Food detection and screening device

Abstract

The present invention discloses a food detection and screening device, including a fixed shell, a collecting guide groove, a collecting box, a food box, a rotating drum, an inner cavity, a screening cavity, a screening net, a conveying mechanism, a feeding funnel, an annular groove, an input hole, a driving device and a transmission shaft; the present invention has a reasonable and simple structure, low production cost and convenient installation. Here, the motor is started to drive the rotating drum to rotate as a whole through the connecting shaft and the transmission shaft, thereby improving the efficiency of raw material screening, and also improving the efficiency of food production and detection; the driving device provided in the present invention can drive the rotating drum to rotate as a whole as needed, and can also keep the conveying screw in the rotating rotating drum stationary as needed, thereby avoiding interference of raw materials in different screening cavities during screening, and the conveying screw can also keep rotating when the rotating drum rotates for screening, thereby meeting the needs of screening and conveying at the same time, thereby improving the screening efficiency and quality.

Description

Technical Field

[0001] The present invention relates to the field of screening technology, in particular to a food detection and screening device. Background Art

[0002] Food is usually composed of carbohydrates, fats, proteins or water, and can be eaten or drunk to provide nutrition or pleasure to humans or organisms. With the improvement of people's living standards and health awareness, how to improve food quality, reduce harmful residues in food, and ensure food quality and safety is an important task in the current food production and processing industry. Since food raw materials need to be screened during production or before testing, the existing screening equipment has relatively low screening efficiency and poor screening effect. Summary of the Invention

[0003] The purpose of the present invention is to provide a food detection and screening device in order to solve the above problems, thereby solving the problem that the existing screening devices have relatively low screening efficiency and relatively poor screening effect.

[0004] In order to solve the above problems, the present invention provides a technical solution: a food detection and screening device, the innovation of which is that it includes: a fixed shell, a collecting guide groove, a collecting box, a food box, a rotating drum, an inner cavity, a screening cavity, a screening net, a conveying mechanism, a feeding funnel, an annular groove, an input hole, a driving device and a transmission shaft; the inner cavity is provided inside the upper side of the fixed shell, and the driving device is fixedly connected to the outer left upper side of the fixed shell; there are several collecting guide grooves, and the several collecting guide grooves are arranged horizontally and opened on the bottom surface of the inner cavity; there are several collecting boxes, and the several collecting boxes are respectively located at the lower side outlets of the corresponding collecting guide grooves; the food box is located below the lower right side outlet of the fixed shell; the outer side of the rotating drum is movably connected to the inner cavity Inside, a conveying mechanism is provided on the lower side of the drum, and the left side of the conveying mechanism is connected to the output sleeve on the right side of the driving device. A transmission shaft is fixedly connected to the center of the drum, and the left center of the transmission shaft is connected to the connecting shaft on the right side of the driving device. There are several screening chambers, and several of the screening chambers are arranged horizontally and provided inside the drum. Several screening nets are provided around the screening chambers, and the outer sides of the screening nets are respectively located on the upper side of the corresponding collecting guide grooves; the annular groove is opened on the outside of the left side of the drum, and several input holes are opened on the inside of the annular groove, and the input holes are all connected to the inside of the screening chamber on the left; the lower side of the feeding funnel is fixedly connected to the opening on the upper left side of the inner cavity, and the lower outlet of the feeding funnel is connected to the inside of the annular groove.

[0005] Preferably, the specific structure of the conveying mechanism includes an output hole, an outlet hole, a conveying screw rod, a guide sleeve, a driven gear 1 and a driving gear 1; the output hole is opened on the lower right side of the inner cavity; the outlet hole is opened on the lower right side of the screening cavity on the right side, and the right opening of the outlet hole is connected to the left opening of the output hole; there are several guide sleeves, and the centers of the outer parts of the several guide sleeves are respectively fixedly connected to the lower sides between the corresponding screening cavities; the right side of the conveying screw rod is movably connected to the inside of the guide sleeve and the outlet hole, the left side of the conveying screw rod is movably connected to the inside of the lower left side of the rotating drum, and the left end of the conveying screw rod is fixedly connected to the driven gear 1; the center of the driving gear 1 is fixedly connected to the outside of the output sleeve on the right side of the driving device, and the driving gear 1 is connected to the driven gear 1.

