Sheet stacking device, control method thereof, and sheet conveying system

Abstract

A sheet stacking device capable of labor-saving of a process from a printer to a sheet processing machine is provided. A stacker (1) includes a stacker rack (22) that receives and stacks paper printed from a printer, a lifting mechanism (77) that lifts the stacker rack (22), and a stacker control section (40) that controls the lifting mechanism (77). The stacker control section (40) lifts the stacker rack (22) to a prescribed height corresponding to the printer at a receiving position that receives paper from the printer by the lifting mechanism (77), and lifts the stacker rack (22) to a prescribed height corresponding to a sheet processing machine at a paper feeding position that is different from the receiving position, that is, a position that feeds paper to the sheet processing machine.

Description

Technical Field

[0001] This invention relates to a sheet stacking apparatus for stacking sheets such as paper, a control method thereof, and a sheet conveying system. Background Technology

[0002] Patent document 1 discloses a sheet stacking device that stacks paper discharged from a printing press onto a stacking tray and conveys it to an offline binding machine.

[0003] The sheet stacking device in Patent Document 1 reduces the burden on the operator in transferring materials to the paper supply section by lowering the stacking tray according to the weight of the sheet and keeping the upper surface of the stacking tray in a fixed position.

[0004] Existing technical documents

[0005] Patent documents

[0006] Patent Document 1: Japanese Patent Application Publication No. 2013-52971 Summary of the Invention

[0007] The problem the invention aims to solve

[0008] However, in the sheet stacking device described in Patent Document 1, the transfer from the trolley to the paper feeding section is based on the operator's work, and no labor-saving measures are envisioned for the paper feeding section.

[0009] The inventors have conducted intensive research on reducing labor costs in the process of receiving sheets discharged from a printing press and conveying them to a sheet processing machine, and then supplying sheets to the sheet processing machine. Furthermore, the inventors have discovered that the reduction of labor costs can be hindered by variations in the type of printing press or sheet processing machine, depending on its manufacturer or intended use.

[0010] The present invention was made in view of the above circumstances, and its object is to provide a sheet stacking device, its control method, and a sheet conveying system that can save manpower in the process from printing machine to sheet processing machine, even when there is a combination of multiple printing machines of different types and multiple sheet processing machines of different types.

[0011] [Technical means used to solve the problem]

[0012] One aspect of the sheet stacking apparatus of the present invention includes: a shelf portion for receiving and stacking sheets printed from a printing press; a lifting mechanism for raising and lowering the shelf portion; and a control unit for controlling the lifting mechanism. The control unit raises and lowers the shelf portion to a predetermined height corresponding to the printing press at a receiving position where sheets are received from the printing press, and raises and lowers the shelf portion to a predetermined position corresponding to the sheet processing machine at a position different from the receiving position, i.e., a supply position where sheets are supplied to the sheet processing machine.

[0013] The shelf is raised and lowered to a specified height corresponding to the printing press at the receiving position, and then raised and lowered to a specified height corresponding to the sheet processing machine at the supply position. This eliminates the need for manual transfer operations, achieving automation. Furthermore, even with combinations of multiple printing presses of different types and multiple sheet processing machines of different types, manpower can be saved in the process from the printing press to the sheet processing machine.

[0014] In a sheet stacking apparatus of one aspect of the invention, the predetermined height corresponding to the printing press is a set value set individually for each printing press, and / or the predetermined height corresponding to the sheet processing machine is a set value set individually for each sheet processing machine.

[0015] Because the height is set individually for each printing press and / or sheet processing machine, the shelf section can be raised and lowered to the appropriate specified height even for different types of printing presses or sheet processing machines.

[0016] In one aspect of the sheet stacking apparatus of the present invention, a communication unit is included that communicates with a higher-level control unit located above the control unit, and the communication unit obtains the set value from the higher-level control unit.

[0017] Because it includes a communication unit that obtains setting values ​​from the upper control unit, the sheet stacking device can flexibly adapt to different types of printing presses or sheet processing machines.

[0018] One aspect of the sheet stacking device of the present invention has inherent identification information.

[0019] Because it possesses inherent identification information, a sheet stacking device can be distinguished from other sheet stacking devices. This enables a sheet conveying system that utilizes multiple sheet stacking devices.

[0020] In one aspect of the sheet stacking apparatus of the present invention, there is a tilting mechanism for tilting the shelf portion relative to a horizontal plane and an abutting member abutting against the end of the sheet stacked on the shelf portion. The control unit uses the tilting mechanism to tilt the end side of the sheet without the abutting member relative to the other end in an upward manner when traveling from the receiving position to the supply position.

[0021] Because the end of the sheet without abutment is tilted upward relative to the other ends during travel, the possibility of the sheets stacked on the shelf scattering and falling off during travel can be avoided.

[0022] The tilt angle can also be varied depending on the amount of sheet stacking or the acceleration (including negative acceleration, i.e., deceleration) during travel. For example, when the stacking amount is small, the tilt angle is increased compared to when it is large.

[0023] In one aspect of the sheet stacking apparatus of the present invention, there are: a power receiving device that receives power at the receiving position and / or the supply position, and a battery that stores the power supplied from the power receiving device.

[0024] The sheet stacking device operates while stopped at the receiving or supplying position. At this time, power is received from an external source by a power receiving device to charge the battery. This allows charging to be performed at appropriate time intervals.

[0025] The battery supplies power to the control unit, various motors, etc., which are installed on the sheet stacking device.

[0026] One aspect of the sheet stacking device of the present invention includes casters that travel on the ground.

[0027] The sheet stacking device can be moved manually using casters that are mounted on the ground.

[0028] One aspect of the present invention is a control method for a sheet stacking apparatus, comprising a shelf portion for receiving and stacking sheets printed from a printing press, a lifting mechanism for raising and lowering the shelf portion, and a control unit for controlling the lifting mechanism. The lifting mechanism raises and lowers the shelf portion to a predetermined height corresponding to the printing press at a receiving position where sheets are received from the printing press, and raises and lowers the shelf portion to a predetermined position corresponding to the sheet processing machine at a position different from the receiving position, i.e., a supply position where sheets are supplied to a sheet processing machine.

[0029] One aspect of the sheet conveying system of the present invention includes: a sheet stacking device as described in any of the preceding claims; a printing press discharging sheets to the sheet stacking device at the receiving position; and a sheet processing machine supplying sheets from the sheet stacking device at the supply position.

[0030] One aspect of the present invention is a sheet conveying system comprising an unmanned conveyor vehicle that transports the sheet stacking device from the receiving position to the supply position.

[0031] Invention Effects

[0032] It can reduce manpower in the process from printing press to sheet processing machine. Attached Figure Description

[0033] Figure 1 This is a perspective view showing the stacker of an embodiment of the present invention configured in a receiving position relative to the printing press.

[0034] Figure 2 It is a three-dimensional view showing the stacker's configuration relative to the paper feed position of the folding machine.

[0035] Figure 3 It means Figure 1 Side view of the stacker and printing press.

[0036] Figure 4 This is a 3D diagram representing a stacker.

[0037] Figure 5 It means Figure 4 A top view of the stacker.

[0038] Figure 6 It means Figure 4 Side view of the stacker.

[0039] Figure 7 It means Figure 4 A 3D view of the stacker rack of the stacker in a tilted state.

[0040] Figure 8 yes Figure 7 Side view.

[0041] Figure 9 This is a block diagram illustrating an example of the hardware configuration of the stacker according to Embodiment 9 of the present invention.

[0042] Figure 10 This is a schematic structural diagram illustrating an example of the overall structure of the printing system according to Embodiment 10 of the present invention.

[0043] Figure 11 This is a block diagram illustrating an example of the hardware configuration of the printing overall management device according to Embodiment 11 of the present invention.

[0044] Figure 12 This is a functional block diagram illustrating an example of the functions of the printing summary management device according to Embodiment 12 of the present invention.

[0045] Figure 13 This is a functional block diagram illustrating an example of the functions of the conveying management device according to Embodiment 13 of the present invention.

[0046] Figure 14 This is a flowchart illustrating an example of the processing steps performed by the printing general management device, the stacker management device, and the transport management device in the printing process-related management system of Embodiment 14 of the present invention.

