Measuring Device and Method for Calibrating the Moving Precision of a Projector Workbench

Abstract

A measuring device and method for calibrating the moving accuracy of a projector workbench, characterized in that: the device includes a fixed base with a strip-shaped hole, a support column, a cantilever rod, a hoisting rod, a transfer block A, a transfer block B and a torsion spring comparator. The measurement method of the present invention is to detect the numerical change of the working surface of the verification straight ruler by the torsion spring comparator through moving the workbench, so as to realize the detection of the moving accuracy of the workbench, and solve the problems that the current tobacco digital projectors used in the industry cannot be calibrated and verified, cannot achieve unified and standardized value traceability, and it is difficult to effectively guarantee the accuracy and reliability of the measurement data of the tobacco digital projectors. The advantages of the present invention are: the device has a simple structure, is convenient to operate, is economical and practical, has good reliability, a wide detection range and high detection accuracy.

Description

Technical Field

[0001] The present invention relates to the technical field of the moving precision detection of a tobacco digital projector workbench, and particularly relates to a measuring device and a measuring method for calibrating the moving precision of a tobacco digital projector workbench. Background Art

[0002] Tobacco digital projectors are mainly used for the rapid detection of the width of cigarette tipping paper, cigarette paper, the length of cigarettes / filter rods, the width of hole lines, and the area of round holes punched by lasers in tipping paper. It is a special instrument for daily production inspection and quality monitoring in the tobacco industry. The precision of tobacco digital projectors directly determines the quality of cigarette-related auxiliary materials products. When in use, a tobacco test piece to be measured (such as cigarette tipping paper, cigarette paper, etc.) is placed on the horizontally movable workbench surface of the projector for detection. The flatness or stability of the moving workbench on the projector has a great influence on the measurement precision of the tobacco digital projector and is also the benchmark for ensuring the measurement precision. If its own precision is poor, it will affect the test results of the test object. Therefore, the moving precision (levelness) of the workbench of the tobacco digital projector is crucial. For tobacco digital projectors, there is currently no detection device for calibrating this instrument, and it is impossible to judge the accuracy and reliability of the measurement data of tobacco digital projectors and other performances.

[0003] Precisely because tobacco digital projectors are special instruments used for evaluating daily production inspection and quality monitoring in the tobacco industry, they have a direct interest relationship with cigarette production enterprises and consumers. Given that more and more manufacturers use tobacco digital projectors in the industry, standardized verification methods and reasonable verification devices are required to ensure the control of the production process and the consistency of inspections by quality supervision and inspection departments. Therefore, a fast and accurate detection instrument is needed to guide the periodic verification of such instruments. Summary of the Invention

[0004] The object of the present invention is precisely to propose a measuring device and a measuring method for calibrating the moving precision of a tobacco digital projector workbench based on the problems existing in the above-mentioned prior art. The implementation of the present invention can accurately detect the precision of the tobacco digital projector instrument, ensure the accuracy and reliability of the measurement data of the tobacco digital projector, and is of great significance for enhancing the metrological management and independent innovation level of special instruments in the tobacco industry.

[0005] The object of the present invention is achieved by the following technical solutions:

[0006] A measuring device for calibrating the moving precision of a tobacco digital projector workbench includes a fixed base provided with a strip-shaped hole, a support column, a cantilever rod, a suspension rod, a transfer block A, a transfer block B, and a torsion spring comparator;

[0007] The supporting upright column is arranged in the strip-shaped hole of the fixed base and its position is adjusted by fasteners. A horizontally arranged cantilever rod is connected to the supporting upright column through adapter block A. Adapter block A can move up and down and rotate relative to the supporting upright column and is positioned by fasteners. The cantilever rod can move horizontally and rotate relative to adapter block A and is positioned by fasteners. The purpose is to adjust the angle and vertical position between the torsion spring comparator and the measuring surface.

