A screening device for food processing

Abstract

The present invention relates to the technical field of screening equipment, and in particular to a screening equipment for food processing, comprising a linear screen, wherein both ends of the inner side of the linear screen are fixedly connected to a top plate, a flip groove is provided at a position between the top end of the linear screen and the top plate, a rotating shaft is rotatably connected in the flip groove, a mounting frame is fixedly connected to the top end of the rotating shaft, a slot is provided on the side wall of the mounting frame, a screen is inserted in the slot, a lower plate is provided next to the screen, and a side plate is fixedly connected to the top end of the mounting frame relative to the position next to the linear screen frame. The present invention can flip the screen 90 degrees and be in a downward vertical state through the arrangement of structures such as a rotating motor, a limiting mechanism and a mesh taking mechanism, and then automatically release the limit of the screen through the mesh taking mechanism, pull out the screen, thereby realizing automatic removal of the screen, and then automatically push the screen to be replaced onto the pulled out lower plate, and squeeze out the original screen, thereby realizing fully automatic replacement of the screen, and can automatically install it back after replacement.

Description

Technical Field

[0001] The present invention relates to the technical field of screening equipment, in particular to a screening equipment for food processing. Background Art

[0002] In the field of food processing, screening equipment is an indispensable component. It is mainly used to screen and grade food raw materials or semi-finished products in the processing process to ensure that the quality and specifications of the food meet production requirements. However, in actual use, existing screening equipment has many problems that need to be solved, especially in the screen replacement process.

[0003] The screen replacement process of traditional screening equipment is extremely cumbersome. When screens of different specifications need to be replaced, workers must first remove the screen limiting structure. This operation not only consumes a lot of time and energy, but also because the screens of linear screening machines are usually long, it is difficult for one worker to complete the replacement work alone. It often requires two workers to work together. They need to lift out the screen and then replace it. The whole process is time-consuming and labor-intensive, which greatly reduces the maintenance efficiency of the equipment and affects the overall progress of food processing and production.

[0004] In order to solve this problem, improve the maintenance efficiency of screening equipment, and reduce the labor intensity of workers, it is particularly urgent to develop a food processing screening equipment that can quickly and conveniently replace the screen. This new equipment should have a simple and easy-to-operate screen replacement mechanism to quickly complete the screen replacement work while ensuring the stability and screening effect of the screen, so as to meet the food processing industry's demand for efficient and convenient production equipment and promote the progress and development of food processing technology. Summary of the Invention

[0005] The purpose of the present invention is to solve the shortcomings of the background technology and to propose a screening device for food processing.

[0006] To achieve the above objectives, the technical solution adopted by the present invention is: a screening equipment for food processing, comprising a linear screen, both ends of the inner side of the linear screen are fixedly connected to a top plate, a flip groove is provided at the position between the top of the linear screen and the top plate, a rotating shaft is rotatably connected in the flip groove, the top of the rotating shaft is fixedly connected to a mounting frame, a slot is provided on the side wall of the mounting frame, a screen is inserted in the slot, a lower plate is provided next to the screen, the top of the mounting frame is fixedly connected to a side plate relative to the position next to the linear screen frame, the side wall of the linear screen is fixedly connected to a rotating motor, the output end of the rotating motor passes through the inner side of the linear screen and is fixedly connected to the side wall of the rotating shaft, a limiting mechanism for limiting the position of the lower plate is provided on the mounting frame, and the legs of the linear screen are fixedly connected to a lifting frame on the side close to each other, and the lifting frame is provided with a net taking mechanism for taking out the screen.

[0007] In the above technical solution, further, the top of the installation frame is flush with the top of the top plate relative to the top plate, the top of the screen is flush with the top of the top plate, and the two ends of the screen away from the lower plate are inclined.

