Classifications

• • G—PHYSICS
  • G01—MEASURING; TESTING
  • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
  • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
  • G01N21/62—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light
  • G01N21/63—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light optically excited
  • G01N21/64—Fluorescence; Phosphorescence
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
  • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
  • B65H7/00—Controlling article feeding, separating, pile-advancing, or associated apparatus, to take account of incorrect feeding, absence of articles, or presence of faulty articles
  • B65H7/02—Controlling article feeding, separating, pile-advancing, or associated apparatus, to take account of incorrect feeding, absence of articles, or presence of faulty articles by feelers or detectors
• • D—TEXTILES; PAPER
  • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
  • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
  • D21H23/00—Processes or apparatus for adding material to the pulp or to the paper
  • D21H23/78—Controlling or regulating not limited to any particular process or apparatus
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
  • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
  • B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
  • B31B50/006—Controlling; Regulating; Measuring; Improving safety
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
  • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
  • B65H2511/00—Dimensions; Position; Numbers; Identification; Occurrences
  • B65H2511/10—Size; Dimensions
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
  • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
  • B65H2511/00—Dimensions; Position; Numbers; Identification; Occurrences
  • B65H2511/50—Occurence
  • B65H2511/51—Presence
  • B65H2511/512—Marks, e.g. invisible to the human eye; Patterns
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
  • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
  • B65H2513/00—Dynamic entities; Timing aspects
  • B65H2513/50—Timing
  • B65H2513/51—Sequence of process
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
  • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
  • B65H2515/00—Physical entities not provided for in groups B65H2511/00 or B65H2513/00
  • B65H2515/60—Optical characteristics, e.g. colour, light
• • D—TEXTILES; PAPER
  • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
  • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
  • D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
  • D21H21/14—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
  • D21H21/16—Sizing or water-repelling agents
• • D—TEXTILES; PAPER
  • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
  • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
  • D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
  • D21H21/14—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
  • D21H21/30—Luminescent or fluorescent substances, e.g. for optical bleaching
• • G—PHYSICS
  • G01—MEASURING; TESTING
  • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
  • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
  • G01N21/84—Systems specially adapted for particular applications
  • G01N21/86—Investigating moving sheets
  • G01N2021/8663—Paper, e.g. gloss, moisture content

Definitions

• the present invention relates to a method and an apparatus for detecting a detection object having a fluorescent luminous body, and particularly to a method for sizing of a collating machine, a box-making machine, a bookbinding machine, etc., for determining the presence or absence or degree of a sizing defect. It is inspected by the fluorescent light of the luminous body and is used for the glue detection method and device that controls the glue application amount.
• a fluorescent substance is attached to the detected object, or a fluorescent substance is added or applied, and ultraviolet light is irradiated on the detected object. This was done by detecting the fluorescent light with a light receiving element.
• the surroundings of the detector, ultraviolet light source and work are surrounded by a light shielding plate or a light shielding box to reduce the influence of disturbance light. It has to be removed, which requires a special box, etc., which has the disadvantage that the range of ffl use is largely limited.
• the coated glue is irradiated with light using an optical sensor
• the reflected light or transmitted light is received by the light receiving device, and the light
• the color and material must be constant, for example, collation
• the capacitance sensor is used to detect the difference in the static capacity due to the moisture difference in the paper or film, and determine the glue amount or the presence or absence of the glue. A way is being considered.
• the capacitance sensor cannot measure when there is a metal near the detector, and in order to measure a minute difference in capacitance, a delicate detection unit is required. It has a disadvantage that it requires alignment and is very weak against the vibration of the object to be detected, so that operability is poor and production is severely hindered.
• the current detection method is practically unusable for practical use.
• the operator performs visual inspection or sample inspection, or another operator inspects all products in a separate process, resulting in defective gluing. It is a fact that they have discovered.
