X-ray foreign matter detection and removal device for food processing

Abstract

The invention belongs to the technical field of food detection, and particularly relates to a food processing X-ray foreign matter detection and removal device which comprises a portal frame, a conveyor, a detection mechanism and a control module. A window is formed in one side of the portal frame; a discharging groove is formed in the window; the device further comprises a removing mechanism. The removing mechanism comprises a conversion seat; the conversion seat is driven and controlled by a motor to rotate; a group of mounting grooves are uniformly distributed in the circumference of the surface of the conversion seat; an electric push rod is fixedly connected into the mounting groove; the output end of the electric push rod is fixedly connected with a connecting column; the end, extending out of the mounting groove, of the connecting column is fixedly connected with a suction cup. According to the food detection and removal device, multiple pieces of unqualified food can be continuously and sequentially removed through the multiple circularly-rotating electric push rods and the multiple circularly-rotating suction cups, the removal work of the adjacent packaged food cannot influence one another, the food detection and removal work efficiency is improved, and meanwhile the situation that qualified products are mistakenly removed is avoided.

Description

Technical Field

[0001] This invention belongs to the field of food testing technology, specifically a food processing X-ray foreign object detection and removal device. Background Technology

[0002] In the modern food processing industry, food safety is of paramount importance. X-ray intelligent foreign object detection machines have become key equipment to ensure product quality. They utilize the penetrating properties of X-rays to effectively detect foreign objects mixed in packaged food, ensuring the food safety of consumers.

[0003] Current X-ray foreign object detection systems typically use a push-out device to remove non-conforming food from the production line after detecting foreign objects. For example, a patent in CN119951775A discloses an X-ray foreign object detection and rejection device. Its key technical features include a detection chamber, an X-ray generator, and an X-ray detector. The X-ray generator and detector are both mounted on the inner wall of the detection chamber. The feeding rack is located on one side of the detection chamber, and the discharging rack is located on the other side. A conveying and weighing mechanism accurately measures the weight of the packaged food containing foreign objects. The PLC controller automatically adjusts the thrust of the rejection cylinder based on the weight signal, ensuring accurate rejection of foreign-containing food while avoiding damage to the food due to improper thrust, thus reducing production costs. Simultaneously, a food buffer mechanism at the end of the PTFE conveying pipe cushions the slipping food, reducing crushing damage caused by impact. Furthermore, a food counting mechanism accurately counts the food, facilitating staff to count the number of foreign-containing food items and check for any missed rejections.

[0004] However, the above technologies have drawbacks: the packaged foods on the production line are often numerous and close together, and the production line is in motion. Using the above devices, it is easy to accidentally reject qualified packaged foods. Furthermore, the device needs time to reset after each rejection. If the packaged foods on the production line continuously have foreign objects and are unqualified, the above devices will find it difficult to continuously reject multiple foods in sequence, resulting in low rejection efficiency.

[0005] Therefore, the present invention provides a food processing X-ray foreign object detection and removal device. Summary of the Invention

[0006] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.

[0007] The technical solution adopted by the present invention to solve its technical problem is: a food processing X-ray foreign object detection and removal device, comprising a gantry, a conveyor, a detection mechanism and a control module;

[0008] The conveyor passes through the interior of the gantry frame; a window is provided on one side of the gantry frame; a discharge chute is provided inside the window; the detection mechanism is located inside the gantry frame; the detection mechanism uses X-rays to detect whether there are foreign objects in the packaged food on the surface of the conveyor;

[0009] It also includes a rejection mechanism; the rejection mechanism is located inside the gantry; the rejection mechanism is used to reject packaged food containing foreign objects;

[0010] The rejection mechanism includes a conversion seat; the conversion seat is driven and controlled to rotate by a motor; a set of mounting slots are evenly distributed around the circumference of the surface of the conversion seat; an electric push rod is fixedly connected inside the mounting slot; a connecting column is fixedly connected to the output end of the electric push rod; a suction cup is fixedly connected to one end of the connecting column extending outside the mounting slot.

[0011] Preferably, the conveyor and the transfer seat both move at a constant speed and at the same speed; a set of positioning discs are evenly distributed on the surface of the conveyor belt; the interior of the positioning discs is used to place packaged food; the distance between adjacent positioning discs is the same as the distance between adjacent suction cups.