[0047] Figure 15 This is a flowchart illustrating an example of the processing steps performed by the printing general management device, the stacker management device, and the transport management device in the printing manufacturing management process of the management system related to the processing steps of Embodiment 15 of the present invention.

[0048] Figure 16It is a top view showing the folding machine and stacker aligned at the paper feeding position.

[0049] Figure 17 This is a top view showing the state where the center line of the stacker is offset relative to the center line of the folding machine at the paper feeding position.

[0050] Figure 18 This is a side view showing the stacker stop in the lowered state at the paper feeding position.

[0051] Figure 19 This is a perspective view showing the stacker involved in Variation 1 in its configuration relative to the paper feed position of the crease press.

[0052] Figure 20 This is a perspective view of the stacker in variation 2.

[0053] Figure 21 It means Figure 20 This is a side view of the stacker. Detailed Implementation

[0054] Hereinafter, an embodiment of a sheet stacking apparatus and its control method, as well as an embodiment of a sheet conveying system according to the present invention, will be described with reference to the accompanying drawings.

[0055] Figure 1 The printing system 200 of this embodiment (see reference) Figure 10 The stacker (sheet stacking device) 1 included in the printing press 3 is configured in the receiving position PS1 where it receives paper (sheet) S from the printing press 3.

[0056] After stacking a specified number of sheets of paper S printed by printing press 3, stacker 1 moves to... Figure 2 The paper feeding position (supply position) of the paper folding machine (processing machine) 5 shown is PS2.

[0057] For example, Figure 1 As shown, printing press 3 is a digital printing press, which receives data from printing press management device 204 (see reference 7) via communication unit 7. Figure 10 The job information is used to print on paper S. Further details of the job information will be described later.

[0058] A paper discharge port 3b is formed on the back side 3a of the printing press 3 to discharge the printed paper (sheet) S out of the printing press 3. The printing press 3 prints the paper S and discharges the paper S from the paper discharge port 3b to the shelf section 10 of the stacker 1. In addition, the printing press 3 counts the number of printed sheets and sends the count to the printing press management device 204. Furthermore, when the count reaches the number of sheets printed contained in the job information, a job completion signal and a job ID as job identification information are sent to the printing press management device 204.

[0059] like Figure 3 As shown, the stacker 1 is rectangular in top view and includes a base 12. Feet 14 are fixed at each of the four corners of the base 12. Each foot 14 is erected on the floor surface FL and supports the weight of the stacker 1. The vertical dimension of each foot 14 is the length of an unmanned transport vehicle 20 that can be folded under the base 12 to form a low-floor configuration. The unmanned transport vehicle 20 transports the stacker 1 by lifting the base 12 from below. Therefore, the stacker 1 does not include a self-propelled travel device. The unmanned transport vehicle 20 includes wheels 20a, according to the transport management device 203 described later (see reference). Figure 10 Follow the instructions and proceed along the prescribed path.

[0060] A stacker ID (identification information) 13 is fixed to the lower surface of the base 12. The stacker ID 13 contains inherent identification information that identifies the stacker 1. The stacker ID 13 can be an IC chip or a two-dimensional barcode, etc.

[0061] A main body 16 is provided on the rear R side of the base 12, extending vertically upward from the base 12. The main body 16 supports one end of the shelf section 10 in a cantilevered state. A communication section 18 is provided on the upper part of the main body 16.

[0062] like Figure 3 As shown, the shelf section 10 of the stacker 1 includes a stacking rack 22 for directly stacking papers S, and a lifting platform 24 located below the stacking rack 22. The stacking rack 22 is a rectangular plate-like body when viewed from above. A stop (abutment member) 26 and a paper width guide (abutment member) 28 are provided on the stacking rack 22.

[0063] The stop 26 is a rod-shaped body erected upwards from the stacking rack 22, located on the rear R side of the stacking rack 22. For example... Figure 1 As shown, two stoppers 26 are arranged side-by-side in the width direction of the stacking rack 22. The width direction of the stacking rack 22 refers to the direction orthogonal to the length direction of the stacking rack 22, which connects the front (F) and rear (R). The leading edge of the paper S discharged from the printing press 3 abuts against the stoppers 26, thereby positioning the discharge direction of the paper S.

[0064] like Figure 4 As shown, the lower end of each stop 26 is inserted into a stop travel groove 30 formed on the stacking rack 22. The stop travel groove 30 is formed in a straight line along the length of the stacking rack 22. Each stop 26 reciprocates along the stop travel groove 30.

[0065] like Figure 5 and Figure 6 As shown, the lower end of the stop 26 is fixed to a bracket 32 ​​extending along the width direction of the stacking rack 22. Sliding guide shafts 34 are inserted through both ends of the bracket 32 ​​in the width direction. The sliding guide shafts 34 are fixed to the sides of the stacking rack 22 and extend along the length direction of the stacking rack 22. The bracket 32 ​​is guided by the sliding guide shafts 34 to move back and forth.

[0066] A feed screw 36 is mounted at the center of the bracket 32 ​​in the width direction. The feed screw 36 is rotated about an axis by a positioning motor 38 fixed to the rear R side of the stacker 22. The positioning motor 38 can be controlled by the stacker control unit 40 (see reference). Figure 4 The feed screw 36 is rotated in both directions according to the command of the positioning motor 38. The positioning of each stop 26 fixed on the bracket 32 ​​is achieved by rotating the feed screw 36 in the length direction.

[0067] like Figure 6 As shown, on one side of the rear R-side of each stop 26, upper and lower racks 26a are provided in the vertical direction. Pinions 42 mounted on the stacking frame 22 mesh with each of the upper and lower racks 26a. Each pinion 42 is connected to a rotating shaft 44 (see reference). Figure 5 The stacker is connected to the up-and-down moving motor 46. By using the up-and-down moving motor 46 to rotate the pinion 42 forward and backward via the rotating shaft 44, the stop members 26, each equipped with an up-and-down rack 26a, move up and down. The up-and-down moving motor 46 is controlled by the stacker control unit 40 (see reference 46). Figure 4 )conduct.

[0068] like Figure 3 As shown, the paper width guide 28 is a rod-shaped body vertically arranged upwards from the stacking rack 22, positioned further forward F than the stop 26. Figure 1 As shown, two paper width guides 28 are provided on both sides of the paper S in the width direction.

[0069] like Figure 4 As shown, the lower end of each paper width guide 28 is inserted into a paper width guide travel groove 48 formed on the stacking rack 22. The paper width guide travel groove 48 is formed in a straight line along the width direction of the stacking rack 22. Each paper width guide 28 reciprocates along the paper width guide travel groove 48.

[0070] like Figure 5As shown, the lower ends of each paper width guide 28 are fixed to a bracket 50 extending along the length of the stacking rack 22. Sliding guide shafts 52 are inserted through both ends of each bracket 50 in the width direction. The sliding guide shafts 52 are fixed to the sides of the stacking rack 22 and extend along the width direction of the stacking rack 22. The bracket 50 is guided by the sliding guide shafts 52 to move back and forth.

[0071] A feed screw 54 is installed at the center of each bracket 50 along its length. The feed screw 54 is rotated about its axis by a positioning motor 56 fixed to the stacker 22. The positioning motor 56 can be adjusted according to the stacker control unit 40 (see reference). Figure 4 The paper width guides 28 fixed on the bracket 50 are positioned in the width direction by rotating the feed screw 54 using the positioning motor 56.

[0072] like Figure 6 As shown, the stacker 1 includes a tilting mechanism 60 that raises and tilts the front F side of the stacking rack 22 relative to the lifting platform 24. That is, it tilts the paper S with the end side (i.e., the open side) facing upwards, without the stop 26 and each paper width guide 28. Figure 7 and Figure 8 As shown, the tilting mechanism 60 includes a direct-acting cylinder 62 fixed to the front F side end of the lifting platform 24, and a rod 64 that reciprocates in the vertical direction via the direct-acting cylinder 62. The direct-acting cylinder 62 is electrically powered and controlled by the stacker control unit 40 (see reference). Figure 4 Control. The front end (upper end) of lever 64 is rotatably fixed to stacking rack 22 via pivot pin 66. The base end 22a on the rear R side of stacking rack 22 is rotatably fixed to lifting platform 24 via pivot pin 68. Pivot pin 68 is mounted on the upper end of arm 70 erected from lifting platform 24. By tilting mechanism 60, stacking rack 22 rotates about pivot pin 68 and tilts relative to lifting platform 24.

