A metering scale with automatic feeding function

Abstract

This utility model discloses a weighing instrument with automatic feeding function, relating to the field of weighing instrument technology. It includes a frame, along the material conveying direction, on which are sequentially arranged: a first conveying mechanism for conveying material to be weighed; a weighing component located at the outlet end of the first conveying mechanism; a second conveying mechanism, its inlet end adjacent to the weighing component, for receiving the weighed material; a discharging component located at the outlet side of the second conveying mechanism; and a controller. This utility model, by setting up a weighing component, can both receive material from upstream equipment and transfer material to downstream equipment, realizing automated connection between the weighing station and upstream and downstream processes, ensuring the continuity of the production process. Furthermore, the grid structure allows the belt to pass through the carrier, so that at the moment of weighing, the material and the moving belt are separated from the load-bearing relationship in the vertical direction. This eliminates the interference of belt vibration weighing data, thereby increasing static weighing accuracy.

Description

Technical Field

[0001] This utility model relates to the field of weighing instrument technology, specifically a weighing instrument with automatic feeding function. Background Technology

[0002] In industrial production, especially in fields such as chemicals, food, and building materials where continuous batching or quantitative packaging is required, rapid and accurate weighing of bulk materials is a crucial production step. Traditional weighing instruments, such as platform scales and weighbridges, mostly require manual loading and unloading. That is, operators first move the materials to the weighing platform, record the weight, and then move them to the next process.

[0003] An existing patent (authorization announcement number: CN218369871U) discloses a weighing instrument with an automatic feeding function. The key technical points of the solution are: by placing the placement roller inside the storage frame, and the side wall of the placement roller is provided with a rotating rod that fits into the movable groove, the container can be rolled on the surface of the placement roller, which facilitates the movement of the container. The top of the storage frame is open, so there is no need to consider whether there are any obstructions on the top of the storage frame, reducing problems during measurement. Through the cooperation of the movable groove and the rotating rod, when the container is on top of the placement roller, the placement roller will be pressed downward by the container. The top plate, support rod and limiting plate will move downward with the placement roller, pressing the weight onto the measuring device. The weight is measured by the measuring device, which achieves the effect of conveniently weighing the container.

[0004] However, the above technical solutions still have certain defects. When weighing materials, it is impossible to weigh them during the transportation process, resulting in low weighing efficiency. At the same time, after weighing, it is impossible to distinguish materials of different weights, so material classification requires manual inspection and classification one by one, which results in low classification efficiency. Therefore, a weighing instrument with automatic feeding function is proposed. Utility Model Content

[0005] The purpose of this invention is to provide a weighing instrument with automatic feeding function to solve the problems in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: An automatic feeding weighing instrument includes a frame. Along the material conveying direction, the frame is sequentially equipped with: a first conveying mechanism for conveying materials to be weighed; a weighing component located at the outlet end of the first conveying mechanism; a second conveying mechanism with its inlet end adjacent to the weighing component for receiving weighed materials; a discharging component located at the outlet side of the second conveying mechanism; and a controller. The weighing component includes a base plate fixedly installed within the frame, a vertical plate vertically installed on the top of the base plate, a drive motor installed on the side of the vertical plate, a transmission roller fixedly installed at the output end of the drive motor, a belt strip installed on the surface of the transmission roller, two sets of drive motors and conveying rollers installed on the vertical plate and respectively located at both ends of the belt strip, a weighing device located on the top of the base plate, and a measuring instrument fixedly installed on the top of the weighing device.

[0007] Based on the above technical solutions, this utility model also provides the following optional technical solutions: As a further embodiment of this utility model: the measuring instrument includes a pressing block disposed on the top of the weighing device, a counterweight is fixedly installed on the top of the pressing block, and a carrier is fixedly installed on the top of the counterweight.

[0008] As a further improvement of this utility model: the carrier is a grid-like structure, and the grid gaps allow the belt strip to pass through, so that the bearing surface of the carrier is flush with the conveying surfaces of the first conveying mechanism and the second conveying mechanism.

