Food metal detector

Abstract

The invention relates to the technical field of food detection, in particular to a food metal detector which comprises a food conveyor and a metal detection mechanism arranged on the food conveyor, a tray conveyor is arranged beside the food conveyor, a supporting frame is fixedly connected between the tray conveyor and the top end of the food conveyor, and a sliding groove is formed in the top end of the supporting frame. By means of the arrangement of the structure, two rows of bread in the middle of four rows of bread on the tray can be pushed to the middle, then the bread on the outer side is pushed to the two sides, the moving space of the upper shovel plate and the lower shovel plate is reserved, and the upper shovel plate and the lower shovel plate can be lowered to the tray; and then the upper shovel plate and the lower shovel plate are driven to move towards the two sides to shovel up all the four rows of bread, then the bread is placed on the food conveyor through the moving mechanism to be subjected to metal detection, and therefore automatic taking of the bread in the tray is achieved, workers do not need to shovel the bread beside, and the convenience performance of the equipment is improved.

Description

Technical Field

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

[0002] In modern food production, metal detection is an important part of ensuring food safety. For baked goods such as bread, metal impurities may come from wear and tear of production equipment, dropped tools, or contaminated raw materials. If these metal impurities are not discovered and removed in time, they will not only affect the taste of the product, but may also pose a serious threat to consumer health. Therefore, baked goods must undergo strict screening with metal detectors before packaging.

[0003] In the prior art, a metal detection device for food is disclosed with publication number CN116281018A. When the conveyor belt of the detection device transports food with a lot of oil stains, the oil stains adhere to the surface. After moving to the bottom of the conveyor belt, the spray device will spray cleaning liquid onto the belt surface, and then the brushing device will brush the belt surface. Finally, the flushing device will flush away the oil stains and cleaning liquid on the belt surface, completing the cleaning of the conveyor belt surface. When the belt surface returns to the upper side of the conveyor belt, there is very little oil stain and it is not easy to adhere to debris, thereby improving the detection accuracy of the metal detection equipment.

[0004] Although the above-mentioned equipment can clean the conveyor line of the food metal detector, since gaps are usually left during the manufacturing process of baked goods to prevent them from sticking or adhering to the side walls of the tray, it is difficult for the machine to automatically pick up the materials, affecting the automation level of the production line. Therefore, workers need to use a shovel to shovel the bread on the tray one by one onto the conveyor line, and then transfer it to the bottom of the metal detector for inspection. This process is not only inefficient and increases labor costs, but also cumbersome to operate and easily causes food contamination. Summary of the Invention

[0005] The purpose of the present invention is to solve the shortcomings of the background technology and to propose a food metal detector.

[0006] The lifting mechanism is a lifting mechanism that the lifting mechanism is a lifting mechanism, and the lifting mechanism is a lifting mechanism in a lifting mechanism, and the lifting mechanism is a lifting mechanism of the lifting mechanism.

[0007] In the above technical solution, further, a pair of upper electric telescopic cylinders are fixedly connected to the top of the upper T-block, and the output ends of the upper electric telescopic cylinders pass through the bottom end of the upper T-block and are fixedly connected to the top of the moving frame;

[0008] When scooping out the four rows of bread on the tray, the upper electric telescopic cylinder is used to move the push plate to both sides of the two middle rows of bread, and the two-way telescopic cylinder is controlled to drive the push plate to move toward the middle, pushing the two middle rows of bread toward the middle. Then, the two-way telescopic cylinder is controlled to move in the opposite direction to drive the push plate to move away from the side, and the two outer rows of bread are moved to both sides, leaving space for the shoveling mechanism to descend. The upper electric telescopic cylinder can be controlled to start and move the shoveling mechanism to the tray to scoop up the bread, thereby realizing automatic shoveling.

[0009] In the above technical solution, further, the side walls of the support frame are fixedly connected with side blocks, and the bottom ends of the side blocks are fixedly connected with lifting plates for limiting the position of the pallet.

