Device for measuring friction coefficients of different areas of cigarette label paper

Abstract

The utility model belongs to the field of packaging materials of cigarette products, and particularly relates to a device for measuring friction coefficients of different areas of cigarette label paper, which comprises a base, a table board, a table board driving machine, a sliding block, a force measuring sensor and a sliding block lifting device, the base is fixedly connected with a support, the bottom surface of the table board is contacted with the top surface of the base, and the table board driving machine is connected with the table board. After the table top driving machine is started, the table top rotates axially along the rolling shafts on the two sides, the sliding block is movably arranged on the table top, the bottom of the force measuring sensor is fixed to the support, the force measuring sensor is connected with the sliding block through the sliding block connecting device, and the sliding block lifting device is used for enabling the sliding block to ascend and descend relative to the table top. According to the technical scheme, the device for measuring the friction coefficients of the different areas of the label paper can comprehensively know the friction coefficients of the different areas of the label paper, industrial enterprises can make corresponding quality requirements conveniently, the on-machine adaptability of the device can be improved, material consumption can be reduced, and the packaging forming quality of cigarette products can be improved.

Description

Technical Field

[0001] The utility model belongs to the field of cigarette product packaging materials, and particularly relates to a device for measuring friction coefficients of different areas of cigarette trademark paper. Background Art

[0002] The size of the friction coefficient of cigarette trademark paper directly affects its adaptability to the machine. After printing, trademark paper printing companies need to measure the friction coefficient. At present, with the demand for high-quality development of cigarette industry enterprises, higher requirements have been put forward for the friction coefficient of trademark paper. However, at present, the determination of the friction coefficient of trademark paper generally adopts the method in IS015359:1999, MOD. Because the printing processes of different areas of trademark paper are different, their friction coefficients are different. The measurement using this method has a certain one-sidedness, and smaller areas cannot be detected. In order to fully understand the friction coefficients of different areas of trademark paper, so that industrial enterprises can make corresponding quality requirements for them, in order to improve their adaptability to the machine, reduce material consumption, and improve the packaging and molding quality of cigarette products, the utility model provides a device for measuring the friction coefficients of different areas of cigarette trademark paper. Utility Model Content

[0003] The purpose of the utility model is to provide a device for measuring the friction coefficient of different areas of cigarette brand paper, so as to solve the problems existing in the above-mentioned background technology.

[0004] To achieve the above objectives, this application is implemented through the following technical solutions:

[0005] A device for measuring friction coefficients of different areas of cigarette label paper, comprising:

[0006] A base, the base being fixedly connected to the bracket;

[0007] a table top, the bottom surface of which contacts the top surface of the base and is capable of sliding relative to the base;

[0008] A table top drive mechanism is mounted on the base and connected to the table top, and is used to apply a horizontal force to the table top. When the table top drive mechanism is activated, the table top rotates axially along the rolling axes on both sides.

[0009] A slider, the slider being movably arranged on the table;

[0010] A force sensor, the bottom of which is fixed to the bracket, and the force sensor is connected to the slider via a slider connecting device, which is used to transmit the force between the slider and the sensor;

[0011] The slider lifting device is used to make the slider rise and fall relative to the table, and when the slider contacts the table and is placed on the table, the operation of the lifting device ensures that the slider does not slide relative to the table.

[0012] Furthermore, the base and the table are both made of materials with a smooth surface, which are incompressible and not easy to wear.

[0013] Furthermore, a slider guide rail is provided on the table surface for keeping the slider sliding on the table surface in a direction parallel to the table surface.

[0014] Furthermore, the bottom surface of the slider is flat and made of incompressible material.

[0015] Furthermore, there are multiple types of sliders, which are selected according to the size of the sample test area.

[0016] Furthermore, it also includes a data collector and a computer, wherein the data collector is electrically connected to the force sensor, and the data collector is electrically connected to the computer.

[0017] The beneficial effects of the utility model are:

[0018] The device for measuring the friction coefficient of different areas of cigarette trademark paper of this technical solution can fully understand the friction coefficient of different areas of trademark paper, facilitate industrial enterprises to make corresponding quality requirements for it, improve its adaptability to machines, reduce material consumption, and improve the packaging and molding quality of cigarette products. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the structure of a device for measuring friction coefficients in different areas of cigarette label paper according to the present invention.

