Powder pesticide weighing device

Abstract

The utility model discloses a powder pesticide weighing device, and belongs to the field of powder weighing equipment. Comprising a discharging hopper, a spiral conveyor is arranged at the lower end of the discharging hopper, a weighing barrel is arranged below the output end of the spiral conveyor, a weighing sensor is arranged at the bottom in the weighing barrel, and a rotating device is arranged on the weighing barrel; the rotating device comprises rotating shafts arranged at the front end and the rear end of the weighing barrel, and the ends of the rotating shafts are arranged on the supporting plate. The device has the beneficial effects that when the device is used, powder pesticide is added into the spiral conveyor through the discharging hopper, is uniformly pushed by the spiral conveyor, is output from the spiral conveyor and falls into the weighing barrel below; then the weight of the powder is weighed through a weighing sensor in the weighing barrel, after the weight reaches the standard, the spiral conveyor is stopped, then the rotating device is started to control the whole weighing barrel to rotate, and the powder in the weighing barrel is poured into a packaging bag or a packaging barrel; quantitative packaging of powder can be achieved.

Description

Technical Field

[0001] This utility model relates to a powder pesticide weighing device, belonging to the field of powder weighing equipment. Background Technology

[0002] When packaging powdered pesticides, weighing and quantification are necessary to ensure that the powdered pesticide in each bag has the same weight. Currently, our factory places the mixed powdered pesticide in a bucket, weighs the bucket on a scale, and then pours it into the packaging bags. Controlling the weight of the powdered pesticide relies on the experience of the workers. Sometimes, the amount of pesticide in the bucket may be slightly inaccurate, leading to small differences in the weight of the powdered pesticide in each bag. These small differences can affect the sale of the pesticide. Therefore, we need to design a device that can precisely control the weight of the powdered pesticide in the packaging bags. Utility Model Content

[0003] The purpose of this invention is to provide a weighing device for powdered pesticides that can effectively solve the above-mentioned problems.

[0004] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0005] It includes a feeding hopper, a screw conveyor is provided at the lower end of the feeding hopper, a weighing barrel is provided below the output end of the screw conveyor, a weighing sensor is provided at the bottom of the weighing barrel, and a rotating device is provided on the weighing barrel;

[0006] The rotating device includes a rotating shaft disposed at the front and rear ends of the weighing barrel. The end of the rotating shaft is disposed on a support plate, and a motor is disposed on the support plate located at the front. The output end of the motor is keyed to the rotating shaft located at the front.

[0007] Furthermore, the support plate is also provided with a balancing device, which includes a circular balancing plate located below the weighing barrel. The balancing plate has lifting plates at its front and rear ends. The lifting plates are slidably disposed in a groove passing through the front and rear ends of the support plate. A screw is threadedly connected to the lifting plate located at the front end, and a limit rod is slidably disposed on the lifting plate located at the rear end. A motor is provided at one end of the screw.

[0008] Furthermore: the two support plates are provided with a first mounting plate located above the slide groove and a second mounting plate located below the slide groove; the screw is rotatably disposed between the first mounting plate and the second mounting plate; the limiting rod is fixed between the first mounting plate and the second mounting plate; the motor is fixed to the upper end of the first mounting plate and the output end of the motor is connected to the screw.

[0009] Furthermore: a base plate is provided at the bottom of the weighing barrel, a weighing plate is provided above the base plate, a sandwich space is formed between the weighing plate and the base plate, and the weighing sensor is disposed in the sandwich space.

[0010] Furthermore: the hopper is cone-shaped, a top plate is provided at the middle of the top of the hopper, a stirring motor is provided on the top plate, a stirrer is connected to the output end of the stirring motor, and flip covers are hinged to both sides of the top plate.

[0011] The beneficial effects are:

[0012] When using this device, the powdered pesticide is added to the screw conveyor through the hopper. After being evenly propelled by the screw conveyor, the powder is discharged from the screw conveyor and falls into the weighing bin below. The weighing sensor in the weighing bin then weighs the powder. Once the weight reaches the target value, the screw conveyor is stopped, and the rotating device is started to control the rotation of the entire weighing bin, pouring the powder into packaging bags or packaging drums. This setup allows for the quantitative packaging of powders.