[0009] As a further improvement of this utility model, both the first conveying mechanism and the second conveying mechanism are conveyor belts driven by motors.

[0010] As a further embodiment of this utility model: the feeding assembly includes a mounting plate fixedly installed on the side of the controller, a drive cylinder fixedly installed on the top of the mounting plate, a diversion flap hinged to the outlet side of the second conveying mechanism, and the side of the second conveying mechanism and the diversion flap are connected by a connector.

[0011] As a further improvement of this invention: the feeding assembly further includes an infrared sensor for detecting the position of the material, the infrared sensor being disposed on the side of the second conveying mechanism and electrically connected to the controller.

[0012] As a further improvement of this utility model, a collection box is provided on the frame below the sorting path corresponding to the feeding component.

[0013] As a further improvement of this utility model, the collection box is provided with multiple sets of partitions.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. This utility model, by setting up a weighing component, can both receive materials from upstream equipment and transfer materials to downstream equipment, realizing automated connection between the weighing station and the preceding and following processes, ensuring the continuity of the production process. Furthermore, the grid structure allows the belt to pass through the carrier, ensuring that at the moment of weighing, the material and the moving belt are separated from their load-bearing relationship in the vertical direction. This eliminates interference from belt vibration weighing data, thereby increasing static weighing accuracy.

[0015] 2. By setting up a feeding component, this utility model eliminates the need for manual intervention in the entire sorting process, which is automatically completed by the controller. This achieves full automation of the production line, greatly improves efficiency, and eliminates human error. The speed and force of the cylinder's movement can usually be adjusted, and the angle of the flip plate can also be optimized to adapt to materials of different weights, sizes, and materials, avoiding damage to the materials during sorting. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the weighing component of this utility model; Figure 3 This is a schematic diagram of the structure of the measuring instrument of this utility model; Figure 4 This is a schematic diagram of the feeding assembly of this utility model.

[0017] Figure reference numerals: 1. Frame; 2. First conveying mechanism; 3. Second conveying mechanism; 4. Controller; 5. Weighing assembly; 6. Discharge assembly; 51. Base plate; 52. Vertical plate; 53. Drive motor; 54. Belt belt; 55. Measuring instrument; 56. Weighing device; 551. Load-bearing device; 552. Counterweight; 553. Pressing block; 61. Mounting plate; 62. Drive cylinder; 63. Infrared sensor; 64. Connector; 65. Diverter flap; 66. Collection box. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.

[0019] In one embodiment, such as Figures 1-4As shown, a weighing instrument with automatic feeding function includes a frame 1. Along the material conveying direction, the frame 1 is sequentially provided with: a first conveying mechanism 2 for conveying the material to be weighed; a weighing component 5 located at the outlet end of the first conveying mechanism 2; a second conveying mechanism 3 with its inlet end adjacent to the weighing component 5 for receiving the weighed material; a discharging component 6 located at the outlet side of the second conveying mechanism 3; and a controller 4. In this embodiment, the material to be weighed is placed on the first conveying mechanism 2. The controller 4 starts the first conveying mechanism 2, continuously conveying the material forward. The material is transported from the end of the first conveying mechanism 2 to the weighing assembly 5. At this time, the controller 4 controls the first conveying mechanism 2 to pause, so that the material is completely stationary on the weighing assembly 5 for high-precision static weighing. The controller 4 receives weight data from the weighing sensor. After weighing is completed, the controller 4 starts the second conveying mechanism 3. The material on the weighing assembly 5 is transferred to the second conveying mechanism 3 and moves towards the unloading assembly 6 at the end. When the material reaches the unloading assembly 6 at the end of the second conveying mechanism 3, the controller 4 issues a command to the sorting assembly based on the previous judgment result.

[0020] In one embodiment, such as Figure 1 As shown, both the first conveying mechanism 2 and the second conveying mechanism 3 use motor-driven conveyor belts; the material is conveyed to the weighing component 5 for weighing through the conveyor belt in the first conveying mechanism 2, and the material is unloaded through the second conveying mechanism 3, and then placed in the collection box 66 for grading.