[0012] Preferably, a piston plate is fixedly connected to the outside of the connecting column; the piston plate slides and seals with the mounting groove; an air guide pipe is provided inside the connecting column; one end of the air guide pipe is connected to the suction cup, and the other end extends between the piston plate and the electric push rod; a one-way valve is provided inside the air guide pipe.

[0013] Preferably, the piston plate has a through hole inside; a one-way valve is installed inside the through hole.

[0014] Preferably, a U-shaped hole is provided inside the conversion seat at the position corresponding to the suction cup; one end of the U-shaped hole is connected to the suction cup through a corrugated pipe, and the other end extends to the surface of the conversion seat; a sliding groove is provided in the middle of the U-shaped hole; a magnetic block is slidably and sealed inside the sliding groove; a spring is fixedly connected between the magnetic block and the sliding groove; an electromagnet is fixedly connected to the surface of the conversion seat at the position corresponding to the sliding groove.

[0015] Preferably, a limit ring is fixedly connected to the opening of the mounting groove.

[0016] Preferably, the suction cup has a hollow layer inside; a liquid dye is added inside the hollow layer; and a set of guide holes are evenly distributed between the hollow layer and the inner surface of the suction cup.

[0017] Preferably, the conversion seat has a replenishment chamber inside; the replenishment chamber stores liquid dye; an elastic hollow block is fixedly connected to the side of the piston plate near the electric push rod; an elastic element is fixedly connected inside the elastic hollow block; a second bellows pipe connects the elastic hollow block and the replenishment chamber; a liquid guide pipe connects the elastic hollow block and the hollow layer; and a one-way valve is installed inside both the second bellows pipe and the liquid guide pipe.

[0018] Preferably, an elastic retaining ring is fixedly connected to the inner surface of the suction cup opening; the inner side of the elastic retaining ring is inclined towards the inside of the suction cup and there is a gap between it and the suction cup.

[0019] Preferably, a sponge ring is fixedly connected between the elastic retaining ring and the suction cup.

[0020] The beneficial effects of the present invention are as follows:

[0021] 1. The X-ray foreign object detection and rejection device for food processing described in this invention sequentially detects packaged food moving on a conveyor through a detection mechanism. If a foreign object is detected in the food, the control module calculates the time from the detection of the foreign object to the time the packaged food reaches the bottom of the conversion seat based on the distance between the packaged food and the conversion seat and the speed of the conveyor. It then controls the bottom electric push rod to extend at a predetermined time, driving the suction cup to move downward and adhere to the surface of the packaged food. Then, it controls the electric push rod to shorten, lifting the packaged food upward and rotating it to the window for rejection. Through multiple cyclically rotating electric push rods and suction cups, multiple unqualified food items can be continuously rejected sequentially. The rejection work between adjacent packaged food items will not interfere with each other, improving the efficiency of food detection and rejection while avoiding the accidental rejection of qualified products.

[0022] 2. The X-ray foreign object detection and removal device for food processing described in this invention places packaged food items into the positioning tray, achieving a one-to-one correspondence between suction cups and food packages. As the conveyor and conversion seat continue to move, when one of the packaged food items moves to the bottom of the conversion seat, a suction cup rotates downwards to correspond with it, always ready to remove foreign objects. If a foreign object is detected in the food package, the corresponding suction cup is controlled to move downwards and remove it, ensuring uninterrupted operation of the production line and reducing the computational complexity and delay error of the control module.

[0023] 3. The X-ray foreign object detection and removal device for food processing described in this invention involves a dye inside the hollow layer flowing into the suction cup through multiple guide holes, causing a layer of dye to be distributed on the inner surface of the suction cup. When the suction cup is adsorbed onto the surface of packaged food, a marking color can be left on the surface of the food package containing foreign objects, thereby marking unqualified food and further distinguishing it from other qualified products or preventing unqualified food from entering the market. In addition, by utilizing the liquid properties of the dye, it can be distributed between the suction cup and the food package, filling the tiny gaps between the suction cup and the food package, further improving the vacuum degree of the suction cup and enhancing the adsorption effect. Attached Figure Description

[0024] The invention will now be further described with reference to the accompanying drawings.

