plate 20, and the movable plate 20 is a rectangular plate structure matched with the deep gaps; the upper and lower inner walls of the deep gaps are provided with second sliding rails 22, and the upper and lower outer walls of the movable plate 20 are correspondingly provided with second sliding blocks 21, the second sliding blocks 21 are slidingly connected in the second sliding rails 22, so as to ensure that the movable plate 20 slides in the horizontal direction. The inner side wall of the deep gap is fixedly connected with a second elastic piece 23, which is a compression spring, and the other end of the second elastic piece 23 is fixedly connected with the inner side wall of the movable plate 20. The outer side wall of the movable plate 20 is fixedly connected with the side plate 18, the side plate 18 is an L-shaped plate structure, the horizontal section of the side plate 18 is fixedly connected with the plug-in rod 17 away from the movable plate 20, the plug-in rod 17 is a cylindrical structure, the axis of the plug-in rod 17 is consistent with the sliding direction of the movable plate 20, and the plug-in rod 17 penetrates through the side wall of the sleeve plate 16 and is plugged into the plug hole arranged at the corresponding position of the inner plate 9; the bolt 19 is arranged through the vertical section of the side plate 18 and is threadedly connected with the threaded hole arranged on the side wall of the sleeve plate 16, so as to lock the position of the side plate 18; when the cleaning piece 24 needs to be replaced, the bolt 19 is unscrewed, the side plate 18 is pulled outwards, the movable plate 20 slides outwards along the second sliding rail 22 under the action of the second elastic piece 23, the plug-in rod 17 is driven to be separated from the plug hole of the inner plate 9, then the inner plate 9 is pressed inwards, the plug-in piece 15 is separated from the plug-in groove of the sleeve plate 16, and the cleaning piece 24 can be removed; the reverse operation is performed during installation, and finally the bolt 19 is tightened to complete the fixation, so that the disassembling process is convenient and efficient.

[0055] In order to realize the closed conveying of qualified particles, the conveying structure is arranged below the screen 3. Figure 1 and Figure 6As shown, the inner side wall of the recovery device body 1 is fixedly installed with a drainage member one 25 directly below the screen 3, which is a reverse conical funnel structure, the top opening diameter of which is larger than the outer diameter of the screen 3, ensuring that all qualified particles passing through the screen 3 can fall into it; the bottom end outlet of the drainage member one 25 is provided with a drainage member two 26, which is an inclined rectangular guide plate, the top end of which is fixedly connected with the inner side wall of the recovery device body 1, and the bottom end is inclined downward and abuts on the feed inlet 28; the feed inlet 28 is opened at the top end of the conveying cavity 27, which is a cylindrical cylinder structure, horizontally installed at the lower part of the recovery device body 1 through a fixed support, and provided with a spiral conveying belt 29 inside, both ends of the spiral conveying belt 29 are rotatably installed on the end wall of the conveying cavity 27 through bearings, and one end extends to the outside of the conveying cavity 27 and is connected with a driving device through a shaft coupling, driven by the output shaft of a speed reducer motor; the bottom end of the conveying cavity 27 away from the feed inlet 28 is provided with a discharge outlet, and a receiving groove 30 is provided directly below the discharge outlet, which is a rectangular groove with an open top, and a side cover plate 31 is fixedly connected on the outer side wall thereof, which is a rectangular plate matched with the side wall of the recovery device body 1, and is fixedly connected with the receiving groove 30 through bolts penetrating the side wall of the recovery device body 1, so that the receiving groove 30 is sealingly installed in the recovery device body 1; after the qualified particles fall through the screen 3, they enter the conveying cavity 27 in turn through the drainage member one 25 and the drainage member two 26, the driving device drives the spiral conveying belt 29 to rotate, and the particles are conveyed along the conveying cavity 27 to the receiving groove 30 for collection, and the whole conveying process is carried out in a closed space, effectively preventing dust overflow.

