JP4303881B2 - Body guru detection device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention belongs to the technical field of bookbinding. In particular, the present invention belongs to the technical field of detecting whether the text is fed to the bookbinding apparatus in the vertical direction so that the cover and the text are not mistaken (joined) during bookbinding.
[0002]
[Prior art]
There is a guru detection device that detects an error in the top and bottom when supplying text in a bookbinding machine. This type of guru detection device makes a pass / fail determination based on the spine of the text (the mark on the back). In order to make it easy to distinguish the order of the signatures, numbers indicating the name of the book and the order of folding are imprinted on the back of the signatures (backs). In addition, in order to make it easy to find missing pages, random pages, captures, etc., a mark is imprinted on the back of the signature at a position that is aligned with a diagonal line when correctly collated (back sign). Since the back of the main body has a characteristic back sign by the back and the back sign, for example, an optical sensor is used to detect an area where the shading changes due to an error in the top and bottom, and the error in the top and bottom is determined based on that. It is being detected.
[0003]
[Problems to be solved by the invention]
However, since the above-described guru detection device detects the shading of the spine present on the back part of the text, it detects the shading of the spine if the spine is difficult to appear and is not stable (for example, Ajiro binding). I can't. Further, when the back mark is a color in a color printed matter, it is difficult to detect the shading of the back mark. That is, there is a problem that the above-described glu detection device cannot be used, or even if it can be used, there are many malfunctions that hinder production.
[0004]
The present invention has been made to solve the above problems. The purpose is to solve the problems of the conventional guru detection device that cannot be highly reliable because it is affected by the presence or absence and state of the spine present on the back of the text. That is, an object of the present invention is to provide a body text gluing detection method and apparatus capable of detecting a text top and bottom error in upper bookbinding with high reliability.
[0010]
[Means for Solving the Problems]
The above problems are solved by the present invention described below. That is, body glue detector according to claim 1 of the present invention includes an imaging means for outputting an image signal by imaging the back of the upper bound body, illuminating means for illuminating an imaging area of the imaging means, the imaging signal A / D conversion (analog-to-digital converting) means for obtaining a captured image by inputting a digital data, determination area setting means for setting a determination area inside the captured image, and display in the determination area A designated color setting means for setting a designated color from among the colors; a designated color area extracting means for extracting a designated color area from the determination area based on the designated color; and a designated color by counting the number of pixels in the designated color area A designated color area number counting means for outputting the number of areas, a reference designated color area number that is the number of the designated color area of the back that is the determination reference, and an inspection object designated color that is the number of the specified color area of the back that is the judgment target Compare the number of regions And a pass / fail judgment means for performing pass / fail judgment output of the direction of the text.
[0011]
According to the present invention, the back of the body is imaged by the imaging means and an imaging signal is output, the imaging area of the imaging means is illuminated by the illumination means, the imaging signal is input by the A / D conversion means, converted into digital data, and imaged An image is obtained, a determination area is set in the captured image by the determination area setting means, a specified color is set from display colors in the determination area by the specified color setting means, and based on the specified color by the specified color area extraction means The designated color area is extracted from the judgment area, the designated color area number counting means counts the number of pixels of the designated color area, and the designated color area number is output, and the pass / fail judgment means uses the number of back designated color areas as a judgment criterion. A certain number of standard designated color areas is compared with the number of designated color areas to be inspected, which is the number of designated back color areas to be judged, and a text quality judgment output is performed. According to the present invention, in the captured image of the back of the text, the suitability is determined based on the area of a predetermined color in a predetermined determination area in which the shape and / or color of the image greatly changes due to an error in the top and bottom. . Therefore, there is provided a body text gluing detection device capable of detecting an error in the text top and bottom with high reliability.