[0010] In the above technical solution, further, the moving mechanism includes a moving motor, the moving motor is fixedly connected to the side wall of the support frame, the inner side of the slide groove is rotatably connected to a threaded rod, the threaded rod passes through a thread and is connected to the inner wall of the upper T-block, and the output end of the moving motor passes through the inner side of the slide groove and is fixedly connected to the side wall of the threaded rod.

[0011] The cam is secured to the upper and lower ends of the L-shaped handlebars and the lower ends of the L-shaped handlebars are secured to the upper and lower ends of the L-shaped handlebars.

[0012] In the above technical solution, further, the upper shovel plate and the lower shovel plate are both inclined away from each other, a number of return springs are fixedly connected between the top of the push plate and the top of the T-shaped cylinder, the side wall of the upper shovel plate relative to the position next to the lower L-shaped rod and the side wall of the lower shovel plate relative to the position next to the upper L-shaped rod are provided with telescopic grooves, the top of the T-shaped cylinder is fixedly connected to a number of bottom plates, and return springs are fixedly connected between the several bottom plates and the corresponding connecting rods.

[0013] In the above technical solution, further, both sides of the outer wall of the T-shaped cylinder are fixedly connected with connecting blocks, and the side walls of the connecting blocks are fixedly connected with limiting plates.

[0014] In the above technical solution, further, one of the side walls of the lower T-shaped block is fixedly connected to a receiving sensor, a U-shaped block is provided below the receiving sensor, both top ends of the U-shaped block are fixedly connected to an upper position transmitter, the middle part of the top end of the U-shaped block is fixedly connected to a lower position transmitter, a pair of L-shaped grooves are provided on the side wall of the movable frame, a U-shaped plate is fixedly connected to the inner side of the U-shaped block, the U-shaped plate is inserted into the inner side of one of the L-shaped grooves, and the receiving sensor is electrically connected to the two-way telescopic cylinder through the controller.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. The present invention, through the arrangement of structures such as a moving mechanism, a two-way telescopic cylinder and a shoveling mechanism, can first push the middle two rows of bread on the four rows of the tray toward the middle, and then push the outer bread to both sides, leaving space for the upper shoveling plate and the lower shoveling plate to move. The upper shoveling plate and the lower shoveling plate can then be lowered onto the tray, and then the upper shoveling plate and the lower shoveling plate are driven to move to both sides to scoop up all four rows of bread. The bread is then placed on a food conveyor for metal detection through the moving mechanism, thereby realizing automatic retrieval of bread from the tray without the need for workers to shovel the bread on the side, thereby improving the convenience of the equipment and reducing the possibility of food contamination.

[0017] 2. The present invention, through the arrangement of structures such as a receiving sensor, an upper position transmitter, a lower position transmitter and a U-shaped plate, can adjust the pushing position of the bidirectional telescopic cylinder-driven push plate when only three rows of bread can be baked on a tray for larger-sized bread, thereby being flexibly adapted to different situations, meeting user needs and improving the flexibility of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the front three-dimensional structure of the metal detector of the present invention;

[0019] Figure 2 This is a schematic diagram of the rear-view stereoscopic structure of the metal detector of the present invention;

[0020] Figure 3 This is a schematic diagram of the overall appearance of the fixed frame, movable frame and movable mechanism of the present invention;

[0021] Figure 4 The appended Figure 3 A schematic diagram of the partially enlarged structure at center A;

[0022] Figure 5 This is a schematic diagram of the full-cut side three-dimensional structure of the movable frame of the present invention;

[0023] Figure 6 This is a schematic diagram of the three-dimensional structure of the fixed frame and the T-shaped tube separated according to the present invention;

[0024] Figure 7 This is a schematic diagram of the three-dimensional structure of the T-shaped cylinder, upper shovel plate, lower shovel plate, push plate and lower electric telescopic cylinder separated according to the present invention;

[0025] Figure 8 This is a schematic diagram of the overall appearance structure of the T-shaped cylinder, upper shovel plate and lower shovel plate of the present invention;

[0026] Figure 9 It is a schematic diagram of the three-dimensional structure of the T-type cylinder of the present invention in full cross-section from the side.

