Screening equipment for food processing

Abstract

The invention relates to the technical field of screening equipment, in particular to food processing screening equipment which comprises a linear screen, top plates are fixedly connected to the two ends of the inner side of the linear screen, an overturning groove is formed in the position, relative to the top plates, of the top end of the linear screen, a rotating shaft is rotationally connected into the overturning groove, and a mounting frame is fixedly connected to the top end of the rotating shaft. The side wall of the mounting frame is provided with an inserting groove, a screen is inserted into the inserting groove, a lower plate is arranged beside the screen, and a side plate is fixedly connected to the position, opposite to the side of the linear screen frame, of the top end of the mounting frame. And then the screen taking mechanism automatically relieves limiting of the screen and draws out the screen, then automatic dismounting of the screen is achieved, then the screen needing to be replaced is automatically pushed to the drawn-out lower plate, the original screen is extruded out, then full-automatic replacement of the screen is achieved, and the screen can be automatically installed back after being replaced.

Description

Technical Field

[0001] The present invention relates to the technical field of screening equipment, and particularly 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 for screening, grading, etc. of food raw materials or semi-finished products during the processing process to ensure that the quality and specifications of the food meet the production requirements. However, in the actual use process of the existing screening equipment, especially in the screen replacement link, there are many problems to be solved urgently.

[0003] The screen replacement process of traditional screening equipment is extremely cumbersome. When different specifications of screens need to be replaced, workers must first remove the screen limiting structure. This operation not only takes a lot of time and energy, but also because the screens of linear screening machines usually have a long length, it is difficult for a single worker to complete the replacement work. Often, two workers need to cooperate. They need to lift out the screen and then replace it. The whole process is time-consuming and laborious, greatly reducing the equipment maintenance efficiency and affecting the overall progress of food processing production.

[0004] 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 replace the screen quickly and conveniently. This new type of equipment should have a simple and easy-to-operate screen replacement mechanism to quickly complete the screen replacement work, while ensuring the stability of the screen and the screening effect, so as to meet the needs of the food processing industry 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 in the background art and propose a screening equipment for food processing.

[0006] To achieve the above object, the technical solution adopted by the present invention is: a screening equipment for food processing, including a linear screen. Both ends of the inner side of the linear screen are fixedly connected with top plates. A flipping groove is opened at the position between the top of the linear screen and the top plates. A rotating shaft is rotatably connected in the flipping groove. The top of the rotating shaft is fixedly connected with a mounting frame. A slot is opened on the side wall of the mounting frame. A screen is inserted into the slot. A lower plate is arranged beside the screen. A side plate is fixedly connected to the position beside the linear screen frame at the top of the mounting frame. A rotating motor is fixedly connected to the side wall of the linear screen. 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 restricting the position of the lower plate is arranged on the mounting frame. A lifting frame is fixedly connected to the side of the legs of the linear screen close to each other. A screen taking mechanism for taking out the screen is arranged on the lifting frame.

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

[0008] In the above technical solution, further, upper inclined blocks are fixedly connected to both inner ends of the installation frame relative to the straight screen, lower inclined blocks are fixedly connected to both sides of the top end of the top plate on the side away from the discharge port, and a cloth baffle is fixedly connected to the position of the bottom end of the installation frame beside the flipping groove.

[0009] In the above technical solution, further, the limiting mechanism includes upper right-angle blocks with inclined surfaces. Plug rods are fixedly connected to both sides of the lower plate. Limiting frames are fixedly connected to both outer walls of the installation frame. The plug rods are inserted into the inner sides of the limiting frames. Grooves are formed in the side walls of the plug rods. The upper right-angle blocks are all slidably connected to the inner sides of the grooves. A sliding plate is longitudinally slidably connected to the inner side of the limiting frame. A plurality of lower right-angle blocks with inclined surfaces are fixedly connected to the side wall of the sliding plate. The inclined surface of one of the lower right-angle blocks is in contact with the inclined surface of the upper right-angle block. T-shaped grooves are formed through the top end of the screen. A pair of upper T-shaped blocks are fixedly connected to the side wall of the lower plate. The upper T-shaped blocks are inserted into the T-shaped grooves.

