JPS6117725B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a paper input device for transferring the contents of a book from a collating machine to a bookbinding machine.

A perfect binding machine collects the folded sheets one by one, cuts off the spine, applies adhesive, and attaches the cover.All of these steps seem to be performed automatically. It is configured. 1st
The figure is a plan view showing an outline of this type of perfect binding machine, and FIG. 2 is a perspective view as well. To explain this with reference to the figure, this bookbinding machine has a chain 2 stretched between sprockets 1 at both ends of the machine base, and a large number of clamps 3 arranged at regular intervals.
The bookbinding is performed while the paper is circulated, and the booklet feeding device and the cover feeding device 5 are provided at both ends of the machine in the longitudinal direction, and the bookbinding device and the cover feeding device 5 are arranged in the processing process according to the circulation direction of the chain 2. It is composed of various devices. Each of these devices holds the contents of the book excluding the cover (hereinafter referred to as the middle book) with a clamp 3.
A ruler 6 for determining the position of the book, a cutter 7 for cutting the spine of the book, a gluing device 8 for applying glue to the cut part,
A gauze tensioning device 9 for reinforcing the binding section with gauze, a cover registering device 10 for supplying the cover and regulating the correct position relative to the booklet, a press device 11 for attaching the cover to the booklet, and a paper discharge device for ejecting the product. They are arranged in the order of 12.

The perfect binding machine configured in this way not only performs the entire process from supplying the booklet to ejecting the booklet as described above, but also performs the process of temporarily attaching the spine of the booklet with glue (hereinafter referred to as saddle stitching). It is used for a variety of purposes, such as performing only the cover wrapping process, which involves attaching a cover to a saddle-stitched book. Depending on the purpose of each of these processes, the booklet loading device 4, cover feeding device 5, and paper ejecting device 12 are automated, and a collating machine, cutting machine, etc. are also installed to integrate them into the line. They are often integrated and automated, thereby significantly improving the productivity of bookbinding machines.

Therefore, an outline of a conventional sheet loading device equipped with a collating machine as a general book loading device for this perfect binding machine will be explained with reference to Fig. 3.
3. A collating machine 15 is installed in the front part of the paper input device 14, which arranges the signatures for one book in a predetermined order. Therefore, a clamp 3 is provided which runs in the direction indicated by arrow A in the figure. A paper input chain 16 that runs in the direction shown by arrow B in the figure is stretched over the paper input device 14 provided between the collating machine 15 and the clamp 3. Several pusher pins 17 are arranged at regular intervals. Due to the mechanism of the clamp 3, the book blocks 1 supplied from the collating machine 15 are
8 has to be fed into the clamp 3 from below, so there is a difference between the height of the book traveling height of the collating machine 15 and the clamp 3. Therefore, the running surface of the paper input chain 16 consists of a horizontal part and an inclined part, and the guide for the booklet 18 also follows the running surface of the paper input chain 16 by a horizontal guide 19 and an inclined guide 20. It is structured as follows. Then, from the collating machine 15, the horizontal guide 19
The book 18 that has been sent upward is transferred to the paper input chain 16.
As it travels, its back is pushed by the pusher pin 17, and while it is being conveyed on the inclined guide 20, it is sent above it to the clamp 3 that travels in synchronization with this, and the clamping plate of the clamp 3 is It operates to clamp the book block 18, and the bookbinding steps described above are started.

However, in the conventional paper input device configured in this way, the paper input device 14 is connected from the collating machine 15 to the paper input device 14.
The tip of the book block 18 fed into the inclined guide 2
If the inclination angle of the inclination guide 20 is steep when reaching the starting point of 0, not only will a large resistance force act on the book block 18, but also a linear refraction will occur when transitioning from horizontal running to inclined running. Nakamoto 18's posture suddenly changes in order to make the movement
This often causes the paper to dance and disturb the alignment of the signatures. Furthermore, when the roughly central part of the booklet 18 reaches the end of the inclined guide 20, the booklet 18 is once again suddenly changed in posture due to the linear bending with the horizontal running section of the bookbinding machine 13, and begins to dance. However, the alignment of signatures is disturbed. The maximum inclination angle at which the book blocks 18 do not move is 15 degrees, and when processing 6,000 books per hour, the angle must be 12 degrees or less. Furthermore, in order to further increase the speed, this angle of inclination must be made smaller and smaller. Along with this, the total length of the paper loading device becomes longer, which not only requires a large floor area for machine installation, but also by reducing the angle of inclination, the upper end of the booklet 18 is inserted into the clamp 3. Due to the horizontal direction of the clamp 3, it was necessary to take a long distance from when the lower end was completely clamped by the clamp 3.

