Automatic sorting device for bagged granular media
By designing an automatic sorting device, efficient automatic sorting and weighing of bagged granular culture medium was achieved, solving the problems of low efficiency and error in existing technologies, and improving production efficiency and product quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- QINGDAO HIGH-TECH IND PARK HAIBO BIOTECHNOLOGY CO LTD
- Filing Date
- 2025-07-21
- Publication Date
- 2026-07-07
Smart Images

Figure CN224463229U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of weight sorting devices, specifically an automatic sorting device for bagged granular culture media. Background Technology
[0002] Pouch-packaged granular culture medium is a small-sized, weigh-free medium that customers can directly dissolve and use, making it convenient. It is available in 100mL, 200mL, and 300mL portions according to customer needs. Upon receipt, customers can simply add the granules to their prepared experimental water for subsequent operations. The dosage requirements for microbial culture media are quite strict; large deviations will affect the effectiveness. Standard packaging contains bags weighing less than 10g each, making it lightweight. Currently, the industry standard for testing this is manual weighing using an electronic balance, which is time-consuming, labor-intensive, and prone to errors. Utility Model Content
[0003] This invention provides an automatic sorting device for bagged granular culture medium, which solves the technical problem of low efficiency in manual weighing of bagged granular culture medium in the prior art.
[0004] This utility model is implemented as follows: it includes a transmission mechanism, a sorting mechanism, and a weighing mechanism. The sorting mechanism is installed at the output end of the transmission mechanism and includes a sorting platform, a sorting rod, and a drive mechanism. The weighing mechanism is installed on the sorting platform. The sorting rod is installed at the end of the sorting platform that is farther away from the transmission mechanism and is connected to the drive mechanism. The sorting rod rotates above the sorting platform. Both the sorting rod and the weighing mechanism are connected to a control mechanism. The weighing mechanism includes a weighing pan and a weighing device. The weighing pan is connected to the weighing sensor. The upper surface of the weighing pan and the upper surface of the sorting platform are on the same horizontal plane.
[0005] As a further preferred embodiment, the sorting platform is generally semi-circular, and the length of the sorting rod is adapted to the diameter of the semi-circle.
[0006] As a further preferred embodiment, the arc-shaped baffle is installed on the arc-shaped edge of the sorting platform.
[0007] As a further preferred embodiment, two sorting areas are installed on both sides of the end of the sorting mechanism that is farther away from the transmission mechanism, and the two sorting areas are a qualified area and a non-qualified area, respectively.
[0008] As a further preferred embodiment, a protective device is included, which is installed above the automatic sorting device for bagged granular culture media.
[0009] As a further preferred embodiment, the protective device includes a protective plate, on which a scraping port and a display screen are provided, and the display screen is connected to the control mechanism.
[0010] The working principle of this invention is as follows: the conveying mechanism is connected to the packaging process. Packaged products are transported to the sorting platform of the sorting mechanism via the conveying mechanism. The weighing mechanism weighs the products, and the weighing sensor transmits the weight data to the control mechanism. The control mechanism sends instructions to the drive mechanism. If the product weight meets the standard, the sorting rod rotates in one direction, pushing the product towards the qualified area. When the sorting rod reaches its maximum angle in that direction, the product falls into the qualified area, and the sorting rod remains stationary, waiting for the next product to be weighed. If the second product weight does not meet the standard, the sorting rod rotates counterclockwise, pushing the product towards the unqualified area, where it falls. The sorting rod remains stationary, waiting for the next product to be weighed. If the second product weight meets the standard, the sorting rod continues to rotate clockwise from its stationary position, pushing the product towards the qualified area, where it falls. The conveying mechanism transports subsequent products, and the sorting mechanism, in conjunction with the weighing mechanism, repeats the aforementioned actions to complete the sorting process.
[0011] The beneficial effects of this invention are as follows: Products are transferred to the sorting platform via a conveying mechanism, automatically weighed by a weighing mechanism, and sorted by rotating sorting rods, resulting in high efficiency. Products can be connected to the packaging process; sorting can begin immediately after packaging, making operation convenient and requiring no modifications to existing production lines. Attached Figure Description
[0012] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0013] Figure 1 This is a schematic diagram of the overall structure of one embodiment of the present utility model;
[0014] Figure 2 yes Figure 1 Side view;
[0015] Figure 3 yes Figure 1 A schematic diagram of the transmission mechanism structure;
[0016] Figure 4 yes Figure 1 A schematic diagram of the sorting mechanism;
[0017] Figure 5 yes Figure 1 A schematic diagram of the weighing mechanism;
[0018] Figure 6 yes Figure 1 A schematic diagram of the protective device structure;
[0019] Figure 7 This is a schematic diagram of the sorting platform structure.
