Weighing system for efficiently weighing dicyandiamide

Abstract

The utility model relates to a weighing system for efficiently weighing dicyandiamide, which comprises a platform, a stock bin arranged on the platform and two weighing and unloading cars, a discharge port is arranged at the bottom of the stock bin, and a star-shaped unloading valve is mounted on the discharge port; the platform is provided with a guide rail located below the stock bin, the weighing and discharging trolley comprises a rail trolley and a discharging hopper, the rail trolley is arranged on the guide rail and reciprocates along the guide rail, the discharging hopper is supported on the rail trolley through a weighing sensor, a discharging pipe is arranged at the bottom of the discharging hopper, and an electric control valve is installed on the discharging pipe. The two bagging stations are respectively arranged on the ground below the two ends of the guide rail, and are used for receiving materials discharged by the two weighing and unloading cars respectively. According to the utility model, the materials are weighed in real time while being taken, and the materials are directly bagged after being weighed, so that the weighing is accurate. And weighing adjustment after bagging is not needed, so that the material weighing efficiency is greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of dicyandiamide processing technology, specifically to a high-efficiency weighing system for weighing dicyandiamide. Background Technology

[0002] Dicyandiamide, also known as dicyandiamide, is a white, prismatic crystalline powder. It is an important fine chemical raw material that can be used in pharmaceuticals, dyes, coatings, pesticides, electronics, glass fibers, lubricants, and flame retardants.

[0003] Currently, dicyandiamide packaging involves workers pouring the pre-packaged product into packaging bags and weighing it. This usually requires multiple people working together, with one person holding the packaging bag and another pouring the product into the bag. This is not only time-consuming and labor-intensive, but also makes it impossible for one person to perform the weighing and packaging operations. Furthermore, this method of packaging first and then weighing cannot accurately control the weight of the material, and personnel are required to adjust the weight later, resulting in low efficiency. Utility Model Content

[0004] This invention addresses the shortcomings of existing technologies by providing a highly efficient weighing system for dicyandiamide, which makes weighing and packaging more convenient and efficient.

[0005] This utility model is achieved through the following technical solution: a high-efficiency weighing system for dicyandiamide, comprising a platform, a hopper mounted on the platform, and two weighing and unloading trolleys. The hopper has a discharge port at its bottom, and a star-shaped discharge valve is installed on the discharge port. The platform has a guide rail located below the hopper. The weighing and unloading trolley includes a railcar mounted on the guide rail and reciprocating along the guide rail, and a discharge hopper. The discharge hopper is supported on the railcar by a weighing sensor. A discharge pipe is located at the bottom of the discharge hopper, and an electrically controlled valve is installed on the discharge pipe. The system also includes two bagging stations located on the ground below both ends of the guide rail, which respectively receive the material discharged from the two weighing and unloading trolleys.

[0006] As an optimization, the railcar includes a rectangular frame and two sets of wheels rotatably mounted on the rectangular frame. A driven gear is fixedly connected to the wheel axle of one set of wheels. A drive motor is fixedly mounted on the rectangular frame, and a drive gear that meshes with the driven gear is fixedly connected to the output end of the drive motor.

[0007] As an optimization, the unloading hopper is located inside a rectangular frame, and a rectangular support frame is fixed to the outer wall of the unloading hopper. The rectangular support frame and the rectangular frame are vertically opposite each other, and the weighing sensor is fixed between the rectangular support frame and the rectangular frame.

[0008] As an optimization, four weighing sensors are evenly distributed between the rectangular support frame and the rectangular frame.

[0009] As an optimization, the railcar is equipped with a signal locator, and the guide rail is equipped with three signal sensors that cooperate with the signal locator. One signal sensor is located below the hopper, and the other two signal sensors are located above the two bagging stations, respectively.

[0010] As an optimization, the bagging station includes a mobile trolley and a bag opening support frame fixed on the mobile trolley. The bag opening support frame includes two opposing support poles, and an arc-shaped plate is fixed to the top of the two support poles. The inner arcs of the two arc-shaped plates are arranged opposite each other.

