JP3177347U - Paper quality judgment device - Google Patents

Abstract

An object of the present invention is to apply a constant pressing force to a test piece placed on a pressure-sensitive sensor unit, and to measure the pressure distribution measurement data on the paper surface and the paper pressure distribution standard data of a regular paper quality standard piece registered in advance. Provided is a paper quality material judgment device for judging that the quality is regular paper quality.
A paper surface roughness information detecting means for measuring a paper surface roughness by arranging a plurality of piezoelectric thin film elements in a matrix and converting a pressure applied to each piezoelectric thin film element into an electric signal, or A configuration is made up of a sensing unit that detects the roughness of the paper surface from the strength of the pressure when the paper surface is pressed, and a detection circuit that takes out the difference in pressure due to the unevenness of the paper surface as a potential difference.
[Selection] Figure 1

Description

  The present invention relates to an apparatus for determining a paper quality material, and in particular, applies a constant pressing force to a test piece placed on a pressure-sensitive sensor unit, so that pressure distribution measurement data on a paper surface and a regular paper quality standard piece registered in advance are applied. The present invention relates to a paper quality material determination apparatus that compares the standard paper pressure distribution data with each other to determine the normal paper quality.

Conventionally, printing paper for copying machines and facsimile machines has been widely used as a paper-based material, and it is required to provide an appropriate paper-based material corresponding to each printing method.
For this reason, a method for measuring the surface roughness of paper has been developed, and a printing paper surface roughness measuring device has been developed in order to identify regular printing paper used in copying machines and facsimile machines.
Further, it is required not only to specify regular printing paper for copying machines and facsimile machines, but also to measure the surface roughness of all other printing paper.

  JP-A-6-294737   JP 2008-39540 A

  Japanese Patent Application Laid-Open No. 6-294637 discloses a method for measuring the surface roughness of a paper or sheet-like substance, irradiating the surface of the object with light, and measuring the radiance at each reflection angle of the scattered light. Then, the evaluation amount of the surface roughness is obtained by applying the result to the scattered light radiance distribution.

  In this measurement method, a signal obtained by receiving reflected light with a CCD element is averaged by 100 × 100 pixels to obtain one data, and an average value obtained by measuring eight points for the same sample at each measurement point is used as a measurement value. It was a thing.

  Japanese Patent Application Laid-Open No. 2008-39540 described above uses a tactile sensor having a tuning fork type crystal resonator, and evaluates the surface roughness of the paper from the difference in impedance values before and after the crystal resonator contacts the paper. It was something to do.

  However, none of them evaluates the surface roughness based on the pressure distribution measurement data on the paper surface, and the pressure distribution measurement data on the paper surface in the pressure sensor and the paper surface pressure distribution standard data of the regular paper quality standard pieces registered in advance. There is a need for a paper quality material determination device that can accurately determine whether the quality is regular paper quality.

  In addition, it is necessary to obtain pressure distribution measurement data by sticking a flexible sheet for surface pressure transmission capable of accurately transmitting the surface roughness of the paper material to the pressure-sensitive sensor unit.

  Therefore, the present inventor attaches the surface pressure transmitting flexible sheet to the sensor unit, accurately transmits the surface roughness of the paper material, and the pressure distribution measurement data on the paper surface and the regular paper quality registered in advance. It was an object of the present invention to develop a paper quality material judgment device capable of accurately judging that the paper quality is normal by comparing with the standard pressure distribution data of the standard piece.

  As a result of diligent research, the present invention has been able to devise the following means for solving the above-mentioned problems.

In other words, the present invention applies a constant pressing force to the test piece placed on the pressure-sensitive sensor unit, the pressure distribution measurement data on the paper surface, and the paper pressure distribution standard of a regular paper quality standard piece registered in advance. In the paper quality material judgment device that compares the data and judges that it is regular paper quality,
The sensor unit for measuring the roughness of the paper surface arranged a plurality of piezoelectric thin film elements in a matrix, and pressed the paper surface roughness information detecting means for converting the pressure applied to each piezoelectric thin film element into an electric signal or the paper surface. It is composed of a sensing unit that detects the roughness of the paper surface from the strength of the pressure and a detection circuit that takes out the difference in pressure due to the unevenness of the paper surface as a potential difference,
Or in the paper quality material judgment device that images the pressure distribution measurement value of the test paper piece in the pressure sensitive sensor part, compares the imaging standard data of the paper quality standard piece registered in advance, and judges that it is regular paper quality,
A pressure sensitive sensor unit has a plurality of pressure sensitive elements, and provides a paper-based material determination device characterized in that an image is formed based on a numerical value calculated by the number of pressure sensitive elements.