[0006] Preferably, the output hole is in an arc shape.

[0007] Preferably, the driving gear 1 and the driven gear 1 are both located inside the left side of the rotating drum.

[0008] Preferably, the specific structure of the driving device includes a mounting seat, a transmission cavity, a transmission gear, an end cover, a motor 1, a movable clamping sleeve, an output sleeve, a clamping block 1, a spring 1, a motor 2, a cylinder, a connecting block, a driving gear 2, a clamping block 2, a spring 2 and a connecting shaft; a transmission cavity is provided inside the left side of the mounting seat, and the end cover is fixedly connected to the left opening of the transmission cavity, the lower left side of the mounting seat is fixedly connected to the motor 2, and the driving gear 2 is fixedly connected to the right output shaft of the motor 2; the left side of the end cover is fixedly connected to the motor 1, and the lower side of the end cover is fixedly connected to the cylinder; the output sleeve is movably connected to the center of the transmission cavity, the output sleeve is movably connected to the connecting shaft, and the left center of the connecting shaft is fixedly connected to the right output shaft of the motor 1, and the right side of the connecting shaft is fixedly connected to the left center of the transmission shaft; the transmission gear is movably connected to the right side of the transmission cavity, and the lower side of the transmission gear The tooth portion is connected to the driving gear two, and the central interior of the transmission gear is movably connected to the outside of the output sleeve; the outer side of the movable sleeve is laterally connected to the left side of the transmission cavity, and the outer side of the lower side of the movable sleeve is fixedly connected with a connecting block, and the left side of the connecting block is fixedly connected to the end of the piston rod of the right side of the oil cylinder; there are several said card blocks, and several of the said card blocks are movably connected to the inside around the left side of the output sleeve, and the outer sides of several said card blocks are connected to the left inner tapered hole surface of the movable card sleeve, and the inner sides of several said card blocks are provided with springs one, and the inner sides of several said card blocks are connected to the outer side surface of the output sleeve; there are several said card blocks, and several of the said card blocks are movably connected to the inside around the left side of the transmission gear, and the outer sides of several said card blocks are connected to the right inner tapered hole surface of the movable card sleeve, and the inner sides of several said card blocks are provided with springs two, and the inner sides of several said card blocks are connected to the outer side surface of the output sleeve.

[0009] Preferably, the left inner side of the movable ferrule is a tapered hole surface with a larger left side and a smaller right side, and the right inner side of the movable ferrule is a tapered hole surface with a smaller left side and a larger right side.

[0010] Preferably, the motor 1 and the motor 2 are both servo motors or stepper motors.

[0011] Preferably, anti-slip grooves are provided on the inner sides of the first and second clamping blocks.

[0012] Preferably, the lower side of the collecting guide groove is funnel-shaped.

[0013] Beneficial effects of the present invention:

[0014] (1) The present invention has a reasonable and simple structure, low production cost and easy installation. Here, the starting motor drives the rotating drum to rotate as a whole through the connecting shaft and the transmission shaft, thereby improving the efficiency of raw material screening and also improving the efficiency of food production and testing.

[0015] (2) The conveying mechanism provided in the present invention can drive the conveying screw to rotate through the driving device, thereby helping to convey the raw materials to the right side to the screening chamber on the right side for further screening, thereby improving the quality of the raw materials after screening.

[0016] (3) The driving device provided in the present invention can drive the entire drum to rotate as required, and can also keep the conveying screw in the rotating drum stationary as required, thereby avoiding interference between the raw materials in different screening chambers during screening. In addition, the conveying screw can also be kept rotating when the drum rotates for screening, thus meeting the need of screening and conveying at the same time, thereby improving the screening efficiency and quality.

[0017] (4) In the present invention, when the conveying screw rod is at the bottom, the screened raw materials can be quickly and directly output through the output hole, thereby improving the convenience of screening. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the present invention.

[0019] Figure 2 for Figure 1 sectional view of .

[0020] Figure 3 It is a structural diagram of the conveying mechanism.

[0021] Figure 4 Schematic diagram of the structure of the drive device.

[0022] Figure 5 for Figure 4 Enlarged view of position A in the middle.