[0020] Description of reference numerals:

[0021] 1. Base; 2. Table; 3. Table drive mechanism; 4. Slider; 5. Slider lifting device; 6. Sample to be tested; 7. Force sensor; 8. Slider connecting device. DETAILED DESCRIPTION

[0022] The technical solution of the present invention is described in detail below with reference to the accompanying drawings. The following embodiments are merely exemplary and can only be used to explain and illustrate the technical solution of the present invention, and cannot be interpreted as limiting the technical solution of the present invention.

[0023] like Figure 1 As shown, the present application provides a device for measuring the friction coefficient of different areas of cigarette brand paper, which includes:

[0024] The base 1 is fixedly connected to the bracket. The base of the present application is made of a material with a flat surface, which is incompressible and not easy to wear. There is no clear limitation on the specific material. All materials that can achieve a flat surface, are incompressible under normal pressure, and are not easy to wear can be used.

[0025] Table 2: The bottom surface of the table of the present application contacts the top surface of the base and can slide relative to the base. The upper surface of the table of the present application is made of a flat, incompressible and non-wearable material. The width of the table is sufficient to ensure that the distance between the slider and its edge is not less than 5 mm.

[0026] The table top drive mechanism 3 is installed on the base and connected to the table top. It is used to apply a horizontal force to the table top, and the magnitude of the force can be gradually increased. After the table top drive mechanism is started, the table top rotates axially along the rolling shafts on both sides. The table top drive mechanism of the present application can be a cylinder or a motor. The cylinder or the motor are both installed on the base. In actual use, the cylinder or the motor can also be installed on the bracket. If it is a cylinder, the piston rod of the cylinder is connected to the two rolling shafts at the same time through a connecting rod, and the two rolling shafts are respectively connected to the two sides of the table top for rotation. Similarly, if it is a motor, the output shaft of the motor is connected to the two rolling shafts at the same time through a connecting rod, and the two rolling shafts are respectively connected to the two sides of the table top for rotation. Regardless of whether a cylinder, motor or other power machinery is used, the change of the applied force can be controlled to complete the detection.

[0027] Slider 4, slider 4 is movably arranged on table 2. In this application, the number of sliders 4 is multiple, which generally refers to the different widths of the sliders, so that the appropriate slider is selected according to the size of the sample test area. The bottom surface of the slider is used to connect with the sample to be tested 6, that is, the sample area to be tested. The number of sliders in this application is multiple, that is, it is equipped with multiple sliders to ensure that the contact area between the test sample and the slider meets the requirements and the slider mass can be accurately measured. During the test, sliding between the sample to be tested and the slider should be prevented.

[0028] In an embodiment of the present application, a slider guide rail (not shown in the figure) is provided on the table surface, and its main function is to keep the slider sliding in a direction parallel to the table surface. The slider guide rail does not restrict the slider from being lifted off the table surface by the slider lifting device or placing the slider on the table surface. It only limits the sliding range of the slider on both sides of the slider to avoid the slider from slipping. In other embodiments, the slider guide rail may not be used.

[0029] The slider lifting device 5 is used to lift and lower the slider relative to the platform, and when the slider is in contact with the platform and placed on the platform, the operation of the lifting device ensures that the slider does not slide on the platform. The slider lifting device of the present application can be any device that can lift the slider and then lower the slider onto the platform after placing the sample to be tested on the bottom surface of the slider, such as a conventional lifting device, a lifting device, etc. The technical solution of the present application can be realized, and detailed description is not given here.

[0030] The force sensor 7 is fixed to the bracket at the bottom, and the force sensor 7 is connected to the slider 4 through the slider connecting device 8. The slider connecting device 8 is used to transmit the force between the slider and the sensor, and can apply the force parallel to the platform to the center of the test area.

[0031] In the present application, the data collector and the computer are also connected to each other through communication; the data collector is in communication connection with the force sensor, and the data collector is used to collect the data of the force sensor. The computer is used to display the change curve between the friction force and the displacement of the platform; wherein the friction force is the friction force between the test sample and the platform, and the change curve is used to obtain the friction coefficient between the test sample and the platform.