[0008] The other end of the cantilever rod is connected to the lifting rod through adapter block B. Adapter block B can be horizontally adjusted and rotated relative to the cantilever rod and is positioned by fasteners. The lifting rod can be vertically adjusted and rotated relative to adapter block B and is positioned by fasteners. The purpose of its position adjustment and rotation is also to adjust the contact position between the torsion spring comparator and the measuring surface.

[0009] The torsion spring comparator is horizontally arranged at the lower end of the lifting rod. The torsion spring comparator can rotate and move horizontally relative to the lifting rod and is positioned by fasteners to achieve the position adjustment and reading angle adjustment of the torsion spring comparator.

[0010] By adjusting the fasteners at each connection part of the present invention, the linear motion accuracy measurement of any point on the workbench of the tobacco digital projector can be achieved.

[0011] A measuring method for calibrating the moving accuracy of the workbench of the tobacco digital projector by using the measuring device of the present invention includes the following steps:

[0012] (1) First, place the verification straight ruler at the center position of the workbench of the tobacco digital projector. Secondly, install the torsion spring comparator on this measuring device, and then fix this device on the main body of the tobacco digital projector;

[0013] (2) Make the measuring head of the torsion spring comparator contact with the vertical or horizontal working surface of the verification straight ruler, make the working surface of the verification straight ruler parallel to the moving direction of the workbench, turn on the moving workbench to run a motion cycle, and read the maximum change amount of the indication value in this moving direction on the torsion spring comparator respectively as the measurement value in this direction;

[0014] (3) Through the moving workbench, the torsion spring comparator detects the numerical change amount of the working surface of the verification straight ruler, which is used as the measurement data of the moving accuracy of the workbench.

[0015] The advantages of the present invention are as follows: It provides a measuring device for calibrating the moving accuracy of the workbench of a tobacco digital projector, which can fix and adjust the position of a dial comparator. By moving the workbench and using the dial comparator to detect the numerical change of the working surface of a verification straightedge, the detection of the moving accuracy of the workbench is realized, solving the problems that the existing tobacco digital projectors in the industry cannot be calibrated and verified, and it is impossible to achieve unified and standardized value traceability, and the accuracy and reliability of the measurement data of the tobacco digital projector are difficult to be effectively guaranteed. This device has a simple structure, is easy to operate, is economical and practical, has good reliability, a wide detection range, and high detection accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is an axonometric view of the structure of the measuring device of the present invention;

[0017] Figure 2 is a schematic view when the measuring device of the present invention is installed on a tobacco digital projector for measurement;

[0018] Figure 3 is Figure 2 the top view (rotated 90° clockwise);

[0019] In the figure: 1. Fixed base, 2. Adapter block A, 3. Support column, 4. Cantilever rod, 5. Adapter block B, 6. Hoisting rod, 7. Dial comparator, 8. Fastener, 9. Verification straightedge, 10. Projector base, 11. Moving workbench, 12. Projector optical system. DETAILED DESCRIPTION OF THE INVENTION

[0020] The present invention will be further described below in conjunction with the accompanying drawings:

[0021] As Figure 1 shown: The measuring device of the present invention includes a fixed base 1 with a strip hole, a support column 3, a cantilever rod 4, a hoisting rod 6, an adapter block A 2, an adapter block B 5, and a dial comparator;

[0022] The support column 3 is arranged in the strip hole of the fixed base 1 and its position is adjusted by a fastener 8. The support column 3 is connected to the horizontally arranged cantilever rod 4 through the adapter block A 2. The adapter block A 2 can move up and down and rotate relative to the support column 3 and is positioned by a fastener 8. The cantilever rod 4 can move horizontally and rotate relative to the adapter block A 2 and is positioned by a fastener 8. The purpose is to adjust the angle and vertical position between the dial comparator 7 and the measurement surface;

[0023] The other end of the cantilever rod 4 is connected to the hoisting rod 6 through the adapter block B5. The adapter block B5 can be horizontally adjusted and rotated relative to the cantilever rod 4 and is positioned by the fastener 8. The hoisting rod 6 can be adjusted up and down and rotated relative to the adapter block B5 and is positioned by the fastener 8. The purpose of the position adjustment and rotation is also to adjust the contact position between the torsion spring comparator and the measuring surface.

