Food detecting and sorting device
The food inspection and sorting device, designed with a pure mechanical transmission system and adjusting screw limit block, solves the problems of high operation and maintenance costs and fixed threshold design, realizes efficient and low-cost food sorting, adapts to the sorting needs of different product specifications, and improves sorting accuracy and equipment life.
Patent Information
- Application Number
- CN202520296948.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-24
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2035-02-24
AI Technical Summary
Existing food testing and sorting equipment relies on professional technicians for debugging and maintenance, which is difficult for small and medium-sized enterprises to afford due to high operation and maintenance costs. Traditional mechanical sorting equipment adopts a fixed threshold design, and the sorting accuracy cannot be dynamically adjusted, making it difficult to adapt to the sorting needs of products of different specifications.
A purely mechanical transmission system was designed, consisting of a frame, a feeding conveyor belt, a detection mechanism, a sorting pusher mechanism, a diversion slide, a collection box, a drive motor, a cam assembly, a linkage rod, and a return spring. The cam assembly and linkage rod work together to achieve precise sorting. Combined with the design of the adjusting screw and the limit block, a sorting accuracy control of ±2mm is achieved. The buffer pad and return spring structure reduces mechanical wear.
It achieves low-cost, high-efficiency sorting response speed and accuracy, with sorting response speed increased to 0.3 seconds/time, sorting accuracy adjustment efficiency improved by 60%, equipment lifespan extended by 3 times, and maintenance requirements reduced.
Smart Images
Figure CN223832889U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of food processing machinery, and in particular to a food testing and sorting device. Background Technology
[0002] Food inspection and sorting devices are key equipment in industrialized food production, primarily used for the rapid screening of food products on the production line based on weight, size, or appearance defects to ensure product compliance with quality standards. Currently, mainstream electronically controlled sorting systems achieve high-precision sorting through sensor detection combined with pneumatic actuators, and are widely used in large-scale food processing enterprises. These devices collect data using electronic components such as photoelectric sensors and pressure sensors, which are then analyzed by a processor to drive the sorting mechanism, effectively improving sorting efficiency and accuracy. This significantly contributes to ensuring food safety and reducing human sorting errors.
[0003] However, existing electronic sorting devices have significant drawbacks: the equipment relies on professional technicians for debugging and maintenance, making it difficult for small and medium-sized enterprises to afford the high operating and maintenance costs; traditional mechanical sorting devices, while simple in structure, mostly adopt fixed threshold designs, and the sorting accuracy cannot be dynamically adjusted, making it difficult to adapt to the sorting needs of products of different specifications. Therefore, a food inspection and sorting device is proposed. Utility Model Content
[0004] The purpose of this invention is to provide a food inspection and sorting device to solve the above-mentioned problems. It addresses the obvious defects of existing electronic sorting devices: the equipment relies on professional technicians for debugging and maintenance, and small and medium-sized enterprises cannot afford the high operation and maintenance costs; although traditional mechanical sorting devices have simple structures, they mostly adopt fixed threshold designs, and the sorting accuracy cannot be dynamically adjusted, making it difficult to adapt to the sorting needs of products of different specifications.
[0005] To address the aforementioned problems, this utility model provides a technical solution: a food inspection and sorting device, comprising a frame, a feeding conveyor belt, a guide rail, an inspection mechanism, a sorting push rod mechanism, a diversion chute, a qualified product collection box, a non-qualified product collection box, a drive motor, a transmission shaft, a cam assembly, a linkage rod, a return spring, an adjusting screw, a limit block, a buffer pad, support legs, a weight sensing plate, a trigger arm, and a sorting plate; support legs are fixedly connected to the four corners of the lower surface of the frame; a feeding conveyor belt is fixedly connected to the left side of the upper end of the frame; a guide rail is fixedly connected to the right side of the feeding conveyor belt; an inspection mechanism is provided below the end of the guide rail; the specific structure of the inspection mechanism is as follows: it includes a weight sensing plate and a trigger arm, the weight sensing plate is movably connected to the crossbeam in the middle of the frame via a hinge; a trigger arm is fixedly connected below the weight sensing plate; a sorting plate is fixedly connected to the right side of the frame. The push rod mechanism, specifically, comprises a drive motor, a transmission shaft, and a cam assembly. The drive motor is fixedly connected to the lower right side of the frame, and its output shaft is fixedly connected to the transmission shaft. Three equidistantly distributed cam assemblies are fixedly connected to the transmission shaft. A linkage rod is movably connected to the outer edge of each cam assembly. A sorting plate is movably connected to the other end of the linkage rod. The sorting plate is slidably connected to the guide groove of the diversion slide. The diversion slide is fixedly connected to the upper right side of the frame, and its end is divided into a qualified product collection box and a non-qualified product collection box. A return spring is fixedly connected to the middle of the linkage rod, and the other end of the return spring is fixedly connected to the side wall of the frame. An adjusting screw is provided on the top of the sorting plate, and the lower end of the adjusting screw passes through the sorting plate and is threaded with a locking nut. Limit blocks are fixedly connected to both sides of the diversion slide, and buffer pads are fixedly connected to the surface of the limit blocks.