[0013] Meanwhile, this device takes into account that the weight of the entire weighing barrel is provided by two rotating shafts. When the powder falls into the weighing barrel, the powder will bring an impact force to the weighing barrel. This impact force will be transmitted to the motor through the rotating shafts, which will lead to a short service life of the entire equipment. Therefore, in order to solve this problem, this device is also equipped with a balancing device to help the rotating shafts and motor stabilize the weighing barrel. Attached Figure Description

[0014] For ease of explanation, this utility model is described in detail below with reference to the specific embodiments and accompanying drawings.

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a part drawing of the rotating device of this utility model;

[0017] Figure 3 This is a top view of the feeding hopper of this utility model;

[0018] Figure 4 This is a cross-sectional view of the weighing bucket of this utility model.

[0019] Explanation of reference numerals in the attached figures:

[0020] 1. Feed hopper; 11. Top plate; 12. Mixing motor; 13. Flip cover; 2. Screw conveyor; 3. Weighing drum; 31. Bottom plate; 32. Weighing plate; 33. Interlayer space; 4. Weighing sensor; 5. Rotating device; 51. Rotating shaft; 52. Support plate; 53. Motor; 6. Balancing device; 61. Balancing plate; 62. Lifting plate; 63. Slide chute; 64. Screw; 65. Limiting rod; 66. Motor; 67. First mounting plate; 68. Second mounting plate. Detailed Implementation

[0021] The embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0022] It should be noted that, in the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and 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, and therefore should not be construed as a limitation of this utility model.

[0023] Furthermore, the terms “first,” “second,” “third,” etc., are used for descriptive purposes only and should not be interpreted as indicating or implying relative importance.

[0024] Furthermore, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected" and "linked" 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. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0025] See Figure 1-4 This is one embodiment of a powder pesticide weighing device according to the present invention.

[0026] It includes a feeding hopper 1, a screw conveyor 2 at the lower end of the feeding hopper 1, a weighing barrel 3 below the output end of the screw conveyor 2, a weighing sensor 4 at the bottom of the weighing barrel 3, and a rotating device 5 on the weighing barrel 3.

[0027] The rotating device 5 includes a rotating shaft 51 disposed at the front and rear ends of the weighing barrel 3. The end of the rotating shaft 51 is disposed on the support plate 52, and a motor 53 is disposed on the support plate 52 located in front. The output end of the motor 53 is keyed to the rotating shaft 51 located in front.

[0028] When using this device, the powdered pesticide is added to the screw conveyor 2 through the hopper 1. After being evenly propelled by the screw conveyor 2, the powder is output from the screw conveyor 2 and falls into the weighing barrel 3 below. The weight of the powder is then measured by the weighing sensor 4 inside the weighing barrel 3. Once the weight reaches the target value, the screw conveyor 2 is stopped, and the rotating device 5 is started to control the rotation of the entire weighing barrel 3, pouring the powder from the weighing barrel 3 into packaging bags or packaging barrels. This setup allows for the quantitative packaging of powder.

[0029] The specific working principle of the rotating device 5 is that the motor 53 drives the rotating shaft 51 to rotate, thereby driving the entire weighing bucket 3 to rotate.

[0030] Meanwhile, this device takes into account that the weight of the entire weighing barrel 3 is provided by two rotating shafts 51. When the powder falls into the weighing barrel 3, the powder will bring an impact force to the weighing barrel 3. This impact force will be transmitted to the motor 53 by the rotating shaft 51, which will lead to a short service life of the entire device. Therefore, in order to solve this problem, this device is also equipped with a balancing device 6 to help the rotating shaft 51 and the motor 53 stabilize the weighing barrel 3.

[0031] The balancing device 6 includes a circular balancing plate 61 disposed below the weighing barrel 3. Lifting plates 62 are disposed at the front and rear ends of the balancing plate 61. The lifting plates 62 are slidably disposed in the sliding grooves 63 that pass through the front and rear ends of the support plate 52. A screw 64 is threadedly connected to the lifting plate 62 located at the front, and a limit rod 65 is slidably disposed on the lifting plate 62 located at the rear. A motor 66 is disposed at one end of the screw 64.

[0032] When the powder is added from the screw conveyor 2 into the weighing barrel 3, the balance plate 61 is close to the bottom of the weighing barrel 3 and provides support for the weighing barrel 3.

[0033] After the powder is conveyed, the motor 66 can be started. The motor 66 drives the screw 64 to rotate. Then, through the limitation of the limit rod 65, the two lifting plates 62 can be raised and lowered, thereby driving the balance plate 61 to descend, so that the balance plate 61 is away from the weighing barrel 3, providing space for the subsequent rotation of the weighing barrel 3.