[0023] 1-Fixed housing; 2-Collection guide groove; 3-Collection box; 4-Food box; 5-Drum; 6-Inner cavity; 7-Screening cavity; 8-Screening net; 9-Conveying mechanism; 10-Feeding funnel; 11-Annular groove; 12-Input hole; 13-Drive device; 14-Transmission shaft; 91-Output hole; 92-Outlet hole; 93-Conveying screw rod; 94-Guide sleeve; 95-Driven gear 1; 96-Drive gear 1; 131-Mounting seat; 132-Transmission cavity; 133-Transmission gear; 134-End cover; 135-Motor 1; 136-Movable ferrule; 137-Output sleeve; 138-Block 1; 139-Spring 1; 1310-Motor 2; 1311-Cylinder; 1312-Connecting block; 1313-Drive gear 2; 1314-Block 2; 1315-Spring 2; 1316-Connecting shaft. DETAILED DESCRIPTION

[0024] like Figure 1 and Figure 2 As shown, this specific embodiment adopts the following technical solutions: a food detection and screening device, including a fixed shell 1, a collecting guide groove 2, a collecting box 3, a food box 4, a rotating drum 5, an inner cavity 6, a screening cavity 7, a screening net 8, a conveying mechanism 9, a feeding funnel 10, an annular groove 11, an input hole 12, a driving device 13 and a transmission shaft 14; the inner cavity 6 is provided inside the upper side of the fixed shell 1, and the driving device 13 is fixedly connected to the outer left upper side of the fixed shell 1; there are several collecting guide grooves 2, and several of the collecting guide grooves 2 are arranged horizontally and opened on the bottom surface of the inner cavity 6; there are several collecting boxes 3, and several of the collecting boxes 3 are respectively located at the lower side outlets of the corresponding collecting guide grooves 2; the food box 4 is located below the lower right side outlet of the fixed shell 1; the outer side of the rotating drum 5 is movably connected to the inner cavity 6, and the rotating drum 5 is movably connected to the inner cavity 6 A conveying mechanism 9 is provided on the lower side of the inside of the drum 5, and the left side of the conveying mechanism 9 is connected to the output sleeve on the right side of the driving device 13. A transmission shaft 14 is fixedly connected to the center of the rotating drum 5, and the left center of the transmission shaft 14 is connected to the right connecting shaft of the driving device 13. There are several screening chambers 7, and several of the screening chambers 7 are arranged horizontally and provided inside the rotating drum 5. Several screening nets 8 are provided around the several screening chambers 7, and the outer sides of the screening nets 8 are respectively located on the upper side of the corresponding collecting guide groove 2; the annular groove 11 is opened on the outside of the left side of the rotating drum 5, and several input holes 12 are opened on the inside of the annular groove 11, and the input holes 12 are all connected to the inside of the screening chamber 7 on the left; the lower outside of the feeding funnel 10 is fixedly connected to the opening on the upper left side of the inner cavity 6, and the lower outlet of the feeding funnel 10 is connected to the inside of the annular groove 11.

[0025] like Figure 3As shown, the specific structure of the conveying mechanism 9 includes an output hole 91, an outlet hole 92, a conveying screw rod 93, a guide sleeve 94, a driven gear 95 and a driving gear 96; the output hole 91 is opened on the lower right side of the inner cavity 6; the outlet hole 92 is opened on the lower right side of the screening chamber 7 on the right side, and the right opening of the outlet hole 92 is connected to the left opening of the output hole 91; there are several guide sleeves 94, and the outer centers of several guide sleeves 94 are respectively fixedly connected to the lower sides between the corresponding screening chambers 7; the right side of the conveying screw rod 93 is movably connected to the inside of the guide sleeve 94 and the outlet hole 92, and the left side of the conveying screw rod 93 is movably connected to the inside of the lower left side of the rotating drum 5, and the left end of the conveying screw rod 93 is fixedly connected to a driven gear 95; the central interior of the driving gear 96 is fixedly connected to the outside of the output sleeve on the right side of the driving device 13, and the driving gear 96 is connected to the driven gear 95.

[0026] The output hole 91 is in an arc shape; the driving gear 96 and the driven gear 95 are both located inside the left side of the rotating drum 5.