[0025] Figure 1 It is a perspective view of the present invention;

[0026] Figure 2 This is a schematic diagram of the internal structure of the gantry frame in this invention;

[0027] Figure 3 This is a schematic diagram of the suction cup structure in this invention;

[0028] Figure 4 This is a cross-sectional view of the present invention;

[0029] Figure 5 yes Figure 4 Enlarged view of a portion of point A in the middle;

[0030] Figure 6 yes Figure 5 Enlarged view of a section at point B in the middle;

[0031] Figure 7 yes Figure 6 Enlarged view of a section at point C.

[0032] In the diagram: 1. Gantry frame; 2. Conveyor; 3. Detection mechanism; 4. Window; 5. Discharge chute; 6. Converter seat; 7. Motor; 8. Mounting slot; 9. Electric push rod; 10. Connecting column; 11. Suction cup; 12. Positioning plate; 13. Piston plate; 14. Air guide pipe; 15. Through hole; 16. U-shaped hole; 17. Corrugated pipe I; 18. Slide groove; 19. Magnetic block; 20. Electromagnet; 21. Limiting ring; 22. Hollow layer; 23. Guide hole; 24. Supply chamber; 25. Elastic hollow block; 26. Corrugated pipe II; 27. Liquid guide pipe; 28. Elastic retaining ring; 29. ​​Sponge ring. Detailed Implementation

[0033] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0034] like Figures 1 to 7As shown, the X-ray foreign object detection and removal device for food processing according to the present invention includes a gantry frame 1, a conveyor 2, a detection mechanism 3, and a control module;

[0035] The conveyor 2 passes through the interior of the gantry frame 1; a window 4 is provided on one side of the gantry frame 1; a discharge chute 5 is provided inside the window 4; the detection mechanism 3 is located inside the gantry frame 1; the detection mechanism 3 uses X-rays to detect whether there are foreign objects in the packaged food on the surface of the conveyor 2;

[0036] It also includes a rejection mechanism; the rejection mechanism is located inside the gantry 1; the rejection mechanism is used to reject packaged food containing foreign objects;

[0037] The rejection mechanism includes a rotating assembly; a set of adsorption components are evenly distributed on the surface of the rotating assembly; the rotating assembly controls the adsorption components to rotate, and the rotation axis is parallel to and above the conveying direction of the conveyor 2.

[0038] The adsorption component can be the suction cup 11, or other negative pressure adsorption and removal structural components, and is not limited to this;

[0039] The rotating component is a conversion seat 6; the conversion seat 6 is driven and controlled to rotate by a motor 7; a set of mounting grooves 8 are evenly distributed around the circumference of the surface of the conversion seat 6; an electric push rod 9 is fixedly connected inside the mounting groove 8; a connecting post 10 is fixedly connected to the output end of the electric push rod 9; the adsorption component is a suction cup 11; the suction cup 11 is fixedly connected to one end of the connecting post 10 extending outside the mounting groove 8; in this embodiment, the number of suction cups 11 should preferably be four.

[0040] Packaged foods on a production line are often numerous and close together, and the production line is in motion. Existing push-out devices are prone to accidentally rejecting qualified packaged foods. Furthermore, the device needs time to reset after each rejection. If packaged foods on the production line continuously have foreign objects and are unqualified, the aforementioned device will find it difficult to reject multiple foods sequentially, resulting in low rejection efficiency.

[0041] This invention uses a detection mechanism 3 to sequentially inspect packaged food moving on the conveyor 2. X-rays penetrate the food's interior. If a foreign object is detected, the control module calculates the time from the detection of the foreign object to the food reaching the bottom of the conversion seat 6 based on the distance between the packaged food and the conversion seat 6, and the speed of the conveyor 2. It then controls the bottommost electric push rod 9 to extend at a predetermined time, causing the suction cup 11 to move downwards and adhere to the surface of the packaged food. The push rod 9 is then shortened, lifting the packaged food upwards. Subsequently, the motor 7 controls the conversion seat 6 to rotate. As the suction cup 11 lifts the packaged food... When the device rotates to window 4 on the side, the electric push rod 9 extends again, thereby putting the food package containing foreign objects into the discharge trough 5 and removing it. At this time, another electric push rod 9 and suction cup 11 move to the bottom of the conversion seat 6 and face the conveyor 2. If the next packaged food still contains foreign objects, the unqualified food can continue to be removed. Through multiple cyclically rotating electric push rods 9 and suction cups 11, multiple unqualified foods can be removed in sequence. The removal work between adjacent packaged foods will not affect each other, which improves the efficiency of food inspection and removal, and avoids the situation of mistakenly removing qualified products.

