JPH1120297A - Pile of print building boards and building board printing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a pile of print building boards in which even if a worker takes building boards one by one from the top of a pile of building boards in an unpackaged state to install them at the construction site, boards having the same pattern are not repeatedly installed. SOLUTION: In the building board printing device, there are provided a printing means 30 having a gravure roll 31 on the surface of which a plurality of patterns (A-D) are formed, a building board carrying-in means (conveyor, gate GB, etc.), to carry a building board PB into the means 30, a printing start position setting means which can set a printing start position of a pattern for each building board, and an angle sensing means (rotary encoder 45, etc.), to sense a rotation angle between a reference position on the surface of the gravure roll and the set printing start position, and the open/closure timing of the gate GB is adjusted based on a signal from the angle sensing means so that the board PB can be carried toward the printing means so as to be synchronized with the printing start position.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an assembly of printed building boards having a specific printed pattern and a building board printing apparatus for printing such printed building boards.

[0002]

2. Description of the Related Art Heretofore, there has been known a method of using a gravure offset printing machine as a printing method of a building board.
In the gravure offset printing machine, the pattern formed on the peripheral surface of the gravure roll is transferred to the surface of the building board via the offset roll. In that case, the pattern developed on the building board surface is a continuous pattern of the pattern formed on the peripheral surface of the gravure roll. Then, the pattern pattern is the same for each successively produced building board (plate), and the designated number of building boards having the same pattern are printed.

[0003]

For example, when arranging a plurality of building boards such as a tile pattern (or a brick pattern) on a wall surface and laying them together, they are simply pasted in the same direction. Even if the pattern pattern on the surface of the building board is a complex pattern composed of multiple pattern patterns, it will eventually be a repeated pattern of the same pattern pattern, and you will experience a visually monotonous appearance design That is. In order to avoid such a phenomenon,
An operator usually changes the arrangement pitch in the horizontal direction or flips the arrangement up and down to attach a building board while taking care not to form a monotonous repetitive pattern.

In a case where a plurality of pattern patterns are printed at random or close to each other at different positions on individual building boards to be provided for construction, a plurality of prints carried into the construction site in a packed state are required. Even if the building board is unpacked by an operator and the stacked building boards are pasted on the wall in this order, the same pattern pattern will not be repeated and the on-site work will be greatly facilitated.

However, in a printing method using a conventional gravure offset printing machine, in order to print a plurality of patterns in a changed order, a large number of offset rolls having the changed patterns are prepared. It is necessary.
Even if many types of building boards are manufactured, workers at the factory side need to take out building boards at random and stack them up, and the work on the factory side becomes enormous. Therefore, the above method is not a practical solution even if the work on the construction site is facilitated.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and one object of the present invention is to provide the same pattern even when the construction board is unpacked and the construction boards are pasted in order from the top and the construction is performed. An object of the present invention is to provide a printed building board assembly in which a pattern is not repeated. Another object of the present invention is to provide a building board printing apparatus capable of easily preparing the printed building board assembly as described above in a manufacturing factory.

[0007]

According to the present invention, there is provided a printed building board assembly in which a plurality of patterns are continuously printed on one building board. A plurality of types of building boards on which the plurality of patterns are printed in a different order. Since this printed building board aggregate is individually printed in a different pattern in its order, even if the workers at the construction site perform the pasting work in order from the top while unpacking, There is no repetition of the same pattern, and a wall with a high designability can be easily obtained after the construction.

According to another aspect of the present invention, there is provided a building board printing apparatus having a gravure roll having a plurality of patterns formed on a surface thereof, and a building board for carrying the building board into the printing means. Loading means, print start position changing means capable of changing the print start position of the pattern for each plate of the building board, printing of the reference position on the gravure roll surface and the pattern on the building board Angle detection means for detecting a rotation angle between the start position, and a signal for receiving a signal from the angle detection means and sending a signal for loading the building board toward the printing means in synchronization with the print start position. And a building board carry-in instructing means for issuing to the carry-in means.