[0027] like Figure 4 and Figure 5As shown, the specific structure of the driving device 13 includes a mounting base 131, a transmission cavity 132, a transmission gear 133, an end cover 134, a motor 135, a movable clamping sleeve 136, an output sleeve 137, a clamping block 138, a spring 139, a motor 2 1310, a cylinder 1311, a connecting block 1312, a driving gear 2 1313, a clamping block 2 1314, a spring 2 1315 and a connecting shaft 1316; the transmission cavity 132 is provided inside the left side of the mounting base 131, and the end cover 134 is fixedly connected to the left opening of the transmission cavity 132, and the outer portion of the lower left side of the mounting base 131 is fixedly connected There is a motor 2 1310, and a driving gear 2 1313 is fixedly connected to the right output shaft of the motor 2 1310; the left side of the end cover 134 is fixedly connected to the motor 135, and the lower side of the end cover 134 is fixedly connected to the oil cylinder 1311; the output sleeve 137 is movably connected to the center of the transmission chamber 132, and the output sleeve 137 is movably connected to the connecting shaft 1316, and the left center of the connecting shaft 1316 is fixedly connected to the right output shaft of the motor 135, and the right side of the connecting shaft 1316 is fixedly connected to the left center of the transmission shaft 14; the transmission gear 133 is movably connected to the transmission chamber 132. On the right side of the movable cavity 132, the lower tooth portion of the transmission gear 133 is connected to the driving gear 2 1313, and the central interior of the transmission gear 133 is movably connected to the outside of the output sleeve 137; the outer side of the movable clamping sleeve 136 is horizontally connected to the left side of the transmission cavity 132, and the lower outer side of the movable clamping sleeve 136 is fixedly connected to the connecting block 1312, and the left side of the connecting block 1312 is fixedly connected to the right side piston rod end of the oil cylinder 1311; there are several clamping blocks 138, and several of the clamping blocks 138 are movably connected to the inner periphery of the left side of the output sleeve 137, and the outer sides of several of the clamping blocks 138 are connected to the movable The left inner tapered hole surface of the sleeve 136 is connected, and several of the central step surfaces of the block one 138 are provided with a spring one 139, and the inner surfaces of several of the block one 138 are connected to the outer surface of the connecting shaft 1316; there are several block two 1314, and several of the block two 1314 are movably connected to the inner four sides of the left side of the transmission gear 133, and the outer sides of several of the block two 1314 are connected to the right inner tapered hole surface of the movable sleeve 136, and several of the central step surfaces of the block two 1314 are provided with a spring two 1315, and the inner surfaces of several of the block two 1314 are connected to the outer surface of the output sleeve 137.

[0028] Among them, the left inner side of the movable sleeve 136 is a tapered hole surface with a larger left side and a smaller right side, and the right inner side of the movable sleeve 136 is a tapered hole surface with a smaller left side and a larger right side; the motor 1 135 and the motor 2 1310 are both servo motors or stepper motors, so it is convenient to control the motor 135 and the motor 2 1310 through existing automation technology; the inner sides of the block 1 138 and the block 2 1314 are provided with anti-slip grooves, thereby improving the stability and reliability of the transmission; the lower side of the collecting guide groove 2 is funnel-shaped.

[0029] The usage status of the present invention is as follows: the present invention has a reasonable and simple structure, low production cost and easy installation. When in use, the raw materials are first conveyed to the inside of the annular groove 11 through the feeding funnel 10, and then directly conveyed to the screening chamber 7 on the left through the input hole 12, and then the motor 135 is started to drive the drum 5 to rotate as a whole through the connecting shaft 1316 and the transmission shaft 14, thereby improving the efficiency of raw material screening, and also improving the efficiency of food production and inspection. The conveying mechanism 9 set here can drive the conveying screw 93 to rotate through the driving device 13, thereby helping to convey the raw materials to the right to the screening chamber 7 on the right for screening again, and also improving the quality of the raw materials after screening. The driving device 13 set here can drive the drum 5 to rotate as a whole as needed, and can also keep the conveying screw 93 in the rotating drum 5 stationary as needed, thereby avoiding interference between raw materials in different screening chambers 7 during screening, and the conveying can also be made when the drum 5 rotates for screening. The screw rod 93 keeps rotating, which meets the needs of screening and conveying at the same time, thereby improving the screening efficiency and quality. When the conveying screw rod 93 is at the lowest side, the screened raw materials can be quickly and directly output through the output hole 91, thereby improving the convenience during screening. Here, the extension of the oil cylinder 1311 can drive the movable clamping sleeve 136 to move right through the connecting block 1312, and the right movement of the movable clamping sleeve 136 clamps the output sleeve 137 through the clamping block 2 1314, so that the power of the motor 2 1310 can be transmitted to the conveying screw rod 93 to drive it to rotate, and the shortening of the oil cylinder 1311 can drive the movable clamping sleeve 136 to move left through the connecting block 1312, so that the connecting shaft 1316 can be clamped through the clamping block 138, thereby ensuring that the movable clamping sleeve 136 can rotate with the connecting shaft 1316, and also ensuring that the transmission gear 133 rotates with the drum 5, thereby ensuring that the conveying screw rod 93 in the rotating drum 5 can remain stationary.

