Feeding device for degradable meal boxes

Abstract

The invention relates to the technical field of meal box production, and discloses a degradable meal box feeding device which comprises a screening frame and the like. A plurality of discharging guide frames are fixedly connected to the screening frame, large materials, qualified materials and small materials are guided out from top to bottom through the discharging guide frames, the large materials and the small materials do not meet the feeding specification, a screening frame is arranged in the screening frame and used for screening the materials to be machined, and the qualified materials and the small materials are conveyed to the discharging guide frames through the discharging guide frames. The shaking screening mechanism is installed in the screening frame. According to the device, when materials are screened, the eccentric wheel pushes the screening frame to move upwards, and after the eccentric wheel is not in contact with the screening frame, the shaking spring pushes the screening frame to slide downwards to reset, so that the screening frame continuously shakes up and down, the screening effect is improved, screening holes in the screening frame are cleaned through the lifting cleaning frame in the screening process, and the screening efficiency is improved. Screen holes are prevented from being blocked, and screening efficiency is ensured.

Description

Technical Field

[0001] The invention relates to the technical field of lunch box production, and in particular to a feeding device for a degradable lunch box. Background Art

[0002] Degradable lunch boxes refer to tableware that can undergo biochemical reactions under the action of enzymes from microorganisms (bacteria, mold, algae) in the natural environment, causing changes from mold on the appearance to internal quality, and ultimately forming carbon dioxide and water.

[0003] When producing degradable lunch boxes, a feeding device is required to put the materials into the production equipment. Before the materials are fed into the production equipment, they need to be dried and screened to remove moisture and impurities therein to ensure the quality of the finished product. The patent with announcement number CN214082292U discloses a feeding mechanism for producing lunch boxes by a high-speed injection molding machine, which solves the problem that the materials cannot be filtered and screened during feeding, which affects the production quality of the lunch boxes. The feeding mechanism includes a bottom plate, a box body is provided at the top of the bottom plate, a support plate is provided at the top of the box body, a feeding rack is provided on one side of the bottom plate, the top of the feeding rack extends to the inner top of the box body, a receiving groove 1 and a receiving groove 2 are provided at the top of the bottom plate, and the bottom of the feeding rack extends to the inside of the receiving groove 1; by providing the box body, the feeding rack, the filter screen 1 and the filter screen 2, the double filtering operation of the fed materials is effectively realized, thereby improving the quality of the production of the later products, and at the same time, with the design of the support plate and the shaking mechanism, the shaking of the filter screen 1 is effectively realized, thereby effectively accelerating the filtering efficiency of the filter screen 1 on the materials.

[0004] The above device can screen the material. However, during the screening process, the material on the second filter screen is pressed by the first filter screen, which can easily cause the material to be squeezed into the filter holes on the filter screen due to force, affecting the filtration efficiency. In addition, the above device lacks a drying function. When the undried material is put into the molding equipment, it will affect the quality of the produced lunch boxes. Summary of the invention

[0005] The invention provides a feeding device for a degradable lunch box, so as to solve the technical problems that the filter screen of the above device is easily blocked during the screening process and lacks a drying function.

[0006] Technical solution: A feeding device for degradable lunch boxes, including a screening rack, a discharging guide frame, a screening frame, a shaking screening mechanism and a cleaning mechanism. The screening rack is fixedly connected to a discharging guide frame, and a screening frame is arranged inside the screening rack. The shaking screening mechanism is installed in the screening rack. The shaking screening mechanism is used to drive the screening frame to shake up and down and quickly screen the material. The cleaning mechanism is installed in the screening rack. The cleaning mechanism includes a fixed guide rod, a lifting shaft and a lifting cleaning rack. A fixed guide rod is fixed inside the screening rack, and a lifting shaft is slidably connected outside the fixed guide rod. A lifting cleaning rack is slidably connected to the lifting shaft. The lifting cleaning rack can clean the sieve holes of the screening frame to prevent the sieve holes from being blocked by materials.

[0007] Preferably, the shaking screening mechanism includes a shaking motor, an eccentric wheel and a shaking spring. The shaking motor is installed outside the screening frame, and the eccentric wheel is rotatably connected inside the screening frame. The top of the eccentric wheel is in contact with the screening frame. The output shaft of the shaking motor is fixedly connected to the rotating shaft of the eccentric wheel. A shaking spring is provided between the screening frame and the screening frame. When the eccentric wheel rotates, it cooperates with the shaking spring to drive the screening frame to vibrate up and down.

