Novel food metal detection equipment

Abstract

The invention discloses novel food metal detection equipment, and relates to the technical field of food detection.The novel food metal detection equipment comprises a detection bin, a detection equipment box and a detection probe, and the detection equipment box is fixedly connected to the bottom end of the detection bin; a plurality of detection probes are arranged and fixedly connected to the outer side of the detection equipment box, and the detection probes are communicated with the detection equipment box through data lines. An eccentric disc is slowly driven to rotate through a servo motor, when the protruding end of an eccentric wheel passes through a groove of a fixing block, a reset spring reacts on the fixing block to enable the fixing block to move towards one side of the eccentric wheel, at the moment, the included angle between the two ends of a driving strip is decreased, an adjusting rod is pulled to slide towards the interior of a transmission rod, and therefore the distance between the opposite sides of a connecting strip is adjusted; and when metal is detected to exceed the standard, a driving motor is started to drive a transmission chain wheel to rotate, so that tank packages with different sizes can be fixed and detected, and the use flexibility of the equipment is enhanced.

Description

Technical Field

[0001] The invention relates to the technical field of food detection, in particular to a novel food metal detection device. Background Art

[0002] Food metal detector is an instrument that uses high-speed digital signal processing devices and intelligent algorithms to detect metals in frozen foods, canned foods, meat, rice, pickled foods and other foods. It uses high-speed digital signal processing devices and intelligent algorithms to improve detection accuracy and stability.

[0003] However, there are still some problems in actual use:

[0004] When sampling and testing canned food for metal, the first step is to use various equipment to perform metal detection on the intact packaging. However, the existing equipment places the sampled canned food packaging directly under the testing instrument to perform various data detection and analysis. The testing equipment is unable to comprehensively and simultaneously test the placed canned food. In particular, when there is precipitation inside the canned food during the test, causing serious local metal exceeding the standard, the can body needs to be turned over to continue testing to determine whether the metal exceeding the standard is caused by the local can body or precipitation accumulation, thereby affecting the detection efficiency and enhancing the operation steps. At the same time, excessive contact with the outside of the package, when damage occurs, affects the content inside the can body, and also affects the data accuracy. Summary of the invention

[0005] Technical issues solved

[0006] The purpose of the present invention is to make up for the deficiencies of the prior art and provide a novel food metal detection device.

[0007] Technical Solution

[0008] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a new type of food metal detection equipment, comprising a detection chamber, a detection equipment box and a detection probe, wherein the detection equipment box is fixedly connected to the bottom end of the detection chamber, a plurality of detection probes are provided and are arranged and fixedly connected to the outside of the detection equipment box, and the detection probes are connected to the detection equipment box through a data line, two opposing glass protective doors are slidably connected to the surface of the detection chamber, two symmetrical mixed angle adjustment mechanisms are movably connected inside the detection chamber, an auxiliary limiting mechanism is fixedly connected inside the mixed angle adjustment mechanism, and a spacing adjustment mechanism is relatively arranged to the mixed angle adjustment mechanism.

[0009] As described above, the hybrid angle adjustment mechanism includes a connecting ring, a driving ring, guide wheels, connecting bars, and transmission gears. The driving ring is located inside the connecting ring. A plurality of guide wheels are provided and are annularly and integrally movably connected to the inner ring of the driving ring through rotating shafts. The guide wheels are in close contact with the inner wall of the connecting ring. Sawteeth are provided on the outer ring of the driving ring, and the transmission gear penetrates through the connecting ring and meshes with the driving ring. An annular groove is provided on the outer side of the connecting ring, and both ends of the connecting bar are fixedly connected to the outer side of the driving ring through the annular groove.

[0010] As described above, the spacing adjustment mechanism includes a transmission rod, an adjustment rod, driving sprockets, a chain, and a driving motor. Two driving sprockets are provided and are connected by chain drive. One of the driving sprockets is fixedly connected to the outer side of the transmission rod, and the other driving sprocket is fixedly connected to the output end of the driving motor. Two adjustment rods are provided and the opposite sides of both extend into the interior of the transmission rod. The ends of the adjustment rods located inside the transmission rod are connected in a manner that restricts their free rotation but does not restrict left - right sliding through clamping grooves and limit blocks.

