JP2001072269A - Cover feed device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cover feed device which can prevent occurrence of inferior binding due to an erroneous feed of a cover, and which can continue the operation of the device even though an erroneous feed of a cover occurs. SOLUTION: This cover (b) accommodated in a tray 2 is sucked up by a sucker 4 so as to be drawn out through a slot 2a, and is then fed into a binding machine by means of pressing rollers 3a, 3x, first conveying rollers 5a, 5b, a second conveying roller 9 and a conveying roller 10. An auxiliary cover sheet accommodated in a tray 11 is sucked up by a vacuum rotor 13 so as to set up a paper feed standby state at the position of paper feed rollers 18, 18b. When the supply of a plurality of covers is detected sensors Sa, Sb, a change- over gate 7 is actuated so as to feed the covers into a tray 8. Further, the cover in the standby state is shifted from conveyers 19a, 19b onto the conveyer 10 for feeding the same into the binding machine.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention prevents the occurrence of defective bookbinding due to cover sheet feeding error, and continues the operation without stopping the bookbinding machine even when the cover sheet feeding error occurs. The present invention relates to a cover feeding apparatus for improving the rate.

[0002]

2. Description of the Related Art Recently, a demand for a bookbinding machine which performs high-speed and large-volume bookbinding has increased. FIG. 4 is a plan view showing an example of a bookbinding machine developed to meet such a demand. 4, the bookbinding machine Z is provided with a sheet bundle supply unit B, a milling processing unit C, a gluing processing unit D, a cover sheet supply unit E, a cover sheet transport and alignment unit F, a nip unit G, and a discharge unit H. ing. Also, sprocket R
A chain Q is stretched between a and Rb, and a clamper P is connected to connecting bearings qa and qb fixed to the chain Q.

[0003] A plurality of clampers P are connected to the chain Q at appropriate intervals via the connection bearings qa and qb. The sprocket Ra is driven by a drive motor (not shown), and the chain Q is rotated in the arrow X direction to circulate the clampers P through the respective processing units of the bookbinding machine.

The sheet bundle a conveyed from the collating unit conveying section A to the bookbinding machine Z is carried into a sheet bundle supply section B and is clamped by the clamper P. Next, the sheet bundle a is transferred to the milling processing section C. A milling cutter and a width adjusting plate are arranged in the milling processing section C. In the milling processing section C, when the sheet bundle a passes over the milling cutter, the back surface thereof is cut to make the back surface uniform, and the pre-processing is performed so that the glue is uniformly attached to the entire back surface. Is made. In addition, in order to improve the gluing to the sheet bundle a,
The milling unit C may be provided with a blade for forming a fine groove on the back surface of the sheet bundle.

[0005] Next, the sheet bundle a having the rear surfaces flush with each other is sent to the glue processing section D. The glue processing section D stores glue in a glue tank and is provided with a gluing roller. The gluing process is performed on the back of the sheet bundle a, and excess glue is scraped off and removed by the roller. When the gluing process is completed, the sheet bundle a is sent to the cover sheet transport and alignment unit F.

[0006] One cover sheet b is carried out from the cover stacking section Ea of the cover supply section E in the direction of arrow Y, and is carried to the cover carrying and aligning section F. In the cover sheet transporting and aligning unit F, the sheet bundle a and the cover sheet b are aligned and aligned. Next, in the nip portion G, as shown in the perspective view of FIG. 5, the cover b and the glued sheet bundle a are transported onto the bottom plate c, the nip plates (clamping plates) d and e, and b is attached to the back of the sheet bundle a and the cover attaching process is performed. Sheet bundle a and cover b subjected to cover attaching processing
Is discharged from the discharge unit H to the next step.

The cover supply unit E supplies one cover sheet at a time when the sheet bundle a is conveyed to the cover conveyance unit and the alignment unit F. A paper feeding error such as feeding a cover sheet may occur. In such a case, it is necessary to stop the operation of the bookbinding machine and take measures such as feeding the cover to the sheet bundle a or removing unnecessary cover.

This is because, in the bookbinding machine Z having the configuration shown in FIG. 4, when the sheet bundle a having the back surface coated with glue is conveyed to the nip portion G without the cover sheet being fed, the bottom plate c,
This is because the glue adheres to the nip plates (clamping plates) d and e, and the labor is required to remove the glue. Further, if a plurality of cover sheets are fed, covered with a sheet bundle a, and discharged to the discharge unit H in a state of poor bookbinding, the processing in the next step is hindered.