[0008] Preferably, the cleaning mechanism includes a fixed ring, a rotating gear ring, a sun gear, a planetary gear, a transmission gear, a transmission shaft, a rotating push block, a cleaning rod and a moving assembly. A fixed ring is fixedly connected to the outside of the screening frame, a rotating gear ring is rotatably connected inside the fixed ring, the sun gear is coaxially fixed to the eccentric wheel, a planetary gear is rotatably connected to the outside of the screening frame, the planetary gear is meshed with the eccentric wheel, teeth are provided inside and outside the rotating gear ring, the planetary gear is meshed with the rotating gear ring, the transmission shaft is rotatably connected to the screening frame, a transmission gear is fixed to the transmission shaft, the transmission gear is meshed with the rotating gear ring, a rotating push block is fixed to the transmission shaft, a cleaning rod is fixed to the lifting cleaning frame, the cleaning rod is aligned with the sieve holes on the screening frame, and the moving assembly is installed on the screening frame. The moving assembly is used to drive the lifting cleaning frame to move inside the screening frame to clean different positions inside the screening frame.

[0009] Preferably, the lifting cleaning frame is half the size of the screening frame, and a plurality of through holes are provided on the lifting cleaning frame, and the materials screened by the screening frame fall downward through the through holes on the lifting cleaning frame.

[0010] Preferably, the moving assembly includes a U-shaped connecting rod, a lifting rack, a sliding block, a return spring, a connecting frame, a rotating rod and a rotating gear. The lifting shaft is fixedly connected to the U-shaped connecting rod, the U-shaped connecting rod is slidably connected to the screening frame, the lifting rack is fixedly connected to the end of the U-shaped connecting rod, the screening frame is rotatably connected to the rotating rod, the rotating shaft of the rotating rod is connected to the rotating gear through a one-way bearing, the lifting rack is meshed with the rotating gear, the sliding block is slidably connected inside the screening frame, the lifting and cleaning frame is slidably connected to the sliding block, a return spring is provided between the lifting and cleaning frame and the sliding block, a connecting frame is fixedly connected to the outside of the sliding block, a straight groove is provided on the connecting frame, and the end of the rotating rod away from the rotating gear passes through the straight groove on the connecting frame and is slidably connected to the rotating gear.

[0011] Preferably, it also includes a shaking screen plate, side baffles and supporting springs. The shaking screen plate is slidably connected in the screening frame. The shaking screen plate and the screening frame are connected through the supporting springs. Side baffles are fixedly connected to both sides of the shaking screen plate.

[0012] Preferably, it also includes a fixed plate, a sliding block and a limit spring. The screening frame is fixedly connected to the fixed plate, and the sliding block is slidably connected to the fixed plate. The sliding block is connected to the fixed plate through the limit spring, and the sliding block matches the end of the rotating rod away from the rotating gear.

[0013] Preferably, it also includes a drying box, a dryer, a rotating frame, a torsion spring, a swinging material receiving plate and a pushing and discharging component. The drying box is fixedly connected to the screening frame, the dryer is installed on the drying box, the rotating frame is rotatably connected inside the drying box, the swinging material receiving plate is fixedly connected to the rotating shaft of the rotating frame, the rotating frame and the drying box are connected by a torsion spring, the pushing and discharging component is installed outside the screening frame, and the pushing and discharging component is used to push the swinging material receiving plate to swing downward and make the material in the drying box fall downward.

[0014] Preferably, the material discharging assembly includes a material discharge push block, a lifting push rod and a return spring. The material discharge push block is fixedly connected to the transmission shaft, and the material discharge push block is located outside the screening frame. The lifting push rod is slidably connected to the outside of the screening frame, and a return spring is provided between the lifting push rod and the screening frame.

[0015] Preferably, it also includes an L-shaped push plate and a fixed block. The L-shaped push plate is slidably connected in the screening frame, the L-shaped push plate is fixedly connected to the screening frame, and the fixed block is fixedly connected to the rotating frame.

[0016] The present invention has the following advantages: 1. When screening materials, the device pushes the screening frame upward through the eccentric wheel. After the eccentric wheel is out of contact with the screening frame, the shaking spring will push the screening frame to slide downward and reset, so that the screening frame will continuously shake up and down to quickly screen the materials. At the same time, the up and down shaking of the screening frame can also shake the materials to disperse them, which can prevent the materials from piling up on the screening frame and improve the screening efficiency.

[0017] 2. During the screening process, when the eccentric wheel rotates, it can drive the transmission shaft to rotate through the planetary reduction structure. During the rotation of the transmission shaft, the lifting shaft and the lifting cleaning frame can be pushed up by rotating the push block. When the lifting cleaning frame rises, the sieve holes of the screening frame can be cleaned to push the materials blocked in the sieve holes upward.