[0021] In one embodiment, such as Figure 2 As shown, the weighing assembly 5 includes a base plate 51 fixedly installed within the frame 1. A vertical plate 52 is vertically installed on the top of the base plate 51. A drive motor 53 is installed on the side of the vertical plate 52. A transmission roller is fixedly installed at the output end of the drive motor 53. A belt strip 54 is installed on the surface of the transmission roller. Two sets of drive motors 53 and conveyor rollers are installed on the vertical plate 52 and are respectively located at both ends of the belt strip 54. A weighing device 56 is installed on the top of the base plate 51, and a measuring instrument 55 is fixedly installed on the top of the weighing device 56. The two sets of drive motors 53 and conveyor rollers are respectively installed on the vertical plate 52. At both ends of 2, the belt 54 is driven to rotate. The belt 54 is at the same height as the first conveyor 2 and receives the material from the first conveyor 2. After the material reaches the weighing station, the belt 54 stops rotating and the material is pressed on the entire belt 54. The material is pressed on the belt 54 and placed stably on the weighing device 56 below. The weighing device 56 supports the material, and the system performs high-precision static weighing. The controller 4 records the weight data. After the weighing is completed, the drive motor 53 is started again to drive the belt 54 to convey the material again and discharge it through the second conveyor 3.

[0022] In one embodiment, such as Figure 3 As shown, the measuring instrument 55 includes a pressing block 553 disposed on the top of the weighing device 56. A counterweight 552 is fixedly installed on the top of the pressing block 553, and a carrier 551 is fixedly installed on the top of the counterweight 552. The carrier 551 has a grid-like structure, and the grid gaps allow the belt 54 to pass through, so that the bearing surface of the carrier 551 is flush with the conveying surfaces of the first conveying mechanism 2 and the second conveying mechanism 3. When the material is fed onto the carrier 551, the weight of the material is transmitted downward through the carrier 551. The carrier 551 transmits the force to the counterweight 552 below, and the counterweight 552 transmits the force to the pressing block 553. The pressing block 553 finally applies the force directly and vertically to the weighing device 56 below. When the belt 54 is running, its surface will be slightly higher than or flush with the bearing surface of the carrier 551. In this way, the belt can drag the material into the weighing area and move it smoothly onto the carrier 551. After weighing, the belt once again acts as the main power to pull the material off the carrier 551 and transport it to the next process.

[0023] In one embodiment, such as Figure 4 As shown, the feeding assembly 6 includes a mounting plate 61 fixedly installed on the side of the controller 4. A drive cylinder 62 is fixedly installed on the top of the mounting plate 61. A diversion flap 65 is hinged to the outlet side of the second conveying mechanism 3. The side of the second conveying mechanism 3 and the diversion flap 65 are connected by a connector 64. The feeding assembly 6 also includes an infrared sensor 63 for detecting the material position. The infrared sensor 63 is located on the side of the second conveying mechanism 3 and is electrically connected to the controller 4. When the weighed material continues to move forward on the second conveying mechanism 3 and reaches the outlet side, it will... Upon entering the detection area of ​​infrared sensor 63, after receiving the signal from infrared sensor 63, controller 4 immediately sends an action command to drive cylinder 62 according to preset logic. The action of cylinder is transmitted to diverting flap 65 through connector 64. When the product is qualified: flap retracts, making way for the material and allowing it to be conveyed in the original direction; when the product is unqualified: cylinder drives, conveying the material to the collection box 66 below. After the material is sorted, infrared sensor 63 detects that the material has left, and controller 4 controls drive cylinder 62 to reset, so that diverting flap 65 returns to the default position, waiting for the arrival of the next material.