[0073] The lifting platform 24, viewed from above, is a rectangular plate-like structure, for example... Figure 6 As shown, the base end 24a of the rear R is movably connected to the main body 16. Specifically, the base end 24a of the lifting platform 24 is fixed to a chain 72 disposed within the main body 16 via a bracket. The chain 72 is loop-shaped and wound between upper and lower sprockets 74 respectively disposed within the main body 16. Figure 5 As shown, when viewed from above, each sprocket 74 is respectively disposed at both ends of the rotating shaft 76 extending in the width direction. Therefore, two chains 72 are respectively disposed on the left and right sides of the main body 16 in the width direction, and sprockets 74 are disposed on the top and bottom of each chain 72.

[0074] like Figure 6As shown, a lifting mechanism 77 is provided within the main body 16. The lifting mechanism 77 includes a lifting platform motor 78. The lifting platform motor 78 is controlled by the stacker control unit 40 to rotate in both directions. The rotational output of the lifting platform motor 78 is transmitted to the worm gear (lifting mechanism) 82 via a synchronous belt 80. The worm gear 82 causes the wheel 84 to rotate, thereby rotating the spur gear 86 that meshes with the teeth of the wheel 84. The spur gear 86 is fixed on the rotating shaft 76, and the rotating shaft 76 and the sprocket 74 are rotated by the spur gear 86, thereby driving the chain 72 and raising or lowering the lifting platform 24.

[0075] A wheel 88 is provided on the lower side of the base end 24a of the lifting platform 24, and the wheel 88 travels along the front surface 16a of the main body 16. As a result, the lifting platform 24 can be raised and lowered relative to the main body 16 in a cantilevered state.

[0076] For example, Figure 6 As shown, a power receiving head (power receiving device) 90 is provided at the front F of the stacker 1. The power receiving head 90 is fixed to the front end 12a of the base 12. One end of the power supply cable 92 is electrically connected to the power receiving head 90, and the other end of the power supply cable 92 is connected to the battery 94 (see reference) inside the main body 16. Figure 4 Electrical connection.

[0077] Battery 94 is, for example, a lithium-ion battery, including battery management device 97 (see reference). Figure 9 The battery management device 97 manages the charging status of the battery 94 and outputs battery information to the stacker control unit 40.

[0078] The receiver 90 is in the receiving position PS1 (refer to...) Figure 1 ) or paper feed position PS2 (refer to Figure 2 The power receiving head 90 is positioned opposite the power supply head 96 at a predetermined location. The power receiving head 90 receives power from the power supply head 96, for example, via a non-contact method. The power supply head 96 is positioned corresponding to the stop position of the stacker 1 relative to the printing press 3 or the folding machine 5. The power supply head 96 includes a power socket 96a, which is connected to a nearby power source. Furthermore, the power supply method is not limited to non-contact; it can also be contact-based. Additionally, the location of the power supply head 96 is not limited to its proximity to the printing press 3 or the folding machine 5; it can also be appropriately positioned at a predetermined stop position of the stacker 1.

[0079] like Figure 4 As shown, the unmanned transport vehicle 20 has a transport management device 203 (refer to) on its upper surface, which serves as a higher-level device. Figure 10 The communication unit 101 and ID reading unit 105 communicate with each other. The ID reading unit 105 reads the stacker ID13 fixed on the lower surface of the base 12. The communication unit 101 and ID reading unit 105 can communicate with the unmanned transport vehicle control unit 103 that controls the unmanned transport vehicle 20.

[0080] An uplifting platform 20b is provided on the upper part of the unmanned transport vehicle 20. The stacker 1 is lifted from the ground FL by the lifting platform 20b, and the unmanned transport vehicle 20 transports the stacker 1 to a designated position while in this state. When the unmanned transport vehicle 20 reaches the destination position, the lifting platform 20b is lowered, so that the feet 14 of the stacker 1 touch the ground FL, and the stacker 1 is positioned in the designated position. For example, after positioning the stacker 1 in the designated position, the unmanned transport vehicle 20 moves away from under the stacker 1 to the next destination. The travel schedule of the unmanned transport vehicle 20 is controlled by the transport management device 203. Figure 10 The unmanned transport vehicle 20 moves according to the transport instruction information received from the transport management device 203.

[0081] Figure 9 This is a block diagram illustrating an example of the hardware configuration of stacker 1. (e.g.) Figure 9 As shown, the stacker 1 includes a stacker control unit 40. The stacker control unit 40 includes, for example, a CPU 120, a storage unit 121 for storing programs executed by the CPU 120, and a main memory 122 that functions as a working area when each program is executed. The storage unit 121 is, for example, a ROM (Read-Only Memory), an HDD (Hard Disk Drive), or flash memory.

[0082] A series of processes used to implement the various controls described above are, for example, stored as a program in the storage unit 121. The CPU 120 reads this program into the main memory 122 and performs information processing and calculations, thereby realizing various controls. Alternatively, the program can be provided pre-installed in the storage unit 121, in a state stored on a computer-readable storage medium, or distributed via wired or wireless communication means. Computer-readable storage media include magnetic disks, magneto-optical disks, CD-ROMs, DVD-ROMs, semiconductor memories, etc.

[0083] Additionally, the stacker 1 includes a communication unit 18, which is used to communicate with the stacker management device described later (see reference). Figure 10 The stacker control unit 40 and the communication unit 18 communicate with the printing press 3 and various processing machines (e.g., folding machine 5, creasing machine 6). The stacker control unit 40 and the communication unit 18 are connected via a bus. The communication unit 18 sends various information to the designated sending destination according to the instructions from the stacker control unit 40, and outputs the information received from each device to the stacker control unit 40.

[0084] For example, the communication unit 18 has a communication function for establishing communication according to various communication standards based on the communication destination. As an example, communication with the printing press 3 and various processing machines (e.g., folding machine 5, creasing machine 6, etc.) is conducted using short-range communication such as Bluetooth (registered trademark), while communication with the stacker management device 202 (see reference 18) is conducted at a more distant location. Figure 10 ) or as its superior system's overall printing management device (superior control unit) 201 (refer to) Figure 10 Communication is conducted using wide area communication (e.g., wireless LAN). Furthermore, communication with each stacker management unit (upper control unit) 202 and the printing overall management unit 201 can also be conducted using specific communication protocols employed in the printing industry.

[0085] In addition, the stacker control unit 40 is connected to the aforementioned positioning motors 38 and 56, the up-and-down movement motor 46, the direct-acting cylinder 62, and the lifting platform motor 78 via a bus, and controls these components. Specifically, the stacker control unit 40 receives work information from the stacker management device 202 or the printing overall management device 201, and controls the aforementioned motors 38, 46, 56, 78, and direct-acting cylinder 62 based on the work information.

[0086] Additionally, the stacker control unit 40 is connected to the battery management device (microcomputer) 97 that manages the battery 94 via a bus. The stacker control unit 40 receives battery information (such as remaining battery capacity) from the battery management device 97 and, for example, transmits this battery information to the stacker management device 202 (see reference 18) via the communication unit 18. Figure 10 ).

[0087] Figure 10 This is a schematic structural diagram illustrating an example of the overall structure of the printing system 200, which includes the stacker 1 and the unmanned transport vehicle 20 described above.

[0088] like Figure 10 As shown, the printing system 200 includes a printing overall management device 201, a stacker management device 202, a conveying management device 203, a printing press management device 204, and a processing machine management device 205 as a management system 210. The management devices 201 to 205 constituting the management system 210 may also be structures capable of communicating with each other.