Preferably, the conveying speed detecting means for detecting the traveling speed of the building board provided to the printing means, the rotating speed detecting means for detecting the rotating speed of the gravure roll, and the detecting means for detecting the rotating speed of the gravure roll. And a synchronizing means for synchronizing the rotation speed of the gravure roll with the traveling speed of the building board detected by the transport speed detecting means.

[0010] According to the above-mentioned building board printing apparatus, it is possible to easily produce many kinds of pattern patterns on the surface of the building board in one printing process and with one gravure roll. Therefore, building boards can be manufactured continuously with a combination of random pattern patterns, and only the required number of sheets of building boards to be produced are packed together in the order in which they are manufactured. Can be obtained. As a result, work and equipment for pattern matching at the time of packing at the factory become unnecessary, and the amount of work at the construction site is reduced, and the labor for attaching the building boards is greatly reduced. In addition, even when building boards of the same lot are constructed at a plurality of locations, it is possible to prevent with high probability that the same pattern is formed at the wall construction site, so that the appearance of the individuality of each house can be sufficiently expected.

In the present invention, the term "building board" refers to, for example, an inorganic board such as a fiber reinforced cement board, a gypsum board, a calcium silicate board, a magnesium carbonate board, a hard board,
It refers to a wood fiber board such as a medium density fiber board, and the material is not particularly limited.

[0012]

BRIEF DESCRIPTION OF THE DRAWINGS FIG.
The present invention will be described in more detail. FIG. 1 is a view for explaining a building board printing apparatus suitable for obtaining a printed building board assembly according to the present invention, and FIG. 2 is an enlarged view for explaining the printing means in more detail. Building board printing device 100
Are roughly divided into a construction board (hereinafter, referred to as a “panel” in this embodiment) loading means 10, a printing means 30, and a control device (not shown).

The carrying-in means 10 is optional as long as it has a function capable of temporarily stopping the carrying-in of the panel PB to the printing means 30, as described later. In the apparatus shown in FIG. A first supply conveyor 12 (drive motor M1 is not shown) composed of a number of roller conveyors 11, usually called a panel feeder, and a first indexer, usually called a belt conveyor 21, located downstream of the first supply conveyor 12 2 supply conveyor 22
(The drive motor M2 is not shown). A gate G for temporarily stopping the panel PB to be conveyed is provided to the first supply conveyor 12 and the second supply conveyor 22.
A, a gate GB is arranged, and a lifter 24 for keeping the panel PB in a stopped state in a non-contact state with the belt conveyor 21 is provided on the second supply conveyor 22.

A line conveyor 2 composed of a number of roller conveyors 1 is located on the upstream side of the first supply conveyor 12, and the panel PB is placed on the side of the loading means 10 on the building board printing apparatus 100 side. That is, it is delivered to the first supply conveyor 12). Preferably, the transport speed of the first supply conveyor 12 is higher than the transport speed of the line conveyor 2.

The printing means 30 has a main structure similar to that of a normal offset printing apparatus, and includes a gravure roll 31, an offset roll 32 which rotates in contact with the gravure roll 31, and a position below the offset roll 32. And an impression roll 33 for pressing the printing material (panel PB) against the offset roll 32, and a building board conveyor 34 described later is located near the rear end of the belt conveyor 21 of the second supply conveyor 22. Let it be arranged.

A plurality of pattern patterns are formed on the surface of the gravure roll 31 with a predetermined angular range in the circumferential direction as one section. In this example, as shown in FIG. Four patterns (pattern blocks) A, B,
C and D are formed. A rotary encoder 45 is attached to the rotation axis of the gravure roll 31, and detects the rotation amount (angle) of the gravure roll 31.

In FIG. 2, reference numeral 35 denotes an ink pan;
The ink is applied to the gravure roll 31 via the ink discharging roller 36. Reference numeral 37 denotes a thinner pan for cleaning the offset roll 32, and reference numerals 38 and 39 denote doctor blades for scraping off unnecessary ink.