[0011] As described above, the connecting ring is movably connected to the outer side of the adjustment rod through a bearing. The transmission gears are respectively fixedly connected to the ends of the adjustment rods away from the transmission rod. The interior of the detection equipment box is cylindrical and is adapted to the connecting ring.

[0012] As described above, the spacing adjustment mechanism further includes a limit ring, a collar, a driving bar, an eccentric disk, a fixed block, a servo motor, and a return spring. The eccentric disk is fixedly connected to the output end of the servo motor. One end of the return spring is fixedly connected to one side of the limit ring, and the other end of the return spring is fixedly connected to one end of the fixed block. The driving bars are symmetrically arranged and the ends close to each other are movably connected to the interior of the fixed block through rotating shafts. The collars are respectively movably connected to the ends of the driving bars away from the fixed block through rotating shafts.

[0013] As described above, a groove is provided at the end of the fixed block away from the return spring, and the eccentric disk is in close contact with the interior of the groove. The limit ring is movably connected to the outer side of the transmission rod through a bearing. The collars are respectively movably connected to the outer side of the adjustment rod through bearings. The servo motor is fixedly connected to the interior of the detection chamber.

[0014] As described above, the auxiliary limit mechanism includes a connecting column, an electric telescopic rod, an adjustment disk, a limit plate, a support bar, and a push bar. The adjustment disk is fixedly connected to the output end of the electric telescopic rod, and the push bars are annularly and integrally arranged and are movably connected to the outer side of the adjustment disk through rotating shafts. The other ends of the push bars are respectively movably connected to the inner side of the limit plate. One end of the support bar is movably connected to the inner side of the limit plate through a bearing, and the support bar is located directly above the push bar.

[0015] As described above, the connecting column is horizontally and fixedly connected to the middle position of the connecting bar. A connecting hole is provided at the top end of the connecting column, and several connecting grooves are provided on the outer side of the connecting column, and the connecting grooves communicate with the connecting hole.

[0016] As described above, the bottom end of the electric telescopic rod is fixedly connected to the inner bottom end of the connecting hole. The adjusting disc is slidably connected to the inside of the connecting hole, and the limiting plates are arranged in an annular array on the outer side of the connecting column. One end of the support bar away from the limiting plate is movably connected to the inside of the connecting groove through a rotating shaft.

[0017] Beneficial effects:

[0018] Compared with the prior art, the novel food metal detection device has the following beneficial effects:

[0019] First, through the set spacing adjustment mechanism of the present invention, when the servo motor is started to slowly drive the eccentric disc to rotate, when the protruding end of the eccentric wheel passes through the groove of the fixed block, the return spring reacts on the fixed block, causing it to move towards the eccentric wheel side. At this time, the included angle at both ends of the driving bar becomes smaller and pulls the adjusting rod to slide into the inside of the transmission rod, thereby adjusting the distance between the opposite sides of the connecting bar. When detecting metal exceeding the standard, the driving motor is started to drive the transmission sprocket to rotate, so as to drive the transmission gear to rotate through the transmission rod and the adjusting rod, which is beneficial to fixing and detecting canned packages of different sizes, and enhancing the flexibility of equipment use.

[0020] Second, through the set mixing angle adjustment mechanism of the present invention, by using the rotation of the transmission gear, while one end guide wheel of the driving ring rotates inside the connecting bar, it drives the connecting bar to rotate around the axis of the connecting ring, which is beneficial to completely mixing the inside of the canned package by rotation. Secondly, it avoids incomplete detection of the inside and outside of the can, resulting in omission and the risk of unqualified products in the whole batch.

[0021] Third, through the set auxiliary limiting mechanism of the present invention, the electric telescopic rod is started to push the adjusting disc to slide in the connecting hole, thereby pushing the pushing bar to push the limiting plate to expand outward, so that the limiting plate closely adheres to the inner walls at both ends of the canned package, which is beneficial to quickly re-limit both ends or one end of the can to prevent it from falling off during detection.

[0022] Other advantages, objectives and features of the present invention will be described to some extent in the subsequent specification, and to some extent, will be obvious to those skilled in the art based on the study of the following text, or can be taught from the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a three-dimensional structural schematic diagram of the present invention;

[0024] Figure 2Schematic top - down three - dimensional structure diagram of the present invention;

[0025] Figure 3 Schematic structure diagram of the spacing adjustment mechanism of the present invention;

[0026] Figure 4 For the present invention Figure 3 Enlarged structure diagram at position A in the present invention;

[0027] Figure 5 Schematic structure diagram of the drive bar connection of the present invention;

[0028] Figure 6 Schematic structure diagram of the mixing angle adjustment mechanism of the present invention;

[0029] Figure 7 Schematic structure diagram of the connection ring connection of the present invention;

[0030] Figure 8 Schematic structure diagram of the auxiliary limit mechanism of the present invention.