[0008] In the above technical solution, further, the top of the installation frame is fixedly connected with upper inclined blocks at both ends of the inner side of the linear screen, the two sides of the top of the top plate away from the discharge port are fixedly connected with lower inclined blocks, and the bottom of the installation frame is fixedly connected with a blocking cloth relative to the position next to the flip groove.

[0009] In the above technical solution, further, the limiting mechanism includes an upper right-angle block with an inclined surface, and both sides of the lower plate are fixedly connected with an insertion rod, and both sides of the outer wall of the mounting frame are fixedly connected to the limiting frame, the insertion rod is inserted into the inner side of the limiting frame, and the side walls of the insertion rod are provided with a groove, and the upper right-angle blocks are slidably connected to the inner side of the groove, and the inner side of the limiting frame is longitudinally slidably connected with a slide, and the side walls of the slide are fixedly connected with several lower right-angle blocks with inclined surfaces, and the inclined surface of one of the lower right-angle blocks is fitted with the inclined surface of the upper right-angle block, and a T-slot is provided through the top of the screen, and a pair of upper T-blocks are fixedly connected to the side walls of the lower plate, and the upper T-blocks are inserted in the T-slot.

[0010] In the above technical solution, further, an upper spring is fixedly connected between the inner side of the groove and the side wall of the upper right-angle block, a pair of lower springs are fixedly connected between the top inner side of the limit frame and the top end of the slide, a release rod is fixedly connected to the side wall of the slide, and the side end of the release rod is set to a smooth arc surface.

[0011] In the above technical solution, further, the net-taking mechanism includes an upper electromagnet, and the upper electromagnet is provided with a pair. The upper electromagnets are both arranged on the side wall of the lifting frame, and the top of the upper electromagnet is provided with a top groove adapted to the lower plate. The upper electromagnet is fixedly connected to a movable plate on the side away from the upper electromagnet, and a release groove is provided on the top of the upper electromagnet. A release right-angle block with an inclined surface is provided in the release groove, and the bottom end of the upper electromagnet is fixedly connected to an upper electric telescopic cylinder, and the output end of the upper electric telescopic cylinder is fixedly connected to the bottom end of the release right-angle block. A screw is rotatably connected to the inner side of the lifting frame, and a drive motor is fixedly connected to the top of the lifting frame. The output end of the drive motor passes through the inner side of the lifting frame and is fixedly connected to the top of the screw. The lifting frame is tilted, and the lifting frame is perpendicular to the inclined frame of the linear screen.

[0012] In the above technical solution, further, the movable plates are all slidably connected to the inner side of the lifting frame, the side walls of the upper electromagnet are fixedly connected to a pair of straight rods, the screw rods are threadedly connected to the inner side walls of the movable plates, the top ends of the straight rods are fixedly connected to inclined rods inclined to both sides, the bottom end of the screen frame of the linear screen is fixedly connected to the bottom plate, and the side walls of the bottom plate are fixedly connected to round rods at an upper position relative to the straight rods.

[0013] In the above technical solution, further, a changing table is fixedly connected between the lifting frames, the top of the changing table is tilted, side grooves are provided on both sides of the top of the changing table, a lower groove adapted to the lower plate is provided on the top of the changing table, a pair of lower T-blocks are fixedly connected on both sides of the top of the changing table, the side walls of the changing table are fixedly connected to vertical plates, a storage groove is provided through the side walls of the vertical plates, a lower electromagnet is provided in the storage groove, a lower electric telescopic cylinder is fixedly connected to the side walls of the vertical plates, and the output end of the lower electric telescopic cylinder is fixedly connected to the side walls of the lower electromagnet.

[0014] In the above technical solution, further, the lower T-shaped blocks are arranged at both sides of the side groove, and the side walls of the lower T-shaped blocks away from the vertical plate are connected to the limit plates by bolts.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. The present invention can flip the screen 90 degrees and put it in a downward vertical state through the arrangement of structures such as a rotating motor, a limiting mechanism and a mesh taking mechanism. Then, the limit of the screen is automatically released by the mesh taking mechanism, and the screen is pulled out, thereby realizing automatic removal of the screen and being able to automatically install it back after replacement, greatly improving the convenience of the device.

