Food metal detector

Abstract

The utility model discloses a food metal detector, including mounting rack, conveyer belt, protection support and detection device, the both sides of mounting rack outer wall are fixedly provided with fixed plate, the inside of fixed plate is rotatingly provided with screw, the upper part of screw outer wall is in threaded connection with threaded cylinder, and the threaded cylinder is in threaded connection with the screw. And the threaded cylinder is fixedly installed at the bottom of the protection support, a double-head motor is fixedly arranged at the bottom of the installation frame, the two output ends of the double-head motor are both connected with rotating shafts, a driving wheel is fixedly arranged at one end of each rotating shaft, and a driven wheel is meshed with one side of each driving wheel. The food metal detector relates to the technical field of metal detectors, the screw rod and the threaded cylinder are arranged between the mounting rack and the protection support, and under the driving of the double-head motor, the lifting control of the protection support is realized, so that the overall trafficability of the food metal detector is improved, and the safety of the food metal detector is improved. Meanwhile, the phenomenon that signals are weak when small food passes through the detector is avoided.

Description

Technical Field

[0001] This utility model relates to the technical field of metal detectors, specifically a food metal detector. Background Technology

[0002] Food metal detectors are primarily used to detect metallic foreign objects mixed into food. They can detect various metallic impurities, including ferrous and non-ferrous metals, as well as broken needles and wires, at different stages of food processing. These metallic foreign objects may originate from screws and nuts, knife fragments, rust, and metal tool fragments on production equipment. A food metal detector mainly consists of a mounting frame, a conveyor belt, a protective bracket, and a detection device. During food detection, the conveyor belt transports the food to the detector's detection area. When the alarm light sounds, it indicates the presence of metallic substances in the food, at which point the food can be sorted and collected. However, because the protective bracket for the detection device is fixed to the mounting frame, when the food is large or small, it may be unable to pass through the detector, or the detection signal may be weak, thus affecting the detection results. Therefore, we provide a food metal detector to solve these problems. Utility Model Content

[0003] To solve the above problems, namely the problems mentioned in the background art, this utility model proposes a food metal detector, including a mounting frame, a conveyor belt, a protective bracket, and a detection device. The conveyor belt is disposed on the top of the mounting frame, the detection device is installed inside the protective bracket, and the protective bracket is disposed above the mounting frame.

[0004] Both sides of the outer wall of the mounting bracket are fixedly provided with fixing plates. A screw is rotatably provided inside the fixing plate. A threaded cylinder is threadedly connected to the upper part of the outer wall of the screw. The threaded cylinder is fixedly installed at the bottom of the protective bracket. A double-headed motor is fixedly provided at the bottom of the mounting bracket. Both output ends of the double-headed motor are connected to a rotating shaft. A drive wheel is fixedly provided at one end of the rotating shaft. A driven wheel is engaged on one side of the drive wheel. The driven wheel is fixedly provided at the bottom end of the corresponding screw.

[0005] Preferably, the dual-head motor is connected to the rotating shaft via a reducer, and the reducer is fixedly connected to the dual-head motor via a coupling. A bearing seat is fixedly provided at the bottom of the mounting bracket corresponding to the rotating shaft, and the rotating shaft is rotatably connected to the inside of the bearing seat.

[0006] Preferably, the detection device includes a circuit board, a probe, an alarm light, and a control panel. The circuit board is installed on the top of the inner cavity of the protective bracket, the probe is installed at the bottom opening of the protective bracket, and the probe is electrically connected to the circuit board. The alarm light is installed on the top side of the protective bracket and is electrically connected to the circuit board. The control panel is installed at the side wall opening of the protective bracket and is electrically connected to the circuit board.

[0007] Preferably, limit rods are fixedly installed at the four bottom corners of the protective bracket, and the limit rods are movably inserted through the interior of the fixed plate.

[0008] The beneficial technical effects of this utility model are as follows: by setting a screw and a threaded cylinder between the mounting frame and the protective bracket, and driving the dual-head motor, the lifting control of the protective bracket is realized. Thus, when the food to be detected is large, the height of the protective bracket and the detection device can be increased, and when the food to be detected is small, the height of the protective bracket and the detection device can be decreased, thereby improving the overall passability of the food metal detector and avoiding the phenomenon of weak signal when small food passes through the detector. Attached Figure Description

[0009] Figure 1 The front structural cross-sectional view of this utility model is shown.

