JPS58139002A - Inspection and evaluation device for inspecting number of sheet and measuring thickness - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an inspection and evaluation device for counting and thickness measurement of sheet-like or strip-like materials in kneading and processing machines.

Unique to the East! According to FFalR 149053, one of the capacitor plates of a capacitive field constant value calculator is divided into two parts, and each of the inner capacitor plates is on one base. is publicly known. The base body is then resiliently mounted on both sides. During the measurement process, the print is divided between the central part of the capacitor plate and the second capacitor plate. The base is smooth over the entire width of the print.
The fact that it has to extend beyond that is a disadvantage. In addition to the expense of construction, this arrangement requires additional technical devices to prevent mechanical pickup along the substrate when vibrations become strong.

SUMMARY OF THE INVENTION It is an object of the present invention to provide an inspection and evaluation device which is small in size and easy to install with less economical burden.

The technical line of the present invention is that the measurement transmitter arrangement and associated evaluation circuitry within the machine is such that the base body and associated measurement value transmitter are kept small and that the evaluation by the FF value circuit is carried out on one side of the transport path. The purpose is to form a system so that only the comparison value of is sufficient.

This difference is that there are at least three measurement value transmitters on the base, the base is installed on the side of the material transfer path, and the measurement target to be inspected is placed on one of the internal and external measurement value transmitters at the time of measurement. This is solved by the fact that behind this arrangement there is provided an evaluation circuit which serves to evaluate and obtain the measured value based on the measured value changes due to mechanical vibrations and due to the presence of the measuring object in the measured value transmitter.

For the purpose of contactless measurement against dirt, it is advantageous to provide a capacitive measurement value transmitter on the base body.

Increased sensitivity of the device is achieved by providing a v1 conductivity measurement source on the substrate.

Increased sensitivity in non-contact measurements is achieved by providing capacitive and inductive measurement value transmitters on the substrate.

This measurement value transmitter arrangement is particularly effective in that the inductive measurement value transmitter provided on the base body is inductively connected to the opposite measurement value.

It is advantageous to use a dynamic pick-up system as the inductive measured value transmitter. Preferably, the control and evaluation device receives the signal Yt coming from the volumetric measured value transmitter in the evaluation circuit.
, Ym, Ys, and Y4 are each provided with a 111-pin multiplier behind the capacitance measuring bridge, and a rectifier is provided behind each of these, and the output terminal of the rectifier R is connected to a computer circuit. It is connected to. A total of 11# machine circuits are advantageous.

Behind the outputs C1 and C3 of the rectifiers of the first and second stripes a first subtraction circuit is provided, behind this a coefficient potentiometer, followed by a multiplier connected at the output to a division circuit; Furthermore, a second subtraction circuit is connected to the output terminal of this division circuit, and the input terminal of the coefficient coefficient circuit is connected to the output terminal C1 of the first rectifier. The input terminal Kll of the divider circuit 2 is connected to the input terminal Kll of the divider circuit through the addition circuit 31, and the output terminal C1 of the third luxury circuit is selected to be the second input terminal Kmill of the subtraction circuit following the divider circuit. .

Signals coming from inductive measurement transmitters Y+, Ys, Y
Behind the 1-conductor measuring bridges m and Y4 to be compared, respectively, there is an amplifier, and behind these respectively an IIk rectifier, the outputs of the rectifiers are connected to the calculation*Io+ path, which is the test- and The evaluation device also proves advantageous. In addition, for the computer circuit, a first subtraction circuit is provided behind the output terminals of the first and second rectifiers, and this is connected to the first input terminal of the addition circuit via the coefficient circuit. The second input of the circuit is connected to the output of the first rectifier, and the output of the adder circuit is connected to the first input of the subsequent second subtractor circuit, as well as to the output of the third rectifier. is connected to the second input terminal of the second subtraction circuit.

The effect of the computer circuit is also increased by connecting one analog/digital converter to each output end of the rectifier and connecting it to a digital computer. It is advantageous if at least one of the base bodies is mounted in an elastic filler and accommodated therewith in the housing.

