JP4173700B2 - Bookbinding bend inspection device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a bookbinding bending inspection apparatus for inspecting bending of a bookbinding top and the like.
[0002]
[Prior art]
In bookbinding, there is a type in which the three sides of the front edge (front edge) and the top and bottom are cut. The forehead is cut against the back and the top and bottom are cut parallel to each other.
[0003]
Conventionally, when inspecting the bending in the cutting direction of bookbinding, two spot sensors are arranged at the front and the rear in the conveyance direction. For example, when the bookbinding back is conveyed forward, the bending of the back and the fore edge is detected by two spot sensors.
[0004]
[Problems to be solved by the invention]
However, even if there is no bend in the bookbinding spine and fore edge, there may be a bend in the top and bottom. For example, the top and bottom may be bent and cut with respect to the back and forehead, resulting in a rhombus or parallelogram. Conventionally, such bookbinding could not be excluded as a non-standard product.
[0005]
SUMMARY OF THE INVENTION An object of the present invention is to provide a bookbinding bending inspection apparatus capable of inspecting bending of a bookbinding top and the like.
[0006]
[Means for Solving the Problems]
Examples of means for solving the problems of the present invention are as follows.
[0007]
(1) A bookbinding bending inspection apparatus for inspecting bookbinding (X) being conveyed in a predetermined conveyance direction (a), and specified by the position of a sensor having a predetermined technical significance and the detection width of the sensor The first sensor (14) and the second sensor (16) for detecting the position of one side (X1) of the bookbinding (X), the position of the sensor having a predetermined technical significance, A third sensor (18) and a fourth sensor (20) for inspecting the position of the other side (X2) of the bookbinding (X) , which is the position specified by the detection width of the sensor, are provided, and bookbinding ( A first sensor (14) and a second sensor (16) for detecting the position of one side (X1) of X) are provided at intervals in a direction perpendicular to the transport direction (a), and bookbinding (X ) The third sensor (18 for detecting the position of the other side (X2) ) And the fourth sensor (20) are provided at intervals in a direction parallel to the transport direction (a), and the third sensor (18) and the fourth sensor (20) are both constituted by laser sensors and are transported in the transport direction. The first sensor (14) and the second sensor (16) have a predetermined detection width in a direction perpendicular to (a) and can specify the position of the other side (X2) of the bookbinding (X). ) Is obtained from the signal obtained by the third sensor (18) and the fourth sensor (20), and the inclination (deviation) of the sky (X2) is obtained from the signals obtained by the third sensor (18) and the fourth sensor (20). The bending of the celestial (X2) is inspected by subtracting the inclination of the spine (X1) as an error from the inclination of the celestial (X2), and the bookbinding (X) being conveyed becomes the spine of the bookbinding (X). and even without bend to small, have vertical of the binding (X) is cleaved bent relative to the back and small Bookbinding bend test apparatus characterized by being configured to inspect whether.
[0008]
(2) The bookbinding bend inspection apparatus described above, wherein at least one of the first sensor (14) and the second sensor (16) is a spot sensor.
[0009]
(3) The bookbinding bend inspection apparatus described above, wherein at least one of the first sensor (14) and the second sensor (16) is constituted by a laser sensor.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
In a preferred embodiment of the present invention, bookbinding that is continuously conveyed one by one in a predetermined direction is inspected. For example, the bookbinding to be inspected is one in which the top and bottom are cut parallel to each other in the previous step and the fore edge (front edge) is cut parallel to the spine without bending .
[0011]
In a preferred embodiment of the present invention, two first and second sensors are provided for one side of bookbinding, and two third and fifth sensors are provided on the other side. Of the first to fourth sensors, the first sensor is a laser sensor, the second sensor is a spot sensor, and the third to fourth sensors are laser sensors.
[0012]
In another preferred embodiment of the present invention, the first sensor is a spot sensor, the second sensor is a laser sensor, and the third to fourth sensors are laser sensors.
[0013]
In still another preferred embodiment of the present invention, both the first sensor and the second sensor are spot sensors, and the third to fourth sensors are laser sensors.
[0014]
In yet another preferred embodiment of the invention, all four sensors are laser sensors.
[0015]
【Example】
Embodiments of the present invention will be described below with reference to the drawings.
[0016]
FIG. 1 is a conceptual diagram showing a main part of a bookbinding bending inspection apparatus according to the present invention.
[0017]
In this illustrated example, the vertical bending of the bookbinding (hereinafter referred to as workpiece X) to be inspected that is being conveyed in the flow direction a (conveying direction a) is inspected.