[0056] In order to facilitate the taking and placing of the material collecting groove 30, the device is provided with a convenient disassembly structure; a rectangular slot is formed in the middle of the top end of the side cover plate 31, and a limiting block 32 is inserted into the slot; the limiting block 32 is a rectangular block matched with the slot, and a pressing plate 33 is fixedly connected to the top end of the limiting block 32; the pressing plate 33 is a horizontally arranged rectangular plate, and a top pull plate 35 is fixedly connected to the middle of the top end of the pressing plate 33; the top pull plate 35 is a vertically arranged rectangular plate; a side pressing plate 34 is fixedly connected to the middle of the outer side wall of the top pull plate 35; the side pressing plate 34 is an L-shaped plate structure, and the bottom end inner wall of the horizontal section of the side pressing plate 34 is in close abutment with the top end surface of the side cover plate 31, thereby playing a limiting role; a third sliding block 36 is fixedly connected to the back of the top pull plate 35; the third sliding block 36 is a rectangular block structure and is slidingly connected to a sliding rod 37; the sliding rod 37 is a cylindrical rod and is vertically fixedly installed in a limiting slot 39; the limiting slot 39 is a rectangular slot formed in the outer side wall of the recycling device body 1; a third elastic member 38 is fixedly connected to the bottom end of the third sliding block 36; the third elastic member 38 is a tension spring; the bottom end of the third elastic member 38 is fixedly connected to the bottom wall of the limiting slot 39, and the middle part of the third elastic member 38 is wrapped around the outside of the sliding rod 37; under the action of the tension of the third elastic member 38, the limiting block 32 is always inserted into the slot of the side cover plate 31, and the side pressing plate 34 is in close abutment with the side cover plate 31, thereby ensuring the stable installation of the material collecting groove 30; when it is necessary to take out the material collecting groove 30, the top pull plate 35 is pulled upward, the third sliding block 36 slides upward along the sliding rod 37, the third elastic member 38 is elongated, the limiting block 32 is driven to disengage from the slot, and the side pressing plate 34 is driven to disengage from the side cover plate 31; at this time, the side cover plate 31 can be pulled outward, and the material collecting groove 30 can be taken out from the recycling device body 1, which is simple and convenient to operate.

[0057] In this embodiment, the drive motor one 6 and the drive motor two 41 are both servo motors, which can adjust the speed through the controller to adapt to different crushing requirements; the elastic coefficients of the first elastic member 14, the second elastic member 23 and the third elastic member 38 can be selected according to actual use requirements to ensure the stable operation of each component; the mesh diameter of the screen 3 can be replaced according to the particle size requirements of the recycled particles to improve the versatility of the device.

[0058] Working principle

[0059] The acrylic processing excess material is poured into the recycling device body 1 from the feeding port 2 above, and first enters the crushing assembly along the falling path; the drive motor one 6 is started to drive a set of gear wheels 8 to rotate; since the two sets of gear wheels 8 are meshed with each other and are coaxially connected with the two sets of crushing rollers 5 respectively, the two sets of gear wheels 8 drive the two sets of crushing rollers 5 to rotate in opposite directions synchronously; the acrylic excess material falling from the feeding port 2 enters the gap between the two sets of crushing rollers 5 and is crushed into smaller particles under the extrusion and shearing action of the counter-rotating rollers;

[0060] The broken acrylic excess material falls to the screening assembly and enters the area surrounded by the annular screen 3; wherein the qualified excess material with particle size smaller than the aperture of the screen 3 is discharged through the mesh of the screen 3, and the unqualified excess material with particle size too large is intercepted by the screen 3 and slides along the inner wall of the screen 3 to the bottom; since the multiple sets of partitions 4 are spaced apart between the crushing roller 5 and the screen 3, the space between the two is separated to form a reflux channel 7 coaxial with the screen 3, and the unqualified excess material is collected in the reflux channel 7 under the action of gravity; at the same time, the notch 42 at the top of the screen 3 borders with the lower edge of the inlet 2 to prevent the excess material from leaking from the edge and to ensure that all the excess material passes through the screening;

[0061] When the driving assembly is started, the driving motor 41 drives the rotating plate 40 to rotate, and the material shifting main plate 10 at the end of the rotating plate 40 rotates synchronously; since the material shifting main plate 10 extends into the screen 3 and is matched with the reflux channel 7, it contacts the unqualified excess material in the reflux channel 7 during rotation and pushes it along the reflux channel 7 to the feeding area of the crushing assembly, above the gap between the two sets of crushing rollers 5, so that the unqualified excess material reenters the crushing assembly for secondary crushing, forming a circulating process of “crushing-screening-refluxing-re-crushing”, until all the excess material reaches the qualified particle size;

[0062] In the above process, the inner cavity 11 on the inner side of the material shifting main plate 10 is connected to the inner plate 9 through the first elastic member 14, and under the elastic potential energy of the first elastic member 14 and the sliding guide action of the first sliding rail 12 and the first sliding block 13, the inner plate 9 always tightly abuts against the outer wall of the screen 3 and exerts pressure; when the material shifting main plate 10 rotates, the cleaning member 24 rotates synchronously and sweeps the outer wall of the screen 3, and at the same time, pushes out the excess material blocking the mesh, avoiding the clogging of the screen 3; if it is necessary to replace the cleaning member 24, the side plate 18 is pulled outward, the second elastic member 23, the second sliding block 21 and the second sliding rail 22 are matched to make the plug-in rod 17 disengage from the inner plate 9, the inner plate 9 is squeezed to make the plug-in member 15 separate, and then the cleaning member 24 can be removed, and the installation can be completed by reverse operation.

