JP4588912B2 - Yarn-binding bookbinding method and bookbinding apparatus - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a yarn-binding bookbinding method and a bookbinding apparatus for producing a yarn-bound book without thread omission or loosening.
[0002]
[Prior art]
Conventionally, wire binding and sewing binding using a thread are known as a method of binding the back portions of a printed book obtained by stacking and collating a plurality of signatures. The former is superior in terms of production efficiency, but since the wire is exposed from the booklet, careful consideration is required from the viewpoint of safety, and the nonflammable material is separated when collecting the booklet. There are disadvantages such as need to do. On the other hand, the latter does not have the disadvantages of the former and is used when binding a notebook, an infant book, or the like. In particular, in the case of a printing book that needs to ensure sufficient safety, such as an infant book, sewing binding (yarn binding) is more desirable than wire binding, and also from the viewpoint of building a recycling society. Binding binding has been reviewed.
[0003]
As shown in FIG. 5, the conventional yarn binding bookbinding apparatus stacks and collates a plurality of signatures S with the collating device 1 and binds the back portion thereof with the sewing device 3 and then prints the book. It is composed of an inlined apparatus that transports B to the post-processing apparatus that transports B by the transport apparatus 4 and bonds the cover of the book B with a binder.
[0004]
In the collating apparatus 1, a conveyor 1 a that supports and conveys the back side of a signature is conveyed by two rotating rollers 1 c. Each signature S stored in each signature storage unit 1a is discharged from each signature storage unit 1a and sent to the conveyor 1b. Each signature S is stacked one after another, is pressurized by the pressure roller 1 d and the rotation roller 1 c, and is conveyed to the sewing binding device 3. Reference numeral 2 denotes a signature detection unit.
[0005]
The sewing machine binding device 3 is provided with front-stage transport rollers 3a and 3b, rear-stage transport rollers 3e and 3f, and a sewing machine unit 3c and a sewing needle 3d at an intermediate portion between these transport rollers. The collated booklet is nipped by the front conveyance rollers 3a and 3b and conveyed to the sewing machine unit 3c. The sewing needle 3d starts to move up and down, and the back part of the booklet is moved from the top side to the ground side. The sewing machine is continuously stitched. Thereafter, the yarn is conveyed to the post-processing device 4 and a thread trimming process for the binding thread protruding from the top and bottom sides of the printed book B is performed. Thereafter, a cover or the like is provided on the printed book B.
[0006]
[Problems to be solved by the invention]
However, in the conventional yarn binding bookbinding apparatus, after binding the back of the booklet with the sewing machine, the cover is bonded to the booklet with the binder, but the binding yarn is being transported while the booklet is being conveyed. There is a possibility that the thread may be caught, the binding thread may come off, or the binding thread may be loosened. In the conventional yarn binding bookbinding apparatus, there is a disadvantage that the bookbinding book in which the above-described defect has occurred is transported to the post-processing step and bound.
[0007]
SUMMARY OF THE INVENTION The present invention has been made in view of the above-described problems, and an object of the present invention is to provide a yarn-binding method and apparatus for discharging and binding a binding book having a bad sewing binding.
[0008]
[Means for Solving the Problems]
The present invention achieves the above-mentioned problems, and the invention according to claim 1 is characterized in that a plurality of signatures are stacked and collated, and the back portion of the collated printing book is stitched and then stitched. The non-defective product and the defective product are detected, the printed book of the defective seam product is discharged , the quick-drying adhesive is applied onto the back binding thread of the non-defective product only, and the binding thread is fixed to the printing book. Then, the bookbinding method is characterized by binding through a post-processing step in which a cover is bonded to a printing book.
[0009]
In the invention of claim 1, after sewing the back portion of the collated printing book, fast-drying adhesive is applied and fixed to the binding yarn on the back portion of the printing book, and the binding yarn is fixed to the back portion. This is a bookbinding method in which bookbinding is carried out in a post-processing step in which a cover is bonded to a saddle-stitched book, and product defects such as missing pages do not occur. In addition, since the bookbinding method binds and binds the binding thread to the back of the printing book with a quick-drying adhesive, it eliminates thread omission in the cover bonding process and eliminates defects due to loose binding thread. .
[0010]
In the invention of claim 1 , after binding the back portion of the printing book, the non-defective product and the defective product of the stitches of the sewing binding are detected, the printed book of the defective seam is discharged, A quick-drying adhesive is applied onto the back binding thread of the book, and the adhesive is not adhered to the defective product, so that it can be reused .
