JPH03193438A - Method and apparatus for working sheet - Google Patents

Abstract

PURPOSE:To give an appropriate work in accordance with the length of a sheet, and enable a necessary work to be effected even in the central part by transporting a lengthened sheet in the longitudinal direction, and providing necessary rollers in line on the transporting path in the form of being spaced apart from the sheet, furthermore, making the working rollers abut on the sheet at the time when the part of the sheet to be worked opposes the working rollers. CONSTITUTION:In the working process relative to sheets 1, at first, one sheet 1 is forwarded by means of a kicker 49. And, the punching 4 of the tip side is carried out by the first working roller 14. The work of punching 4 of the tip side is completed, and the first working roller 14 rises, and then the tip printing 6 is executed by the second working roller. When the tip printing 6 is finished, the sheet 1 is transported, as it were, to the next working position without being performed any work. In the next place, the sheet 1 is subjected to the punching 7 of the rear end side by means of the third working roller 16, and the central part printing 9 is conducted by means of the final fifth working roller 18. Next, the rear end printing 8 is accomplished relative to the sheet 1 by means of the fourth working roller 17. Following this, the sheet 1 is sent merely without being effected any work, and then piled up on the rear end side stocker 12 via a delivery conveyor 19. In this fashion, necessary works can be done exactly at a predetermined position.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a cardboard box used for packaging products with very long sides, such as building materials such as sash and other bar materials, and wall materials. When performing various processing such as printing to indicate the type, trademark, and other patterns, crease lines, and side punching to form each piece necessary to form a box, etc. on the sheet for forming the box. This article relates to applicable sheet processing methods and apparatus.

[Conventional technology]

As a means of applying the necessary processing to sheets for forming corrugated boxes, there is a technology in which multiple processing rollers are arranged in a row and the sheets are sequentially transferred to perform the necessary processing.
For example, it is disclosed in Japanese Patent Publication No. 58-17022.

Furthermore, Japanese Patent Application Laid-Open No. 61-237627 discloses a means for processing a sheet for manufacturing a long box for packaging a long and narrow product.

[Problem to be Solved by the Invention] By the way, when a sheet, particularly a long sheet, is subjected to various processing to make a box, the sheet is not limited to a single size, but has various longitudinal dimensions. It is hoped that the process will be able to accommodate different types of materials.

However, the technique disclosed in the above-mentioned former publication does not disclose anything about the processing roller, so although it is not clear, it is intended for sheets with a specific length, and it is judged that it is not suitable for long sheets. In addition, the technology disclosed in the latter publication is one in which the left and right base frames for sandwiching and processing both ends of a long sheet are installed so that the interval between them can be adjusted, and a processing roller is provided on the base frame. The sheet is placed on a conveyor and processed while being fed.In this process, a long sheet is transferred horizontally, that is, with the longitudinal direction of the sheet perpendicular to the feeding direction, and both ends of the sheet are processed. However, it is not possible to process the central part.

In the present invention, necessary processing rollers are arranged in a row, and the object is to be able to process the sheet appropriately depending on the length of the sheet to be processed, and to also perform the required processing on the central part. The purpose of the present invention is to provide a sheet processing method and apparatus.

[Means to solve the problem]

The solution according to the present invention is to transport a long sheet along its longitudinal direction, and to arrange required processing rollers in a row along the transport path at a distance from the processing surface of the sheet, so that the processing section of the sheet is moved by the processing rollers. The gist is to process the sheet by bringing the processing roller into contact with the sheet at the point when it faces the sheet.

As another solution, the rotational drive to the processing roller is cut off, and another rotational force is applied to the processing roller to adjust the phase of the processing roller to match the processing position of the sheet. Perform the required processing at the predetermined position depending on the length.

Furthermore, the processing apparatus for carrying out the method includes a stocker in which the sheets are stacked in parallel to a transfer path whose longitudinal direction is constituted by a plurality of feed rollers, a picker for feeding the sheets to be deposited on the stocker, and a support for feeding the sheets in an orderly manner. A guide, each required processing roller installed along the transfer path apart from the sheet processing surface, and a separating device that brings the rotating processing roller into contact with and separates from the sheet processing surface. This is the summary.

Further, the processing roller is provided with a clutch that disconnects the rotational drive device, and a processing position adjustment device is attached to the processing roller that adjusts the processing phase when the processing roller is in a free rotation state.

[For production]

Since the sheet is transported along its longitudinal direction and processed by contacting the processing roller with the sheet, the required processing can be reliably performed at a predetermined position even if the sheet is long.

Furthermore, by adjusting the phase of the processing roller to match the processing position of the sheet, it is possible to handle sheets of different lengths.