[0010] In the above technical solution, further, upper springs are fixedly connected between the inner sides of the grooves and the side walls of the upper right-angle blocks. A pair of lower springs are fixedly connected between the top end of the inner top of the limiting frame and the top end of the sliding plate. A release rod is fixedly connected to the side wall of the sliding plate. The side end of the release rod is provided with a smooth arc surface.

[0011] In the above technical solution, further, the screen-taking mechanism includes upper electromagnets. There are a pair of upper electromagnets. The upper electromagnets are all arranged on the side walls of the lifting frame. Top grooves adapted to the lower plate are formed at the top ends of the upper electromagnets. Moving plates are fixedly connected to the sides of the upper electromagnets away from each other. Release grooves are formed at the top ends of the upper electromagnets. Release right-angle blocks with inclined surfaces are arranged in the release grooves. Upper electric telescopic cylinders are fixedly connected to the bottom ends of the upper electromagnets. The output ends of the upper electric telescopic cylinders are fixedly connected to the bottom ends of the release right-angle blocks. A screw rod is rotatably connected to the inner side of the lifting frame. A driving motor is fixedly connected to the top end of the lifting frame. The output end of the driving motor passes through the inner side of the lifting frame and is fixedly connected to the top end of the screw rod. The lifting frame is inclined, and the lifting frame is perpendicular to the inclined frame body of the straight screen.

[0012] In the above technical solution, further, the moving plates are all slidably connected to the inner side of the lifting frame. A pair of straight rods are fixedly connected to the side walls of the upper electromagnets. The screw rod passes through and is threadedly connected to the inner side walls of the moving plates. Oblique rods inclined to both sides are fixedly connected to the top ends of the straight rods. A bottom plate is fixedly connected to the bottom end of the screen frame of the straight screen. A round rod is fixedly connected to the side wall of the bottom plate at a position above the straight rods.

[0013] In the above technical solution, further, a replacement table is fixedly connected between the lifting frames. The top end of the replacement table is inclined. Side grooves are formed on both sides of the top end of the replacement table. A lower groove adapted to the lower plate is formed at the top end of the replacement table. A pair of lower T-shaped blocks are fixedly connected to both sides of the top end of the replacement table. A vertical plate is fixedly connected to the side wall of the replacement table. A storage groove is formed through the side wall of the vertical plate. A lower electromagnet is arranged in the storage groove. A lower electric telescopic cylinder is fixedly connected to the side wall of the vertical plate. The output end of the lower electric telescopic cylinder is fixedly connected to the side wall of the lower electromagnet.

[0014] In the above technical solution, further, the lower T-shaped blocks are arranged on both sides of the side grooves. Limiting plates are connected to the side walls of the lower T-shaped blocks far from the vertical plate by bolts.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. Through the arrangement of structures such as a rotating motor, a limiting mechanism, and a screen taking mechanism, the present invention can flip the screen by 90 degrees to a vertically downward state, and then automatically release the limit of the screen through the screen taking mechanism and draw out the screen, thereby realizing the automatic removal of the screen and being able to automatically install it back after replacement, greatly improving the convenience performance of the device.

[0016] 2. Through the arrangement of structures such as a lower electric telescopic cylinder and a lower electromagnet, the present invention can automatically push the screen to be replaced onto the drawn lower plate and squeeze out the original screen, thereby realizing the full-automatic replacement of the screen and greatly improving the convenience performance of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic diagram of the overall external structure of the screening equipment of the present invention; Figure 2 is an enlarged partial structure schematic diagram at A in the present invention; Figure 1 is a schematic diagram of the separated three-dimensional structure of the linear screen and the installation frame of the present invention; Figure 3 is an enlarged partial structure schematic diagram at B in the present invention; Figure 4 is a partial bottom-up three-dimensional structure schematic diagram of the linear screen and the replacement table of the present invention; Figure 3 is an enlarged partial structure schematic diagram at B in the present invention; Figure 5 is a partial bottom-up three-dimensional structure schematic diagram of the linear screen and the replacement table of the present invention; Figure 6 is a partial external three-dimensional structure schematic diagram of the lifting frame of the present invention; Figure 7 is a schematic diagram of the overall external structure when the screen on the installation frame of the present invention is drawn out; Figure 8Schematic diagram of the separated three-dimensional structure of the insertion rod, upper right-angle block, lower right-angle block and limit frame of the present invention; Figure 9 Schematic diagram of the separated three-dimensional structure of the upper electromagnet and release right-angle block of the present invention.