[0018] 3. The size of the lifting cleaning rack is half of the screening frame. Each time the lifting cleaning rack rises, it will clean half of the sieve holes in the screening frame, so that the screening frame can still screen the materials during the cleaning process. Each time the lifting cleaning rack descends and resets, it will move along the lifting shaft to the uncleaned end to clean all the sieve holes in the screening frame.

[0019] 4. The materials screened by the screening frame will fall on the shaking screen plate. The rotating push block will push the shaking screen plate down when it rotates. After the rotating push block is out of contact with the shaking screen plate, the shaking screen plate will continue to slide upward and reset under the push of the supporting spring to remove small pieces of material mixed in the screened materials to prevent small pieces of material from affecting the quality of the finished product when making lunch boxes. Through double-layer screening by the screening frame and the shaking screen plate, the materials are divided into three parts, large, medium and small, and collected separately.

[0020] 5. Dry the material in a dryer before screening. During the drying process, when the screening frame rises, the L-shaped push plate can push the fixed block and the rotating frame to rise, so that the swing receiving plate can swing downward. When the screening frame drops, under the action of the torsion spring, the swing receiving plate swings upward again to reset. The swing receiving plate keeps swinging up and down in a small range to continuously throw the material in the drying box upward to ensure the drying effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic structural diagram of the front side of the present invention.

[0022] Figure 2 It is a structural schematic diagram of the back side of the present invention.

[0023] Figure 3 It is a schematic diagram of the cross-sectional structure of the screening rack of the present invention.

[0024] Figure 4 It is a structural schematic diagram of the lifting cleaning frame of the present invention.

[0025] Figure 5 It is a schematic structural diagram of the rotating gear ring of the present invention.

[0026] Figure 6 It is a structural schematic diagram of the sliding block of the present invention.

[0027] Figure 7 It is a structural schematic diagram of the lifting push rod of the present invention.

[0028] Figure 8 It is a schematic diagram of the cross-sectional structure of the drying box of the present invention.

[0029] The meanings of the reference numerals in the figure are as follows: 1. screening frame, 1001. discharging guide frame, 1002. fixed guide rod, 101. screening frame, 102. shaking motor, 103. eccentric wheel, 104. shaking spring, 105. L-shaped push plate, 106. shaking screen plate, 107. side baffle, 108. support spring, 2. fixed ring, 201. rotating gear ring, 202. sun gear, 203. planetary gear, 204. transmission gear, 2041. transmission shaft, 2042. unloading push block, 205. rotating push block, 206, lifting shaft, 207, lifting cleaning frame, 208, cleaning rod, 209, U-shaped connecting rod, 210, lifting rack, 3, sliding block, 301, return spring, 302, connecting frame, 303, rotating rod, 304, rotating gear, 4, fixed plate, 401, sliding block, 402, limit spring, 5, drying box, 501, drying machine, 502, lifting push rod, 503, return spring, 504, rotating frame, 505, torsion spring, 506, fixed block, 507, swing receiving plate. DETAILED DESCRIPTION

[0030] Reference to an embodiment herein means that a particular feature, structure, or characteristic described in conjunction with the embodiment may be included in at least one embodiment of the present invention. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0031] Embodiment 1: A feeding device for a degradable lunch box, such as Figure 1-Figure 8 As shown, it includes a screening frame 1, a discharging guide frame 1001, a screening frame 101, a shaking screening mechanism and a cleaning mechanism. The discharging guide frame 1001 is fixedly connected to the screening frame 1. There are multiple discharging guide frames 1001, and the discharging guide frames 1001 respectively guide out large pieces of materials, qualified materials and small pieces of materials from top to bottom, wherein both large pieces of materials and small pieces of materials do not meet the feeding specifications. The screening frame 1 is provided with a screening frame 101, and the screening frame 101 is used to screen the materials to be processed. The shaking screening mechanism is installed in the screening frame 1. The shaking screening mechanism is used to drive the screening frame 101 to shake up and down and quickly screen the material. The cleaning mechanism is installed in the screening frame 1. The cleaning mechanism includes a fixed guide rod 1002, a lifting shaft 206 and a lifting cleaning frame 207. The screening frame 1 is fixedly connected with a fixed guide rod 1002, and the fixed guide rod 1002 is slidably connected with the lifting shaft 206 outside. The lifting cleaning frame 207 is slidably connected to the lifting shaft 206. The lifting cleaning frame 207 can clean the sieve holes of the screening frame 101 to prevent the sieve holes from being blocked by materials.