〔Example〕

To explain the present invention specifically, the sheet 1 is processed as shown in FIGS. 3 to 5, and then formed into a packaging box 2 as shown in FIG. The box forming process is irrelevant.

In the case shown in FIG. 3, a plurality of vertical ruled lines 3 have already been carved along the longitudinal direction on the sheet 1 as shown in FIG. During the transfer,
First, as shown in the figure (B), side punching 4 (shaded area in the figure) is performed on the leading edge of the sheet 1 in the transport direction, and at the same time, horizontal ruled lines 5 are carved.Next, printing 6 is applied to the leading edge, and the process continues. (C) As shown in the figure, side punching 7 and horizontal ruled lines 5 are added to the rear end, and printing 8 is applied to the rear end, and finally (
D) This is an example in which printing 9 is performed in the center of the sheet 1 as shown in the figure.

The case shown in FIG. 4 is an example in which there is no printing step among the processing shown in FIG.

In the case shown in Figure 5, there are already multiple vertical ruled lines 3 and 3 on the sheet 1.
This is an example in which the sheet 1 is subjected to side punching, and only the printing steps 6 and 9 are performed one after the other.

In addition, each of the above-mentioned spaces is processed by supplying a sheet 1 with vertical ruled lines 3 carved in advance, but during the above series of processing, the vertical ruled lines 3
In some cases, a process of engraving is performed.

The above-mentioned processes are carried out by the apparatus shown in FIG. feed roller 13...
・And various processing rollers 14゜15.16, 17.18
are sequentially provided via the feed roller 13, and a feed conveyor 19 is interposed between the final processing roller 18 and the end-side stocker 12.

The stocker 11 on the starting end side is formed so that a large number of sheets 1 are stacked so that their elongated directions are parallel to the transfer path 10, and a plate-like shape that hangs down from above on both the front and rear sides of the stacked sheets 1. The supporting guides 20 . . . maintain the stacked state in an orderly manner and at the same time maintain linearity during supply. In addition, the stocker 12 on the terminal side sequentially stacks processed sheets 1 in parallel with the transfer path 10.
This also includes a support guide 20.

The feed roller 13 is composed of a pair of upper and lower rollers, and both the upper and lower rollers rotate.

The processing rollers 14 to 18 are respectively disposed opposite to the anvil roller 21, and furthermore, the processing rollers 14 to 18 are swung vertically relative to the anvil roller 21 by a separating device 22, and the processing rollers 14 to 18 are moved at a predetermined position of the sheet 1 to be transported. 14
- 18 perform the required processing in close proximity to the anvil roller 21, and move away from the anvil roller 21 after processing. (see figure). Moreover, the processing rollers 14 to 18 complete the required processing on the sheet 1 at a predetermined position in one rotation. The processing roller 14 that performs the side punching process has a punching blade 25 and a horizontal creasing blade 26, which form, for example, the diagonal line portion shown in FIG. 3, removably attached to the outer peripheral surface. Further, the processing rollers 15, 17, 18 for printing are provided with characters and figures on their outer peripheral surfaces, and as shown in FIG.
0, and a printing ink reservoir tank 27 (see FIG. 13) is provided below to supply ink.

The separating device 22 is shown in FIGS. 6 to 8, and will be explained with reference to one processing roller 14. Although the frame is omitted in the figure, a processing roller 14 is attached to a pair of left and right swinging arms 28 (one side is omitted in the figure) pivoted to the frame.
A trouble joint 29 is interposed between the tip of each swing arm 28 and the upper part of the frame, and the piston rod 31 of the first cylinder 30 is connected to the central connection part of the trouble joint 29. . Therefore, by driving the first cylinder 30 backward, the trouble joint 29 stands upright as shown in FIG. , (B), the trouble joint 29 bends and raises the processing roller 14.The rotation drive device 23 for the processing roller 14 and anvil roller 21 is as shown in Fig. 8(A). A driven gear 32, 33 is provided on each support shaft, and an intermediate gear 34.
It is connected to a motor (not shown) via 35.

