Food detection device

Abstract

The invention provides a food detection device, and belongs to the technical field of food detection. The food detection device comprises a first conveying mechanism, a second conveying mechanism, a reversing conveying mechanism, a third conveying mechanism, a fixing plate, a mounting frame, a moving mechanism, a first moving plate, a first detector, an adjusting mechanism, an adjusting plate, a second detector, a first lifting mechanism, a lifting plate and a third detector. The moving mechanism drives the first detecting instrument to move in the X-axis direction, the adjusting mechanism drives the second detecting instrument to move in the Y-axis direction, and the first lifting mechanism drives the third detecting instrument to move in the Z-axis direction, so that the first detecting instrument, the second detecting instrument and the third detecting instrument can detect boxed food in different directions in sequence; therefore, the specific position of the metal-containing food can be found, workers do not need to detect the food one by one, the metal-containing food can be found in a short time and replaced, and the working efficiency of products is improved.

Description

Technical Field

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

[0002] In the related art, after the food is packaged, it is necessary to box the food so that the product can be shipped later. After the food is boxed, in order to prevent the food from containing metal foreign matter, a metal detection device is required to perform metal detection on the boxed food.

[0003] The prior art (Chinese invention patent, authorization announcement number: CN211263421U) discloses a food metal detector, including a detection platform, a rotating motor is fixedly installed on the front side of the detection platform near the left end, a No. 1 rotating shaft is provided at the rear end of the rotating motor, a driving wheel is fixedly installed on the periphery of the No. 1 rotating shaft, a driven wheel is provided on the right side of the driving wheel, a No. 2 rotating shaft is provided inside the driven wheel, and a conveyor belt is provided between the driving wheel and the driven wheel. A support rod is fixed at the bottom end of the detection platform near the corner position, four groups of the support rods are provided with cross bars near the bottom end, a slide plate is installed at the left end of the detection platform, an inner rod is fixedly installed on the upper end of the detection platform, two groups of the inner rods are provided with outer rods, and a No. 1 bearing plate is fixedly installed between the two groups of the outer rods; the accuracy of metal detection is ensured, the height adjustment function is good, the safety is good, and the function of conveniently separating food with metal is achieved.

[0004] In this prior art, although it is possible to perform metal detection on packed food and determine whether there is metal in the box, it is impossible to determine the specific location of the food containing metal. As a result, staff are required to inspect the food one by one, and it is impossible to replace the food in a short time, which affects work efficiency. Summary of the Invention

[0005] In order to solve the problem in the above-mentioned prior art that the specific location of the food containing metal cannot be determined, which requires staff to inspect the food one by one, and thus cannot replace the food in a short time, affecting work efficiency, the present invention provides a food detection device, which uses a moving mechanism to drive the first detector along the X-axis direction, the adjustment mechanism to drive the second detector along the Y-axis direction, and the first lifting mechanism to drive the third detector along the Z-axis direction, so that the first detector, the second detector and the third detector can successively detect the packed food in different directions, thereby finding the specific location of the food containing metal, without the need for staff to inspect the food one by one, thereby achieving the effect of finding the food containing metal in a short time and replacing it, thereby improving the work efficiency of the product. Its specific technical solution is: A food detection device, the food detection device includes: a first conveying mechanism, a second conveying mechanism, a reversing conveying mechanism, a third conveying mechanism, a fixed plate, a mounting frame, a moving mechanism, a first moving plate, a first detector, an adjustment mechanism, an adjustment plate, a second detector, a first lifting mechanism, a lifting plate and a third detector; a metal detector is installed on the first conveying mechanism; the second conveying mechanism is located on one side of the first conveying mechanism, and there is a gap between the second conveying mechanism and the first conveying mechanism; the reversing conveying mechanism is located between the first conveying mechanism and the second conveying mechanism; the third conveying mechanism is located on one side of the reversing conveying mechanism, and the third conveying mechanism is perpendicular to the first conveying mechanism; two fixed plates are installed On both sides of the third conveying mechanism; both sides of the mounting frame are respectively mounted on two fixed plates, and the mounting frame is wrapped around the outside of the third conveying mechanism; the moving mechanism is mounted on the top of the mounting frame; the first moving plate is connected to the moving mechanism; the first detector is located in the mounting frame, and the first detector is connected to the first moving plate; the adjusting mechanism is mounted on an inner wall of the mounting frame, and the adjusting mechanism is perpendicular to the moving mechanism; the adjusting plate is located in the mounting frame, and the adjusting plate is connected to the adjusting mechanism; the second detector is mounted on the adjusting plate; the first lifting mechanism is mounted on the other inner wall of the mounting frame; the lifting plate is located in the mounting frame, and the lifting plate is connected to the first lifting mechanism; the third detector is mounted on the lifting plate.

[0006] In addition, the food detection device in the above technical solution provided by the present invention may also have the following additional technical features: In the above technical solution, the reversing transmission mechanism includes: a first support frame, a second support frame, a first rotating shaft, a first transmission wheel, a third support frame, a hanger, a second rotating shaft, a second transmission wheel, a support plate, a third rotating shaft, a third transmission wheel and a second lifting mechanism; at least two first support frames are installed between the first transmission mechanism and the second transmission mechanism; the second support frame is U-shaped, and the second support frame is simultaneously installed on at least two first support frames; the two first rotating shafts are located in the second support frame, and the two first rotating shafts are simultaneously connected to the second support frame for rotation; at least two first transmission wheels are mounted on the outside of the first rotating shaft; the third support frame is U-shaped, the third support frame is placed in the second support frame, and the second support frame and the third support frame are staggered; the hanger is L-shaped, and the hanger is installed Mounted on an inner wall of the third support frame; the two second rotating shafts are located in the hanger, and the two ends of the two second rotating shafts are respectively rotatably connected to the hanger and the third support frame, and the second rotating shaft is perpendicular to the first rotating shaft; the two second transmission wheels are respectively mounted on the outside of the two second rotating shafts; the two support plates are installed at the bottom of the third support frame, and the two support plates are located between the two first rotating shafts; the two ends of the two third rotating shafts are respectively rotatably connected to the two support plates, and the third rotating shaft is perpendicular to the first rotating shaft; the two third transmission wheels are respectively mounted on the outside of the two third rotating shafts; at least two second lifting mechanisms are respectively mounted in at least two first support frames, and at least two second lifting mechanisms are simultaneously connected to the third support frame; wherein the second transmission wheel and the third transmission wheel are at the same height.

[0007] In the above technical solution, the reversing transmission mechanism also includes: a fourth rotating shaft, a first synchronous wheel, a second synchronous wheel, a first synchronous belt, a third synchronous wheel, a fourth synchronous wheel, a second synchronous belt, a fifth synchronous wheel, a third synchronous belt and a notch; the two fourth rotating shafts are located in the third support frame, and the two ends of the two fourth rotating shafts are rotatably connected to the third support frame; the two first synchronous wheels are respectively mounted on the outer sides of the two fourth rotating shafts; the two second synchronous wheels are respectively connected to the two second rotating shafts; the first synchronous belt is simultaneously mounted on the outer sides of the first synchronous wheel and the second synchronous wheel; the two third synchronous wheels are respectively mounted on the outer sides of the two fourth rotating shafts; the two fourth synchronous wheels are respectively connected to the two third rotating shafts; the second synchronous belt is simultaneously mounted on the outer sides of the third synchronous wheel and the fourth synchronous wheel; the two fifth synchronous wheels are respectively connected to the two fourth rotating shafts, and the two fifth synchronous wheels are located on the outer sides of the third support frame; the third synchronous belt is simultaneously mounted on the outer sides of the two fifth synchronous wheels; the notch is provided on a side wall of the third support frame close to the first transmission mechanism, and the notch is located below one of the first rotating shafts; wherein the fourth rotating shaft is located below the second rotating shaft and the third rotating shaft.

[0008] In the above technical solution, the reversing transmission mechanism also includes: a sixth synchronous wheel, a fourth synchronous belt, a first motor frame, a first motor body, a second motor frame and a second motor body; the two sixth synchronous wheels are respectively connected to the two first rotating shafts, and the two sixth synchronous wheels are located on the outside of the first support frame; the fourth synchronous belt is simultaneously mounted on the outside of the two fourth synchronous wheels; the first motor frame is installed on the outside of the first support frame; the first motor body is installed on the first motor frame, and the first motor body is connected to the first rotating shaft; the second motor frame is installed on the outside of the second support frame; the second motor body is installed on the second motor frame, and the second motor body is connected to the fourth rotating shaft.

[0009] In the above technical scheme, the reversing transmission mechanism also includes: a first fixed frame, a first lead screw, a first optical bar, a first lifting block, a second lifting block and a first baffle; the two first fixed frames are respectively installed on both sides of the top of the second transmission mechanism; a first external thread is provided on the outer wall of the first lead screw, one end of the first lead screw is rotatably connected to one side of the top of the second transmission mechanism, and the other end of the first lead screw is rotatably connected to a first fixed frame; one end of the first optical bar is connected to the other side of the top of the second transmission mechanism, and the other end of the first optical bar is connected to another first fixed frame; a first threaded hole is provided in the first lifting block, and a first internal thread is provided in the first threaded hole, and the first threaded hole of the first lifting block is sleeved on the outside of the first lead screw; the second lifting block is sleeved on the outside of the first optical bar; the first baffle is connected to the first lifting block and the second lifting block at the same time, and the first baffle is located above the third support frame; wherein, the first external thread is adapted to the first internal thread.