In the printing means 30 according to the present invention,
Detection means 40 is provided for detecting whether the reference point of the gravure roll 31 has passed a predetermined position. In this example,
The detecting means 40 includes a pin 41 erected on the side surface of the gravure roll 31 and a transmission type photo interrupter 42 fixedly arranged on the machine frame side of the printing means 30 (see also FIG. 14). Further, as described above, a rotary encoder 45 for detecting the rotation angle of the gravure roll 31 is attached to the gravure roll 31, and signals from the detection means 40 and the rotary encoder 45 are sent to a control device (not shown). Then, the control device issues an opening / closing signal for the gate GB in response to the signal.

Although not essential, the gravure roll 31 and the offset roll 3
Reference numeral 2 denotes a rotary motor which is rotated by transmitting the rotation of a servo motor (M3) (not shown) by a rotation transmission mechanism composed of a sprocket and a chain. The motor 32 is driven by a servomotor (M4) separate from the servomotor (M3) for driving the motor 32. Two presence detection sensors (photoelectric switches in this example) 43 and 44 are arranged at intervals on the construction board conveyance path of the construction board conveyance conveyor 34, and the position U2 of the photoelectric switch 43 and the photoelectric switch 44 are arranged. Is detected, and the servo motor (M3) for driving the gravure roll 31 and the offset roll 32 is controlled so as to synchronize with the speed. Thereby, a pattern shift at the print position is avoided.

With the above configuration, the ink on the gravure roll 31, that is, the pattern block (A → B → C → D → A.
2) is transferred to the offset roll 32 side at the position T in FIG. 2, and the transferred pattern is printed on the surface of the panel PB at the position P. Therefore, for example, the pin 4 provided at the starting point (see also FIG. 3A) of the pattern block A in the four pattern blocks (A, B, C, D) on the surface of the gravure roll 31
The gate GB provided on the second supply conveyor 22 is opened by a signal indicating that the first one has passed the position S1 of the photointerrupter 42, and the ink at the starting point is offset from the gravure roll 31 at the T position. The time T when the image is transferred to the roll 32 and reaches the printing position P, and the panel PB stopped at the position U1 of the gate GB starts to advance by opening the gate GB, and the leading end reaches the printing position P. The two servomotors M3 and M3 so that the time T before
4 by controlling panel PB in FIG.
As shown in (1), four pattern blocks (A, B, C,
D), starting from the pattern block A, obtains one (version) printed construction board of the pattern pattern repeatedly printed.

If it is desired to print the same pattern pattern on the next building board, that is, a pattern pattern of A → B → C → D → A. With the building board stopped at the position of the gate GB, the pins 41 are again connected to the photointerrupter 4.
The gate GB provided on the second supply conveyor 22 may be opened by a signal indicating that the vehicle has passed the second position S1. However, in this case, although the building board to be printed has four types of patterns, the pattern patterns are the same, and when stacked and packed and shipped as it is, the wall surface tends to be monotonous.

Therefore, according to the present invention, from obtaining a signal indicating that the pin 41 has passed the position S1 of the photointerrupter 42 to issuing a signal for opening the gate GB provided on the second supply conveyor 22. , An arbitrary time difference can be set, and after the time difference, the gate G
Release B. The arbitrary time difference may be a random time difference or may be a specific repetition. For example, as shown in FIG. 2, when a signal indicating that the pin 41 has passed the position S1 of the photointerrupter 42 is obtained, and then the opening signal of the gate GB is output when the gravure roll 31 further rotates 90 degrees. Figure 3b (2)
As shown in FIG. 3B, when an architectural board having a pattern pattern whose initial pattern pattern starts with the pattern block B is obtained and an opening signal of the gate GB is output at the time of rotating by 180 degrees, as shown in FIG. When an architectural board having a pattern pattern in which the pattern block starts with C is obtained, and when the opening signal of the gate GB is output at the time when the pattern block is rotated by 270 degrees, as shown in FIG. A building board with a starting pattern is obtained.