That is, as shown in FIG.
The clamp 3, which has finished discharging the paper and is now empty, continues to run and, after circling the semicircular arc around the sprocket 1, must start running in a straight line before paper input by the paper input device 4 can begin. However, as mentioned above, if the inclination angle is made small, the length of the clamp 3 will increase from 3 to 3 from the time the upper end corner of the booklet 18 starts to engage the clamp 3 until the clamp 3 finishes clamping it completely. It must travel 4 clamp pitches. In other words, it takes 3 to 4 clamps on the linear traveling section to feed the paper, and the number of clamps on the paper discharge device 12 side needs to be increased by the same number, so as a result, it takes 6 to 4 clamps to feed the paper. There was a problem that ~8 clamps were wasted and the efficiency was poor considering the large number of clamps. Also, for paper entry, 6
If ~8 clamps are required, if you add the number of clamps that require other processes to this, automatic paper loading will not be possible unless the machine has at least 20 clamps.For example, in the case of a bookbinding machine with 14 clamps, it is unavoidable. Paper input was done manually.

Therefore, if the inclination angle of the paper input device 14 is made slightly larger in order to reduce the number of clamps, the booklet 18 that is only collated but not saddle-stitched will move as described above. This disturbs the alignment of the signatures and causes what is called misregistration. Therefore, in order to prevent this, a lightning vibrator is provided on the inclined guide 20, or a ruler plate is provided on the straight running part of the clamp 3 to apply frictional resistance to the lower end of the book block 18 and align the book block 18. However, in both cases, it was extremely difficult to completely align the signatures as they would become disarrayed. Therefore, in order to increase the speed of the paper input device, it has been necessary to provide a separate saddle stitching process, input the saddle-stitched booklet into a bookbinding machine, and use the bookbinding machine as a cover wrapping machine. In this case as well, the speed cannot be increased due to the angle of inclination of the paper input device between the collating machine and the saddle stitching machine.
It was impossible to increase the speed by connecting this to a bookbinding machine.

The present invention was made in view of the above points, and includes a conveyance chain that conveys book blocks in a horizontal direction,
At the end of the conveyance, a lifting chain is provided which lifts up the book blocks in the vertical direction and aligns the book blocks lifted and conveyed into the clamp, thereby preventing disturbances in alignment of the book blocks during conveyance and paper input. The present invention provides a sheet feeding device for a bookbinding machine that improves the registration accuracy of booklets and makes it possible to input sheets for bookbinding without saddle stitching and to make the bookbinding machine more compact and faster.

Hereinafter, its configuration and the like will be explained in detail with reference to embodiments shown in the drawings.

4 to 6 show the paper input device according to the present invention, FIG. 4 is a plan view thereof, FIG. 5 is a plan view of the clamp, and FIG. 6 is a front view of the escalating pin. This embodiment shows an example in which the present invention is implemented in a device that supplies booklets without saddle stitches collated by a collating machine to a perfect binding machine. This is a collating machine that arranges the signatures of one book in a predetermined order. A paper input device 22 according to the present invention is installed at a rear stage of the collating machine 21, and a perfect binding machine shown with a clamp 23, which is a part of the paper input device 22, is installed at a rear stage of the paper input device 22. is installed. A plurality of clamps 23 are arranged at regular intervals on a chain 24 running above the paper input device 22, and the details thereof are shown in FIG.
A clamp main body 23a is attached to the missing link part except for a few links of No. 4, a guide bar 23b is slidably supported on both ends of the clamp main body 23a, and a guide bar 23b is fixed to one end of the guide bar 23b. A base plate 23c is fixed to the other end of the guide bar 23b and reciprocates with the base plate 23c by a cam 25.
3d. Then, as described later, from below the clamp 23, the clamp body 23a is
The book block 26 supplied between the clamping plate 23d and the clamping plate 23d is clamped by the movement of the clamping plate 23, and the clamp 23 moves in the direction shown by arrow A in the figure. That is, the clamp 23 rotates in a linear motion above the starting end of the paper input device 22, and travels sequentially at regular intervals.

