JP4202550B2 - Cover supply device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention prevents the occurrence of defective bookbinding due to a cover sheet feeding error, and improves the operating rate by continuing the operation without stopping the bookbinding machine even when a cover sheet feeding error occurs. It is about.
[0002]
[Prior art]
Recently, there is an increasing demand for bookbinding machines that perform high-speed and large-volume binding. FIG. 4 is a plan view showing an example of a bookbinding machine developed to meet such a demand. In FIG. 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 conveyance and alignment unit F, a nipping unit G, and a discharge unit H. ing. Further, a chain Q is stretched between the sprockets Ra and Rb, and the clamper P is connected to the connection bearings qa and qb fixed to the chain Q.
[0003]
A plurality of clampers P are connected to the chain Q via the connection bearings qa and qb at appropriate intervals. The sprocket Ra is driven by a driving motor (not shown), and the chain Q is rotated in the direction of arrow X to circulate each clamper P through each processing section of the bookbinding machine.
[0004]
The sheet bundle a conveyed from the collator conveying section A to the bookbinding machine Z is carried into the sheet bundle supply section B and is clamped by the clamper P. The sheet bundle a is then transferred to the milling processing unit C. In the milling processing section C, a milling cutter and a width adjusting plate are arranged. In the milling processing section C, when the sheet bundle a passes over the milling cutter, the back surface thereof is cut and aligned so that the paste is evenly adhered to the entire surface. Is made. Note that a blade for forming a fine groove on the back surface of the sheet bundle may be provided in the milling processing unit C in order to improve the pasting to the sheet bundle a.
[0005]
Next, the sheet bundle a whose back surface is flush with the surface is sent to the gluing processing unit D. The glue processing unit D stores glue in the glue tank and is provided with a glue roller, and a glue process is performed on the back side of the sheet bundle a, and excess glue is scraped off and removed. When the gluing process is finished, the sheet bundle a is sent to the cover conveyance and alignment unit F.
[0006]
One cover sheet b is unloaded from the cover sheet collecting section Ea of the cover sheet supply section E in the arrow Y direction, and is transported to the cover sheet transport and alignment section F. In the cover conveyance and alignment unit F, the alignment and alignment processing of the sheet bundle a and the cover b are performed. Next, in the nipping portion G, as shown in the perspective view of FIG. 5, the cover sheet b and the sheet bundle a subjected to the gluing process are conveyed onto the bottom plate c and the nip plates (clamp plates) d and e, b is attached to the back surface of the sheet bundle a, and a cover attaching process is performed. The sheet bundle a and the cover b that have been subjected to the cover attaching process are discharged from the discharge unit H to the next process.
[0007]
The cover sheet supply unit E supplies a cover sheet one sheet at a time when the sheet bundle a is conveyed to the cover sheet conveyance and alignment unit F. May cause a paper feed error such that paper is fed. In such a case, it is necessary to take measures such as stopping the operation of the bookbinding machine and allowing the operator to feed a cover sheet to the sheet bundle a or to remove an unnecessary cover sheet.
[0008]
In the bookbinding machine Z having the configuration shown in FIG. 4, when the sheet bundle a having glue applied on the back surface is conveyed to the nipping portion G without the cover sheet being fed, the bottom plate c, the nip plate (clamp plate) This is because glue adheres to d and e, and work effort is required to remove them. Further, if a plurality of cover sheets are fed, processed to cover the sheet bundle a, and discharged to the discharge section H in a bookbinding failure state, the process of the next process is hindered.
[0009]
[Problems to be solved by the invention]
As described above, when a paper feed error occurs, the operation of the bookbinding machine is stopped to cope with the problem, so that there is a problem that the operating rate of the equipment is lowered and the work load of the worker is increased. Further, the sheet bundle a subjected to the gluing process by the gluing processing unit D loses the viscosity of the gluing when the operation of the bookbinding machine is stopped, so that the cover b cannot be pasted, and the number of defective bookbinding increases. There was a problem.