[0012]
According to a second aspect of the present invention, there is provided a collating apparatus for stacking and collating a plurality of signatures, a sewing binding apparatus for binding a back portion of a printed book collated by the collating apparatus, and the sewing binding. A seam defect detection device for detecting good and defective seams by the device, an adhesive application device for applying and conveying an adhesive to the binding thread on the back of the booklet determined as a good product by the seam defect detection device, And a cooling device that cools the adhesive applied to the printing book that has passed through the glue application device.
[0013]
In the invention of claim 2 , after a plurality of signatures are stacked and collated by the collating device, the printing book is conveyed to the sewing binding device, the back portion thereof is stitched, and the seam defect detecting device detects the stitches. Non-defective and defective products are detected and transported to the glue applicator, where the glue applicator applies adhesive (for example, quick-drying adhesive) to the binding thread on the back of the booklet and passes through the cooling device. Then, the adhesive applied to the printing book is fixed, and the cover is bonded to the printing book with a hot-melt (hot-melting type) adhesive.
[0014]
According to a third aspect of the present invention, there is provided a discharge device that discharges a defective book of defective seams and conveys only non-defective products to the glue applying device by the defective seam detection device. The yarn-binding bookbinding apparatus described in 1.
[0015]
In the invention of claim 3, the discharge device that also serves as a conveyance path is a device that discharges defective prints and conveys only good products to the next process based on the determination of good products and defective products from the seam defect detector. In response to a defect detection signal from the preceding-stage stitch defect detection device, for example, the conveyance path is tilted downward, whereby a defective printing book can be discharged. The discharge mechanism for discharging the defective print book is a mechanism for discharging the defective print book by a jump mechanism that is different from the transfer path provided along the transfer path of the discharge mechanism as well as the transfer path. There may be.
[0016]
DETAILED DESCRIPTION OF THE INVENTION
DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of a yarn binding method and apparatus according to the present invention will be described below with reference to the drawings. FIG. 1 is a schematic side view showing an embodiment of the yarn binding and binding apparatus of the present invention. 2 to 4 are schematic side views showing the respective parts, FIG. 2 is a schematic side view showing the sewing device and the yarn cutting and removing device, and FIG. 3 is a schematic side view of the seam inspection and conveying device and the conveying and discharging device. FIG. 4 and FIG. 4 are schematic side views showing the glue transfer apparatus.
[0017]
As shown in FIG. 1, the yarn binding apparatus of the present embodiment includes a collating device 1 that is the same mechanism as the conventional one and a sewing machine binding device 3, and a yarn cutting and removing device 10 at a subsequent stage. A seam inspection and conveyance device 20, a conveyance and discharge device 40, a gluing conveyance device 50, and a cooling and conveyance device 70 that cools and solidifies the adhesive and conveys it to the next process are further provided. This is an in-line bookbinding apparatus that transports and binds to a post-processing step such as a cover case to be bonded or three-way cutting.
[0018]
As described above, the collating apparatus 1 is an apparatus that sequentially stacks and collates a plurality of signatures S and sequentially conveys the collated printing book to the sewing machine binding apparatus 3. In the collating apparatus 1, the conveyor 1b is rotated by two rotating rollers 1c, and the back side of the signature is supported by the conveyor 1b and conveyed. Each signature S is stored in each signature storage unit 1a, discharged from each signature storage unit 1a, and sent to the conveyor 1b. The signatures S are sequentially stacked, pressurized by the pressure roller 1d, and conveyed to the sewing machine binding device 3 as a printing book.
[0019]
The sewing machine binding device 3 is provided with front-stage transport rollers 3a and 3b, rear-stage transport rollers 3e and 3f, and a sewing machine unit 3c and a sewing needle 3d at an intermediate portion between these transport rollers. A portion where the booklet is conveyed from the sewing machine binding device 3 to the yarn cutting / removing device 10 will be described with reference to FIG. 2. The booklet is sandwiched between the front-stage conveyance rollers 3a and 3b and straddles the saddle 3g. Then, the sewing needle 3d starts to move up and down, and the back of the printing book is continuously bound from the top side to the ground side. The printing book is nipped between the subsequent conveyance rollers 3e and 3f and conveyed from the sewing machine binding device 3 to the yarn cutting and removing device 10. The yarn cutting / removing device 10 is a device that cuts and collects the yarn at a place other than the printing book.