[0027] Figure: 1. Food conveyor; 2. Metal detector; 3. Pallet conveyor; 4. Support frame; 5. Slide; 6. Upper T-block; 7. Fixed frame; 8. Mobile frame; 9. Lower T-block; 10. Two-way telescopic cylinder; 11. Top plate; 12. T-tube; 13. Push plate; 14. Upper electric telescopic cylinder; 15. Side block; 16. Lifting plate; 17. Mobile motor; 18. Threaded rod; 19. Lower electric telescopic cylinder; 20. Connecting plate; 21. Extrusion plate; 2 2. V-shaped groove; 23. Upper shovel plate; 24. Lower shovel plate; 25. Upper L-shaped rod; 26. Lower L-shaped rod; 27. Through groove; 28. Movable groove; 29. ​​Connecting rod; 30. Extrusion rod; 31. Reset spring; 32. Telescopic groove; 33. Bottom plate; 34. Return spring; 35. Connecting block; 36. Limit plate; 37. Receiving sensor; 38. U-shaped block; 39. Upper position transmitter; 40. Lower position transmitter; 41. L-shaped groove; 42. U-shaped plate. DETAILED DESCRIPTION

[0028] In order to more clearly understand the above-mentioned objects, features and advantages of the present invention, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0029] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0030] In actual use, it was found that since gaps are usually left during the manufacturing process of baked goods to prevent them from sticking or adhering to the side walls of the tray, it is difficult for the machine to automatically pick up the materials, affecting the automation level of the production line. Therefore, workers are required to use a shovel to shovel the bread on the tray one by one onto the conveyor line, and then transfer it to the bottom of the metal detection instrument for inspection. This process is not only inefficient and increases labor costs, but also cumbersome to operate and easily causes food contamination. In order to solve the above problems, the following structure is specially invented.

[0031] like Figures 1-9The food metal detector shown includes a food conveyor 1 and a metal detection mechanism 2 arranged on the food conveyor 1. The food metal detection mechanism 2 usually includes one or more coils (transmitting coils and receiving coils). These coils form a balanced electromagnetic field. When food passes through the detection area, if it contains metal foreign matter, the metal will interfere with the electromagnetic field, causing the magnetic field to change. This magnetic field change will be detected by the receiving coil and converted into an electrical signal. After further processing, it is determined whether there is metal foreign matter. A tray conveyor 3 is provided next to the food conveyor 1. The food conveyor 1 and the tray conveyor 3 are mainly composed of structures such as conveyor rollers, conveyor belts and motors. They are mature technologies in the existing technology and will not be described in detail here. The tray conveyor 3 and the food conveyor 1 are top A support frame 4 is fixedly connected between the ends, and a slide groove 5 is opened at the top of the support frame 4. An upper T-block 6 is slidably connected to the inside of the slide groove 5. A moving mechanism for driving the upper T-block 6 to move back and forth is provided on the support frame 4. A pair of fixed frames 7 are provided below the upper T-block 6, and a moving frame 8 is provided above the fixed frame 7. A pair of lower T-blocks 9 are slidably connected to the inside of the moving frame 8. The lower T-block 9 is fixedly connected to the top of the fixed frame 7, and a two-way telescopic cylinder 10 is fixedly connected to the top of the moving frame 8. The top of the lower T-block 9 is fixedly connected to a top plate 11, and the output ends of the two-way telescopic cylinder 10 are fixedly connected to the side walls of the top plate 11. The bottom ends of the fixed frames 7 are fixedly connected to T-tubes 12, and push plates 13 are slidably connected to the insides of the T-tubes 12. The T-tubes 12 are also provided with a shoveling mechanism for shoveling out bread on both sides;

[0032] A pair of upper electric telescopic cylinders 14 are fixedly connected to the top of the upper T-block 6, and the output ends of the upper electric telescopic cylinders 14 pass through the bottom end of the upper T-block 6 and are fixedly connected to the top of the moving frame 8;