[0010] In the above technical scheme, the second lifting mechanism includes: a first cylinder, a first guide rod, a first guide seat, a first linear bearing and a first limit plate; the first cylinder is provided with a first output shaft, the first cylinder is installed in the first support frame, the first output shaft of the first cylinder passes through the bottom of the second support frame, and the first output shaft of the first cylinder is connected to the third support frame; one end of the two first guide rods is connected to the third support frame, and the other ends of the two first guide rods pass through the second support frame and the third support frame in sequence; the two first guide seats are installed in the first support frame, and the two first guide seats are respectively arranged around the outside of the two first guide rods; the two first linear bearings are respectively installed in the two first guide seats, and the two first linear bearings are respectively mounted on the outside of the two first guide rods; the two first limit plates are respectively connected to the other ends of the two first guide rods, and the two first limit plates are respectively located below the two first guide seats.

[0011] In the above technical scheme, the food detection device also includes: a second fixed frame, a third motor body, a second lead screw, a second movable plate, a second optical bar, a connecting rod and a second baffle; the second fixed frame is installed on one end of the third conveying mechanism away from the reversing conveying mechanism; the third motor body is installed on the second fixed frame; a second external thread is provided on the outer wall of the second lead screw, one end of the second lead screw is rotatably connected to the third conveying mechanism, and the other end of the second lead screw is connected to the third motor body; a second threaded hole is provided in the second movable plate, and a second internal thread is provided in the second threaded hole, the second movable plate is located in the second fixed frame, and the second lead screw passes through the second threaded hole of the second movable plate; one end of the second optical bar is connected to the second fixed frame, the other end of the second optical bar is connected to the third conveying mechanism, and the second optical bar passes through the second movable plate; one end of the two connecting rods is connected to the second movable plate; the second baffle is connected to the other end of the two connecting rods, and the second baffle is located above the third conveying mechanism; wherein, the second external thread is adapted to the second internal thread.

[0012] In the above technical scheme, the food detection device also includes: a limit seat, a second cylinder, a guide plate, a guide plate, a second guide rod, a second guide seat, a second linear bearing and a second limit plate; the two limit seats are respectively installed on both sides of the top of the third conveying mechanism, and the two limit seats are arranged opposite to each other; the second cylinder is provided with a second output shaft, and the two second cylinders are respectively installed on the two limit seats; the two guide plates are respectively connected to the second output shafts of the two second cylinders, and the two guide plates are located between the two limit seats; one end of the two guide plates is respectively connected to the two guide plates, and the other ends of the two guide plates extend away from the center line direction of the third conveying mechanism; one end of the two second guide rods is respectively connected to the two guide plates, and the other ends of the two second guide rods pass through the two limit seats respectively; the two second guide seats are respectively installed on the two limit seats, and the two second guide seats are respectively wrapped around the outside of the two second guide rods; the two second linear bearings are respectively installed in the two second guide seats, and the two second linear bearings are respectively sleeved on the outside of the two second guide rods; the two second limit plates are respectively connected to the other ends of the two second guide rods.

[0013] In the above technical solution, the moving mechanism includes: a give way groove, a first mounting plate, a third threaded hole, a third lead screw, a third optical bar and a fourth motor body; the give way groove is arranged at the top of the mounting frame, and at least part of the first movable plate is located in the give way groove; the two first mounting plates are installed at the top of the mounting frame, and the two first mounting plates are located on both sides of the give way groove; a third internal thread is provided in the third threaded hole, and the third threaded hole is provided in the first movable plate; a third external thread is provided on the outer wall of the third lead screw, and the two ends of the third lead screw are respectively rotatably connected to the two first mounting plates, and the third lead screw passes through the third threaded hole; the two ends of the third optical bar are respectively connected to the two first mounting plates, and the third optical bar passes through the first movable plate; the fourth motor body is installed at the top of the mounting frame, and the fourth motor body is connected to the third lead screw; wherein, the third external thread is adapted to the third internal thread.

[0014] In the above technical solution, the first lifting mechanism includes: a fourth threaded hole, a fifth motor body, a fourth lead screw and a fourth optical bar; a fourth internal thread is provided in the fourth threaded hole, and the fourth threaded hole is provided in the lifting plate; the fifth motor body is installed on the top of the mounting frame; a fourth external thread is provided on the outer wall of the fourth lead screw, one end of the fourth lead screw is connected to the fifth motor body, and the other end of the fourth lead screw is rotatably connected to the top of the third transmission mechanism, and the fourth lead screw passes through the fourth threaded hole; one end of the fourth optical bar is connected to the top of the mounting frame, and the other end of the fourth optical bar is connected to the top of the third transmission mechanism, and the fourth optical bar passes through the lifting plate; wherein, the fourth internal thread is adapted to the fourth external thread.

[0015] In the above technical solution, the adjustment mechanism includes: a second mounting plate, a fifth threaded hole, a fifth lead screw and a fifth optical bar; the two second mounting plates are mounted on the inner wall of the mounting frame; a fifth internal thread is provided in the fifth threaded hole, and the fifth threaded hole is provided in the adjustment plate; a fifth external thread is provided on the outer wall of the fifth lead screw, and the two ends of the fifth lead screw are respectively rotatably connected to the two second mounting plates, and the fifth lead screw passes through the fifth threaded hole; the two ends of the fifth optical bar are respectively connected to the two second mounting plates, and the fifth optical bar passes through the adjustment plate.

[0016] Compared with the prior art, the food detection device of the present invention has the following beneficial effects: 1. By having the moving mechanism drive the first detector along the X-axis, the adjusting mechanism drive the second detector along the Y-axis, and the first lifting mechanism drive the third detector along the Z-axis, the first, second, and third detectors can sequentially inspect the packaged food in different directions, thereby locating the specific location of food containing metal, eliminating the need for staff to inspect each food item individually. This allows metal-containing food to be found and replaced quickly, improving product efficiency. By locating the reversing conveyor mechanism between the first, second, and third conveyor mechanisms, the conveying direction of the reversing conveyor mechanism can be adjusted to transfer metal-containing and non-metal-containing food to the second and third conveyor mechanisms, respectively, thereby classifying the food for subsequent processing and further improving the product user experience.

[0017] 2. When the metal detector does not detect metal in the food, the boxed food removed from the first conveyor mechanism will be moved to the multiple first conveyor wheels; then, the first rotating shaft is rotated to cause the first rotating shaft to drive the first conveyor wheels to rotate, so that the multiple first conveyor wheels cooperate to drive the boxed food to move to the second conveyor mechanism, so that the second conveyor mechanism can drive the boxed food to the predetermined position; at this time, the highest points of the second and third conveyor wheels are lower than the highest point of the first conveyor wheel, so that the second and third conveyor wheels will not come into contact with the box containing the food, thereby preventing the second and third conveyor wheels from interfering with the box and further preventing damage to the box. When the metal detector detects that the food contains metal, the two second lifting mechanisms are started, so that the multiple second lifting mechanisms drive the third support frame to move upward, so that the highest points of the second conveyor wheels and the third conveyor wheels are higher than the highest point of the first conveyor wheel; then, the first conveyor mechanism drives the boxed food to move, so that the boxed food is moved to the second conveyor wheel and the third conveyor wheel; then, the second rotating shaft and the third rotating shaft are rotated at the same time, so that the second rotating shaft and the third rotating shaft drive the second conveyor wheel and the third conveyor wheel to rotate respectively, so that the second conveyor wheel and the third conveyor wheel cooperate to drive the boxed food to move to the third conveyor mechanism, thereby realizing the classification of the food for subsequent processing of the food.

[0018] 3. The fourth rotating shaft simultaneously drives the second and third rotating shafts to rotate, achieving synchronous rotation of the second and third rotating shafts, thereby achieving synchronous rotation of the second and third conveyor wheels, thereby enhancing the efficiency of the second and third conveyor wheels in moving the boxed food. Furthermore, the fourth rotating shaft drives the second rotating shaft via the first and second synchronous pulleys, and the first synchronous belt, and the third rotating shaft via the third synchronous pulley, the fourth synchronous pulley, and the second synchronous belt. The fourth rotating shaft is positioned below the second and third rotating shafts. This ensures synchronous rotation of the second and third rotating shafts, while preventing interference between the fourth rotating shaft and the first rotating shaft compared to directly connecting the second and third rotating shafts. This ensures the vertical movement of the third support frame and its components, thereby enabling the second and third conveyor wheels to contact the bottom of the box containing the food without contacting the box, thereby enhancing the user experience of the product.

[0019] 4. By connecting the two sixth synchronous wheels to the two first rotating shafts respectively, and simultaneously sleeved the fourth synchronous belt on the outside of the two fourth synchronous wheels, it is achieved that when one first rotating shaft rotates, the first rotating shaft drives the other first rotating shaft to rotate through the two sixth synchronous wheels and the fourth synchronous belt, thereby achieving synchronous rotation of the two first rotating shafts; by installing the first motor frame on the outside of the first support frame, installing the first motor body on the first motor frame, and connecting the first motor body to the first rotating shaft, so that the first motor frame supports the first motor body, thereby achieving the first motor body being able to drive the first rotating shaft to rotate, thereby providing power for rotating the first rotating shaft.

[0020] 5. When the metal detector detects no metal in the food, the first lead screw is rotated, causing it to move the first baffle upward, thereby increasing the distance between the first baffle and the third support frame. This prevents the first baffle from blocking the boxed food, thereby ensuring that the first conveyor wheel can move the boxed food onto the second conveyor mechanism. When the metal detector detects metal in the food, the first lead screw is rotated in the opposite direction, causing it to move the first baffle downward, thereby decreasing the distance between the first baffle and the third support frame. This allows the first baffle to block the boxed food, ensuring that the boxed food remains on the second and third conveyor wheels. This allows the second and third conveyor wheels to cooperate and drive the boxed food onto the third conveyor mechanism.