[0017] 2. The present invention can automatically push the screen that needs to be replaced onto the withdrawn lower plate and squeeze out the original screen through the arrangement of the lower electric telescopic cylinder and the lower electromagnet and other structures, thereby realizing fully automatic replacement of the screen and greatly improving the convenience of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the overall appearance of the screening equipment of the present invention;

[0019] Figure 2 The appended Figure 1 A schematic diagram of the partially enlarged structure at center A;

[0020] Figure 3 This is a schematic diagram of the three-dimensional structure of the linear screen and the mounting frame separated according to the present invention;

[0021] Figure 4 The appended Figure 3 A schematic diagram of the partially enlarged structure at point B in the middle;

[0022] Figure 5 It is a partial bottom-up schematic diagram of the three-dimensional structure of the linear screen and the replacement platform of the present invention;

[0023] Figure 6 This is a schematic diagram of the partial appearance of the lifting frame of the present invention;

[0024] Figure 7 This is a schematic diagram of the overall appearance of the mounting frame of the present invention when the screen is pulled out;

[0025] Figure 8 This is a schematic diagram of the separated three-dimensional structure of the insertion rod, the upper right-angle block, the lower right-angle block and the limit frame of the present invention;

[0026] Figure 9 It is a schematic diagram of the three-dimensional structure of the upper electromagnet and the lifting right-angle block separated according to the present invention.

[0027] Figure: 1, linear screen; 2, top plate; 3, flip trough; 4, rotating shaft; 5, mounting frame; 6, screen; 7, lower plate; 8, side plate; 9, rotating motor; 10, lifting frame; 11, upper inclined block; 12, lower inclined block; 13, cloth stop; 14, upper right-angle block; 15, limit frame; 16, slide plate; 17, lower right-angle block; 18, upper T-block; 19, upper spring; 20, lower spring; 21 , release rod; 22, upper electromagnet; 23, top groove; 24, moving plate; 25, release right-angle block; 26, upper electric telescopic cylinder; 27, screw; 28, drive motor; 29, straight rod; 30, oblique rod; 31, bottom plate; 32, round rod; 33, changing table; 34, lower T-block; 35, vertical plate; 36, lower electromagnet; 37, lower electric telescopic cylinder; 38, limit plate; 39, insertion rod. DETAILED DESCRIPTION

[0028] In order to more clearly understand the above-mentioned objects, features and advantages of the present invention, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0029] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0030] In actual use, it is found that when it is necessary to replace the screen 6 of different specifications, the workers must first remove the limiting structure of the screen 6. This operation not only consumes a lot of time and energy, but also because the screen 6 of the linear screening machine is usually long, it is difficult for one worker to complete the replacement work alone. It often requires two workers to work together. They need to lift out the screen 6 and then replace it. The whole process is time-consuming and labor-intensive, which greatly reduces the maintenance efficiency of the equipment and affects the overall progress of food processing and production. In order to solve the above problems, the following structure is specially invented.

[0031] like Figures 1-9The food processing screening equipment shown in the figure includes a linear screen 1, both ends of the inner side of the linear screen 1 are fixedly connected to a top plate 2, a flip groove 3 is opened at a position between the top of the linear screen 1 and the top plate 2, a rotating shaft 4 is rotatably connected in the flip groove 3, a mounting frame 5 is fixedly connected to the top of the rotating shaft 4, a slot is opened on the side wall of the mounting frame 5, a screen 6 is inserted in the slot, a lower plate 7 is provided next to the screen 6, a side plate 8 is fixedly connected to the top of the mounting frame 5 relative to the position next to the frame of the linear screen 1, a rotating motor 9 is fixedly connected to the side wall of the linear screen 1, an output end of the rotating motor 9 passes through the inner side of the linear screen 1 and is fixedly connected to the side wall of the rotating shaft 4, a limiting mechanism for limiting the position of the lower plate 7 is provided on the mounting frame 5, and a lifting frame 10 is fixedly connected to the side close to the legs of the linear screen 1, and the lifting frame 10 is provided with a net taking mechanism for taking out the screen 6;