[0020] The diagram shows the following markings: 1-Transmission mechanism; 2-Sorting mechanism; 3-Weighing mechanism; 4-Protective device; 5-Conveyor belt; 6-Motor; 7-Speed controller; 8-Foot; 9-Sorting rod; 10-Sorting platform; 11-Baffle; 12-Baffle plate; 13-Origin sensor baffle; 14-Origin sensor; 15-Servo motor; 16-Weighing pan; 17-Weighing sensor; 18-Fixed shaft; 19-Protective plate; 20-Sweeping port; 21-Display screen; 22-Shock-absorbing foot; 23-Electrical distribution box; 24-Base plate; 25-Weighing sensor mounting plate; 26-Indicator light; 27-First notch; 28-Second notch. Detailed Implementation
[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example
[0022] See Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 An automatic sorting device for bagged granular culture medium includes a transmission mechanism 1, a sorting mechanism 2, and a weighing mechanism 3. The sorting mechanism 2 is installed at the output end of the transmission mechanism 1 and includes a sorting platform 10, a sorting rod 9, and a drive mechanism 15. The weighing mechanism 3 is installed on the sorting platform 10. The sorting rod 9 is installed at the end of the sorting platform 10 furthest from the transmission mechanism 1 and is connected to the drive mechanism 15. The drive mechanism 15 is installed below the sorting platform 10, and the sorting rod 9 rotates above the sorting platform 10. Both the sorting rod 9 and the weighing mechanism 3 are connected to a control mechanism (not shown). In this embodiment, the control system is a PLC. The weighing mechanism 3 includes a weighing pan 16 and a weighing sensor 17. The weighing pan 16 is connected to the weighing sensor 17, and the upper surface of the weighing pan 16 is at the same horizontal plane as the upper surface of the sorting platform 10. In this embodiment, the upper surface of the transmission mechanism 1 is higher than this horizontal plane.
[0023] See Figure 3The transmission mechanism 1 is a belt conveyor connected to the packaging line process. The belt conveyor includes a conveyor belt 5, a motor 6, a speed controller 7, and a frame. The conveyor belt 5 is mounted on the frame, the motor 6 is mounted on one side of the frame, and the speed controller 7 is mounted on the front side of the frame. The frame includes feet 8. The speed controller 7 can adjust the transmission speed of the conveyor belt 5. The belt conveyor is a model from existing technology.
[0024] See Figure 4 In this embodiment, the sorting platform 10 is semi-circular in shape, and the length of the sorting rod 9 is adapted to the diameter of the semi-circle. The length of the sorting rod 9 is the same as the diameter of the semi-circle, and the sorting rod 9 is a horizontal rod, which can be a square rod. The center of the sorting rod 9 coincides with the center of the semi-circle, and the center of the sorting rod 9 has a mounting hole. The mounting hole is connected to the rotating shaft at the upper end of the drive mechanism 15 through a bushing. The rotating shaft extends upward and passes through the center of the semi-circle. The drive mechanism 15 is a servo motor, which drives the sorting rod 9 to rotate 180° clockwise or counterclockwise above the sorting platform 10, pushing the product to the corresponding sorting area. An origin sensor baffle and an origin sensor are installed between the sorting rod 9 and the bushing. Each time the sorting rod 9 rotates 180°, the origin sensor enables the rotating shaft to return to the correct zero position. The arc-shaped baffle 11 is installed on the arc-shaped edge of the sorting platform 10, and the baffle 11 is vertically installed on the sorting platform 10.
[0025] Two sorting zones are set on both sides of the end of the sorting mechanism furthest from the conveying mechanism. These zones are designated as qualified and unqualified areas, respectively. Both zones are equipped with receiving devices, which include a funnel and a receiving box. The funnel is installed on the side of the sorting platform 10, and the receiving box is installed below the funnel. Products fall into the receiving box through the funnel. The rotation speed of the sorting rod 9 is set to an appropriate speed to ensure that excessive rotation speed does not cause issues such as bagged culture media flying out. Furthermore, the speed of the conveyor belt 5 must be coordinated with the rotation speed of the sorting rod 9, at least set so that the sorting speed of the sorting rod 9 is greater than the conveying speed of the conveyor belt 5, ensuring smooth product sorting without being too inefficient or causing product accumulation on the sorting platform 10. Several fixed shafts 18 are installed on the bottom surface of the sorting platform 10 for stability.
[0026] See Figure 5The weighing mechanism 3 includes a weighing pan 16, a load cell 17, a load cell mounting plate 25, and a fixed shaft. The weighing pan 16 is mounted on the load cell 17, and the load cell 17 is connected to the fixed shaft 18 via the load cell mounting plate 25. The fixed shaft 18 of the weighing mechanism 3 is adapted to the fixed shaft 18 of the sorting mechanism 2, ensuring that the upper surface of the weighing pan 16 and the upper surface of the sorting platform 10 are on the same horizontal plane. (See reference...) Figure 7 In this embodiment, the sorting platform 10 is provided with a first notch 27 to accommodate the weighing pan 16. The first notch 27 is adapted to the weighing pan 16, and the weighing pan 16 can be placed in the first notch 27. The first notch 27 is close to the output end of the transmission mechanism 1, and the packages transmitted by the transmission mechanism 1 fall directly onto the weighing pan 16. The surface area of the weighing pan 16 is much larger than that of the packaging bag, improving weighing accuracy. In this embodiment, to maximize the weighing range of the weighing pan 16, one side of the first notch 27 extends to the arc-shaped plate of the sorting platform 10, and the corresponding other side extends to the straight side of the sorting platform 10 to form a second notch 28. The width of the second notch 28 is smaller than the width of the first notch 27, and the second notch 28 is used to install the sorting rod 9. Since the first notch 27 and the second notch 28 penetrate the entire sorting platform 10, dividing the sorting platform 10 into left and right parts, a baffle 12 extends horizontally from the arc-shaped edge of part of the sorting platform 10. The baffle 12 connects the aforementioned left and right parts to form the complete sorting platform 10, while also providing support for the baffle 11. The baffle 12 is located below the conveying mechanism 1 and does not affect weighing.