[0018] In the figure: 1, straight-line sieve; 2, top plate; 3, flipping groove; 4, rotating shaft; 5, mounting frame; 6, sieve mesh; 7, lower plate; 8, side plate; 9, rotating motor; 10, lifting frame; 11, upper inclined block; 12, lower inclined block; 13, baffle cloth; 14, upper right-angle block; 15, limit frame; 16, sliding plate; 17, lower right-angle block; 18, upper T-shaped 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 rod; 28, driving motor; 29, straight rod; 30, inclined rod; 31, bottom plate; 32, round rod; 33, replacement table; 34, lower T-shaped block; 35, vertical plate; 36, lower electromagnet; 37, lower electric telescopic cylinder; 38, limit plate; 39, insertion rod. Detailed implementation manners

[0019] In order to more clearly understand the above-mentioned objects, features and advantages of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific implementation manners.

[0020] In the following description, many specific details are set forth in order to fully understand the present invention. However, the present invention can also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the limitations of the specific embodiments disclosed below.

[0021] In actual use, it is found that when it is necessary to replace the sieve mesh 6 of different specifications, workers must first remove the limit structure of the sieve mesh 6. This operation not only takes a lot of time and effort, but also because the sieve mesh 6 of the straight-line screening machine usually has a long length, it is difficult for a single worker to complete the replacement work. Often, two workers need to cooperate. They need to lift out the sieve mesh 6 and then replace it. The whole process is time-consuming and laborious, greatly reducing the maintenance efficiency of the equipment and affecting the overall progress of food processing production. To solve the above problems, the following structure is specifically invented.