[0032] The material is put into the screening frame 101 in the screening rack 1, and then the shaking screening mechanism is started. The shaking screening mechanism drives the screening frame 101 to shake up and down to screen the material. As the screening frame 101 continues to vibrate, the material that cannot pass through the screening frame 101 slides outward from the discharge guide frame 1001 at the highest point of the screening rack 1, and the screened material falls outward from the discharge guide frame 1001 at the lower level of the screening rack 1 into the lunch box processing equipment. When the shaking screening mechanism is running, it can drive the cleaning mechanism to run. When the cleaning mechanism is running, it can drive the lifting shaft 206 to move up and down along the fixed guide rod 1002. When the lifting shaft 206 rises, it rises through the lifting cleaning rack 207. When the lifting cleaning rack 207 rises, the sieve holes on the screening frame 101 are cleaned to remove the materials blocked in the sieve holes.

[0033] Embodiment 2: Based on embodiment 1, Figure 2 and Figure 3As shown, the shaking screening mechanism includes a shaking motor 102, an eccentric wheel 103 and a shaking spring 104. The shaking motor 102 is installed outside the screening frame 1, and the eccentric wheel 103 is rotatably connected inside the screening frame 1. The top of the eccentric wheel 103 contacts the screening frame 101, and the output shaft of the shaking motor 102 is fixedly connected to the rotating shaft of the eccentric wheel 103. The shaking motor 102 can drive the eccentric wheel 103 to rotate. A shaking spring 104 is provided between the screening frame 101 and the screening frame 1, and one end of the shaking spring 104 is fixed on the screening frame 1, and the other end is fixed on the screening frame 101. When the eccentric wheel 103 rotates, it cooperates with the shaking spring 104 to drive the screening frame 101 to vibrate up and down, so as to quickly screen the material.

[0034] When the shaking motor 102 is started, it drives the eccentric wheel 103 to rotate. When the eccentric wheel 103 rotates, it can push the screening frame 101 to slide upward along the screening frame 1. At this time, the shaking spring 104 is compressed. When the eccentric wheel 103 pushes the screening frame 101 to the highest point, as the eccentric wheel 103 continues to rotate, under the push of the shaking spring 104, the screening frame 101 will slide downward along the screening frame 1 and reset. Under the cooperation of the eccentric wheel 103 and the shaking spring 104, the screening frame 101 will continue to shake up and down along the screening frame 1 to quickly screen the material.

[0035] like Figure 4-Figure 6As shown, the cleaning mechanism includes a fixed ring 2, a rotating gear ring 201, a sun gear 202, a planetary gear 203, a transmission gear 204, a transmission shaft 2041, a rotating push block 205, a cleaning rod 208 and a moving assembly. The outside of the screening frame 1 is fixedly connected to the fixed ring 2, and the rotating gear ring 201 is rotatably connected inside the fixed ring 2. The eccentric wheel 103 is coaxially fixedly connected to the sun gear 202. The outside of the screening frame 1 is rotatably connected to the planetary gear 203, the planetary gear 203 is meshed with the eccentric wheel 103, and the rotating gear ring 201 is provided with teeth inside and outside. The planetary gear 203 is meshed with the rotating gear ring 201. When the eccentric wheel 103 rotates, the planetary gear 203 and the rotating gear ring 201 are driven to rotate through the sun gear 202. The screening frame 1 is rotatably connected to the transmission shaft 2041, and the transmission shaft 204 is fixedly connected to the transmission gear 204. The transmission gear 204 is meshed with the rotating gear ring 201. The rotating gear ring 201 is engaged, and drives the transmission shaft 2041 to rotate through the transmission gear 204. A rotating push block 205 is fixedly connected to the transmission shaft 2041, and the rotating push block 205 is located in the screening frame 1. When the rotating push block 205 rotates with the transmission shaft 2041, it can push the lifting shaft 206 to slide upward along the fixed guide rod 1002. A cleaning rod 208 is fixedly connected to the lifting cleaning frame 207, and the cleaning rod 208 is aligned with the sieve holes on the screening frame 101. The moving component is installed on the screening frame 1, and the moving component is used to drive the lifting cleaning frame 207 to move in the screening frame 1 to clean different positions in the screening frame 101; the lifting cleaning frame 207 is half the size of the screening frame 101, and a plurality of through holes are opened on the lifting cleaning frame 207, and the materials screened by the screening frame 101 fall downward through the through holes on the lifting cleaning frame 207.