[0089] Additionally, the printing system 200 includes a stacker 1 managed by a stacker management device 202, an unmanned transport vehicle 20 managed by a transport management device 203, a printing press 3 controlled by a printing press management device 204, and various processing machines managed by a processing machine management device 205. Figure 10 In the example of a processing machine, a paper folding machine 5 and a creasing machine 6 are shown.

[0090] The printing overall management device 201 is configured to communicate with the stacker management device 202, the transport management device 203, the printing press management device 204, and the processing machine management device 205, and to perform overall management of the printing system 200 based on information from these management devices. Details of the printing overall management device 201 will be described later.

[0091] The stacker management device 202 is configured to communicate with each of the multiple stackers 1 and is a management device for managing each stacker 1. The stacker management device 202 has, for example, stacker management information associated with stacker ID, operating status, current location information, work information, and battery information. The operating status is "working status" when a job has been assigned and "standby status" when no job has been assigned. The current location information registers the stacker's location information. This location information can be coordinate information, or it can be determined by associating with the ID of the printing press 3 or processing machine when paper is being received or fed. The work information includes cumulative working time, time elapsed since the last working session, etc. Battery information includes, for example, battery charge rate or remaining battery capacity. The stacker management device 202 communicates with each stacker 1 at predetermined intervals, receives operating status, current location information, work information, and battery information from each stacker 1, and updates the stacker management information based on this information.

[0092] When the print management unit 201 receives the job ID and job information, the stacker management unit 202 determines which stacker 1 to perform the job based on the aforementioned stacker management information. For example, the stacker management unit 202 has a defined evaluation formula that includes parameters such as the elapsed time since the last job, the remaining battery capacity, and the distance between the device specified in the job information (e.g., printing press 3, folding machine, etc.) and the current position. Then, the stacker management unit 202 substitutes the aforementioned parameters of each stacker 1 whose operating state is "standby" into the evaluation formula according to the stacker management information, thereby calculating an evaluation value. The stacker with the highest evaluation value is then selected as the stacker to perform the job. Furthermore, the parameters in the aforementioned evaluation formula can also be weighted according to their importance.

[0093] The transport management device 203 is a management device that manages the operation of multiple unmanned transport vehicles (unmanned transport devices) 20. The transport management device 203 is configured to communicate with each unmanned transport vehicle 20. Each unmanned transport vehicle 20 is assigned a unique unmanned transport vehicle ID. Further details about the transport management device 203 will be described later.

[0094] The printing overall management device 201, the conveying management device 203, and each unmanned transport vehicle 20 respectively store map information of the building. Therefore, the unmanned transport vehicles can move to the desired location according to instructions from the printing overall management device 201 and the conveying management device 203. Furthermore, the coordinate information may also record the positions of the printing press 3 and various processing machines (e.g., folding machine 5, creasing machine 6, etc.).

[0095] The printing press management device 204 is a management device for the printing press 3. For example, when it receives job information from the overall printing management device 201, the printing press management device 204 outputs the job information to the printing press 3. Additionally, when it receives a job completion signal from the printing press 3, it outputs a job completion signal to the overall printing management device 201. Furthermore, the printing press management device 204 can also store operating information and fault detection data of the printing press 3. This information is useful during maintenance and inspection.

[0096] The processing machine management device 205 is a management device for the processing machine that performs processes downstream of the printing press 3. Figure 1 In this example, a paper folding machine 5 and a creasing machine 6 are shown as processing machines, but the processing machines are not limited to this example. In addition, the processing machine management device 205 can also store the working information, abnormality detection, etc. of each processing machine.

[0097] In addition, Figure 10 The illustration shows a printing system 200 comprising two stacking machines 1, three unmanned transport vehicles 20, one printing machine 3, a paper folding machine 5, and a creasing machine 6. However, the number of these devices is not limited to the arrangement shown in the illustration. That is, at least one arbitrary device is required.

[0098] Figure 11 This is a block diagram illustrating an example of the hardware configuration of the printing overview management device 201 according to an embodiment of the present invention. Figure 11 As shown, the printing overall management device 201 includes a computer, and includes, for example, a CPU 211, a storage unit 212, a main memory 213, a communication unit 214, an input unit 215, and a display unit 216.

[0099] CPU 211 controls the printing system 200 as a whole by means of an OS (Operating System) stored in a storage unit 212 connected via a bus, and performs various processes by executing various programs stored in the storage unit 212.

[0100] Storage unit 212 includes, for example, ROM (Read-Only Memory), HDD (Hard Disk Drive), flash memory, etc., storing operating systems such as Windows (registered trademark) for overall control of the printing system 200, printing-oriented applications, and various data or files. Furthermore, storage unit 212 stores programs for implementing various processes and various data required for implementing those processes.

[0101] The main memory 213 is composed of writable memory such as cache memory and RAM (Random Access Memory), and is used as a working area for reading the program executed by the CPU 211 and writing data based on the program.

[0102] The communication unit 214 serves as an interface for connecting to a network to communicate with another device and send and receive information.

[0103] The input unit 215 is, for example, a keyboard, mouse, touch panel, or other user interface used by the user to give instructions to the printing overall management device 201.

[0104] The display unit 216 may have a display screen composed of LCD (Liquid Crystal Display), organic EL (Electroluminescence), etc., and displays the results of application software programs executed by CPU 211.

[0105] Alternatively, the input unit 215 and the display unit 216 may be configured to be connected to the printing overall management device 201 via a network or the like, enabling remote input operations and remote display.

[0106] Furthermore, the hardware configurations of the stacker management device 202, conveyor management device 203, printing press management device 204, and processing machine management device 205 are largely the same as those of the overall printing management device 201. That is, each of the management devices 202 to 205 includes a CPU, main memory, storage unit, communication unit, input unit, and display unit. Additionally, the input unit and display unit can be configured for remote operation.

[0107] Next, the functions of the printing summary management device 201 according to this embodiment will be described. As an example, a series of processes for implementing the various functions described later are stored in the form of a program. Figure 11In the storage unit 212 shown, the CPU 211 reads the program into the main memory 213, performs information processing and arithmetic operations, thereby realizing various functions. Alternatively, the program can be provided pre-installed in the storage unit 212, in a state stored on a computer-readable storage medium, or distributed via wired or wireless communication means. Computer-readable storage media include magnetic disks, magneto-optical disks, CD-ROMs, DVD-ROMs, semiconductor memories, etc.

[0108] Figure 12 This is a functional block diagram illustrating an example of the functions possessed by the printing overall management device 201. For example... Figure 12 As shown, the printing overall management device 201 includes, for example, a storage unit 212, a job management unit 222, a processing unit 223, and a communication unit 214.

[0109] The storage unit 212 stores a job management list. The job management list is a list that records the manufacturing schedule of printed materials produced by the printing system 200. For example, for each job ID (job identification information) assigned to a printed material, the job information, such as the manufacturing process steps used to manufacture the printed material and the job status, is recorded in the job management list.

[0110] Job information is the various information required to manufacture printed materials, including paper information and job information.

[0111] Paper information includes, for example, paper size, paper thickness, number of sheets printed, number of sheets that make up the printed matter, and number of copies of the printed matter produced.

[0112] The job information includes the manufacturing process steps of the printed material, as well as the IDs of the printing presses used in the manufacturing process and their setting parameters.

[0113] For example, when folding paper after printing, the manufacturing process steps are recorded in the order of printing press 3 and folding machine 5. Additionally, setting parameters such as shelf height and guide position are recorded as operation information, associated with the printing press ID of printing press 3. Furthermore, processing specifications and paper feed position offset information for each folding machine ID are recorded, associated with the folding machine ID of folding machine 5.

[0114] In addition, as job information, for example, JDF described in a standard format in the field of printing technology can be used.

[0115] For each manufacturing process of printed materials (such as "printing", "folding", etc.), the work status is recorded as "completed", "in progress", "not completed", etc.

[0116] The job management unit 222 performs operations such as adding, updating, and deleting jobs stored in the storage unit 212. For example, when accessed via the input unit 215 (see...) Figure 11 When the communication unit 214 receives a request to manufacture a new printed matter, the job ID is assigned to the printed matter that accepts the request, and the job information is registered in the job management list, thereby updating the job management list.

