Food foreign matter security inspection machine with deviation rectification function

Abstract

This invention discloses a food foreign object inspection machine with a deviation correction function, including a body, an X-ray emitting component, and an X-ray receiving component. The body is equipped with a conveying component for conveying external materials. The conveying component includes a first roller, a driving component, and a conveyor belt mounted on the first roller. The first roller is equipped with a first limiting structure, and the conveyor belt is equipped with a second limiting structure. The first limiting structure and the second limiting structure work together to limit the displacement of the conveyor belt along the axial direction of the first roller, effectively limiting the deviation of the conveyor belt, compensating for the defect of needing to frequently adjust the conveyor belt, greatly improving work efficiency while reducing labor costs.

Description

Technical Field

[0001] This invention relates to the field of food safety inspection technology, and in particular to a food foreign object inspection machine with a correction function. Background Technology

[0002] Existing food foreign object inspection machines, due to size limitations and the need to prevent X-ray radiation diffusion, have very compact channels, making the conveyor belt prone to deviation and difficult to correct. This can easily lead to machine malfunction or belt damage. There are two main methods for preventing deviation: one is a spindle-shaped roller, slightly thicker in the middle and thinner at both ends, using the thicker middle section to apply pressure to the belt and prevent it from shifting to one side. The other method involves two auxiliary rollers at the bottom of the channel, which are adjusted to form an inward and outward V-shape to compensate for manufacturing errors in the belt and channel. Both methods have significant drawbacks when used in food processing machines. First, the spindle-shaped roller has little impact in general situations. However, because food foreign object inspection machines need to detect very small foreign objects (iron filings, sand, fish bones, etc.), typically less than 1 cubic millimeter, the entire channel needs to operate very stably. The food on the conveyor belt must pass smoothly to avoid affecting the X-ray detector's judgment. The spindle-shaped roller causes uneven tension between the belt's center and sides, resulting in slight vibrations in the food being inspected, affecting the X-ray imaging results, causing blurry images and inaccurate judgments. Secondly, by using two auxiliary rollers at the bottom of the channel, with the sides facing inward or outward in a V-shape, the belt misalignment can be adjusted. However, this method has the disadvantages of long adjustment time and low timeliness due to the belt's extensibility, requiring frequent and periodic adjustments. Furthermore, due to food safety and hygiene restrictions, the belt needs to be cleaned frequently, and the preparation time is too long each time, resulting in high time costs for food factories. Summary of the Invention

[0003] To overcome the shortcomings of existing technologies, this invention provides a food foreign object inspection machine with a deviation correction function. Utilizing additional grooves on the rollers, combined with raised positioning strips built into the belt, it automatically limits belt deviation during operation. Simultaneously, by utilizing the unidirectional positioning consistency of the rollers, the positioning of the first, second, and third rollers is rigidly fixed on one side, while the other side is fixed with degrees of freedom, ensuring the flatness and operational stability of the channel system.

[0004] The technical solution adopted by this invention to solve its technical problem is: This invention provides a food foreign object inspection machine with a deviation correction function, including a body, an X-ray emitting component, and an X-ray receiving component. The body is provided with a conveying component for conveying external materials. The conveying component includes a first roller, a driving component, and a conveyor belt disposed on the first roller. The driving component is used to drive the conveyor belt to rotate via the first roller. The first roller is provided with a first limiting structure, and the conveyor belt is provided with a second limiting structure. The first limiting structure and the second limiting structure are used in conjunction to limit the displacement of the conveyor belt along the axial direction of the first roller.

[0005] Preferably, the first limiting structure is a groove located at the upper end of the first roller body along its length direction, and the second limiting structure is a guide strip accommodated in the groove. The guide strip extends along the length direction of the conveyor belt and is disposed on the inner side wall of the conveyor belt. The groove and the guide strip form a guiding fit relationship, which can continuously correct the position of the conveyor belt during operation, so that the guide strip can move stably along the groove, thereby enhancing the conveyor belt's correction capability and reducing belt edge wear.