[0010] Figure 2 A side view of the present invention is shown.

[0011] Attached figures: 1. Mounting bracket; 2. Conveyor belt; 3. Protective bracket; 4. Detection device; 401. Circuit board; 402. Detector head; 403. Alarm light; 404. Control panel; 5. Fixing plate; 6. Screw; 7. Threaded cylinder; 8. Dual-head motor; 9. Rotating shaft; 10. Drive wheel; 11. Driven wheel; 12. Reducer; 13. Bearing seat; 14. Limit rod. Detailed Implementation

[0012] Preferred embodiments of the present invention will now be described with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.

[0013] This utility model proposes a food metal detector, including a mounting frame 1, a conveyor belt 2, a protective bracket 3, and a detection device 4. The conveyor belt 2 is disposed on the top of the mounting frame 1, the detection device 4 is installed inside the protective bracket 3, and the protective bracket 3 is disposed above the mounting frame 1.

[0014] Fixing plates 5 are fixedly installed on both sides of the outer wall of the mounting frame 1. Screws 6 are rotatably installed inside the fixing plates 5. A threaded cylinder 7 is threadedly connected to the upper part of the outer wall of the screws 6. The threaded cylinder 7 is fixedly installed at the bottom of the protective bracket 3. When the two screws 6 rotate synchronously, the protective bracket 3 can be driven to move longitudinally through the threaded connection with the threaded cylinder 7, thereby controlling the distance between the protective bracket 3, the detection device 4 and the food. This not only improves the passability, but also avoids the phenomenon of weak detection signal when small food items pass by. A double-headed motor 8 is fixedly installed at the bottom of the mounting frame 1. The two output ends of the double-headed motor 8 are connected to the rotating shaft 9. A drive wheel 10 is fixedly installed at one end of the rotating shaft 9. A driven wheel 11 is meshed on one side of the drive wheel 10. The driven wheel 11 is fixedly installed at the bottom end of the corresponding screw 6. The operation of the double-headed motor 8 can transmit power to the rotating shaft 9, and the rotating shaft 9 can drive the two screws 6 to rotate synchronously through the meshing of the drive wheel 10 and the driven wheel 11.

[0015] Specifically, the dual-head motor 8 is connected to the rotating shaft 9 via a reducer 12, and the reducer 12 is fixedly connected to the dual-head motor 8 via a coupling. The output speed of the dual-head motor 8 can be reduced by the reducer 12. A bearing seat 13 is fixedly installed at the bottom of the mounting bracket 1 corresponding to the rotating shaft 9. The rotating shaft 9 is rotatably connected to the inside of the bearing seat 13. The design of the bearing seat 13 can further improve the stability of the rotating shaft 9.

[0016] Specifically, the detection device 4 includes a circuit board 401, a detector head 402, an alarm light 403, and a control panel 404. The circuit board 401 is installed on the top of the inner cavity of the protective bracket 3, the detector head 402 is installed at the bottom opening of the protective bracket 3, and the detector head 402 is electrically connected to the circuit board 401. The alarm light 403 is installed on the top side of the protective bracket 3, and the alarm light 403 is electrically connected to the circuit board 401. The control panel 404 is installed at the side wall opening of the protective bracket 3, and the control panel 404 is electrically connected to the circuit board 401.

[0017] Specifically, limit rods 14 are fixedly installed at the four bottom corners of the protective bracket 3. The limit rods 14 are movably inserted through the interior of the fixed plate 5. The sliding limit structure between the limit rods 14 and the fixed plate 5 can increase the stability of the movement of the protective bracket 3.

[0018] For those skilled in the art, all electrical components and parts in this case are general standard parts or parts known to those skilled in the art. Their structures and principles can be known to those skilled in the art through technical manuals or conventional experimental methods. All models are compatible with this solution and can operate normally. All electrical components in this case are connected to their compatible power supplies through wires. According to the actual situation, a suitable controller is selected to meet the control requirements. The specific connection and control sequence should refer to the working principle below, and the electrical connection is completed by the sequential operation of each electrical component. The detailed connection method is a well-known technology in the art, and the electrical control will not be described further.