[0032] The limiting mechanism includes an upper right-angle block 14 with an inclined surface, and both sides of the lower plate 7 are fixedly connected to an insertion rod 39. Both sides of the outer wall of the mounting frame 5 are fixedly connected to a limit frame 15, and the insertion rod 39 is inserted into the inner side of the limit frame 15. The side wall of the insertion rod 39 is provided with a groove. The upper right-angle blocks 14 are slidably connected to the inner side of the groove. The inner side of the limit frame 15 is longitudinally slidably connected to a slide plate 16. The side wall of the slide plate 16 is fixedly connected to a number of lower right-angle blocks 17 with inclined surfaces, and the inclined surface of one of the lower right-angle blocks 17 is fitted with the inclined surface of the upper right-angle block 14. A T-slot is provided through the top of the screen 6, and a pair of upper T-blocks 18 are fixedly connected to the side wall of the lower plate 7. The upper T-block 18 is inserted into the T-slot;

[0033] An upper spring 19 is fixedly connected between the inner side of the groove and the side wall of the upper right-angle block 14. A pair of lower springs 20 are fixedly connected between the top of the limit frame 15 and the top of the slide 16. A release rod 21 is fixedly connected to the side wall of the slide 16. The side end of the release rod 21 is set to a smooth arc surface.

[0034] The net-taking mechanism includes an upper electromagnet 22, a pair of which are provided. The upper electromagnets 22 are all provided on the side wall of the lifting frame 10. The top of the upper electromagnet 22 is provided with a top groove 23 adapted to the lower plate 7 (it should be noted that the upper electromagnet 22 has a magnetic attraction function only at the top groove 23). The upper electromagnet 22 is fixedly connected to a movable plate 24 on one side away from the upper electromagnet 22. A release groove is provided on the top of the upper electromagnet 22, and a release right-angle block 25 with an inclined surface is provided in the release groove. The bottom of the upper electromagnet 22 is fixedly connected to an upper electric telescopic cylinder 26. The upper electric telescopic cylinder 26 The output end is fixedly connected to the bottom end of the right-angle block 25, and the inner side of the lifting frame 10 is rotatably connected to the screw 27. The top of the lifting frame 10 is fixedly connected to the drive motor 28. The output end of the drive motor 28 passes through the inner side of the lifting frame 10 and is fixedly connected to the top of the screw 27. The lifting frame 10 is tilted, and the lifting frame 10 is perpendicular to the tilted frame of the linear screen 1. The screen frame of the linear screen 1 is designed to be tilted, and the material rolls down by its own gravity. Therefore, the net-taking mechanism is also tilted and perpendicular to the screen frame, thereby ensuring the normal replacement of the inclined screen 6;

[0035] The movable plates 24 are all slidably connected to the inner side of the lifting frame 10, and a pair of straight rods 29 are fixedly connected to the side walls of the upper electromagnet 22. The screws 27 are threadedly connected to the inner wall of the movable plate 24. The tops of the straight rods 29 are fixedly connected to inclined rods 30 inclined to both sides. The bottom end of the screen frame of the linear screen 1 is fixedly connected to the bottom plate 31, and the side walls of the bottom plate 31 are fixedly connected to the upper position between the straight rods 29. The round rods 32 are fixedly connected by the arrangement of the inclined rods 30 and the straight rods 29 to ensure that the top groove 23 of the upper electromagnet 22 is stuck on both sides of the lower plate 7. Since the screen frame of the linear screen 1 is mounted on the support legs through springs, During operation, it is inevitable that the mounting frame 5 and the upper electromagnet 22 will be misaligned (it should be noted that the vibration screening method of the linear screen 1 is lateral movement screening, and there are limit devices on the legs to limit the movement of the screen in other directions, so that there will be no deviation in other directions). Then, the round rods 32 on the screen frame of the linear screen 1 are squeezed by the inclined rods 30, and then the round rods 32 are squeezed between the straight rods 29. In this process, the screen frame of the linear screen 1 is moved by squeezing the round rods 32, and then the mounting frame 5 is squeezed to the replacement position to ensure the accurate docking of the subsequent top groove 23 with the lower plate 7.