[0024] The torsion spring comparator 7 is horizontally arranged at the lower end of the hoisting rod 6. The torsion spring comparator 7 can be rotated and horizontally moved relative to the hoisting rod 6 and is positioned by the fastener 8 to realize the position adjustment of the torsion spring comparator and the adjustment of the reading viewing angle.

[0025] By adjusting the fasteners (tightening screws) 8 at each connection part, the linear motion accuracy measurement of any point on the workbench of the tobacco digital projector can be realized in the present invention.

[0026] The measuring method for calibrating the moving accuracy of the workbench of the tobacco digital projector by using the measuring device of the present invention includes the following steps (see Figure 2 、 3 ):

[0027] (1): First, place the verification straightedge 9 at the center position of the workbench of the tobacco digital projector. Second, install the torsion spring comparator 7 on this measuring device. Then, fix this device on the base 10 of the tobacco digital projector.

[0028] (2) Make the measuring head of the torsion spring comparator contact with the vertical or horizontal working surface of the verification straightedge, make the working surface of the verification straightedge parallel to the moving direction of the moving workbench 11, turn on the moving workbench to run a motion cycle, and read the maximum change amount of the indication value in this moving direction on the torsion spring comparator respectively as the measurement value in this direction.

[0029] (3) Through the moving workbench 11 (see the arrow marking direction in Figure 3 ), the torsion spring comparator detects the numerical change amount of the working surface of the verification straightedge, which is used as the measurement data of the moving accuracy of the workbench.

Claims

1. A measuring device for calibrating the moving accuracy of a workbench of a tobacco digital projector, characterized in that: It includes a fixed base provided with strip-shaped holes, a support column, a cantilever rod, a hoisting rod, a transfer block A, a transfer block B and a torsion spring comparator; the support column is arranged in the strip-shaped holes of the fixed base and the position is adjusted by fasteners. The support column is connected to the horizontally arranged cantilever rod through the transfer block A, and the transfer block A can move up and down and rotate relative to the support column and is positioned by fasteners. The cantilever rod can move horizontally and rotate relative to the transfer block A and is positioned by fasteners; the other end of the cantilever rod is connected to the hoisting rod through the transfer block B, and the transfer block B can be horizontally adjusted and rotated relative to the cantilever rod and is positioned by fasteners. The hoisting rod can be adjusted up and down and rotated relative to the transfer block B and is positioned by fasteners. The torsion spring comparator is horizontally arranged at the lower end of the hoisting rod, and the torsion spring comparator can rotate and move horizontally relative to the hoisting rod and is positioned by fasteners; By adjusting the fasteners at each connection part, the linear motion accuracy measurement of any point on the workbench of the tobacco digital projector can be realized. By moving the workbench, the torsion spring comparator detects the numerical change amount of the working surface of the verification straightedge, which is used as the measurement data of the movement accuracy of the workbench.

2. The measuring device for calibrating the moving accuracy of the workbench of a tobacco digital projector according to claim 1, characterized in that: The fasteners are fastening bolts or fastening screws.

3. A determination method for calibrating the moving accuracy of the workbench of a tobacco digital projector using the measuring device according to claim 1, characterized in that, It includes the following steps: (1) First, place the verification straightedge at the center position of the workbench of the tobacco digital projector. Secondly, install the torsion spring comparator on this measuring device, and then fix this device on the base of the tobacco digital projector; (2) Make the measuring head of the torsion spring comparator contact with the vertical or horizontal working surface of the verification straightedge, make the working surface of the verification straightedge parallel to the moving direction of the workbench, turn on the moving workbench to run for a movement cycle, and read the maximum change amount of the indication value in this moving direction on the torsion spring comparator respectively as the measurement value in this direction; (3) By moving the workbench, the torsion spring comparator detects the numerical change amount of the working surface of the verification straightedge, which is used as the measurement data of the movement accuracy of the workbench.

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