Two sprockets 27 are provided at the starting end of the paper input device 22, and a chain 28 is stretched between the sprockets 27 and a sprocket (not shown) provided on the collating machine 21. Further, a ruler plate 29 is provided below adjacent to the chain 28 and extends parallel to the chain 28 to the center of the paper input device 22 . The book blocks 26 are arranged at regular intervals on the chain 28.
The paper is pushed by the pusher pin 30 traveling together with the paper and discharged onto the ruler plate 29 to the outside of the collating machine 21.
31 is rotationally driven by a sprocket 27 via a bevel gear 32 to move the book block 26 into the groove 3 of the ruler plate 29.
This is a side roller that guides you to 3.

A conveyance chain 34 is stretched over the other thread of the sprocket 27. This conveyance chain 34 includes a lower horizontal running section 34a extending to the upper end running section of the chain 28, and an upper horizontal running section 3 parallel to the lower end of the clamp 23 running.
4b, and an upward running section 34c that connects these running sections 34a and 34b, and is formed in an endless shape. The conveyance chain 34 connects the sprocket 27 and the sprocket 3 at the end of the paper input device 22.
5. It is stretched between the sprocket 36 above it and the sprockets 37 and 38 at both ends of the upper horizontal running section 34b, and a direction changing sprocket 39 and a sprocket 36 are installed at the end of the lower horizontal running section 34a.
A direction changing sprocket 40 is provided between and 37, respectively. And this conveyance chain 34
is rotationally driven by a driving shaft 41 to rotate in the direction shown by arrow C in the figure, and a plurality of pusher pins 3 similar to those described above are arranged at regular intervals.
The rear end surface of the book block 26 is transferred to the conveyor chain 34 by
As the book travels, it is pressed in the horizontal direction to transport the book block 26 taken over from the chain 28 of the collating machine 21.

Three lifting chains 42, 43, 44 are stretched in the running wheels of the conveyance chain 34 configured in this way, and these lifting chains 42, 4
3 and 44 are lifting running parts 42a and 43 parallel to the upward running part 34c of the conveyance chain 34, respectively.
Horizontal running parts 42b, 43b, 44 that are close to and parallel to the upper horizontal running part 34b, similar to a and 44a.
b, and is formed in an endless shape. In addition, these three lifting chains 42, 43, and 44 are arranged in parallel orthogonally to the running direction of the clamp 23 in the horizontal running section, and furthermore, in the lifting running section, the standard dimensions of the book block 26 are satisfied. They are arranged in parallel in the running direction of the clamp 23 with an interval between them. The lifting chain 42 includes a sprocket 45 on the driving shaft 41, a sprocket 46 above it, a direction changing sprocket 47, sprockets 48 and 49 at both ends of the horizontal running section 42b, and a sprocket 5 at the lower end.
It is suspended at 0. Also, the sprocket 48
is formed into three threads, and the lifting chain 43 is connected to this sprocket 48 and sprockets 51, 5.
2, 53, 54, and the lifting chain 44 has a sprocket 48, a sprocket 55, 56,
57 is suspended. Therefore, these lifting chains 42, 43, 44 are rotationally driven by the driving shaft 41 and rotate in the direction shown by arrow D in the figure at the same speed as the conveying chain 34.