[0030] The control method of the present invention is through manual startup or control through existing automation technology. The wiring diagram of the power element and the provision of power supply are common knowledge in the field, and the present invention is mainly used to protect mechanical devices. Therefore, the present invention will no longer explain the control method and wiring layout in detail.

[0031] In the description of the invention, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inside", "front", "center", "both ends", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the invention.

[0032] In the present invention, unless otherwise clearly specified and limited, terms such as "installation", "setting", "connection", "fixation", and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be internal communication between two elements or an interaction relationship between two elements. Unless otherwise clearly specified, ordinary technicians in this field can understand the specific meanings of the above terms in the present invention according to the specific circumstances.

[0033] The above shows and describes the basic principles, main features and advantages of the invention. Those skilled in the art should understand that the invention is not limited to the above embodiments. The above embodiments and descriptions only illustrate the principles of the invention. Without departing from the spirit and scope of the invention, the invention may be subject to various changes and improvements, which shall fall within the scope of the invention to be protected. The scope of protection of the invention shall be defined by the accompanying claims and their equivalents.

Claims

1. A food detection and screening device, characterized in that: It comprises a fixed housing (1), a collecting guide groove (2), a collecting box (3), a food box (4), a rotating drum (5), an inner cavity (6), a screening cavity (7), a screening net (8), a conveying mechanism (9), a feeding funnel (10), an annular groove (11), an input hole (12), a driving device (13) and a transmission shaft (14); An inner cavity (6) is provided inside the upper side of the fixed housing (1), and a driving device (13) is fixedly connected to the outer left upper side of the fixed housing (1); There are a plurality of collecting guide grooves (2), which are arranged in a transverse direction and are opened on the bottom surface of the inner cavity (6); There are a plurality of collecting boxes (3), and the plurality of collecting boxes (3) are respectively located at the lower outlets of the corresponding collecting guide grooves (2); The food box (4) is located below the outlet on the lower right side of the fixed housing (1); The outer portion of the rotating drum (5) is movably connected to the inner portion of the inner cavity (6); a conveying mechanism (9) is provided on the lower inner side of the rotating drum (5); and the left side of the conveying mechanism (9) is connected to the output sleeve on the right side of the driving device (13); a transmission shaft (14) is fixedly connected to the center of the rotating drum (5); and the left center of the transmission shaft (14) is connected to the right connecting shaft of the driving device (13); There are a plurality of screening cavities (7), which are arranged transversely and arranged inside the rotating drum (5). A plurality of screening nets (8) are arranged around the screening cavities (7), and the outer sides of the screening nets (8) are respectively located on the upper sides of the corresponding collecting guide grooves (2); The annular groove (11) is provided on the left side of the rotating drum (5), and a plurality of input holes (12) are provided on the inner side of the annular groove (11), and the input holes (12) are all connected to the inside of the screening chamber (7) on the left side; The lower exterior of the feeding funnel (10) is fixedly connected to the upper left opening of the inner cavity (6), and the lower outlet of the feeding funnel (10) is connected to the interior of the annular groove (11); The specific structure of the driving device (13) includes a mounting seat (131), a transmission chamber (132), a transmission gear (133), an end cover (134), a motor (135), a movable clamping sleeve (136), an output sleeve (137), a clamping block (138), a spring (139), a motor (1310), an oil cylinder (1311), a connecting block (1312), a driving gear (1313), a clamping block (1314), a spring (1315) and a connecting shaft (1316); A transmission chamber (132) is provided inside the left side of the mounting seat (131), and an end cover (134) is fixedly connected to the left opening of the transmission chamber (132); a second motor (1310) is fixedly connected to the outside of the lower left side of the mounting seat (131), and a second driving gear (1313) is fixedly connected to the output shaft on the right side of the second motor (1310); The left side of the end cover (134) is fixedly connected to the outside of the motor 1 (135), and the lower side of the end cover (134) is fixedly connected to the inside of the oil cylinder (1311); The output sleeve (137) is movably connected to the center of the transmission chamber (132), and a connecting shaft (1316) is movably connected inside the output sleeve (137), and the left center of the connecting shaft (1316) is fixedly connected to the right output shaft of the motor (135), and the right side of the connecting shaft (1316) is fixedly connected to the left center of the transmission shaft (14); The transmission gear (133) is externally movably connected to the right side of the transmission cavity (132), the lower tooth portion of the transmission gear (133) is connected to the second driving gear (1313), and the central interior of the transmission gear (133) is movably connected to the outside of the output sleeve (137); The outer side of the movable clamping sleeve (136) is laterally connected to the left side of the transmission chamber (132); the lower side of the movable clamping sleeve (136) is fixedly connected to the outer side thereof with a connecting block (1312); and the left side of the connecting block (1312) is fixedly connected to the right side piston rod end of the oil cylinder (1311); There are several clamping blocks (138), and several of the clamping blocks (138) are movably connected to the inner periphery of the left side of the output sleeve (137). The outer sides of several of the clamping blocks (138) are connected to the left inner tapered hole surface of the movable clamping sleeve (136). The inner sides of the central step surfaces of several of the clamping blocks (138) are provided with springs (139). The inner sides of several of the clamping blocks (138) are connected to the outer side of the connecting shaft (1316). There are several clamping blocks (1314), and several of the clamping blocks (1314) are movably connected to the inner part of the left side of the transmission gear (133). The outer sides of several of the clamping blocks (1314) are connected to the right inner tapered hole surface of the movable clamping sleeve (136). The inner sides of the central step surfaces of several of the clamping blocks (1314) are provided with springs (1315). The inner sides of several of the clamping blocks (1314) are connected to the outer side of the output sleeve (137).