• it is physically impossible to completely eliminate defects by visual inspection or sample inspection of workers and even if individual differences arise and the capability of the equipment is improved, no Were not completely released from the work.
• the worker even on a stage where other workers perform an all-instrument inspection in a separate process, the worker must perform pure work for a long time.
• the present invention has been made in view of the above circumstances, and an object of the present invention is to detect an object provided with a fluorescent light emitting element with a plurality of light receiving elements, thereby detecting the object with an excellent SZN ratio.
• Another aspect of the present invention relates to a device for automatically applying a paste to a sheet such as continuous paper, film, or a sheet, and performing a predetermined processing operation.
• An object of the present invention is to provide a gluing detection method and apparatus for detecting the amount of glue based on the amount of light emitted from a fluorescent agent added to the glue, thereby activating the inspection process and improving production efficiency.
• an object having a fluorescent illuminant is irradiated with ultraviolet light, and the fluorescence of the fluorescent illuminant is detected by a light receiving element.
• the object to be detected is affected by disturbance light or by the color change or quality change of the object. Without detecting.
• a fluorescent agent is added to the paste in advance, and the fluorescent agent is applied to the sheets.
• the glue is irradiated with ultraviolet rays, and the amount of light emitted is detected by two or more light receiving elements.
• Another aspect of the present invention relates to a glue detecting device of a device for automatically applying a glue to sheets to be conveyed, adding a fluorescent agent to the glue in advance, and performing a predetermined processing operation. It is.
• An object of the present invention is to provide a light source means for irradiating the glue with ultraviolet light at the stage when the glue is applied to the sheet to be conveyed, and a light emitting amount of the glue emitted by the light source means. More than one light receiving element This is achieved by providing detection means for detecting the presence or absence of gluing failure based on a detection signal from the detection means, and determining means for warning occurrence of a failure in a predetermined case. You.
• the glue is automatically applied to the sheets to be conveyed, and a fluorescent agent is added to the glue in advance, and the glue application amount of a gluing machine for performing the glue application operation by ffling the glue is controlled.
• the object of the present invention is to provide a light source unit for irradiating the paste with ultraviolet light when the paste is applied to the conveyed sheets, and a light emission amount of the paste emitted by the light source unit.
• This invention irradiates a detection object having a fluorescent luminous body with ultraviolet light, receives fluorescent light and disturbance light from the fluorescent luminous body by a plurality of light receiving elements such as photodiodes, and outputs output data to a computing circuit. Detects objects with good SZN ratio (even if there is scattered light).
• a fluorescent agent is added in advance to a glue used for work, and continuous paper, film.
• the paste is irradiated with ultraviolet light from an ultraviolet light source such as a black client, and the amount of light emitted is used as the paste amount. Automatically determines the presence or absence of gluing defects and the amount of glue by detecting
• the present invention provides a gluing process in a sizing machine such as a collating machine, a box making machine, a bookbinding machine, etc., in which fluorescent glue is added to the glue used for the work in advance, and the sizing is performed.
• a sizing machine such as a collating machine, a box making machine, a bookbinding machine, etc.
• fluorescent glue is added to the glue used for the work in advance
• the sizing is performed.
• the paste to which the fluorescent light is added is applied to the sheet such as continuous paper, film or sheet to be applied at the paste application section
• ultraviolet light is applied to the paste by an ultraviolet light source such as a black client. Irradiation and emission of light; a is detected as the amount of glue, and computer processing is performed by the device itself, and data is input to the glue application section in a feedback manner to control the amount of glue applied to a constant level. I do.
• the present invention it is possible to provide a method of detecting a detection object by a fluorescent luminous body, which detects the detection object with a high S-ratio, and automates the detection process and improves production efficiency.
• the applied paste can be efficiently inspected without the influence of disturbance light, etc.
• Fig. 1 is a diagram showing the use of a gluing defect detection device that realizes the method of the present invention in a collating machine.
• Fig. 2 is a diagram showing the positional relationship between the ultraviolet ray source and the detection unit.