[0006] Preferably, the conveying assembly further includes a second roller and a third roller. The second roller works in conjunction with the first roller to drive the conveyor belt to rotate. The third roller is located on the side of the first and second rollers away from the X-ray emitting assembly. The third roller supports the conveyor belt and forms an installation space for the conveyor belt. The X-ray receiving assembly is located in the installation space. The conveyor belt has a horizontal section located between the first and second rollers for carrying food. The X-ray receiving assembly is located in the installation space. By supporting the conveyor belt with the third roller, a space for installing the X-ray receiving assembly can be formed below the conveying path. This facilitates the corresponding arrangement of the X-ray receiving assembly and the X-ray scanning area, improves the overall structural compactness of the equipment, and is conducive to improving the accuracy of X-ray detection. The horizontal section effectively improves the conveying stability.

[0007] Preferably, the groove is located at one end of the roller body near the guide bar along the length direction of the roller body. The groove is radially opened along the circumferential surface of the first roller body. The guide bar is arranged in a ring on the inner side wall of the conveyor belt to partially accommodate the groove. By setting the guide bar as a ring structure and cooperating with the radially opened groove, the guide bar can always maintain a stable and limited state during the cyclic movement of the conveyor belt, thereby reducing the risk of the guide structure detaching and improving the continuity of conveying operation.

[0008] Preferably, there are two third rollers, which work together with the first and second rollers to make the installation space trapezoidal or rectangular. The two third rollers can provide multi-point support for the conveyor belt, giving the installation space a more regular contour structure, which facilitates the installation and positioning of the X-ray receiving assembly and improves the flatness of the conveyor belt in the detection area.

[0009] Preferably, a roller core is rotatably mounted on the roller body. The roller core is used to fix the roller body in a preset position. The conveyor belt is rotatably mounted via the roller body and the roller core. The roller core supports and fixes the roller body, which can keep the roller body in a stable installation position during rotation, thereby improving the rotational stability of the conveyor belt during operation and reducing the roller body sway.

[0010] Preferably, a roller core is rotatably provided on several roller bodies, and the rotation axes of the roller cores are parallel. The roller cores are fixedly set in a preset position so that the conveyor belt is rotated through the roller bodies and the roller cores. The rotation axes of the multiple roller cores remain parallel, which helps to form a consistent rotation reference between the roller bodies, thereby reducing the force deviation of the conveyor belt during the conveying process and improving the overall conveying accuracy.

[0011] Preferably, the upper end of the roller core along its length is provided with a fixing hole and a fixing position. The fixing position is located at the end of the roller core along its length away from the groove for insertion into the external mounting position. The fixing hole is located at the end of the roller core along its length near the groove for screwing with external bolts. The fixing position and the fixing hole cooperate to realize the positioning and bolting of the roller core, thereby improving the installation firmness of the roller core and facilitating subsequent disassembly and maintenance.

[0012] Preferably, the machine body is provided with a door, which is rotatably mounted on the side of the machine body to shield the conveying components and form a food flow channel with the machine body. The door can seal and protect the side of the conveying components, so that the food flows along the preset channel during the conveying process, thereby reducing the possibility of external debris entering the equipment and improving the safety of the equipment.

[0013] Preferably, the conveying assembly further includes a plate body, which is disposed between the first roller body and the second roller body. The plate body is also located between the X-ray emitting assembly and the X-ray receiving assembly. The plate body is provided with a groove for X-ray to pass through. The plate body can support the conveyor belt, so that the food maintains a relatively stable conveying state when passing through the detection area. At the same time, the groove allows X-ray to pass through, thereby reducing interference with X-ray detection while ensuring the conveying support effect.

[0014] The beneficial effects of this invention are: By utilizing the additional grooves on the roller body, combined with the guide strips on the conveyor belt, the deviation of the conveyor belt is effectively limited, making up for the defect of needing frequent adjustment of the conveyor belt, greatly improving work efficiency while reducing labor costs; and it has a wide range of applications, and can be used in packaging machines, rejection machines and other occasions of the same size and high speed, with high practicality and automation. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. The accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0017] Figure 1 This is a schematic diagram of the structure of the food foreign object inspection machine of the present invention; Figure 2 This is one of the structural schematic diagrams of the conveying component of the present invention; Figure 3 This is the second schematic diagram of the structure of the conveying component of the present invention; Figure 4 This is a schematic diagram of the roller body of the present invention; Figure 5 This is a schematic diagram of the conveyor belt structure of the present invention; Figure 6 This is a schematic diagram comparing the conveying component of the present invention with existing conveying components; Figure 7 This is a schematic diagram of the structure of the baffle and the stop member of the present invention; Figure 8 This is a schematic diagram of the structure of the food foreign object inspection machine in the third embodiment of the present invention; Figure 9 This is one of the structural schematic diagrams of the foreign matter removal module of the present invention; Figure 10 This is the second structural schematic diagram of the foreign matter removal module of the present invention.