[0018]
In FIG. 1, the back X 1, the small edge X 3, the top X 2, and the ground X 4 of the work X are positioned on the front, rear, left, and right sides in the flow direction a, respectively, but this arrangement may be reversed on the left, right, top, bottom, top, side
[0019]
The inspection apparatus 10 has a conveyor (not shown) and conveys the workpiece X in the flow direction a.
[0020]
The inspection apparatus 10 has a frame 12 around the conveyor. A first laser sensor 14 and a second spot sensor 16 are arranged on the frame 12 at an interval in front of the flow direction a and in a direction perpendicular to the flow direction a (c-d line direction in the drawing). Note that the first laser sensor 14 and the second spot sensor indicate the positional relationship with the belt-like laser beam and the spot, respectively, and the entire configuration is not shown.
[0021]
The 1st laser sensor 14 is a sensor of the composition which detects the position of the target object which intercepts this using a beltlike laser beam. The band-shaped laser beam has a resolution parallel to the flow direction a, and the position of the spine X1 of the workpiece X can be specified within the region of the band-shaped laser beam. The first laser sensor 14 is connected to a calculator 22 (not shown in FIG. 1).
[0022]
The second spot sensor 16 is a sensor configured to detect the position of an object that blocks the predetermined spot. Any type of spot sensor can be used. The second spot sensor 16 is arranged at an interval to the right of the first laser sensor 14 in the drawing. A line (c-d line in the figure) connecting the center of the spot of the second spot sensor 16 and the center of the strip laser beam is perpendicular to the flow direction a. The second spot sensor can detect the position of the back X1 of the workpiece X at the spot position. The second spot sensor 16 is connected to a calculator 22 (not shown in FIG. 1).
[0023]
In the direction behind the first laser sensor 14 and the second spot sensor 16 and parallel to the flow direction a, the third laser sensor 18 and the fourth laser sensor 20 are arranged with a space therebetween. Lines passing through the centers of the strip laser beams of the third laser sensor 18 and the fourth laser sensor 20 (the ef line in the figure) are parallel to the flow direction a. In FIG. 1, the third laser sensor 18 and the fourth laser sensor 20 are shown in a positional relationship by a band-shaped laser beam, and the entire configuration is not shown.
[0024]
The 3rd laser sensor 18 and the 4th laser sensor 20 are sensors of the composition which detects the position of the target object which intercepts this using a beltlike laser beam. The band-shaped laser beam has a resolution perpendicular to the flow direction a, and the position of the top X2 of the workpiece X can be specified within the band-shaped laser beam region. The third laser sensor 18 and the fourth laser sensor 20 are connected to a calculator 22 (not shown in FIG. 1).
[0025]
An example of the arrangement relationship of the first to fourth sensors will be described.
[0026]
The center of the spot of the second spot sensor 16 is a base point A, and the intersection of the cd line and the ef line is a contact point B. It is assumed that the distance from the contact point B to the base point A and the distance from the contact point B to the center of the strip laser beam of the third laser sensor 18 are equal to m. The distance from the base point A to the center of the strip laser beam of the first laser sensor 14 and the distance from the center of the strip laser beam of the third laser sensor 18 to the center of the strip laser beam of the fourth laser sensor 20 are equally n. .
[0027]
If each sensor is arranged in this way, when the spine X1 of the workpiece X is in contact with the base point A, the inclination (vertical shift) of the spine X1 is detected by the third laser sensor and the fourth laser sensor. Appears as an error in the curve. As a result, the error range can be set in advance as a numerical value.
[0028]
FIG. 2 shows the connection relationship between the computer 22 and each sensor. The computer 22 is connected to the first laser sensor 14, the second spot sensor 16, the third laser sensor 18, and the fourth laser sensor 20. Detection signals detected by the sensors are transmitted to the computer 22. The calculator 22 calculates the positions of the back X1 and the top X2 of the workpiece X from each detection signal. A processing device (not shown) is connected to the computer 22 and determines the suitability of the work from the calculated work position and processes the work.
[0029]
An example of a procedure for inspecting the workpiece X will be described.