[0021] 6. By installing the first cylinder in the first support frame, the first output shaft of the first cylinder passes through the bottom of the second support frame, and the first output shaft of the first cylinder is connected to the third support frame, so that the first support frame supports the first cylinder. At the same time, it can also be achieved that the first output shaft of the first cylinder does not interfere with the second support frame, so that the first cylinder drives the first output shaft to drive the third support frame to move up and down, thereby adjusting the height of the third support frame; by installing the first guide seat in the first support frame, the first linear bearing is installed in the first guide seat, and the first linear bearing is sleeved on the outside of the first guide rod, so that the first guide seat guides the first guide rod through the first linear bearing, thereby avoiding the first guide rod and the third support frame from offsetting when moving up and down, thereby improving the stability of the third support frame moving up and down.

[0022] 7. By connecting one end of the two connecting rods to the second movable plate, connecting the second baffle to the other ends of the two connecting rods, and positioning the second baffle above the third conveying mechanism, when the second movable plate moves, the second movable plate drives the second baffle to move via the two connecting rods, thereby enabling the second baffle to block and position the boxed food conveyed by the third conveying mechanism, thereby ensuring that the boxed food stays in the mounting rack, thereby facilitating subsequent inspection of the food.

[0023] 8. By connecting the guide plate to the second output shaft of the second cylinder, connecting one end of the guide plate to the guide plate, and extending the other end of the guide plate away from the center line of the third conveying mechanism, the second cylinder can drive the guide plate and the guide plate to move, so as to adjust the distance between the two guide plates and the two guide plates, so that the two guide plates and the two guide plates cooperate to guide the packaged food, so that the center line of the box body coincides with the center line of the third conveying mechanism, thereby realizing the positioning of the packaged food for subsequent inspection of the food.

[0024] 9. By setting a third threaded hole in the first movable plate and passing the third screw through the third threaded hole, the third screw is threadedly connected to the first movable plate, thereby rotating the third screw to drive the first movable plate to move, and then adjusting the position of the first detector to enable the first detector to detect different positions of the packaged food.

[0025] 10. By providing a fourth threaded hole in the lifting plate and passing a fourth lead screw through the fourth threaded hole, a threaded connection is achieved between the fourth lead screw and the lifting plate. Thus, when the fifth motor body drives the fourth lead screw to rotate, the fourth lead screw can drive the lifting plate to move up and down, thereby adjusting the height of the lifting plate and the third detector, thereby enabling the third detector to detect different positions of the packaged food.

[0026] 11. By setting a fifth threaded hole in the adjustment plate and passing the fifth screw through the fifth threaded hole, the fifth screw is threadedly connected to the adjustment plate, so that the fifth screw can be rotated to drive the adjustment plate and the third detector to move, thereby adjusting the position of the third detector, and further enabling the third detector to detect different positions of the packaged food. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 A top view of a food detection device of the present invention; Figure 2 for Figure 1 AA cross-sectional view; Figure 3 for Figure 1 A partial enlarged view of point B; Figure 4 for Figure 1 A partial enlarged view of point C; Figure 5 for Figure 1 Cross-sectional view at DD; Figure 6 for Figure 5 A local enlarged view of point E; Figure 7 for Figure 5 A partial enlarged view of point F; Figure 8 for Figure 5 A local enlarged view of point G; in, Figures 1 to 8 The corresponding relationship between the reference numerals and component names is as follows: 10 first conveying mechanism, 11 metal detector, 12 second conveying mechanism, 13 reversing conveying mechanism, 131 first supporting frame, 132 second supporting frame, 133 first rotating shaft, 134 first conveying wheel, 135 third supporting frame, 136 hanging frame, 137 second rotating shaft, 138 second conveying wheel, 139 supporting plate, 140 third rotating shaft, 141 third conveying wheel, 142 second lifting mechanism, 1421 first cylinder, 1422 first guide rod, 1423 first guide seat, 1424 first linear bearing, 1425 first limit plate, 143 fourth rotating shaft, 144 first synchronous wheel, 145 second synchronous wheel, 146 first synchronous belt, 147 third synchronous wheel, 148 fourth synchronous wheel, 149 second synchronous belt, 150 fifth synchronous wheel, 151 third synchronous belt, 152 notch, 153 sixth synchronous wheel, 154 fourth synchronous belt, 155 first motor frame, 156 first motor body, 1 57 second motor frame, 158 second motor body, 159 first fixed frame, 160 first lead screw, 161 first lifting block, 162 second lifting block, 163 first baffle, 17 third transmission mechanism, 18 fixed plate, 19 mounting frame, 20 moving mechanism, 201 yield groove, 202 first mounting plate, 203 third lead screw, 204 third optical bar, 205 fourth motor body, 21 first moving plate, 22 first detector, 23 adjustment mechanism, 2 4 Adjusting plate, 25 Second detector, 26 First lifting mechanism, 261 Fifth motor body, 262 Fourth lead screw, 27 Lifting plate, 28 Third detector, 29 Second fixing frame, 30 Third motor body, 31 Second lead screw, 32 Second movable plate, 33 Second optical bar, 34 Connecting rod, 35 Second baffle, 36 Limit seat, 37 Second cylinder, 38 Guide plate, 39 Guide plate, 40 Second guide rod, 41 Second guide seat, 42 Second limit plate. DETAILED DESCRIPTION

[0028] The following is a combination of specific implementation cases and attached Figures 1 to 8 The present invention is further described below, but the present invention is not limited to these embodiments.

[0029] A food testing device, such as Figure 1 and Figure 2As shown, the food detection device includes: a first conveying mechanism 10, a second conveying mechanism 12, a reversing conveying mechanism 13, a third conveying mechanism 17, a fixed plate 18, a mounting frame 19, a moving mechanism 20, a first moving plate 21, a first detector 22, an adjusting mechanism 23, an adjusting plate 24, a second detector 25, a first lifting mechanism 26, a lifting plate 27 and a third detector 28; a metal detector 11 is installed on the first conveying mechanism 10; the second conveying mechanism 12 is located on one side of the first conveying mechanism 10, and there is a gap between the second conveying mechanism 12 and the first conveying mechanism 10; the reversing conveying mechanism 13 is located between the first conveying mechanism 10 and the second conveying mechanism 12; the third conveying mechanism 17 is located on one side of the reversing conveying mechanism 13, and the third conveying mechanism 17 is perpendicular to the first conveying mechanism 10; two fixed plates 18 are installed on the third conveying mechanism on both sides of the mechanism 17; both sides of the mounting frame 19 are respectively mounted on two fixed plates 18, and the mounting frame 19 is arranged around the outside of the third conveying mechanism 17; the moving mechanism 20 is mounted on the top of the mounting frame 19; the first moving plate 21 is connected to the moving mechanism 20; the first detector 22 is located in the mounting frame 19, and the first detector 22 is connected to the first moving plate 21; the adjusting mechanism 23 is mounted on an inner wall of the mounting frame 19, and the adjusting mechanism 23 is perpendicular to the moving mechanism 20; the adjusting plate 24 is located in the mounting frame 19, and the adjusting plate 24 is connected to the adjusting mechanism 23; the second detector 25 is mounted on the adjusting plate 24; the first lifting mechanism 26 is mounted on the other inner wall of the mounting frame 19; the lifting plate 27 is located in the mounting frame 19, and the lifting plate 27 is connected to the first lifting mechanism 26; the third detector 28 is mounted on the lifting plate 27.

[0030] By installing the metal detector 11 on the first conveyor mechanism 10, the metal detector 11 can detect the boxed food when the first conveyor mechanism 10 conveys it, thereby detecting whether the food contains metal. By positioning the second conveyor mechanism 12 on one side of the first conveyor mechanism 10 and positioning the reversing conveyor mechanism 13 between the first conveyor mechanism 10 and the second conveyor mechanism 12, the reversing conveyor mechanism 13 can transfer the boxed food to the second conveyor mechanism 12 when the boxed food is removed from the first conveyor mechanism 10, thereby enabling the second conveyor mechanism 12 to transfer the food to a predetermined location. By positioning the third conveyor mechanism 17 on one side of the reversing conveyor mechanism 13 and positioning the third conveyor mechanism 17 perpendicular to the first conveyor mechanism 10, the reversing conveyor mechanism 13 can change the conveying direction of the boxed food when the metal detector 11 detects that the boxed food contains metal, thereby transferring the boxed food to the third conveyor mechanism 17.By installing two fixed plates 18 on both sides of the third conveying mechanism 17, and installing both sides of the mounting frame 19 on the two fixed plates 18 respectively, the third conveying mechanism 17 supports the mounting frame 19 through the two fixed plates 18, thereby improving the stability of the mounting frame 19, so that the mounting frame 19 is arranged around the outside of the third conveying mechanism 17; by installing the moving mechanism 20 on the top of the mounting frame 19, connecting the first moving plate 21 with the moving mechanism 20, and connecting the first detector 22 with the first moving plate 21, so that the first moving plate 21 supports the first detector 22, so that the moving mechanism 20 can drive the first moving plate 21 and the first detector 22 to move, and then the first detector 22 can detect different positions of the packaged food to delineate the position range of the food containing metal; by installing the adjusting mechanism 23 on an inner wall of the mounting frame 19, connecting the adjusting plate 24 with the adjusting mechanism 23, and installing the second detector 25 on the adjusting plate The plate 24 is mounted on the mounting frame 19 to enable the mounting frame 19 to support the adjustment mechanism 23 and enable the mounting frame 19 to support the second detector 25, so that the adjustment mechanism 23 can drive the adjustment plate 24 and the second detector 25 to move, thereby enabling the second detector 25 to detect different positions of the packaged food, thereby narrowing the location range of the food containing metal; by installing the first lifting mechanism 26 on the other inner wall of the mounting frame 19, connecting the lifting plate 27 with the first lifting mechanism 26, and installing the third detector 28 on the lifting plate 27, so that the mounting frame 19 supports the first lifting mechanism 26 and enables the lifting plate 27 to support the third detector 28, thereby enabling the first lifting mechanism 26 to drive the lifting plate 27 and the third detector 28 to move up and down, thereby adjusting the height of the third detector 28, thereby enabling the third detector 28 to detect different positions of the packaged food, further narrowing the location range of the food containing metal, thereby ensuring the specific location of the food containing metal.