[0036] During the rotation of the eccentric wheel 103, the planetary wheel 203 can be driven to rotate through the sun wheel 202. When the planetary wheel 203 rotates, it drives the transmission ring gear to rotate. When the transmission ring gear rotates, it drives the transmission shaft 2041 to rotate through the transmission gear 204. When the transmission shaft 2041 rotates, it drives the rotating push block 205 to rotate. When the rotating push block 205 contacts the lifting shaft 206 during its rotation, the rotating push block 205 will push the lifting shaft 206 to slide upward along the fixed guide rod 1002, and at the same time drive the lifting cleaning frame 207 to rise. When the lifting cleaning frame 207 rises, it drives the cleaning rod 208 to rise, and the rotating push block 205 pushes When the lifting and cleaning frame 207 rises to the highest point, the cleaning rod 208 is inserted into the sieve holes on the screening frame 101 to clean the sieve holes on the screening frame 101. As the rotating push block 205 continues to rotate, the lifting shaft 206 slides downward along the fixed guide rod 1002 to reset under the push of the moving component. In the process of the lifting shaft 206 descending, driven by the moving component, the lifting and cleaning frame 207 will slide along the lifting shaft 206 to the uncleaned end. As the rotating push block 205 continues to rotate, the lifting shaft 206 and the lifting and cleaning frame 207 continue to rise and clean the sieve holes at the other end of the screening frame 101.

[0037] like Figure 4 and Figure 6 As shown, the moving assembly includes a U-shaped connecting rod 209, a lifting rack 210, a sliding block 3, a reset spring 301, a connecting frame 302, a rotating rod 303 and a rotating gear 304. The lifting shaft 206 is fixedly connected with the U-shaped connecting rod 209, the U-shaped connecting rod 209 is slidably connected to the screening frame 1, the end of the U-shaped connecting rod 209 is fixedly connected with the lifting rack 210, the outer side of the screening frame 1 is rotatably connected with the rotating rod 303, the rotating shaft of the rotating rod 303 is connected with the rotating gear 304 through a one-way bearing, the lifting rack 210 is rotatably connected with the rotating rack 303, and the rotating gear 304 is connected to the rotating shaft of the rotating rod 303 through a one-way bearing. The rotating gear 304 is engaged, and a sliding block 3 is slidably connected inside the screening frame 1. The lifting and cleaning frame 207 is slidably connected to the sliding block 3. A reset spring 301 is provided between the lifting and cleaning frame 207 and the sliding block 3. One end of the reset spring 301 is fixed on the sliding block 3, and the other end is fixed on the lifting and cleaning frame 207. A connecting frame 302 is fixedly connected to the outside of the sliding block 3. A straight groove is provided on the connecting frame 302. The end of the rotating rod 303 away from the rotating gear 304 passes through the straight groove on the connecting frame 302 and is slidably connected thereto.

[0038] When the lifting shaft 206 drives the lifting cleaning frame 207 to rise, the reset spring 301 is compressed, and the lifting shaft 206 drives the U-shaped connecting rod 209 to rise when it rises. When the U-shaped connecting rod 209 rises, it can drive the lifting rack 210 to rise. During the rising process of the lifting rack 210, the rotating rod 303 will not be driven to rotate by the rotating gear 304. When the reset spring 301 pushes the lifting shaft 206 to fall, the U-shaped connecting rod 209 and the lifting rack 210 will fall accordingly. During the falling process of the lifting rack 210, the rotating rod 303 will be driven by the rotating gear 304. 3 rotates, and when the rotating rod 303 rotates, the sliding block 3 is driven to slide along the screening frame 1 through the connecting frame 302, and when the lifting rack 210 drops to the lowest point, the rotating rod 303 rotates 180 degrees, and the rotating rod 303 drives the sliding block 3 to slide to the other end of the screening frame 1 through the connecting frame 302, and at the same time, the lifting cleaning frame 207 is slid along the lifting shaft 206 to the other side of the inside of the screening frame 1, so that the lifting cleaning frame 207 moves to the end of the screening frame 101 that is not cleaned, and the function of moving the lifting cleaning frame 207 along the lifting shaft 206 is realized.

[0039] Embodiment 3: Based on embodiment 2, Figure 3As shown, it also includes a shaking screen plate 106, a side baffle 107 and a support spring 108. The shaking screen plate 106 is slidably connected in the screening frame 1. The rotating push block 205 can push the shaking screen plate 106 to slide downward during rotation. The shaking screen plate 106 and the screening frame 1 are connected through the support spring 108. One end of the support spring 108 is fixed on the shaking screen plate 106, and the other end is fixed on the screening frame 1. After the rotating push block 205 is out of contact with the shaking screen plate 106, the support spring 108 can push the shaking screen plate 106 to rise and reset. Side baffles 107 are fixed on both sides of the shaking screen plate 106.