[0020]
In the yarn cutting / removing device 10, a booklet detector 11 is provided at a loading portion of the booklet, and a suction cutting machine 12 that sucks and cuts excess yarn is provided. The booklet detector 11 detects the booklet. Then, the suction device 12c is activated to suck air from the suction port 12a, whereby the excess yarn is sucked and cut. The cut yarn is sucked and stored in the yarn collecting unit 12b. The printing book from which the excess yarn has been cut is sandwiched between the conveying roller 13 and the pressing roller 14, the conveying roller 21 and the pressing roller 22, and conveyed to the seam inspection conveying device 20.
[0021]
The seam inspection and conveyance device 20 includes a conveyance mechanism that sandwiches a printing book between a conveyance roller 21 and a pressure roller 14, and a seam inspection device 30 that includes a stitch quality determination device 31, a camera 32, and the like. The quality of the seam of the book B is determined and conveyed to the conveying / discharging device 40. For example, the seam quality determination device 31 will be described with reference to FIG. 3. The transport mechanism is further provided with a saddle 23, a V-shaped saddle 24, and the seam inspection device 30 is a seam quality determination device such as a computer. 31, a camera 32, a lighting device 33, and sensors 34 and 35 for detecting the top of the printing book B are provided. The printing book B is transported in the direction of arrow A by the transport mechanism, and the printing device B is printed by the lighting device 33. The sewing thread T on the back of B is illuminated and photographed by the camera 32. The photographed image is input to the seam quality determination device 31 and subjected to image processing to determine a defective product and a non-defective product in which thread binding defects (for example, thread skipping, looseness, or thread omission failure) have occurred, and the thread When a binding failure is detected, a failure detection signal is transmitted to control the next-stage transport / discharge device 40.
[0022]
By the way, to determine the defect such as yarn skipping, binding thread looseness, or thread omission, prepare a thread containing fluorescent paint in the binding thread, bind the back of the booklet with yarn, bind ultraviolet rays from the lighting device 33 to the back. The fluorescent light emitted from the binding thread containing the fluorescent paint is received by the camera 32 (CCD camera or the like). The image is binarized, and a defect such as yarn skipping, binding yarn loosening, or yarn omission is determined from the ratio.
[0023]
The conveyance / discharge device 40 is a discharge mechanism that also functions as a conveyance path. The conveyance belt 42 is rotated by the rotation of the apparatus rotation rollers 43 and 44, and the conveyance belt 42 is detected by a defect detection signal from the stitch quality determination device 31. A discharge mechanism 45 that rotates downward from the horizontal direction and discharges defective products is provided. The discharge mechanism 45 operates in synchronization with the defect detection signal, so that the non-defective product and the defective copy B can be separated. The non-defective book B is transported to the glue transfer device 50. The transport and discharge device 40 is not limited to this form, and is a transport path for a booklet and a discharge mechanism that discharges defective products. The defective print book may be discharged by a discharge mechanism provided by a jump mechanism different from the conveyance path.
[0024]
The glued conveying device 50 supports a conveying belt 51 that is rotated by rotating rollers 52 and 53, and stores a conveying mechanism including a saddle 4 that supports the back side of the printing book B, and a quick-drying adhesive. And a glue applying device 62 including the storage container 61. As shown in FIG. 4, the glue transfer apparatus 50 transports the printing book B across the conveyor belt 51, detects the passage of the printing book B upside down by the sensors 63 and 64, and applies the glue application apparatus 62. Then, the adhesive is discharged from the nozzles onto the binding thread on the back of the book B, and conveyed to the forced cooling device 70 at the next stage.
[0025]
The back of the book B is detected by the sensor 63 sequentially detecting the passage of the top and the ground side of the book B and the sensor 64 prints the adhesive from the nozzle at the timing when the top of the book B is detected. The discharge of the binding on the back of the book B is started, and when a predetermined time has elapsed from the time when the top side of the book B is passed by the sensor 63, the discharge of the adhesive is stopped to ensure the printing of the book B Adhesive can be sprayed on the binding thread on the back. The timing for applying the adhesive can be calculated by inputting a passing signal from each sensor to the gluing control device 65 and performing arithmetic processing. This timing setting has various setting methods and is not limited to the above.