[0031] When the product is used in practice, the boxed food is first placed on the first conveyor mechanism 10; then, the first conveyor mechanism 10 is started, so that the first conveyor mechanism 10 drives the food to move, so that the food passes through the metal detector 11, so that the metal detector 11 detects the boxed food, and then determines whether the boxed food contains metal; when the boxed food does not contain metal, the reversing conveyor mechanism 13 is started, so that the reversing conveyor mechanism 13 drives the food to move, and the food is conveyed to the second conveyor mechanism 12, so that the second conveyor mechanism 12 conveys the food to a predetermined position; when the boxed food contains metal, the conveying direction of the reversing conveyor mechanism 13 is first adjusted, and then the reversing conveyor mechanism 13 is started, so that the reversing conveyor mechanism 13 drives the food to move, so that the food is conveyed to the third conveyor mechanism 17; then, the third conveyor mechanism 17 is started, so that the third conveyor mechanism 17 drives the food to move, so that the food is moved into the mounting rack 19. At this time The third conveying mechanism 17 is stopped, so that the food stays in the mounting rack 19; then, the moving mechanism 20 is started, so that the moving mechanism 20 drives the first detector 22 to move along the X-axis direction (a direction perpendicular to the conveying direction of the third conveying mechanism 17), so that the first detector 22 detects different positions of the boxed food to determine the location range of the metal food; then, the adjusting mechanism 23 is started, so that the adjusting mechanism 23 drives the second detector 25 to move along the Y-axis direction (a direction parallel to the conveying direction of the third conveying mechanism 17), so that the second detector 25 detects different positions of the boxed food to narrow the location range of the metal food; then, the first lifting mechanism 26 is started, so that the first lifting mechanism 26 drives the third detector 28 to move along the Z-axis direction (height direction), so that the third detector 28 detects different positions of the boxed food to further narrow the location range of the metal food, and then find the specific location of the metal food.

[0032] With the above structure, by having the moving mechanism 20 drive the first detector 22 along the X-axis, the adjusting mechanism 23 drive the second detector 25 along the Y-axis, and the first lifting mechanism 26 drive the third detector 28 along the Z-axis, the first detector 22, the second detector 25, and the third detector 28 can successively inspect the packed food in different directions, thereby locating the specific location of the food containing metal, without requiring staff to inspect each food item individually. This allows the food containing metal to be found and replaced in a short period of time, thereby improving product efficiency. By locating the reversing conveyor mechanism 13 between the first conveyor mechanism 10, the second conveyor mechanism 12, and the third conveyor mechanism 17, the conveying direction of the reversing conveyor mechanism 13 can be adjusted to transport the food containing metal and the food containing no metal to the second conveyor mechanism 12 and the third conveyor mechanism 17, respectively, thereby achieving food classification for subsequent processing and further improving the product user experience.

[0033] Specifically, the first conveyor belt mechanism includes a first conveyor frame, a first conveyor roller and a first conveyor belt; the two first conveyor rollers are respectively rotatably connected to the two ends of the first conveyor frame, and the first conveyor belt is mounted on the outside of the two first conveyor rollers to achieve the two first conveyor rollers cooperating to support the first conveyor belt, so that when the driving device drives one first conveyor roller to rotate, the two first conveyor rollers cooperate to drive the first conveyor belt to move, and then drive the boxed food placed on the first conveyor belt to move.

[0034] Specifically, the second conveyor belt mechanism includes a second conveyor frame, a second conveyor roller and a second conveyor belt; the two second conveyor rollers are rotatably connected to the two ends of the second conveyor frame respectively, and the second conveyor belt is mounted on the outside of the two second conveyor rollers to achieve the two second conveyor rollers cooperating to support the second conveyor belt, so that when the driving device drives one second conveyor roller to rotate, the two second conveyor rollers cooperate to drive the second conveyor belt to move, and then drive the boxed food placed on the second conveyor belt to move.

[0035] Specifically, the third conveyor belt mechanism includes a third conveyor frame, a third conveyor roller and a third conveyor belt; the two third conveyor rollers are rotatably connected to the two ends of the third conveyor frame respectively, and the third conveyor belt is mounted on the outside of the two third conveyor rollers to achieve the two third conveyor rollers cooperating to support the third conveyor belt, so that when the driving device drives a third conveyor roller to rotate, the two third conveyor rollers cooperate to drive the third conveyor belt to move, and then drive the boxed food placed on the third conveyor belt to move.

[0036] In an embodiment of the present invention, Figures 3 to 8As shown, the reversing conveying mechanism 13 includes: a first support frame 131, a second support frame 132, a first rotating shaft 133, a first conveying wheel 134, a third support frame 135, a hanger 136, a second rotating shaft 137, a second conveying wheel 138, a support plate 139, a third rotating shaft 140, a third conveying wheel 141 and a second lifting mechanism 142; at least two first support frames 131 are installed between the first conveying mechanism 10 and the second conveying mechanism 12; the second support frame 132 is U-shaped, and the second The support frame 132 is installed on at least two first support frames 131 at the same time; the two first rotating shafts 133 are located in the second support frame 132, and the two first rotating shafts 133 are rotatably connected to the second support frame 132 at the same time; at least two first transmission wheels 134 are sleeved on the outside of the first rotating shaft 133; the third support frame 135 is U-shaped, the third support frame 135 is placed in the second support frame 132, and the second support frame 132 and the third support frame 135 are staggered; the hanger 136 is L-shaped, and the hanger The frame 136 is installed on an inner wall of the third support frame 135; the two second rotating shafts 137 are located in the hanger 136, and the two ends of the two second rotating shafts 137 are rotatably connected to the hanger 136 and the third support frame 135 respectively, and the second rotating shafts 137 are perpendicular to the first rotating shaft 133; the two second transmission wheels 138 are respectively mounted on the outer sides of the two second rotating shafts 137; the two support plates 139 are installed at the bottom of the third support frame 135, and the two support plates 139 are located between the two first rotating shafts 133; the two ends of the two third rotating shafts 140 are respectively rotatably connected to the two support plates 139, and the third rotating shafts 140 are perpendicular to the first rotating shaft 133; the two third transmission wheels 141 are respectively mounted on the outer sides of the two third rotating shafts 140; at least two second lifting mechanisms 142 are respectively installed in at least two first support frames 131, and at least two second lifting mechanisms 142 are simultaneously connected to the third support frame 135; wherein the second transmission wheel 138 and the third transmission wheel 141 are at the same height.

[0037] By installing at least two first support frames 131 between the first conveying mechanism 10 and the second conveying mechanism 12, and simultaneously installing the U-shaped second support frame 132 on the at least two first support frames 131, it is possible to achieve that the at least two first support frames 131 cooperate to support the second support frame 132, thereby improving the stability of the second support frame 132; by simultaneously connecting the two first rotating shafts 133 to the second support frame 132 for rotation, and sleeved on the outside of the first rotating shaft 133, it is possible to achieve that the second support frame 132 supports the two first rotating shafts 133, thereby achieving the rotation of the first rotating shaft 133 to drive the multiple first conveying wheels 134 to rotate, and then achieving that when the boxed food is placed on the first conveying wheel 134, the multiple first conveying wheels 134 cooperate to drive the boxed food to move to the second conveying mechanism 12. By placing the U-shaped third support frame 135 in the second support frame 132, and making the second support frame 132 and the third support frame 135 staggered, it is possible to achieve that the second support frame 132 can support the third support frame 135, so that the third support frame 135 can move up and down in the second support frame 132; by installing the L-shaped hanger 136 on an inner wall of the third support frame 135 by welding, the two ends of the two second rotating shafts 137 are rotatably connected to the hanger 136 and the third support frame 135 respectively, so that the hanger 136 and the third support frame 135 cooperate to support the two second rotating shafts 137, so that the two second rotating shafts 137 can rotate in the hanger 136; by respectively fitting the two second transmission wheels 138 on the two The second rotating shaft 137 is arranged on the outside of the second rotating shaft 137, and the second rotating shaft 137 is made perpendicular to the first rotating shaft 133, so that the second rotating shaft 137 can rotate the second conveying wheel 138; by installing the two supporting plates 139 on the bottom of the third supporting frame 135 by welding, the two ends of the two third rotating shafts 140 are rotatably connected to the two supporting plates 139, and the two third conveying wheels 141 are respectively mounted on the outside of the two third rotating shafts 140, so that the two supporting plates 139 cooperate to support the two third rotating shafts 140, so that the two third rotating shafts 140 can respectively drive the two third conveying wheels 141 to rotate, and then the two third conveying wheels 141 and the two second conveying wheels 138 cooperate to drive the packaged food to move to the third conveying mechanism 17.By installing at least two second lifting mechanisms 142 in at least two first support frames 131 respectively, and making at least two second lifting mechanisms 142 connected to the third support frame 135 at the same time, the first support frame 131 supports the second lifting mechanism 142, so that the at least two second lifting mechanisms 142 cooperate to drive the third support frame 135 to move up and down, so that the second conveying wheel 138 and the third conveying wheel 141 are higher than the first conveying wheel 134, and then the second conveying wheel 138 and the third conveying wheel 141 are in contact with the bottom of the box for holding food, so that the second conveying wheel 138 and the third conveying wheel 141 can cooperate to drive the box to move.