[0030]
The workpiece X is conveyed in the flow direction a. The spine X1 is assumed to be directed forward in the direction of travel by any mechanical means. The spine X <b> 1 contacts the second spot sensor 16. Detection signals of the first laser sensor 14, the third laser sensor 18, and the fourth laser sensor 20 when the spine X 1 is in contact with the second spot sensor 16 are obtained. From the signals obtained by the first laser sensor 14 and the second spot sensor 16, the inclination (deviation) of the spine X1 is obtained. From the signals obtained by the third laser sensor 18 and the fourth laser sensor 20, the inclination (deviation) of the sky X2 is obtained. The bending of the heaven X2 is inspected by subtracting the inclination of the spine X1 as an error from the inclination of the heaven X2.
[0031]
FIG. 3 shows another embodiment of the present invention. In addition, the same code | symbol is attached | subjected to the same member and the description is abbreviate | omitted.
[0032]
In the example shown in FIG. 3, the first sensor and the second sensor in the present invention are constituted by a first spot sensor 141 and a second laser sensor, respectively.
[0033]
An example of a procedure for inspecting the workpiece X will be described.
[0034]
The workpiece X is conveyed in the flow direction a. The spine X1 is assumed to be directed forward in the direction of travel by any mechanical means. The back X1 contacts the first spot sensor 141. The detection signals of the second laser sensor 161, the third laser sensor 18, and the fourth laser sensor 20 when the spine X1 is in contact with the first spot sensor 141 are obtained. From the signals obtained by the first spot sensor 141 and the second laser sensor 161, the inclination (deviation) of the spine X1 is obtained. From the signals obtained by the third laser sensor 18 and the fourth laser sensor 20, the inclination (deviation) of the sky X2 is obtained. The bending of the heaven X2 is inspected by subtracting the inclination of the spine X1 as an error from the inclination of the heaven X2.
[0035]
FIG. 4 shows still another embodiment of the present invention. In addition, the same code | symbol is attached | subjected to the same member and the description is abbreviate | omitted.
[0036]
In the embodiment shown in FIG. 4, the first sensor and the second sensor in the present invention are constituted by a first spot sensor 142 and a second spot sensor 162, respectively.
[0037]
An example of a procedure for inspecting the workpiece X will be described.
[0038]
The workpiece X is conveyed in the flow direction a. The spine X1 is assumed to be directed forward in the direction of travel by any mechanical means. It is assumed that the back X1 is in contact with the first spot sensor 142 and further in contact with the second spot sensor 162. Detection signals of the third laser sensor 18 and the fourth laser sensor 20 when the back X1 is in contact with the second spot sensor 162 are obtained. The inclination (displacement) of the spine X1 is obtained from the time lag and the conveyance speed when the workpiece X contacts the first spot sensor 142 and the second spot sensor 162. From the signals obtained by the third laser sensor 18 and the fourth laser sensor 20, the inclination (deviation) of the sky X2 is obtained. The bending of the heaven X2 is inspected by subtracting the inclination of the spine X1 as an error from the inclination of the heaven X2.
[0039]
In addition, even if the back X1 is in contact with the second spot sensor 162 and further in contact with the first spot sensor 142, the bending of the top X2 can be similarly examined.
[0040]
FIG. 5 shows still another embodiment of the present invention. In addition, the same code | symbol is attached | subjected to the same member and the description is abbreviate | omitted.
[0041]
In the example shown in FIG. 5, the first sensor and the second sensor in the present invention are configured as a first laser sensor 143 and a second laser sensor 163, respectively.
[0042]
An example of a procedure for inspecting the workpiece X will be described.
[0043]
The workpiece X is conveyed in the flow direction a. The spine X1 is assumed to be directed forward in the direction of travel by any mechanical means. It is assumed that the back X1 is located at the center of the belt-shaped laser beam of the first laser sensor 143. Detection signals of the second laser sensor 163, the third laser sensor 18, and the fourth laser sensor 20 when the spine X1 is positioned at the center of the belt-shaped laser beam of the first laser sensor 143 are obtained. From the signals obtained by the first laser sensor 143 and the second laser sensor 163, the inclination (deviation) of the spine X1 is obtained. From the signals obtained by the third laser sensor 18 and the fourth laser sensor 20, the inclination (deviation) of the sky X2 is obtained. The bending of the heaven X2 is inspected by subtracting the inclination of the spine X1 as an error from the inclination of the heaven X2.
[0044]
Note that when the spine X1 is positioned at the center of the second laser sensor 163, the bending of the sky X2 can be similarly examined even if a detection signal of another sensor is obtained.
[0045]
【The invention's effect】
According to the present invention, it is possible to inspect the bookbinding top and bottom with high accuracy.
