Electronic scale verification and calibration device

Abstract

The utility model provides an electronic scale verification and calibration device, which comprises an operation table, a placement table arranged at the top of the operation table, a horizontal adjustment mechanism arranged at the bottom of the placement table, a support frame arranged at the top of the operation table, a pressurization mechanism arranged on the support frame, and the horizontal adjustment mechanism used for adjusting the placement table to be horizontal. The horizontal adjusting mechanism comprises a first lifting cylinder body arranged in the operation table, a connecting plate is hinged to an ejector rod of the first lifting cylinder body, one side of the connecting plate is connected with the placement table, and a first gradienter and a second gradienter are arranged at the top and the bottom of the placement table correspondingly; and a second lifting cylinder is hinged to one side of the placement table. According to the electronic scale verification and calibration device provided by the utility model, the horizontal position of the placement table can be conveniently adjusted, and the situation that the actual pressure of the electronic push rod and the value displayed by the electronic scale have deviation due to the fact that the electronic scale is inclined and not horizontal enough is reduced as much as possible.

Description

Technical Field

[0001] This utility model relates to the field of electronic scale calibration, and in particular to an electronic scale calibration device. Background Technology

[0002] Electronic scales are electronic weighing devices that integrate modern sensor technology, electronic technology, and computer technology to meet and solve the "fast, accurate, continuous, and automatic" weighing requirements in real life, while effectively eliminating human error and making them more in line with the application requirements of legal metrology management and industrial production process control.

[0003] Utility model document CN208953116U discloses an electronic scale calibration device, which includes multiple bases, each with a column vertically fixed at its upper end. The device is characterized by: the upper ends of the multiple columns being fixedly connected by a mounting bracket; an electro-hydraulic actuator being vertically fixedly mounted at the center of the mounting bracket; a pressure sensor being fixedly mounted on the actuator head at the lower end of the electro-hydraulic actuator; a calibration plate being fixedly mounted at the lower end of the pressure sensor; a worktable being horizontally positioned below the calibration plate; a processor electrically connected to the pressure sensor and a display screen electrically connected to the processor being mounted on the mounting bracket; a sliding groove parallel to the height direction of the column being formed on the outer surface of the multiple columns near the pressure sensor; a slider being slidably mounted in the groove; the slider being fixedly connected to the side wall of the worktable; a push rod motor being vertically fixedly mounted on the lower surface of the worktable; and a control switch for controlling the movement of the electro-hydraulic actuator and the push rod motor being provided on the outer wall of the column.

[0004] The electronic scale is calibrated by placing it on a workbench and applying pressure through an electric actuator. The pressure value transmitted from the pressure sensor to the display screen is compared with the pressure value displayed on the scale. However, during use, the base may not be placed level, causing the scale to tilt. Testing on an uneven surface can easily lead to inaccurate test results.

[0005] Therefore, it is necessary to provide an electronic scale calibration device that is easy to adjust the level to solve the above-mentioned technical problems. Utility Model Content

[0006] To solve the above-mentioned technical problems, this utility model provides an electronic scale verification and calibration device.

[0007] The electronic scale calibration device provided by this utility model includes an operating table, a placement platform on the top of the operating table, a leveling mechanism at the bottom of the placement platform, a support frame on the top of the operating table, and a pressurizing mechanism on the support frame. The leveling mechanism is used to adjust the level of the placement platform, and the pressurizing mechanism is used to pressurize the placement platform.

[0008] In order to achieve the effect of adjusting the placement platform to a relatively horizontal position, this utility model provides an electronic scale calibration device. Preferably, the horizontal adjustment mechanism includes a first lifting cylinder body disposed inside the operating platform. The top rod of the first lifting cylinder is hinged to a connecting plate. One side of the connecting plate is connected to the placement platform. The top and bottom of the placement platform are respectively provided with a first level and a second level. One side of the placement platform is hinged to a second lifting cylinder.