[0038] With the above structure, when the metal detector 11 does not detect metal in the food, the boxed food removed from the first conveying mechanism 10 will be moved to multiple first conveying wheels 134; then, the first rotating shaft 133 is rotated, so that the first rotating shaft 133 drives the first conveying wheel 134 to rotate, so that the multiple first conveying wheels 134 cooperate to drive the boxed food to move to the second conveying mechanism 12, so that the second conveying mechanism 12 can drive the boxed food to a predetermined position; at this time, the highest point of the second conveying wheel 138 and the third conveying wheel 141 is lower than the highest point of the first conveying wheel 134, so the second conveying wheel 138 and the third conveying wheel 141 will not contact the box containing the food, thereby avoiding the second conveying wheel 138 and the third conveying wheel 141 from interfering with the box, and further avoiding damage to the box.

[0039] When the metal detector 11 detects that the food contains metal, the two second lifting mechanisms 142 are started, so that the multiple second lifting mechanisms 142 drive the third support frame 135 to move upward, so that the highest points of the second conveying wheel 138 and the third conveying wheel 141 are higher than the highest point of the first conveying wheel 134; then, the first conveying mechanism 10 drives the boxed food to move, so that the boxed food is moved to the second conveying wheel 138 and the third conveying wheel 141; then, the second rotating shaft 137 and the third rotating shaft 140 are rotated at the same time, so that the second rotating shaft 137 and the third rotating shaft 140 respectively drive the second conveying wheel 138 and the third conveying wheel 141 to rotate, so that the second conveying wheel 138 and the third conveying wheel 141 cooperate to drive the boxed food to move to the third conveying mechanism 17, thereby realizing the classification of the food for subsequent processing of the food.

[0040] In an embodiment of the present invention, Figures 5 to 7As shown, the reversing transmission mechanism 13 also includes: a fourth rotating shaft 143, a first synchronous wheel 144, a second synchronous wheel 145, a first synchronous belt 146, a third synchronous wheel 147, a fourth synchronous wheel 148, a second synchronous belt 149, a fifth synchronous wheel 150, a third synchronous belt 151 and a notch 152; the two fourth rotating shafts 143 are located in the third support frame 135, and the two ends of the two fourth rotating shafts 143 are rotatably connected to the third support frame 135; the two first synchronous wheels 144 are respectively mounted on the outside of the two fourth rotating shafts 143; the two second synchronous wheels 145 are respectively connected to the two second rotating shafts 137; the first synchronous belt 146 is simultaneously mounted on the outside of the first synchronous wheel 144 and the second synchronous wheel 145; the two third synchronous wheels 147 are respectively mounted on the outside of the two fourth rotating shafts 143; the two fourth synchronous wheels 148 are respectively connected to the two third rotating shafts 140; the second synchronous belt 149 is simultaneously mounted on the outside of the third synchronous wheel 147 and the fourth synchronous wheel 148; the two fifth synchronous wheels 150 are respectively connected to the two fourth rotating shafts 143, and the two fifth synchronous wheels 150 are located on the outside of the third support frame 135; the third synchronous belt 151 is simultaneously mounted on the outside of the two fifth synchronous wheels 150; the notch 152 is set on a side wall of the third support frame 135 close to the first transmission mechanism 10, and the notch 152 is located below one of the first rotating shafts 133; wherein, the fourth rotating shaft 143 is located below the second rotating shaft 137 and the third rotating shaft 140.

[0041] By locating the two fourth rotating shafts 143 in the third support frame 135 and rotatably connecting the two ends of the two fourth rotating shafts 143 to the third support frame 135, the third support frame 135 supports the two fourth rotating shafts 143, thereby enabling the two fourth rotating shafts 143 to rotate in the third support frame 135; by respectively sleeveing ​​the two first synchronous wheels 144 on the outside of the two fourth rotating shafts 143, connecting the two second synchronous wheels 145 to the two second rotating shafts 137, and sleeved the first synchronous belt 146 on the outside of the first synchronous wheel 144 and the second synchronous wheel 145 at the same time, when the fourth rotating shaft 143 rotates, the fourth rotating shaft 143 drives the second rotating shaft 137 to rotate through the first synchronous wheel 144, the second synchronous wheel 145 and the first synchronous belt 146, thereby providing power for rotating the second rotating shaft 137. By respectively fitting the two third synchronous gears 147 onto the outer sides of the two fourth rotating shafts 143, and respectively connecting the two fourth synchronous gears 148 to the two third rotating shafts 140, and simultaneously fitting the second synchronous belt 149 onto the outer sides of the third synchronous gears 147 and the fourth synchronous gears 148, when the fourth rotating shaft 143 rotates, the fourth rotating shaft 143 drives the third rotating shaft 140 to rotate through the third synchronous gears 147, the fourth synchronous gears 148 and the second synchronous belt 149, thereby providing power for rotating the third rotating shaft 140; by respectively connecting the two fifth synchronous gears 150 to the two fourth rotating shafts 143, and simultaneously fitting the third synchronous belt 151 onto the outer sides of the two fifth synchronous gears 150, when one fourth rotating shaft 143 rotates, the fourth rotating shaft 143 drives the other fourth rotating shaft 143 to rotate through the two fifth synchronous gears 150 and the third synchronous belt 151, thereby achieving synchronous rotation of the two fourth rotating shafts 143. By setting the notch 152 on a side wall of the third support frame 135 close to the first conveying mechanism 10 and making the notch 152 located below a first rotating shaft 133, when the third support frame 135 moves upward, interference between the third support frame 135 and the first rotating shaft 133 is avoided, thereby improving product quality.

[0042] By adopting the above structure, the fourth rotating shaft 143 drives the second rotating shaft 137 and the third rotating shaft 140 to rotate at the same time, so as to realize the synchronous rotation of the second rotating shaft 137 and the third rotating shaft 140, thereby realizing the synchronous rotation of the second conveying wheel 138 and the third conveying wheel 141, thereby improving the effect of the second conveying wheel 138 and the third conveying wheel 141 in driving the movement of the packaged food. Moreover, the fourth rotating shaft 143 drives the second rotating shaft 137 to rotate through the first synchronous wheel 144, the second synchronous wheel 145 and the first synchronous belt 146, and the fourth rotating shaft 143 drives the third rotating shaft 140 to rotate through the third synchronous wheel 147, the fourth synchronous wheel 148 and the second synchronous belt 149, and the fourth rotating shaft 143 is located below the second rotating shaft 137 and the third rotating shaft 140. Under the premise of ensuring the synchronous rotation of the second rotating shaft 137 and the third rotating shaft 140, compared with directly connecting the second rotating shaft 137 and the third rotating shaft 140 together, the fourth rotating shaft 143 can avoid interference with the first rotating shaft 133, thereby ensuring that the third support frame 135 and the components within the third support frame 135 can move up and down, thereby achieving that the second conveying wheel 138 and the third conveying wheel 141 can be in contact with the bottom of the box for containing food, and the second conveying wheel 138 and the third conveying wheel 141 can be prevented from contacting the box for containing food, thereby improving the user experience of the product.

[0043] In an embodiment of the present invention, Figure 3 and Figure 6 As shown, the reversing transmission mechanism 13 also includes: a sixth synchronous wheel 153, a fourth synchronous belt 154, a first motor frame 155, a first motor body 156, a second motor frame 157 and a second motor body 158; the two sixth synchronous wheels 153 are respectively connected to the two first rotating shafts 133, and the two sixth synchronous wheels 153 are located on the outside of the first support frame 131; the fourth synchronous belt 154 is simultaneously sleeved on the outside of the two fourth synchronous wheels 148; the first motor frame 155 is installed on the outside of the first support frame 131; the first motor body 156 is installed on the first motor frame 155, and the first motor body 156 is connected to the first rotating shaft 133; the second motor frame 157 is installed on the outside of the second support frame 132; the second motor body 158 is installed on the second motor frame 157, and the second motor body 158 is connected to the fourth rotating shaft 143.

[0044] By connecting the two sixth synchronous wheels 153 to the two first rotating shafts 133 respectively, and simultaneously sleeved the fourth synchronous belt 154 on the outside of the two fourth synchronous wheels 148, it is realized that when one first rotating shaft 133 rotates, the first rotating shaft 133 drives the other first rotating shaft 133 to rotate through the two sixth synchronous wheels 153 and the fourth synchronous belt 154, thereby realizing synchronous rotation of the two first rotating shafts 133; by installing the first motor frame 155 on the outside of the first support frame 131, installing the first motor body 156 on the first motor frame 155, and connecting the first motor body 156 to the first rotating shaft 133, The first motor frame 155 is used to support the first motor body 156, so that the first motor body 156 can drive the first rotating shaft 133 to rotate, so as to provide power for rotating the first rotating shaft 133; by installing the second motor frame 157 on the outside of the second support frame 132, the second motor body 158 is installed on the second motor frame 157, and the second motor body 158 is connected to the fourth rotating shaft 143, so that the second motor frame 157 supports the second motor body 158, so that the second motor body 158 can drive the fourth rotating shaft 143 to rotate, so as to provide power for rotating the fourth rotating shaft 143.