[0046]
If a laser sensor is used for the first sensor and / or the second sensor, the top and bottom curvature can be inspected with higher accuracy.
[0047]
If a spot sensor is used for the first sensor and / or the second sensor, the apparatus can be configured at a lower cost.
[0048]
In addition, this invention is not limited to the above-mentioned Example. The bookbinding inspection method is not limited to that described with respect to the above-described embodiments. The arrangement configuration of the spot sensor and the laser sensor is arbitrary.
[Brief description of the drawings]
FIG. 1 is a schematic top view showing an example of a bookbinding bending inspection apparatus according to the present invention.
FIG. 2 is a conceptual diagram showing an example of a connection relationship between a computer and a sensor preferably used in the present invention.
FIG. 3 is a schematic top view showing another example of the bookbinding bending inspection apparatus according to the present invention.
FIG. 4 is a schematic top view showing still another example of the bookbinding bending inspection apparatus according to the present invention.
FIG. 5 is a schematic top view showing still another example of the bookbinding bending inspection apparatus according to the present invention.
[Explanation of symbols]
10 Bookbinding bending inspection device 12 Frame 14, 143 First laser sensor 141, 142 First spot sensor 16, 162 Second spot sensor 161, 163 Second laser sensor 18 Third laser sensor 20 Fourth laser sensor 22 Computer a Transport direction X Work X1 Back X2 Top X3 Small edge (Front small edge)
X4 ground

Claims (2)

A bookbinding bending inspection apparatus for inspecting bookbinding being conveyed in a predetermined conveyance direction,
A first sensor and a second sensor for detecting the position of the bookbinding spine are provided, and one of the first sensor and the second sensor is in a direction parallel to the sensor position and the predetermined conveyance direction of the sensor. A band-shaped laser beam that identifies the position of the bookbinding spine according to the detection width of the book, and the other of the first sensor and the second sensor is parallel to the position of the sensor and a predetermined conveyance direction of the sensor. A sensor using a band-shaped laser beam that identifies the position of the bookbinding spine according to the direction detection width, or a spot sensor that identifies the position of the bookbinding spine according to the position of the sensor;
A third sensor and a fourth sensor are provided for inspecting the position of the top of the bookbinding, which is a position specified by the position of the sensor and the detection width of the sensor,
The first sensor and the second sensor are provided at intervals in a direction perpendicular to the transport direction;
The third sensor and the fourth sensor are provided at intervals in a direction parallel to the transport direction, and both the third sensor and the fourth sensor are configured by laser sensors, and predetermined detection is performed in a direction perpendicular to the transport direction. It has a width and is configured so that the top position of the bookbinding can be specified,
A calculator is connected to the first, second, third and fourth sensors;
The calculator determines the inclination of the back relative to the direction perpendicular to the conveyance direction from the signals obtained by the first sensor and the second sensor, and from the signals obtained by the third sensor and the fourth sensor, seek heavenly tilt in the direction of the sensor and the detection width of the fourth sensor, by subtracting from the top of the slope back slope as an error, for the back of the binding being conveyed, and bent top of the bookbinding cutting Bookbinding bend inspection device characterized by inspecting whether or not it is done. A bookbinding bending inspection apparatus for inspecting bookbinding being conveyed in a predetermined conveyance direction,
A first sensor and a second sensor for detecting the position of the bookbinding spine are provided, and the first sensor and the second sensor are spot sensors that specify the position of the bookbinding spine according to the position of the sensor,
A third sensor and a fourth sensor are provided for inspecting the position of the top of the bookbinding, which is a position specified by the position of the sensor and the detection width of the sensor,
The first sensor and the second sensor are provided at intervals in a direction perpendicular to the transport direction;
The third sensor and the fourth sensor are provided at intervals in a direction parallel to the transport direction, and both the third sensor and the fourth sensor are configured by laser sensors, and predetermined detection is performed in a direction perpendicular to the transport direction. It has a width and is configured so that the top position of the bookbinding can be specified,
A calculator is connected to the first, second, third and fourth sensors;
Based on the signals obtained by the first sensor and the second sensor by the calculator, the back inclination is obtained from the time lag and the conveyance speed when the bookbinding contacts the first sensor and the second sensor, and the first The top of the bookbinding is bent with respect to the back of the bookbinding being carried by obtaining the top tilt from the signals obtained by the 3 sensors and the fourth sensor and subtracting the back tilt from the top tilt as an error. A bookbinding bending inspection apparatus characterized by inspecting whether or not it has been cut.

Images