[0011] As an optimization, the bagging station also includes a U-shaped protective railing, which is supported on the ground by support columns, and the mobile trolley is located inside the protective railing.

[0012] The beneficial effects of this invention are as follows: In this solution, the material in the silo is uniformly discharged through a star-shaped discharge valve. A weighing and unloading trolley moving along a guide rail moves to the bottom of the silo to receive the discharged material. The weighing and unloading trolley receives the material through a discharge hopper and simultaneously weighs it in real time using a weighing sensor. The discharge hopper, controlled by an electrically controlled valve, discharges and bags the material at the bagging station. This solution weighs the required weight in real time during unloading, and directly bags the material after weighing, ensuring accurate weighing. It eliminates the need for weighing adjustments after bagging, thus greatly improving material weighing efficiency.

[0013] Furthermore, this solution sets up two weighing and unloading vehicles and two bagging stations, allowing one weighing and unloading vehicle to be bagged while the other can be picking up material from the hopper, thus enabling cross-operation and improving bagging efficiency.

[0014] This solution uses the combination of signal sensors and signal positioners to position the unloading vehicle, making it more convenient to use. Attached Figure Description

[0015] Figure 1 This is a front view of the present utility model;

[0016] Figure 2 This is a side view of the present invention;

[0017] Figure 3 This is a front view of the weighing and unloading vehicle.

[0018] Figure 4 Top view of the weighing and unloading vehicle;

[0019] Figure 5 This is a schematic diagram of the three-dimensional structure of the bagging station;

[0020] As shown in the figure:

[0021] 1. Platform, 2. Hopper, 3. Star valve, 4. Guide rail, 5. Weighing and unloading trolley, 51. Railcar, 511. Rectangular frame, 512. Wheel, 513. Driven gear, 514. Drive gear, 515. Drive motor, 52. Unloading hopper, 521. Rectangular support frame, 53. Electrically controlled valve, 54. Weighing sensor, 6. Signal positioner, 7. Signal sensor, 8. Bagging station, 81. Mobile trolley, 82. Bag opening support frame, 821. Support pole, 822. Curved plate, 83. Guardrail, 9. Packaging bag, 10. Ladder, 11. CNC box. Detailed Implementation

[0022] To clearly illustrate the technical features of this solution, the following detailed implementation method will be used to explain the solution.

[0023] like Figures 1-5 As shown, a high-efficiency weighing system for dicyandiamide includes a platform 1, a silo 2 set on the platform 1, and two weighing and unloading vehicles 5. The bottom of the silo 2 is provided with a discharge port, and a star-shaped discharge valve 3 is installed on the discharge port.

[0024] In this embodiment, the hopper 2 is located at the center of the top of the platform 1. The platform 1 is equipped with a ladder 10 to facilitate workers' access for maintenance and other operations. The perimeter of the platform 1 is protected by a safety fence (not shown in the figure) to improve the safety of personnel.

[0025] The platform 1 is provided with a guide rail 4 located below the hopper 2. The weighing and unloading vehicle 5 includes a railcar 51 set on the guide rail 4 and reciprocating along the guide rail 4 and an unloading hopper 52. The unloading hopper 52 is supported on the railcar 51 by a weighing sensor 54. The bottom of the unloading hopper 52 is provided with a discharge pipe, and an electric control valve 53 is installed on the discharge pipe.

[0026] Specifically, the railcar 51 includes a rectangular frame 511 and two sets of wheels 512 rotatably mounted on the rectangular frame 511. A driven gear 513 is fixedly connected to the axle of one set of wheels 512. A drive motor 515 is fixedly mounted on the rectangular frame 511, and a drive gear 514 meshing with the driven gear 513 is fixedly connected to the output end of the drive motor 515. The drive motor 515 drives the drive gear 514 to rotate, thereby driving the driven gear 513 to rotate, which in turn drives the wheels 512 to rotate, thus enabling the railcar 51 to move along the guide rail 4.