In addition, a lifting pipe is fixed to a lifting stage that is freely lifted and lowered by a lifting guide that is vertically fixed to the base, and the feeling of the set of test paper pieces fixed on the support table by operating the lifting operation dial. After lowering the pressure sensor part until the pressing element at the tip of the lifting head comes into contact with the pressure sensor part, the lifting pipe is further lowered, and the pressure load on the pressure sensor part is determined only by the weight of the lifting head, and the pressure distribution of the test piece is measured. The flexible sheet attached to the surface of the sensor unit is characterized in that it is configured to measure, such as an ultra-thin PET film, a double-sided adhesive film, an ultra-thin PET film, and gold sequentially from the lower layer. It consists of a vapor-deposited film of conductive material and a slightly adhesive PET surface protective film. The preferred thickness of each layer is ultra-thin PET film 6μ, double-sided adhesive film 10μ, ultra-thin PET film. Provided is a paper material determination apparatus characterized by having a film thickness of 2 [mu] m, 300 [mu] m of gold vapor deposition film, and 10 [mu] to 12 [mu] m of a slightly adhesive PET surface protective film.

  Since it is a paper quality material determination device that determines the normal paper quality by comparing the pressure distribution measurement data on the paper surface with the paper pressure distribution standard data of the regular paper quality standard pieces registered in advance, the test paper piece is There is an effect that it is possible to clearly determine whether the paper quality standard piece is similar or dissimilar to the paper surface pressure distribution standard data.

  It is a perspective view of a paper-material determination apparatus.   It is a fragmentary sectional view of a raising / lowering pipe and a raising / lowering head.   It is a side view which contact | abutted the raising / lowering head to the sensor part.   It is a block diagram which shows the structural example of a paper quality material determination apparatus.   It is sectional drawing which mounted the test paper piece through the flexible sheet in the sensor part.   It is a disassembled perspective view of the flexible sheet for surface pressure transmission.

  As shown in FIG. 1, a lifting pipe 5 is fixed by a fixing part 3 to a lifting stage 2 that is held up and down by a lifting guide 1 that is vertically fixed to a base 10, and the lifting stage 2 is lifted and lowered. The operation dial 4 can be moved up and down.

  As shown in FIG. 2, a flange 62 at the upper end of the lifting head spindle 61 is locked to the inner lower end of the lifting pipe 5, and the lifting head 6 is fixed to the lower end of the spindle 61. A pressing element 63 is fixed to the.

  In this state, the elevating pipe 5 is fixed to the elevating stage 2 via the fixing component 3, and the pressing element 63 at the tip of the elevating head 6 is in a state of being separated from the test paper piece 81.

  A support table 7 is fixed to the base 10 by a fixing jig 9, and a test paper piece set portion 8 is disposed on the support table 7 at a coaxial line position of the elevating head 6.

  By the operation of the elevating operation dial 4, the elevating head 6 is lowered until the presser 63 at the tip of the elevating head 6 comes into contact with the test piece 81 on the upper surface of the pressure sensitive sensor 11 of the test piece set 8 fixed on the support table 7. When the elevating pipe 5 is further lowered after being moved, the pressing load on the pressure sensor unit 11 is only the weight of the elevating head 6 as shown in FIG.

  When the pressure distribution of the plurality of test paper pieces 81 is measured in the above-described state, the weight of the elevating head 6 is always a constant load, so that the test paper pieces 81 placed on the pressure-sensitive sensor unit 11 are constant. By applying a pressing force, it is possible to determine whether the paper quality is normal by comparing the pressure distribution measurement data of the paper surface with the paper pressure distribution standard data of the regular paper quality standard pieces registered in advance.

  The sensor unit 11 for measuring the roughness of the paper surface 82 includes a plurality of piezoelectric thin film elements arranged in a matrix, and a paper surface roughness information detecting means for converting the pressure applied to each piezoelectric thin film element into an electric signal, or a paper surface. The sensor comprises a sensing unit that detects the roughness of the paper surface from the strength of the pressure when pressed, and a detection circuit (not shown) that takes out the difference in pressure due to the unevenness of the paper surface as a potential difference. The pressure distribution measurement value of the test strip 81 can be imaged, and the image standard data of the paper quality standard pieces registered in advance can be compared to determine the regular paper quality.

  In addition, the imaging can be performed based on a numerical value obtained by calculating the pressure distribution by the number of pressure-sensitive elements, in which the pressure-sensitive sensor unit 11 has a plurality of pressure-sensitive elements (not shown). is there.