[0022] As Figures 1-9A screening device for food processing as shown, including a linear screen 1. Both ends inside the linear screen 1 are fixedly connected with top plates 2. A flipping groove 3 is opened at the position between the top of the linear screen 1 and the top plates 2. A rotating shaft 4 is rotatably connected inside the flipping groove 3. The top of the rotating shaft 4 is fixedly connected with a mounting frame 5. A slot is opened on the side wall of the mounting frame 5, and a screen mesh 6 is inserted into the slot. A lower plate 7 is arranged beside the screen mesh 6. The top of the mounting frame 5 is fixedly connected with a side plate 8 at the position beside the frame of the linear screen 1. A rotating motor 9 is fixedly connected to the side wall of the linear screen 1. The output end of the rotating motor 9 passes through the inside of the linear screen 1 and is fixedly connected to the side wall of the rotating shaft 4. A limiting mechanism for restricting the position of the lower plate 7 is arranged on the mounting frame 5. On the side of the legs of the linear screen 1 close to each other, a lifting frame 10 is fixedly connected. A screen mesh taking mechanism for taking out the screen mesh 6 is arranged on the lifting frame 10; The limiting mechanism includes upper right angle blocks 14 with inclined surfaces. Plug rods 39 are fixedly connected to both sides of the lower plate 7. Limiting frames 15 are fixedly connected to both sides of the outer wall of the mounting frame 5. The plug rods 39 are inserted into the inside of the limiting frames 15. Grooves are opened on the side walls of the plug rods 39, and the upper right angle blocks 14 are slidably connected to the inside of the grooves. A sliding plate 16 is longitudinally slidably connected to the inside of the limiting frames 15. A plurality of lower right angle blocks 17 with inclined surfaces are fixedly connected to the side wall of the sliding plate 16. The inclined surface of one of the lower right angle blocks 17 is in contact with the inclined surface of the upper right angle block 14. A T-shaped groove is penetrated and opened at the top of the screen mesh 6. A pair of upper T-shaped blocks 18 are fixedly connected to the side wall of the lower plate 7, and the upper T-shaped blocks 18 are inserted into the T-shaped groove; An upper spring 19 is fixedly connected between the inside 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 end inside the limiting frame 15 and the top end of the sliding plate 16. A release rod 21 is fixedly connected to the side wall of the sliding plate 16, and the side end of the release rod 21 is set as a smooth arc surface; The screen mesh taking mechanism includes upper electromagnets 22. There are a pair of upper electromagnets 22. The upper electromagnets 22 are both arranged on the side walls of the lifting frames 10. Top grooves 23 adapted to the lower plate 7 are opened at the tops of the upper electromagnets 22 (it should be noted that the upper electromagnets 22 only have a magnetic attraction function at the top grooves 23). Moving plates 24 are fixedly connected to the sides of the upper electromagnets 22 away from each other. Release grooves are opened at the tops of the upper electromagnets 22, and release right angle blocks 25 with inclined surfaces are arranged inside the release grooves. Upper electric telescopic cylinders 26 are fixedly connected to the bottoms of the upper electromagnets 22. The output ends of the upper electric telescopic cylinders 26 are fixedly connected to the bottoms of the release right angle blocks 25. A screw rod 27 is rotatably connected to the inside of the lifting frame 10. A driving motor 28 is fixedly connected to the top of the lifting frame 10. The output end of the driving motor 28 passes through the inside of the lifting frame 10 and is fixedly connected to the top of the screw rod 27. The lifting frame 10 is inclined, and the lifting frame 10 is perpendicular to the inclined frame of the linear screen 1. The screen frame of the linear screen 1 is designed to be inclined, and the material rolls down by its own gravity. Therefore, the screen mesh taking mechanism is also inclined and perpendicular to the screen frame, so as to ensure the normal replacement of the inclined screen mesh 6; The moving plate 24 is slidably connected to the inner side of the lifting frame 10. A pair of straight rods 29 are fixedly connected to the side wall of the upper electromagnet 22. The screw rod 27 passes through and is threadedly connected to the inner side wall of the moving plate 24. The top ends of the straight rods 29 are fixedly connected with inclined rods 30 that incline towards both sides. The bottom end of the screen frame of the linear screen 1 is fixedly connected with a bottom plate 31. A round rod 32 is fixedly connected to the side wall of the bottom plate 31 at a position above the straight rods 29. Through the arrangement of the inclined rods 30 and the straight rods 29, it can be ensured 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 installed on the support legs through springs, during the operation, it is inevitable that the installation frame 5 and the upper electromagnet 22 are misaligned (it should be noted that the vibration screening method of the linear screen 1 is horizontal movement screening, and there are limit devices on the support legs to limit the movement of the screen mesh in other directions, so there will be no deviation in other directions). Then, the round rod 32 on the screen frame of the linear screen 1 is squeezed by the inclined rod 30, and then the round rod 32 is squeezed into the space between the straight rods 29. During this process, the screen frame of the linear screen 1 is driven to move by squeezing the round rod 32, and then the installation frame 5 is squeezed to the replacement position to ensure the accurate docking of the subsequent top groove 23 and the lower plate 7; When it is necessary to replace the screen mesh 6 of different specifications, first control the rotation motor 9 to start and drive the rotating shaft 4 to rotate, and at the same time drive the installation frame 5 and the screen mesh 6 to rotate, so that the lower plate 7 is turned downwards by 90 degrees. Then, control the driving motor 28 to start and drive the screw rod 27 to rotate, and then drive the moving plate 24 connected by threads to move in the lifting frame 10, and at the same time drive the upper electromagnet 22 to move upwards. 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 end of the release rod 21 is located on the inclined surface of the release right-angle block 25. Then, first control the upper electric telescopic cylinder 26 to start and drive the release right-angle block 25 to move upwards. Then, the inclined surface of the release right-angle block 25 gradually squeezes the release rod 21 to slide horizontally, and at the same time drives the sliding plate 16 to slide in the limit frame 15, and drives the lower right-angle block 17 to move away from the upper right-angle block 14, and at the same time compresses the lower spring 20, so as to release the position restriction on the lower plate 7. Then, control the upper electromagnet 22 to be energized to adsorb the lower plate 7 (it should be noted here that the lower plate 7 is made of iron); Then control the driving motor 28 to start reversing, and then drive the upper electromagnet 22 and the moving plate 24 to move downwards, and at the same time drive the lower plate 7 and the screen mesh 6 whose position restrictions are released to be pulled out from the installation frame 5. During this process, the release right-angle block 25 will gradually move away from the release rod 21, and then gradually release the extrusion on the release rod 21, and under the elastic force of the lower spring 20, push the sliding plate 16 and the lower right-angle block 17 to reset. However, at this time, the upper right-angle block 14 has moved out of the limit frame 15 and will not affect the movement of the lower plate 7. Finally, the screen mesh 6 can be completely pulled out from the installation frame 5.