[0032] Start the platform driving mechanism, the platform starts to move, gradually increase the driving force of the platform, the platform starts to slide, and gradually moves at a constant speed in a straight line relative to the slider in the horizontal direction. In this process, the force sensor can capture the change of force instantaneously, and display the change curve between the friction force and the displacement of the platform or the time through the data collector and the computer. The data transmission and display of this process, the control of gradually increasing the driving force of the platform are all conventional control methods, therefore, the control method is not described here, and it will not affect the implementation of the device.

[0033] The specific working method is:

[0034] According to the size of the test area of the trademark paper, select a suitable slider, and according to the shape and area of the bottom surface of the slider, cut out a test sample with the same shape and area in the test area. In this embodiment, the bottom surface of the slider is a square.

[0035] Fix the above cut test sample on the slider, and the test surface of the test sample faces downward. Slowly put the slider onto the platform using the slider lifting device, and ensure that the distance between the slider and the edge of the platform is not less than 5mm. Once the sample is in contact with the platform, the slider should not be moved or slightly adjusted.

[0036] Start the table drive mechanism and apply a horizontal force to the table, gradually increasing it. When the table and the sample to be tested generate relative motion, the force displayed on the test sensor is the static friction between the sample to be tested and the table. Then, measure the total gravity of the sample to be tested and the slider in a conventional way in advance, and use the formula μ s =F S / mg can be used to calculate the static friction coefficient between the test sample and the table. s is the static friction coefficient; F S is the friction force required for the test sample to start sliding, in Newtons (N); m is the total mass of the slider and the test sample, in kilograms (kg); g is the acceleration due to gravity, 9.79 m / s 2 .

[0037] When the sample to be tested and the slider generate relative motion and move at a constant speed, the force displayed on the test sensor is the dynamic friction between the sample to be tested and the table. Then, the total gravity of the sample to be tested and the slider is measured in advance according to the conventional method. According to the formula μ k =F k / mg can be used to calculate the coefficient of kinetic friction between the sample to be tested and the table. k is the static friction coefficient; F k is the friction force required during the sliding of the sample to be tested, in Newton (N); m is the total mass of the slider and the sample to be tested, in kilograms (kg); g is the acceleration due to gravity, 9.79 m / s 2 .

[0038] In this embodiment, the top surface of the base is in contact with the tabletop, providing good support for the tabletop. This ensures greater stability during movement, and the contact area ensures uniform motion when measuring the coefficient of kinetic friction. Repeat the above steps to measure other areas of the label paper to obtain their static and kinetic coefficients of friction.

[0039] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents, and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A device for measuring the friction coefficient of different areas of cigarette label paper, characterized in that: include: A base, the base being fixedly connected to the bracket; a table top, the bottom surface of which contacts the top surface of the base and is capable of sliding relative to the base; A table top drive mechanism is mounted on the base and connected to the table top, and is used to apply a horizontal force to the table top. When the table top drive mechanism is activated, the table top rotates axially along the rolling axes on both sides. A slider, the slider being movably arranged on the table; A force sensor, the bottom of which is fixed to the bracket, and the force sensor is connected to the slider via a slider connecting device, which is used to transmit the force between the slider and the sensor; The slider lifting device is used to make the slider rise and fall relative to the table, and when the slider contacts the table and is placed on the table, the operation of the lifting device ensures that the slider does not slide relative to the table.

2. The device for measuring friction coefficient of different areas of cigarette brand paper according to claim 1, characterized in that: The base and the table are both made of materials with smooth surfaces, which are incompressible and not easy to wear.

3. The device for measuring friction coefficient of different areas of cigarette brand paper according to claim 1, characterized in that: A slider guide rail is provided on the table surface for keeping the slider sliding on the table surface in a direction parallel to the table surface.

4. The device for measuring friction coefficient of different areas of cigarette label paper according to claim 1, characterized in that: The bottom surface of the slider is flat and made of incompressible material.

5. The device for measuring friction coefficient of different areas of cigarette brand paper according to claim 1, characterized in that: There are many types of sliders, which are selected according to the size of the sample test area.

6. The device for measuring friction coefficient of different areas of cigarette label paper according to claim 1, characterized in that: It also includes a data collector and a computer. The data collector is connected to the force sensor by electrical signals, and the data collector is connected to the computer by electrical signals.

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