RU2068541C1 - Gear measuring coordinates and dimensions of defects of rolled materials - Google Patents

Abstract

FIELD: measurement technology. SUBSTANCE: gear measuring coordinates and dimensions of defects of rolled materials has check rule, unit of its movement, unit of hermetically sealed reed relays, permanent magnet, unit of light- emitting diodes, control toggle switch, encoder, register of code storage, circuit controlling register, interface, microprocessor, pulse generator, decoder. EFFECT: expanded technological and functional capabilities thanks to usage of mobile check rule with light-emitting diodes and unit of hermetically sealed reed relays installed along screen of inspection of defects and devices for reading and sending of information into microprocessor. 2 dwg

Description

 The invention relates to the field of engineering for light industry and can be used for sorting roll materials.

 A device [1] is known for rejecting a moving textile web, comprising an inspection table with a chalk holder mounted above it for marking a defective area.

 The disadvantage of this device is the inaccuracy of determining the coordinates of the defect along the length and the uncertainty of the coordinates according to the width and size of the defects, the chalk marker requires periodic replacement due to wear and tear, as well as the lack of a system for the automated formation of an array of defects and a "Passport piece".

 A device [2] is known for the automated formation of a fabric roll passport, comprising a reversible meter for web length and width, a defect indicator with a memory element connected to a length sensor and a fixed zero mark line for defects, a coincidence circuit and a digital printing device.

 The disadvantage of this device is the inconvenience and practical impossibility of accurately combining the boundary of the defect of the moving tissue with the zero line of the mark of the defect, motionlessly fixed on the reference plane.

 The aim of the invention is to increase the accuracy of determining the coordinates and sizes of defects of roll materials.

 The goal is achieved in that the control line marking the defects of the material is made in the form of a movable permeable ruler with a block of LEDs mounted with the ability to move in the longitudinal direction relative to the screen in a plane parallel to it by means of two pairs of support rollers with mutually parallel rotation axes and one pair of rollers, rotation axis which are perpendicular to the plane of the screen and the axes of rotation of the rollers of the first two pairs, and two cogged pulleys kinematically connected by a flexible cable; the device is equipped with a flow boundary switch across the width and a position sensor of the control line of the mark of defects, made in the form of a line of reed switches mounted motionless along one of the sides of the screen, and the counting-solving unit is made in the form of a code storage register with a control circuit, an encoder, the output of which is connected with the input of the code storage register, the state counter of the translucent ruler, the decoder connected to its output, the control input of the state counter of the translucent ruler is connected to the output a defect border of the defect in width, a pulse generator, an output connected to the input of a defect border of the defect in width, the output of the decoder is connected to the input of the position sensor of the control line, the output of which is connected to the input of the encoder, a microprocessor connected via an interface and a communication channel to the code storage register and counter translucent ruler.

 Figure 1 shows a functional diagram of a device for determining the coordinates of tissue defects; figure 2 node moving the control line; figure 3 diagram of the formation of information about the coordinates and sizes of tissue defects.

 The device contains a control line made in the form of a ruler 1 with LEDs, mounted on a tubular bar 2 of light alloy; a knot of moving 3 of the strap 2 along the guides 4, mounted on the screen 5 with a translucent screening device 9 with lower and upper lights (not shown in Fig.); a permanent magnet 10, rigidly mounted on a control line; reed switch block 11; LED battery 12; LED toggle switch 20; encoder 13; code storage register 14; register control circuit 15; multiplexer communication channel 16; interface 17; microprocessor 18; pulse generator 19; pulse counter of LED indication 21; decoder 22; a length reference line and measuring the width of the fabric 23. The knot for moving the strap consists of two pairs of rollers 24 with rotation axes parallel to the screen plane, and one pair of rollers 25 with rotation axes perpendicular to the screen plane, two-strand pulleys 6 kinematically connected by a flexible cable 7 , which provide the movement of the strap and with it the control line in parallel and along the plane of the screen to the extent limited by spring-loaded stops 8.

 The device operates as follows.

 Pre-unwound web material 26 moves from top to bottom across the screen. The origin of the length of the material begins at the moment when the front border of the material (the beginning of the piece of fabric) crosses the line of the origin of the length and measure the width of the fabric. Line 1 with a control line in its original position, i.e. in the lowermost area of the screening screen, it is supported by spring-loaded stops 8. In this position, the moving fabric is open for visual analysis over the entire transparent area of the screen 9. For the toggle switch 20 for controlling the LEDs, the initial position is when the battery power of the LEDs 12 is turned off. The count of the amount of material transported along the length is carried out along the line 23 of the reference point for the length and width of the fabric. In the initial position, the control line does not coincide with the reference line of the length and width of the moved material. The mismatch of these two lines is recognized by the microprocessor 18 as normal, provided that the permanent magnet 10, mounted on the line 1, is located above the reed switch in the block 11, determining its location as the source.