[0042] The conveyor 2 and the conversion seat 6 both maintain a constant speed and the speed is the same, that is, the translational speed of the conveyor 2 is the same as the rotational linear speed of the conversion seat 6; a set of positioning discs 12 are evenly distributed on the surface of the conveyor belt of the conveyor 2; the interior of the positioning disc 12 is used to place packaged food; the distance between adjacent positioning discs 12 is the same as the distance between adjacent suction cups 11.

[0043] By placing packaged food items into the positioning tray 12, the suction cups 11 correspond one-to-one with the food packages. As the conveyor 2 and the conversion seat 6 continue to move, when one of the packaged food items moves to the bottom of the conversion seat 6, a suction cup 11 will rotate downwards to correspond with it, always ready to remove it. If a foreign object is found in the food package, the corresponding suction cup 11 will be controlled to move downwards and remove it, ensuring the uninterrupted operation of the production line.

[0044] In another embodiment of the present invention, a piston plate 13 is fixedly connected to the outside of the connecting column 10; the piston plate 13 is slidably sealed with the mounting groove 8; an air guide pipe 14 is provided inside the connecting column 10; one end of the air guide pipe 14 is connected to the suction cup 11, and the other end extends to the space between the piston plate 13 and the electric push rod 9; a one-way valve is provided inside the air guide pipe 14.

[0045] The piston plate 13 has a through hole 15 inside; a one-way valve is installed inside the through hole 15.

[0046] The conversion seat 6 has a U-shaped hole 16 at the corresponding position of the suction cup 11 inside; one end of the U-shaped hole 16 is connected to the suction cup 11 through an elastic bellows tube 17, and the other end extends to the surface of the conversion seat 6; a sliding groove 18 is provided in the middle of the U-shaped hole 16; a magnetic block 19 is slidably and sealingly fitted inside the sliding groove 18; a spring is fixedly connected between the magnetic block 19 and the sliding groove 18; an electromagnet 20 is fixedly connected to the surface of the conversion seat 6 at the corresponding position of the sliding groove 18; under normal circumstances, the magnetic block 19 keeps the U-shaped hole 16 blocked.

[0047] Upon detection of substandard food, the bottom electric push rod 9 controls the connecting column 10 and suction cup 11 to move downwards. This causes the connecting column 10 to move the piston plate 13 downwards simultaneously, creating negative pressure at the top of the mounting groove 8. The air duct 14 draws air from between the suction cup 11 and the packaged food into the top of the mounting groove 8, effectively expelling air from inside the suction cup 11 and improving its suction effect on the food package, ensuring a smooth gripping action. Afterwards, the electric push rod 9 shortens, lifting the suction cup 11 and the packaged food upwards. The piston plate 13 moves upwards simultaneously, compressing the air at the top of the mounting groove 8. The compressed air is then released outwards through the one-way valve in the through-hole 15, while the one-way valve inside the air duct 14 prevents... Air flows back to the suction cup 11, ensuring a negative pressure environment between the suction cup 11 and the food package. As the motor 7 drives the conversion seat 6 to rotate, when the suction cup 11 and the food package rotate to the window 4, the electric push rod 9 extends again and sends the food package above the discharge trough 5. At this time, the electromagnet 20 is energized and attracts the magnetic block 19, causing the magnetic block 19 to slide inside the slide 18 and no longer block the U-shaped hole 16, so that the U-shaped hole 16 is in a conductive state. Then, the air outside the suction cup 11 can enter the suction cup 11 through the U-shaped hole 16 and the corrugated pipe 17, balancing the air pressure between the suction cup 11 and the food package, thereby realizing the smooth separation of the suction cup 11 from the surface of the food package, and the food package automatically falls into the discharge trough 5.

[0048] In another embodiment of the present invention, a limiting ring 21 is fixedly connected to the opening of the mounting groove 8 to prevent the piston plate 13 from moving outward excessively and detaching from the mounting groove 8, thereby maintaining a sealed environment between the piston plate 13 and the top of the mounting groove 8.