[0045] In an embodiment of the present invention, Figure 1 and Figure 5 As shown, the reversing transmission mechanism 13 further includes: a first fixed frame 159, a first lead screw 160, a first optical bar, a first lifting block 161, a second lifting block 162 and a first baffle 163; the two first fixed frames 159 are respectively mounted on both sides of the top of the second transmission mechanism 12; a first external thread is provided on the outer wall of the first lead screw 160, one end of the first lead screw 160 is rotatably connected to one side of the top of the second transmission mechanism 12, and the other end of the first lead screw 160 is rotatably connected to a first fixed frame 159; one end of the first optical bar is rotatably connected to the second transmission mechanism 12 The other side of the top is connected, and the other end of the first optical bar is connected to another first fixing frame 159; a first threaded hole is provided in the first lifting block 161, and a first internal thread is provided in the first threaded hole, and the first threaded hole of the first lifting block 161 is sleeved on the outside of the first lead screw 160; the second lifting block 162 is sleeved on the outside of the first optical bar; the first baffle 163 is connected to the first lifting block 161 and the second lifting block 162 at the same time, and the first baffle 163 is located above the third support frame 135; wherein, the first external thread is adapted to the first internal thread.

[0046] By respectively installing the two first fixing frames 159 on both sides of the top of the second conveying mechanism 12, the two ends of the first lead screw 160 are rotatably connected to one side of the top of the second conveying mechanism 12 and a first fixing frame 159, and the two ends of the first optical bar are respectively connected to the other side of the top of the second conveying mechanism 12 and another first fixing frame 159, so that the second conveying mechanism 12 and the two first fixing frames 159 cooperate to support the first lead screw 160 and the first optical bar; by fitting the first threaded hole of the first lifting block 161 on the outside of the first lead screw 160, and fitting the second lifting block 162 on the outside of the first optical bar, so that the first lead screw 160 and the first lifting block 1 61 threaded connection, so that the first lead screw 160 can drive the first lifting block 161 to move up and down, and at the same time, the second lifting block 162 can also move up and down along the first optical bar; by connecting the first baffle 163 to the first lifting block 161 and the second lifting block 162 at the same time, and making the first baffle 163 above the third support frame 135, so that the first lifting block 161 and the second lifting block 162 cooperate to support the first baffle 163, so that when the first lead screw 160 drives the first lifting block 161 to move up and down, the first lifting block 161 and the second lifting block 162 cooperate to drive the first baffle 163 to move up and down, so as to adjust the height of the first baffle 163.

[0047] With the above structure, when the metal detector 11 does not detect metal in the food, the first lead screw 160 is rotated, causing it to move the first baffle 163 upward, thereby increasing the distance between the first baffle 163 and the third support frame 135. This prevents the first baffle 163 from blocking the boxed food, thereby ensuring that the first conveyor wheel 134 can move the boxed food onto the second conveyor mechanism 12. When the metal detector 11 detects metal in the food, the first lead screw 160 is rotated in the opposite direction, causing it to move the first baffle 163 downward, thereby decreasing the distance between the first baffle 163 and the third support frame 135. This allows the first baffle 163 to block the boxed food, ensuring that the boxed food stays on the second conveyor wheel 138 and the third conveyor wheel 141. The second conveyor wheel 138 and the third conveyor wheel 141 then cooperate to drive the boxed food onto the third conveyor mechanism 17.

[0048] In an embodiment of the present invention, Figure 5 and Figure 8As shown, the second lifting mechanism 142 includes: a first cylinder 1421, a first guide rod 1422, a first guide seat 1423, a first linear bearing 1424 and a first limit plate 1425; the first cylinder 1421 is provided with a first output shaft, the first cylinder 1421 is installed in the first support frame 131, the first output shaft of the first cylinder 1421 passes through the bottom of the second support frame 132, and the first output shaft of the first cylinder 1421 is connected to the third support frame 135; one end of the two first guide rods 1422 is connected to the third support frame 135, and the other end of the two first guide rods 1422 is connected to the third support frame 135. Passing through the second support frame 132 and the third support frame 135 for the second time; the two first guide seats 1423 are installed in the first support frame 131, and the two first guide seats 1423 are respectively wrapped around the outside of the two first guide rods 1422; the two first linear bearings 1424 are respectively installed in the two first guide seats 1423, and the two first linear bearings 1424 are respectively sleeved on the outside of the two first guide rods 1422; the two first limit plates 1425 are respectively connected to the other ends of the two first guide rods 1422, and the two first limit plates 1425 are respectively located below the two first guide seats 1423.

[0049] By installing the first cylinder 1421 in the first support frame 131, the first output shaft of the first cylinder 1421 passes through the bottom of the second support frame 132, and the first output shaft of the first cylinder 1421 is connected to the third support frame 135, so that the first support frame 131 supports the first cylinder 1421. At the same time, it is also possible to achieve that the first output shaft of the first cylinder 1421 does not interfere with the second support frame 132, so that the first cylinder 1421 drives the first output shaft to drive the third support frame 135 to move up and down, thereby adjusting the height of the third support frame 135; by connecting one end of the two first guide rods 1422 to the third support frame 135, and connecting the two first guide rods 1422 to the third support frame 135, The other end of the guide rod 1422 passes through the second support frame 132 and the third support frame 135 in sequence, so that the two first guide rods 1422 and the third support frame 135 can move up and down synchronously; by installing the first guide seat 1423 in the first support frame 131, installing the first linear bearing 1424 in the first guide seat 1423, and sleeved on the outside of the first guide rod 1422, so that the first guide seat 1423 can guide the first guide rod 1422 through the first linear bearing 1424, thereby avoiding the first guide rod 1422 and the third support frame 135 from offsetting when moving up and down, so as to improve the stability of the third support frame 135 moving up and down. By connecting the first limit plate 1425 to the other end of the first guide rod 1422 and positioning the first limit plate 1425 below the first guide seat 1423, the first limit plate 1425 and the first guide rod 1422 can be moved up and down synchronously, so that when the other end of the first guide rod 1422 moves to the first guide seat 1423, the first limit plate 1425 is engaged with the first guide seat 1423, thereby preventing the first guide rod 1422 from moving out of the first guide seat 1423, thereby improving the user experience of the product.

[0050] In an embodiment of the present invention, Figure 1 and Figure 2As shown, the food detection device also includes: a second fixed frame 29, a third motor body 30, a second lead screw 31, a second movable plate 32, a second optical bar 33, a connecting rod 34 and a second baffle 35; the second fixed frame 29 is mounted on the end of the third conveying mechanism 17 away from the reversing conveying mechanism 13; the third motor body 30 is mounted on the second fixed frame 29; a second external thread is provided on the outer wall of the second lead screw 31, one end of the second lead screw 31 is rotatably connected to the third conveying mechanism 17, and the other end of the second lead screw 31 is connected to the third motor body 30; a second threaded hole is provided in the second movable plate 32 , a second internal thread is provided in the second threaded hole, the second movable plate 32 is located in the second fixed frame 29, and the second lead screw 31 passes through the second threaded hole of the second movable plate 32; one end of the second optical bar 33 is connected to the second fixed frame 29, the other end of the second optical bar 33 is connected to the third transmission mechanism 17, and the second optical bar 33 passes through the second movable plate 32; one end of the two connecting rods 34 is connected to the second movable plate 32; the second baffle 35 is connected to the other end of the two connecting rods 34, and the second baffle 35 is located above the third transmission mechanism 17; wherein, the second external thread is adapted to the second internal thread.

[0051] By installing the second fixed frame 29 on the end of the third conveying mechanism 17 away from the reversing conveying mechanism 13, and installing the third motor body 30 on the second fixed frame 29, the third conveying mechanism 17 supports the third motor body 30 through the second fixed frame 29, thereby improving the stability of the third motor body 30; by rotatably connecting one end of the second lead screw 31 to the third conveying mechanism 17, and connecting the other end of the second lead screw 31 to the third motor body 30, the third conveying mechanism 17 and the third motor body 30 cooperate to support the second lead screw 31, thereby enabling the third motor body 30 to drive the second lead screw 31 to rotate in the second fixed frame 29. By locating the second movable plate 32 in the second fixed frame 29 and passing the second lead screw 31 through the second threaded hole of the second movable plate 32, the second lead screw 31 is threadedly connected to the second movable plate 32, thereby rotating the second lead screw 31 to drive the second movable plate 32 to move in the second fixed frame 29; by connecting one end of the second optical bar 33 to the second fixed frame 29, connecting the other end of the second optical bar 33 to the third transmission mechanism 17, and passing the second optical bar 33 through the second movable plate 32, the third transmission mechanism 17 and the second fixed frame 29 cooperate to support the second optical bar 33, thereby enabling the second movable plate 32 to move along the second optical bar 33 to improve the stability of the movement of the second movable plate 32. By connecting one end of the two connecting rods 34 to the second movable plate 32, connecting the second baffle 35 to the other end of the two connecting rods 34, and positioning the second baffle 35 above the third conveying mechanism 17, it is possible to achieve that when the second movable plate 32 moves, the second movable plate 32 drives the second baffle 35 to move through the two connecting rods 34, so that the second baffle 35 can block and position the boxed food transported by the third conveying mechanism 17, to ensure that the boxed food stays in the mounting rack 19, thereby facilitating subsequent inspection of the food.

[0052] In an embodiment of the present invention, Figure 4As shown, the food detection device also includes: a limit seat 36, a second cylinder 37, a guide plate 38, a guide plate 39, a second guide rod 40, a second guide seat 41, a second linear bearing and a second limit plate 42; the two limit seats 36 are respectively installed on both sides of the top of the third conveying mechanism 17, and the two limit seats 36 are arranged opposite to each other; the second cylinder 37 is provided with a second output shaft, and the two second cylinders 37 are respectively installed on the two limit seats 36; the two guide plates 38 are respectively connected to the second output shafts of the two second cylinders 37, and the two guide plates 38 are located between the two limit seats 36; one end of the two guide plates 39 is respectively connected to the two guide plates 38 The two guide plates 39 are connected, and the other ends of the two guide rods 40 extend away from the center line direction of the third conveying mechanism 17; one end of the two second guide rods 40 is respectively connected to the two guide plates 38, and the other ends of the two second guide rods 40 pass through the two limit seats 36 respectively; the two second guide seats 41 are respectively installed on the two limit seats 36, and the two second guide seats 41 are respectively arranged around the outside of the two second guide rods 40; the two second linear bearings are respectively installed in the two second guide seats 41, and the two second linear bearings are respectively mounted on the outside of the two second guide rods 40; the two second limit plates 42 are respectively connected to the other ends of the two second guide rods 40.

