Cigarette packaging paper surface friction coefficient detection system

Abstract

The utility model provides a cigarette packaging paper surface friction coefficient detection system, which comprises a detection table, a first negative pressure part, a second negative pressure part, a detection table, a first negative pressure part, a second negative pressure part and a second negative pressure part, and is characterized in that the detection table is provided with a horizontal top surface, and the top surface is provided with a plurality of exhaust inlets communicated with the first negative pressure part; a pressure sensor is also arranged in the detection table; the driving mechanism comprises a horizontal displacement driving part, a lifting driving part and a sample rod which are connected in sequence, a suction cup is connected to the side, close to the detection table, of the sample rod, and the suction cup communicates with the second negative pressure part; a mechanical sensor is also arranged on the sample rod; the horizontal displacement driving part drives the lifting driving part and the sample rod to move along the horizontal direction simultaneously, and the lifting driving part drives the sample rod to get close to or get away from the detection table. The utility model aims to simulate and restore the motion state of cigarette packaging paper during packaging and measure the friction coefficient between the upper and lower pieces of packaging paper at the moment, thereby solving the problem that the existing friction coefficient measuring instrument cannot detect the friction coefficient of a sample with a concave-convex process, a smaller box type and dense creases.

Description

TECHNICAL FIELD

[0001] The utility model relates to a cigarette wrapping paper surface friction coefficient detection system. BACKGROUND

[0002] The existing cigarette wrapping production line adopts a suction cup paper feeding device, and the paper feeding action of the device is similar to "dealing cards", that is, a topmost cigarette wrapping paper in a stack is "flown out" forward by the suction cup each time. If the friction between the upper and lower adjacent cigarette wrapping papers is too large, the lower cigarette wrapping paper will move forward together with the upper cigarette wrapping paper, affecting the smooth progress of the wrapping operation.

[0003] The existing general friction detection system usually takes two samples, cuts one sample into a square test sample (hereinafter referred to as test sample A) of a certain size, and fixes the other sample in the original size on a base plate (hereinafter referred to as test sample B) with the printed surface upward, and places test sample A with the printed surface downward on test sample B. A certain load block is applied to test sample A, and the pressure (the weight of the load block) provided by the load block is recorded as F A . A connecting rod with a mechanical sensor is used to pull the load block, and the initial force of the mechanical sensor is recorded as F0. Then, the mechanical sensor detects at every preset time interval, and the detection results are recorded as F1, F2,..., F n . After pulling a certain distance, the pulling is stopped, and the static and dynamic friction coefficients between the two test samples are calculated. The static friction coefficient is , and the dynamic friction coefficient is

[0004] The above detection system has the following problems:

[0005] 1) The convex and concave patterns on the surface of the cigarette wrapping paper and the reserved creases will greatly interfere with the measurement;

[0006] 2) The system measures the friction coefficient between the printed surfaces of two cigarette wrapping papers, and the friction coefficient has no actual effect, because the tester needs the adaptability parameter actually required in the cigarette wrapping production line, not the physical index irrelevant to production;

[0007] 3) The system is designed according to the friction coefficient of a film or the friction coefficient of paper, while the friction coefficient between the surfaces of printed matters will be higher, even exceeding the friction coefficient between the load block and the printed matters, so that the displacement between test sample A and the load block often occurs in the actual measurement process, and thus the measurement cannot be completed. INVENTION CONTENTS

[0008] The cigarette packaging paper surface friction coefficient detection system of the utility model aims at simulating the motion state of the cigarette packaging paper in packaging and measuring the friction coefficient between the upper and lower two packaging papers at the time, thereby solving the problem that the existing friction coefficient measuring instrument cannot detect the friction coefficient of the sample with the concave-convex process, the small box type and the dense creases.

[0009] The utility model provides a cigarette packaging paper surface friction coefficient detection system, include: detection stage, it has the horizontal top surface, a plurality of air suction mouth is set up on the top surface, the air suction mouth is linked with first negative pressure portion intercommunication, still be equipped with pressure sensor in the detection stage for detecting the pressure that the top surface suffers, drive mechanism, including horizontal displacement drive portion, lifting drive portion and sample rod that connect gradually, the sample rod is connected with sucking disc on one side close to the detection stage, the sucking disc is linked with second negative pressure portion intercommunication, still be equipped with mechanics sensor on the sample rod, the horizontal displacement drive portion drives lifting drive portion and sample rod moves along the horizontal direction simultaneously, lifting drive portion drives the sample rod is close to or far from the detection stage, timer for recording test time, control mechanism is connected with pressure sensor, mechanics sensor and timer respectively.