[0031] In the figure: 1, detection bin; 2, detection equipment box; 3, detection probe; 4, glass protection door; 5, mixing angle adjustment mechanism; 501, connection ring; 502, drive ring; 503, guide wheel; 504, connection bar; 505, transmission gear; 6, auxiliary limit mechanism; 601, connection column; 602, electric telescopic rod; 603, adjustment disk; 604, limit plate; 605, support bar; 606, push bar; 7, spacing adjustment mechanism; 701, transmission rod; 702, adjustment rod; 703, drive sprocket; 704, chain; 705, drive motor; 706, limit ring; 707, collar; 708, drive bar; 709, eccentric disk; 7010, fixed block; 7011, servo motor; 7012, return spring; 8, annular groove; 9, connection hole; 10, connection slot. Detailed implementation manners

[0032] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0033] Such as Figure 1-8As shown in the figure, the present invention provides a technical solution: a new type of food metal detection device, including a detection chamber 1, a detection equipment box 2 and a detection probe 3. The detection equipment box 2 is fixedly connected to the bottom end of the detection chamber 1. There are several detection probes 3 which are arranged and fixedly connected to the outside of the detection equipment box 2, and the detection probes 3 are connected to the detection equipment box 2 through data lines. Two pairs of sliding glass protection doors 4 are provided on the surface of the detection chamber 1. Two symmetrical mixing angle adjustment mechanisms 5 are movably connected inside the detection chamber 1. An auxiliary limit mechanism 6 is fixedly connected inside the mixing angle adjustment mechanism 5. A spacing adjustment mechanism 7 is provided opposite to the mixing angle adjustment mechanism 5.

[0034] During use, open the glass protection doors 4 to both sides, and then align the two ends of the canned packaging with the connecting columns 601. At this time, start the servo motor 7011 to slowly drive the eccentric disc 709 to rotate. When the protruding end of the eccentric wheel passes through the groove of the fixed block 7010, the return spring 7012 reacts on the fixed block 7010, causing it to move towards the eccentric wheel side. At this time, the included angle at both ends of the driving bar 708 becomes smaller and pulls the adjusting rod 702 to slide inside the transmission rod 701, which is beneficial to fixing and detecting canned packages of different sizes, enhancing the flexibility of equipment use. Then, pull the connecting ring 501 to slide towards the opposite side inside the detection chamber 1 until the connecting column 601 abuts against the two ends of the canned packaging. Then, judge whether to perform secondary fixation according to the shape of the packaging at both ends of the can. When it is necessary to strengthen the fixation at one or both ends, start the electric telescopic rod 602 to push the adjusting disc 603 to slide in the connecting hole 9, thereby pushing the pushing bar 606 to push the limiting plate 604 to expand, so that the limiting plate 604 closely adheres to the inner walls at both ends of the canned packaging, which is beneficial to quickly re-limit one or both ends of the can to prevent it from falling off during detection. After the preparation work is completed, close the glass protection doors 4, and at the same time start the driving motor 705 to drive the transmission sprocket to rotate, thereby causing the transmission gear 505 to rotate through the transmission rod 701 and the adjusting rod 702. Then, while one end guide wheel 503 of the driving ring 502 rotates inside the connecting bar 504, drive the connecting bar 504 to rotate around the axis of the connecting ring 501, which is beneficial to completely mix the inside of the canned packaging by rotation. Secondly, it avoids incomplete detection of the inside and outside of the can, resulting in omission and the risk of unqualified whole batches of products. At this time, the canned packaging rotates to receive surface and internal metal detection by the detection probe 3 to judge whether it exceeds the standard.