[0009] To facilitate adjustment of the mounting plate angle, this utility model provides an electronic scale calibration device. Preferably, the pressurizing mechanism includes an electric push rod mounted on the top of a support frame. The top rod of the electric push rod is connected to a connecting frame, and a servo motor is mounted on the connecting frame. The output shaft of the servo motor is connected to a mounting plate, and multiple pressure sensors are provided on the mounting plate.

[0010] To facilitate the adjustment of the support frame, this utility model provides an electronic scale calibration device. Preferably, a reciprocating screw is screwed to the bottom of the support frame, one end of which is connected to a motor, and the motor is installed inside the operating table.

[0011] Compared with the prior art, the beneficial effects of the present invention are:

[0012] Horizontal adjustment mechanism: used to adjust the horizontal position of the platform to minimize the possibility of the electronic scale being tilted or not level enough, which could cause a deviation between the actual pressure of the electronic push rod and the value displayed on the electronic scale. Attached Figure Description

[0013] Figure 1 A schematic diagram of a preferred embodiment of the electronic scale calibration and verification device provided by this utility model;

[0014] Figure 2 for Figure 1 The diagram shows the structure of the operating console.

[0015] Figure 3 for Figure 1 The diagram shows the structure of the placement platform and the horizontal adjustment mechanism.

[0016] The following are the labels in the diagram: 1. Control panel; 2. Placement platform; 3. Horizontal adjustment mechanism; 31. First lifting cylinder; 32. Connecting plate; 33. First level; 34. Second level; 35. Second lifting cylinder; 4. Support frame; 5. Pressurization mechanism; 51. Electric push rod; 52. Connecting frame; 53. Servo motor; 54. Mounting plate; 6. Reciprocating lead screw. Detailed Implementation

[0017] The present invention will be further described below with reference to the accompanying drawings and implementation examples.

[0018] Please refer to Figure 1 , Figure 2 and Figure 3 ,in Figure 1 A schematic diagram of a preferred embodiment of the electronic scale calibration and verification device provided by this utility model; Figure 2 for Figure 1 The diagram shows the structure of the operating console. Figure 3 for Figure 1 The diagram shows the structure of the placement platform and the leveling mechanism. The electronic scale calibration device includes an operating platform 1, a placement platform 2 on the top of the operating platform 1, a leveling mechanism 3 at the bottom of the placement platform 2, a support frame 4 on the top of the operating platform 1, and a pressurizing mechanism 5 on the support frame 4. The leveling mechanism 3 is used to adjust the level of the placement platform 2, and the pressurizing mechanism 5 is used to pressurize the placement platform 2.

[0019] In the specific implementation process, such as Figure 1 , Figure 2 and Figure 3 As shown, the leveling mechanism 3 includes a first lifting cylinder 31 disposed inside the operating table 1. The top rod of the first lifting cylinder 31 is hinged to a connecting plate 32. One side of the connecting plate 32 is connected to the placement table 2. The top and bottom of the placement table 2 are respectively provided with a first level 33 and a second level 34. One side of the placement table 2 is hinged to a second lifting cylinder 35.

[0020] It should be noted that: a display screen and control buttons are respectively provided on one side of the operating table 1. The control buttons are used to control the first lifting cylinder 31, the second lifting cylinder 35 and the electric push rod 51 respectively. The display screen is used to display the pressure applied by the electric push rod 51 and the pressure sensor. The top of the placement platform 2 is provided with protrusions around its perimeter to prevent the electronic scale from sliding off the placement platform 2 when it is placed on the placement platform 2 for leveling. The top of the operating table 1 has a groove. The first lifting cylinder 31 is fixedly connected to the bottom of the groove of the operating table 1 by screws. One side of the connecting plate 32 is rotatably connected to one side of the placement platform 2. The first level 33 and the second level 34 are both embedded inside the placement platform 2.