[0010] Preferably, a check valve is arranged in the air suction mouth.

[0011] Preferably, the air suction mouth is used for adsorbing a first sample placed on the top surface, and the sucking disc is used for adsorbing a second sample placed on the first sample.

[0012] Preferably, the top surface is rectangular, and one side of the first sample is flush with one side of the top surface.

[0013] Preferably, the first sample and the second sample are both cigarette packaging paper.

[0014] Preferably, the first negative pressure portion and the second negative pressure portion are both vacuum machines.

[0015] The utility model provides a cigarette packaging paper surface friction coefficient detection system, which aims at simulating the motion state of the cigarette packaging paper in packaging and measuring the friction coefficient between the upper and lower two packaging papers at the time, thereby solving the problem that the existing friction coefficient measuring instrument cannot detect the friction coefficient of the sample with the concave-convex process, the small box type and the dense creases.

[0016] The detection system of the utility model has the following advantages:

[0017] 1) The whole packaging paper can be tested without considering the influence of local printing process, and manual selection of different sample parts for testing is not needed, so that differences are caused.

[0018] 2) The pressure applied to the sample is adjustable, and a pressure value similar to that in actual production can be selected.

[0019] 3) It can measure the coefficient of friction between the back of the cigarette wrapping paper and the printed surface of the next wrapping paper;

[0020] 4) The sample is fixed and transported by a suction cup fixed on the sample rod, simulating the suction cup paper feeding device used in the cigarette packaging production line;

[0021] 5) The average coefficient of dynamic friction is the result after integration, which can eliminate the error caused by interval measurement;

[0022] 6) Drawing and displaying curves allows testers to have a clear understanding of the test results and makes it easy to check the degree of influence of different areas of the packaging paper. Attached Figure Description

[0023] Figure 1 This is a top view of the cigarette packaging paper surface friction coefficient detection system of this utility model;

[0024] Figure 2 This is a schematic diagram showing the relative positions of the first and second samples before testing.

[0025] Figure 3 This is a schematic diagram showing the relative positions of the first and second samples when the test is completed.

[0026] Component designation explanation:

[0027] 1. Testing station

[0028] 21 First Sample

[0029] 22 Second Sample

[0030] 3. Drive mechanism

[0031] 4. Sample rod

[0032] 41 Suction Cups Detailed Implementation

[0033] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. These embodiments are only used to illustrate this utility model and are not intended to limit it.

[0034] In the description of this utility model, it should be noted that the terms "upper," "lower," "front," "rear," "left," "right," "horizontal," "top," and "bottom," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used 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. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0035] In the description of the utility model, it needs to explain, unless another explicit provision and limitation, the term "installation", "link", "connection" should do the broad sense understanding, for example, can be fixed connection, also can be detachable connection, or integrally connected, can be mechanical connection, also can be electrical connection, can be directly connected, also can be indirectly connected through the intermediate medium, can be two element internal communication. For ordinary skilled in the art, the above-mentioned term can be understood according to the specific meaning in the utility model.

[0036] Figure 1 As shown in the utility model cigarette packaging paper surface friction coefficient detection system's plan view, in the following description, with the drawings in Figure 1 As direction reference basis, in Figure 1 The vertical view paper surface outward is upper direction, the vertical view paper surface inward is lower direction, along the view paper surface upward is front direction, along the view paper surface downward is rear direction, along the view paper surface right is right direction, along the view paper surface left is left direction.

[0037] As shown in Figure 1 And Figure 2 The utility model provides a kind of cigarette packaging paper surface friction coefficient detection system, the detection system includes detection table 1, drive mechanism 3, timer and control mechanism.

[0038] Detection table 1 has horizontal top surface, several suction ports are opened on top surface, and suction port is connected with first negative pressure part.The top surface is preferably rectangular.Detection table 1 is also provided with pressure sensor, and pressure sensor is used to detect the pressure suffered by top surface.

[0039] Drive mechanism 3 includes horizontal displacement driving part, lifting driving part and sample rod 4 connected in sequence, and suction cup 41 is connected on the side (i.e. lower side) of sample rod 4 close to detection table 1, and suction cup 41 is connected with second negative pressure part.Sample rod 4 is also provided with mechanical sensor, and mechanical sensor is used to measure the pulling force of horizontal displacement driving part to sample rod 4.Horizontal displacement driving part drives lifting driving part and sample rod 4 to move along horizontal direction (i.e. front and rear direction) simultaneously, and lifting driving part drives sample rod 4 to move along up and down direction, so that sample rod 4 is close to or away from detection table 1;when lifting driving part makes sample rod 4 close to detection table 1, it can exert a preset pressure on the sample adsorbed by suction cup 41.