[0023] In summary, through the design of the above structure, the screen 6 can be flipped 90 degrees to be in a downward vertical state. Subsequently, the limit of the screen 6 is automatically released by the screen-taking mechanism, and the screen 6 is pulled out, thereby realizing the automatic removal of the screen 6 and being able to be automatically installed back after replacement, greatly improving the convenience performance of the device.

[0024] On the basis of the above embodiment, it is found during use that when the screen 6 is designed to be flip-shaped, there will be some gaps, resulting in the screened material falling directly, affecting the normal operation of the equipment. To solve the above problems, the above structure is further improved.

[0025] To ensure the stability during the operation of the device, the position of the top end of the mounting frame 5 relative to the top plate 2 is flush with the top end of the top plate 2, and the top end of the screen 6 is flush with the top end of the top plate 2. The two ends of the screen 6 on the side 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, then the mounting frame 5 will also be misaligned with the lower screen 6. Therefore, during the insertion of the screen 6, the inclined surface of the screen 6 can squeeze the mounting frame 5 to move the screen frame of the linear screen 1, so as to ensure that the screen 6 can be accurately inserted into the mounting frame 5. Upper inclined blocks 11 are fixedly connected to both ends of the inner side of the linear screen 1 relative to the top end of the mounting frame 5, and lower inclined blocks 12 are fixedly connected to both sides of the top end of the top plate 2 on the side away from the discharge port. Through the setting of the upper inclined blocks 11 and the lower inclined blocks 12, it can be avoided that the screened food is directly discharged without passing above the screen 6, playing a role of blocking and guiding. A baffle cloth 13 is fixedly connected to the position beside the flipping groove 3 relative to the bottom end of the mounting frame 5. Through the setting of the baffle cloth 13, the flipping groove 3 can be blocked to prevent the screened and fallen materials from leaking out from the flipping groove 3, improving the stability during the operation of the equipment.

[0026] In summary, through the design of the above structure, it is possible to block the periphery of the flip-type screen 6 without hindering the normal flipping of the screen 6, thereby ensuring the normal operation of the linear screen 1.

[0027] On the basis of the above embodiment, it is found during use that although the limit of the screen 6 can be automatically released and the screen 6 can be pulled out, it is still necessary to manually pull out the screen 6 and replace it with a screen 6 of the required specification, which is rather troublesome. To solve the above problems, the above structure is further improved.