[0033] When shoveling out the four rows of bread on the tray, the upper electric telescopic cylinder 14 is used to move the push plate 13 to both sides of the two middle rows of bread, and the two-way telescopic cylinder 10 is controlled to drive the push plate 13 to move toward the middle, pushing the two middle rows of bread toward the middle. Then, the two-way telescopic cylinder 10 is controlled to move in the opposite direction to drive the push plate 13 to move away from the side, moving the two outer rows of bread to both sides, leaving space for the shoveling mechanism to descend. Then, the upper electric telescopic cylinder 14 can be controlled to start and move the shoveling mechanism to the tray to scoop up the bread, thereby realizing automatic shoveling.

[0034] The side wall of the support frame 4 is fixedly connected with a side block 15, and the bottom end of the side block 15 is fixedly connected with a lifting plate 16 for limiting the position of the pallet. The lifting plate 16 is mainly composed of a hydraulic telescopic cylinder and a movable plate. It is a mature technology in the prior art and will not be described in detail here. It can block the position of the pallet on the pallet conveyor 3, thereby ensuring that the pallet is in the correct shoveling position and ensuring the normal operation of the equipment;

[0035] When metal detection is performed on the baked bread, the pallet is first placed horizontally on the pallet conveyor 3, and then the pallet is conveyed to the bottom of the support frame 4 under the conveyance of the pallet conveyor 3, and the position of the pallet on the pallet conveyor 3 is limited under the action of the lifting plate 16. Then, the moving mechanism is controlled to move the upper T-block 6 to the top of the pallet, and the upper electric telescopic cylinder 14 can be controlled to start and drive the moving frame 8 and the fixed frame 7 to move downward, and at the same time drive the T-cylinder 12 and the push plate 13 to move downward, so that the bottom end of the push plate 13 moves to the bottom end of the pallet, and the push plate 13 is located on both sides of the two middle rows of the four rows of bread. Then, the two-way telescopic cylinder 10 can be controlled to drive the two push plates 13 to move toward the middle, pushing the two middle rows of bread toward the middle, and then the two-way telescopic cylinder 10 can be controlled to move in the opposite direction to drive the push plate 13 to move away from the side, and move the two outer rows of bread to both sides, leaving space for the shoveling mechanism to descend.

[0036] In summary, through the design of the above structure, the middle two rows of the four rows of bread on the tray can be pushed toward the middle first, and then the outer rows of bread can be pushed to both sides, leaving space for the shoveling mechanism to move.

[0037] Based on the above embodiment, it was found during use that although there was space for the shoveling mechanism to scoop up the bread, the space left was relatively small, which posed a problem for the shoveling mechanism to scoop up the bread in the narrow space. In order to solve the above problem, the above structure was further improved.

[0038] The moving mechanism includes a moving motor 17, which is fixedly connected to the side wall of the support frame 4. A threaded rod 18 is rotatably connected to the inner side of the chute 5. The threaded rod 18 passes through the inner side wall of the upper T-block 6 and is threadedly connected. The output end of the moving motor 17 passes through the inner side of the chute 5 and is fixedly connected to the side wall of the threaded rod 18.

[0039] The shoveling mechanism includes a lower electric telescopic cylinder 19, which is fixedly connected to the top of the fixed frame 7. The output end of the lower electric telescopic cylinder 19 is fixedly connected to a connecting plate 20. The side wall of the connecting plate 20 is fixedly connected to an extrusion plate 21. A V-shaped groove 22 is provided on the top of the extrusion plate 21. An upper shovel plate 23 and a lower shovel plate 24 are respectively provided on both sides of the bottom end of the outer wall of the T-shaped cylinder 12. Both ends of the side wall of the upper shovel plate 23 are fixedly connected to an upper L-shaped rod 25. A pair of lower L-shaped rods 26 are fixedly connected to the middle of the side wall of the lower shovel plate 24, and the side wall of the push plate 13 is relative to the lower L-shaped rod. A through slot 27 is provided next to the upper L-shaped rod 26. The provision of the through slot 27 prevents the lower L-shaped rod 26 from obstructing the normal extension and contraction of the push plate 13. A movable slot 28 is provided at the top of the T-shaped cylinder 12 relative to the upper L-shaped rod 25 and the lower L-shaped rod 26. The provision of the movable slot 28 prevents obstruction of the normal movement of the upper L-shaped rod 25 and the lower L-shaped rod 26. A connecting rod 29 is fixedly connected between the top ends of the upper L-shaped rod 25 and the top ends of the lower L-shaped rod 26. The top ends of the connecting rods 29 are fixedly connected to extrusion rods 30. The extrusion rods 30 are provided inside the V-shaped groove 22.