[0117] Furthermore, when a job completion signal is received via the communication unit 214, the job status in the job management list is updated based on the job completion signal. This allows for the identification of completed jobs, incomplete jobs, and jobs in progress, and for jobs in progress, it allows for the determination of which step the job has reached. Thus, the progress of jobs can be managed.

[0118] The processing unit 223 generates instruction information to be sent to each management device 202 to 205 based on the job management list. Each management device 202 to 205 activates the various devices under its management according to the instruction information, thereby enabling the printing processing steps in the printing system 200 to proceed stably and smoothly based on the job information. Furthermore, the sequence of processing steps executed by the processing unit 223 will be described later.

[0119] The communication unit 214 sends various instruction information generated by the processing unit 223 to the sending destination specified by the processing unit 223, and outputs information received from various management devices 202 to 205 to the processing unit 223.

[0120] Figure 13 This is a functional block diagram illustrating an example of the functions possessed by the transport management device 203 of this embodiment.

[0121] The transport management device 203 includes a storage unit 231, an information acquisition unit 232, a determination unit 233, and a communication unit 234.

[0122] Storage unit 231 stores transport management information, such as unmanned transport vehicle ID, operation status, current location information, working information, and battery information.

[0123] The operational status is "working state" when a stacker is currently allocated for transport, "standby state" when no memory is allocated for transport, and "charging" when charging is in progress. The location information of the unmanned transport vehicle 20 is recorded as current location information. Working information includes, for example, cumulative working time and time elapsed since the last working session. Battery information includes, for example, battery charge rate or remaining battery capacity.

[0124] In addition, the various information that constitutes the above-mentioned transmission management information is just one example; some of this information can be registered, and other parameters can be added to the registration.

[0125] The information acquisition unit 232 communicates with each unmanned transport vehicle 20 at predetermined intervals to acquire the aforementioned battery information, current location information, and working information, and updates the transport management information stored in the storage unit 231.

[0126] Upon receiving delivery instruction information from the printing management unit 201, which includes the stacker ID, location information, and delivery destination information of the stacker to be delivered, the determination unit 233 determines any one of the unmanned delivery vehicles 20 for delivering the stacker 1 based on the delivery management information stored in the storage unit 231. For example, the delivery management unit 203 has a defined evaluation formula that includes parameters such as the time elapsed since the last operation, the cumulative working time, the remaining battery capacity, and the distance to the location information of the stacker 1 to be delivered. Then, the aforementioned parameters of the unmanned delivery vehicle 20 currently in "standby mode" are obtained from the delivery management information, and substituted into the evaluation formula to calculate an evaluation value. The unmanned delivery vehicle 20 with the highest evaluation value is then selected as the unmanned delivery vehicle to execute the delivery instruction information. Furthermore, the parameters in the evaluation formula can also be weighted according to their importance.

[0127] The communication unit 234 establishes communication with the unmanned transport vehicle 20 and with the printing general management device 201, thereby enabling mutual communication.

[0128] Next, the printed matter manufacturing management process performed by the management system 210, which includes the above-described printing general management device 201, will be described with reference to the accompanying drawings.

[0129] Figure 14 This is a flowchart illustrating an example of the processing steps performed by the printing general management device 201, the stacker management device 202, and the transport management device 203 in the printing manufacturing management process of the management system 210 related to the printing process. Figure 15 This is a flowchart illustrating an example of the processing steps performed by the printing general management device 201, the stacker management device 202, and the transport management device 203 in the printing manufacturing management process of the management system 210 related to the processing steps.

[0130] like Figure 14 As shown, firstly, the printing overall management device 201 determines the job ID (SA1) for starting the production of the printed material based on the job management list. Then, the determined job ID and the job information associated with that job ID are sent to the stacker management device 202 and the printing press management device 204 (see reference). Figure 10(SA2). The printing press management device 204 sends the received job ID and job information to the printing press 3. The printing press 3, having received the job ID and job information, enters a standby state until it receives a readiness-to-complete signal from the stacker 1.

[0131] On the other hand, when receiving the job ID and job information from the printing overall management device 201, the stacker management device 202 determines the stacker 1 (SA3) to be assigned the job based on the stacker management information, and sends the stacker information, including the stacker ID and current position information of the determined stacker 1, to the printing overall management device 201 (SA4) in association with the job ID. Furthermore, the stacker management device 202 sends the job ID and job information to the determined stacker 1. Additionally, the stacker management device 202 changes the operating status of the stacker 1 assigned the job to "working status" in the stacker management information.

[0132] Stacker control unit 40 of stacker 1 (refer to) receives job ID and job information Figure 9 The lifting platform motor 78 is controlled according to the work information. This motor actuates the lifting platform motor 78, positioning the lifting platform at a height individually set according to the type of printing press 3. This allows for proper reception of paper ejected from the printing press 3 during printing. Furthermore, the stacker control unit 40 controls the positioning motors 38 and 56, and the vertical movement motor 46. This positions the stop member 26 in the front-back direction and the paper width guide member 28 in the width direction, corresponding to the dimensions of the paper S specified in the printing operation.

[0133] On the other hand, Figure 14 When the stacker information and job ID are received from the stacker management device 202, the printing overall management device 201 generates transport instruction information based on the received stacker information, job ID, and job information, and sends it to the transport management device 203 (SA5). The transport instruction information includes the current position information of the stacker 1, the stacker ID, and the receiving position PS1 of the printing press 3.

[0134] Based on the conveying instruction information and the conveying management information, the conveying management device 203 determines the unmanned conveyor 20 to be used for conveying the stacker 1, and sends conveying instruction information (SA6) to the determined unmanned conveyor 20. In addition, the conveying management device 203 changes the operation status of the unmanned conveyor 20 to "working status" in the conveying management information.

[0135] Upon receiving the transport instruction information, the unmanned transport vehicle 20 moves the stacker 1 to the receiving position PS1 of the printing press 3 according to the transport instruction information. Alternatively, when the unmanned transport vehicle 20 arrives at the stacker 1, the ID reading unit 105 reads the stacker ID 13 and compares it with the stacker ID read by the ID reading unit 105 to see if they match. By performing such a comparison process, for example, even when multiple stackers 1 are arranged close together, the stacker 1, which is the object of the transport instruction, can be reliably moved.

[0136] When the unmanned transport vehicle 20 positions the stacker 1 at the receiving position PS1 of the printing press 3 according to the transport instruction information, it sends a transport completion signal to the stacker 1 and also sends a transport completion signal and its own unmanned transport vehicle ID to the transport management device 203. Alternatively, the unmanned transport vehicle 20 can also send the transport completion signal to the stacker 1 via the transport management device 203 and the stacker management device 202. Furthermore, the communication between the unmanned transport vehicle 20 and the stacker 1, as described below, can be either direct between the two or indirect via the transport management device 203 and the stacker management device 202.

[0137] Upon receiving a delivery completion signal and the unmanned transport vehicle ID (SA7), the delivery management device 203 sends a delivery completion signal (SA8) to the printing summary management device 201. Additionally, the delivery management device 203 acquires the battery information of the unmanned transport vehicle 20 that received the delivery completion signal and determines whether the remaining battery capacity is below a predetermined lower limit. If the remaining battery capacity is below the lower limit, the device sends a charging instruction to the unmanned transport vehicle 20 to guide it to the battery station and changes the operation status of the delivery management information to "charging state." If the remaining battery capacity exceeds the lower limit, the operation status is changed to "standby state."

[0138] On the other hand, for example, the stacker 1, having received a delivery completion signal from the unmanned transport vehicle 20, sends a readiness completion signal to the printing press 3. Additionally, the battery 94 of the stacker 1 (see reference...) Figure 9 Power is received from the power supply head 96 located near the printing press 3 via the power receiving head 90 as needed.

[0139] When the ready-to-be-completed signal is received from the stacker 1, the printing press 3 begins printing based on the job information received from the printing press management device 204. A printing start signal is sent to the printing press management device 204. The printing press management device 204 manages the status. Furthermore, the printing press management device 204 can send a printing start signal to the overall printing management device 201.