[0035] Such as Figure 1 、 Figure 2 、 Figure 3 、 Figure 6 and Figure 7As shown in the figure, the mixing angle adjustment mechanism 5 includes a connecting ring 501, a driving ring 502, a guide wheel 503, a connecting bar 504, and a transmission gear 505. The driving ring 502 is located inside the connecting ring 501. Several guide wheels 503 are provided and are movably connected in a circular array to the inner ring of the driving ring 502 through a rotating shaft. The guide wheels 503 are in close contact with the inner wall of the connecting ring 501. Sawteeth are provided on the outer ring of the driving ring 502, and the transmission gear 505 passes through the connecting ring 501 and meshes with the driving ring 502. An annular groove 8 is provided on the outer side of the connecting ring 501, and both ends of the connecting bar 504 are fixedly connected to the outer side of the driving ring 502 through the annular groove 8.

[0036] By rotating the transmission gear 505, while one end of the driving ring 502 drives the guide wheel 503 to rotate inside the connecting bar 504, the connecting bar 504 is driven to rotate around the axis of the connecting ring 501, which is beneficial to completely mix the inside of the tank body packaging by rotation. Secondly, it avoids incomplete detection of the inside and outside of the tank body, thus preventing omission and reducing the risk of unqualified products in the whole batch.

[0037] As Figure 1-7As shown, the spacing adjustment mechanism 7 includes a transmission rod 701, an adjustment rod 702, a driving sprocket 703, a chain 704, and a driving motor 705. There are two driving sprockets 703 which are connected by chain drive. One of the driving sprockets 703 is fixedly connected to the outside of the transmission rod 701, and the other driving sprocket 703 is fixedly connected to the output end of the driving motor 705. There are two adjustment rods 702, and the opposite sides of both extend into the inside of the transmission rod 701. The inner ends of the adjustment rods 702 located inside the transmission rod 701 are connected in a way that restricts their free rotation but not left - right sliding through a slot and a limiting block. The connecting ring 501 is movably connected to the outside of the adjustment rod 702 through a bearing. The transmission gears 505 are respectively fixedly connected to the ends of the adjustment rods 702 far from the transmission rod 701. The inside of the detection equipment box 2 is cylindrical and is adapted to the connecting ring 501. The spacing adjustment mechanism 7 further includes a limiting ring 706, a collar 707, a driving bar 708, an eccentric disk 709, a fixing block 7010, a servo motor 7011, and a return spring 7012. The eccentric disk 709 is fixedly connected to the output end of the servo motor 7011. One end of the return spring 7012 is fixedly connected to one side of the limiting ring 706, and the other end of the return spring 7012 is fixedly connected to one end of the fixing block 7010. The driving bars 708 are symmetrically arranged, and the ends close to each other are movably connected to the inside of the fixing block 7010 through a rotating shaft. The collars 707 are respectively movably connected to the ends of the driving bars 708 far from the fixing block 7010. A groove is provided at one end of the fixing block 7010 far from the return spring 7012, and the eccentric disk 709 is closely attached to the inside of the groove. The limiting ring 706 is movably connected to the outside of the transmission rod 701 through a bearing. The collars 707 are respectively movably connected to the outside of the adjustment rod 702 through a bearing. The servo motor 7011 is fixedly connected to the inside of the detection chamber 1.

[0038] By starting the servo motor 7011 to slowly drive the eccentric disk 709 to rotate, when the protruding end of the eccentric wheel passes through the groove of the fixing block 7010, the return spring 7012 reacts on the fixing block 7010, causing it to move towards the eccentric wheel side. At this time, the included angle between the two ends of the driving bar 708 becomes smaller, and at the same time, it pulls the adjustment rod 702 to slide into the inside of the transmission rod 701, thereby adjusting the distance between the opposite sides of the connecting bar 504. When detecting metal exceeding the standard again, start the driving motor 705 to drive the transmission sprocket to rotate, and thus drive the transmission gear 505 to rotate through the transmission rod 701 and the adjustment rod 702, which is beneficial to meeting the fixed detection of tank packages of different sizes and enhancing the flexibility of equipment use.

