Metal detecting and screening device

Abstract

The utility model provides a metal detecting and screening device, which belongs to the technical field of metal detection, aims to solve the problem that food detection efficiency is affected due to the fact that food flattening consumes long time, and comprises an instrument support frame, a metal detection bin, a food conveying belt, a positioning mounting plate, a conical feeding hopper, a first partition plate and a second partition plate. The metal detection bin is in bolted connection with the upper part of the instrument support frame; the food conveying belt is arranged on the upper portion of the instrument supporting frame. The positioning mounting plates are fixedly connected to the front side and the rear side of the instrument supporting frame. The conical feeding hopper is in bolted connection with the upper part of the positioning mounting plate; the first partition plate is fixedly connected to the lower portion of the conical feeding hopper. The second partition plate is connected to the lower portion of the first partition plate in a sliding mode. According to the utility model, the food paving efficiency is improved, a large amount of time is saved, and the food detection efficiency is improved.

Description

Technical Field

[0001] This utility model belongs to the field of metal detection technology, and more specifically, it relates to a metal detection and screening device. Background Technology

[0002] During food processing, the food is first laid on the conveyor belt of the metal detector, and then transported to the detection chamber by the conveyor belt. Food without metal foreign objects will be transported to the next processing station by the conveyor belt. When food containing metal foreign objects is detected, the guide plate will flip over, and the unqualified food will fall into the collection box along the flipped guide plate.

[0003] For example, CN220804493U discloses an adjustable food metal detection device, including a production table. The top of the production table is equipped with a telescopic detection frame and a distance detection frame. The telescopic detection frame consists of a bottom support, a top lifting frame, and a control cylinder. The top wall of the top lifting frame is equipped with a metal detector. This utility model, by setting a distance sensor, achieves the effect of detecting the height and size of food. The operation control cylinder can control the up and down displacement of the metal detector, so that the position of the metal detector can be adjusted according to the height and size of the food, increasing the accuracy of metal residue detection in the food. The operation push cylinder can drive a push plate to push non-good food products, which are then collected by the non-good product receiving box. The limiting component provides anti-collision protection. The device can adjust the distance according to the size of different ingredients, has high detection quality, and can automatically screen non-good products with good screening effect.

[0004] When testing food, excessive accumulation of materials can prevent the metal detector's probe from fully contacting each food item, affecting the testing results. Therefore, staff need to flatten the piled-up food, which increases their workload and takes a long time, thus affecting the efficiency of food testing. Utility Model Content

[0005] To address the aforementioned technical problems, this utility model provides a metal detection and screening device. This device solves the problem that when food is being tested, excessive material accumulation can prevent the metal detector's probe from fully contacting each food item, affecting the detection results. Consequently, workers are required to flatten the accumulated food, leading to a heavy workload and a prolonged testing time, thus impacting the efficiency of food testing.

[0006] The purpose and effectiveness of this utility model's metal detection and screening device are achieved through the following specific technical means:

[0007] A metal detection and screening device includes an instrument support frame, a metal detection chamber, a food conveyor belt, positioning mounting plates, a transmission structure, a limiting structure, a conical feeding hopper, a first partition plate, and a second partition plate. The metal detection chamber is bolted to the upper part of the instrument support frame. The food conveyor belt is located on the upper part of the instrument support frame. Two positioning mounting plates are provided, and the two positioning mounting plates are respectively fixedly connected to the front and rear sides of the instrument support frame. The transmission structure is located on the front side of the positioning mounting plates. The conical feeding hopper is bolted to the upper parts of the two positioning mounting plates. The first partition plate is fixedly connected to the lower part of the conical feeding hopper. The second partition plate is slidably connected to the lower part of the first partition plate. The limiting structure is located below the conical feeding hopper.

[0008] Furthermore, the limiting structure includes a food limiting baffle and a food limiting brush; two food limiting baffles are provided, and the two food limiting baffles are respectively fixedly connected to the lower part of the two positioning mounting plates; the food limiting brush is fixedly connected to the left side of the two positioning mounting plates.