When the fabric moves from top to bottom, the operator visually disassembles the fabric and, upon detecting a defect on its surface, stops the tissue transfer drive so that the defect border does not leave zone 9 of screen 5. The microprocessor 18 switches to the information processing mode according to the “Stop by defect” sign. To determine the coordinates and linear dimensions of the defects, the operator moves the tubular bar 2 together with the control line on the ruler 1 up the screen 5 and aligns the lower edge of the ruler, i.e. control line with the beginning, and then with the end of the vice. When the strap moves, the magnet 10 includes alternately mounted reed switches in block 11 and thereby, with an accuracy equal to the step of installing the reed switches, the correction of the defect position relative to the reference line of the length and width of the fabric is determined, i.e. relative to the current value of the length L _i . Information from the reed switch block 11 through the binary code encryption encoder 13, the code storage register 14, the multiplexer communication channel 16 and the interface 17 is supplied to the microprocessor 18. The block 15 generates information recording signals in the code 14 storage register. Thus, the information about the location of the tissue defect along the length and its linear size relative to the position of the reference line of the length and width of the fabric are recorded in the memory of the microprocessor. The coordinates of the position of the defect along the width B and its size Z in case of its locality are determined using the battery of the LED 12. After setting the control line at the end of the defect, the operator puts the toggle switch for controlling the LEDs 20 to one of the extreme positions, for example, to the left with the right equal edge. The pulses from the generator 19 are fed to the input of the pulse counter LED indication 21. Simultaneous decoder 22 controls the battery of LEDs 12, which is an indicator of coordinates across the width of the fabric, and alternately turns on the LEDs with a frequency sufficient to visually monitor the movement of the light signal on the light-transmitting line 1. When coincidence of the position of the boundary of the defect with the "running" light signal, the operator switches the toggle switch 20 to its original position and the transmission of pulses to the input of the counter 21 is stopped. The number of pulses transmitted to block 21 corresponds to the distance B from the edge of the fabric to the defect in units corresponding to the step of installing the LEDs on the ruler. This data is transmitted via blocks 16 and 17 to the microprocessor 18. By turning on the toggle switch 20 again, the left edge of the defect coincides with the light signal and also stops the pulse counter 21. The number of pulses in this case will correspond to the value B + Z. The microprocessor determines the difference between the two received values the size of the defect and forms in its memory an array of data regarding the size of the defect along the length, using the current values of the length and the corrections received from the reed switch unit 11 when combining the control line ki with a vice.

In the event that the boundaries of the defect extend beyond the boundaries of the transparent section of the screen, the correction is determined by its beginning (l $\genfrac{}{}{0ex}{}{\text{n}}{\text{i}}$ ), then the machine’s drive is turned on, the fabric moves until the second border of the defect appears on the screen. When the machine drive is turned off, the tissue stops again and, using the movable control line for determining the coordinates of the defects, a correction is made in the microprocessor memory (l $\genfrac{}{}{0ex}{}{\text{n}}{\text{i + 1}}$ )

The information obtained is processed by software together with the current values of the length of the moving tissue (L _i ). After recording information about the defect in the microprocessor memory, the operator returns the ruler to its original position and turns on the tissue transfer drive. When the next defect is detected, the information processing cycle repeats. The type of tissue defect is entered into the microprocessor's memory using its keyboard with a conditional code.

 The output data of the document are generated in the microprocessor and correspond to the established form "Piece Passport". According to the data on the types and sizes of defects in a piece of fabric, its grade is determined by microprocessor software, after which the output document "Piece Passport" is issued on its printing device.

Claims (1)

 A device for measuring the coordinates and dimensions of defects of roll materials, comprising a screening screen with external and internal lighting, a control line for marking defects of the material and a counting-solving unit, characterized in that, in order to improve accuracy, the control line for marking defects of the material is made in the form of a movable permeable rulers with a block of LEDs mounted with the possibility of moving in the longitudinal direction relative to the screen in a plane parallel to it by means of two pairs of support rollers with mutually allelic rotation axes and one pair of rollers, the rotation axes of which are perpendicular to the screen plane, and the rotation axes of the rollers of the first two pairs, and two hand pulleys kinematically connected by a flexible cable, the device is equipped with a defect border for width and a position sensor for the control line mark defects made in the form of a line of reed switches mounted motionless along one of the sides of the screen, and the computing unit is made in the form of a code storage register with a control circuit, an encoder, output to is connected to the input of the code storage register, the counter of the state of the translucent ruler, the decoder connected to its output, the control input of the counter of the state of the translucent ruler is connected to the output of the defect border switch in width, a pulse generator, the output of the defect border connected to the width of the defect switch, the output of the decoder connected to the input of the position sensor of the control line, the output of which is connected to the input of the encoder, a microprocessor connected via an interface and a communication channel to the register Ohm code storage and a counter for the state of the translucent ruler.

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