Each of the lifting chains 42, 43, and 44 is provided with a plurality of escalating pins 58 shown enlarged in FIG. 6 at regular intervals. This escalation pin 58 is formed by a pin 58a fixed to a link 59 of the lifting chains 42, 43, 44, and a rotary pipe 58b rotatably mounted on the pin 58a. On the other hand, below the horizontal traveling path of the escalating pin 58, the sprockets 48, 55, 5
Pulleys 59, 60, facing 1, 49, respectively
61 and 62 are provided, among which pulley 5
9 rotates the sprocket 48 coaxially. Belts 63, 64, 65 are stretched around these pulleys 59, 60, 61, 62. The escalating pin 58 is connected to the lifting chains 42, 4.
This belt 63, 6 runs together with 3, 44.
When passing over 4,65, the rotating pipe 5
The circumferential surface of the large diameter portion 58c of 8b is the belt 63, 6
4 and 65, the frictional force causes it to rotate in the direction shown by arrow E in the figure. With this configuration, the escalating pin 58 supports the lower end surface of the book block 26 transported by the transport chain 34 at the transport terminal end, and also supports the upward movement of the lifting chains 42, 43, 44. Therefore, the book block 26 is lifted up and conveyed and supplied to the clamp 23 from below. Further, the escalating pin 58 rotates in the horizontal traveling portions 42b, 43b, 44b,
The guide bar 23b at the rear end of the clamp 23 is pressed against the book block 26 placed on the rotary pipe 58b.
The dashed line outside the travel locus of the lifting chains 42, 43, 44 is the travel locus of the escalating pin 58, and the rectangular chain line on the booklet 26 indicates the minimum size of the booklet. It shows. 6
Reference numeral 6 denotes a ruler plate on the exit side that provides resistance to the lower end surface of the book block 26 and realigns it.

The operation of the paper input device 22 configured as above will be explained. Book 2 collated by collating machine 21
6 is pushed and discharged by the pusher pin 30 of the chain 28, and is taken over by the conveyance chain 34. Then, as the conveyor chain 34 runs, the book block 26 is pressed by the pusher pin 30 and is pushed against the ruler plate 2.
9. On the other hand, a clamp 23 is running above the paper input device 22 with a slightly slower phase than the book block 26 . When the book block 26 reaches the terminal end of the lower horizontal traveling section 34a of the conveyance chain 34, the book block 26 coincides with this by detouring from below and ascending the three lifting chains 42, 43, 44. is supported and captured by the escalating pin 58 of. Then, the book block 26 is lifted up and conveyed while its lower end surface and rear end surface are captured by the escalating pin 58 in the vertical direction or by the pusher pin 30 in the horizontal direction. Since the time when the book block 26 reaches the end of this lifting and conveyance and the time when the clamp 23 passes are adjusted in advance, the book block 26 is fed from below into the clamp 23 with the clamping plate 23d open. In the horizontal running section from when the book block 26 is inserted until the clamping plate 23d is closed and clamps the book block 26, the rotating pipe 58b of the escalating pin 58 is connected to the belts 63, 6
4 and 65, the book block 26 whose lower end surface is supported on this rotary pipe 58b
is the opposite direction to the running direction of the escalating pin 58,
In other words, the clamp 23 moves toward the rear guide bar 23b, thereby causing the book block 26 to move toward the guide bar 23b.
The registers of the signatures are aligned until they come into contact with 3b. Furthermore, frictional resistance is applied to the lower end surface of the book block 26 by the ruler plate 66, and after it is pressed against the guide bar 23b and the register is again aligned, the clamping plate 23d is closed and the book block 26 is clamped by the clamp 23.

In the paper loading operation of the booklet 26 described above, the booklet 26 remains horizontal from the beginning until it is held by the clamps 23 after leaving the collating machine 21 without tilting. Since the alignment of the signatures is not disturbed and is further aligned by the rotation of the escalating pin 58, they are held in the clamps 23 in a completely aligned state, and the registration accuracy of the book block 26 is extremely good. By increasing this alignment effect, it is possible to shorten the length of the ruler plate 66 that was conventionally provided for alignment. In addition, there is almost no friction or resistance in the paper entry path, so paper jams do not occur. Furthermore, when compared to conventional paper feeding devices, the steeper inclination angle reduces the straight-line travel distance of the clamp 23 required for paper feeding, resulting in a smaller machine and a reduction in the installation floor space of the machine. In addition, in conventional bookbinding machines, where the straight running portion of the clamps 23 used for paper insertion required 6 to 8 clamps on both sides as described above, automatic paper feeding is not possible unless the machine has 20 or more clamps. However, if the paper feeding device of the present invention is used, the clamp 2 used for paper feeding can be saved.
Since only one clamp is required for the straight running section of 3, automatic paper loading is possible even in a bookbinding machine with a 14 clamp configuration, and even small-scale users can be provided with an automatic paper loading bookbinding machine.