[0040] Timer is used to record test time.

[0041] Control mechanism is connected with pressure sensor, mechanical sensor and timer respectively, which can obtain the measurement results of pressure sensor, mechanical sensor and timer, and calculate, analyze and record the measurement results.

[0042] In one specific embodiment of this utility model, both the first negative pressure part and the second negative pressure part are vacuum machines; the horizontal displacement drive part and the lifting drive part can be one or more of the following: lead screw, linear motor, hydraulic cylinder or pneumatic cylinder.

[0043] The working principle of this utility model is as follows:

[0044] Prepare a first sample 21 and a second sample 22. Specifically, the first sample 21 and the second sample 22 are cigarette packaging papers with the same shape, size and type.

[0045] The first sample 21 is placed on the top surface of the testing stage 1 with the printed side facing upwards, and the front edge of the first sample 21 is flush with the front edge of the top surface. The first negative pressure unit operates, forming a negative pressure at the air intake, and the first sample 21 is firmly adsorbed onto the testing stage 1.

[0046] The second sample 22 is placed above the first sample 21, with the two overlapping each other. The second negative pressure unit operates, generating negative pressure at the suction cup 41, which then adsorbs the second sample 22. Next, the lifting drive unit drives the sample rod 4 and the suction cup 41 to move downward, applying a preset pressure to the second sample 22 to simulate the pressure experienced by cigarette packaging paper during actual packaging production.

[0047] The test begins, and the horizontal displacement drive unit moves the sample rod 4 forward, causing the suction cup 41 to slide the second sample 22 forward under a preset pressure. During this process, the pressure value F measured by the pressure sensor is recorded. A The tensile force F measured by the mechanical sensor is recorded as F0. The timer starts counting when the sample rod 4 begins to move.

[0048] like Figure 3 As shown, when the second sample 22 is completely separated from the first sample 21, the pressure value measured by the pressure sensor suddenly decreases to near 0. At this point, the test ends, the second negative pressure section stops working, the suction cup 41 stops adsorbing the second sample 22, and the timer stops counting. The test time recorded by the timer is t.

[0049] The control mechanism reads data from the pressure sensor, force sensor, and timer, and records, calculates, and plots curves.

[0050] Calculate the maximum static friction coefficient

[0051] Calculate the average coefficient of kinetic friction

[0052] Furthermore, to prevent air leakage caused by the first sample 21 being too small to completely cover all the air inlets, a check valve is also provided in each air inlet.

[0053] The above merely describes preferred embodiments of the present application, and it should be noted that, for those skilled in the art, without departing from the technical principles of the present application, a number of improvements and replacements can be made, and these improvements and replacements should also be considered as the protection scope of the present application.

Claims

1. A system for detecting the coefficient of friction of the surface of a cigarette wrapper, characterized by, The utility model relates to a test device for testing the mechanical properties of cigarette packaging paper, comprising: a detection table having a horizontal top surface, a plurality of suction ports being formed in the top surface and being connected to a first negative pressure unit; a pressure sensor being further arranged in the detection table for detecting the pressure on the top surface; a driving mechanism comprising a horizontal displacement driving unit, a lifting driving unit and a sample rod connected in sequence, a suction disc being connected to one side of the sample rod close to the detection table and being connected to a second negative pressure unit; a mechanical sensor being further arranged on the sample rod; the horizontal displacement driving unit drives the lifting driving unit and the sample rod to move simultaneously in the horizontal direction, and the lifting driving unit drives the sample rod to move close to or away from the detection table; a timer for recording the test time; a control mechanism connected to the pressure sensor, the mechanical sensor and the timer respectively.

2. The cigarette wrapper surface friction coefficient detection system according to claim 1, wherein A check valve is arranged in the suction port.

3. The cigarette wrapper surface friction coefficient detection system according to claim 1, wherein The suction port is used for adsorbing a first sample placed on the top surface, and the suction disc is used for adsorbing a second sample placed on the first sample.

4. The cigarette wrapper surface friction coefficient detection system according to claim 3, wherein The top surface is rectangular, and one side of the first sample is flush with one side of the top surface.

5. The cigarette wrapper surface friction coefficient detection system according to claim 3, wherein The first sample and the second sample are both cigarette packaging paper.

6. The cigarette wrapper surface coefficient of friction detection system of claim 1, wherein, The first negative pressure unit and the second negative pressure unit are both vacuum machines.

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