[0019] Working Principle: When using this food metal detector, the positions of the protective bracket 3 and the detection device 4 can be adjusted according to the volume of the food to be detected. At this time, the dual-head motor 8 can be started. The output speed of the dual-head motor 8 can be reduced by the reducer 12, while power is transmitted to the rotating shaft 9. The rotating shaft 9 drives two screws 6 to rotate synchronously through the meshing of the driving wheel 10 and the driven wheel 11. The rotating screws 6, through their threaded connection with the threaded cylinder 7, drive the protective bracket 3 to rise or fall, thereby controlling the distance between the protective bracket 3, the detection device 4, and the food. Then, the conveyor belt 2 is started, and the food is placed on top of the conveyor belt 2, transporting it to the detection area of ​​the detection device 4. When food containing metal passes the detector head 402, the alarm light 403 will sound an alarm to alert the staff that metal is present in the food. The food containing metal can then be sorted and collected.

[0020] Although the present invention has been described with reference to preferred embodiments, various modifications can be made to it and components can be replaced with equivalents without departing from the scope of the present invention. In particular, the technical features mentioned in the various embodiments can be combined in any manner as long as there is no structural conflict. The present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

[0021] In the description of this utility model, terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," which indicate direction or positional relationships, are based on the direction or positional relationships shown in the accompanying drawings. These are used merely for ease of description and do not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation; therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0022] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0023] The term "comprising" or any other similar term is intended to cover non-exclusive inclusion, such that a process, article, or apparatus / device that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to those processes, articles, or apparatus / devices.

[0024] The technical solution of this utility model has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the protection scope of this utility model is obviously not limited to these specific embodiments. Without departing from the principle of this utility model, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of this utility model.

Claims

1. A food metal detector, characterized in that: It includes a mounting frame (1), a conveyor belt (2), a protective bracket (3), and a detection device (4). The conveyor belt (2) is located on the top of the mounting frame (1), the detection device (4) is installed inside the protective bracket (3), and the protective bracket (3) is located above the mounting frame (1). Fixing plates (5) are fixedly installed on both sides of the outer wall of the mounting bracket (1). A screw (6) is rotatably installed inside the fixing plate (5). A threaded cylinder (7) is threadedly connected to the upper part of the outer wall of the screw (6). The threaded cylinder (7) is fixedly installed at the bottom of the protective bracket (3). A double-headed motor (8) is fixedly installed at the bottom of the mounting bracket (1). A rotating shaft (9) is connected to both output ends of the double-headed motor (8). A driving wheel (10) is fixedly installed at one end of the rotating shaft (9). A driven wheel (11) is meshed on one side of the driving wheel (10). The driven wheel (11) is fixedly installed at the bottom end of the corresponding screw (6).

2. The food metal detector according to claim 1, characterized in that: The dual-head motor (8) is connected to the rotating shaft (9) via a reducer (12), and the reducer (12) is fixedly connected to the dual-head motor (8) via a coupling. The bottom of the mounting bracket (1) is fixedly provided with a bearing seat (13) corresponding to the rotating shaft (9), and the rotating shaft (9) is rotatably connected to the inside of the bearing seat (13).

3. The food metal detector according to claim 1, characterized in that: The detection device (4) includes a circuit board (401), a probe (402), an alarm light (403), and a control panel (404). The circuit board (401) is installed on the top of the inner cavity of the protective bracket (3). The probe (402) is installed at the bottom opening of the protective bracket (3) and is electrically connected to the circuit board (401). The alarm light (403) is installed on the top side of the protective bracket (3) and is electrically connected to the circuit board (401). The control panel (404) is installed at the side wall opening of the protective bracket (3) and is electrically connected to the circuit board (401).

4. A food metal detector according to claim 1, characterized in that: Limiting rods (14) are fixedly installed at the four bottom corners of the protective bracket (3), and the limiting rods (14) are movably inserted through the interior of the fixing plate (5).

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