• Fig. 4 shows the block configuration of the circuit system of the gluing failure detection device, Fig. 4 shows the structure of the detection unit, Fig. 5 shows its circuit diagram, and Fig. 6 shows the gluing failure detection device of the machine.
• Diagram showing the use of the gluing device Fig. 7 shows the positional relationship between the ultraviolet light source and the detector, and Fig. 8 shows the use of the glue failure detection device in the gluing device of the bookbinding machine.
• Fig. 8 shows the use of the glue failure detection device in the gluing device of the bookbinding machine.
• Fig. 9 is a diagram showing the positional relationship between the ultraviolet light source and the detection unit
• Fig. 10 is a diagram showing the use of a glue application amount control device according to another embodiment of the present invention in a gluing machine.
• Fig. 11 shows an example of the block configuration of the circuit of the glue application amount control device ⁇
• Fig. 12 shows an operation example of the glue application amount control device It is.
• FIG. 1 shows a glue defect detecting device S for realizing a method for detecting a detection object by a fluorescent luminous body of the present invention, which is used in a collating machine. It shows how it was.
• the gluing defect detection device is composed of an ultraviolet light source 1, a detection unit 2, an analog amplifier 3, and an apparatus main body 10 attached to a support member 25 of the couch processing machine. , 5 and the power supply code 6 to detect defective gluing and the amount of glued continuous paper 21A, 21B being conveyed.
• the power switch 16 on the front panel, the reset switch 17 on the front panel, the lamp 18 that lights when the gluing condition is good, and the lamp 19 that lights when the gluing condition is bad A display 100 for displaying the amount of glue is provided, and an alarm buzzer 15 for issuing an alarm when the gluing status is poor is provided on a side panel of the apparatus main body 10.
• Fig. 2 shows the positional relationship between the collating machine, the ultraviolet light source 1 and the detection unit 2, and the lower part of the collating machine is a roll on which continuous paper 21A and 2IB are wound.
• 2 ⁇ A, 20 B are provided, and continuous ffl paper 21 A, 21 B force sent from the rolls 20 A, 20 B in the direction of the arrow ⁇ , the pin wheel provided above It is conveyed in the direction of arrow E via A and 24B.
• a glue application device 22 for applying glue to the continuous paper 21A to be transported, and continuous paper 21 to be transported above the pin i 24A.
• a flywheel 23 is provided for pressing and contacting A and 2 IB.
• the detection unit 2 is located above the glue applicator 22, and further above this, the pin city 24 A
• glue is applied to the continuous ffl paper 21A, which is sent out in the direction of arrow E
• the ultraviolet light source 1 irradiates the glue with ultraviolet light BL and the inspection and detection unit 2 Fluorescence and disturbance light
• Fig. 3 shows the circuit system of the glue detection device in a block configuration, which will be described in detail below.
• a fluorescent lamp type black client or the like is used as the ultraviolet light source 1.
• the adhesive 30 applied to the continuous paper 2A to be conveyed (to which a fluorescent agent is added in advance) is irradiated with the ultraviolet light BL. It has become. Then, while keeping the intensity of the irradiated ultraviolet light constant over time and using high-frequency power (about 20 kHz) to stabilize the fluorescence of the glue 30, the fluorescent lamp-type black It is lit. Furthermore, the light receiving surface of the detector 2 and the ultraviolet light source 1 are 45. With this arrangement, it is possible to reduce the efficiency with which the ultraviolet light BL emitted from the ultraviolet light source 1 is directly incident on the light receiving surface of the detector, thereby improving the SZN ratio.
• Measures for the change in the amount of light (deterioration) of the UV light source are as follows. That is, when the amount of glue is preset by an operator based on experience, this change in light amount becomes a problem. Therefore, in order to eliminate the effect of the change in the amount of light from the ultraviolet light source, a mechanism for measuring the intensity of ultraviolet light is separately provided on the sensor head, and the light emission signal of the glue amount is divided by this ultraviolet light intensity to standardize the signal. I do. Then, this value is compared with the reference data to cope with a change in light amount.