[0024] In one embodiment, such as Figure 4As shown, a collection box 66 is provided on the frame 1 below the sorting path corresponding to the feeding component 6. The collection box 66 is provided with multiple sets of partitions. When unqualified materials are guided away from the main conveyor line by the diversion flap 65, they will fall into this collection box 66. The multiple sets of partitions provided inside the collection box 66 are used to receive different types of materials coming down from the same sorting path.

[0025] The above embodiment discloses a weighing instrument with automatic feeding function. The material to be weighed is automatically fed into the equipment by the first conveying mechanism 2 and transported to the weighing station. At this time, the conveying action is paused, and the material is completely stationary on the carrier 551. The controller 4 receives the weighing data and compares it with a preset standard, instantly determining whether the material is qualified or unqualified. The weighed material is then picked up by the second conveying mechanism 3 and transported towards the outlet. When the infrared sensor 63 detects qualified material arriving at the outlet, the controller 4 does not operate. The diversion flap 65 remains unchanged, and the material is output along the main path, entering the next process or the qualified product area. When the infrared sensor 63 detects unqualified material, the controller 4 immediately commands the drive cylinder 62 to operate. The cylinder pushes the diversion flap 65, changing the material path and causing it to fall into the designated collection box 66. The partitions inside the box help with the initial classification and management of unqualified products.

[0026] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A weighing instrument with automatic feeding function, comprising a frame (1), characterized in that, Along the material conveying direction, the frame (1) is provided with the following in sequence: The first conveying mechanism (2) is used to convey materials to be weighed. The weighing component (5) is located at the outlet end of the first conveying mechanism (2); The second conveying mechanism (3) has its inlet end adjacent to the weighing component (5) for receiving the weighed material; the unloading component (6) is located on the outlet side of the second conveying mechanism (3), and the controller (4). The weighing assembly (5) includes a base plate (51) fixedly installed in the frame (1), a vertical plate (52) vertically installed on the top of the base plate (51), a drive motor (53) installed on the side of the vertical plate (52), a transmission roller fixedly installed at the output end of the drive motor (53), a belt strip (54) installed on the surface of the transmission roller, two sets of the drive motor (53) and the conveying roller are installed on the vertical plate (52) and respectively set at both ends of the belt strip (54), a weighing device (56) is provided on the top of the base plate (51), and a measuring instrument (55) is fixedly installed on the top of the weighing device (56).

2. The weighing instrument with automatic feeding function according to claim 1, characterized in that, The measuring instrument (55) includes a pressing block (553) disposed on the top of the weighing device (56), a counterweight (552) fixedly installed on the top of the pressing block (553), and a carrier (551) fixedly installed on the top of the counterweight (552).

3. A weighing instrument with automatic feeding function according to claim 2, characterized in that, The carrier (551) has a grid structure, and the grid gaps allow the belt strip (54) to pass through, so that the bearing surface of the carrier (551) is flush with the conveying surfaces of the first conveying mechanism (2) and the second conveying mechanism (3).

4. A weighing instrument with automatic feeding function according to claim 1, characterized in that, Both the first conveying mechanism (2) and the second conveying mechanism (3) are motor-driven conveyor belts.

5. A weighing instrument with automatic feeding function according to claim 1, characterized in that, The feeding assembly (6) includes a mounting plate (61) fixedly installed on the side of the controller (4), a drive cylinder (62) fixedly installed on the top of the mounting plate (61), a diversion flap (65) hinged to the outlet side of the second conveying mechanism (3), and a connector (64) connecting the side of the second conveying mechanism (3) and the diversion flap (65).

6. A weighing instrument with automatic feeding function according to claim 5, characterized in that, The feeding assembly (6) also includes an infrared sensor (63) for detecting the position of the material. The infrared sensor (63) is located on the side of the second conveying mechanism (3) and is electrically connected to the controller (4).

7. A weighing instrument with automatic feeding function according to claim 1, characterized in that, A collection box (66) is provided on the frame (1) below the sorting path corresponding to the feeding component (6).

8. A weighing instrument with automatic feeding function according to claim 7, characterized in that, The collection box (66) is equipped with multiple sets of partitions.

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