[0036] When it is necessary to replace the screen 6 of different specifications, first control the rotating motor 9 to start and drive the rotating shaft 4 to rotate, and at the same time drive the mounting frame 5 and the screen 6 to rotate, so that the lower plate 7 is turned downward 90 degrees, and then the driving motor 28 can be controlled to start and drive the screw 27 to rotate, thereby driving the threaded movable plate 24 to move in the lifting frame 10, and at the same time drive the upper electromagnet 22 to move upward, and then the top groove 23 on the upper electromagnet 22 is stuck on the lower plate 7, and at the same time the release rod 21 moves into the release groove, and the side of the release rod 21 is released. The end is located on the inclined surface of the releasing right-angle block 25, and then the upper electric telescopic cylinder 26 is controlled to start and drive the releasing right-angle block 25 to move upward, and then the releasing rod 21 is gradually squeezed by the inclined surface of the releasing right-angle block 25 to slide horizontally, and at the same time, the slide plate 16 is driven to slide in the limit frame 15, and the lower right-angle block 17 is driven to move away from the upper right-angle block 14, and the lower spring 20 is compressed at the same time, thereby releasing the position restriction of the lower plate 7, and then the upper electromagnet 22 can be controlled to be energized to attract the lower plate 7 (it should be noted here that the lower plate 7 is made of iron);

[0037] Then the drive motor 28 can be controlled to start reversing, thereby driving the upper electromagnet 22 and the movable plate 24 to move downward, and at the same time driving the lower plate 7 and the screen 6 of the limit release to be pulled out from the mounting frame 5. During this process, the releasing right-angle block 25 will gradually move away from the releasing rod 21, and then gradually release the squeezing of the releasing rod 21, and push the slide plate 16 and the lower right-angle block 17 to reset under the elastic force of the lower spring 20. However, at this time, the upper right-angle block 14 has been removed from the limit frame 15 and will not affect the movement of the lower plate 7. Finally, the screen 6 can be completely pulled out from the mounting frame 5.

[0038] To sum up, through the design of the above structure, the screen 6 can be flipped 90 degrees and placed in a downward vertical state. Then, the limit of the screen 6 can be automatically released through the net-taking mechanism, and the screen 6 can be pulled out, thereby realizing the automatic removal of the screen 6, and it can be automatically installed back after replacement, greatly improving the convenience of the device.

[0039] Based on the above embodiment, it was found during use that when the screen 6 was designed to be flipped, there would be gaps in some places, causing the screened material to fall directly, affecting the normal operation of the equipment. In order to solve the above problem, the above structure was further improved.

[0040] In order to ensure stability during the operation, the top of the mounting frame 5 is flush with the top of the top plate 2 relative to the top plate 2, the top of the screen 6 is flush with the top of the top plate 2, and the two ends of the screen 6 away from the lower plate 7 are inclined. If the screen frame of the linear screen 1 is in a deviated state when the screen 6 is inserted, the mounting frame 5 will also be misaligned with the lower screen 6. Therefore, during the insertion of the screen 6, the mounting frame 5 can be squeezed by the inclined surface of the screen 6, so that the screen frame of the linear screen 1 can be moved, thereby ensuring that the screen 6 can be accurately inserted into the mounting frame 5.