• the detector 2 has a structure as shown in Fig. 4, and converts the fluorescence and disturbance light KL1 and disturbance light KL1 and the disturbance light KL1 received from the light-receiving feeds 43 and 44 into electric signals.
• the signal is processed and transmitted to the apparatus main body 10 by the signal code 4 as the detection code KS 1.
• photo diodes 41 and 42 having a measurement wavelength for visible light are used, and the glue fluorescent light and the disturbance light KL 1 and the disturbance light KL 2 emitted by the ultraviolet light source 1 are used.
• the photoelectric conversion is performed by receiving light, so that the output polarities of the photodiodes 41 and 42 are reversed.
• the characteristics of the photodiode those having a wide measurement field of view are used, and the measurement field of view can be easily set by the shape of the light receiving section or the lens system.
• the outputs of the photodiodes 41 and 42 are input to the board 55 by code.
• three operation devices 51, 52, 53 composed of ICs and a device 54 are provided on the board 55.
• Such a detecting section 2 has a circuit configuration as shown in FIG. 5, in which the photodiodes 41 and 42 cause the light receiving section 40 to be operated by the operational amplifiers 51 to 53.
• the operation circuit section 50 is configured.
• the photo diodes 41, 42 of the light receiving section 40 are opposite to each other.
• Polarity light receiving signals SD 1 and SD 2 are input to the operational amplifiers 51 and 52 of the arithmetic circuit section 5, and the arithmetic signals DS 3 and DS 4 from the operational amplifiers 51 and 52 are output from the operational amplifiers 51 and 52.
• the detection unit 2 receives the light by subtracting the symbol levels of the operation signals DS 3 and DS 4 from the two photodiodes 41 and 42 to obtain a fluorescent light i signal DS 5. The effect of disturbance light is eliminated and the SZN ratio is improved without reducing the emission intensity of the fluorescent light.
• the analog signal amplifier 3 is composed of two operational amplifiers such as a MOS type input operational amplifier.
• the analog signal amplifier 3 discriminates the detection signal KS1 received and photoelectrically converted by the detection unit 2 and improves the SZN ratio. Output to the post-stage circuit.
• a ZD conversion section 11 is composed of a timing pulse control circuit, clock generation circuit, sample hold circuit, AZD conversion circuit, etc., and samples detection i-KS2 from analog i-amplifier 3. To digital i Then, the input is made to the control board computer 12.
• the timing pulse control circuit is generated from a clock generation circuit that controls the operation timing of the sample hold circuit and the AZD conversion circuit in accordance with the control pulse sent from the control womb computer 12.
• the clock pulse with a fixed period is input to the AZD conversion circuit to determine the time required for A / D conversion.
• the sample hold circuit samples the analog voltage at the time of AZD conversion in order to eliminate the conversion difference during AZD conversion, and fixes it to the data value at that time.
• the AZD conversion circuit uses a commercially available 8-bit or 10-bit sequential conversion type AZD conversion IC, etc., the input side is bipolar input, and the input signal range is widened to simplify the whole road break. On the output side, a buffer is incorporated for each bit to take measures against noise and the like.
• the control computer 12 is composed of a board computer, and has a central processing unit (CPU), a storage device (RAM, EPROM), and an input / output interface.
• CPU central processing unit
• RAM random access memory
• EPROM programmable read-only memory
• the central processing unit compares the input signal value read from the serial I / O interface and the judgment value stored in the storage device with the central processing unit to determine the presence or degree of gluing failure, and determines that the gluing is defective. If not, the central processing unit calculates the determination signal HS via the input / output interface and inputs it to the alarm device 13. In addition, a value corresponding to the amount of glue is stored in advance in a (digital value) storage device, and the input signal read as described above is determined and displayed on the display 10 °. I have.