[0018] The reference numerals in the figures include: 1. Conveying assembly; 2. Machine body; 3. X-ray receiving assembly; 4. First roller; 5. Conveyor belt; 6. Second roller; 7. Third roller; 8. Clearance channel; 9. Groove; 10. Fixing hole; 11. Fixing position; 12. Guide bar; 13. Plate; 14. Baffle; 15. Stopping element; 16. First cover; 161. Feed hopper; 17. Second cover; 171. Discharge plate; 18. Barrel; 19. Foreign matter removal module; 191. Drive assembly; 192. Actuating element. Detailed Implementation

[0019] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings.

[0020] In the description of this application, terms such as "first" and "second" are used only to distinguish different objects, not to describe a specific order. Furthermore, unless otherwise stated, " / " means "or," for example, A / B can mean A or B. "And / or" in this document is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, and B alone. Additionally, "at least one" refers to one or more, and "multiple" refers to two or more. "At least one of the following" or similar expressions refer to any combination of these items, including any combination of single or multiple items. For example, at least one of a, b, or c can represent: a, b, c; a and b; a and c; b and c; or a and b and c. Where a, b, and c can be single or multiple.

[0021] The terms “comprising” and “having”, and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or apparatus that includes a series of steps or units is not limited to the steps or units listed, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to such process, method, product, or apparatus.

[0022] In this application, the words "exemplary" or "for example" are used to indicate that something is an example, illustration, or illustration. Any embodiment or design described as "exemplary," "for example," or "for example" in this application should not be construed as being more preferred or advantageous than other embodiments or designs. Rather, the use of the words "exemplary," "for example," or "for example" is intended to present the relevant concepts in a specific manner.

[0023] It is understood that in this application, "when," "if," and "if" all refer to the device making a corresponding action under certain objective circumstances, and are not time-limited, nor do they require the device to make a judgment when it is implemented, nor do they imply any other limitations.

[0024] In this application, the use of singular designations for elements is intended to represent "one or more" rather than "one and only one," unless otherwise specified.

[0025] It is understood that in the embodiments of this application, "B corresponding to A" means that there is a correspondence between A and B, and B can be determined based on A. Determining B based on A does not mean that B is determined solely based on A; B can also be determined based on A and / or other information.

[0026] The following is a brief introduction to some relevant content, terms, or nouns involved in this application.

[0027] The first roller 4 is the motor roller, the second roller 6 is the redirecting roller, and the third roller 7 is the idler roller. Example 1 Reference Figures 1 to 10 A food foreign object inspection machine with a deviation correction function includes a body 2, an X-ray emitting component and an X-ray receiving component 3. The body 2 is provided with a conveying component 1 for conveying external materials. The conveying component 1 includes a first roller 4, a driving component and a conveyor belt 5 provided on the first roller 4. The conveyor belt 5 forms a carrying section for conveying the food to be inspected. The driving component is used to drive the conveyor belt 5 to rotate via the first roller 4. The first roller 4 is provided with a first limiting structure and the conveyor belt 5 is provided with a second limiting structure. The first limiting structure and the second limiting structure are used in conjunction to limit the displacement of the conveyor belt 5 along the axial direction of the first roller 4.

[0028] With the above-mentioned structural configuration, when in use, the first limiting structure and the second limiting structure work together to limit the displacement of the conveyor belt 5 along the axial direction of the first roller 4. This structure can axially constrain the running trajectory of the conveyor belt 5, making it less likely for the conveyor belt 5 to deviate during long-term conveying, thereby improving the stability of food conveying and reducing the occurrence of deviation of the X-ray detection area due to belt deviation.

[0029] Specifically, the first limiting structure is a groove 9 located at the upper end of the first roller body 4 along its length, and the second limiting structure is a guide strip 12 accommodated in the groove 9. The guide strip 12 extends along the length of the conveyor belt 5 and is disposed on the inner side wall of the conveyor belt 5. The groove 9 and the guide strip 12 form a guiding fit relationship, which can continuously correct the position of the conveyor belt 5 during operation, so that the guide strip 12 can move stably along the groove 9, thereby enhancing the correction capability of the conveyor belt 5 and reducing the wear of the belt edge.