[0034] After the powder is poured out of the weighing barrel 3, the motor 53 is used again to adjust the direction of the weighing barrel 3, and then the motor 66 is operated to raise the balance plate 61 and continue to stick it to the bottom of the weighing barrel 3; thus completing one cycle.

[0035] Two support plates 52 are provided with a first mounting plate 67 located above the slide groove 63 and a second mounting plate 68 located below the slide groove 63. A screw 64 is rotatably disposed between the first mounting plate 67 and the second mounting plate 68. A limiting rod 65 is fixed between the first mounting plate 67 and the second mounting plate 68. A motor 66 is fixed at the upper end of the first mounting plate 67, and the output end of the motor 66 is connected to the screw 64.

[0036] The main function of the first mounting plate 67 and the second mounting plate 68 in this device is to set the screw 64 and the limit rod 65, so that the lifting plate 62 can drive the balance plate 61 to rise and fall.

[0037] The weighing barrel 3 has a bottom plate 31 at the bottom and a weighing plate 32 above the bottom plate 31. A sandwich space 33 is formed between the weighing plate 32 and the bottom plate 31, and the weighing sensor 4 is installed in the sandwich space 33.

[0038] In this device, the powder falls onto the weighing plate 32, and the pressure on the weighing plate 32 is transmitted to the weighing sensor 4, which can accurately measure the weight of the powder.

[0039] The feeding hopper 1 is a cone-shaped hopper. A top plate 11 is provided at the middle of the top of the feeding hopper 1. A stirring motor 12 is provided on the top plate 11. An agitator is connected to the output end of the stirring motor 12. Flip covers 13 are hinged to both sides of the top plate 11.

[0040] The powder in this device is a mixture. When adding it, open the flip covers 13 on both sides of the top plate 11, add the two powders into the feed hopper 1, and then start the stirring motor 12 to control the stirrer to stir the powder. The evenly mixed powder will then enter the large screw conveyor 2.

[0041] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A weighing device for powdered pesticides, characterized in that: The device includes a hopper (1), a screw conveyor (2) at the lower end of the hopper (1), a weighing barrel (3) below the output end of the screw conveyor (2), a weighing sensor (4) at the bottom of the weighing barrel (3), and a rotating device (5) on the weighing barrel (3); the rotating device (5) includes a rotating shaft (51) at the front and rear ends of the weighing barrel (3), the end of the rotating shaft (51) is set on a support plate (52), and a motor (53) is set on the support plate (52) at the front, and the output end of the motor (53) is keyed to the rotating shaft (51) at the front.

2. The powder pesticide weighing device according to claim 1, characterized in that: The support plate (52) is also provided with a balancing device (6), which includes a circular balancing plate (61) located below the weighing barrel (3). The balancing plate (61) has lifting plates (62) at its front and rear ends. The lifting plates (62) are slidably disposed in a groove (63) that passes through the front and rear ends of the support plate (52). A screw (64) is threadedly connected to the lifting plate (62) located in front, and a limit rod (65) is slidably disposed on the lifting plate (62) located in the rear. A motor (66) is provided at one end of the screw (64).

3. The powder pesticide weighing device according to claim 2, characterized in that: The two support plates (52) are provided with a first mounting plate (67) above the slide groove (63) and a second mounting plate (68) below the slide groove (63). The screw (64) is rotatably disposed between the first mounting plate (67) and the second mounting plate (68). The limiting rod (65) is fixed between the first mounting plate (67) and the second mounting plate (68). The motor (66) is fixed at the upper end of the first mounting plate (67) and the output end of the motor (66) is connected to the screw (64).

4. The powder pesticide weighing device according to claim 3, characterized in that: The weighing bucket (3) has a bottom plate (31) at the bottom and a weighing plate (32) above the bottom plate (31). A sandwich space (33) is formed between the weighing plate (32) and the bottom plate (31). The weighing sensor (4) is located in the sandwich space (33).

5. The powder pesticide weighing device according to claim 1, characterized in that: The feeding hopper (1) is cone-shaped. A top plate (11) is provided at the middle of the top of the feeding hopper (1). A stirring motor (12) is provided on the top plate (11). A stirrer is connected to the output end of the stirring motor (12). Flip covers (13) are hinged on both sides of the top plate (11).

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