• the alarm device 13 is composed of a relay sequence, etc., and outputs a control signal i PS 1 for operating the alarm buzzer 15 etc. with a judgment signal HS from the control computer 12, and outputs a lamp 19.
• the control signal PS 2 for emitting light is input to the operation unit 14.
• the operation unit 14 consists of a power switch 16, a reset switch 17, a lamp 18, and a 1Q.
• the gluing defect detecting device is operated, the gluing status is checked, and when a gluing defect occurs, the apparatus main body 10 is reset to return to a state where it can be detected again.
• the operator presses the power switch 16 and then presses the reset switch 17 after a countermeasure has been completed due to a defective gluing. In such a configuration, the operation of the gluing defect detecting device used in the couch processing machine will be described.
• the gluing defect detecting device is set in a collating machine as shown in FIG. 1, and the glue applying device 22 is previously filled with the glue 30 to which a fluorescent agent has been added. Then, the operator turns on the power switch 16 provided on the apparatus main body 1 when the couch processing machine is operating, and activates the gluing defect detecting apparatus.
• the glue 30 is applied to the continuous paper 2 1 ⁇ sent from the roll 20 ⁇ by the glue applicator 22, and the fluorescent and disturbance light KL 1 and the disturbance light KL 2 of the glue 3 ⁇ excited by the ultraviolet light source 1 Is detected by the detection unit 2.
• the signal is input to the main unit 1 ⁇ via the analog signal amplifier 3, processed by the AZD converter 11, control unit 12, and alarm device 13, and the lamp 18 on the operation unit 14 lights up
• the display shows that the gluing status is good.
• a defect occurs in the gluing of the continuous ffl paper 21A, it is detected by the detection unit 2 and a sound is emitted from an alarm buzzer 15 provided in the main body 10 of the apparatus.
• the lamp 19 on the operation unit 14 is lit, and the operator is alerted. Emit.
• the worker checks the glue failure of the gun paper 21A and 21B by stopping the cutter machine, and then presses the reset switch 17 of the operation section to press the machine body 1 Reset ⁇ and operate the collating machine again.
• the glue defect detecting device displays the amount of glue on the display 10 °, the operator can control the glue quality by checking the glue amount ⁇ .
• the amount of the fluorescent agent contained in the paste is preferably 1% to 5% of an aqueous solution in a ratio of 0.3% to 10%, and in the embodiment, a 4% aqueous solution is contained in a ratio of 1%. Contained.
• an automatic metering and adding device capable of adding a prescribed amount in one shot may be used.
• Teflon registered trademark
• the wobble computer is used as the control computer 12 in the apparatus main body 10, but a personal computer may be used.
• FIG. 6 shows a state where the gluing detecting device of the present invention is used for a gluing device of a box making machine.
• the gluing defect detection device is equipped with an ultraviolet light source 101, a detection unit 102, and an analog amplifier 103 on the support member ⁇ 45 of the gluing device, and the signal codes 104, 105 and The power supply cord 106 is connected to the main body 11 ⁇ of the device, and detects the gluing failure or degree of the deployment sheet 150 conveyed from the box making machine.
• FIG. 7 shows the positional relationship between the gluing device, the ultraviolet light source 101 and the detection unit 102, which will be described with reference to FIG. 6 above.
• the gluing device is provided with conveyor belts 144A and 144B for transporting the deployment sheet 15 °, and transports the deployment sheet 15 ° on the rollers 146 in the direction of arrow F. It's swelling.
• a glue wheel 142 is provided on the upper part of the roller 144, and is rotated in the direction of arrow G by a glue drive gear 144. The glue wheel 144 rotates while rotating. The glue is applied to the opening seat 50 on the la 1 46.
• a glue boat 144 for applying glue to the glue wheel 142 and a glue tank 140 for supplying glue to the glue boat 144 are provided on the right side of the glue wheel 142.