[0041] The top of the mounting frame 5 is fixedly connected to the two ends of the inner side of the linear screen 1 with upper inclined blocks 11, and the two sides of the top of the top plate 2 away from the discharge port are fixedly connected with lower inclined blocks 12. The setting of the upper inclined blocks 11 and the lower inclined blocks 12 can prevent the screened food from being discharged directly without passing over the screen 6, thereby playing a role in shielding and diverting. The bottom end of the mounting frame 5 is fixedly connected to the position next to the flip groove 3 with a blocking cloth 13. Through the setting of the blocking cloth 13, the flip groove 3 can be shielded to prevent the screened material from leaking out of the flip groove 3, thereby improving the stability of the equipment during operation.

[0042] In summary, through the design of the above structure, the periphery of the flip-type screen 6 can be shielded without hindering the normal flipping of the screen 6, thereby ensuring the normal operation of the linear screen 1.

[0043] On the basis of the above embodiment, it was found during use that although the limit of the screen 6 could be automatically released and the screen 6 could be pulled out, it was still necessary to manually pull out the screen 6 and replace it with a screen 6 of the required specifications, which was quite troublesome. In order to solve the above problem, the above structure was further improved.

[0044] A changing table 33 is fixedly connected between the lifting frames 10. The top of the changing table 33 is tilted. Side grooves are provided on both sides of the top of the changing table 33. A lower groove adapted to the lower plate 7 is provided on the top of the changing table 33. A pair of lower T-blocks 34 are fixedly connected to both sides of the top of the changing table 33. A vertical plate 35 is fixedly connected to the side wall of the changing table 33. A storage groove is provided through the side wall of the vertical plate 35. A lower electromagnet 36 is provided in the storage groove. A lower electric telescopic cylinder 37 is fixedly connected to the side wall of the vertical plate 35. The output end of the lower electric telescopic cylinder 37 is fixedly connected to the side wall of the lower electromagnet 36.

[0045] The lower T-shaped blocks 34 are arranged on both sides of the side grooves, and the side walls of the lower T-shaped blocks 34 away from the side of the vertical plate 35 are connected to the limit plates 38 by bolts. The setting of the limit plates 38 can limit the pushed-out screen 6. If you want to replace the screen 6 on the lower T-shaped block 34, first remove the bolts on the limit plates 38, take out the limit plates 38, then you can pull out the screen 6 on the lower T-shaped block 34, then insert the screen 6 you want to replace, and install the limit plates 38 back.

[0046] Before use, first remove the limit plate 38, insert the screen 6 to be replaced on the lower T-block 34, and then install the limit plate 38 back. Then control the lower electric telescopic cylinder 37 to start, drive the lower electromagnet 36 to extend, and control the lower electromagnet 36 to energize and adsorb the screen 6 (it should be noted that the screen 6 is made of iron), so that the installed screen 6 is pulled onto the other pair of lower T-blocks 34. Then, when the mesh taking mechanism extracts the screen 6 and the lower plate 7 from the installation frame 5, the upper electromagnet 22 moves to the side groove, and the lower plate 7 moves to the lower groove. When the bottom end of the screen 6 is flush with the top end of the replacement table 33, the lower electric telescopic cylinder 37 can be controlled to start and drive the lower electromagnet 36 to move. The lower electromagnet 36 pushes the screen 6 on the lower T-block 34 to squeeze the screen 6 on the upper T-block 18. After the removed screen 6 is squeezed onto the other pair of lower T-blocks 34, the lower electric telescopic cylinder 37 drives the lower electromagnet 36 to move in the opposite direction, thereby completely moving the replaced screen 6 onto the upper T-block 18 and pushing the removed screen 6 to the outside of the upper electromagnet 22 to avoid affecting the subsequent normal installation.