[0040] The materials falling down through the screening frame 101 will fall on the shaking screen plate 106. When the rotating push block 205 rotates, it can push the shaking screen plate 106 to slide downward along the screening frame 1. When the shaking screen plate 106 descends, it can compress the supporting spring 108. When the rotating push block 205 is out of contact with the shaking screen plate 106, the supporting spring 108 pushes the shaking screen plate 106 to slide upward and reset. During the up and down movement of the shaking screen plate 106, the side baffle 107 can block the materials on the shaking screen plate 106. The material is prevented from falling from the side of the shaking screen plate 106. As the shaking screen plate 106 continues to shake, the material falling on the shaking screen plate 106 continues to move toward the discharge guide frame 1001 of the second layer outside the screening frame 1, and finally the qualified material remaining on the shaking screen plate 106 will slide downward from the discharge guide frame 1001 of the second layer outside the screening frame 1. The diameter of the material falling from the sieve holes on the shaking screen plate 106 is too small, and the material with a smaller diameter falls outward from the discharge guide frame 1001 of the bottom layer of the screening frame 1.

[0041] like Figure 3 As shown, it also includes a fixed plate 4, a sliding block 401 and a limiting spring 402. The screening frame 1 is fixedly connected to the fixed plate 4, and the sliding block 401 is slidably connected to the fixed plate 4. The sliding block 401 and the fixed plate 4 are connected through the limiting spring 402. One end of the limiting spring 402 is fixed to the sliding block 401, and the other end is fixed to the fixed plate 4. The sliding block 401 matches the end of the rotating rod 303 away from the rotating gear 304.

[0042] During the rising process of the lifting shaft 206, the end of the rotating rod 303 is stuck in the sliding block 401. Under the restriction of the limit spring 402, the sliding block 401 clamps the rotating rod 303 to prevent the rotating rod 303 from being affected and swinging. When the lifting shaft 206 drives the U-shaped connecting rod 209 and the lifting rack 210 to descend, the lifting rack 210 drives the rotating rod 303 to rotate through the rotating gear 304. When the rotating rod 303 rotates, it can escape from the sliding block 401. When the lifting rack 210 descends to the lowest point, the rotating rod 303 rotates 180 degrees and is stuck in the sliding block 401 on the other side. Sliding blocks 401 are provided on both sides of the rotating rod 303 to provide support for the rotating rod 303 during the rising process of the lifting shaft 206.

[0043] like Figure 7 and Figure 8 As shown, it also includes a drying box 5, a dryer 501, a rotating frame 504, a torsion spring 505, a swinging material receiving plate 507 and a pushing and discharging component. The drying box 5 is fixedly connected to the screening frame 1, and the dryer 501 is installed on the drying box 5. The rotating frame 504 is rotatably connected in the drying box 5, and the swinging material receiving plate 507 is fixedly connected to the rotating shaft of the rotating frame 504. The rotating frame 504 and the drying box 5 are connected through the torsion spring 505, and the two ends of the torsion spring 505 are respectively fixed on the rotating frame 504 and the drying box 5. The pushing and discharging component is installed outside the screening frame 1, and the pushing and discharging component is used to push the swinging material receiving plate 507 to swing downward and make the material in the drying box 5 fall downward.

[0044] Before screening, the material is put into the drying box 5. At this time, the swinging material receiving plate 507 supports the material in the drying box 5 from the bottom, and the dryer 501 dries the material in the drying box 5. As the transmission shaft 2041 rotates continuously, the transmission shaft 2041 pushes the rotating frame 504 to swing upward by pushing the discharging assembly, thereby driving the swinging material receiving plate 507 to swing downward. The swinging material receiving plate 507 swings downward even if the bottom outlet of the drying box 5 is opened, so that the dried material in the drying box 5 falls downward.

[0045] like Figure 7 As shown, the material discharging assembly includes a material discharge push block 2042, a lifting push rod 502 and a return spring 503. The material discharge push block 2042 is fixedly connected to the transmission shaft 2041. The material discharge push block 2042 is located outside the screening frame 1. The lifting push rod 502 is slidably connected to the outside of the screening frame 1. A return spring 503 is provided between the lifting push rod 502 and the screening frame 1. One end of the return spring 503 is fixed to the screening frame 1, and the other end is fixed to the lifting push rod 502. When the lifting push rod 502 rises, it can drive the swinging receiving plate 507 to swing downward through the rotating frame 504.