[0006] Preferably, the bottom of the support leg is provided with anti-slip threads.
[0007] Preferably, the guide rail surface is coated with polytetrafluoroethylene.
[0008] Preferably, the detection mechanism comprises a counterweight, a balance bar, a rotating shaft, a limiting rod, and a trigger protrusion. A balance bar is fixedly connected below the weight sensing plate. The middle part of the balance bar is movably connected to the frame via the rotating shaft. A counterweight is fixedly connected to the left end of the balance bar. A limiting rod is fixedly connected to the right end of the balance bar. A trigger protrusion is provided at the end of the limiting rod. The trigger protrusion is clearance-fitted with the trigger arm.
[0009] Preferably, the counterweight is provided with a vertical adjustment threaded hole.
[0010] Preferably, the surface of the limiting rod is provided with a wear-resistant ceramic layer.
[0011] The beneficial effects of this utility model are: (1) This utility model has a reasonable and simple structure, low production cost, convenient installation, and complete functions. Through the cam group of the sorting push rod mechanism and the linkage rod, the cam profile changes to drive the sorting plate to move accurately. Pure mechanical transmission avoids the energy consumption problem of pneumatic / electric system and the sorting response speed is increased to 0.3 seconds / time.
[0012] (2) This utility model is designed with the adjustment screw and the limit block working together: by finely adjusting the advance stroke of the sorting plate through the thread, the sorting accuracy control of ±2mm can be achieved, which can adapt to the sorting needs of different sizes of food and improve the adjustment efficiency by 60% compared with the traditional manual positioning.
[0013] (3) The present invention absorbs the impact force when the sorting plate moves by setting a combination structure of buffer pad and reset spring, reduces the wear rate of mechanical parts, extends the continuous working life of the equipment to more than 8,000 hours, and extends the maintenance cycle by 3 times. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the structure of this utility model.
[0015] Figure 2 This is a partial structural diagram of the testing mechanism of this utility model. Figure 1 .
[0016] Figure 3 This is a schematic diagram of the sorting push rod mechanism of this utility model.
[0017] Figure 4 This is a partial structural diagram of the testing mechanism of this utility model. Figure 2 .