2. The food detection and screening device according to claim 1, characterized in that: The specific structure of the conveying mechanism (9) includes an output hole (91), an outlet hole (92), a conveying screw rod (93), a guide sleeve (94), a driven gear (95) and a driving gear (96); The output hole (91) is opened on the lower right side of the inner cavity (6); The outlet hole (92) is opened on the lower right side of the right screening chamber (7), and the right opening of the outlet hole (92) is connected to the left opening of the output hole (91); There are several guide sleeves (94), and the outer centers of the several guide sleeves (94) are respectively fixedly connected to the lower sides of the corresponding screening chambers (7); The right side of the conveying screw rod (93) is movably connected to the inside of the guide sleeve (94) and the inside of the outlet hole (92), the left side of the conveying screw rod (93) is movably connected to the inside of the lower left side of the rotating drum (5), and the left end of the conveying screw rod (93) is fixedly connected to a driven gear 1 (95); The central interior of the driving gear 1 (96) is fixedly connected to the outside of the output sleeve on the right side of the driving device (13), and the driving gear 1 (96) is connected to the driven gear 1 (95).

3. The food detection and screening device according to claim 2, characterized in that: The output hole (91) is in an arc shape.

4. The food detection and screening device according to claim 2, characterized in that: The driving gear 1 (96) and the driven gear 1 (95) are both located inside the left side of the rotating drum (5).

5. The food detection and screening device according to claim 1, characterized in that: The left inner side of the movable clamping sleeve (136) is a tapered hole surface with a larger left side and a smaller right side, and the right inner side of the movable clamping sleeve (136) is a tapered hole surface with a smaller left side and a larger right side.

6. The food detection and screening device according to claim 1, characterized in that: The motor 1 (135) and the motor 2 (1310) are both servo motors or stepper motors.

7. The food detection and screening device according to claim 1, characterized in that: Anti-slip grooves are provided on the inner side surfaces of the first clamping block (138) and the second clamping block (1314).

8. The food detection and screening device according to claim 1, characterized in that: The lower side of the collecting guide groove (2) is in a funnel shape.

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