[0053] By respectively installing the two limit seats 36 on both sides of the top of the third conveying mechanism 17, and respectively installing the two second cylinders 37 on the two limit seats 36, the limit seats 36 support the second cylinder 37, thereby improving the stability of the second cylinder 37; by connecting the guide plate 38 to the second output shaft of the second cylinder 37, connecting one end of the guide plate 39 to the guide plate 38, and extending the other end of the guide plate 39 away from the center line direction of the third conveying mechanism 17, the second cylinder 37 can drive the guide plate 38 and the guide plate 39 to move, so as to adjust the distance between the two guide plates 38 and the two guide plates 39, so that the two guide plates 39 and the two guide plates 38 cooperate to guide the boxed food, so that the center line of the box body coincides with the center line of the third conveying mechanism 17, thereby realizing the positioning of the boxed food for subsequent inspection of the food.

[0054] In an embodiment of the present invention, Figure 1 and Figure 2As shown, the moving mechanism 20 includes: a clearance groove 201, a first mounting plate 202, a third threaded hole, a third lead screw 203, a third optical rod 204 and a fourth motor body 205; the clearance groove 201 is set at the top of the mounting frame 19, and at least part of the first moving plate 21 is located in the clearance groove 201; two first mounting plates 202 are installed on the top of the mounting frame 19, and the two first mounting plates 202 are located on both sides of the clearance groove 201; a third internal thread is set in the third threaded hole, and the third threaded hole is set on the first moving plate 21; a third external thread is provided on the outer wall of the third lead screw 203, and both ends of the third lead screw 203 are rotatably connected to the two first mounting plates 202 respectively, and the third lead screw 203 passes through the third threaded hole; both ends of the third optical bar 204 are connected to the two first mounting plates 202 respectively, and the third optical bar 204 passes through the first movable plate 21; the fourth motor body 205 is installed on the top of the mounting frame 19, and the fourth motor body 205 is connected to the third lead screw 203; wherein, the third external thread is adapted to the third internal thread.

[0055] By setting the clearance groove 201 at the top of the mounting frame 19 and making at least part of the first movable plate 21 located in the clearance groove 201, the first movable plate 21 can be moved in the clearance groove 201, thereby avoiding interference between the first movable plate 21 and the mounting frame 19; by installing the two first mounting plates 202 on the top of the mounting frame 19, making the two first mounting plates 202 located on both sides of the clearance groove 201, and the two ends of the third lead screw 203 are respectively rotatably connected to the two first mounting plates 202, so as to achieve the two first mounting plates 2 02 cooperates with each other to support the third lead screw 203, so that the third lead screw 203 can rotate between the two first mounting plates 202; by setting the third threaded hole in the first movable plate 21, and passing the third lead screw 203 through the third threaded hole, the third lead screw 203 is threadedly connected to the first movable plate 21, so as to rotate the third lead screw 203, so that the third lead screw 203 drives the first movable plate 21 to move, and then adjusts the position of the first detector 22, so that the first detector can detect different positions of the packaged food. By distributing the two ends of the third optical bar 204 on the two first mounting plates 202 and connecting them, the third optical bar 204 passes through the first movable plate 21, the fourth motor body 205 is installed on the top of the mounting frame 19, and the fourth motor body 205 is connected to the third lead screw 203, so that the two first mounting plates 202 cooperate to support the third optical bar 204, so that the first movable plate 21 can move along the third optical bar 204 to improve the stability of the movement of the first movable plate 21. At the same time, the fourth motor body 205 can also drive the third lead screw 203 to rotate, thereby providing power for rotating the third lead screw 203.

[0056] In an embodiment of the present invention, Figure 2As shown, the first lifting mechanism 26 includes: a fourth threaded hole, a fifth motor body 261, a fourth lead screw 262 and a fourth optical bar; a fourth internal thread is provided in the fourth threaded hole, and the fourth threaded hole is provided in the lifting plate 27; the fifth motor body 261 is mounted on the top of the mounting frame 19; a fourth external thread is provided on the outer wall of the fourth lead screw 262, one end of the fourth lead screw 262 is connected to the fifth motor body 261, and the other end of the fourth lead screw 262 is rotatably connected to the top of the third transmission mechanism 17, and the fourth lead screw 262 passes through the fourth threaded hole; one end of the fourth optical bar is connected to the top of the mounting frame 19, the other end of the fourth optical bar is connected to the top of the third transmission mechanism 17, and the fourth optical bar passes through the lifting plate 27; wherein, the fourth internal thread is adapted to the fourth external thread.

[0057] By installing the fifth motor body 261 on the top of the mounting bracket 19, connecting one end of the fourth lead screw 262 to the fifth motor body 261, and rotatably connecting the other end of the fourth lead screw 262 to the top of the third transmission mechanism 17, the mounting bracket 19 can support the fifth motor body 261, thereby achieving the mounting bracket 19 and the third transmission mechanism 17 to cooperate with each other to support the fifth motor body 261, and then achieving the fifth motor body 261 to drive the fourth lead screw 262 to rotate; by setting the fourth threaded hole in the lifting plate 27 and passing the fourth lead screw 262 through the fourth threaded hole, the fourth lead screw 262 can be threadedly connected to the lifting plate 27, thereby achieving the fifth motor body 261. When the fifth motor body 261 drives the fourth lead screw 262 to rotate, the fourth lead screw 262 can drive the lifting plate 27 to move up and down to adjust the height of the lifting plate 27 and the third detector 28, so that the third detector 28 can detect different positions of the packaged food; by connecting one end of the fourth optical bar to the top of the mounting frame 19, connecting the other end of the fourth optical bar to the top of the third conveying mechanism 17, and passing the fourth optical bar through the lifting plate 27, the mounting frame 19 and the third conveying mechanism 17 cooperate to support the fourth optical bar, so that the lifting plate 27 can move up and down along the fourth optical bar to improve the stability of the movement of the lifting plate 27.

[0058] In an embodiment of the present invention, Figure 2 As shown, the adjustment mechanism 23 includes: a second mounting plate, a fifth threaded hole, a fifth lead screw and a fifth optical bar; the two second mounting plates are mounted on the inner wall of the mounting frame 19; a fifth internal thread is provided in the fifth threaded hole, and the fifth threaded hole is provided in the adjustment plate 24; a fifth external thread is provided on the outer wall of the fifth lead screw, and the two ends of the fifth lead screw are respectively rotatably connected to the two second mounting plates, and the fifth lead screw passes through the fifth threaded hole; the two ends of the fifth optical bar are respectively connected to the two second mounting plates, and the fifth optical bar passes through the adjustment plate 24.

[0059] By installing the two second mounting plates on the inner wall of the mounting frame 19, and rotatably connecting the two ends of the fifth lead screw with the two second mounting plates respectively, the two second mounting plates cooperate to support the fifth lead screw, so that the fifth lead screw can rotate between the two second mounting plates; by setting the fifth threaded hole in the adjusting plate 24, and passing the fifth lead screw through the fifth threaded hole, so that the fifth lead screw is threadedly connected to the adjusting plate 24, so that the fifth lead screw is rotated, so that the fifth lead screw drives the adjusting plate 24 and the third detector 28 to move, so as to adjust the position of the third detector 28, and thus the third detector 28 can detect different positions of the packaged food; by connecting the two ends of the fifth optical bar with the two second mounting plates respectively, and passing the fifth optical bar through the adjusting plate 24, so that the two second mounting plates cooperate to support the fifth optical bar, so that the adjusting plate 24 can move along the fifth optical bar, so as to improve the stability of the movement of the adjusting plate 24.

[0060] In the description of the present invention, the term "plurality" refers to two or more than two. Unless otherwise expressly defined, the orientations or positional relationships indicated by the terms "upper" and "lower" are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention. The terms "connect," "install," and "fix" should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0061] In the description of the present invention, the terms "one embodiment," "some embodiments," "specific embodiments," etc., mean that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In the present invention, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0062] The foregoing description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention are intended to be within the scope of protection of the present invention.

Claims

1. A food detection device, characterized in that: The food detection device comprises: a first conveying mechanism, wherein a metal detector is installed on the first conveying mechanism; a second conveying mechanism, the second conveying mechanism being located on one side of the first conveying mechanism, and a distance being spaced between the second conveying mechanism and the first conveying mechanism; a reversing conveying mechanism, the reversing conveying mechanism being located between the first conveying mechanism and the second conveying mechanism; a third conveying mechanism, the third conveying mechanism being located on one side of the reversing conveying mechanism and being perpendicular to the first conveying mechanism; Fixed plates, two of which are mounted on both sides of the third conveying mechanism; A mounting frame, wherein two sides of the mounting frame are respectively mounted on the two fixing plates, and the mounting frame is arranged around the outside of the third conveying mechanism; A moving mechanism, the moving mechanism being mounted on the top of the mounting frame; a first movable plate connected to the movable mechanism; a first detector, the first detector being located in the mounting frame and connected to the first movable plate; an adjusting mechanism, the adjusting mechanism being mounted on an inner wall of the mounting frame and being perpendicular to the moving mechanism; an adjustment plate, the adjustment plate being located in the mounting frame and connected to the adjustment mechanism; a second detector, the second detector being mounted on the adjustment plate; a first lifting mechanism, the first lifting mechanism being mounted on another inner wall of the mounting frame; a lifting plate, the lifting plate being located in the mounting frame and connected to the first lifting mechanism; A third detector is installed on the lifting plate.