[0046] When the transmission shaft 2041 rotates, it drives the unloading push block 2042 to rotate. During the rotation of the unloading push block 2042, it contacts the lifting push rod 502 and pushes it to slide upward along the screening frame 1. During the upward sliding process of the lifting push rod 502, the return spring 503 is compressed, and when the lifting push rod 502 rises, it can push the swing receiving plate 507 to swing downward through the rotating frame 504. When the unloading push block 2042 pushes the lifting push rod 502 to rise to the highest point, the material in the drying box 5 can just fall down. As the unloading push block 2042 continues to rotate, the unloading push block 2042 gradually disengages from the lifting push rod 502, and the return spring 503 pushes the lifting push rod 502 to slide downward and reset, and the torsion spring 505 drives the rotating frame 504 and the swing receiving plate 507 to rotate and reset.

[0047] like Figure 3 and Figure 8 As shown, it also includes an L-shaped push plate 105 and a fixed block 506. The L-shaped push plate 105 is slidably connected in the screening frame 1, and the L-shaped push plate 105 is fixedly connected to the screening frame 101. The fixed block 506 is fixedly connected to the rotating frame 504. When the L-shaped push plate 105 rises with the screening frame 1, it can push the rotating frame 504 to rotate through the fixed block 506, and at the same time make the swinging receiving plate 507 swing downward by a certain angle.

[0048] When the screening frame 101 slides upward, the L-shaped push plate 105 will be driven to rise. When the L-shaped push plate 105 rises, it will push the rotating frame 504 to swing upward through the fixed block 506, so as to drive the swinging material receiving plate 507 to swing downward. Moreover, since the upward sliding amplitude of the screening frame 101 is small, when the swinging material receiving plate 507 swings downward, the materials in the drying box 5 will not fall down. When the screening frame 101 slides downward to reset, driven by the torsion spring 505, the swinging material receiving plate 507 will swing upward to reset, and at the same time, the materials in the drying box 5 will be thrown upward to improve the drying effect.

[0049] It should be understood that this embodiment is only used to illustrate the present invention and is not used to limit the scope of the present invention. In addition, it should be understood that after reading the content taught by the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms also fall within the scope limited by the appended claims of the application.

Claims

1. A feeding device for a degradable lunch box, characterized in that: The invention comprises a screening frame (1), a material discharging guide frame (1001), a screening frame (101), a shaking screening mechanism and a cleaning mechanism. The screening frame (1) is fixedly connected with a material discharging guide frame (1001). The screening frame (1) is provided with a screening frame (101). The shaking screening mechanism is installed in the screening frame (1). The shaking screening mechanism is used to drive the screening frame (101) to shake up and down and quickly screen the material. The cleaning mechanism is installed in the screening frame (1). The cleaning mechanism comprises a fixed guide rod (1002), a lifting shaft (206) and a lifting cleaning frame (207). The screening frame (1) is fixedly connected with a fixed guide rod (1002). The fixed guide rod (1002) is slidably connected with a lifting shaft (206). The lifting shaft (206) is slidably connected with a lifting cleaning frame (207). The lifting cleaning frame (207) can clean the screen holes of the screening frame (101) to prevent the screen holes from being blocked by the material.

2. A feeding device for a degradable lunch box as claimed in claim 1, characterized in that: The shaking screening mechanism comprises a shaking motor (102), an eccentric wheel (103) and a shaking spring (104); the shaking motor (102) is installed outside the screening frame (1); the eccentric wheel (103) is rotatably connected inside the screening frame (1); the top of the eccentric wheel (103) contacts the screening frame (101); the output shaft of the shaking motor (102) is fixedly connected to the rotating shaft of the eccentric wheel (103); a shaking spring (104) is arranged between the screening frame (101) and the screening frame (1); when the eccentric wheel (103) rotates, it cooperates with the shaking spring (104) to drive the screening frame (101) to vibrate up and down.

3. A feeding device for a degradable lunch box as claimed in claim 2, characterized in that: The cleaning mechanism comprises a fixed ring (2), a rotating gear ring (201), a sun gear (202), a planetary gear (203), a transmission gear (204), a transmission shaft (2041), a rotating push block (205), a cleaning rod (208) and a moving assembly. The screening frame (1) is fixedly connected to the outside of the fixed ring (2), the fixed ring (2) is rotatably connected to the inside of the fixed ring (2), the eccentric wheel (103) is coaxially fixedly connected to the sun gear (202), the screening frame (1) is rotatably connected to the outside of the planetary gear (203), the planetary gear (203) is meshed with the eccentric wheel (103), the rotating gear ring (201) is provided with teeth inside and outside, and the planetary gear (203) is meshed with the eccentric wheel (103). The rotating gear ring (201) is meshed, a transmission shaft (2041) is rotatably connected to the screening frame (1), a transmission gear (204) is fixedly connected to the transmission shaft (2041), the transmission gear (204) is meshed with the rotating gear ring (201), a rotating push block (205) is fixedly connected to the transmission shaft (2041), a cleaning rod (208) is fixedly connected to the lifting cleaning frame (207), the cleaning rod (208) is aligned with the sieve holes on the screening frame (101), and a moving component is installed on the screening frame (1), and the moving component is used to drive the lifting cleaning frame (207) to move in the screening frame (1) to clean different positions in the screening frame (101).