[0018] 1-Frame; 2-Feed conveyor belt; 3-Guide rail; 4-Detection mechanism; 401-Counterweight; 402-Balance bar; 403-Rotating shaft; 404-Limit rod; 405-Trigger protrusion; 5-Sorting push rod mechanism; 6-Diverting slide; 7-Qualified product collection box; 8-Unqualified product collection box; 9-Drive motor; 10-Transmission shaft; 11-Cam assembly; 12-Linkage rod; 13-Reset spring; 14-Adjusting screw; 15-Limit block; 16-Buffer pad; 17-Support leg; 18-Weight sensing plate; 19-Trigger arm; 20-Sorting plate. Detailed Implementation
[0019] like Figures 1 to 4As shown, this specific embodiment adopts the following technical solution: A food testing and sorting device, including a frame 1, a feeding conveyor belt 2, a guide rail 3, a testing mechanism 4, a sorting push rod mechanism 5, a diversion slide 6, a qualified product collection box 7, a non-qualified product collection box 8, a drive motor 9, a transmission shaft 10, a cam group 11, a linkage rod 12, a return spring 13, an adjusting screw 14, a limit block 15, a buffer pad 16, a support leg 17, a weight sensing plate 18, a trigger arm 19, and a sorting plate 20; the frame 1 is shown in the table below. Support legs 17 are fixedly connected to the four corners of the frame 1; a feeding conveyor belt 2 is fixedly connected to the upper left side of the frame 1; a guide rail 3 is fixedly connected to the right side of the feeding conveyor belt 2; a detection mechanism 4 is provided below the end of the guide rail 3; the specific structure of the detection mechanism 4 is as follows: it includes a weight sensing plate 18 and a trigger arm 19, the weight sensing plate 18 is movably connected to the crossbeam in the middle of the frame 1 by a hinge; a trigger arm 19 is fixedly connected below the weight sensing plate 18; a sorting push rod is fixedly connected to the right side of the frame 1. Mechanism 5; The specific structure of the sorting pusher mechanism 5 is as follows: it includes a drive motor 9, a transmission shaft 10, and a cam group 11. The drive motor 9 is fixedly connected to the lower right side of the frame 1, and its output shaft is fixedly connected to the transmission shaft 10. Three equidistantly distributed cam groups 11 are fixedly connected to the transmission shaft 10. A linkage rod 12 is movably connected to the outer edge of each cam group 11. A sorting plate 20 is movably connected to the other end of the linkage rod 12. The sorting plate 20 is slidably connected in the guide groove of the diversion slide 6. The diversion slide 6 is fixedly connected to the upper right side of the frame 1, and its end is divided into a qualified product collection box 7 and a non-qualified product collection box 8; a return spring 13 is fixedly connected to the middle of the linkage rod 12, and the other end of the return spring 13 is fixedly connected to the side wall of the frame 1; an adjusting screw 14 is provided on the top of the sorting plate 20, and the lower end of the adjusting screw 14 passes through the sorting plate 20 and is threaded with a locking nut; limit blocks 15 are fixedly connected to both sides of the diversion slide 6, and buffer pads 16 are fixedly connected to the surface of the limit blocks 15.
[0020] The support leg 17 has anti-slip threads at its bottom; the guide rail 3 has a polytetrafluoroethylene coating on its surface.
[0021] like Figures 1 to 4 As shown, the specific structure of the detection mechanism 4 is as follows: it includes a counterweight 401, a balance bar 402, a rotating shaft 403, a limiting rod 404, and a trigger protrusion 405; the balance bar 402 is fixedly connected to the lower part of the weight sensing plate 18; the middle part of the balance bar 402 is movably connected to the frame 1 through the rotating shaft 403; the counterweight 401 is fixedly connected to the left end of the balance bar 402; the limiting rod 404 is fixedly connected to the right end of the balance bar 402; the trigger protrusion 405 is provided at the end of the limiting rod 404; the trigger protrusion 405 is clearance-fitted with the trigger arm 19.
[0022] The counterweight 401 is provided with a vertical adjustment threaded hole; the surface of the limiting rod 404 is provided with a wear-resistant ceramic layer.
[0023] The utility model is used as follows: It has a reasonable and simple structure, low production cost, convenient installation, and complete functions. In use, food is first conveyed to the guide rail 3 via the feeding conveyor belt 2. The polytetrafluoroethylene coating on the surface of the guide rail 3 reduces frictional resistance, allowing the food to slide smoothly onto the weight sensing plate 18 of the detection mechanism 4. When the food contacts the weight sensing plate 18, its gravity drives the balance bar 402 to swing around the rotating shaft 403. The preset weight threshold of the counterweight block 401 determines the swing amplitude. When the food is overweight, the limit rod 404 at the right end of the balance bar 402 drives the trigger protrusion 405 to press down the trigger arm 19. The displacement of the trigger arm 19 triggers the start of the drive motor 9, which drives the transmission shaft 10 to rotate. The three cam groups 11 fixed to the transmission shaft 10 rotate with the shaft, and their outer contours push the linkage rod 12 to produce reciprocating motion. The linkage rod 12 drives the sorting plate 20 to slide along the guide groove of the diversion slide 6, and the return spring 13 provides a restoring force when the sorting plate 20 returns. The adjusting screw 14 finely adjusts the advancing depth of the sorting plate 20 through the thread, while the limiting block 15 and the buffer pad 16 limit the maximum stroke of the sorting plate 20 and buffer the impact; the sorting plate 20 pushes overweight food into the non-conforming product collection box 8, while qualified products slide naturally into the qualified product collection box 7 along the diversion slide 6, completing the sorting cycle.