[0040] The upper shovel plate 23 and the lower shovel plate 24 are both inclined away from each other, which is convenient for scooping bread from the tray. Several return springs 31 are fixedly connected between the top of the push plate 13 and the top of the T-shaped cylinder 12. The side wall of the upper shovel plate 23 relative to the position next to the lower L-shaped rod 26 and the side wall of the lower shovel plate 24 relative to the position next to the upper L-shaped rod 25 are both provided with a telescopic groove 32. The setting of the telescopic groove 32 avoids obstruction of the reset of the upper L-shaped rod 25 and the lower L-shaped rod 26. At the same time, the upper L-shaped rod 25 and the lower L-shaped rod 26 are staggered with the upper shovel plate 23 and the lower shovel plate 24 to increase the telescopic length. Several bottom plates 33 are fixedly connected to the top of the T-shaped cylinder 12, and return springs 34 are fixedly connected between the several bottom plates 33 and the corresponding connecting rods 29. The setting of the return spring 34 makes it easy to quickly pull the connecting rod 29 to reset when the extrusion plate 21 is reset;

[0041] Connecting blocks 35 are fixedly connected to both sides of the outer wall of the T-shaped cylinder 12, and limiting plates 36 are fixedly connected between the side walls of the connecting blocks 35. The arrangement of the connecting blocks 35 and the limiting plates 36 facilitates the upper and lower shovel plates 23 and 24 to push the bread on them when they are reset, so as to prevent the bread from following the upper and lower shovel plates 23 and 24 in their reset and affecting the normal operation of placing the bread on the food conveyor 1.

[0042] After the bread is placed, the upper electric telescopic cylinder 14 can be controlled to continue to start, driving the T-shaped cylinder 12 to descend. At this time, the bottom end of the tray will squeeze the push plate 13, causing the push plate 13 to be compressed into the T-shaped cylinder 12 and compressing the return spring 31. Then the bottom end of the T-shaped cylinder 12 contacts the bottom end of the tray. At the same time, the upper shovel plate 23 and the lower shovel plate 24 move to the bottom end of the tray. The lower electric telescopic cylinder 19 can be controlled to start and drive the connecting plate 20 and the squeezing plate 21 to move. At this time, the V-groove 22 on the squeezing plate 21 pushes The squeezing rod 30 gradually slides toward the middle, and at the same time drives the connecting rod 29, the upper L-shaped rod 25, and the lower L-shaped rod 26 to move toward the middle, and gradually compresses the return spring 34. Since the upper L-shaped rod 25 and the lower L-shaped rod 26 are cross-arranged in the upper shovel plate 23 and the lower shovel plate 24, they drive the upper shovel plate 23 and the lower shovel plate 24 to move toward the sides, so that through the movement of the upper shovel plate 23 and the lower shovel plate 24, all four rows of bread in the middle and on both sides of the tray are shoveled onto the upper shovel plate 23 and the lower shovel plate 24;