[0047] Then the power supply of the lower electromagnet 36 can be turned off, and the lower electric telescopic cylinder 37 drives the lower electromagnet 36 to reset, and the drive motor 28 can be controlled to rotate forward to drive the lower plate 7 and the screen 6 to move upward and insert it back into the installation frame 5. In this process, the screen 6 will be inserted into the installation frame 5 first, and then the upper right-angle block 14 on the insertion rod 39 will be inserted into the limit frame 15, followed by the upper right-angle block 14 moving to the side of the lower right-angle block 17, and then under the extrusion of the inclined surface of the lower right-angle block 17, the upper right-angle block 14 will be pushed to slide into the groove and compress the upper spring 19. Subsequently, when the upper right-angle block 14 is removed from the lower right-angle block 17 and the extrusion is released, it will be pushed to reset under the elastic force of the upper spring 19, and so on and so forth until the screen 6 is tightly inserted into the installation frame 5, and at this time the upper right-angle block 14 is stuck on the side wall of one of the lower right-angle blocks 17, limiting the sliding position of the lower plate 7.

[0048] After the installation is finally completed, the rotary motor 9 is controlled to reverse and drive the installation frame 5 to flip and reset. At the same time, the lower electric telescopic cylinder 37 is controlled to start, the lower electromagnet 36 is moved to the side of the removed screen 6, and the lower electromagnet 36 is controlled to be energized to adsorb the screen 6 and pull the screen 6 to the side of another pair of lower T-blocks 34.

[0049] In summary, through the design of the above structure, the screen 6 that needs to be replaced can be automatically pushed onto the withdrawn lower plate 7, and the original screen 6 can be squeezed out, thereby realizing fully automatic replacement of the screen 6, greatly improving the convenience performance of the device.

[0050] The basic principles, main features and advantages of the present invention are shown and described above.

[0051] Those skilled in the art should understand that the present invention is not limited to the above-mentioned embodiments. The above-mentioned embodiments and the specification only describe the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. These changes and improvements all fall within the scope of the present invention to be protected.

Claims

1. A screening device for food processing, comprising a linear screen (1), characterized in that: Both ends of the inner side of the linear screen (1) are fixedly connected to a top plate (2), a turning groove (3) is provided at a position between the top of the linear screen (1) and the top plate (2), a rotating shaft (4) is rotatably connected in the turning groove (3), a mounting frame (5) is fixedly connected to the top of the rotating shaft (4), a slot is provided on the side wall of the mounting frame (5), a screen (6) is inserted in the slot, a lower plate (7) is provided next to the screen (6), a side plate (8) is fixedly connected to the top of the mounting frame (5) relative to the position next to the linear screen (1) frame, a rotating motor (9) is fixedly connected to the side wall of the linear screen (1), an output end of the rotating motor (9) passes through the inner side of the linear screen (1) and is fixedly connected to the side wall of the rotating shaft (4), a limiting mechanism for limiting the position of the lower plate (7) is provided on the mounting frame (5), a lifting frame (10) is fixedly connected to the side of the legs of the linear screen (1), and a mesh taking mechanism for taking out the screen (6) is provided on the lifting frame (10); The limiting mechanism comprises an upper right-angle block (14) with an inclined surface, and both sides of the lower plate (7) are fixedly connected with an insertion rod (39), and both sides of the outer wall of the installation frame (5) are fixedly connected to the limiting frame (15), and the insertion rod (39) is inserted into the inner side of the limiting frame (15), and the side wall of the insertion rod (39) is provided with a groove, and the upper right-angle block (14) is slidably connected to the inner side of the groove, and the inner side of the limiting frame (15) is longitudinally slidably connected with a slide plate (16), and the side wall of the slide plate (16) is fixedly connected with a plurality of lower right-angle blocks (17) with inclined surfaces, and the inclined surface of one of the lower right-angle blocks (17) is fitted with the inclined surface of the upper right-angle block (14), and a T-slot is provided through the top of the screen (6), and a pair of upper T-blocks (18) are fixedly connected to the side wall of the lower plate (7), and the upper T-blocks (18) are inserted into the T-slot; An upper spring (19) is fixedly connected between the inner side of the groove and the side wall of the upper right-angle block (14); a pair of lower springs (20) are fixedly connected between the inner top of the limit frame (15) and the top of the slide plate (16); a release rod (21) is fixedly connected to the side wall of the slide plate (16); and the side end of the release rod (21) is set to a smooth arc surface; The net taking mechanism includes an upper electromagnet (22), a pair of the upper electromagnets (22) are provided, and the upper electromagnets (22) are both provided on the side wall of the lifting frame (10). The top of the upper electromagnet (22) is provided with a top groove (23) adapted to the lower plate (7), and the side away from the upper electromagnet (22) is fixedly connected to a movable plate (24). The top of the upper electromagnet (22) is provided with a release groove, and a release right-angle block (25) with an inclined surface is provided in the release groove. The bottom of the upper electromagnet (22) is fixed. An upper electric telescopic cylinder (26) is fixedly connected, and the output end of the upper electric telescopic cylinder (26) is fixedly connected to the bottom end of the right-angle release block (25). The inner side of the lifting frame (10) is rotatably connected to a screw rod (27). The top of the lifting frame (10) is fixedly connected to a drive motor (28). The output end of the drive motor (28) passes through the inner side of the lifting frame (10) and is fixedly connected to the top end of the screw rod (27). The lifting frame (10) is tilted, and the lifting frame (10) is perpendicular to the tilted frame of the linear screen (1).