By the way, the processing position adjustment device 24 for accurately applying the required processing to the appropriate position according to the length of the sheet 1 with the processing rollers 14 to 18 may be operated manually or automatically, but as shown in FIGS. 6 and 7. As shown, the shaft 14 of the processing roller 14
A dog clutch 36 is interposed between the driven gear 32 and the driven gear 32, a scale plate 37 provided integrally with the shaft 14a of the processing roller 14 faces the driven gear 32, and an indicator plate 38 with a transparent arrow attached to the driven gear 32. Clutch 36
The phase is set by separating the processing roller 14 and its driven gear 32, manually rotating the processing roller 14, and aligning a predetermined scale on the scale plate 37 with the arrow on the indicator plate 38. On the other hand, the structure for automatically setting the shaft 1 of the processing roller 14 is as shown in FIG.
Adjustment driven *I on rpJ@ section opposite to the clutch side of 4a
[39 is fixed, and a support plate 41 is provided at the lower part thereof, which is pivoted to the frame and swings up and down by the second cylinder 40, and the adjustment driven gear is attached to the output shaft of the motor 42, which is not fixed to the support plate 41. A binion 43 that meshes with 39 is attached,
While the processing roller 14 is lowered and processed as shown in FIG. 9, the support plate 41 is kept in the lowered state.
When adjusting the phase, with the processing roller 14 raised as shown in FIG. 6, the support plate 41 is raised by the second cylinder 40 as shown in FIG. After meshing, the phase is adjusted by driving the motor 42 while visually observing the scale plate 37 mentioned above.

Furthermore, a means for complete automation is shown in Fig. 11,
In order to show the main parts of the support plate 41 in the figure, this is shown inverted, and the support plate 41 has a motor 42 and a timing belt 44
- A dock 46 is provided protruding from the end of the shaft 14a on which the force adjustment driven gear 39 is attached, a sensor 47 is set opposite to this, and a control device 48 for these is provided. As shown in FIG. 10, the support plate 41 is raised and the pinion 43 is engaged with the adjusting driven gear 39, and then the motor 42 is driven.
The rotational phase of the motor 42 is detected by a sensor 47, and the motor 42 is controlled by the output of an encoder 45 to determine the angle of further rotation based on the detected position.

The sheet 1 is moved along the transport path 10 configured as described above.
Although not shown, the means for supplying the stacked sheets 1 from the stocker 11 on the starting end side is such that the stocker 11 is successively raised to hold the uppermost sheet 1 of the stacked sheets 1 at the height position of the transport path 10.

On the other hand, as shown in FIG. 12(A), a kicker 49 is provided above so as to be movable back and forth in parallel with the transfer path 10, and a vacuum suction device 50 is provided so as to be movable up and down, as shown in FIG. 12(B). Move the suction device 50 up and down to suck up one sheet 1 (
C) Move the kicker 49 forward to the supply side as shown in the figure, and remove the suction device 5.
By releasing the suction force caused by 0, the edge of the sheet 1 sucked up by the picker 49 is stopped, and as shown in the figure, by further advancing the picker 49, it is transferred to the first feed roller 13 of the transfer path 10. At this time, as shown in FIG. 13, a guiding guide 51 having an inclined tip is provided to ensure that the tip of the sheet 1 to be fed is directed toward the feed roller 13.

Therefore, the processing steps for the sheet 1 supplied as described above will be explained with reference to FIG.

(A) shows the state in which the sheet 1 is fed, and as described above, one sheet 1 is fed by the puncher 49. At this time, the first processing roller 14 for punching the end side closest to the stocker 11 has already been moved. It is close to the anvil roller 21. The other processing rollers 15 to 18 may also be located close to the opposing anvil roller 21, or may be separated and on standby.

(B) In the figure, the leading edge side punching 4 has been performed on the preceding sheet 1 by the first processing roller 14, and the second processing roller 15 for printing the next edge is replenished with ink and is waiting in a state ready for processing. There is. Meanwhile, the feeder 49 is preparing to supply the next sheet 1.

In the figure (C), the processing of the front end side punching 4 has been completed, the first processing roller 14 has been raised, and the second processing roller 15 is performing the front end printing 6.

In the figure (D), the leading edge printing 6 has been completed and the sheet 1 is transported as it is to the next processing position without being processed. In this process, the supply of the next sheet 1 is started.

(E) The figure shows that the next supplied sheet 1 begins to be processed.
The trailing edge side punching 7 of the preceding sheet 1 is performed by the third processing roller 16, and the final fifth processing roller 1
At step 8, printing is performed in the center.

In the figure (F), leading edge printing 6 is being performed on the succeeding sheet 1, while trailing edge printing 8 is being performed on the preceding sheet 1 by the fourth processing roller 17. Note that printing in the center continues during this process.

(G) In the figure, both the succeeding sheet 1 and the preceding sheet 1 are simply fed without being processed.

Note that the preceding sheet 1 is deposited on the rear end side stocker 12 via the delivery conveyor 19.

Repeat each of the above steps in order to
The sheet 1 deposited on the sheet 1 is subjected to necessary processing. However, depending on the content of the processing, it is sufficient to select and install the processing rollers 14 to 18. Also, the sheet 1 has vertical ruled lines 3
is already engraved, but it is not necessarily limited to this, and if a processing roller (not shown) equipped with a blade for engraving vertical ruled lines is provided in the transfer path 10, no problem can be achieved. We can supply unprocessed sheets.