[0021] refer to Figure 1 , Figure 2and Figure 3 As shown, the pressurizing mechanism 5 includes an electric push rod 51 mounted on the top of the support frame 4. The top rod of the electric push rod 51 is connected to a connecting frame 52. A servo motor 53 is mounted on the connecting frame 52. The output shaft of the servo motor 53 is connected to a mounting plate 54. Multiple pressure sensors are provided on the mounting plate 54.

[0022] It should be noted that: the support frame 4 is fixed to the electric push rod 51 by screws, the push rod of the electric push rod 51 is fixed to the connecting frame 52 by screws, the servo motor 53 is clamped inside the connecting frame 52 and fixedly connected by screws, the output shaft of the servo motor 53 is connected to the mounting plate 54 by an interference key, and the inside of the mounting plate 54 is fixed to the pressure sensor by screws.

[0023] refer to Figure 1 , Figure 2 and Figure 3 As shown, a reciprocating screw 6 is screwed to the bottom of the support frame 4. One end of the reciprocating screw 6 is connected to a motor, and the motor is installed inside the operating table 1.

[0024] It should be noted that the motor is fixed inside the operating table 1 by screws, and the output shaft of the motor is connected to one end of the reciprocating screw 6 by an interference key. One end of the reciprocating screw 6 is rotatably connected to the inner wall of the operating table 1. The bottom of both sides of the support frame 4 is provided with the reciprocating screw 6 and the guide rod, respectively. The guide rod is used to cooperate with the reciprocating screw 6 to drive the support frame 4 to move.

[0025] The working principle of the electronic scale verification and calibration device provided by this utility model is as follows:

[0026] In use, the electronic scale is placed on the platform 2. The first lifting cylinders 31 on both sides are controlled by the buttons on one side of the control panel 1 to make the first level 33 inside the platform 2 reach a relatively horizontal position. When the platform 2 is tilted forward or backward, the second level 34 on the platform 2 can be made to reach a horizontal position by the second lifting cylinder 35. Then, the angle of the mounting plate 54 is adjusted by controlling the servo motor 53 so that the pressure sensor is perpendicular to the platform 2. Then, the connecting frame 52 is moved downward by the electric push rod 51. The connecting frame 52 drives the servo motor 53 and the mounting plate 54 to move respectively. The mounting plate 54 causes the pressure sensor to contact the electronic scale placed on the platform 2, thereby completing the pressure test. The display screen on one side of the control panel 1 can display the pressure applied by the electric push rod 51.

[0027] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the description and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A calibration and verification device for electronic scales, characterized in that, The device includes an operating table (1), a placement platform (2) is provided on the top of the operating table (1), a horizontal adjustment mechanism (3) is provided at the bottom of the placement platform (2), a support frame (4) is provided on the top of the operating table (1), and a pressure mechanism (5) is provided on the support frame (4). The horizontal adjustment mechanism (3) is used to adjust the level of the placement platform (2), and the pressure mechanism (5) is used to pressurize the placement platform (2).

2. The electronic scale calibration and verification device according to claim 1, characterized in that, The leveling mechanism (3) includes a first lifting cylinder (31) disposed inside the operating table (1). The top rod of the first lifting cylinder (31) is hinged to a connecting plate (32). One side of the connecting plate (32) is connected to the placement table (2). The top and bottom of the placement table (2) are respectively provided with a first level (33) and a second level (34). One side of the placement table (2) is hinged to a second lifting cylinder (35).

3. The electronic scale calibration and verification device according to claim 1, characterized in that, The pressurizing mechanism (5) includes an electric push rod (51) installed on the top of the support frame (4). The top rod of the electric push rod (51) is connected to a connecting frame (52). A servo motor (53) is installed on the connecting frame (52). The output shaft of the servo motor (53) is connected to a mounting plate (54). Multiple pressure sensors are provided on the mounting plate (54).

4. The electronic scale calibration and verification device according to claim 1, characterized in that, The bottom of the support frame (4) is screwed with a reciprocating screw (6), one end of which is connected to a motor, and the motor is installed inside the operating table (1).

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