2. A food processing screening device according to claim 1, characterized in that: The top of the mounting frame (5) is flush with the top of the top plate (2) relative to the top plate (2), the top of the screen (6) is flush with the top of the top plate (2), and the two ends of the screen (6) away from the lower plate (7) are inclined.

3. The food processing screening device according to claim 1, characterized in that: The top end of the mounting frame (5) is fixedly connected to upper inclined blocks (11) at both ends of the inner side of the linear screen (1), and lower inclined blocks (12) are fixedly connected to both sides of the top end of the top plate (2) away from the discharge port. The bottom end of the mounting frame (5) is fixedly connected to a stop cloth (13) at a position next to the flip groove (3).

4. The food processing screening device according to claim 1, characterized in that: The movable plates (24) are all slidably connected to the inner side of the lifting frame (10), the side walls of the upper electromagnet (22) are fixedly connected to a pair of straight rods (29), the screw rods (27) are threadedly connected to the inner side wall of the movable plate (24), the top ends of the straight rods (29) are fixedly connected to inclined rods (30) inclined to both sides, the bottom end of the screen frame of the linear screen (1) is fixedly connected to a bottom plate (31), and the side walls of the bottom plate (31) are fixedly connected to a round rod (32) at an upper position relative to the straight rods (29).

5. The food processing screening device according to claim 1, characterized in that: A replacement table (33) is fixedly connected between the lifting frames (10), the top of the replacement table (33) is tilted, side grooves are provided on both sides of the top of the replacement table (33), a lower groove adapted to the lower plate (7) is provided on the top of the replacement table (33), a pair of lower T-shaped blocks (34) are fixedly connected on both sides of the top of the replacement table (33), a vertical plate (35) is fixedly connected to the side wall of the replacement table (33), a storage groove is provided through the side wall of the vertical plate (35), a lower electromagnet (36) is provided in the storage groove, a lower electric telescopic cylinder (37) is fixedly connected to the side wall of the vertical plate (35), and an output end of the lower electric telescopic cylinder (37) is fixedly connected to the side wall of the lower electromagnet (36).

6. The food processing screening device according to claim 5, characterized in that: The lower T-shaped blocks (34) are arranged at both sides of the side groove, and the side walls of the lower T-shaped blocks (34) away from the vertical plate (35) are connected to the limiting plates (38) by bolts.

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