[0039] As Figure 1 、 Figure 2 、 Figure 3 and Figure 8The auxiliary limiting mechanism 6 includes a connecting column 601, an electric telescopic rod 602, an adjusting disk 603, a limiting plate 604, a supporting bar 605 and a pushing bar 606. The adjusting disk 603 is fixedly connected to the output end of the electric telescopic rod 602, and the pushing bar 606 is arranged in a ring shape and is movably connected to the outer side of the adjusting disk 603 through a rotating shaft. The other end of the pushing bar 606 is movably connected to the inner side of the limiting plate 604 through a rotating shaft. One end of the supporting bar 605 is movably connected to the inner side of the limiting plate 604 through a bearing, and the supporting bar 605 is located at the pushing bar 606. Directly above, the connecting column 601 is laterally fixedly connected to the middle position of the connecting strip 504, a connecting hole 9 is opened at the top of the connecting column 601, and several connecting grooves 10 are opened on the outside of the connecting column 601, and the connecting grooves 10 are connected to the connecting hole 9, the bottom end of the electric telescopic rod 602 is fixedly connected to the inner bottom end of the connecting hole 9, the adjusting disk 603 is slidably connected to the inside of the connecting hole 9, and the limit plate 604 is located on the outside of the connecting column 601 in a ring array, and the end of the support bar 605 away from the limit plate 604 is movably connected to the inside of the connecting groove 10 through a rotating shaft.

[0040] The electric telescopic rod 602 pushes the adjustment disk 603 to slide in the connecting hole 9, thereby pushing the pushing bar 606 to push the limiting plate 604 outward to expand, so that the limiting plate 604 is close to the inner walls at both ends of the can packaging, which is conducive to quickly re-limiting both ends or one end of the can to prevent it from falling off during detection.

[0041] Working principle: When in use, open the glass protection door 4 to both sides, and then align the two ends of the can packaging with the connecting column 601. At this time, start the servo motor 7011 to slowly drive the eccentric disk 709 to rotate. When the protruding end of the eccentric wheel passes through the groove of the fixed block 7010, the reset spring 7012 reacts on the fixed block 7010 to move it to one side of the eccentric wheel. At this time, the angle between the two ends of the driving bar 708 becomes smaller and the adjusting rod 702 is pulled to slide inside the transmission rod 701, and then the connecting ring 501 is pulled to slide to the opposite side inside the detection chamber 1 until the connecting column 601 supports the two ends of the can packaging. Then, according to the shape of the packaging at both ends of the can body, it is determined whether to fix it for the second time. If one or both ends need to be fixed, When strengthening the fixation, start the electric telescopic rod 602 to push the adjusting disk 603 to slide in the connecting hole 9, thereby pushing the pushing bar 606 to push the limit plate 604 outward to expand, so that the limit plate 604 is close to the inner walls of the two ends of the can packaging. After the preparation work is completed, close the glass protection door 4, and start the driving motor 705 at the same time to drive the transmission sprocket to rotate, thereby causing the transmission gear 505 to rotate through the transmission rod 701 and the adjusting rod 702, and then the guide wheel 503 at one end of the driving ring 502 rotates inside the connecting bar 504, while driving the connecting bar 504 to rotate around the axis of the connecting ring 501. At this time, the can packaging rotates to accept the detection probe 3 for surface and internal metal detection to determine whether it exceeds the standard.

[0042] It should be noted that in this text, the orientation or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the orientation or positional relationships shown in the drawings. These are only for the convenience of describing the present 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 operated in a specific orientation. Therefore, it should not be construed as a limitation to the present invention; the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance. In addition, unless otherwise clearly specified and defined, the terms "fixedly installed", "installed", "connected", "connected to" should be understood in a broad sense. For example, "installed" can be a fixed connection, a detachable connection, or an integral connection; "connected" can be a mechanical connection or an electrical connection; "connected to" can be a direct connection, an indirect connection through an intermediate medium, or a connection inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0043] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A novel food metal detection device, comprising a detection chamber (1), a detection device box (2) and a detection probe (3), characterized in that: The detection device box (2) is fixedly connected to the bottom end of the detection chamber (1); a plurality of detection probes (3) are arranged and fixedly connected to the outside of the detection device box (2); and the detection probes (3) are connected to the detection device box (2) via a data line; two glass protective doors (4) that open opposite to each other are slidably connected to the surface of the detection chamber (1); two symmetrical mixing angle adjustment mechanisms (5) are movably connected inside the detection chamber (1); an auxiliary limiting mechanism (6) is fixedly connected inside the mixing angle adjustment mechanism (5); and a spacing adjustment mechanism (7) is arranged opposite to the mixing angle adjustment mechanism (5).