[0043] The upper electric telescopic cylinder 14 can be controlled to start and drive the moving frame 8, the lower T-block 9, the fixed frame 7, the T-tube 12, the upper shovel plate 23 and the lower shovel plate 24 to move upward, and at the same time drive the scooped bread to be moved out of the tray, and then the moving motor 17 can be controlled to start and drive the threaded rod 18 to rotate, thereby driving the threaded connection on the upper T-block 6 to move in the slide 5, and drive the upper electric telescopic cylinder 14, the upper shovel plate 23 and the lower shovel plate 24 to move to the side of the food conveyor 1, and then the bread is moved to the top of the food conveyor 1, and the upper electric telescopic cylinder 14 can be controlled to drive the upper shovel plate 23 and the lower shovel plate 24 to move downward and move to the conveyor belt of the food conveyor 1, and the lower electric telescopic cylinder 19 can be controlled to start Reset, repeat the above operation in reverse to release the squeezing of the squeezing rod 30, and then pull the upper shovel plate 23 and the lower shovel plate 24 to reset under the elastic force of the return spring 34. At this time, the bread will be pushed onto the food conveyor 1 under the restriction of the limit plate 36. Finally, under the transportation of the food conveyor 1, the bread will pass through the metal detection mechanism 2 for inspection. Finally, the qualified bread will be transported to the packaging equipment for packaging processing. The bread with metal will be sorted out under the sorting mechanism of the food conveyor 1. At this time, the lifting plate 16 is controlled to rise, and the tray conveyor 3 is controlled to transport the empty tray away, and the tray with bread is conveyed under the support frame 4. This process is repeated to realize automatic picking and placing of bread.

[0044] In summary, through the design of the above structure, the upper shovel plate 23 and the lower shovel plate 24 are lowered onto the tray, and then the upper shovel plate 23 and the lower shovel plate 24 are driven to move to both sides to scoop up all four rows of bread, and then the bread is placed on the food conveyor 1 through the moving mechanism for metal detection, thereby realizing automatic material removal from the tray without the need for workers to shovel the material on the side, improving the convenience of the equipment and reducing the possibility of food contamination.

[0045] Based on the above embodiment, it was found during use that the above structure can only scoop up bread placed in four rows. When faced with larger-sized bread, where only three rows can be placed on the tray, it cannot be used, which is quite limited. In order to solve the above problem, the above structure was further improved.

[0046] A receiving sensor 37 is fixedly connected to the side wall of one of the lower T-shaped blocks 9. A U-shaped block 38 is provided below the receiving sensor 37. An upper position transmitter 39 is fixedly connected to both top ends of the U-shaped block 38. A lower position transmitter 40 is fixedly connected to the middle portion of the top end of the U-shaped block 38. A pair of L-shaped grooves 41 are provided on the side walls of the movable frame 8. A U-shaped plate 42 is fixedly connected to the inner side of the U-shaped block 38. The U-shaped plate 42 is inserted into the inner side of one of the L-shaped grooves 41. The receiving sensor 37 is electrically connected to the bidirectional telescopic cylinder 10 via a controller.

[0047] During the operation of the bidirectional telescopic cylinder 10, the lower T-shaped block 9 is first driven to move toward the center, which in turn drives the receiving sensor 37 to move. Subsequently, when the receiving sensor 37 moves above one of the upper position transmitters 39, the receiving sensor 37 senses a signal and feeds it back to the controller. The controller controls the bidirectional telescopic cylinder 10 to move in the opposite direction based on the received signal. (The receiving sensor 37 is typically a Hall effect sensor. When the receiving sensor 37 approaches the upper position transmitter 39, the magnetic field changes, thereby generating a change in the electrical signal. This sensor can detect the presence, strength, and changes of the magnetic field, which is then used for position detection and motion control.)

[0048] Then, the lower T-shaped block 9 and the push plate 13 are driven to move to both sides, and at the same time, the receiving sensor 37 is driven to move (when the receiving sensor 37 passes the lower position transmitter 40 for the first time, it receives a signal. At this time, it needs to be programmed so that when it receives the signal from the lower position transmitter 40 for the second time, it controls the two-way telescopic cylinder 10 to stop running, so it will not stop running for the first time). Then, the push plate 13 is driven to move to the other side. The receiving sensor 37 receives the signal transmitted by the upper position transmitter 39 on the other side, controls the two-way telescopic cylinder 10 to move in the opposite direction, and moves the receiving sensor 37 to the top of the lower position transmitter 40 and stops running (that is, in the middle of the bread pushing-out gap), thereby realizing the self-controlled operation of the equipment.