2. A food detection device according to claim 1, characterized in that: The reversing transmission mechanism comprises: a first support frame, at least two of which are installed between the first conveying mechanism and the second conveying mechanism; a second support frame, the second support frame being U-shaped and being mounted on at least two of the first support frames at the same time; A first rotating shaft, wherein two of the first rotating shafts are located in the second supporting frame, and the two first rotating shafts are simultaneously rotatably connected to the second supporting frame; First transmission wheels, at least two of which are mounted on the outer side of the first rotating shaft; a third support frame, wherein the third support frame is U-shaped and is placed inside the second support frame, and the second support frame and the third support frame are staggered; a hanger, the hanger being L-shaped and mounted on an inner wall of the third support frame; a second rotating shaft, wherein two second rotating shafts are located in the hanger, two ends of the two second rotating shafts are rotatably connected to the hanger and the third support frame respectively, and the second rotating shafts are perpendicular to the first rotating shaft; a second transmission wheel, wherein two second transmission wheels are respectively mounted on the outer sides of the two second rotating shafts; Support plates, two of which are mounted on the bottom of the third support frame, and are located between the two first rotating shafts; a third rotating shaft, wherein both ends of the two third rotating shafts are rotatably connected to the two support plates respectively, and the third rotating shafts are perpendicular to the first rotating shaft; a third transmission wheel, wherein two third transmission wheels are respectively mounted on the outer sides of the two third rotating shafts; a second lifting mechanism, wherein at least two of the second lifting mechanisms are respectively installed in at least two of the first support frames, and at least two of the second lifting mechanisms are simultaneously connected to the third support frame; Wherein, the second transmission wheel and the third transmission wheel are at the same height.

3. A food detection device according to claim 2, characterized in that: The reversing transmission mechanism also includes: a fourth rotating shaft, wherein two fourth rotating shafts are located in the third supporting frame, and both ends of the two fourth rotating shafts are rotatably connected to the third supporting frame; a first synchronous wheel, wherein the two first synchronous wheels are respectively mounted on the outer sides of the two fourth rotating shafts; a second synchronous wheel, wherein two second synchronous wheels are respectively connected to the two second rotating shafts; A first synchronous belt, wherein the first synchronous belt is simultaneously sleeved on the outer sides of the first synchronous wheel and the second synchronous wheel; A third synchronous wheel, wherein two third synchronous wheels are respectively mounted on the outer sides of the two fourth rotating shafts; a fourth synchronous wheel, wherein two fourth synchronous wheels are respectively connected to the two third rotating shafts; a second synchronous belt, the second synchronous belt being simultaneously sleeved on the outside of the third synchronous wheel and the fourth synchronous wheel; a fifth synchronous wheel, wherein two of the fifth synchronous wheels are respectively connected to the two fourth rotating shafts, and the two fifth synchronous wheels are located outside the third supporting frame; a third synchronous belt, said third synchronous belt being simultaneously sleeved on the outer sides of the two fifth synchronous wheels; a notch, the notch being provided on a side wall of the third support frame close to the first transmission mechanism, and the notch being located below one of the first rotating shafts; Wherein, the fourth rotating shaft is located below the second rotating shaft and the third rotating shaft.

4. A food detection device according to claim 3, characterized in that: The reversing transmission mechanism also includes: Sixth synchronous wheels, two of which are connected to the two first rotating shafts respectively, and are located outside the first supporting frame; a fourth synchronous belt, said fourth synchronous belt being simultaneously sleeved on the outer sides of the two fourth synchronous wheels; a first motor frame, the first motor frame being mounted on an outer side of the first support frame; a first motor body, the first motor body being mounted on the first motor frame and connected to the first rotating shaft; a second motor frame, the second motor frame being mounted on an outer side of the second support frame; The second motor body is mounted on the second motor frame, and the second motor body is connected to the fourth rotating shaft.

5. A food detection device according to claim 4, characterized in that: The reversing transmission mechanism also includes: a first fixing frame, wherein two first fixing frames are respectively installed on both sides of the top of the second conveying mechanism; a first lead screw having a first external thread provided on an outer wall thereof, one end of the first lead screw being rotatably connected to one side of the top of the second transmission mechanism, and the other end of the first lead screw being rotatably connected to one of the first fixing frames; a first optical bar, one end of which is connected to the other side of the top of the second transmission mechanism, and the other end of which is connected to another first fixing frame; a first lifting block, wherein a first threaded hole is provided in the first lifting block, a first internal thread is provided in the first threaded hole, and the first threaded hole of the first lifting block is sleeved on the outer side of the first lead screw; a second lifting block, wherein the second lifting block is sleeved on an outer side of the first optical bar; a first baffle, the first baffle being connected to both the first lifting block and the second lifting block, and the first baffle being located above the third support frame; Wherein, the first external thread is adapted to the first internal thread.

6. A food detection device according to claim 5, characterized in that: The second lifting mechanism includes: a first cylinder, wherein the first cylinder is provided with a first output shaft, the first cylinder is mounted in the first support frame, the first output shaft of the first cylinder passes through the bottom of the second support frame, and the first output shaft of the first cylinder is connected to the third support frame; First guide rods, one end of two of the first guide rods is connected to the third support frame, and the other ends of the two first guide rods pass through the second support frame and the third support frame in sequence; First guide seats, wherein two first guide seats are installed in the first support frame, and the two first guide seats are respectively arranged around the outsides of the two first guide rods; First linear bearings, wherein the two first linear bearings are respectively installed in the two first guide seats, and the two first linear bearings are respectively sleeved on the outsides of the two first guide rods; The first limiting plates are connected to the other ends of the two first guide rods respectively, and the two first limiting plates are located below the two first guide seats respectively.

7. A food detection device according to claim 1, characterized in that: The food detection device also includes: a second fixing frame, the second fixing frame being mounted on an end of the third conveying mechanism away from the reversing conveying mechanism; a third motor body, the third motor body being mounted on the second fixing bracket; a second lead screw, wherein a second external thread is provided on an outer wall of the second lead screw, one end of the second lead screw is rotatably connected to the third transmission mechanism, and the other end of the second lead screw is connected to the third motor body; a second movable plate, wherein a second threaded hole is provided in the second movable plate, a second internal thread is provided in the second threaded hole, the second movable plate is located in the second fixed frame, and the second lead screw passes through the second threaded hole of the second movable plate; a second optical bar, one end of the second optical bar being connected to the second fixed frame, the other end of the second optical bar being connected to the third transmission mechanism, and the second optical bar passing through the second movable plate; connecting rods, one end of each of the two connecting rods being connected to the second movable plate; a second baffle, the second baffle being connected to the other ends of the two connecting rods and being located above the third conveying mechanism; Wherein, the second external thread is adapted to the second internal thread.

8. A food detection device according to claim 7, characterized in that: The food detection device also includes: Limiting seats, wherein the two limiting seats are respectively installed on both sides of the top of the third conveying mechanism, and the two limiting seats are arranged opposite to each other; A second cylinder, wherein the second cylinder is provided with a second output shaft, and two second cylinders are respectively mounted on the two limiting seats; guide plates, wherein the two guide plates are respectively connected to the second output shafts of the two second cylinders, and the two guide plates are located between the two limit seats; guide plates, one end of each of the two guide plates being connected to the two guide plates respectively, and the other ends of the two guide plates extending away from the center line direction of the third conveying mechanism; Second guide rods, one end of each of the two second guide rods being connected to the two guide plates, and the other end of each of the two second guide rods passing through the two limit seats; A second guide seat, wherein the two second guide seats are respectively mounted on the two limit seats, and the two second guide seats are respectively arranged around the outside of the two second guide rods; A second linear bearing, wherein the two second linear bearings are respectively installed in the two second guide seats, and the two second linear bearings are respectively sleeved on the outside of the two second guide rods; The second limiting plates are connected to the other ends of the two second guide rods respectively.

9. A food detection device according to claim 1, characterized in that: The moving mechanism comprises: a clearance groove, the clearance groove being arranged at the top of the mounting frame, and at least a portion of the first movable plate being located in the clearance groove; First mounting plates, two of which are mounted on the top of the mounting frame and are located on both sides of the clearance groove; a third threaded hole, wherein a third internal thread is provided in the third threaded hole, and the third threaded hole is provided in the first movable plate; a third screw having a third external thread provided on an outer wall thereof, two ends of the third screw being rotatably connected to the two first mounting plates respectively, and the third screw passing through the third threaded hole; a third optical bar, wherein both ends of the third optical bar are respectively connected to the two first mounting plates, and the third optical bar passes through the first movable plate; a fourth motor body, the fourth motor body being mounted on the top of the mounting frame and connected to the third lead screw; Wherein, the third external thread is adapted to the third internal thread.

10. A food detection device according to claim 9, characterized in that: The first lifting mechanism includes: a fourth threaded hole, wherein a fourth internal thread is provided in the fourth threaded hole, and the fourth threaded hole is provided in the lifting plate; a fifth motor body, the fifth motor body being mounted on the top of the mounting frame; a fourth lead screw, wherein a fourth external thread is provided on an outer wall of the fourth lead screw, one end of the fourth lead screw is connected to the fifth motor body, the other end of the fourth lead screw is rotatably connected to the top of the third transmission mechanism, and the fourth lead screw passes through the fourth threaded hole; a fourth optical bar, one end of the fourth optical bar being connected to the top of the mounting frame, the other end of the fourth optical bar being connected to the top of the third conveying mechanism, and the fourth optical bar passing through the lifting plate; Wherein, the fourth internal thread is adapted to the fourth external thread.

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