[0012]
The text guru detection device according to claim 2 of the present invention is the text guru detection device according to claim 1 , wherein the imaging is performed by rounding the back of the text on a bookbinding machine that combines the text of the upper bookbinding and the cover. It is intended to be performed just before performing. According to the present invention, since there is generally no change in the text in the subsequent steps, it is possible to completely prevent the text from being mistaken. In addition, if there is a text with a defect in the top and bottom, it can be removed immediately after the subsequent earing process.
[0013]
The text guru detection device according to claim 3 of the present invention is the text guru detection device according to claim 2 , wherein a color mark indicating a direction is printed on the text, and the orientation is correct when the orientation is correct. The imaging is performed so that the color mark is within the determination area and the color mark is removed from the determination area when the orientation is not correct. According to the present invention, since the color mark is printed, even when the back pattern of the text is not suitable for detection, it is possible to detect the vertical error of the text with high reliability.
[0014]
According to a fourth aspect of the present invention, there is provided the text guru detection device according to the third aspect , wherein the printing is performed immediately after temporary consolidation of fixing the back of the text with an adhesive. is there. According to the present invention, the vertical direction of the text is determined, the quality of the printed color mark is maintained, and an appropriate color mark can be obtained.
[0015]
A text guru detection device according to claim 5 of the present invention is the text guru detection device according to claim 3 or 4 , wherein the color of the color mark is indigo or yellow. According to the present invention, the indigo color mark has good detection sensitivity (S / N) and high reliability. The yellow color mark is inconspicuous even if ink penetrates from the back of the text.
[0016]
The text guru detection device according to claim 6 of the present invention is the text guru detection device according to any one of claims 2 to 5, wherein the text is carried on a carrying means with a holder synchronized with the bookbinding machine. Synchronization signal output means for outputting a synchronization signal indicating the synchronization, and arrival detection means for detecting that the text has reached a predetermined position and outputting an arrival signal, wherein the imaging means The imaging is performed in synchronization with the synchronization signal based on the arrival signal. According to the present invention, since the imaging is performed based on the synchronization signal of the bookbinding machine, high synchronization accuracy can be obtained. In addition, since the arrival signal is assumed, an erroneous determination is avoided without performing imaging when there is no text due to idle driving or the like.
[0017]
The text guru detection device according to claim 7 of the present invention is the text guru detection device according to any one of claims 1 to 6 , wherein the illuminating means illuminates and the imaging means sets the imaging region to be imaged. It has a region setting means. According to the present invention, it is possible to appropriately set the imaging region.
[0018]
According to an eighth aspect of the present invention, there is provided a text guru detection device according to any one of the first to seventh aspects, wherein the text guru detection device inputs the pass / fail judgment output and outputs a warning when the judgment is a defective product. An output means is provided. According to the present invention, an alarm is output when a defective article in the text is detected.
[0019]
The text guru detection device according to claim 9 of the present invention is the text guru detection device according to any one of claims 2 to 8, wherein when the quality determination output is input and the determination is defective, the bookbinding machine is operated. Stop signal output means for outputting a stop signal for stopping the operation. According to the present invention, the operation of the bookbinding machine is automatically stopped when a defective product in the main text group is detected.
[0020]
DETAILED DESCRIPTION OF THE INVENTION
Next, embodiments of the present invention will be described. First, an overview of the text gluing detection device of the present invention will be described. An example of the configuration of the text gull detection device of the present invention is shown in FIG. FIG. 2 shows an example of the text gluing detection device of the present invention installed in a place just before rounding the back of the text in a bookbinding machine that combines the text of the upper bookbinding and the cover. FIG. 3 is a pictorial diagram showing an example of processing in the bookbinding machine that combines the text of the upper bookbinding and the cover.
[0021]
In FIG. 1, 1 is an image pickup means, 2 is an illumination means, 3 is a main body of the guru detection device, 4 is an alarm means, 5 is an arrival detection means, 6 is an imaging area setting means, 7 is an operation input means, and 8 is a proximity. A switch, 31 is a display monitor, 32 is an abnormal return button switch, 33 is a machine stop button switch, 34 is a setting / operation changeover switch, and 501a, 501b, and 501c are texts. 2 and 3, 1 is an image pickup means, 5 is an arrival detection means, 8 is a proximity switch, 101 is a body feeder, 102 is a rounding portion, 103 is an earing portion, and 104 and 106 are adhesive application portions. 105, 107 are back pasting portions, 108 is a cover feeder, 109 is a cover case portion, 501 is a text, and 502 is a cover.