[0030] The guide strip 12 can be connected to the inner wall of the conveyor belt 5 by means of integral molding, hot pressing, vulcanization, adhesive fixation or embedding, so that the guide strip 12 and the conveyor belt 5 form an integral or semi-integral limiting structure. Of course, the guide strip 12 can also be designed as a replaceable structure so that it can be maintained or replaced separately after long-term use.

[0031] The guide strip 12 is preferably made of wear-resistant elastic materials such as polyurethane, rubber, silicone rubber, TPE, or nylon, and more preferably food-grade wear-resistant materials. The outer surface of the guide strip 12 may be provided with rounded corners or arc-shaped transition parts to reduce local stress concentration when in contact with the groove 9 and reduce the risk of wear.

[0032] Specifically, the conveying assembly 1 also includes a second roller 6 and a third roller 7. The second roller 6 is used in conjunction with the first roller 4 to drive the conveyor belt 5 to rotate. The third roller 7 is located on the side of the first roller 4 and the second roller 6 away from the X-ray emitting assembly. The third roller 7 supports the conveyor belt 5 and forms an installation space for the conveyor belt 5. The X-ray receiving assembly 3 is located in the installation space. The conveyor belt 5 has a horizontal section located between the first roller 4 and the second roller 6 for carrying food. The X-ray receiving assembly 3 is located in the installation space. By supporting the conveyor belt 5 with the third roller 7, a space for installing the X-ray receiving assembly 3 can be formed below the conveying path. This facilitates the corresponding arrangement of the X-ray receiving assembly 3 with the X-ray scanning area, improves the overall structural compactness of the equipment, and is conducive to improving the accuracy of X-ray detection. The horizontal section effectively improves the conveying stability.

[0033] The X-ray receiving component 3 is arranged in the installation space formed by the conveyor belt 5 and is set in correspondence with the X-ray emitting component to form a X-ray path. Of course, the conveyor component 1 also includes a central control component, which is electrically connected to the electrical structure of the drive unit, the X-ray emitting component and the X-ray receiving component 3.

[0034] The conveyor belt 5 may be provided with baffles 14, and a number of baffles 14 are provided. The number of baffles 14 are arranged in an array on the outer wall of the conveyor belt 5. At least three baffles 14 are provided on the horizontal part. The baffles 14 and the conveyor belt 5 are integrally constructed.

[0035] The machine body 2 is provided with a stop member 15 corresponding to the baffle 14. The working end of the stop member 15 is in contact with the end of the baffle 14 away from the conveyor belt 5. The working end of the stop member 15 is made of flexible material or is made of flexible material. Preferably, the protruding direction of the baffle 14 intersects the movement direction of the horizontal part, and the included angle is an obtuse angle to reduce the friction between the end face of the baffle 14 and the stop member 15. The protruding direction of the baffle 14 is the longitudinal direction. There are two stop members 15. The two stop members 15 are respectively provided at both ends of the radiation emission assembly and are located at the feed end and discharge end of the conveyor belt 5 along its length. Preferably, each stop member 15 stops at least two baffles 14 at the same time.

[0036] Specifically, the groove 9 is located at one end of the roller body near the guide bar 12 along the length direction of the roller body. The groove 9 is radially opened along the circumferential surface of the first roller body 4. The guide bar 12 is arranged in a ring on the inner side wall of the conveyor belt 5 to partially accommodate the groove 9. By setting the guide bar 12 as a ring structure and cooperating with the radially opened groove 9, the guide bar 12 can always maintain a stable and limited state during the cyclic movement of the conveyor belt 5, thereby reducing the risk of the guide structure detaching and improving the continuity of the conveying operation.

[0037] Specifically, there are two third rollers 7. The two third rollers 7 are used in conjunction with the first roller 4 and the second roller 6 to make the installation space trapezoidal or rectangular. The two third rollers 7 can provide multi-point support for the conveyor belt 5, so that the installation space has a more regular contour structure, which facilitates the installation and positioning of the X-ray receiving assembly 3 and improves the flatness of the conveyor belt 5 in the detection area.