• the ultraviolet light source 101 and the detection unit 102 are attached to the position shown in the left of the glue wheel, and the ultraviolet light BL is applied to the spread sheet 150 coated with the glue by the ultraviolet light source 101.
• the light emitting portion KL of the glue is detected by the detecting portion 102.
• the object to be inspected is not continuous paper but the spread sheet 150, so that the work of the spread sheet 150 to be inspected is detected by the detection unit.
• a photoelectric switch is provided at a fixed position in front of the detection unit 1 ⁇ 2, and (2) a rotary encoder is provided in the drive unit of the conveyor belts 143 A and 143 B to detect the speed in real time Then, after the photoelectric switch is turned on from the data of 1 and 2, the detector 102 repeats on / off with a delay time.
• the glue detection device is set in the glue device of the box making machine as shown in FIG. 6, and the glue tank 140 is filled with glue to which a fluorescent agent has been added in advance. Then, the operator turns on the power switch 1 16 of the device S 110 before operating the box making machine, operates the box making machine, and transports the printed development sheet 150. The roller 146 is conveyed over the roller 146 by 143 A f 1 43 B. Then, as described above, the detection unit 1 2 is turned on * off, and the fluorescent agent contained in the glue is excited, and the light emission KL is detected as described above. Lamp 1 18 is lit to indicate that the gluing condition is good.
• the alarm buzzer 1 15 and the lamp When the ilg is lit, a warning is given on the work and gluing failure. Stop the box making machine and check the spread sheet. After that, press the reset switch 1 17 to reset the main unit 110 and continue working again. Further, the quality of the gluing can be controlled by the display 100 as in the case described above.
• Fig. 8 shows the glue detection device used in the glue device of the bookbinding machine.
• the glue detection device is equipped with an ultraviolet light source 2 ⁇ 1, a detection unit 202, and an analog amplifier 203 on the support member 2664 of the glue device 261, and the signal code 204 205 and the power supply cord 206 are connected to the main unit 21 1 to detect the gluing defect or degree of the book 270 being manufactured conveyed from the bookbinding machine. I have.
• FIG. 3 shows the positional relationship between the bookbinding machine, the ultraviolet light source 20], and the detection unit 202, which will be described with reference to FIG.
• the bookbinding machine is provided with a gluing device 26, which supplies glue tanks 265 and other glue from the glue supply pipe 26, which is provided at the lower part, and glue equipment ⁇ 26 1 It is to be collected inside.
• glue rolls 2 provided in the gluing device 261 rotate the 2A and 262B.
• the glue is applied to the end of the book 27 (( here, the ultraviolet light source 201 and the detection unit 202 are located on the left side of the gluing device 261, as shown in the figure.
• the UV light source 201 emits ultraviolet light BL to the end face of the book 27 ⁇ on which the glue is applied, and the detecting unit 202 detects the light emission KL of the glue.
• the detection unit 202 is turned on / off by a photoelectric switch and a rotary encoder.
• the glue detection device S is set in the glue unit 261 of the bookbinding machine as shown in Fig. 8, and the glue unit 261 is pre-filled with the fluorescent agent from the glue tank 265 as described above. Supply the added glue. Then, the operator turns on the power switch 216 of the apparatus main body 211 during the operation of the bookbinding machine. Book
• Fig. 10 shows a glue application amount control device according to one embodiment of the present invention! : Is used in a gluing machine.
• the glue application amount control device is composed of a light emitting unit 301, a detection unit 320, an analog signal amplifier 303, a glue application amount detection unit composed of the device body 310, a glue tank 300, and an empty tank.
• the main body 310 has a power switch 3 16, a reset switch 3 17, a control start switch 3 14, and a reference value input switch 3 15 on its front panel. , Level meter overnight and digital input switch 319 are provided.
• Fig. 11 shows a block diagram of the circuit system of the glue application amount control device, which will be described in detail below.