[0140] A sensor for detecting discharged paper is provided near the paper discharge port 3b of the printing press 3. The printing press 3 counts the number of sheets printed based on the detection signal from the sensor and sends the count to the stacker 1. The stacker control unit 40 of the stacker 1 controls the motor 78 of the lifting platform based on the count and the paper thickness obtained from the job information. As a result, the lifting platform descends in response to the stack count and is able to receive the discharged paper from the printing press 3 at the appropriate position.

[0141] When the printing press 3 detects that the count has reached the number of prints specified by the job information, it sends a printing job completion signal to the stacker 1 and the printing press management device 204 configured at the receiving position PS1.

[0142] Stacker control unit 40 of stacker 1 (see reference) Figure 9 Upon receiving a signal indicating the printing job is complete, the control motor 78 lowers the lifting platform to its original position. Then, the stacker control unit 40 controls the direct-acting cylinder 62 to tilt the stacking rack 22 at a predetermined angle for transport to the processing machine for the next process. For example, as... Figure 7 and Figure 8 As shown, the tilting mechanism 60 of the stacker 1 makes the front F side of the stacking rack 22 higher than the rear R side. Thus, when the stacker 1 moves forward F by the unmanned transport vehicle 20, it can prevent the papers S stacked on the stacking rack 22 from falling off the open side where the stop 26 or the paper width guide 28 is not provided.

[0143] On the other hand, when a printing job completion signal is received from the printing press 3, the printing press management device 204 sends the printing press ID, job ID and printing job completion signal to the printing overall management device 201.

[0144] When a printing job completion signal is received (SA9), the printing overall management device 201 updates the job management list by changing the status of the printing process for that job ID in the job management list to "completed" (SA10). Then, the process returns to step SA1, where the next job ID to be executed is determined from the job management list. The printing process for the next job ID is then executed, and the aforementioned processing is performed on the determined job.

[0145] Additionally, when the printing job completion signal is received as described above ( Figure 15 (SB1) The printing overall management device 201 determines the processing machine (e.g., folding machine 5) to perform the processing operation based on the operation information associated with the operation ID that received the printing operation completion signal, and sends the processing machine ID, operation ID, and operation information (SB2) to the processing machine management device 205. In addition, at this time, the stacker ID of the stacker 1 that is feeding paper can also be sent to the processing machine.

[0146] Upon receiving this information, the machine management device 205 sends the job ID, job information, and stacker ID to the machine identified by the machine ID (e.g., folding machine 5). For example, upon receiving the job ID and job information, the folding machine 5 performs a reset based on the job information and enters a standby state for that job until the stacker 1 moves to the paper feed position PS2.

[0147] Additionally, the printing overall management device 201 generates transport instruction information for moving the stacker 1, positioned at the receiving position PS1 of the printing press 3, to the paper feeding position of the folding machine 5, and sends this information to the transport management device 203 (SB3). The transport instruction information may include, in addition to the stacker ID and the current position information of the stacker, information about the paper stacked in the stacker ID (e.g., paper size, paper thickness, number of sheets). Furthermore, the transport instruction information may also include offset information of the folding machine 5 relative to the paper feeding position. Additionally, the transport instruction information may also include information related to the paper feeding direction of the folding machine 5 (e.g., longitudinal or transverse direction). Furthermore, the position information of the receiving position PS1 of the printing press 3 may be used as the current position information of the stacker.

[0148] The transport management device 203 determines the unmanned transport vehicle 20 to transport the stacker 1 based on the transport instruction information and the transport management information, and sends transport instruction information (SB4) to the determined unmanned transport vehicle 20. Upon receiving the transport instruction information, the unmanned transport vehicle 20 moves the stacker 1 from the receiving position PS1 of the printing press 3 to the paper feeding position PS2 of the folding machine 5 according to the transport instruction information. Alternatively, when the unmanned transport vehicle 20 reaches the position of the stacker 1, the ID reading unit can read the stacker ID 13 and compare it with the stacker ID read by the ID reading unit 105 to see if they match.

[0149] In addition, during the transport by the unmanned transport vehicle 20, since the stacking rack 22 in the stacker 1 is tilted at a predetermined angle, it is possible to prevent the paper S stacked on the stacking rack 22 from flying off and fall, thus achieving stable movement.

[0150] Furthermore, the unmanned transport vehicle 20 can adjust its acceleration or speed during transport based on the paper information contained in the transport instruction information. For example, the stack weight of the paper being stacked by the stacker 1 can be estimated based on the number of sheets, paper size, and paper thickness. The unmanned transport vehicle 20 achieves stable movement by adjusting its acceleration or speed based on the total weight of the stacker 1 obtained from this information. Additionally, the transport management device 203 can also estimate the stack weight of the paper based on paper information such as the number of sheets, and include the estimated stacking information in the transport instruction information sent to the unmanned transport vehicle 20.

[0151] The unmanned transport vehicle 20 moves the stacker 1 to the paper feeding position PS2 of the folding machine 5. Based on the information about the paper feeding direction of the folding machine 5 contained in the transport instruction information, it controls the configuration direction of the stacker 1 to make the paper feeding direction of the stacker 1 appropriate. Thus, even if the discharge direction of the sheet in the printing press 3 is different from the paper feeding direction of the sheet in the folding machine 5, the stacker 1 can be set in an appropriate orientation in a way that corresponds to the paper feeding direction of the folding machine 5.

[0152] Furthermore, the unmanned transport vehicle 20 adjusts the position of the centerline CL1 of the stacker 1 relative to the centerline CL2 of the folding machine 5 when viewed from above, based on the offset information included in the transport instruction information. For example, the positional relationship between the centerline CL1 of the stacker 1 and the centerline CL2 of the folding machine 5 varies depending on the position of the folding knife (not shown) relative to the folding machine 5 located on the centerline CL2, whether the desired folding position is at the center of the paper or offset from the center of the paper. Therefore, the paper feeding position PS2 of the stacker 1 varies depending on the folding machine 5 or the paper size and the desired folding position. Regarding such a paper feeding position PS2, as described above, the stacker control unit 40 and / or the unmanned transport control unit 103 obtain appropriate setting information from the printing overall management device 201 or the transport management device 203. Alternatively, the folding machine 5 can communicate directly with the stacker control unit 40 and / or the unmanned transport control unit 103. For example, when the offset is zero, the unmanned transport vehicle 20, such as Figure 16 As shown, stacker 1 is positioned so that its centerline CL2 coincides with the centerline CL1 of stacker 1 when viewed from above. Furthermore, when the offset of the unmanned transport vehicle 20 is not zero, it adjusts its position according to this offset, as follows: Figure 17 As shown, the stacker 1 is positioned such that the center line CL1 of the stacker 1 is offset relative to the center line CL2 of the folding machine 5.

[0153] When the unmanned transport vehicle 20 configures the stacker 1 at the paper feeding position PS2 corresponding to the offset information, it sends a transport completion signal to the stacker 1 and sends a transport completion signal and its own unmanned transport vehicle ID to the transport management device 203.

[0154] If the conveying management device 203 receives the conveying completion signal and the unmanned conveyor ID (SB5), it sends the conveying completion signal (SB6) to the printing overall management device 201.

[0155] Additionally, the transport management device 203 acquires the battery information of the unmanned transport vehicle 20 that has received the transport completion signal, and determines whether the remaining battery capacity is below a predetermined lower limit. If the remaining battery capacity is below the lower limit, it sends a charging instruction to the unmanned transport vehicle 20 to guide it to the battery station, and changes the transport management information's operation status to "charging state." If the remaining battery capacity exceeds the lower limit, it changes the operation status to "standby state."

[0156] On the other hand, the stacker control unit 40 of the stacker 1, which receives the delivery completion signal from the unmanned transport vehicle 20, controls the direct-acting cylinder 62 to return the stacking rack 22 to a horizontal state. Furthermore, the stacker control unit 40 obtains information about the processing steps (such as the height information of the lifting platform) from the operation information already received from the stacker management device 202, and controls the up-and-down movement motor 46 and the lifting platform motor 78 according to the obtained information.