[0038] In this technical solution, the installation space is preferably trapezoidal. The main consideration for making the installation space trapezoidal is that, due to the size limitation of the food foreign object inspection machine, the first roller 4 and the third roller 7 are staggered in the longitudinal line of sight, and the second roller 6 and the third roller 7 are staggered. This can allow for the effective installation of the X-ray receiving component 3 while appropriately increasing the diameter of the first roller 4 and the second roller 6.

[0039] Preferably, the first roller 4 and the second roller 6 are both cylindrical in shape, the first roller 4 and the second roller 6 have the same diameter, the two third rollers 7 have the same diameter, the diameter of the first roller 4 is larger than the diameter of the third roller 7, and the diameter is the radial diameter of the roller.

[0040] The distance between the two third rollers 7 is smaller than the distance between the first roller 4 and the second roller 6.

[0041] In principle, the bending strain of the guide bar 12 can also be reduced by increasing the diameter of the first roller 4 and the second roller 6. Therefore, the guide path of existing conveying equipment in other fields usually tries to minimize small radius turning schemes. However, this scheme does not simply continue to increase the diameter of the first roller 4 and the second roller 6. Instead, while maintaining the larger diameter of the first roller 4 and the second roller 6, a third roller 7 with a smaller diameter is introduced, so that the guide bar 12 forms a non-uniform curvature running path, which is conducive to the guide bar completing the attitude transition before entering the first roller 4 and the second roller 6.

[0042] Through the above structure, the guide bar 12 forms a locally controllable bending area during operation, which allows the torsional deformation and lateral drift of the guide bar 12 to be released and corrected in advance, thereby avoiding the accumulation of distortion stress in the guide bar 12 during long-span operation. The locally controllable bending area refers to the part of the conveyor belt 5 parallel to the horizontal part, that is, the third roller body 7, which makes the conveyor belt 5 form a transition bending section near the installation space, so as to gradually guide the running posture of the guide bar 12.

[0043] Therefore, this solution does not simply reduce the maximum bending strain of the guide bar 12, but improves the guiding stability between the guide bar 12 and the groove 9 by redistributing the stress path of the guide bar 12 during operation, thereby reducing the risk of abnormal wear and groove disengagement of the guide bar 12, while also achieving a small-volume conveying assembly 1.

[0044] Specifically, a roller core is rotatably mounted on the roller body. The roller core is used to fix the roller body in a preset position. The conveyor belt 5 is rotatably mounted via the roller body and the roller core. The roller core supports and fixes the roller body, which can keep the roller body in a stable installation position during rotation, thereby improving the rotational stability of the conveyor belt 5 during operation and reducing the roller body sway.

[0045] The roller core is fixedly installed on the conveyor support, and the roller body is sleeved on the outside of the roller core and can rotate relative to the roller core.

[0046] Specifically, each of the several roller bodies is equipped with a roller core, and the rotation axes of the roller cores are parallel. The roller cores are fixedly set in a preset position so that the conveyor belt 5 is rotated through the roller bodies and roller cores. The rotation axes of the multiple roller cores remain parallel, which helps to form a consistent rotation reference between the roller bodies, thereby reducing the force deviation of the conveyor belt 5 during the conveying process and improving the overall conveying accuracy.

[0047] Specifically, the upper end of the roller core along its length is provided with a fixing hole 10 and a fixing position 11. The fixing position 11 is located at the end of the roller core away from the groove 9 along its length for insertion into an external mounting position. The fixing hole 10 is located at the end of the roller core near the groove 9 along its length for screwing with external bolts. The fixing position 11 and the fixing hole 10 cooperate to realize the positioning and bolting of the roller core, thereby improving the installation firmness of the roller core and facilitating subsequent disassembly and maintenance.

[0048] Fixing hole 10 is a bolt hole.

[0049] Specifically, the machine body 2 is equipped with a door, which is rotatably mounted on the machine body 2 to cover the side of the conveying component 1 and form a food flow channel with the machine body 2. The door can seal and protect the side of the conveying component 1, so that the food flows along the preset channel during the conveying process, thereby reducing the possibility of external debris entering the equipment and improving the safety of equipment use.

[0050] Specifically, the conveying assembly 1 also includes a plate 13, which is located between the first roller 4 and the second roller 6. The plate 13 is also located between the radiation emitting assembly and the radiation receiving assembly 3. The plate 13 is provided with a groove for radiation to pass through. The plate 13 can support the conveyor belt 5, so that the food can maintain a relatively stable conveying state when passing through the detection area. At the same time, the groove can allow radiation to pass through, thereby reducing interference with radiation detection while ensuring the conveying support effect.