[0009] Furthermore, the limiting structure also includes a limiting mounting plate and a reset elastic element; two limiting mounting plates are provided, and the two limiting mounting plates are respectively fixedly connected to the left and right sides of the conical feeding hopper; multiple reset elastic elements are provided, and the second partition plate is elastically connected to the two limiting mounting plates through multiple reset elastic elements.

[0010] Furthermore, the limiting structure also includes limiting guide plates and limiting guide grooves; multiple limiting guide plates are provided, and the multiple limiting guide plates are evenly distributed and fixedly connected to the left and right sides of the first partition plate; multiple limiting guide grooves are provided, and the multiple limiting guide grooves are evenly distributed and opened on the left and right sides of the second partition plate, and the multiple limiting guide grooves are slidably connected to the multiple limiting guide plates respectively.

[0011] Furthermore, the transmission structure includes a first transmission shaft and a synchronous transmission structure; the first transmission shaft is rotatably connected to the lower part of the front positioning mounting plate; the synchronous transmission structure is a chain drive mechanism, and the first transmission shaft is connected to the drive roller of the food conveyor belt.

[0012] Furthermore, the transmission structure also includes extrusion cams and transmission mounting rods; there are two transmission mounting rods, which are rotatably connected to the left and right sides of the two positioning mounting plates respectively; there are four extrusion cams, which are fixedly connected to the front and rear sides of the two transmission mounting rods respectively.

[0013] Furthermore, the transmission structure also includes a driving gear and a driven gear; the driving gear is fixedly connected to the rear side of the first transmission shaft; there are two driven gears, which are respectively fixedly connected to the front side of the two transmission mounting rods, and the driving gear meshes with the two driven gears.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] This invention separates food using a first and second partition plate, allowing the food to fall sequentially. This avoids excessive food falling at once and causing accumulation on the food conveyor belt, ensuring accurate test results. It also eliminates the inconvenience of manually spreading the food, reducing the workload of staff, improving food spreading efficiency, saving significant time, and enhancing the testing efficiency and effectiveness of the screening device. The food limiting brush further ensures the uniformity of food spreading, guaranteeing testing results. The food limiting baffle prevents food from rolling to the side of the food conveyor belt, preventing food from falling off the edge during operation. The action of the squeezing cam causes the second partition plate to move up and down continuously. During this movement, the second partition plate collides with the first partition plate, generating vibrations and preventing food from clogging both partition plates and affecting normal use. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0017] Figure 2 This is a schematic diagram showing the installation position of the food limiting brush of this utility model.

[0018] Figure 3 This is a schematic diagram showing the installation position of the food limiting baffle of this utility model.

[0019] Figure 4 This is a schematic diagram showing the positional relationship between the first partition plate and the second partition plate of this utility model.

[0020] Figure 5 This is a schematic diagram showing the disassembled structure of the first partition plate, the transmission mounting rod, and the second partition plate of this utility model.

[0021] Figure 6 This is a utility model Figure 5 A magnified schematic diagram of the structure at point A in the middle.

[0022] In the diagram, the correspondence between component names and drawing numbers is as follows:

[0023] 1. Instrument support frame; 2. Metal detection chamber; 3. Food conveyor belt; 4. Positioning mounting plate; 401. First drive shaft; 402. Synchronous transmission structure; 403. Active drive gear; 404. Transmission mounting rod; 405. Driven gear; 406. Food limiting baffle; 407. Extrusion cam; 408. Food limiting brush; 5. Conical feeding hopper; 501. Limiting mounting plate; 6. First partition plate; 601. Limiting guide plate; 7. Second partition plate; 701. Limiting guide groove; 702. Reset elastic element. Detailed Implementation

[0024] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples.