[0022]
The imaging means 1 is a camera (imaging device) having an area sensor such as a CCD (charge coupled device) and an imaging optical system. The imaging unit 1 feeds the text 501 one by one from the text feeder 101 in the bookbinding machine that combines the text and the cover of the upper bookbinding, and then images the back of the text 501 and outputs an imaging signal. In the example shown in FIGS. 1, 2, and 3, the text 501 fed from the text feeder 101 is intermittently conveyed in a state where the text 501 is provided with a gap by the conveying means with a holder. The imaging means 1 of the body text gluing device performs imaging at a position corresponding to the downstream of the body feeder 101 and the upstream of the rounding unit 102.
[0023]
The illumination unit 2 illuminates the imaging area of the imaging unit 1. The illumination means 2 can be a ring-shaped fluorescent lamp, a metal halide lamp, a halogen lamp, a xenon lamp, or the like, or a well-known illuminating device in which an optical fiber or a reflecting mirror is combined therewith, and is not particularly limited. There may be a special condition in the place where the body text guru detection is performed, for example, fluctuation of outside light. Treatments such as shading and obtaining sufficient illuminance so as not to adversely affect imaging are natural design matters.
[0024]
The main body 3 is a part that inputs an image pickup signal of the image pickup means 1 and performs a calculation to determine pass / fail. The main body 3 can be configured by hardware and software of a data processing device such as a personal computer, a microcomputer, and a dedicated arithmetic device. As shown in FIG. 1, a display monitor 31, an abnormal return button switch 32, a machine stop button switch 33, a setting / operation changeover switch 34, etc. are attached to the panel of the main body 3. Details of the configuration and operation of the main body 3 will be described later.
[0025]
The alarm output means 4 inputs the quality determination data of the main body 3. Then, when the pass / fail judgment data indicates a defective product, that is, when a guru is detected, an alarm is output. The alarm output means 4 can be constituted by a buzzer and a relay circuit for turning on / off the power supplied to the buzzer.
[0026]
The arrival detection means 5 detects that the body 501 conveyed by the holding means-equipped conveying means has reached a predetermined position, and outputs an arrival signal. The predetermined position is usually a position where the text fits in the imaging area. The arrival detection means 5 can be constituted by a reflection type or transmission type optical switch having a light projecting part and a light receiving part.
[0027]
The imaging area setting unit 6 sets an imaging area in which the above-described illumination unit 2 illuminates and the imaging unit 1 performs imaging. In the example illustrated in FIG. 1, the imaging unit 1 performs imaging through a hole in the center of the ring of the illumination unit 2 having a ring-shaped fluorescent lamp, and the imaging unit 1 and the illumination unit 2 are integrated. It has become. The imaging area setting unit 6 supports the imaging unit 1 and the illumination unit 2 that are integrated with each other so that the imaging unit 1 and the illumination unit 2 can be moved to a predetermined position and can be fixed in a space above the conveyance unit with a holder. For example, the imaging area setting unit 6 includes a guide mechanism and a fixing mechanism that can move positions in the vertical direction and the transport direction.
[0028]
The operation input means 7 is a part where an operator performs input for operating the body text gluing device. It is mainly used for setting input such as a judgment area and a designated color.
[0029]
Here, a simple description will be given of a bookbinding machine (simply called a bookbinding machine) that combines the text of the upper bookbinding and the cover to which the text guru detection device of the present invention is applied. As described above, in the bookbinding machine shown in FIGS. 2 and 3, the bookbinding machine includes the body feeder 101, the rounding part 102, the earing part 103, the adhesive application parts 104 and 106, the back pasting parts 105 and 107, The front cover feeder 108 and the front cover case 109 are connected. The imaging means 1 of the body guru detection device is installed immediately before the rounding part 102.