[0009]

As described above, when a paper feeding error occurs, the operation of the bookbinding machine is stopped to cope with the error, so that the operation rate of the equipment is reduced and the work load on the worker is increased. There was a problem of doing. Further, when the operation of the bookbinding machine is stopped, the viscosity of the glue is lost and the cover b cannot be attached to the sheet bundle a that has been glued by the glue processing section D, and the number of defective bounds increases. There was a problem.

[0010] In view of the above problems, the present invention prevents the occurrence of defective bookbinding due to cover sheet misfeeding, and improves the operation rate by continuing the operation of the equipment even when the cover sheet misfeed occurs. It is an object of the present invention to provide a cover supply device.

[0011]

The object of the present invention is to provide a cover feeding apparatus, comprising: a first tray for storing a cover; and a first tray for feeding the cover stored in the first tray. A first paper feed mechanism, a second tray for storing a cover,
A second sheet feeding mechanism for feeding the cover sheet stored in the second tray, wherein one of the first sheet feeding mechanism and the second sheet feeding mechanism is used as a regular sheet feeding mechanism; A cover feeding device that supplies a cover to the bookbinding machine and uses the other sheet feeding mechanism as a spare sheet feeding mechanism, and a sensor detects that the cover is not normally fed from the regular sheet feeding mechanism. And a configuration in which the cover in the standby state by the spare paper feeding mechanism is supplied to the bookbinding machine.

According to a second aspect of the present invention, in the cover feeding apparatus according to the first aspect, the bookbinding apparatus performs a gluing process on a back surface of the sheet bundle.

According to a third aspect of the present invention, in the cover feeding apparatus according to the first or second aspect, a third tray for storing a cover and a transport path for the cover are provided in the regular paper feeding mechanism. A switching gate for switching between the bookbinding machine side and the third tray side, and by supplying a predetermined signal to operate the switching gate, the cover is supplied to the third tray. I have.

According to the first aspect of the present invention, when an error occurs in the cover fed from the regular paper feed mechanism, the cover is fed from the spare paper feed mechanism to the bookbinding machine. For this reason, there is no need to stop the operation of the bookbinding machine to take measures, thereby preventing a decrease in the operating rate of the bookbinding machine and avoiding an increase in the work load of the worker.

In the invention according to the second aspect, the supply of the cover and the operation of the bookbinding machine are performed in an interlocked manner.
The cover is reliably supplied corresponding to the sheet bundle that has been subjected to the gluing process in the gluing processing unit, and it is possible to prevent an increase in the number of defective booklets due to the loss of the viscosity of the glue applied to the sheet bundle.

Further, in the invention according to the third aspect, a switching gate is provided for switching the cover conveyance path between the bookbinding machine side and the storage tray. For this reason, by operating the switching gate, when a plurality of covers are fed, the covers are not conveyed to the bookbinding machine side, thereby preventing the occurrence of defective bookbinding. Further, the operation of the paper feeding mechanism can be confirmed without operating the bookbinding machine.

[0017]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a cover feeding apparatus according to the present invention will be described below with reference to the drawings. FIG. 2 is a schematic side view showing the cover supply device 1 of the present invention, and FIG. 3 is a partially enlarged side view showing the cover supply device 1. FIG.
In FIG. 3, reference numeral 2 denotes a tray for storing a cover b, which stores a predetermined number of covers b.

The pressure roller 3a attached to the tip of the arm 3b rotates about the fulcrum 3c in the direction of arrow Tb as shown in FIG. 3 to move the cover b to the pressure roller 3x. It is conveyed while pressurizing between. Reference numeral 4 denotes a sucker which sucks the cover b stored at the lowermost portion of the tray 2 by air pressure, and rotates around the fulcrum 4a in the direction of arrow Ta as shown in FIG. When the cover b is pulled out from the section 2a and the cover b is fed between the pressure rollers 3a and 3x, the suction of air is released.

As described above, the cover b stored in the tray 2
Is pulled out sequentially from the lower side, so that when the number of the cover sheets b stored in the tray 2 is reduced, there is an advantage that the cover sheets can be supplied from the upper part of the tray 2 without stopping the sheet feeding operation.