[0049] When it is necessary to remove larger-sized bread and only three rows of bread can be baked on the tray (it should be noted that the size of the tray remains unchanged), the U-shaped plate 42 on the U-shaped block 38 can be pulled out of the L-shaped slot 41 and inserted into another L-shaped slot 41, that is, the positions of the upper position transmitter 39 and the lower position transmitter 40 are changed. Therefore, during operation, the two push plates 13 will push the bread in the middle row toward the middle at the same time, and then push the bread on both sides to move to the sides, and the shoveling mechanism can be activated to automatically remove and place the bread (it should be noted that when scooping four rows of small bread, the upper shovel plate 23 and the lower shovel plate 24 will be completely inserted under the bread to scoop up, but when inserting three rows of large bread, due to the larger size of the bread, the two upper shovel plates 23 will move toward the middle and scoop up the bread in the middle at the same time, while the lower shovel plates 24 on both sides will move to the sides and then insert into the bottom two-thirds of the bread to scoop up the bread. Therefore, it should be noted that scooping up the two-thirds can ensure stability during the bread-making process and prevent it from falling).

[0050] To sum up, through the design of the above structure, when it is possible to bake larger-sized bread and only three rows of bread can be baked on the tray, the pushing position of the bidirectional telescopic cylinder 10 to drive the push plate 13 can be adjusted, so that it can be flexibly applied to different situations, meet user needs, and improve the flexibility of the equipment.

[0051] The basic principles, main features and advantages of the present invention are shown and described above.

[0052] Those skilled in the art should understand that the present invention is not limited to the above-mentioned embodiments. The above-mentioned embodiments and the specification only describe the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. These changes and improvements all fall within the scope of the present invention to be protected.

Claims

1. A food metal detector, comprising a food conveyor (1), and a metal detection mechanism (2) arranged on the food conveyor (1), characterized in that: A tray conveyor (3) is provided next to the food conveyor (1), a support frame (4) is fixedly connected between the tray conveyor (3) and the top of the food conveyor (1), a slide groove (5) is provided at the top of the support frame (4), an upper T-shaped block (6) is slidably connected inside the slide groove (5), a moving mechanism for driving the upper T-shaped block (6) to move back and forth is provided on the support frame (4), a pair of fixed frames (7) are provided below the upper T-shaped block (6), a moving frame (8) is provided above the fixed frame (7), and a moving frame (8) is slidably connected inside the moving frame (8). A pair of lower T-shaped blocks (9), wherein the lower T-shaped blocks (9) are fixedly connected to the top of the fixed frame (7), the top of the movable frame (8) is fixedly connected to a two-way telescopic cylinder (10), the top of each lower T-shaped block (9) is fixedly connected to a top plate (11), the output end of each two-way telescopic cylinder (10) is fixedly connected to the side wall of the top plate (11), the bottom of each fixed frame (7) is fixedly connected to a T-shaped cylinder (12), the inner side of each T-shaped cylinder (12) is slidably connected to a push plate (13), and the T-shaped cylinder (12) is also provided with a shoveling mechanism for shoveling out bread on both sides.

2. A food metal detector according to claim 1, characterized in that: A pair of upper electric telescopic cylinders (14) are fixedly connected to the top of the upper T-shaped block (6), and the output ends of the upper electric telescopic cylinders (14) pass through the bottom end of the upper T-shaped block (6) and are fixedly connected to the top end of the moving frame (8); When shoveling out four rows of bread on the tray, the push plate (13) is moved to both sides of the two middle rows of bread by the upper electric telescopic cylinder (14), and the two-way telescopic cylinder (10) is controlled to drive the push plate (13) to move toward the middle, pushing the two middle rows of bread toward the middle. Then, the two-way telescopic cylinder (10) is controlled to move in the opposite direction to drive the push plate (13) to move away from the side, moving the two outer rows of bread to both sides, leaving space for the shoveling mechanism to descend. Then, the upper electric telescopic cylinder (14) can be controlled to start and move the shoveling mechanism to the tray to shovel up the bread, thereby realizing automatic shoveling.