[0030]
The body feeder 101 feeds the body 501 to the bookbinding machine. For example, the text 501 that has been finished with a three-way cutting machine is stacked on a pallet and carried to a bookbinding machine. The operator manually places a plurality of the texts 501 at the entrance of the text feeder 101. The body feeder 101 synchronizes with the operation of the bookbinding machine and separates the body text 501 overlapping at the entrance in synchronization with the operation of the bookbinding machine one by one. The body feeder 101 then feeds the body 501 to the bookbinding machine with the body 501 facing up so that it is suitable for processing in the bookbinding machine.
At this time, since the outside of the body 501 is mostly plain, it is difficult to determine the top / bottom direction of the body 501 from the appearance, and the direction may be opposite to the normal direction.
[0031]
The rounding unit 102 rounds the back of the text 501. The body 501 is rounded by mechanically pressing the back of the body 501 with a round mold (concave mold).
The ear protrusion 103 processes the rounded text 501 so that the back of the text 501 protrudes from the front and back sides of the text 501. The cross section of the back of the body 501 is shaped like a ginkgo leaf. The parts other than the back of the body 501 are fixed with a vise, and the shape of the ear is attached by swinging the back to the front and back sides of the body 501.
[0032]
The adhesive application units 104 and 106 apply the adhesive to the back of the text 501 that has been eared. Glue is used for the adhesive.
The back pasting portions 105 and 107 attach a cold chill to the back of the body 501 to which the adhesive is applied, and perform the back consolidation. These adhesive application and back pasting are usually performed a plurality of times. In the example shown in FIG. 3, it is performed twice, and in the back pasting, flower cloth is attached along the upper and lower roundness of the back side.
[0033]
The cover feeder 108 feeds the cover 502 to the cover cover 109. For example, the cover sheet 502 processed in another process is stacked at the entrance of the cover feeder 108 by the operator's manual work. Stacked cover sheets 502 are separated and fed one by one by the cover sheet feeder 108 in synchronization with the operation of the bookbinding machine.
[0034]
The cover case 109 bonds the outer side surfaces (both sides of the sheet) of the body 501 that have been back-stiffened to the inner side surfaces of the cover sheet 502. That is, a cover 502 is wrapped around the body 501. The cover sheet feeder 108 feeds the cover sheet 502 above the portion around the body 501. On the other hand, the body 501 is lifted upward by an elevator mechanism in the cover case 109, and an adhesive is applied to both sides of the turn. Further, it is lifted upward, and the body 501 and the cover 502 are combined. At this time, both outer side surfaces are pressed by the roller, and the adhesive application surface in the main body 501 and the inner side surfaces in the cover 502 are brought into close contact with each other for bonding.
[0035]
Next, a color mark indicating the direction of the text will be described. This color mark is printed (marked) on the back of the text. When the orientation of the text is correct, the image is taken by the imaging means 1 so that the color mark fits in the determination area in the captured image, and when the orientation is not correct, the color mark is removed from the determination area. By printing this color mark, even when the back pattern of the text is not suitable for detection, it is possible to detect the vertical error of the text with high reliability.
[0036]
This color mark is printed on the back of the text in the step of temporarily tightening the text after collating, stringing (or azimuth binding, etc.), and back leveling. FIG. 4 (A) shows the temporary hardening (lower hardening) process of the text. As shown in FIG. 4 (A), the back-balanced text is subjected to vibration on the regular board in (A-1) to align the back of the text. Next, in (A-2), an adhesive is applied to the back of the text. Next, in (A-3), the applied adhesive is heated and dried.