In the measurement value transmitter structure, the number of measurement value transmitters on the base is 3.
It can be made equal to the number of material geometries to be inspected.

It is also advantageous to attach the housing with the base body, which is attached in the elastic filler, to the fixing element so as to be movable at right angles to the transport direction.

The present invention will now be explained in more detail with reference to some embodiments: In the section +1 section, the +S selection of the capacity measurement value transmitter shown in Fig. 1 is attached to one side of the machine.

Capacitor plates 1.2 and 3 are used for valley quantity measurement.
That's helpful. These have a common base of 4KJl,
It is mounted within the housing 5 by means of an elastic filler 6 located there. As the filler 6, for example, a foam can be used. Because the support of the base body 4 is equally present at all interior points, vibrations along the long axis of the base body 4 cannot be affected.

Capacitor plate 7 serves as a counterelectrode for capacitor plates 1.2 and 3. When vibrations along the long axis of the capacitor plate 7 are expected to occur due to machine vibrations, this can be prevented by elastically attaching the capacitor plate 7 to the feeding table.

The object to be measured 8 is transferred in the direction of the plane of the drawings shown in FIGS. 1 and 2. A capacitive measured value transmitter 1.2 with a common counterelectrode 7 delivers comparison values Y and Y, the measured value Y1 of the measuring object 8 being a capacitive measured value transmitter 1.2 with a common counterelectrode 7 as well. Machine 3 sends it out. Separate counter-electrodes, which are commonly attached to another substrate 4, also have the same < car capacity, and the feed values (y+, Y-gone, Y-island,
ya) are all sent to the evaluation device 10.

In the second case, the placement of the casting conductivity measurement value coloring device is different.

In this embodiment of the invention there are three inductances on the substrate 4. First coil 1:3 and second coil 14
sends out comparison values Y and Y. The measured value Ys is obtained by the third coil 15. The variation of the I conductivity of these coils in accordance with the position of the coils relative to the feed table 9 is effected by probe elements 16, I7, 8 which are connected to the housing 5 by means of springs 12, respectively. Base body 4
And coils 13, 14, and 15 are filled with KMJl in filler 6. The sensing element is movably mounted within the coil body. There may be a measuring ring at the tip of the probe 11$16,17,18. The measured values Y1, Y1, and Ym are sent to the evaluation device 11.

When measuring objects 8 with various widths or shapes, the 1-
It is advantageous to install an extra number of measured value transmitters +kMK in the transport direction. The control of the measuring device 11 is then such that the three parallel 11V value transmitters send out the measured values and the measuring object 8 is on the outside of one of the three measuring devices. It is done like this. vI housing
It is also possible to attach a fixed element [9] to Au.

An evaluation circuit for a capacitive measurement transmitter arrangement is shown in Figure 3. This includes the measured comparison value Y.

With the help of Y, we can determine the instantaneous position of the third capacitor plate 3 with respect to the capacitor plate 7 at the position of the substrate 4 with respect to the capacitor plate 7 changed by the vibration, and therefore also the capacitance present without the measuring object 8 in the dielectric. There is a line layer you are looking for.

The constant value Y, must be compared with the value obtained by the ratio vML Y r and Y.

In the case of 1, 1 or 10, the value to be found is found based on the following formula: The value to be found is the series combination of the CI and the capacitance difference of each of the three measurement value transmitters in the inclined position of the base 4. Based on the fact that the comparison should be made.

After compensating the capacitive measurement transmitter with the nominal capacity contained therein in a capacitive measuring bridge powered by a frequency generator, the signal of the unbalanced measuring bridge The amplifiers, the rectifiers, and the rectifiers, each of which is used to boost the amplifiers, reach 27. At this time, the output terminals of rectifiers ii, ah, and n receive a signal C1.
, Cs, and Cm are processed by the subsequent computer circuit. According to the equation 141, K is obtained due to the income of Cm and its soft ratio with cl.