• a fluorescent lamp type black client or the like is used for the light emitting part 33, and the glue applied to the conveyed sheets 33 is used. (To which fluorescent light has been added in advance) is irradiated with ultraviolet light BL.
• the high-frequency power (about 20 KHz) KD is higher than that of the main unit 310. It is supplied and the fluorescent lamp is lit at high frequency.
• the light receiving surface of the detecting section 320 and the light emitting section 301 are almost 45. By arranging them so that the light emission unit 301 emits ultraviolet light BL, the incidence efficiency of direct incidence on the light receiving surface of the detection unit is reduced, and the SZN ratio is improved.
• the detecting section 320 is composed of an optical system such as a lens, and the light receiving section 3222 for efficiently receiving the light emission KL of the glue 3440 and condensing it on the photoelectric conversion section 321, and the convergent light.
• a photo diode having a measurement wavelength is used, and is composed of a light-to-light conversion unit 321, which receives the light emission KL of the glue collected by the light-receiving unit 322 and performs photoelectric conversion. .
• the characteristics of the photodiode those having a wide measurement field of view are used, and the measurement field of view can be easily set by the shape of the light receiving section 3222 or the lens system. Further, only the light emission KL of 34 ° is selected and received.
• a filter FL may be attached to the front of the light receiving section 3222 in order to greatly reduce the influence of extraneous light on the i-th signal. It is also possible to use two detectors 320 to clarify the distinction between paper and glue. Wear.
• Analog signal 3 ⁇ 4Amplifier 03 is composed of two operational amplifiers such as ⁇ 0 S-type input op-amps, and more distinguishes the detection signal KS 1 received and photoelectrically converted by the detection unit 320 It is designed to improve the S ratio and output to the subsequent circuit.
• the A / D conversion unit 3] 1 includes a timing pulse control circuit (not shown), a clock generation circuit, a sample hold circuit, and an AZD conversion circuit ⁇ .
• the detection signal KS2 from the analog i-type amplifier 303 is sampled and converted into a digital code, which is then input to the CPU 312 consisting of a control board control unit. I have.
• the above-mentioned timing pulse control circuit is a fixed pulse generated from the clock generation circuit that controls the operation timing of the sample hold circuit and the AZD conversion circuit according to the control pulse sent from the CPU section 312.
• the period required for AZD conversion is determined by manually applying clock pulses of a periodic period to the AZD conversion path.
• the sample-and-hold circuit samples the analog voltage at the time of A / D conversion to eliminate the conversion error during the AZD conversion, and the data at that time is sampled. The value is fixed at this value. Here, sampling is performed at about 1 to 10 KHz.
• the AZD conversion circuit uses a commercially available 8-bit or 10-bit sequential conversion type A / D conversion IC, etc., and the input side is a bipolar input. On the output side, a buffer is built in for each bit to take measures against noise and the like.
• the CPU section 312 is composed of a Wandboard computer and includes a central processing unit (CPU) (not shown), a device (RAM, EPROM), and an input / output interface.
• CPU central processing unit
• RAM random access memory
• EPROM read-only memory
• a value (digital value) corresponding to the amount of glue applied is stored in advance in the storage device S using the S quasi-value input switch 315 and the digital input switch 319.
• the input signal input as described above is determined, and the glue ⁇ control signal HS is output, and the level is displayed on the level menu 3-18.
• a reset switch 3 17 and a control start switch 3] 4 are provided, and when an operator uses the glue application amount control device, the power switch 3] 6 is turned on. Then, set the amount of glue to be applied using the digital input switch 3 19, input the value using the reference value input switch 3 15, and then press the control start switch 3 14 to operate the device. ing.
• Glue coating amount 3 ⁇ 4 To change the fixed value, press reset switch 17 to repeat the above operation and input new data.) O
• the D / A converter 313 converts the glue amount control signal HS input by the CPU 313 into an analog signal control signal AS and inputs it to the static electricity converter 304.