[0037]
Next, in (A-4), a color mark indicating the direction of the text is printed (marking). Next, in (A-5), the back of the text is re-leveled. Then, as shown in FIG. 4B, the text that has been temporarily consolidated (lower consolidated) is cut in three directions. The three-way cut body is the body 501 shown in FIG.
[0038]
In this way, the color mark is printed immediately after the text is fixed with the adhesive, so that the vertical direction of the text is fixed and the quality of the printed color mark is maintained, so that an appropriate color can be obtained. The mark can be obtained. The color of the color mark is preferably indigo or yellow. The indigo color mark has good detection sensitivity (S / N) in the image pickup means 1 and high reliability. The yellow color mark is inconspicuous even if ink penetrates from the back of the text.
[0039]
Examples of printing means that can be used for printing such color marks include printing means such as a system that jets ink by controlling on / off of compressed air, other ink jet systems, a stamp system, and a laser marker. Can do. In the above-described temporary compaction process, since the text is conveyed by a conveyor with a holder, the position of the text is detected by a photoelectric switch or the like, and printing is performed at a predetermined position on the back of the text in synchronization. To.
[0040]
Next, data processing in the text guru detection device of the present invention will be described. An example of the configuration of the data processing means in the text guru detection device of the present invention is shown in a block diagram in FIG. In FIG. 5, 1 is an imaging means, 2 is an illumination means, 4 is an alarm output means, 5 is an arrival detection means, 6 is an imaging area setting means, 8 is a proximity switch, 71 is a determination area setting means, and 72 is a designated color setting. , 301 is an A / D conversion means, 302 is an image storage means, 303 is a designated color area extracting means, 304 is a designated color area number counting means, 305 is a reference designated color area number storage means, and 306 is an inspection object designated color area. Number storage means, 307 is pass / fail judgment means, and 308 is stop signal output means.
[0041]
Further, the data processing process in the text guru detection device of the present invention is shown in the flow charts of FIGS. FIG. 6A is a flowchart of the entire data processing process in the text guru detection. The text guru detection process is roughly divided into a setting process in step S1 and an operation process in step S2. Yes. FIG. 6B shows a detailed process in the setting process in step S1, and FIG. 7 shows a detailed process in the operation process in step S2.
[0042]
Data processing in the text guru detection device of the present invention will be described based on FIG. 5, FIG. 6, and FIG. Already in the body feeder 101 of the bookbinding machine that combines the body text of the upper bookbinding and the cover, the text is fed one by one and transported below the imaging position in the imaging means 1 of the text guru detection device by the transporting means with holder. It shall be. First, in step S101 (imaging area setting) in the setting process, the operator sets the setting / operation switch. In addition, the imaging region setting unit 6 sets the imaging region by adjusting the positions of the imaging unit 1 and the illumination unit 2 so that an appropriate region in the back of the conveyed text is captured (FIG. 1 and its description). reference). The imaging area of the imaging means 1 is illuminated by the illumination means 2. At this time, the positional relationship with the arrival detection means 5 is considered, but the position of the arrival detection means 5 is also set as necessary.
[0043]
Next, in step S102 (reference screen registration), the arrival detection means 5 detects that the text being conveyed has reached the imaging region, and outputs an arrival signal. The proximity switch 8 outputs a synchronization signal synchronized with the operation of the bookbinding apparatus. The imaging means 1 inputs the arrival signal and the synchronization signal, and performs imaging in synchronization with the synchronization signal based on the arrival signal input, thereby imaging the spine of the body and outputting the imaging signal. An A / D conversion (analog-to-digital converting) unit 301 converts an imaging signal, which is an analog signal, into digital data and generates a captured image. The captured image is stored in the image storage unit 302. The operator inputs an instruction to display the captured image stored in the image storage unit 302 on the monitor 31 (see FIG. 1) of the main body 3 from the operation input unit 7, and there is a defect in the captured image, for example, the imaging range is inappropriate. , Whether or not there is an out of focus (out of focus), etc. If there are deficient points, repetitive imaging is performed after removing the deficiencies. If there are no deficiencies, go to the next step.