[0049] In another embodiment of the present invention, a hollow layer 22 is formed inside the suction cup 11; a liquid dye is added inside the hollow layer 22; a set of guide holes 23 are evenly distributed between the hollow layer 22 and the inner surface of the suction cup 11. The dye inside the hollow layer 22 flows into the suction cup 11 through the multiple guide holes 23, causing a layer of dye to be distributed on the inner surface of the suction cup 11. Thus, when the suction cup 11 is adsorbed onto the surface of packaged food, a marking color can be left on the surface of the food package containing foreign objects, thereby marking unqualified food, further distinguishing it, and preventing unqualified food from being mixed with other qualified products or entering the market; in addition, by utilizing the liquid nature of the dye, which is distributed between the suction cup 11 and the food package, it can fill the tiny gaps between the suction cup 11 and the food package, further improving the vacuum degree of the suction cup 11 and enhancing the adsorption effect.

[0050] The conversion seat 6 has a supply chamber 24 inside; the supply chamber 24 stores liquid dye; an elastic hollow block 25 is fixedly connected to the side of the piston plate 13 near the electric push rod 9; an elastic element is fixedly connected inside the elastic hollow block 25; an elastic bellows tube 26 connects the elastic hollow block 25 and the supply chamber 24; a liquid guide tube 27 connects the elastic hollow block 25 and the hollow layer 22; the hollow structure of the elastic hollow block 25 and the hollow layer 22 can be produced by injection molding with a movable core or a fusible core; a one-way valve is provided inside both the bellows tube 26 and the liquid guide tube 27; under normal circumstances, the piston plate 13 maintains a state of compression on the elastic hollow block 25.

[0051] As the piston plate 13 reciprocates inside the mounting groove 8, when the piston plate 13 moves away from the electric push rod 9, the elastic hollow block 25 rebounds and expands back to its original state, generating negative pressure inside. The corrugated pipe 26 draws the dye from the supply chamber 24 into the elastic hollow block 25. When the piston plate 13 moves closer to the electric push rod 9, the end of the electric push rod 9 and the piston plate 13 can squeeze the elastic hollow block 25, forcing the dye inside into the hollow layer 22 through the liquid guide pipe 27, thereby replenishing the dye and ensuring that a sufficient amount of dye can be distributed on the inner surface of the suction cup 11 for marking operations.

[0052] In another embodiment of the present invention, an elastic retaining ring 28 is fixedly connected to the inner surface of the suction cup 11 opening; the inner side of the elastic retaining ring 28 is inclined towards the inside of the suction cup 11 and there is a gap between it and the suction cup 11. By setting the elastic retaining ring 28, if the dye on the inner surface of the suction cup 11 is excessive, the elastic retaining ring 28 can block the dye, and the excess dye can enter the gap between the elastic retaining ring 28 and the suction cup 11 along the surface of the suction cup 11, preventing it from flowing outward, dripping, and contaminating food or equipment.

[0053] A sponge ring 29 is fixedly connected between the elastic retaining ring 28 and the suction cup 11. By setting the sponge ring 29, the dye that enters between the elastic retaining ring 28 and the suction cup 11 can be retained and adsorbed inside the sponge ring 29 by utilizing the absorption effect of the sponge ring 29, further preventing excess dye from splashing or spilling out. Moreover, when the suction cup 11 is adsorbed onto the surface of the food package, the two are squeezed against each other, which can squeeze out the dye in the sponge ring 29 and re-coat the suction cup 11 and the surface of the food package, realizing secondary use.

[0054] The terms "front," "back," "left," "right," "top," and "bottom" all refer to the figures in the accompanying drawings. Figure 1 Based on the perspective of the observer, the side of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and so on.

[0055] In the description of this invention, it should be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this invention.

