JPS61158449A - Automatic separate print cylinders engagement/ disengagement device - Google Patents

Abstract

PURPOSE:To achieve automatic engagement and disengagement of separate print cylinders with ease by bringing forward to the printing position each of separate cylinders arranged parallely on guide rails, with arms operating serially, followed by taking back each cylinder to the post-printing return position wherefrom said each cylinder then rolls down onto return rails. CONSTITUTION:In the embodiment of the present invention, each cylinder gripper 22 receives at each bearing case rest 22a thereof a bearing case 19, on each side, which is located at the cylinder shaft end of every separate print cylinder 11 already rolled down to the print cylinder feed position from guide rails 13, then a bearing case lid closer 22b pushes forth a lid 22c to close the bearing case rest 22a, subsequently an arm drive cylinder works driving each arm 23 to bring forward each of the separate print cylinders 11 to a printing position b, successively the print cylinder 11 is sent into pressure-engagement with an impression cylinder 10 and also contact with an inking roll 9 while, at the same time, a drive gear goes into engagement with another drive gear on the side of the impression cylinder, whereby said print cylinder runs synchronously with the impression cylinder 10, thereby by paper from an web goes through sequential separate cycle printing, and when the printing is completed, said each arm 23 is driven to the opposing direction of above by a drive mechanism 25, whereby said print cylinder 11 is taken back to a postprinting return position c, the lid 22c is opened, and said print cylinder then rolls down onto return rails.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention is capable of printing, for example, a daily schedule calendar or the like on a strip-shaped base paper, and also printing different reprints such as store names, personal names, commercials, etc. on the strip-shaped base paper using a separate printing cylinder. The present invention relates to an automatic attachment/detachment device for a separate printing cylinder suitable for printing.

Conventional technology Daily calendars are printed continuously by passing a strip of base paper between a plate belt and an impression cylinder, which are lined up with at least 365 plates. You may have to select a separate printing cylinder for the base paper and print a small amount of information such as store names, personal names, commercials, etc.

Conventionally, as shown in FIG. 4, for offprint printing on the main strip base paper 1 as described above, the bearing 3o of the offshoot printing cylinder 11, which has the plate 17 facing the impression cylinder lO, is divided to separate the sentence plate cylinder 11. The structure is such that it can be attached and detached, and when the need for reprinting arises, the machine has to be stopped and multiple workers have to replace it mainly by hand, which imposes a heavy workload. Furthermore, there were economic losses such as printing losses that could not be ignored.

Problems to be Solved by the Invention Therefore, this invention performs predetermined main printing on a strip of base paper, like the separate printing in Nippon Printing, and also relies on human power to install the separate printing cylinder for a single-print printing machine. To provide an automatic attachment/detachment device for a separate printing cylinder, which can be easily attached in an extremely short time without having to do so, and can quickly respond to small-volume printing, etc.

Means for Solving the Problems In order to solve the above problems, the present invention performs predetermined main printing on a strip-shaped base paper, selectively replaces the separate printing cylinder, and performs separate printing superimposed on the main printing. A separate column printing machine for performing separate printing is provided with an introduction rail that supports the separate printing cylinders horizontally and in a standby state, and an ejection rail for the separate printing cylinders after printing, and the feeding of the separate printing cylinders from the introduction rail. a supply position for receiving the separate printing cylinder, a printing position for holding the supplied separate printing cylinder in a printable state relative to the impression cylinder, and a discharge position for transferring the separate printing cylinder to the ejection rail after printing the separate printing. To provide an automatic sentence printing cylinder attachment/detachment device that is configured to include a separate printing cylinder supply transfer arm that moves to a different position, thereby facilitating the automatic installation of a separate printing cylinder.

In other words, in this invention, the plurality of separate printing cylinders that are placed in parallel on the introduction rail and are on standby are sequentially supplied to the printing position by the cooperation between the introduction rail and the arm, and the sentence printing state is quickly formed. The printing cylinder is immediately brought to the ejection position, transferred to the ejection rail, and ejected, and printing cylinder replacement for separate printing is performed automatically and in a short time. Therefore, it is suitable for cases where a small amount of separate printing of a wide variety of types is performed in addition to main printing such as daily calendars.

EXAMPLES The present invention will now be explained based on the illustrated examples. FIG. 1 shows the printing process of a daily calendar showing an example of the present invention, where l is a strip of base paper.