[0025] Example 1:

[0026] As attached Figure 1 To be continued Figure 6 As shown:

[0027] This utility model provides a metal detection and screening device, including an instrument support frame 1, a metal detection chamber 2, a food conveyor belt 3, a positioning mounting plate 4, a transmission structure, a conical feeding hopper 5, a first partition plate 6, and a second partition plate 7. The metal detection chamber 2 is bolted to the upper part of the instrument support frame 1. The food conveyor belt 3 is located on the upper part of the instrument support frame 1. Two positioning mounting plates 4 are provided, and the two positioning mounting plates 4 are respectively fixedly connected to the front and rear sides of the instrument support frame 1. The transmission structure is located on the front side of the positioning mounting plate 4. The conical feeding hopper 5 is bolted to the upper part of the two positioning mounting plates 4. The first partition plate 6 is fixedly connected to the lower part of the conical feeding hopper 5. The second partition plate 7 is slidably connected to the lower part of the first partition plate 6.

[0028] The transmission structure includes a first transmission shaft 401 and a synchronous transmission structure 402. The first transmission shaft 401 is rotatably connected to the lower part of the front positioning mounting plate 4. The synchronous transmission structure 402 is a chain drive mechanism, and the first transmission shaft 401 is connected to the drive roller of the food conveyor belt 3.

[0029] The transmission structure also includes a pressing cam 407 and a transmission mounting rod 404; there are two transmission mounting rods 404, which are rotatably connected to the left and right sides of the two positioning mounting plates 4 respectively; there are four pressing cams 407, which are fixedly connected to the front and rear sides of the two transmission mounting rods 404 respectively.

[0030] The transmission structure also includes a drive gear 403 and a driven gear 405. The drive gear 403 is fixedly connected to the rear side of the first transmission shaft 401. There are two driven gears 405, which are fixedly connected to the front side of the two transmission mounting rods 404 respectively. The drive gear 403 meshes with the two driven gears 405.

[0031] The specific usage and function of this embodiment: Food (e.g., goji berries) is poured into the conical feeding hopper 5 inside the positioning mounting plate 4, so that the food falls from the first partition plate 6 and the second partition plate 7 onto the food conveyor belt 3. The food conveyor belt 3 transports the food to the metal detection chamber 2 for metal detection, thereby achieving the screening of the food. At this time, the drive roller of the food conveyor belt 3 will drive the first drive shaft 401 to rotate through the synchronous transmission structure 402. When the first drive shaft 401 rotates, it will drive the active drive gear 403 to rotate, so that the active drive gear 403 pushes the driven drive gear 405 and the transmission mounting rod 404 to rotate. When the transmission mounting rod 404 rotates, it will drive the extrusion cam 407 to rotate, so that the extrusion cam 407 continuously strikes the second partition plate 7, causing the second partition plate 7 to slide up and down, preventing the food from getting stuck in the second partition plate 7.

[0032] Example 2:

[0033] As attached Figure 2 To be continued Figure 6 As shown:

[0034] Based on Embodiment 1, a limiting structure is also included; the limiting structure is located below the conical feeding hopper 5.

[0035] The limiting structure includes a food limiting baffle 406 and a food limiting brush 408; there are two food limiting baffles 406, which are fixedly connected to the lower part of the two positioning mounting plates 4 respectively; the food limiting brush 408 is fixedly connected to the left side of the two positioning mounting plates 4.

[0036] The limiting structure also includes a limiting mounting plate 501 and a reset elastic element 702; there are two limiting mounting plates 501, which are fixedly connected to the left and right sides of the conical feeding hopper 5 respectively; there are multiple reset elastic elements 702, and the second partition plate 7 is elastically connected to the two limiting mounting plates 501 through multiple reset elastic elements 702.

[0037] The limiting structure also includes limiting guide plates 601 and limiting guide grooves 701; multiple limiting guide plates 601 are provided, and multiple limiting guide plates 601 are evenly distributed and fixedly connected to the left and right sides of the first partition plate 6; multiple limiting guide grooves 701 are provided, and multiple limiting guide grooves 701 are evenly distributed and opened on the left and right sides of the second partition plate 7, and multiple limiting guide grooves 701 are slidably connected to multiple limiting guide plates 601 respectively.

[0038] The specific usage and function of this embodiment are as follows: When food falls onto the food conveyor belt 3, the food limiting baffle 406 restricts the position of the food, the food limiting brush 408 can sweep away the stacked food during the movement of the food, the limiting guide plate 601 and the limiting guide groove 701 can limit the movement of the second partition plate 7, the reset elastic member 702 can make the second partition plate 7 quickly reset, and the limiting mounting plate 501 can determine the installation position of the reset elastic member 702.