[0056] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A food processing X-ray foreign object detection and rejection device, comprising a gantry (1), a conveyor (2), a detection mechanism (3), and a control module; A window (4) is provided on one side of the gantry frame (1); a discharge chute (5) is provided inside the window (4); the detection mechanism (3) is located inside the gantry frame (1); the detection mechanism (3) uses X-ray to detect whether there are foreign objects in the packaged food on the surface of the conveyor (2); Its features are: It also includes a rejection mechanism; the rejection mechanism is located inside the gantry (1); the rejection mechanism is used to reject packaged food containing foreign objects; The rejection mechanism includes a rotating component; a set of adsorption components are evenly distributed on the surface of the rotating component; the rotating component controls the adsorption components to rotate, and the rotation axis is parallel to and above the conveyor (2) conveying direction.

2. The X-ray foreign object detection and rejection device for food processing according to claim 1, characterized in that: The rotating component is a conversion seat (6); the conversion seat (6) is driven and controlled to rotate by a motor (7); a set of mounting grooves (8) are evenly distributed around the surface of the conversion seat (6); an electric push rod (9) is fixedly connected inside the mounting groove (8); a connecting column (10) is fixedly connected to the output end of the electric push rod (9); the adsorption component is a suction cup (11); the suction cup (11) is fixedly connected to one end of the connecting column (10) extending outside the mounting groove (8); The conveyor (2) and the conversion seat (6) both move at a constant speed and at the same speed; a set of positioning discs (12) are evenly distributed on the surface of the conveyor belt of the conveyor (2); the interior of the positioning discs (12) is used to place packaged food; the distance between adjacent positioning discs (12) is the same as the distance between adjacent suction cups (11).

3. The X-ray foreign object detection and rejection device for food processing according to claim 2, characterized in that: A piston plate (13) is fixedly connected to the outside of the connecting column (10); the piston plate (13) and the mounting groove (8) are slidably sealed together; an air guide pipe (14) is provided inside the connecting column (10); one end of the air guide pipe (14) is connected to the suction cup (11), and the other end extends between the piston plate (13) and the electric push rod (9); a one-way valve is provided inside the air guide pipe (14).

4. The X-ray foreign object detection and rejection device for food processing according to claim 3, characterized in that: The piston plate (13) has a through hole (15) inside; a one-way valve is installed inside the through hole (15).

5. The X-ray foreign object detection and rejection device for food processing according to claim 4, characterized in that: The conversion seat (6) has a U-shaped hole (16) at the position corresponding to the suction cup (11) inside; one end of the U-shaped hole (16) is connected to the suction cup (11) through a corrugated pipe (17), and the other end extends to the surface of the conversion seat (6); a sliding groove (18) is provided in the middle of the U-shaped hole (16); a magnetic block (19) is slidably sealed inside the sliding groove (18); a spring is fixedly connected between the magnetic block (19) and the sliding groove (18); an electromagnet (20) is fixedly connected to the surface of the conversion seat (6) at the position corresponding to the sliding groove (18).

6. The X-ray foreign object detection and rejection device for food processing according to claim 3, characterized in that: A limiting ring (21) is fixedly connected to the opening of the mounting groove (8).

7. The X-ray foreign object detection and rejection device for food processing according to claim 3, characterized in that: The suction cup (11) has a hollow layer (22) inside; liquid dye is added inside the hollow layer (22); a set of guide holes (23) are evenly distributed between the hollow layer (22) and the inner surface of the suction cup (11).

8. The X-ray foreign object detection and rejection device for food processing according to claim 7, characterized in that: The conversion seat (6) has a supply chamber (24) inside; the supply chamber (24) stores liquid dye; an elastic hollow block (25) is fixedly connected to the side of the piston plate (13) near the electric push rod (9); an elastic element is fixedly connected inside the elastic hollow block (25); a second bellows pipe (26) connects the elastic hollow block (25) and the supply chamber (24); a liquid guide pipe (27) connects the elastic hollow block (25) and the hollow layer (22); a one-way valve is provided inside both the second bellows pipe (26) and the liquid guide pipe (27).

9. The X-ray foreign object detection and rejection device for food processing according to claim 7, characterized in that: An elastic retaining ring (28) is fixedly connected to the inner surface of the opening of the suction cup (11); the inner side of the elastic retaining ring (28) is inclined toward the inside of the suction cup (11) and there is a gap between it and the suction cup (11).

10. The X-ray foreign object detection and rejection device for food processing according to claim 9, characterized in that: A sponge ring (29) is fixedly connected between the elastic retaining ring (28) and the suction cup (11).

Images