3. A food metal detector according to claim 1, characterized in that: The side wall of the support frame (4) is fixedly connected to a side block (15), and the bottom end of the side block (15) is fixedly connected to a lifting plate (16) for limiting the position of the tray.

4. A food metal detector according to claim 1, characterized in that: The moving mechanism includes a moving motor (17), the moving motor (17) is fixedly connected to the side wall of the support frame (4), the inner side of the slide groove (5) is rotatably connected to a threaded rod (18), the threaded rod (18) is threadedly connected to the inner side wall of the upper T-shaped block (6), and the output end of the moving motor (17) passes through the inner side of the slide groove (5) and is fixedly connected to the side wall of the threaded rod (18).

5. The food metal detector according to claim 1, characterized in that: The shoveling mechanism comprises a lower electric telescopic cylinder (19), the lower electric telescopic cylinder (19) is fixedly connected to the top end of the fixed frame (7), the output end of the lower electric telescopic cylinder (19) is fixedly connected to a connecting plate (20), the side wall of the connecting plate (20) is fixedly connected to an extrusion plate (21), the top of the extrusion plate (21) is penetrated by a V-shaped groove (22), the bottom end of the outer wall of the T-shaped cylinder (12) is respectively provided with an upper shoveling plate (23) and a lower shoveling plate (24), the two ends of the side wall of the upper shoveling plate (23) are fixedly connected to an upper L-shaped rod (25), and the lower shoveling plate ( 24) A pair of lower L-shaped rods (26) are fixedly connected to the middle of the side wall, and a through groove (27) is provided on the side wall of the push plate (13) relative to the position beside the lower L-shaped rod (26). The top end of the T-shaped cylinder (12) is provided with a movable groove (28) relative to the position beside the upper L-shaped rod (25) and the lower L-shaped rod (26). Connecting rods (29) are fixedly connected between the top ends of the upper L-shaped rods (25) and the top ends of the lower L-shaped rods (26). The top ends of the connecting rods (29) are fixedly connected to extrusion rods (30), and the extrusion rods (30) are arranged on the inner side of the V-shaped groove (22).

6. A food metal detector according to claim 5, characterized in that: The upper shovel plate (23) and the lower shovel plate (24) are both inclined at a side away from each other, and a plurality of return springs (31) are fixedly connected between the top of the push plate (13) and the top of the T-shaped cylinder (12). The side wall of the upper shovel plate (23) is provided with a position next to the lower L-shaped rod (26) and the side wall of the lower shovel plate (24) is provided with a telescopic groove (32) next to the upper L-shaped rod (25). The top of the T-shaped cylinder (12) is fixedly connected with a plurality of bottom plates (33), and a return spring (34) is fixedly connected between the plurality of bottom plates (33) and the corresponding connecting rods (29).

7. The food metal detector according to claim 5, characterized in that: Connecting blocks (35) are fixedly connected to both sides of the outer wall of the T-shaped cylinder (12), and limiting plates (36) are fixedly connected between the side walls of the connecting blocks (35).

8. The food metal detector according to claim 1, characterized in that: A receiving sensor (37) is fixedly connected to the side wall of one of the lower T-shaped blocks (9), a U-shaped block (38) is provided below the receiving sensor (37), both top ends of the U-shaped block (38) are fixedly connected to an upper position transmitter (39), and a lower position transmitter (40) is fixedly connected to the middle of the top end of the U-shaped block (38), a pair of L-shaped grooves (41) are provided on the side wall of the movable frame (8), a U-shaped plate (42) is fixedly connected to the inner side of the U-shaped block (38), and the U-shaped plate (42) is plugged into the inner side of one of the L-shaped grooves (41), and the receiving sensor (37) is electrically connected to the two-way telescopic cylinder (10) through a controller.

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