  As shown in the block diagram of FIG. 4, a configuration example of the paper quality determination device is used to measure a plurality of test paper pieces 81 with the sensor unit 11. The paper surface pressure distribution standard data of the paper quality standard piece can be compared by the determination unit to determine that the paper quality is normal.

  Moreover, the determination result by the determination part 15 can be displayed on the display part 16, and a determination result can also be transmitted via a transmission part with respect to the apparatus which has a printing part.

  As shown in FIG. 5, when the paper surface 82 of the test paper piece 81 is pressed against the pressure-sensitive sensor unit 11 via the surface-pressure transmitting flexible sheet 12, the roughness of the paper surface is accurately transmitted to the pressure-sensitive sensor unit 11. can do.

  The flexible sheet 12 for surface pressure transmission to be attached to the sensor unit 11 is formed of a laminated body such as a plurality of ultra-thin PET films, and as shown in FIG. , Double-sided adhesive film 122, ultra-thin PET film 123, vapor-deposited film 124 of a conductive material such as gold, and slightly adhesive PET surface protective film 125. The preferred film thickness of each layer is ultra-thin PET film 6μ , Double-sided adhesive film 10 μ, ultra-thin PET film 2 μ, gold vapor-deposited film 300 mm, and slightly adhesive PET surface protective film 10 μm to 12 μm.

  Since the present invention is configured as described above, it can be used to determine the overall paper used for printing, and is not limited to copying machines, facsimile machines, ink jet printers, laser printers, etc. The industrial applicability that can be used is great.

DESCRIPTION OF SYMBOLS 1 Lifting guide 2 Lifting stage 3 Fixed component 4 Lifting operation dial 5 Lifting pipe 6 Lifting head 61 Lifting head spindle 62 Flange part 63 Presser 7 Support table 8 Test paper piece set part 81 Test paper piece 82 Paper surface 9 Fixing jig 10 Base 11 Pressure-sensitive sensor unit 12 Flexible sheet 121 for surface pressure transmission Ultra-thin PET film 122 Double-sided adhesive film 123 Ultra-thin PET film 124 Deposition film 125 Slightly-adhesive PET surface protective film 13 Control unit 14 Registration unit 15 Determination unit 16 Display unit 17 Transmitter

Claims (3)

A constant pressing force is applied to the test piece placed on the pressure sensor, and the pressure distribution measurement data on the paper surface is compared with the paper pressure distribution standard data of the regular paper quality standard piece registered in advance. In the paper quality material judgment device that judges that the quality is regular paper quality,
The sensor unit for measuring the roughness of the paper surface arranged a plurality of piezoelectric thin film elements in a matrix, and pressed the paper surface roughness information detecting means for converting the pressure applied to each piezoelectric thin film element into an electric signal or the paper surface. It is composed of a sensing unit that detects the roughness of the paper surface from the strength of the pressure and a detection circuit that takes out the difference in pressure due to the unevenness of the paper surface as a potential difference,
Or in the paper quality material judgment device that images the pressure distribution measurement value of the test paper piece in the pressure sensitive sensor part, compares the imaging standard data of the paper quality standard piece registered in advance, and judges that it is regular paper quality,
A paper-based material determination apparatus, wherein the pressure-sensitive sensor unit has a plurality of pressure-sensitive elements, and images the pressure distribution based on a numerical value calculated by the number of pressure-sensitive elements.   A lifting pipe is fixed to a lifting stage that is held up and down freely by a lifting guide that is vertically fixed to the base, and a pressure sensor for the test piece piece set part fixed on the support table by operating the lifting operation dial. After the lowering pipe is lowered until the presser at the tip of the elevating head comes into contact with the part, the elevating pipe is further lowered, and the pressure distribution of the test paper piece is measured using only the weight of the elevating head as the pressure load on the pressure sensor. The paper material determination apparatus according to claim 1, wherein the paper quality determination apparatus is configured as described above.   The flexible sheet to be attached to the sensor surface is an ultra-thin PET film, double-sided adhesive film, ultra-thin PET film, deposited film of conductive material such as gold, and a slightly sticky PET surface protective film in order from the lower layer. The preferred film thickness of each layer is as follows: ultra-thin PET film 6μ, double-sided adhesive film 10μ, ultra-thin PET film 2μ, gold deposited film 300mm, slightly-adhesive PET surface protective film 10μ-12μ The paper-based material determination apparatus according to claim 1, wherein:

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