[0010]
In view of such a problem, the present invention prevents the occurrence of defective bookbinding due to a cover sheet feeding error, and even when a cover sheet feeding error occurs, the cover continues to operate the equipment to improve the operating rate. The purpose is to provide a supply device.
[0011]
[Means for Solving the Problems]
According to a first aspect of the present invention, there is provided a first tray for storing a cover, a first paper feed mechanism for feeding a cover stored in the first tray, a second tray for storing a cover, A second sheet feeding mechanism for feeding a cover sheet stored in the second tray, and using either the first sheet feeding mechanism or the second sheet feeding mechanism as a regular sheet feeding mechanism. A cover supply device that supplies a cover sheet to the bookbinding machine and uses the other sheet feeding mechanism as a spare sheet feeding mechanism, and detects that the cover sheet is not normally fed from a regular sheet feeding mechanism by a sensor. The cover sheet in the standby state by the spare sheet feeding mechanism is supplied to the bookbinding machine by reaching the bookbinding machine at the same timing as the cover sheet supplied from the regular sheet feeding mechanism reaches the bookbinding machine. It is characterized by that .
[0013]
The invention according to claim 2 is the cover supply device according to claim 1, the paper feeding mechanism of the normal, the third tray and, binding machine side conveyance path of the cover and the third for accommodating the cover A switching gate for switching to the tray side is provided, and a cover is supplied to the third tray by operating a switching gate by giving a predetermined signal.
[0014]
In the invention according to claim 1, when a paper feed error occurs in the cover sheet fed from the regular paper feed mechanism, the cover sheet is fed from the spare paper feed mechanism to the bookbinding machine. For this reason, it is not necessary to stop the operation of the bookbinding machine, and it is possible to prevent a reduction in the operating rate of the bookbinding machine and to avoid an increase in the work burden on the operator.
[0015]
In addition , in the case of a bookbinding machine that glues a bundle of paper, the cover supply and the bookbinding machine are operated in conjunction with each other. The cover sheet is supplied, and an increase in the number of defective bookbinding due to the loss of the viscosity of the glue applied to the sheet bundle can be prevented.
[0016]
In the invention according to claim 2 , there is provided a switching gate for switching the cover transport path between the bookbinding machine side and the storage tray. Therefore, by operating the switching gate, it is possible to prevent the occurrence of defective bookbinding by preventing the cover sheet from being conveyed to the bookbinding machine side when a plurality of cover sheets are fed. Furthermore, it is possible to check the operation of the paper feed mechanism without operating the bookbinding machine.
[0017]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of a cover sheet supply apparatus according to the present invention will be described with reference to the drawings. FIG. 2 is a schematic side view showing the cover sheet supply apparatus 1 of the present invention, and FIG. 3 is a side view showing the cover sheet supply apparatus 1 partially enlarged. 2 and 3, reference numeral 2 denotes a tray for storing a cover b, and a predetermined number of covers b are stored therein.
[0018]
The pressure roller 3a attached to the tip of the arm 3b rotates around the fulcrum 3c in the direction of the arrow Tb as shown in FIG. 3, and the cover b is placed between the pressure roller 3x and the pressure roller 3x. Carry with pressure. 4 is a sucker that sucks the cover b stored in the lowermost part of the tray 2 by air pressure, rotates around the fulcrum 4a in the direction of the arrow Ta as shown in FIG. Pulling out from the section 2a and feeding the cover sheet b between the pressure rollers 3a and 3x releases the air suction.
[0019]
As described above, the cover b stored in the tray 2 is sequentially pulled out from the lower side. Therefore, when the number of the cover b stored in the tray 2 decreases, the upper portion of the tray 2 is not stopped without stopping the paper feeding operation. There is an advantage that the cover can be refilled.
[0020]
5a, 5b are 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, and 10 is a first transport roller. It is a conveyor. The front end of the cover sheet b conveyed while being pressurized between the pressure rollers 3a and 3x reaches the first conveyance rollers 5a and 5b.