[0039] The following points should be noted in this article:

[0040] 1. The accompanying drawings of the embodiments disclosed herein only relate to the structures involved in the embodiments disclosed herein; other structures can be referred to in general design.

[0041] 2. Where there is no conflict, the embodiments of this disclosure and the features in the embodiments can be combined with each other to obtain new embodiments.

[0042] The above are merely specific embodiments of this disclosure, but the scope of protection of this disclosure is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this disclosure should be included within the scope of protection of this disclosure. Therefore, the scope of protection of this disclosure should be determined by the scope of the claims.

Claims

1. A metal detection and screening device, comprising an instrument support frame (1), a metal detection chamber (2), a food conveyor belt (3), a positioning mounting plate (4), a transmission structure, a limiting structure, a conical feeding hopper (5), a first partition plate (6), and a second partition plate (7); wherein the metal detection chamber (2) is bolted to the upper part of the instrument support frame (1); and the food conveyor belt (3) is disposed on the upper part of the instrument support frame (1); characterized in that: Two positioning mounting plates (4) are provided, and the two positioning mounting plates (4) are respectively fixedly connected to the front and rear sides of the instrument support frame (1); the transmission structure is provided on the front side of the positioning mounting plate (4); the conical feeding hopper (5) is bolted to the upper part of the two positioning mounting plates (4); the first partition plate (6) is fixedly connected to the lower part of the conical feeding hopper (5); the second partition plate (7) is slidably connected to the lower part of the first partition plate (6); the limiting structure is provided below the conical feeding hopper (5).

2. The metal detection and screening device as described in claim 1, characterized in that: The transmission structure includes a first transmission shaft (401) and a synchronous transmission structure (402); the first transmission shaft (401) is rotatably connected to the lower part of the front positioning mounting plate (4); the synchronous transmission structure (402) is a chain drive mechanism, and the first transmission shaft (401) is connected to the drive roller of the food conveyor belt (3).

3. The metal detection and screening device as described in claim 2, characterized in that: The transmission structure also includes a compression cam (407) and a transmission mounting rod (404); there are two transmission mounting rods (404), which are rotatably connected to the left and right sides of the two positioning mounting plates (4); there are four compression cams (407), which are fixedly connected to the front and rear sides of the two transmission mounting rods (404).

4. The metal detection and screening device as described in claim 3, characterized in that: The transmission structure further includes a driving gear (403) and a driven gear (405); the driving gear (403) is fixedly connected to the rear side of the first transmission shaft (401); there are two driven gears (405), which are fixedly connected to the front side of the two transmission mounting rods (404) respectively, and the driving gear (403) meshes with the two driven gears (405).

5. The metal detection and screening device as described in claim 1, characterized in that: The limiting structure includes a food limiting baffle (406) and a food limiting brush (408); there are two food limiting baffles (406), and the two food limiting baffles (406) are respectively fixedly connected to the lower part of the two positioning mounting plates (4); the food limiting brush (408) is fixedly connected to the left side of the two positioning mounting plates (4).

6. The metal detection and screening device as described in claim 1, characterized in that: The limiting structure also includes a limiting mounting plate (501) and a reset elastic element (702); there are two limiting mounting plates (501), which are respectively fixedly connected to the left and right sides of the conical feeding hopper (5); there are multiple reset elastic elements (702), and the second partition plate (7) is elastically connected to the two limiting mounting plates (501) through multiple reset elastic elements (702).

7. The metal detection and screening device as described in claim 1, characterized in that: The limiting structure further includes limiting guide plates (601) and limiting guide grooves (701); multiple limiting guide plates (601) are provided, and multiple limiting guide plates (601) are evenly distributed and fixedly connected to the left and right sides of the first partition plate (6); multiple limiting guide grooves (701) are provided, and multiple limiting guide grooves (701) are evenly distributed and opened on the left and right sides of the second partition plate (7), and multiple limiting guide grooves (701) are slidably connected to multiple limiting guide plates (601) respectively.

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