[0024] In the description of this utility model, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "side", "top", "inner", "front", "center", "both ends", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to 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.
[0025] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0026] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications may be made to this utility model without departing from its spirit and scope. All such changes and modifications fall within the scope of protection of this utility model as defined by the appended claims and their equivalents.
[0027] The control method of this utility model is to control the device by manually starting and stopping the switch. The wiring diagram of the power element and the supply of power are common knowledge in the field. Since this utility model is mainly used to protect mechanical devices, the control method and wiring layout will not be explained in detail.
Claims
1. A food detection and sorting device, characterized in that: It includes a frame (1), a feeding conveyor belt (2), a guide rail (3), a detection mechanism (4), a sorting pusher mechanism (5), a diversion slide (6), a qualified product collection box (7), a non-qualified product collection box (8), a drive motor (9), a transmission shaft (10), a cam assembly (11), a linkage rod (12), a return spring (13), an adjusting screw (14), a limit block (15), a buffer pad (16), a support leg (17), a weight sensing plate (18), a trigger arm (19), and a sorting plate (20). The frame (1) has four fixed support legs (17) at the four corners of its lower surface. The upper left side of the frame (1) is fixedly connected to the feeding conveyor belt (2); The right side of the feeding conveyor belt (2) is fixedly connected to a guide rail (3); A detection mechanism (4) is provided below the end of the guide rail (3); The specific structure of the detection mechanism (4) is as follows: it includes a weight sensing plate (18) and a trigger arm (19). The weight sensing plate (18) is movably connected to the crossbeam in the middle of the frame (1) by a hinge. A trigger arm (19) is fixedly connected below the weight sensing plate (18). A sorting push rod mechanism (5) is fixedly connected to the right side of the frame (1). The specific structure of the sorting push rod mechanism (5) is as follows: it includes a drive motor (9), a transmission shaft (10) and a cam group (11). The drive motor (9) is fixedly connected to the lower right side of the frame (1), and its output shaft is fixedly connected to the transmission shaft (10). Three cam groups (11) are fixedly connected to the drive shaft (10) at equal intervals. Each of the cam groups (11) has a linkage rod (12) movably connected to its outer edge; The other end of the linkage rod (12) is movably connected to a sorting plate (20); The sorting plate (20) is slidably connected to the guide groove of the diversion slide (6); The diversion slide (6) is fixedly connected to the upper right side of the frame (1), and its end is divided into a qualified product collection box (7) and a non-qualified product collection box (8). A return spring (13) is fixedly connected to the middle of the linkage rod (12), and the other end of the return spring (13) is fixedly connected to the side wall of the frame (1); The top of the sorting plate (20) is provided with an adjusting screw (14), the lower end of which passes through the sorting plate (20) and is threaded with a locking nut; Limiting blocks (15) are fixedly connected to both sides of the diversion slide (6), and buffer pads (16) are fixedly connected to the surface of the limiting blocks (15).
2. The food detection and sorting device according to claim 1, characterized in that: The bottom of the support leg (17) is provided with anti-slip threads.
3. The food detection and sorting device according to claim 1, characterized in that: The guide rail (3) has a polytetrafluoroethylene coating on its surface.
4. The food detection and sorting device according to claim 1, characterized in that: The specific structure of the detection mechanism (4) is as follows: it includes a counterweight (401), a balance bar (402), a rotating shaft (403), a limiting rod (404), and a trigger protrusion (405). A balance bar (402) is fixedly connected below the weight sensing plate (18). The middle part of the balance bar (402) is movably connected to the frame (1) via a pivot (403); A counterweight (401) is fixedly connected to the left end of the balance bar (402). The right end of the balance bar (402) is fixedly connected to a limit rod (404). The end of the limiting rod (404) is provided with a trigger protrusion (405). The trigger protrusion (405) and the trigger arm (19) are configured with a clearance fit.
5. The food detection and sorting device according to claim 4, characterized in that: The counterweight (401) is provided with a vertical adjustment threaded hole.
6. The food detection and sorting device according to claim 4, characterized in that: The surface of the limiting rod (404) is provided with a wear-resistant ceramic layer.