[0027] Specifically, the unloading hopper 52 is located within the rectangular frame 511 and is suspended within the rectangular frame. A rectangular support frame 521 is fixed to the outer wall of the unloading hopper 52, and the rectangular support frame 521 and the rectangular frame 511 are vertically opposite each other. The weighing sensor 54 is fixed between the rectangular support frame 521 and the rectangular frame 511. In this embodiment, four weighing sensors 54 are evenly distributed between the rectangular support frame 521 and the rectangular frame 511. The upper end of the weighing sensor is fixed to the rectangular support frame, and the lower end of the weighing sensor is fixed to the rectangular frame.

[0028] It also includes two bagging stations 8 located on the ground below both ends of the guide rail 4, which are used to receive the materials discharged from the two weighing and unloading vehicles 5 respectively.

[0029] Specifically, the bagging station 8 includes a mobile trolley 81 and a bag opening support frame 82 fixed on the mobile trolley 81. The bag opening support frame 82 includes two opposing support poles 821. An arc-shaped plate 822 is fixed to the top of the two support poles 821, and the inner arcs of the two arc plates 822 are arranged opposite each other.

[0030] The bag opening support frame 82 forms a circular support structure for supporting the opening of the packaging bag 9 through two arc-shaped plates 822. In use, the operator rolls the bag opening outwards to fit it onto the circular support structure, thus opening the bag for filling, eliminating the need for the operator to hold the bag. After filling, the operator can directly push the bag away using a mobile trolley 81 for subsequent operations, making the bagging process more convenient and improving efficiency.

[0031] The bagging station 8 also includes a U-shaped protective railing 83, which is supported on the ground by support columns. The mobile cart 81 is located inside the protective railing 83. The protective railing serves two purposes: first, it protects personnel during bagging; second, it facilitates personnel in determining the parking position of the mobile cart, making it easier to coordinate with the weighing and unloading cart for bagging.

[0032] The track vehicle 51 is equipped with a signal locator 6, and the guide rail 4 is equipped with three signal sensors 7 that cooperate with the signal locator 6. One of the signal sensors 7 is located below the hopper 2, and the other two signal sensors 7 are located above the two bagging stations 8 respectively.

[0033] In this embodiment, the signal locator 6 is fixedly installed in the middle of the outer wall of the rectangular frame 511. The signal locator 6 and the signal sensor 7 work together to position the movement distance of the weighing unloading cart 5. When the signal locator 6 is opposite to the signal sensor 7 located below the hopper 2, the unloading hopper 52 of the weighing unloading cart 5 is directly below the star-shaped unloading valve 3. When the signal locator 6 is opposite to the signal sensor 7 located above the bagging station 8, the unloading hopper 52 is directly above the packaging bag 9 supported by the bag opening support frame 82.

[0034] It also includes a control box 11, which contains a controller. The star-shaped unloading valve 3, the electric control valve 53, the drive motor 515, the signal positioner 6, and the signal sensor 7 are all electrically connected to the controller.

[0035] Working principle: Before bagging, the personnel open the bag opening of the packaging bag 9 using the bag opening support frame 82 on the mobile trolley 81. The controller inputs the desired weight of the material into the control box. The controller first controls one of the weighing and unloading carts 5 to move towards the hopper 2. When the signal positioner 6 of this weighing and unloading cart 5 is aligned with the signal sensor 7 located below the hopper 2, the signal sensor 7 senses the signal and sends a feedback signal to the controller. The controller then controls the weighing and unloading cart 5 to stop moving. At this time, the unloading hopper 52 is directly below the star-shaped unloading valve 3.