4. A feeding device for a degradable lunch box as claimed in claim 3, characterized in that: The lifting cleaning frame (207) is half the size of the screening frame (101), and a plurality of through holes are provided on the lifting cleaning frame (207), so that the materials screened by the screening frame (101) fall downward through the through holes on the lifting cleaning frame (207).

5. The feeding device for a degradable lunch box according to claim 3, characterized in that: The moving assembly comprises a U-shaped connecting rod (209), a lifting rack (210), a sliding block (3), a return spring (301), a connecting frame (302), a rotating rod (303) and a rotating gear (304); the lifting shaft (206) is fixedly connected to the U-shaped connecting rod (209); the U-shaped connecting rod (209) is slidably connected to the screening frame (1); the end of the U-shaped connecting rod (209) is fixedly connected to the lifting rack (210); the screening frame (1) is externally rotatably connected to the rotating rod (303); the rotating shaft of the rotating rod (303) is connected to a rotating gear via a one-way bearing. The gear (304) is meshed with the lifting rack (210) and the rotating gear (304). The screening frame (1) is slidably connected with a sliding block (3). The lifting cleaning frame (207) is slidably connected with the sliding block (3). A return spring (301) is provided between the lifting cleaning frame (207) and the sliding block (3). The sliding block (3) is fixedly connected with a connecting frame (302) outside. The connecting frame (302) is provided with a straight groove. One end of the rotating rod (303) away from the rotating gear (304) passes through the straight groove on the connecting frame (302) and is slidably connected with the rotating gear (304).

6. A feeding device for a degradable lunch box as claimed in claim 3, characterized in that: It also includes a shaking screen plate (106), a side baffle (107) and a supporting spring (108); the shaking screen plate (106) is slidably connected inside the screening frame (1); the shaking screen plate (106) and the screening frame (1) are connected via the supporting spring (108); and the side baffles (107) are fixedly connected to both sides of the shaking screen plate (106).

7. A feeding device for a degradable lunch box as claimed in claim 5, characterized in that: The screen frame (1) further comprises a fixed plate (4), a sliding block (401) and a limit spring (402). The fixed plate (4) is fixedly connected to the screening frame (1). The sliding block (401) is slidably connected to the fixed plate (4). The sliding block (401) and the fixed plate (4) are connected via the limit spring (402). The sliding block (401) matches an end of the rotating rod (303) away from the rotating gear (304).

8. The feeding device for a degradable lunch box according to claim 3, characterized in that: The invention also comprises a drying box (5), a drying machine (501), a rotating frame (504), a torsion spring (505), a swinging material receiving plate (507) and a material pushing and discharging assembly. The drying box (5) is fixedly connected to the screening frame (1), the drying box (5) is installed with the drying machine (501), the drying box (5) is rotatably connected with the rotating frame (504) in the drying box (5), the swinging material receiving plate (507) is fixedly connected to the rotating shaft of the rotating frame (504), the rotating frame (504) and the drying box (5) are connected via the torsion spring (505), the material pushing and discharging assembly is installed outside the screening frame (1), and the material pushing and discharging assembly is used to push the swinging material receiving plate (507) to swing downward and make the material in the drying box (5) fall downward.

9. A feeding device for a degradable lunch box as claimed in claim 8, characterized in that: The material discharging push assembly comprises a material discharging push block (2042), a lifting push rod (502) and a return spring (503); the material discharging push block (2042) is fixedly connected to the transmission shaft (2041); the material discharging push block (2042) is located outside the screening frame (1); the lifting push rod (502) is slidably connected to the outside of the screening frame (1); and a return spring (503) is provided between the lifting push rod (502) and the screening frame (1).

10. A feeding device for a degradable lunch box as claimed in claim 8, characterized in that: It also includes an L-shaped push plate (105) and a fixed block (506). The L-shaped push plate (105) is slidably connected inside the screening frame (1), the L-shaped push plate (105) is fixedly connected to the screening frame (101), and the fixed block (506) is fixedly connected to the rotating frame (504).

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