In addition, the control device includes the above-mentioned FIG.
(4) From a table storing which pattern of a building pattern having which pattern is to be printed and in which order, or from means for randomly selecting a pattern from (1) to (4) by random number generation A print start position changing means for the print pattern 30 is provided, and in accordance with an instruction from the print start position changing means, the print means 30
Is printed continuously. As a result, an assembly of a plurality of types of building boards on which the four types of pattern blocks (A, B, C, D) are printed in a different order can be easily produced.

A worker in a factory stacks building boards (panels) to be printed in that order and packs them for each required number of sheets. The packaged product is shipped as it is and carried into the construction site, but the worker at the construction site simply unpacks it and pastes it in order from the top, without a specific repetitive pattern, high design It is possible to easily construct a wall or the like having a property.

Next, regarding the specific operation of the printing apparatus according to the present invention, each of the four types of pattern blocks (A, B, C, and D) each having a range of 90 degrees shown in FIG. The printing means 30 having a gravure roll 31 in which a pattern pattern (see FIG. 4) composed of pattern blocks having pattern rows (1, 2, 3) divided for each is described as an example. FIG. 5 is a block diagram illustrating a control system of the entire apparatus. As shown in FIG. 6, the controller operates the drive motor M1 to drive the first supply conveyor 12 shown in FIG. 1 and to control the opening and closing of the gate GA. The controller operates the drive motor M2. It drives the second supply conveyor 22 shown in FIG. 1 and controls the opening and closing of the gate GB. The controller operates the servomotor M3 for driving the controller, synchronizes the printing speed with the traveling speed of the panel via the tachometer TG (including the desired adjustment in the test version), and FIGS. As shown in FIG. 13, detection of a time difference until the gate GB is opened corresponding to the selection of the pattern control pattern and the input start pattern data (indicating the print start position), and the change of the print start position based on the detection signal. The operation of issuing a signal to the building board carrying means to carry the building board toward the printing means so as to synchronize the operation with the building board carrying means. Note that the controller is preferably a programmable controller,
The controller is preferably a personal computer.

The panel PB to be printed is carried from the line conveyor 2 to the first supply conveyor 12 of the printing apparatus 100. The opening and closing of the gate GA and the operation stop of the supply conveyor 12 are controlled by the control device, and the panel PB is stopped on the first supply conveyor 12 as necessary, and when the receiving system on the downstream side is established, , To the second supply conveyor 22. The second supply conveyor 22 closes the gate GB and stops the panel PB until the receiving system on the downstream side (printing means 30) is ready. At that time, the lifter 24 is raised and the panel PB
Evacuate temporarily. When the receiving system of the printing means 30 is ready, the gate GB is opened and the panel PB is sent out to the printing means 30.

The receiving system of the printing means 30 is controlled and detected as follows. First, as shown in the flow of the controller in FIG. 7, the control device is inputted with information on the design block, the pattern sequence, and the control pattern to be used, which are the start pattern data (referred to as ji), and holds the information in the register. Is done. In this example, the following five control patterns are assumed.

(1) Pattern block (A, B, C, D) order, no change. (2) Pattern blocks (A, B, C, D) are sequentially switched. (3) Pattern block (A, B, C, D) random switching. (4) Pattern rows (1, 2, 3) are sequentially switched. (5) Pattern row (1, 2, 3) random switching.