Masu subtraction circuit 'l! A difference between Cs and C3 is formed from bK. Factor Botsiometer 4 multiplies its output signal by 0.5. The signal then reaches the multiplier lK. - Now apply the 01- signal to the signal. The cl- signal is summed in parallel with the output signal of the coefficient potentiometer in a summing circuit 31. Both signals, the output signal of the multiplier and the output <tS of the adder circuit 3J, are placed on the shoulder of the division circuit, and division is performed there. The generated signal is now equivalent to CmK and subtraction 1g
11 with the C1- signal. The output signal A of the fIR circuit corresponds to the capacitance change due to the measurement object 8 in the third measurement value transmitter.

FIG. 4 shows an evaluation circuit 11 for an inductive measured value transmitter.

According to the fact that Lm is composed of a series combination of L- and the inductance difference between them, the relational expression %) is obtained. The factor F reflects the relationship between a very specific inductance change and a change in Ll. This must be determined experimentally.

After the inductive side constant value transmitter(s) is compared with the nominal inductance 35.36.37 in the bridge to the II conductor, the output signal from the unaccompanied measuring bridge is the output signal from the unascillated measuring bridge for each booster Z4 following the measuring bridge. It is amplified by .2AK and rectified by rectifier 5, station, and moss. In the subsequent computer, the output signals of the first rectifier 6 and the second 11 rectifier are subtracted in a subsequent subtraction circuit, and the difference signal is multiplied by a factor F in a subsequent coefficient circuit 39. Coefficient F is 1
If it is smaller, the coefficient circuit includes a coefficient (b) that is substantially convex, and if it is thicker than l, for example, a DC pressure booster can be used.

The difference signal that has changed by the factor F then reaches the adder circuit,
Here, it is added to the output signal of the first em unit 6.

The added signal is then sent to the third subtracter 41.
It is compared with the output signal of the i-current device 4 by forming a difference. At the output of this subtraction circuit there is now the desired output signal.

Using this output signal A, the thickness of the object to be measured can be displayed by means of a display screen. A subsequent Siemit trigger can be used to perform sheet count inspection. In that case, scooping is done mechanically.

In the case of measuring the influence of mechanical linear motion at very high frequencies where the signal travel time may affect Ichinosada Ayuka, 7 knowledgeable people's Tsukugo Sakeji KN! m′
It is necessary to insert one member.

[Brief explanation of the drawing]

Figure 1 is a one-position diagram of a capacitive measurement value transmitter. Figure 2 is a diagram of the layout of a conductive measurement value transmitter. 2 shows an evaluation circuit for a sex measurement value transmitter. 1-3-... Capacitor plate 4... Base 5 - Housing 6... Filler 7... Capacitor plate 8... Measurement object 9... Feeding table mark 0-11 -... Evaluation (b) Route 12-1 Spring 13-15-- Coil 16-18-- Probe element 19-23-- Nominal capacitance 4-24-
... Amplifier ff) -27 ... Rectifier A - Subtraction circuit 4 ... Coefficient potentiometer addition ...
Multiplier 3] River Addition circuit wing... Subtraction circuit wing... 1ljl equal wave originating 'kt machine...
・ Nominal inductance attack for division circuits 35-37 ... TLC calculation circuit 39 ... Coefficient circuit 40 ... Addition circuit 41 ... Subtraction circuit, drawing; γ1 book (no change in content) Figure 1 procedure Correction book Showa - February 2007? Mr. Kazuo Chikusugi, Commissioner of the Japanese Patent Office 1. Indication of the case Showa Dan 41 #A No. 5369 2. Name of the invention Inspection and evaluation device for sheet number inspection and thickness measurement 3. Amended person Landolfer Ci. Tame Totsu 7 - Name Volksaigner Betrib Kombinato Polygraph "Werner Rampeltz 1 Twipchitsuhi 4, Agent 6, Revised Uchiharu As shown in the attached sheet.