• the static electricity converter 3 ⁇ 4 applies air pressure to the glue supplied from the pipe 306 A of the glue tank 305 based on the control No. From 7 Apply a certain amount of glue on sheets 3330.
• the glue application amount control device is set in a glue processing machine as shown in No. 10 ⁇ , and the glue tank 305 is filled with glue 340 to which a fluorescent agent has been added in advance. Then, the operator turns on the power switch 316 provided on the apparatus main body 310 when the gluing machine is in operation, and sets the amount of glue applied in advance with the digital input switch 319. Press the reference value input switch 3 15. Next, when the control start switch 314 is turned on, the black client of the light emitting section 30] is turned on (step S1), and the glue application amount control device is operated. A glue 340 is applied to a predetermined position of the sheet 3330 from a glue blowing nozzle 3107 to a sheet 3330 conveyed by the roll 331.
• the light emission KL of the glue 34 ⁇ ⁇ excited by the ultraviolet light from the light emitting section 301 is detected by the detecting section 320, and the photoelectric conversion is performed via the light receiving section 3 222 of the detecting section 320.
• Photoelectric conversion is performed in the section 3 2 1 (step S 3).
• the detection signal KS1 is amplified by the analog signal amplifier 303 (step S4), input to the main unit 31 3 as the detection signal KS2, and subjected to AZD conversion by the AZD converter 311 (step S4).
• step S5 the PU section 312 is manually operated.
• the CPU section 312 compares the set value input from the digital human power switch 3 19 with the digital signal f-number input from the AZD conversion section, and calculates a glue suitable S value. If the set value is equal to J4 (step S6), a new glue S control signal HS is output. Then, it is input to the DZA conversion section 3 13 and DZA converted (step S 7), and the control No. 3 HS is input to the static electricity converter 304 and the glue blowing nozzle 300 The application amount of 40 is controlled (step S8). If the amount of glue applied is an appropriate amount, the amount of glue control is maintained at the initially set value, and the amount of glue applied is constant (steps S 6, S 9, S 2) ⁇
• an aqueous solution of 1% to 596 of the fluorescent is preferably contained in a ratio of 0.3% to: ⁇ %, and in the embodiment, a 4% aqueous solution is used. 1? The ratio was included.
• a personal computer may be used instead of a computer using a computer for controlling the CPU 312 in the apparatus main body 310.
• a control arithmetic circuit was used as a method of subtracting the captured ⁇ sign, but the output ⁇ was calculated by a computer program that was installed in advance. You may.
• a multiplexer circuit may be incorporated in the determination unit to sequentially compare the detection signals.
• a method of optically detecting the fluorescence emission is used as the detecting means, but other detecting means such as a conventional capacitance sensor method may be used.
• the nozzle method is used as the glue applying means, other applying means such as a ballpoint pen method may be used.
• the static electricity converter is used as the glue amount control means, but glue ⁇ may be controlled by changing the opening / closing degree of the nozzle.
• the method and apparatus for detecting an object to be detected by fluorescence emission inspects the presence or absence of a defective pasting degree or the degree of pasting in a pasting process in a collating machine, a box making machine, a bookbinding machine, or the like. However, it can be ffl.

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• Biochemistry (AREA)
• Physics & Mathematics (AREA)
• Life Sciences & Earth Sciences (AREA)
• Chemical & Material Sciences (AREA)
• Analytical Chemistry (AREA)
• Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
• General Health & Medical Sciences (AREA)
• General Physics & Mathematics (AREA)
• Immunology (AREA)
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• Coating Apparatus (AREA)
• Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
• Investigating, Analyzing Materials By Fluorescence Or Luminescence (AREA)

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• 1988
  • 1988-02-05 DE DE19883890059 patent/DE3890059T/de active Pending
  • 1988-02-05 US US07/254,655 patent/US5030833A/en not_active Expired - Lifetime
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