[0044]
Next, in step S103 (determination area setting), the operator sets a determination area based on the captured image displayed simultaneously on the monitor 31 and the determination area frame. That is, when the determination area frame is operated and an appropriate position and size are obtained, an instruction input for setting the determination area is performed from the operation input means 7. The determination area is filled with a pattern having a large area of one color, and when the text is turned in the opposite direction, the same color is not present, or a back area having a large difference in area even with the same color is appropriate. The determination area is set by the determination area setting means 71, and the data of the set determination area is stored by the determination area setting means 71.
[0045]
Next, in step S104 (specified color setting), the operator sets the specified color in the captured image inside the determination area frame displayed on the monitor 31. The designated color is the same color as the designated color when the text is turned in the opposite direction, or the color of the part of the pattern having a large area difference even if the same color exists. When the color mark is printed, the color of the color mark is appropriate, so the color of the color mark is set as the designated color. When the designated color is set, the number of pixels corresponding to the area of the designated color in the determination area, that is, the area of the designated color area is counted. This counting process is performed by the following steps. That is, first, when the determination area and the specified color are set, the specified color area is extracted by the specified color area extracting unit 303. Next, the number of designated color areas is counted by the designated color area number counting means 304. The number of designated color areas is stored in the reference designated color area number storage means 305. The operator can confirm the number of pixels in the designated color area and can be used as a reference for setting the designated color.
[0046]
Next, in step S105 (allowable range setting), the operator sets an allowable range of the number of pixels in the designated color region. The number of pixels in the designated color region changes every time an image is taken, even if it is a non-defective body due to subtle variations in the back pattern density and imaging conditions. The permissible range is to prevent this normal fluctuation from being erroneously determined as guru. However, if the allowable range is increased too much, an erroneous determination to be a non-defective product will occur even if it is a defective product text. Therefore, it is necessary to set an appropriate allowable range. The allowable range is equivalent to setting an upper limit value and a lower limit value for the number of pixels in the specified color area described above. The upper limit value and lower limit value are stored in the pass / fail judgment means 307.
[0047]
Next, in step S106 (operation preparation), the setting / operation changeover switch is set to operation. Check that the non-defective product judgment is performed in the gluing detector by flowing the text in the normal direction in the transporting means with a holder. Next, the main body is conveyed in the direction opposite to normal in the conveying means with a holding tool, and it is confirmed by an alarm or the like that a defective product is determined in the gluing detector. If there is an abnormality in this operation check, the setting process is repeated. If there is no abnormality, the process proceeds to the next step “operation”.
[0048]
Next, the operation of the bookbinding machine for combining the text of the upper bookbinding and the cover is started, and the text is transported by the transporting means with holder. In step S201 (arrival detection) in the driving process, the arrival detection means 5 keeps monitoring that the text reaches the predetermined position (S102), and the text gluing detection device is in a standby state. When it is detected that the text has reached a predetermined position, an arrival signal is output.
Next, in step S202 (imaging), the imaging means 1 images the back of the body in synchronization with the arrival signal. The imaging signal output by the imaging unit 1 is converted into digital data by the A / D conversion unit 301 to obtain a captured image.
Next, in step S <b> 203 (image storage), the captured image is stored in the image storage unit 302.
[0049]
Next, in step S204 (designated color area extraction), the designated color area extraction unit 303 extracts the designated color area from the determination area (S103) based on the designated color (S104).
Here, an example of a method for extracting the designated color region will be described. For example, an upper limit value and a lower limit value threshold are set for the primary color components RGB (red, green, blue) of the designated color. Then, the designated color region is defined as a set of pixels that satisfy all the threshold conditions. When brightness (brightness) changes even with the same color (hue), when extracting areas of the same color with different brightness, the threshold width between the upper limit value and the lower limit value is reduced in hue, and in brightness Enlarge. For example, for the RGB component, hue (r, g) and lightness (l) are calculated by the following formula 1, threshold values are set for hue (r, g) and lightness (l), and A designated color region is defined as a set of pixels that satisfy the condition.