A servo motor M3 for driving the gravure roll 31 is driven by a motor drive circuit (see FIG. 5). Preferably, the speed of the servomotor M3 and the speed of the servomotor M4 for driving the building board conveyor 34 are reduced in order to run a test panel and use the information from the tachogenerator TG to eliminate print misalignment. To synchronize. As shown in FIG. 8, the servo motor rotation speed control is performed by controlling the time required for the panel PB to pass between the position U2 of the photoelectric switch 43 and the position U3 of the photoelectric switch 44 shown in FIG. Adjust based on the deviation of

After the adjustment, printing is performed for each version of the building board according to the start pattern data ji and the control pattern held in the register. With the gate GB closed, each motor is driven to obtain a signal (pin detection signal) from the detection means 40 attached to the gravure roll 31. FIG. 14B shows a signal circuit in this example, in which a light interrupting portion of a photointerrupter 42 in which a light emitting portion formed of an LED and a light receiving portion formed of a phototransistor are arranged at a predetermined interval, and a pin 41
Is passed, light is shielded, and the light receiving element is turned off. A well-known Schmitt trigger is connected to the output unit to form a waveform. This example is an example,
The means for obtaining the passing signal may be arbitrary.

FIG. 15 shows a rotary encoder 45 for detecting the rotation amount (angle) of the gravure roll 31.
FIG. 15B shows the detection circuit unit. In this example, the logic circuit has phase A, phase B
The rotation direction of the encoder 45 is detected from the phase pulse state transition, and the detection signal UP / DOWN and the enable signal EN are detected.
Find and output ABLE. Since the encoder normally outputs a Z-phase pulse that is generated once per rotation, a CLEAR signal is generated from this pulse, and the up / down counter is cleared to zero, thereby changing the counter value to the mechanical position of the encoder. To match exactly. In the up / down counter, the signal UP is determined according to the rising edge of the synchronization signal clock and the presence or absence of the ENABLE signal.
/ DOWN counts up or down. The count value is transferred to the buffer at the rise of the clock signal, and the buffer output FBKCNT is input to the input port of the controller.

After the input of the signal from the detection means 40,
The pulse counting of the rotary encoder 45 is started. Then, when a predetermined number of pulses corresponding to the start pattern data ji are counted, an open signal of the gate GB is sent to the controller. Here, i is a version number, and i =
1 to n (n is the total number of editions). Also, j is the input design block number, and here j = 1 to 4.

The control pattern of the start pattern data ji is (1) "pattern block (A, B, C, D) order, no change".
In the case of (1), it is repeated according to the planned version number (i = n) according to “is the control pattern (1)?” In FIG. In this case, the same pattern pattern printed with the start pattern data ji is repeated, and is a control pattern in a conventional printing apparatus.

If the control pattern is (2) "sequential switching of pattern blocks (A, B, C, D)", FIG.
"Control pattern (2)?" Here, the data is cleared for each building board, and for each version i (+1),
The start pattern data ji is sequentially updated. For each scheduled start pattern data ji (+1), a corresponding predetermined number of pulses are counted, and after the counting, an open signal of the gate GB is sent to the controller. The above process is repeated for the expected number of versions (i = n). As a result, a printed building board having the pattern patterns in the order shown in FIGS. 3B (1) to (4) is obtained.

"Control pattern (3)?" In FIG.
Indicates that the control pattern is (3) "pattern block (A, B,
C, D) random switching ”, in which a random number R is generated and the pattern block (A, B, C,
The print order of D) is randomly controlled. In this case, the printed construction board having any of the pattern patterns shown in FIGS.
n) are randomly produced.

"Control pattern (4)?" In FIG.
In addition, the “control pattern (5)?” In FIG. 13 includes the control pattern (4) “pattern sequence (1, 2, 3) sequential switching” and the control pattern (5) “pattern sequence (1, 2,3)
Random switching ", where k
Is an input pattern row number, and is an integer of k = 1 to 3 in this example. The predetermined number of pulses corresponding to the start pattern data ji in the control patterns (1) to (3) is 90 degrees (0, 90, 180, 270) in the rotary encoder 45.
In this case, each pulse corresponds to 30 degrees (90 degrees / 3) (0, 30, 60,
90,... 270). According to this control pattern, for example, a printed construction board having a pattern pattern that is further finely divided as illustrated in a part of FIGS.
n) are produced in that order or in random order.