[0028] A replacement table 33 is fixedly connected between the lifting frames 10. The top end of the replacement table 33 is inclined. Side grooves are formed on both sides of the top end of the replacement table 33. A lower groove adapted to the lower plate 7 is formed at the top end of the replacement table 33. A pair of lower T-shaped blocks 34 are fixedly connected to both sides of the top end 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 formed through the side wall of the vertical plate 35. A lower electromagnet 36 is arranged 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; The lower T-shaped blocks 34 are arranged on both sides of the side grooves. Limit plates 38 are connected to the side walls of the lower T-shaped blocks 34 on the side far from the vertical plate 35 through 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 plate 38, take out the limit plate 38, then the screen 6 on the lower T-shaped block 34 can be pulled out. Then insert the screen 6 to be replaced and install the limit plate 38 back; Before use, first remove the limit plate 38, insert the screen 6 to be replaced on the lower T-shaped block 34, 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 be energized to adsorb the screen 6 (it should be noted here that the screen 6 is made of iron material), so as to pull the installed screen 6 to the other pair of lower T-shaped blocks 34. Then when the screen taking mechanism pulls out the screen 6 and the lower plate 7 from the installation frame 5, the upper electromagnet 22 moves into the side groove, and the lower plate 7 moves into the lower groove. At this time, the bottom end of the screen 6 is flush with the top end of the replacement table 33. Then control the lower electric telescopic cylinder 37 to start and drive the lower electromagnet 36 to move. The screen 6 on the lower T-shaped block 34 is pushed by the lower electromagnet 36 to squeeze the screen 6 on the upper T-shaped block 18. After the taken-out screen 6 is squeezed to the other pair of lower T-shaped blocks 34, the lower electric telescopic cylinder 37 drives the lower electromagnet 36 to move in the reverse direction, so as to completely move the replaced screen 6 to the upper T-shaped block 18 and push the taken-out screen 6 to the outside of the upper electromagnet 22 to avoid affecting the subsequent normal installation; 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. Then, the driving motor 28 can be controlled to rotate forward to drive the lower plate 7 and the screen mesh 6 to move upward and be inserted back into the installation frame 5. During this process, the screen mesh 6 will be first inserted into the installation frame 5, and then the upper right-angle block 14 on the insertion rod 39 is inserted into the limiting frame 15. Subsequently, the upper right-angle block 14 moves beside the lower right-angle block 17. Then, under the extrusion of the inclined surface of the lower right-angle block 17, the upper right-angle block 14 will be pushed into the groove and compress the upper spring 19. Then, when the upper right-angle block 14 moves away 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. This process is repeated until the screen mesh 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 to limit the sliding position of the lower plate 7. Finally, after the installation is completed, control the rotation motor 9 to rotate in reverse to drive the installation frame 5 to flip and reset. At the same time, control the lower electric telescopic cylinder 37 to start, move the lower electromagnet 36 to beside the removed screen mesh 6, and control the lower electromagnet 36 to be energized to adsorb the screen mesh 6 and pull the screen mesh 6 to beside another pair of lower T-shaped blocks 34.

[0029] In summary, through the design of the above structure, the screen mesh 6 that needs to be replaced can be automatically pushed onto the extracted lower plate 7, and the original screen mesh 6 can be extruded, thereby realizing the full-automatic replacement of the screen mesh 6 and greatly improving the convenience performance of the device.

[0030] The above shows and describes the basic principles, main features and advantages of the present invention.

[0031] Those skilled in the art of this industry should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification is only the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed.

Claims

1. A screening device for food processing, including a linear sieve (1), characterized in that: Both ends of the inner side of the linear sieve (1) are fixedly connected with top plates (2). A flipping groove (3) is formed at the position between the top of the linear sieve (1) and the top plates (2). A rotating shaft (4) is rotatably connected in the flipping groove (3). The top end of the rotating shaft (4) is fixedly connected with a mounting frame (5). A slot is formed on the side wall of the mounting frame (5). A sieve mesh (6) is inserted into the slot. A lower plate (7) is arranged beside the sieve mesh (6). The top end of the mounting frame (5) is fixedly connected with a side plate (8) at the position beside the frame of the linear sieve (1). A rotating motor (9) is fixedly connected to the side wall of the linear sieve (1). The output end of the rotating motor (9) passes through the inner side of the linear sieve (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 arranged on the mounting frame (5). Both sides of the legs of the linear sieve (1) close to each other are fixedly connected with lifting frames (10). A mesh taking mechanism for taking out the sieve mesh (6) is arranged on the lifting frames (10).

2. The screening device for food processing according to claim 1, characterized in that: The position between the top end of the mounting frame (5) and the top plates (2) is flush with the top end of the top plates (2). The top end of the sieve mesh (6) is flush with the top end of the top plates (2). Both ends of the side of the sieve mesh (6) away from the lower plate (7) are inclined.

3. The screening device for food processing according to claim 1, wherein: Upper inclined blocks (11) are fixedly connected to both ends of the inner side of the mounting frame (5) relative to the top plates (2). Lower inclined blocks (12) are fixedly connected to both sides of the top end of the top plates (2) on the side away from the discharge port. A baffle cloth (13) is fixedly connected to the bottom end of the mounting frame (5) beside the flipping groove (3).