Claims (1)

[Scope of Claims] l Inspection and evaluation device for counting and thickness measurement of sheet-like or strip-like materials, comprising a measurement value transmitter mounted on a common elastically mounted base body. in which at least three measurement value transmitters are located on the base body (4), the latter being provided in the preparation of the material feed path,
#j vs. Ji to check! (8) is located on one side of the internal/naigai II #j electric value transmitter at the time of #j determination, and at the rear of this arrangement, there is a change in the measured value due to mechanical vibration, and the object (8) to be measured in the calculation calculator. An evaluation circuit (which is useful for evaluating and accumulating #j setting wax based on the changes caused by the presence of
10.0) Testing and evaluation according to claim 1, characterized in that the substrate (4) K is provided with a capacitive measurement value transmitter. Apparatus 3: The base (4) is equipped with a VI vulgaris measurement value transmitter. Inspection and evaluation device 5 according to claim 1, characterized in that a rice conductivity column fixed value transmitter is provided. Inspection and evaluation device 6 according to Claims 1.3 and 4JA, characterized in that the device is inductively connected to a measurement value transmitter in which a dynamic pickup system is used as a paddy conductivity measurement value transmitter. Claim 1.
Testing and evaluation device 7 according to paragraphs 3 and 4 In the evaluation circuit (g), one amplifier is installed behind each capacitive measuring bridge for comparing the numbers Y1, Yl, Ya and Y4 coming from the capacitive measuring value transmitters. (Otsu, Mu, 2
4), but one rectifier (
25, A, 27) is provided, and a rectifier (25, A, 2
Inspection and evaluation device 8 according to claims 1 and 2, characterized in that the output terminal of 7) is connected to a computer circuit.
2b) output end C, and the first subtraction (b) after C1.
(28), and behind the latter there is a coefficient potentiometer (4), followed by a multiplier (3o), connected at its output to a divider circuit (34). A second subtraction circuit (32) is connected to the output end of the circuit (34), and the input end of the multiplier (:l) is connected to the coefficient potentiometer (4). The needle positioning circuit (3) is connected to the output terminal CI of the #L regulator (5)
1), and the output terminal C1 of the third rectifier (27) is connected to the input terminal of the second rectifier of the division circuit (34) through the division circuit (34).
WJ1.34) is connected to the second input terminal of the second subtraction circuit (32) following WJ1.34).
Inspection and evaluation device 9 according to items 2 and 7 In the evaluation 1iii circuit (11), one each is installed behind the inductive measuring bridge that compares the signals Y5, Ys, Yi and Y4 coming from the #h conductive fixed value transmitter. amplifiers (Z, 23.24), and one IJ! behind each of these. A sink (25, station, 27) is provided, (
The output end of the flow device (25, a, 27) is connected to a computer circuit. A first subtraction circuit (38) is provided behind the output end of the second rectifier (2b), which is connected to an addition circuit (4) via a tightening circuit (39).
0) is connected to the first input terminal of the adder circuit (4U).
The second input terminal of w,l is the output terminal of the rectifier b("m),
The output of the adder circuit (4 (J)) is connected to the first input of the paralysis circuit (41) of the subsequent ship 2, and also to the third rectifier (27).
Inspection and evaluation apparatus according to claims 1.3 and 9TA, characterized in that the output terminal of is connected to the second input terminal of the second subtraction circuit (11). , an analog-to-digital converter is attached to each output end of the device (δ, 4), and these are connected to a digital calculation. Inspection and evaluation device 12 according to paragraphs 7 and 9. At least one of the substrates (4) is dispersed in an elastic filler (6), together with a nozzle (
5) Inspection and evaluation device 13 according to claim 1, characterized in that the number of #1 constant value transmitters on the base body (4) exceeds 3 and is housed in the material to be inspected. Inspection and evaluation device 14 according to claim 1, characterized in that the number of geometries is equal to the number of geometries.
2. Inspection and evaluation device according to claim 1, characterized in that the housing (5) with ) is attached to the fixed element movably at right angles to the transport direction.