[0036] The controller opens the star-shaped discharge valve 3 to discharge material into the discharge hopper 52. The discharge hopper 52 is weighed by the weighing sensor 54. When the set value is reached, the star-shaped discharge valve 3 closes. Then, the controller controls the weighing and unloading cart 5 to return along the same route. When the signal locator 6 is aligned with the signal sensor 7 located above the bagging station 8, the signal sensor 7 senses the signal and sends a feedback signal to the controller. The controller then controls the weighing and unloading cart 5 to stop moving. At this time, the discharge hopper 52 is directly above the bagging station 8. The controller then opens the electric valve 53 of the discharge hopper 52, thereby discharging the material into the packaging bag 9. After discharge, personnel can directly push the bag away using the mobile cart 81 for subsequent operations, thus completing the weighing and bagging of the material.

[0037] Furthermore, while the weighing and unloading vehicle 5 is filling bags, the controller controls another weighing and unloading vehicle 5 to move towards the hopper 2, repeating the above steps, thereby achieving cross-operation and further improving work efficiency.

[0038] Of course, the above description is not limited to the examples above. Technical features of this utility model not described can be implemented by or using existing technology, and will not be repeated here. The above embodiments and drawings are only used to illustrate the technical solution of this utility model and are not intended to limit this utility model. This utility model has been described in detail with reference to preferred embodiments. Those skilled in the art should understand that any changes, modifications, additions or substitutions made by those skilled in the art within the scope of this utility model do not depart from the spirit of this utility model and should also fall within the protection scope of the claims of this utility model.

Claims

1. A high-efficiency weighing system for dicyandiamide, characterized in that: Includes a platform (1), a hopper (2) set on the platform (1), and two weighing and unloading vehicles (5). The bottom of the hopper (2) is provided with a discharge port, and a star-shaped discharge valve (3) is installed on the discharge port. The platform (1) is provided with a guide rail (4) located below the hopper (2). The weighing and unloading vehicle (5) includes a railcar (51) set on the guide rail (4) and reciprocating along the guide rail and an unloading hopper (52). The unloading hopper (52) is supported on the railcar (51) by a weighing sensor (54). The bottom of the unloading hopper (52) is provided with a discharge pipe, and an electric control valve (53) is installed on the discharge pipe. It also includes two bagging stations (8) set on the ground below the two ends of the guide rail (4), which are used to receive materials from the two weighing and unloading vehicles (5) respectively.

2. The efficient weighing system for dicyandiamide according to claim 1, characterized in that: The railcar (51) includes a rectangular frame (511) and two sets of wheels (512) rotatably mounted on the rectangular frame. A driven gear (513) is fixedly connected to the wheel axle of one set of wheels (512). A drive motor (515) is fixedly mounted on the rectangular frame (511). A drive gear (514) that meshes with the driven gear (513) is fixedly connected to the output end of the drive motor.

3. The efficient weighing system for dicyandiamide according to claim 2, characterized in that: The unloading hopper (52) is located inside the rectangular frame (511). A rectangular support frame (521) is fixedly connected to the outer wall of the unloading hopper (52). The rectangular support frame (521) and the rectangular frame (511) are opposite each other. The weighing sensor (54) is fixed between the rectangular support frame and the rectangular frame.

4. The efficient weighing system for dicyandiamide according to claim 3, characterized in that: Four weighing sensors (54) are evenly distributed between the rectangular support frame (521) and the rectangular frame (511).

5. The efficient weighing system for dicyandiamide according to claim 1, characterized in that: The track car (51) is equipped with a signal locator (6), and the guide rail (4) is equipped with three signal sensors (7) that cooperate with the signal locator (6). One of the signal sensors (7) is located below the hopper (2), and the other two signal sensors (7) are located above the two bagging stations (8) respectively.

6. The efficient weighing system for dicyandiamide according to claim 1, characterized in that: The bagging station (8) includes a mobile trolley (81) and a bag opening support frame (82) fixed on the mobile trolley. The bag opening support frame (82) includes two opposing support poles (821), and an arc plate (822) is fixed to the top of the two support poles. The inner arcs of the two arc plates are arranged opposite each other.

7. The efficient weighing system for dicyandiamide according to claim 6, characterized in that: The bagging station (8) also includes a U-shaped guardrail (83), which is supported on the ground by support columns, and the mobile cart (81) is located inside the guardrail.

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