[Expression 1]
l = R + G + B
r = R / (R + G + B)
g = G / (R + G + B)
[0050]
Next, in step S205 (counting the number of areas (areas)), the designated color area number counting means 304 counts the number of pixels of the designated color area and outputs the designated color area number. The number of designated color areas is stored in the detection target designated color area number storage means 306.
[0051]
Next, in step S206 (quality determination), the quality determination unit 307 stores the specified color area number of the reference image stored in the reference specified color area number storage unit 305 and the detection target specified color area number storage unit 306. Based on the number of designated color areas of the inspection target image and the acceptable range (upper limit value and lower limit value) stored in the pass / fail judgment means 307, the pass / fail judgment output of the text direction is performed. The pass / fail judgment output is input by the alarm output means 4 and the stop signal output means 308 as shown in FIG.
[0052]
The alarm output means 4 immediately outputs an alarm when the pass / fail judgment output is a defective product (guru). This alarm continues to be output unless the alarm is canceled by, for example, pressing the error recovery 32 button switch. On the other hand, when the pass / fail judgment output is a non-defective product, the state is kept as it is. That is, the alarm output is continued when there is an alarm output, and no alarm is output when there is no alarm output.
[0053]
The stop signal output means 308 inputs a pass / fail judgment output, and outputs a stop signal for stopping the operation of the bookbinding machine that combines the text of the upper bookbinding and the cover when the determination of defective products continues for a predetermined number of times. By stopping the operation of the bookbinding machine that merges the text of the upper bookbinding and the cover by this stop signal, it is possible to prevent the occurrence of a large number of defective products even in a situation where the operator cannot respond for a while.
[0054]
Next, in step S207 (end), it is determined whether or not to end the operation. For example, when the operator operates the machine stop button switch 33 to execute the machine stop, the operation data processing process shown in FIG. 6 is ended in this first step after the operation. If there is no such end instruction input, the process returns to step S201 described above and the subsequent processes are repeated.
[0055]
【The invention's effect】
According to body Guru detecting apparatus according to claim 1 of the present invention as described above, body Guru detecting device capable of detecting the top and bottom of the errors in the body with high reliability can be provided. Further, according to the text guru detection device according to claim 2 of the present invention, there is generally no change in the text in the subsequent steps, so that it is possible to completely prevent the text from being mistaken. In addition, if there is a text with an upside-down defect, it can be removed immediately after the subsequent backing process. Further, according to the text guru detection device according to claim 3 of the present invention, since the color mark is printed, even if the back pattern of the text is not suitable for detection, the text top and bottom error can be reliably detected. Can be detected. According to the text gluing detection apparatus of the fourth aspect of the present invention, the vertical direction of the text is determined, the quality of the printed color mark is maintained, and an appropriate color mark can be obtained. Also, according to the text guru detection device of the fifth aspect of the present invention, the indigo color mark has good detection sensitivity (S / N) and high reliability. The yellow color mark is inconspicuous even if ink penetrates from the back of the text. Further, according to the text guru detection device according to claim 6 of the present invention, since the imaging is performed based on the synchronization signal of the bookbinding machine, high synchronization accuracy can be obtained. In addition, since the arrival signal is assumed, an erroneous determination is avoided without performing imaging when there is no text due to idle driving or the like. According to the body Guru detecting apparatus according to claim 7 of the present invention, according to the body Guru detecting apparatus according to claim 8 configuration may also present invention can properly perform the imaging region, the body defective products When detected, an alarm is output. According to the text guru detection device of claim 9 of the present invention, the operation of the bookbinding machine is automatically stopped when a defective product of the text guru is detected.
[Brief description of the drawings]
FIG. 1 is a pictorial diagram showing an example of a configuration of a text gull detection device of the present invention.