Reference numerals 5a and 5b denote first transport rollers, 6 is a guide, 7 is a switching gate, 8 is a tray for storing a cover sheet of defective paper feed, 9 is a second transport roller, 10 Is a first conveyor. The front end of the cover b conveyed while being pressurized between the press rollers 3a and 3x is the first convey roller 5
a, 5b.

At this time, the feeding state of the cover passing through the first transport rollers 5a and 5b is determined by sensors Sa and Sb.
Is detected by If the paper feed is normal,
2, the cover B passes between the first transport rollers 5a and 5b, and is connected to the guide 6 and the switching gate 7.
Are further transported by a second transport roller 9 and a first transport conveyor 10 via a transport path formed between the surfaces of
The sheet is carried into the cover transport and alignment unit F.

Reference numeral 11 denotes a tray for storing a predetermined number of spare covers u, 12 denotes an air outlet, 13 denotes a vacuum rotor, and a vacuum chamber 13b is provided at the center. A plurality of openings 13a radially toward
Are formed. 15a is a motor, 16a is a sprocket, and 17a is a chain stretched between the sprocket 16a fixed to the output shaft of the motor 15a and the sprocket 16a.

When the motor 15a rotates, the chain 17a is rotated.
Is transmitted through the sprocket 16 to rotate the sprocket 16a. For this reason, the vacuum rotor 13 connected to the sprocket 16a via the chain rotates, and the sheet feeding roller is sucked while sucking one spare cover u stored at the top of the tray 11. It is discharged between the rollers 18a and 18b.

The spare cover u is provided with paper feed rollers 18a, 18
The leading end is sandwiched between b, and the apparatus enters a standby state. 15b is mo
And 16b, a sprocket, and 17b, a chain stretched between the sprocket 16b fixed to the output shaft of the motor 15b and the sprocket 16b. Reference numerals 19a and 19b denote second and third conveyors, respectively.

When the motor 15b rotates, the chain 17
The power is transmitted via b, and the sprocket 16b rotates. As a result, the paper feed rollers 18a and 18b rotate,
The second and third conveyors 19a and 19b move,
The spare cover u is carried out to the first conveyor 10.

FIG. 1 is a schematic side view showing the operation of each part of the cover feeding apparatus when a plurality of covers are fed from the tray 2. When the sensors Sa and Sb detect such feeding of a plurality of covers, the switching gate 7 is rotated in the direction of arrow Tc by a signal from a control device (not shown), and And cut off the cover transport path. Therefore, the cover b fed at this time is not transported to the second transport roller 9 and the first transport conveyor 10, but is stored in the tray 8.

The mode is controlled by a signal from the control device.
When the drive signal is output to the printer 15b, the second and third transport conveyors 19a and 19b move to place the spare cover u in the first position.
Out of the conveyor 10. The timing at which the spare cover u is carried out to the first conveyor 10 is selected so as to be the same as the timing at which the cover is normally fed from the tray 2. For this reason, it is possible to perform the alignment process and the alignment process with the cover sheet transport and the sheet bundle a carried into the alignment unit F without any trouble.

Further, when the sensors Sa and Sb detect that the cover b is in a state of empty sheet feeding in which no sheet is fed,
As described above, the spare cover u
Is carried out to the first conveyor 10. in this way,
ADVANTAGE OF THE INVENTION According to the structure of this invention, even if the cover sheet is vacantly fed or a paper feed error occurs such that a plurality of cover sheets are fed, appropriate measures can be taken without stopping the operation of the bookbinding machine. .

In the above-described example, the tray 8 is used to store a cover sheet having a plurality of sheets that have been fed incorrectly. However, the tray 8 can also be used as a cover sheet storage tray for checking the operation of the sheet feeding mechanism. Since the bookbinding machine has a complicated configuration for turning a plurality of clampers as described with reference to FIG. 4, when the bookbinding machine is operated, an operator for operation and safety confirmation is required, and the work load increases. In addition, since a power mechanism such as a motor is operated, manufacturing costs are increased.

However, when the operation of the cover sheet feeding mechanism is checked by providing the tray 8 as described above, the bookbinding machine and the cover sheet feeding mechanism are separated from each other, and only the cover sheet feeding mechanism is operated. The operation of each part of the cover feeding mechanism such as the sucker-4, the pressure rollers 3a and 3x, the first conveyance rollers 5a and 5b, and the switching guide 7 is carried into the tray 8 after the fed cover is confirmed. I do. As described above, since the cover sheet feeding mechanism can be operated independently of the bookbinding machine, the operation of the bookbinding machine is not required, and the increase in the work load as described above can be avoided, and the manufacturing cost can be reduced. .