[0157] Therefore, the lifting platform is activated by motor 78 to position the stacking rack 22 at a paper feeding height position individually set according to the type of folding machine 5. Then, the stacker control unit 40 activates the up-and-down movement motor 46 (see reference 5). Figure 6 Actions, such as Figure 18 As shown, the stop 26 of the stacker 1 is displaced downwards. This is to prevent the paper separator 5a of the folding machine 5 from interfering with the stop 26.

[0158] Additionally, the battery 94 of stacker 1 (see reference) Figure 4 As needed, power is received from the power supply head 96 located near the folding machine 5 via the power receiving head 90.

[0159] When the stacker control unit 40 completes positioning and is ready to feed paper to the folding machine 5, it sends a ready-to-complete signal to the folding machine 5. When the ready-to-complete signal is received from the stacker 1, the folding machine 5 determines whether the upper surface of the stacker 1's lifting platform is detected by an upper surface detection sensor (not shown) located near the paper feed port of the folding machine 5.

[0160] As a result, without detecting the upper surface, the folding machine 5 sends a command to the stacker 1 to raise the lifting platform. The stacker control unit 40 then controls the lifting platform motor 78 to raise the platform. This operation continues until the upper surface of the lifting platform is detected by the upper surface detection sensor. Then, when the upper surface detection sensor detects the upper surface of the lifting platform, the folding machine 5 determines that the stacker 1's lifting platform is positioned correctly and begins folding based on the work information received from the processing machine management device 205.

[0161] Additionally, before starting a job, the folding machine 5 can obtain the stacker ID of the stacker 1 and perform a comparison process to check whether the obtained stacker ID matches the stacker ID associated with the job ID to be started later. By performing such a comparison, it can be confirmed whether the stacker consistent with the job ID to be started later is configured at the paper feed position PS2.

[0162] A sensor is installed near the paper discharge port of the folding machine 5 to detect the discharged paper. The folding machine 5 counts the number of sheets processed based on the detection signal from the sensor. The number of sheets processed is sent from the folding machine 5 directly or via the processing machine management device 205 and the stacker management device 202 to the stacker 1. The stacker control unit 40 controls the lifting platform motor 78 to move the lifting platform to an appropriate height position as processing progresses, based on the relationship between the remaining number of sheets and the height of the paper supply section of the folding machine 5.

[0163] Then, when the count is detected to have reached the number of sheets to be processed as specified by the job information, the folding machine 5 sends a processing job completion signal to the stacker 1 and the processing machine management device 205 configured at the paper feeding position PS2.

[0164] When a processing operation completion signal is received, the stacker control unit 40 of stacker 1 controls the lifting platform motor 78 to lower the lifting platform to its moving position. Additionally, stacker 1 sends the processing operation completion signal and its own stacker ID to the stacker management device 202. When the processing operation completion signal is received (SB7), the stacker management device 202 changes the operating status of the received stacker ID to "standby state" (SB8).

[0165] On the other hand, when the processing machine management device 205 receives the processing operation completion signal from the folding machine 5, it sends the folding machine ID, the operation ID and the processing operation completion signal to the printing overall management device 201.

[0166] If a processing job completion signal is received (SB9), the printing overall management device 201 updates the job management list by changing the status of the processing step for that job ID in the job management list to "completed" (SB10). Then, processing returns to step SB1 and enters a standby state until the next printing job completion signal is received. Alternatively, if a printing job completion signal has already been received, subsequent processing is performed.

[0167] As described above, this embodiment achieves the following effects.

[0168] At the receiving position PS1, the stacking rack 22 is raised or lowered to a predetermined height corresponding to the printing press 3, and at the paper feeding position PS2, the stacking rack 22 is raised or lowered to a predetermined height corresponding to the folding machine 5. This eliminates the need for manual changeover operations, achieving automation. Furthermore, even with combinations of multiple sheet processing machines of different types, such as multiple printing presses 3 and multiple folding machines 5, manpower can be saved in the process from the printing press 3 to the sheet processing machine.

[0169] Since the specified height of the stacking rack 22 is set individually as a set value for each sheet processing machine such as printing press 3 and / or paper folding machine 5, the stacking rack 22 can be raised and lowered to the appropriate specified height even for different types of sheet processing machines such as printing press 3 or paper folding machine 5.

[0170] Since the stacker 1 is equipped with a communication unit 18 that obtains setting values ​​from the printing general management device 201 or the stacker management device 202, which are upper control units, the stacker 1 can flexibly cope with different types of sheet processing machines such as printing presses 3 or folding machines 5.

[0171] Because stacker 1 has an inherent stacker ID13, it can be distinguished from other stackers 1. Thus, a sheet conveying system that can use multiple stackers 1 simultaneously can be realized.

[0172] Because the stacking rack 22 is tilted so that the front is above the rear when the stacker 1 is moving, it is possible to avoid the possibility that the papers S stacked on the stacking rack 22 will fly off and fall off during the movement if the stop 26 or the open side of each paper width guide 28 is not provided.

[0173] Stacker 1 stops operating at the receive position PS1 or the paper feed position PS2. At this time, power is received from the outside by the power receiver 90 to charge the battery 94. Thus, charging can be performed at appropriate timing.

[0174] <Variation Example 1>

[0175] In the above embodiments, a paper folding machine 5 has been described as an example of a processing machine that feeds paper from the stacker 1, but the present invention is not limited thereto. For example, as Figure 19 As shown, the present invention can also be applied to the crease press 6 as a processing machine. That is, when the crease press 6 is registered as a downstream process of the printing press 3 in the work information, the crease press 6 can be stably fed with paper by performing the same processing as described above.

[0176] In the case of the folding machine 6, for example, the stacker control unit 40 of the stacker 1 controls the motor 78 of the lifting table according to the relationship between the number of stacked sheets of paper S and the height of the paper feeding unit of the folding machine 6, and adjusts the lifting table to an appropriate height position as processing proceeds.

[0177] <Variation Example 2>

[0178] In the above embodiment, the movement of the stacker 1 is carried out by the unmanned transport vehicle 20, but the present invention is not limited thereto. For example, as Figure 20 and Figure 21 As shown, casters 110 can also be provided on each of the feet 14 of a portion of the stacker 1, allowing the stacker 1 to move without the use of the unmanned transport vehicle 20. In this case, a handle 112 is provided on the upper rear side of the main body 16 for the operator to transport the stacker 1. The stacker 1 is supported by caster stops 110a (see reference) mounted on the casters 110. Figure 20 It is positioned at a fixed location such as receiving position PS1 or paper feeding position PS2.

[0179] In this configuration, a stacker ID13 is installed on the lower surface of the base 12 on the front F side, and an ID reader 114 is installed near a processing machine such as a printing press 3 or a folding machine 5. The data received by the ID reader 114 is sent to the control unit of the processing machine such as the printing press 3 or the folding machine 5.

[0180] Alternatively, a traveling motor or other traveling device can be installed on the stacker 1 to enable it to move on its own.

[0181] Alternatively, the tilt angle of the stacking rack 22 of the stacker 1 during its movement can be changed according to the amount of paper S stacked. For example, the tilt angle is increased when the amount of paper S stacked is small compared to when it is large.

[0182] The tilt angle of the stacker 22 can also be varied according to the magnitude of the acceleration (including deceleration as negative acceleration) of the stacker 1 during its movement. For example, when the acceleration of the stacker 1 is large, the tilt angle is increased compared to when it is small.

[0183] In the above embodiments and variations, paper was used as an example as the medium conveyed by the stacker 1, but the present invention is not limited thereto. For example, the present invention can be applied to sheet-like media such as resin films.

[0184] Alternatively, a rotation mechanism can be provided to rotate the stacking rack 22 about a vertical axis, and the stacker control unit 40 can be used to rotate the stacking rack 22 about a vertical axis. The rotation mechanism is provided, for example, between the stacking rack 22 and the lifting platform 24, and includes a rotating shaft that supports the stacking rack 22 rotatably about a vertical axis relative to the lifting platform 24, and a rotary motor that rotates the stacking rack 22 about the rotating shaft.

[0185] By including a rotating mechanism, after receiving paper S from printing press 3, after rotating stacking rack 22 by 90°, it can be brought close to paper processing machine such as folding machine 5, and paper S can be supplied in a state where it has been rotated 90° since receiving.