[0051] The guide bar 12 is limited by the grooves 9 on several rollers to form an avoidance channel 8, which is the space through which the guide bar 12 on the inner side wall of the conveyor belt runs.

[0052] The plate 13 is provided with a clearance position for forming a clearance passage 8.

[0053] Example 2 Embodiment 2 of this application can be implemented alone or in combination with Embodiment 1 described above, and this application does not impose any restrictions.

[0054] A food foreign object inspection machine with a deviation correction function includes a body 2, an X-ray emitting component and an X-ray receiving component 3. The body 2 is provided with a conveying component 1 for conveying external materials. The conveying component 1 includes a first roller 4, a driving component and a conveyor belt 5 disposed on the first roller 4. The driving component is used to drive the conveyor belt 5 to rotate via the first roller 4. The first roller 4 is provided with a first limiting structure and the conveyor belt 5 is provided with a second limiting structure. The first limiting structure and the second limiting structure are used in conjunction to limit the displacement of the conveyor belt 5 along the axial direction of the first roller 4.

[0055] Specifically, the first limiting structure is a groove 9 located at the upper end of the first roller body 4 along its length, and the second limiting structure is a guide bar 12 accommodated in the groove 9. The guide bar 12 extends along the length of the conveyor belt 5 and is disposed on the inner side wall of the conveyor belt 5. The groove 9 and the guide bar 12 form a guiding fit relationship, which can continuously correct the position of the conveyor belt 5 during operation, so that the guide bar 12 can move stably along the groove 9, thereby enhancing the correction capability of the conveyor belt 5 and reducing the wear of the belt edge.

[0056] Specifically, the conveying assembly 1 also includes a second roller 6 and a third roller 7. The second roller 6 is used in conjunction with the first roller 4 to drive the conveyor belt 5 to rotate. The third roller 7 is located on the side of the first roller 4 and the second roller 6 away from the radiation emitting assembly. The third roller 7 is used to support the conveyor belt 5 and make the conveyor belt 5 form an installation space. The radiation receiving assembly 3 is located in the installation space.

[0057] Specifically, there are two third roller bodies 7, which are used in conjunction with the first roller body 4 and the second roller body 6 to make the installation space trapezoidal.

[0058] Specifically, the conveying assembly 1 includes a conveying bracket, and the first roller 4, the second roller 6 and the third roller 7 are all rotatably mounted on the conveying bracket. The distance between the second roller 6 and the third roller 7 is adjustable on the conveying bracket. For example, the second roller 6 and the third roller 7 are slidably mounted on the conveying bracket, and the distance between them can be adjusted by a bidirectional adjusting screw or an external driving component.

[0059] Example 3 Embodiment 3 of this application can be implemented alone or in combination with the aforementioned Embodiments 1 and 2. This application does not impose any restrictions.

[0060] The machine body 2 is also provided with a first cover 16 and a second cover 17. The first cover 16 and the second cover 17 are located at the feeding end and the discharging end of the conveying component 1, respectively. The upper part of the first cover 16 is provided with a feeding hopper 161, and the bottom of the second cover 17 is provided with a discharging plate 171. The first cover 16 and the second cover 17 are respectively used to seal the feeding end and the discharging end of the conveying component 1 to minimize the interference of external light on the equipment. The feeding hopper 161 is arranged in an inverted trapezoidal shape to further reduce the light entering. The discharging plate 171 is inclined relative to the second cover 17 to guide the food after the inspection is completed.

[0061] The discharge plate 171 extends from the second cover 17 toward the bottom and bends toward the side near the first cover 16. The bottom of the machine body 2 is provided with a bucket 18 for collecting food after the inspection is completed.

[0062] The main body 2 is equipped with a central control system and a three-color light. The central control system is used for the electrical control of the controllable components in this technical solution.

[0063] Preferably, the body 2 may also be provided with a foreign object removal module 19, which includes a drive component 191 and an action component 192 for removing foreign objects. The drive component 191 is fixedly mounted on the body 2.

[0064] The actuating element 192 is a cylindrical suction nozzle. The actuating element 192 is used to connect to an external negative pressure generator to suck out foreign objects. The actuating element 192 can be horizontal, inclined or vertical. For example, the actuating end of the actuating element 192 can protrude from the stop element 15 during operation to perform suction treatment on foreign objects.