As described above, according to the building board printing apparatus of the present invention, by inputting the printing start pattern data and the control pattern from the input unit, the building board on which desired different types of pattern patterns are printed. It is possible to continuously produce boards (panels), and simply stack and stack the produced building boards and carry them into the construction site. In addition, it is possible to reliably obtain a wall surface or the like having a high design without repeating patterns.

In the above description, the gravure roll 3
1 rotation speed and building board (panel) to print means 30
Although the control for synchronizing the running speed of the PB has been described as being performed at the start of printing, it is of course possible to construct a system in which the synchronization control shown in FIG. 8 is performed for each plate. As a result, it is possible to produce a beautiful printed building board without any printing displacement.

[0039]

According to the building board printing apparatus of the present invention,
It is possible to continuously produce building boards (panels) on which desired different types of pattern patterns are printed. As a result, the building board assembly obtained by simply stacking and packing the obtained building boards is carried into the construction site, and at the site, only the ones from the upper one are taken out and simply pasted, and the construction is repeated without a repeated pattern. It is possible to reliably obtain a wall surface or the like having a design property, and the construction is greatly reduced in labor.

[Brief description of the drawings]

FIG. 1 is a diagram illustrating a building board printing apparatus suitable for obtaining a printed building board assembly according to the present invention.

FIG. 2 is an enlarged view for explaining the printing means in more detail.

FIG. 3 is a view illustrating a pattern block formed on a gravure roll and a pattern block array pattern of a building board to be produced.

FIG. 4 is a view for explaining another example of a pattern block arrangement pattern of a building board to be produced.

FIG. 5 is a block diagram illustrating a control system of the entire building board printing apparatus.

FIG. 6 is a diagram showing a control flow in a controller.

FIG. 7 is a diagram showing a control flow in a controller.

FIG. 8 is a diagram showing a flow of speed synchronization control in the controller.

FIG. 9 is a diagram showing a control flow in a specific control pattern in the controller.

FIG. 10 is a diagram showing a control flow in another specific control pattern in the controller.

FIG. 11 is a diagram showing a control flow in another specific control pattern in the controller.

FIG. 12 is a diagram showing a control flow in another specific control pattern in the controller.

FIG. 13 is a diagram showing a control flow in another specific control pattern in the controller.

FIG. 14 is a diagram showing a detecting means for setting a pattern reference position provided on the gravure roll and its circuit.

FIG. 15 is a diagram showing a detection circuit for detecting a rotation amount (angle) of a gravure roll.

[Explanation of symbols]

PB: building board (panel), GA, GB: gate, 10 ...
Loading means, 30 printing means, 31 gravure rolls, 32 offset rolls, 33 impression rolls, A, B, C, D ... patterns (pattern blocks) formed on gravure rolls, 40 reference position setting Detecting means (41 ... pin, 42 ... photo interrupter), 10
0: Building board printing device, P: Print position, T: Transfer position, S1: Count start reference position

Claims (3)

[Claims] 1. An assembly of building boards on which a plurality of patterns are continuously printed on one building board, wherein the set is formed by printing the plurality of patterns in a different order. A printed building board assembly comprising a plurality of types of building boards. 2. A printing means having a gravure roll having a plurality of patterns formed on a surface thereof, a building board loading means for loading a building board into the printing means, and a printing start position of the pattern for each plate of the building board. A print start position change unit that can change the angle of rotation, an angle detection unit that detects a rotation angle between a reference position on the gravure roll surface and a print start position of the pattern on the building board, A building board carry-in instructing means for receiving a signal from the angle detecting means and issuing a signal for carrying the building board toward the printing means so as to synchronize with the printing start position to the building board carrying means. An architectural board printing apparatus, characterized in that: 3. A conveying speed detecting means for detecting a running speed of a building board carried into a printing means, a rotating speed detecting means for detecting a rotating speed of a gravure roll, and the gravure detected by the rotating speed detecting means. 3. The building board printing apparatus according to claim 2, further comprising: synchronizing means for synchronizing the rotation speed of the roll and the traveling speed of the building board detected by the transport speed detecting means.