2. A novel food metal detection device according to claim 1, characterized in that: The mixing angle adjustment mechanism (5) comprises a connecting ring (501), a driving ring (502), a guide wheel (503), a connecting strip (504) and a transmission gear (505); the driving ring (502) is located inside the connecting ring (501); a plurality of guide wheels (503) are provided and are movably connected to the inner ring of the driving ring (502) in a circular arrangement through a rotating shaft; the guide wheel (503) is tightly attached to the inner wall of the connecting ring (501); the outer ring of the driving ring (502) is provided with saw teeth; the transmission gear (505) penetrates the connecting ring (501) and meshes with the driving ring (502); an annular groove (8) is provided on the outer side of the connecting ring (501); and both ends of the connecting strip (504) are fixedly connected to the outer side of the driving ring (502) through the annular groove (8).

3. A novel food metal detection device according to claim 1, characterized in that: The spacing adjustment mechanism (7) comprises a transmission rod (701), an adjustment rod (702), a driving sprocket (703), a chain (704) and a driving motor (705); two driving sprockets (703) are provided and are connected in transmission through the chain (704); one of the driving sprockets (703) is fixedly connected to the outside of the transmission rod (701), and the other driving sprocket (703) is fixedly connected to the output end of the driving motor (705); two adjustment rods (702) are provided and opposite sides thereof extend into the interior of the transmission rod (701); one end of the adjustment rod (702) located in the interior of the transmission rod (701) is connected in a manner such that the free rotation thereof is restricted but the left-right sliding is not restricted, through a slot and a limit block.

4. A novel food metal detection device according to claim 2, characterized in that: The connecting ring (501) is movably connected to the outer side of the adjusting rod (702) via a bearing, and the transmission gears (505) are respectively fixedly connected to one end of the adjusting rod (702) away from the transmission rod (701), and the interior of the detection device box (2) is cylindrical and matched with the connecting ring (501).

5. The novel food metal detection device according to claim 3 is characterized by: The spacing adjustment mechanism (7) further comprises a limiting ring (706), a sleeve ring (707), a driving strip (708), an eccentric disk (709), a fixed block (7010), a servo motor (7011) and a return spring (7012); the eccentric disk (709) is fixedly connected to the output end of the servo motor (7011); one end of the return spring (7012) is fixedly connected to one side of the limiting ring (706), and the other end of the return spring (7012) is fixedly connected to one end of the fixed block (7010); the driving strips (708) are symmetrically arranged and are close to each other at one end and are movably connected to the inside of the fixed block (7010) via a rotating shaft; and the sleeve rings (707) are movably connected to one end of the driving strip (708) away from the fixed block (7010) via a rotating shaft.

6. A novel food metal detection device according to claim 5, characterized in that: A groove is formed at one end of the fixing block (7010) away from the reset spring (7012), and the eccentric disk (709) is closely attached to the inside of the groove; the limiting ring (706) is movably connected to the outside of the transmission rod (701) via a bearing; the sleeve ring (707) is movably connected to the outside of the adjustment rod (702) via a bearing; and the servo motor (7011) is fixedly connected to the inside of the detection chamber (1).

7. A novel food metal detection device according to claim 1, characterized in that: The auxiliary limiting mechanism (6) comprises a connecting column (601), an electric telescopic rod (602), an adjusting disk (603), a limiting plate (604), a supporting bar (605) and a pushing bar (606); the adjusting disk (603) is fixedly connected to the output end of the electric telescopic rod (602); the pushing bar (606) is arranged in a ring shape and is movably connected to the outer side of the adjusting disk (603) through a rotating shaft; the other end of the pushing bar (606) is movably connected to the inner side of the limiting plate (604) through a rotating shaft; one end of the supporting bar (605) is movably connected to the inner side of the limiting plate (604) through a bearing; and the supporting bar (605) is located directly above the pushing bar (606).

8. A novel food metal detection device according to claim 7, characterized in that: The connecting column (601) is laterally fixedly connected to the middle position of the connecting strip (504), a connecting hole (9) is provided at the top of the connecting column (601), a plurality of connecting grooves (10) are provided on the outer side of the connecting column (601), and the connecting grooves (10) are connected to the connecting hole (9).

9. The novel food metal detection device according to claim 7, characterized in that: The bottom end of the electric telescopic rod (602) is fixedly connected to the inner bottom end of the connecting hole (9), the adjusting disk (603) is slidably connected to the inside of the connecting hole (9), and the limiting plates (604) are arranged in a ring array on the outside of the connecting column (601), and one end of the supporting bar (605) away from the limiting plates (604) is movably connected to the inside of the connecting groove (10) via a rotating shaft.

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