[0065] In other embodiments, the actuating element 192 can also be a block, driven by the driving component 191 to push foreign objects out of the normal material flow path, and the actuating end of the actuating element 192 can be provided with a stop block.

[0066] The above descriptions provide one or more embodiments in conjunction with specific details, but do not imply that the specific implementation of the present invention is limited to these descriptions. Any methods or structures that are similar to or identical to those of the present invention, or any technical deductions or substitutions made based on the concept of the present invention, should be considered within the scope of protection of the present invention.

Claims

1. A food foreign object inspection machine with a correction function, comprising a body (2), an X-ray emitting assembly and an X-ray receiving assembly (3), wherein the body (2) is provided with a conveying assembly (1) for conveying external materials, the conveying assembly (1) comprising a first roller (4), a driving member and a conveyor belt (5) disposed on the first roller (4), the conveyor belt (5) forming a carrying section for conveying the food to be inspected, and the driving member driving the conveyor belt (5) to rotate via the first roller (4); characterized in that: The first roller (4) is provided with a first limiting structure, and the conveyor belt (5) is provided with a second limiting structure. The first limiting structure and the second limiting structure are used together to limit the displacement of the conveyor belt (5) along the axial direction of the first roller (4).

2. The food foreign object inspection machine with correction function according to claim 1, characterized in that: The first limiting structure is a groove (9) located at the upper end of the length direction of the first roller (4), and the second limiting structure is a guide bar (12) for housing in the groove (9). The guide bar (12) extends along the length direction of the conveyor belt (5) and is located on the inner side wall of the conveyor belt (5).

3. A food foreign object inspection machine with correction function according to claim 2, characterized in that: The conveying assembly (1) also includes a second roller (6) and a third roller (7). The second roller (6) is used in conjunction with the first roller (4) to drive the conveyor belt (5) to rotate. The third roller (7) is located on the side of the first roller (4) and the second roller (6) away from the radiation emitting assembly. The third roller (7) is used to support the conveyor belt (5) and make the conveyor belt (5) form an installation space. The conveyor belt (5) has a horizontal part located between the first roller (4) and the second roller (6) for carrying food. The radiation receiving assembly (3) is located in the installation space.

4. A food foreign object inspection machine with correction function according to claim 3, characterized in that: The groove (9) is located at one end of the roller body near the guide bar (12) along the length direction of the roller body. The groove (9) is radially opened along the circumferential surface of the first roller body (4), and the guide bar (12) is arranged in a ring.

5. A food foreign object inspection machine with correction function according to claim 3, characterized in that: There are two third roller bodies (7). The two third roller bodies (7) are used in conjunction with the first roller body (4) and the second roller body (6) to make the installation space trapezoidal or rectangular.

6. A food foreign object inspection machine with correction function according to claim 1, characterized in that: A roller core is rotatably mounted on the roller body. The roller core is used to fix the roller core in a preset position. The conveyor belt (5) is rotatably mounted via the roller body and the roller core.

7. A food foreign object inspection machine with correction function according to claim 5, characterized in that: Several roller bodies are equipped with roller cores that rotate, and the rotation axes of the roller cores are parallel. The roller cores are used to fix them in a preset position so that the conveyor belt (5) can be rotated through the roller bodies and roller cores.

8. A food foreign object inspection machine with correction function according to claim 7, characterized in that: The upper end of the roller core along the length direction is provided with a fixing hole (10) and a fixing position (11). The fixing position (11) is located at the end of the roller core along the length direction away from the groove (9) for insertion into the external installation position. The fixing hole (10) is located at the end of the roller core along the length direction close to the groove (9) for screwing with external bolts.

9. A food foreign object inspection machine with correction function according to claim 1, characterized in that: The machine body (2) is provided with a door, which is rotatably set on the side of the machine body (2) to block the conveying component (1) and form a food flow channel with the machine body (2).

10. A food foreign object inspection machine with correction function according to claim 3, characterized in that: The conveying assembly (1) also includes a plate (13), which is located between the first roller (4) and the second roller (6). The plate (13) is also located between the radiation emitting assembly and the radiation receiving assembly (3). The plate (13) is provided with a groove for radiation to pass through.

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