4. A screening device for food processing according to claim 1, characterized in that: The limiting mechanism includes upper right-angle blocks (14) with inclined surfaces. Plug rods (39) are fixedly connected to both sides of the lower plate (7). Limiting frames (15) are fixedly connected to both sides of the outer wall of the mounting frame (5). The plug rods (39) are inserted into the inner sides of the limiting frames (15). Grooves are formed on the side walls of the plug rods (39). The upper right-angle blocks (14) are slidably connected to the inner sides of the grooves. A sliding plate (16) is longitudinally slidably connected to the inner side of the limiting frame (15). A plurality of lower right-angle blocks (17) with inclined surfaces are fixedly connected to the side wall of the sliding plate (16). The inclined surface of one of the lower right-angle blocks (17) is attached to the inclined surface of the upper right-angle block (14). T-shaped grooves are formed through the top end of the sieve mesh (6). A pair of upper T-shaped blocks (18) are fixedly connected to the side wall of the lower plate (7). The upper T-shaped blocks (18) are inserted into the T-shaped grooves.

5. A screening device for food processing according to claim 4, characterized in that: 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 end of the inner side of the limiting frame (15) and the top end of the sliding plate (16). A release rod (21) is fixedly connected to the side wall of the sliding plate (16). The side end of the release rod (21) is set as a smooth arc surface.

6. The screening device for food processing according to claim 1, wherein: The mesh taking mechanism includes upper electromagnets (22), and there are a pair of the upper electromagnets (22). The upper electromagnets (22) are both arranged on the side walls of the lifting frame (10). Top grooves (23) adapted to the lower plate (7) are opened at the tops of the upper electromagnets (22). Moving plates (24) are fixedly connected to the sides of the upper electromagnets (22) away from each other. Release grooves are opened at the tops of the upper electromagnets (22), and release right-angle blocks (25) with inclined surfaces are arranged in the release grooves. Upper electric telescopic cylinders (26) are fixedly connected to the bottoms of the upper electromagnets (22), and the output ends of the upper electric telescopic cylinders (26) are fixedly connected to the bottoms of the release right-angle blocks (25). A screw rod (27) is rotatably connected to the inside of the lifting frame (10), and a driving motor (28) is fixedly connected to the top of the lifting frame (10). The output end of the driving motor (28) passes through the inside of the lifting frame (10) and is fixedly connected to the top of the screw rod (27). The lifting frame (10) is inclined, and the lifting frame (10) is perpendicular to the inclined frame body of the linear screen (1).

7. A screening device for food processing according to claim 6, characterized in that: The moving plates (24) are both slidably connected to the inside of the lifting frame (10). A pair of straight rods (29) are fixedly connected to the side walls of the upper electromagnets (22). The screw rod (27) passes through and is threadedly connected to the inner side walls of the moving plates (24). Inclined rods (30) inclined to both sides are fixedly connected to the tops of the straight rods (29). A bottom plate (31) is fixedly connected to the bottom end of the screen frame of the linear screen (1). A round rod (32) is fixedly connected to the side wall of the bottom plate (31) at a position above the straight rods (29).

8. The screening device for food processing 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 inclined. Side grooves are opened on both sides of the top of the replacement table (33). A lower groove adapted to the lower plate (7) is opened at the top of the replacement table (33). A pair of lower T-shaped blocks (34) are fixedly connected to 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 penetrated and opened on the side wall of the vertical plate (35), and a lower electromagnet (36) is arranged in the storage groove. A lower electric telescopic cylinder (37) is fixedly connected to the side wall of the vertical plate (35), and the output end of the lower electric telescopic cylinder (37) is fixedly connected to the side wall of the lower electromagnet (36).

9. The screening device for food processing according to claim 8, characterized in that: The lower T-shaped blocks (34) are arranged at positions on both sides of the side grooves. Limiting plates (38) are connected to the side walls of the lower T-shaped blocks (34) away from the vertical plate (35) through bolts.

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