In the examples shown in FIGS. 1 and 2, the number of spare covers u stored in the tray 11 is smaller than the number of covers b stored in the tray 2. However, a large number of covers may be stored in the tray 11 and two regular paper feed mechanisms may be provided together with a paper feed mechanism for the cover stored in the tray 2.

In the examples shown in FIGS. 1 and 2, the spare cover u is fed by air suction using the vacuum rotor 13. In this manner, instead of feeding paper by air suction, the spare cover u may be fed by frictional force of a rubber roller.

[0033]

As described above, according to the first aspect of the present invention, when an error occurs in the cover fed from the regular paper feed mechanism, the cover is supplied to the bookbinding machine from the spare paper feed mechanism. I have paper. For this reason, there is no need to stop the operation of the bookbinding machine to take measures, thereby preventing a decrease in the operating rate of the bookbinding machine and avoiding an increase in the work load of the worker.

In the invention according to claim 2, the supply of the cover and the operation of the bookbinding machine are performed in an interlocked manner.
The cover is reliably supplied corresponding to the sheet bundle that has been subjected to the gluing process in the gluing processing unit, and it is possible to prevent an increase in the number of defective booklets due to the loss of the viscosity of the glue applied to the sheet bundle.

According to the third aspect of the present invention, there is provided a switching gate for switching the cover conveyance path between the bookbinding machine side and the storage tray. For this reason, by operating the switching gate, when a plurality of covers are fed, the covers are not conveyed to the bookbinding machine side, thereby preventing the occurrence of defective bookbinding. Further, the operation of the paper feeding mechanism can be confirmed without operating the bookbinding machine.

[Brief description of the drawings]

FIG. 1 is a side view showing a schematic configuration of a cover feeding apparatus according to an embodiment of the present invention.

FIG. 2 is a side view showing a schematic configuration of a cover sheet supply device of the present invention.

FIG. 3 is a partially enlarged side view of FIG. 2;

FIG. 4 is a plan view showing an example of a bookbinding machine.

FIG. 5 is a perspective view showing a nip portion.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Cover supply apparatus 2 Tray for storing cover 4 Suckers 5a, 5b First transport roller 6 Guide 7 Switching gate 8 Discharge tray 9 Second transport roller 10 Transport conveyor 11 Tray for storing spare cover 12 Air outlet 13 Vacuum rotor Sa, Sb sensor

Continuing on the front page (72) Inventor Shinichi Takai 1601 Asahi Jinoshita, Shin-Asahi-cho, Takashima-gun, Shiga Prefecture Inside Horizon International Co., Ltd. (72) Inventor Shozo Torajoi Asahi-Jo 1601 Noshita Horizon International Co., Ltd. (72) The inventor Shigenobu Fukuda 1601 Shinasahimachi, Takashima-gun, Shiga Prefecture Asahi Joshishita 1601 Horizon International Co., Ltd. F term (reference) 3F048 AA10 AB01 BA12 BA14 BB05 BD01 DA04 EB02 3F343 FA01 GB01 GB02 HA36 HB01 JA01 KB03 KB12 KB17 LC19 MA55 MC21

Claims (3)

[Claims] A first tray for storing a cover, a first paper feed mechanism for feeding the cover stored in the first tray,
A second tray for storing a cover, and a second paper feed mechanism for feeding the cover stored in the second tray;
A cover feeding apparatus that supplies a cover to a bookbinding machine using one of the paper feeding mechanism and the second paper feeding mechanism as a regular paper feeding mechanism, and uses the other paper feeding mechanism as a spare paper feeding mechanism. When the sensor detects that the cover is not normally fed from the regular paper feed mechanism, the cover in the standby state by the spare paper feed mechanism is supplied to the bookbinding machine. Cover feeder. 2. The cover feeding apparatus according to claim 1, wherein the bookbinding device performs a gluing process on a back surface of the sheet bundle. 3. A regular paper feed mechanism having a third tray for storing a cover and a switching gate for switching a cover conveyance path between a bookbinding machine side and a third tray side. 3. The cover feeding apparatus according to claim 1, wherein a cover is supplied to a third tray by applying a signal to operate the switching gate.