FIG. 2 is a pictorial diagram showing an example of installation in a bookbinding machine that combines the text of the upper bookbinding and the cover.
FIG. 3 is a pictorial diagram showing an example of a processing process in a bookbinding machine that combines the text of the upper bookbinding and the cover.
FIG. 4 is an explanatory diagram of a color mark printing (A) and a three-way cutting step (B) in a temporary hardening (under-hardening) step of the text.
FIG. 5 is a block diagram showing an example of the configuration of data processing means in the text guru detection device of the present invention.
FIG. 6 is a flowchart (No. 1) showing a data processing process in the text guru detection device of the present invention.
FIG. 7 is a flow diagram (part 2) illustrating a data processing process in the text guru detection device of the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Image pickup means 2 Illumination means 3 Main body of text guru detection device 4 Alarm means 5 Arrival detection means 6 Imaging area setting means 7 Operation input means 8 Proximity switch 31 Display monitor 32 Abnormal return button switch 33 Machine stop button switch 34 Setting / operation switching Switch 101 Text feeder 102 Rounding part 103 Earing part 104, 106 Adhesive application part 105, 107 Back sticking part 108 Cover feeder 109 Covering part 301 A / D conversion means 302 Image storage means 302 Designated color area extraction means 304 Designation Color area number counting means 305 Reference designated color area number storage means 306 Inspection object designated color area number storage means 307 Pass / fail judgment means 308 Stop signal output means 501, 501a, 501b, 501c Text 502 Cover

Claims (9)

Imaging means for imaging the spine of the text of the upper bookbinding and outputting an imaging signal;
Illuminating means for illuminating the imaging area of the imaging means;
A / D conversion (analog-to-digital converting) means for inputting the imaging signal and converting it into digital data to obtain a captured image;
Determination area setting means for setting a determination area in the captured image;
Designated color setting means for setting a designated color from among display colors in the determination area;
A designated color area extracting means for extracting a designated color area from the determination area based on the designated color;
A designated color area number counting means for counting the number of pixels of the designated color area and outputting the designated color area number;
Compare the number of reference designated color areas, which is the number of designated color areas of the back as a judgment reference, and the number of inspection target designated color areas, which is the number of designated color areas of the spine as judgment targets, to determine whether the orientation of the text is good or bad Pass / fail judgment means for performing judgment output;
A body text gluing detection device characterized by comprising:   2. The text guru detection device according to claim 1, wherein the imaging is performed immediately before rounding the back of the text on the bookbinding machine that combines the text of the upper bookbinding and the cover. . 3. The text guru detection device according to claim 2 , wherein a color mark indicating a direction is printed on the back of the text, and the color mark is placed in the determination area when the direction is correct, and the direction is not correct. The image gluing detection apparatus is characterized in that the imaging is performed such that the color mark is removed from the determination area. 4. The body text gluing detection device according to claim 3, wherein the printing is performed immediately after temporary consolidation of fixing the back of the body text with an adhesive. 5. The text guru detection device according to claim 3, wherein a color of the color mark is indigo or yellow. 6. The text guru detection device according to claim 2 , wherein the text is carried on a carrying means with a holder synchronized with the bookbinding machine and outputs a synchronization signal indicating the synchronization. Signal output means, and arrival detection means for detecting that the text has reached a predetermined position and outputting a arrival signal, wherein the imaging means is synchronized with the synchronization signal based on the arrival signal. A guru detection device that performs the imaging.   7. The text guru detection device according to claim 1, further comprising an imaging area setting unit that sets the imaging area in which the illumination unit illuminates and the imaging unit performs imaging. apparatus.   The text guru detection device according to any one of claims 1 to 7, further comprising an alarm output means for inputting the pass / fail judgment output and outputting an alarm when the judgment is a defective product. . 9. A stop signal for outputting a stop signal for stopping the operation of the bookbinding machine when the good / bad determination output is input and the determination is a defective product, according to any one of claims 2 to 8. A body text gluing detection device comprising output means.

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