[0021]
At this time, the feed state of the cover that passes toward the first transport rollers 5a and 5b is detected by the sensors Sa and Sb. If the sheet is normally fed, the switching gate 7 is in the state shown in FIG. 2, and the cover B passes between the first conveying rollers 5a and 5b and passes through the guide 6 and the surface of the switching gate 7. The paper is further transported by the second transport roller 9 and the first transport conveyor 10 through a transport path formed therebetween, and is transported into the cover transport and alignment unit F.
[0022]
11 is a tray for storing a predetermined number of spare cover sheets u, 12 is an air outlet, 13 is a vacuum rotor, and a vacuum chamber 13b is provided in the center, and radially from the rotating surface toward the vacuum chamber 13b. A plurality of openings 13a are formed. 15a is a motor, 16a is a sprocket, and 17a is a chain stretched between a sprocket fixed to the output shaft of the motor 15a and the sprocket 16a.
[0023]
When the motor 15a rotates, power is transmitted through the chain 17a, and the sprocket 16a rotates. For this reason, the vacuum rotor 13 connected to the sprocket 16a rotates through the chain, and the sheet feeding roller is sucked while sucking one spare cover sheet u stored in the uppermost portion of the tray 11. It discharges between the la 18a and 18b.
[0024]
The spare cover sheet u is placed in a standby state with its leading edge being sandwiched between the paper feed rollers 18a and 18b. 15b is a motor, 16b is a sprocket, and 17b is a chain stretched between a sprocket fixed to the output shaft of the motor 15b and the sprocket 16b. Reference numerals 19a and 19b denote second and third conveyors.
[0025]
When the motor 15b rotates, power is transmitted through the chain 17b, and the sprocket 16b rotates. For this reason, the feed rollers 18 a and 18 b rotate, the second and third transport conveyors 19 a and 19 b move, and the spare cover sheet u is carried out to the first transport conveyor 10.
[0026]
FIG. 1 is a schematic side view showing the operation of each part of the cover sheet supply apparatus when a plurality of cover sheets are fed from the tray 2. When the sensors Sa and Sb detect feeding of a plurality of covers, the switching gate 7 is rotated in the direction of the arrow Tc by a signal from a control device (not shown), and the guide 6 and Block the cover transport path between. Accordingly, the cover sheet b fed at this time is not transported to the second transport roller 9 and the first transport conveyor 10 but is accommodated in the tray 8.
[0027]
Further, when a drive signal is output to the motor 15b in response to a signal from the control device, the second and third transport conveyors 19a and 19b move, and the spare cover sheet u is carried out to the first transport conveyor 10. To do. The timing at which this spare cover sheet u is carried out to the first conveyor 10 is selected to be the same as the timing at which the cover sheet is normally fed from the tray 2. For this reason, it is possible to perform alignment and alignment processing with the cover sheet conveyance and alignment with the sheet bundle a carried into the alignment unit F without any trouble.
[0028]
Further, even when the sensors Sa and Sb detect that the cover sheet b is in an empty sheet feeding state, the spare cover sheet u is transferred to the first transport conveyor 10 by the signal from the control device as described above. It is carried out to. As described above, according to the configuration of the present invention, an appropriate response can be made without stopping the operation of the bookbinding machine even when an empty cover is fed or a paper feed error occurs such that a plurality of covers are fed. Can take.
[0029]
In the above example, the tray 8 is used to store a cover sheet with a plurality of sheets fed incorrectly. However, the tray 8 can also be used as a cover storage tray when checking the operation of the sheet feeding mechanism. Since the bookbinding machine has a complicated configuration in which a plurality of clampers are swung as described with reference to FIG. 4, when the bookbinding machine is operated, a worker for operation and safety confirmation is required, and the work load increases. Further, since a power mechanism such as a motor is operated, the manufacturing cost is increased.