[0026]
The forced cooling and conveying device 70 is applied with a conveying mechanism including rotating rollers 72 and 73 that rotate the conveying conveyor 71 and a saddle 74 that supports the conveying conveyor 71 and supports the back side of the back of the printing book B. And a forced cooling device 80 for forcibly cooling the adhesive. The printing book B in which the adhesive is attached to the back binding thread of the printing book B is a process in which the adhesive is solidified by being forcibly cooled in the conveying process. The printing book B with the adhesive solidified is conveyed to a post-processing step. In the post-processing step, the printing book B is rotated in a predetermined direction, for example, 90 degrees, aligned in one direction, and a predetermined amount of the printing book is collected and conveyed to the cover wrapping process to be bound.
[0027]
As described above, in the yarn binding bookbinding method using the yarn binding bookbinding apparatus, a plurality of signatures are stacked and collated in the collating apparatus 1, and the back portion of the printing book collated by the sewing machine binding apparatus 3 is stitched. After that, the seam inspection / conveyance device 20 detects the non-defective product and the defective product of the stitches of the sewing stitches, and the conveyance / discharge device 40 discharges the printed book of the defective seam product, and conveys the non-defective product only by glue. A quick-drying adhesive is applied to the binding thread on the back of a good quality booklet by conveying to the apparatus 50, and the adhesive applied to the binding thread is solidified by the forced cooling conveying device 70, and the back of the printing book This is a yarn binding bookbinding method in which binding is performed through a post-processing step such as a cover wrapping step in which the binding yarn is fixed to the print book and then the cover is adhered to the printing book with a hot melt (hot melt type) adhesive.
[0028]
Further, in the process of being transported from the sewing device 3 to the seam inspection / conveyance device 20, the binding thread (remaining yarn) protruding from the top / bottom side of the back of the booklet is cut by the yarn cutting / removing device 10 and the seam inspection is performed. It is transported to the transport device 20.
[0029]
【The invention's effect】
As described above, according to the present invention, there is an advantage that product defects such as missing pages are hardly generated after bookbinding. In addition, the bookbinding method is to bind and fix the binding thread to the back of the printing book with a quick-drying adhesive, thereby preventing the occurrence of defects due to thread omission in the cover wrapping process or loosening of the binding thread. There is an advantage that can be.
[0030]
Further, according to the present invention, based on the defect detection signal from the stitch defect detection device in the previous stage of the conveying and discharging device, for example, the defective printing book can be discharged by tilting the conveying path downward, and only good products There is an advantage that booklet can be bound to the cover cover process.
[Brief description of the drawings]
FIG. 1 is a schematic side view showing an embodiment of a yarn binding and binding apparatus of the present invention.
FIG. 2 is a schematic side view showing the sewing binding device and the yarn cutting / removing device of the present embodiment.
FIG. 3 is a schematic side view of a seam defect detection device and a discharge device according to the present embodiment.
FIG. 4 is a schematic side view showing the pasting and conveying apparatus of the present embodiment.
FIG. 5 is a schematic side view showing an example of a conventional yarn-bound bookbinding apparatus.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Collating device 3 Sewing machine binding device 10 Thread cutting removal device 12 Suction cutting machine 20 Seam inspection conveyance device 30 Seam inspection device 31 Seam quality determination device 32 Camera 33 Illumination device 40 Conveying / discharging device 45 Discharging mechanism 50 Conveying device 60 with glue Glue application device 61 Storage container 62 Glue application device 70 Forced cooling conveyance device 80 Forced cooling device

Claims (3)

After stacking a plurality of signatures and collating them, the back of the collated booklet is bound with a sewing machine, the good and defective stitches of the sewing binding are detected, and the defective booklet is ejected. It is characterized in that a fast-drying adhesive is applied onto the back binding thread of a non-defective booklet and the binding thread is fixed to the booklet, and then bound through a post-processing step in which a cover is bonded to the booklet. Yarn-bound bookbinding method. A collating device that stacks and collates a plurality of signatures, a sewing device that stitches the back of a printed book that has been collated by the collating device, and a non-defective product and a defective product that are stitched by the sewing device. A seam defect detecting device for detecting a seam, a glue applying device for applying an adhesive to a binding thread on the back of a printing book determined to be a non-defective product by the seam defect detecting device, and a printing book that has passed through the glue applying device. And a cooling device for cooling the adhesive applied to the yarn binding device . 3. The yarn binding and binding apparatus according to claim 2, further comprising: a discharge device that discharges a defective book of defective seams by the seam defect detection device and conveys only good products to the glue application device .

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