[0063] The qualified excess material passing through the screen 3 falls into the drainage member one 25, is guided to the drainage member two 26, and is guided to the feeding port 28 of the conveying cavity 27 by the drainage member two 26; the driving device in the conveying cavity 27 drives the spiral conveying belt 29 to rotate, and the qualified excess material is conveyed along the closed conveying cavity 27 to the collection tank 30 for collection; when it is necessary to transfer the excess material in the collection tank 30, the top pull plate 35 is pulled upward, the third sliding block 36, the sliding rod 37 and the third elastic member 38 are matched to drive the limiting block 32 to disengage from the side cover plate 31 and make the side pressing plate 34 disengage from the abutment of the side cover plate 31, and the side cover plate 31 is pulled outward to take out the collection tank 30, and the transfer of the excess material is completed.

[0064] The above embodiments are only used to illustrate the technical solutions of the present application, rather than limit them.

Claims

1. A device for recycling waste acrylic material, comprising a recycling device body (1) and a feeding inlet (2) arranged thereon, characterized in that, The recycling device body (1) is sequentially provided with: A crushing assembly for crushing the acrylic excess material falling from the inlet (2); A screening assembly arranged below the crushing assembly for screening the crushed acrylic excess material to separate qualified particles from unqualified particles; A driving backflow assembly arranged between the crushing assembly and the screening assembly for backflowing the unqualified particles intercepted by the screening assembly to the crushing assembly for secondary crushing; The screening assembly includes a ring-shaped screen (3) and a plurality of spacers (4) arranged between the crushing assembly and the ring-shaped screen (3), and the ring-shaped screen (3) and the spacers (4) form a backflow channel (7); The driving backflow assembly includes a rotating plate (40) rotatably arranged in the recycling device body (1) and a material stirring main plate (10) connected to the rotating plate (40) and extending into the backflow channel (7), the material stirring main plate (10) backflows the unqualified particles intercepted in the backflow channel (7) to the crushing assembly under the drive of the rotating plate (40); The material stirring main plate (10) is internally provided with an inner cavity (11), the inner cavity (11) is connected with an inner plate (9) through a first elastic member (14), and the inner plate (9) is connected with the inner wall of the inner cavity (11) through a sliding guide mechanism; The recycling device body (1) is further provided with: A drainage member one (25) and a drainage member two (26) for guiding the qualified particles; A conveying cavity (27) provided with an inlet (28) at the top and abutting against the bottom end of the drainage member two (26), a spiral conveying belt (29) arranged inside the conveying cavity (27); And a material collecting groove (30) arranged below the conveying cavity (27) for collecting the qualified particles; The material collecting groove (30) is detachably arranged in the recycling device body (1) through a quick release mechanism; The quick release mechanism includes: A side cover plate (31) arranged outside the material collecting groove (30) and penetrating through the side wall of the recycling device body (1); A limiting block (32) inserted into the top end of the side cover plate (31); A pressing plate (33) and a top pull plate (35) connected to the top end of the limiting block (32) in sequence; A side pressing plate (34) connected to the outside of the top pull plate (35) and abutting against the outer wall of the side cover plate (31); An elastic lifting mechanism connected between the top pull plate (35) and a limiting groove (39) formed in the outer side wall of the recycling device body (1) for providing elastic locking force; The elastic lifting mechanism includes: A sliding rod (37) fixed in the limiting groove (39); A third sliding block (36) slidingly sleeved on the sliding rod (37) and connected with the top pull plate (35); and a third elastic member (38) connected between the third sliding block (36) and the bottom of the limiting groove (39) and sleeved outside the sliding rod (37).

2. The apparatus according to claim 1, wherein The crushing assembly includes: Two groups of crushing rollers (5) arranged side by side and forming a material falling gap corresponding to the position directly below the inlet (2); Two groups of gear wheels (8) coaxially connected with the two groups of crushing rollers (5) and engaged with each other; and a driving motor (6) arranged outside the recycling device body (1) and in transmission connection with one of the gear wheels (8) for driving the two groups of crushing rollers (5) to rotate reversely.

3. The apparatus according to claim 1, wherein The outer side of the inner plate (9) is connected with a cleaning member (24) for cleaning the outer wall of the annular screen (3) through a detachable mechanism.

4. The recycled acryl processing waste material recycling device according to claim 3, wherein The detachable mechanism comprises: A sleeve plate (16) connected with the cleaning member (24) at one end and inserted with the inner plate (9) through an inserting piece (15) at the other end; A movable plate (20) arranged in the deep gap of the sleeve plate (16) through an elastic sliding mechanism; An inserting rod (17) connected with a side plate (18) on the outer side of the movable plate (20) and inserted with the inner plate (9) through the sleeve plate (16); and a locking member for locking the side plate (18) and the sleeve plate (16).

5. The recycled acryl processing waste material recycling device according to claim 1, wherein The top of the annular screen (3) is provided with a notch (42) abutting with the lower edge of the feeding port (2).

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