[0030]
However, when the operation of the cover sheet feeding mechanism is confirmed by providing the tray 8 as described above, the bookbinding machine and the cover sheet feeding mechanism are separated and only the cover sheet feeding mechanism is operated to feed paper from the tray 2. The cover sheet is carried into the tray 8 after confirming the operation of each part of the cover sheet feeding mechanism such as the sucker-4, the pressure rollers 3a and 3x, the first transport rollers 5a and 5b, and the switching guide 7. In this way, the cover sheet feeding mechanism can be operated independently from the bookbinding machine, so that the bookbinding machine is not required to be operated, and an increase in the work load as described above can be avoided, and the manufacturing cost can be reduced. .
[0031]
In the example illustrated in FIGS. 1 and 2, the number of spare covers u stored in the tray 11 is displayed smaller than the number of covers b stored in the tray 2. However, it is also possible to have a structure in which a large number of cover sheets are also stored in the tray 11 and two regular sheet feeding mechanisms are provided in addition to the cover sheet feeding mechanism stored in the tray 2.
[0032]
In the example shown in FIGS. 1 and 2, the preliminary cover u is fed by air suction using a vacuum rotor 13. Thus, instead of feeding the air suction, Gomuro - can also be configured to feed a pre-cover u frictionally by la.
[0033]
【The invention's effect】
As described above, according to the first aspect of the present invention, when a paper feed error occurs in the cover sheet fed from the regular paper feed mechanism, the cover sheet is fed from the spare paper feed mechanism to the bookbinding machine. For this reason, it is not necessary to stop the operation of the bookbinding machine, and it is possible to prevent a reduction in the operating rate of the bookbinding machine and to avoid an increase in the work burden on the operator.
[0035]
In the invention according to claim 2 , there is provided a switching gate for switching the cover transport path between the bookbinding machine side and the storage tray. Therefore, by operating the switching gate, it is possible to prevent the occurrence of defective bookbinding by preventing the cover sheet from being conveyed to the bookbinding machine side when a plurality of cover sheets are fed. Furthermore, it is possible to check the operation of the paper feed mechanism without operating the bookbinding machine.
[Brief description of the drawings]
FIG. 1 is a side view showing a schematic configuration of a cover sheet supply apparatus according to an embodiment of the present invention.
FIG. 2 is a side view showing a schematic configuration of a cover sheet supply apparatus of the present invention.
3 is a partially enlarged side view of FIG. 2. FIG.
FIG. 4 is a plan view illustrating an example of a bookbinding machine.
FIG. 5 is a perspective view showing a nipping portion.
[Explanation of symbols]
1 Cover supply device 2 Tray for storing cover 4 Sucker
5a, 5b First transport roller 6 Guide 7 Switching gate 8 Discharge tray 9 Second transport roller 10 Transport conveyor 11 Preliminary cover storage tray 12 Air outlet 13 Vacuum rotor Sa, Sb Sensor

Claims (2)

A first tray for storing a cover, a first paper feed mechanism for feeding a cover stored in the first tray, a second tray for storing a cover, and a cover stored in the second tray A second sheet feeding mechanism that feeds the sheet to the bookbinding machine using either the first sheet feeding mechanism or the second sheet feeding mechanism as a regular sheet feeding mechanism, A cover sheet supply device that uses the other sheet feeding mechanism as a spare sheet feeding mechanism, and when the sensor detects that the cover sheet is not normally fed from the regular sheet feeding mechanism, the spare sheet feeding mechanism the binding machine the cover sheet in a standby state, the cover feed device, characterized in that the cover is supplied supplies allowed to reach binding machine at the same timing as to reach the binding machine from the paper feeding mechanism of the normal . The regular paper feed mechanism is provided with a third tray for storing a cover, and a switching gate for switching the cover transport path between the bookbinding machine side and the third tray, and gives a predetermined signal to 2. The cover sheet supply apparatus according to claim 1, wherein the cover sheet is supplied to the third tray by operating the switching gate.

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