〔Effect of the invention〕

In the sheet processing method according to the present invention, a long sheet is transported along its longitudinal direction, and required processing rollers are arranged in a row on the transport path at a distance from the processing surface of the sheet, and the processing section of the sheet is The main idea is that the processing roller contacts the sheet when it faces the processing roller, so that no matter how long the sheet is, the required processing can be done reliably at the predetermined position. It is something that Furthermore, since processing is performed using processing rollers having various processing contents, it is possible to select one of them for processing, and therefore it can be applied to sheets assembled into various packaging boxes.

In addition, if the method is to cut off the rotational drive transmission path of the processing roller and change the phase of the processing roller as it rotates freely, even if the length of the sheet to be processed is different,
To cope with this, it is now possible to perform the required processing at a predetermined position, and no matter how different lengths of sheets are supplied, the required processing can be performed at a predetermined position.

Next, the processing device according to the present invention includes a stocker in which the sheets are stacked in parallel with a transfer path whose longitudinal direction is constituted by a plurality of feed rollers, a picker that supplies the sheets to be deposited on the stocker, and a guide that feeds the sheets in an orderly manner. , the required processing rollers are installed along the transfer path so as to be separated from the sheet processing surface, and the rotating processing roller is constituted by a separating device and a rotary drive device that contact and move away from the sheet processing surface. The main idea is that no matter how long the sheet is fed from the stocker, it can be fed reliably while maintaining linearity. Furthermore, since the processing roller is moved close to the sheet by the separating device, the required processing can be performed at a predetermined position on a long sheet. Furthermore, since each processing roller is provided via a feed roller, even if twisting force is applied to the sheet in the processing section, the sheet is guided linearly by the feed roller and is accurately fed and processed without bending. It is.

Furthermore, if a processing position adjustment device is provided, it is possible to adjust the phase of each processing roller, and processing can be performed on sheets of various lengths instead of being limited to one type of length. It is possible.

[Brief explanation of drawings]

FIG. 1 is a perspective view showing an apparatus for implementing the sheet processing method according to the present invention, FIG. 2 is a perspective view showing an example of a packaging box formed by the sheet processing method according to the present invention, and FIG.
~D) Figures, (A~D) in Figure 4, (A~C) in Figure 5
6 is a front view showing several examples processed by the sheet processing method according to the present invention; FIG. 6 is a perspective view showing a rotary drive device, a separating device, and a processing position adjusting device of the sheet processing apparatus according to the present invention; FIG. The figure is a front view showing the indicating section of the processing position adjustment device, Figures (A, B) of Fig. 8 are front views showing the operation of the separation device, and Figures 9 and 10 are front views showing the operation of the processing position adjustment device. FIG. 11 is a perspective view showing another example of the processing position adjustment device, FIG. A-G
) is a side view showing the process from sheet supply to completion of processing. 1... Sheet 3... Vertical ruled lines 4.7... Side punching 5... Horizontal ruled lines 6.8.9... Printing 10
...transfer path 11.12...stocker 13...
・Feed rollers 14 to 18...processing rollers 21...
Anvil roller 22... Separation device 23... Rotation drive device 24... Machining position adjustment device t 36... Clutch 49... Kicker 50... Suction device 7 Fig. 7 Fig. 195-th ( A) Figure 9 (B) 9 1 1 (C) (D)

Claims (1)

[Claims] 1. Printing on a rectangular sheet (1) to be formed into a long cardboard box using processing rollers (14 to 18);
When applying processing such as ruled lines and side punching, the sheet (
1) along its longitudinal direction, and the required processing rollers (14 to 18) that are sequentially separated and on standby along the transport path (10) of the sheet (1) are moved to the position where the sheet is to be processed. 2. Sheet processing method 2, characterized in that each time the processing roller faces the sheet, the processing roller is brought into contact with the sheet to perform the required processing. The processing roller (14) is transferred to the processing roller (14
The method 3 for sheet processing according to claim 1, characterized in that the phases of the sheets (18) to 18) are adjusted and set.
1) is provided with a stocker (11) whose longitudinal direction is parallel to the sheet transport path, a support guide (20) for orderly feeding the sheets to the stocker, and a kicker (49) for feeding the sheets, along the feed roller (
13) of the processing rollers (14 to 18) that perform processing such as printing, ruled lines, side punching, etc., are arranged perpendicularly to the sheet transport path (10) and away from the processing surface of the sheet. A sheet processing device 4 is provided with a processing roller ( 14-18) Rotary drive device (23)
3. The sheet according to claim 2, further comprising a clutch (36) for disconnecting the processing roller, and a processing position adjusting device (24) for adjusting the processing phase of the processing roller when the processing roller is in a free rotation state. processing equipment