In addition, in this embodiment, an example was shown in which the paper input device according to the present invention was implemented as a paper input device for booklets from a collating machine to a perfect binding machine, but the machine on the supply side is not a collating machine. Other machines such as cutting machines may be used,
The machine on the receiving side may be any machine that uses a clamp, such as a saddle stitcher.

As is clear from the above description, according to the present invention, in the paper input device of a bookbinding machine, a conveyance chain horizontally conveys the book blocks supplied from a collating machine, etc. By providing a lifting chain that lifts up the stack and aligns the stacked books that have been lifted and conveyed into the clamp, the stacked books are always kept in a horizontal state and do not move while being transported and loaded. Therefore, the alignment of the signatures is not disturbed, and it is possible to insert the book blocks with extremely high register accuracy. In addition, since the paper feeding distance is shortened, the installation floor area of the machine can be reduced, and automatic paper feeding is possible even in bookbinding machines with a small number of clamps, which is extremely effective.

[Brief explanation of the drawing]

Fig. 1 is a schematic plan view of a perfect binding machine, Fig. 2 is a perspective view, Fig. 3 is a front view of a paper input device of a conventional bookbinding machine, and Figs. 4 to 6 are bookbinding according to the present invention. 4A is a plan view thereof, FIG. 4B is a front view thereof, FIG. 5 is a plan view of the clamp, and FIG. 6 is a front view of the escalating pin. 22...paper input device, 23...clamp, 23b
... Guide bar, 26 ... Middle book, 30 ... Pusher pin, 34 ... Conveyance chain, 34a ... Lower horizontal running section, 34b ... Upper horizontal running section, 34c
...Upward strike section, 42, 43, 44... Lifting chain, 42a, 43a, 44a... Lifting traveling section,
42b, 43b, 44b... horizontal running part, 58...
…Escalate pin.

Claims (1)

[Scope of Claims] 1. An endless conveyance chain comprising a lower horizontal running section, an upper horizontal running section along the lower end of the clamp running above the lower running section, and an upward running section connecting these running sections; The horizontal running section includes a lifting running section that is suspended within the running wheels of the conveyance chain and parallel to the upward running section, and a horizontal running section that is close to and parallel to the upper horizontal running section. A plurality of lifting chains are provided in parallel perpendicular to the running direction, and the lifting chains are parallel to each other in the running direction of the clamps in the lifting running section. A plurality of pusher pins are provided at regular intervals to press the booklet in the horizontal direction as the conveyor chain runs, and each of the plurality of lifting chains holds the lower end of the booklet conveyed through the lower horizontal running section. A paper input device for a bookbinding machine, characterized in that a plurality of escalating pins are provided at regular intervals to press vertically and lift up and transport the paper into the clamp as the lifting chain travels. 2. An endless conveyance chain including a lower horizontal running section, an upper horizontal running section along the lower end of the clamp running above the lower running section, and an upward running section connecting these running directions, and an endless conveyance chain within the running wheels of this conveyance chain. a lifting running section that is stretched across the upper stage and parallel to the upward running section; and a horizontal running section that is close to and parallel to the upper horizontal running section, and the horizontal running section is perpendicular to the running direction of the clamp. In the parallel lifting traveling section, a plurality of rows of lifting chains are provided in parallel in the traveling direction of the clamps, and the conveying chain is provided with a rear end surface of the book block to be fed to the lower horizontal traveling section so that the rear end surface of the book block is connected to the traveling direction of the conveying chain. Therefore, a plurality of pusher pins that press in the horizontal direction are provided at regular intervals, and each of the plurality of lifting chains carries the lower end of the booklet transported through the lower horizontal running section while the lifting chain is running. Accordingly, it is pressed in the vertical direction and lifted up and conveyed into the clamp, and in the horizontal traveling section, it is rotated by a drive means against the lower end surface of the book block and pressed against the guide bar at the rear end of the clamp. A paper input device for a bookbinding machine, characterized in that a plurality of escalating pins are provided at regular intervals.