[0027] See Figure 1 , Figure 2 and Figure 6To prevent dust from falling onto the weighing pan 16 and affecting weighing accuracy, the automatic sorting device for bagged granular culture medium includes a protective device 4. Without the protective device 4, the weighing pan 16 and sorting platform 10 can be wiped frequently to maintain cleanliness. The protective device 4 is installed above the automatic sorting device. The protective device includes a protective plate 19, a fixed shaft 18, an electrical distribution box 23, and a base plate 24. In this embodiment, the protective plate 19 is a PC board, equipped with a material sweeping port 20, a display screen 21, and indicator lights 26. The indicator lights 26 are for defective products and are connected to the control system. Both the indicator lights 26 and the display screen 21 are connected to the control system. When the weighing mechanism 3 detects a defective product, the indicator lights 26 flash, and the display screen simultaneously shows the number of defective products. After all products are weighed, the display screen shows the total number of products weighed, the pass rate, and the defective rate. The protective plate 19 is connected to the base plate 24 via the fixed shaft 18. The bottom surface of the base plate 24 is equipped with shock-absorbing feet. When the protective device 4 is installed, the fixed shaft 18 of the sorting mechanism 2 can be installed on the base plate 24. The sorting platform 10 is located above the power distribution box 23, saving space.
[0028] The working principle of this invention is as follows: the conveying mechanism is connected to the packaging process. Packaged products are transported to the sorting platform of the sorting mechanism via the conveying mechanism. The weighing mechanism weighs the products, and the weighing sensor transmits the weight data to the control mechanism. The control mechanism sends instructions to the drive mechanism. If the product weight meets the standard, the sorting rod rotates in one direction, pushing the product towards the qualified area. When the sorting rod reaches its maximum angle in that direction, the product falls into the qualified area, and the sorting rod remains stationary, waiting for the next product to be weighed. If the second product weight does not meet the standard, the sorting rod rotates counterclockwise, pushing the product towards the unqualified area, where it falls. The sorting rod remains stationary, waiting for the next product to be weighed. If the second product weight meets the standard, the sorting rod continues to rotate clockwise from its stationary position, pushing the product towards the qualified area, where it falls. The conveying mechanism transports subsequent products, and the sorting mechanism, in conjunction with the weighing mechanism, repeats the aforementioned actions to complete the sorting process.
[0029] The beneficial effects of this invention are as follows: Products are transferred to the sorting platform via a conveying mechanism, automatically weighed by a weighing mechanism, and sorted by rotating sorting rods, resulting in high efficiency. Products can be connected to the packaging process; sorting can begin immediately after packaging, making operation convenient and requiring no modifications to existing production lines.
[0030] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. An automatic sorting device for bagged granular culture medium, characterized in that, The system includes a transmission mechanism, a sorting mechanism, and a weighing mechanism. The sorting mechanism is installed at the output end of the transmission mechanism and includes a sorting platform, a sorting rod, and a drive mechanism. The weighing mechanism is installed on the sorting platform. The sorting rod is installed at the end of the sorting platform furthest from the transmission mechanism and is connected to the drive mechanism. The sorting rod rotates above the sorting platform. Both the sorting rod and the weighing mechanism are connected to a control mechanism. The weighing mechanism includes a weighing pan and a weighing device. The weighing pan is connected to a weighing sensor. The upper surface of the weighing pan is at the same horizontal plane as the upper surface of the sorting platform.
2. The automatic sorting device for bagged granular culture medium according to claim 1, characterized in that, The sorting platform is semi-circular in shape, and the length of the sorting rod is adapted to the diameter of the semi-circle.
3. The automatic sorting device for bagged granular culture medium according to claim 2, characterized in that, The sorting platform has arc-shaped baffles installed on its arc-shaped edges.
4. The automatic sorting device for bagged granular culture medium according to claim 1, characterized in that, Two sorting areas are installed on both sides of the end of the sorting mechanism that is farther away from the transmission mechanism. The two sorting areas are a qualified area and a non-qualified area, respectively.
5. The automatic sorting device for bagged granular culture medium according to claim 1, characterized in that, It includes a protective device installed above the automatic sorting device for bagged granular culture medium.
6. The automatic sorting device for bagged granular culture medium according to claim 5, characterized in that, The protective device includes a protective plate, on which a sweeping port and a display screen are provided. The speed of the conveyor belt 5 and the sorting rod 9 can be controlled through the display screen.