[0186] Instead of the rotating mechanism that rotates the stacking rack 22, the orientation of the paper S can also be changed by rotating the stacker 1 as a whole through the unmanned transport vehicle 20.

[0187] In the above embodiment, communication occurs between the overall printing management device 201 and each management device 202-205. However, the functions of management devices 202-205 can also be included in the overall printing management device 201. Furthermore, communication between the unmanned transport vehicle 20 and the overall printing management device 201 is conducted via the transport management device 203. However, it is also possible to bypass the transport management device 203 and directly exchange information between the unmanned transport vehicle 20 and the overall printing management device 201. Similarly, other management devices can also directly exchange information, for example, the stacker 1, the printing press 3, various processing machines, and the overall printing management device 201.

[0188] In addition, any one of the management devices can also have the functions of other management devices. For example, the machine management device 205 can also have the functions of the stacking management device 202 and the conveying management device 203.

[0189] Figure Labels

[0190] 1. Stacker (paper stacking device)

[0191] 3 printing press

[0192] 3a back

[0193] 3b paper feed outlet

[0194] 5-fold paper machine (sheet processing machine)

[0195] 5a Paper Separator

[0196] 6-fold creasing machine (sheet processing machine)

[0197] 7 Ministry of Communications

[0198] 10 Shelves

[0199] 12 bases

[0200] 12a front end

[0201] 13. Stacker ID (Identification Information)

[0202] 14 feet

[0203] 16 main body sections

[0204] 16a front surface

[0205] 18 Ministry of Communications

[0206] 20 Unmanned transport vehicles (unmanned transport devices)

[0207] 20a wheels

[0208] 20b lifting platform

[0209] 22 stacking racks

[0210] 22a base end

[0211] 24 lifting platforms

[0212] 24a base end

[0213] 26. Stop (Abutment Part)

[0214] 26a Upper and Lower Gear

[0215] 28mm paper width guide (abutment part)

[0216] 30 Stopper travel groove

[0217] 32 brackets

[0218] 34 sliding guide shafts

[0219] 36 feed screw

[0220] 38 positioning motors

[0221] 40 Stacker Control Unit

[0222] 42 pinions

[0223] 44 rotating axes

[0224] 46 Up and down moving motor

[0225] 48 paper width guide groove

[0226] 50 brackets

[0227] 52 sliding guide shaft

[0228] 54 feed screw

[0229] 56 positioning motors

[0230] 60 tilting mechanism

[0231] 62 direct-acting cylinder

[0232] 64 strokes

[0233] 66 resale

[0234] 68 pins

[0235] 70 arm

[0236] 72 chains

[0237] 74 sprocket

[0238] 76 rotating axes

[0239] 77 Lifting Mechanism

[0240] 78 Electric motor for lifting platform

[0241] 80 Synchronous Belt

[0242] 82 worm gear (lifting mechanism)

[0243] 84 rounds

[0244] 86 spur gear

[0245] 88 wheels

[0246] 90° power receiver (power receiving device)

[0247] 92 power supply cable

[0248] 94 batteries

[0249] 96 power connector

[0250] 96A power socket

[0251] 97 Battery Management Device

[0252] 101 Department of Communications

[0253] 103 Unmanned Conveyor Control Department

[0254] 105 ID Reading Department

[0255] 110 casters

[0256] 110a caster stop

[0257] 112 handle

[0258] 114 ID Reading Department

[0259] 120 CPU

[0260] 121 Storage Department

[0261] 122 main memory

[0262] 200 Printing System

[0263] 201 Printing Overall Management Device (Supervisory Control Unit)

[0264] 202 Stacker Management Device (Supervisory Control Unit)

[0265] 203 Conveying Management Device

[0266] 204 Printing Press Management Device

[0267] 205 Machining Machine Management Device

[0268] 210 Management System

[0269] 211 CPU

[0270] 212 Storage Department

[0271] 213 main memory

[0272] 214 Department of Communications

[0273] 215 Input Section

[0274] 216 Display Unit

[0275] 222 Operations Management Department

[0276] 223 Processing Department

[0277] 231 Storage Division

[0278] 232 Information Acquisition Department

[0279] 233 Determination Department

[0280] 234 Department of Communications

[0281] CL1 (Stacker) Centerline

[0282] CL2 (folding machine) centerline

[0283] F (base) front

[0284] FL Flooring

[0285] PS1 receiver location

[0286] PS2 paper feed position (supply position)

[0287] R (base) rear

[0288] S paper

Claims

1. A sheet conveying system, comprising: Printing press; A sheet stacking device configured to receive printed sheets from the printing press at a receiving position and stack the printed sheets; Multiple sheet processing machines supply the printed sheet from the sheet stacking device to any one of the multiple sheet processing machines at a supply position different from the receiving position; An unmanned transport vehicle configured to transport the sheet stacking device from the receiving position to the supply position; A management device configured to manage the printing press, the sheet stacking device, the plurality of sheet processing machines, and the unmanned transport vehicle, wherein the management device is configured to generate transport instruction information for transporting the sheet stacking device from the receiving position to a supply position of any one of the plurality of sheet processing machines based on operation information including manufacturing process steps for manufacturing printed products, and the unmanned transport vehicle is configured to transport the sheet stacking device from the receiving position to a supply position of any one of the plurality of sheet processing machines based on the transport instruction information. The device includes: a shelf section for receiving and stacking sheets printed from a printing press, a lifting mechanism for raising and lowering the shelf section, and a control unit for controlling the lifting mechanism. The control unit, through the lifting mechanism, raises and lowers the shelf section to a first predetermined height corresponding to the printing press at a receiving position, and raises and lowers the shelf section to a second predetermined height corresponding to the sheet processing machine at a supply position. The first predetermined height is obtained from the job information and is set separately according to the type of printing press, and the second predetermined height is obtained from the job information and is set separately according to the type of sheet processing machine.

2. The sheet conveying system according to claim 1, comprising a communication unit that communicates with a higher-level control unit located above the control unit. The communication unit obtains the operation information from the upper control unit.

3. The sheet conveying system according to any one of claims 1 to 2, having inherent identification information.

4. The sheet conveying system according to any one of claims 1 to 2, comprising a tilting mechanism for tilting the shelf portion relative to a horizontal plane and an abutting member abutting against the end of the sheet stacked on the shelf portion, wherein the control unit, by means of the tilting mechanism, tilts the end side of the sheet without the abutting member upward relative to the other end when traveling from the receiving position to the supply position.

5. The sheet conveying system according to any one of claims 1 to 2, comprising: A power receiving device that receives power at the receiving location and / or the supply location, and a battery that stores the power supplied from the power receiving device.

6. The sheet conveying system according to any one of claims 1 to 2, comprising casters that travel on the ground.

7. The sheet conveying system according to any one of claims 1 to 2, comprising a rotating mechanism for rotating the shelf portion about a vertical axis.

8. A control method for a sheet conveying system, the sheet conveying system comprising: Printing press; A sheet stacking device configured to receive printed sheets from the printing press at a receiving position and stack the printed sheets; Multiple sheet processing machines supply the printed sheet from the sheet stacking device to any one of the multiple sheet processing machines at a supply position different from the receiving position; The system also includes an unmanned transport vehicle configured to transport the sheet stacking device from the receiving position to the supply position. The sheet stacking device includes: a shelf portion for receiving and stacking sheets printed from a printing press; and a lifting mechanism for raising and lowering the shelf portion. The control method includes: generating transport instruction information for transporting the sheet stacking device from the receiving position to a supply position of any one of the plurality of sheet processing machines based on operation information including manufacturing process steps for manufacturing printed products; transporting the sheet stacking device from the receiving position to a supply position of any one of the plurality of sheet processing machines based on the transport instruction information; raising and lowering the shelf portion to a first predetermined height corresponding to the printing press at the receiving position via the lifting mechanism, and raising and lowering the shelf portion to a second predetermined height corresponding to the sheet processing machine at the supply position; wherein the first predetermined height is obtained from the operation information and is set individually according to the type of printing press, and the second predetermined height is obtained from the operation information and is set individually according to the type of sheet processing machine.

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