The strip-shaped base paper 1 wound around the strip-shaped base paper roll 2 is guided by a plurality of guide rolls 3 and sent to the prison sentence printing section 4, where store names, advertisements, etc. are printed as necessary, and then the final printing is carried out. 0 prints sent to the printing section 5 The printing section 5 has an impression cylinder 6 and the impression cylinder 6
/Hook-up rolls arranged so as to be relatively rotatable on both sides of7.
7, and an annual daily table endless plate 8 (one is a plate belt for holidays) suspended on the roll 7.7, and the strip-shaped base paper l is passed between the impression cylinder 6 and the endless plate 8. The strip-shaped base paper 1, which has been subjected to 0-water system printing on which the main yearly daily schedule is printed, is cut into daily schedules and used as daily schedule calendars.

As shown in FIGS. 2 and 3, the sentence printing unit 4 is composed of an ink roll 9, an impression cylinder 10, and a plurality of separate printing cylinders 11, and the plurality of separate printing cylinders 11 are sequentially attached and detached by an automatic attachment/detachment mechanism. 1
2, the ink-applied sheet is configured to be in contact with the roll 9 and press-bonded to the impression cylinder 10, so that separate printing is performed on the strip-shaped base paper 1.

For this reason, the attachment/detachment mechanism 12 of the separate printing cylinder 11 is
The impression cylinders 10 and 10 are arranged in parallel so as to support both ends of the shafts of
An introduction rail 13 is arranged with a slight incline toward the side, and an introduction rail 13 is arranged in parallel so as to support both ends of the shaft of the separate printing cylinder 11 like the introduction rail 13, and is arranged with a slight inclination toward the side opposite to the impression cylinder 10. A discharge rail 14 is provided.

Further, in this embodiment, stoppers 15 are installed at appropriate intervals along the introduction rail 13 to prevent the sliding of the separate printing cylinder 11 operated by an air cylinder or the like and to hold it in a standby state. A rail 16 is provided along the introduction rail 13 and for positioning the separate printing cylinder 11 on the rail 13.

On the other hand, as shown in FIG. 2C, the separate printing cylinder 11 is provided with a prison term plate 17 containing store names, advertisements, etc. on its surface, and has cylindrical bearing cases 19, 19 on its shaft portions 18, 18.
is provided, and a drive gear 20 is further provided at one shaft end. In this embodiment, a flat notch 11a is provided at an appropriate location on the periphery of the end of the separate printing cylinder 11 for positioning.
is the provision.

A plurality of reprint printing cylinders 11 having different prison term plates 17 are supported horizontally in parallel so that their flat notches 11a abut against the lower surface of the positioning rail 16, and are sequentially arranged on the introduction rail 13.

Although the introduction rail 13 is inclined toward the impression cylinder 10 side, each separate column printing 131411 comes into contact with the shaft portion of the stopper 15, and is prevented from advancing and is in a standby state. In order to send out the separate printing cylinders 11, the stoppers 15 are released from the respective separate printing cylinders 11 using an air cylinder or the like. As a result, each separate column print [111] moves forward according to the inclination of the introduction rail 13.

In this case, each separate printing cylinder 11 slides without rolling because the flat notch 11a formed on the periphery of the roll is locked on the lower surface of the positioning rail 16, and the first separate printing cylinder 11 slides without rolling. 11 reaches the discharge end 13a of the introduction rail 13, it is released from the locking of the positioning rail 16 and moves to the supply position a according to the inclination of the tapered surface formed on the discharge end 13a.
be sent to.

On the other hand, the attachment/detachment mechanism 12 for the separate printing cylinder is provided with a transfer means 21 for the separate printing cylinder 11 between the introduction rail 13 and the discharge rail 14 . This transfer means 21 consists of a separate printing cylinder supply transfer arm 23 which has a printing cylinder gripping part 22 at its tip that grips the bearing cases 19, 19 provided at the ends between the shafts of the separate printing cylinder 11, and the base of the arm 23. Shaft the end 24
A drive mechanism 25 such as an air cylinder is rotatably supported at
It is configured so that it can be rotated to each position described later.

In this embodiment, the grip part 22 provided at the tip of the arm 23 has a semicircular arc-shaped housing part 22a.
M22c, which is opened and closed by an actuating mechanism 22b such as an air cylinder, is pivotally attached to the open end of.

The conveying means 21 for the separate printing cylinder 11 is constructed as described above. First, the gripping portion 22 rotates the arm 23 to position the separate printing cylinder at the supply position a, and the cylinder is fed from the introduction rail 13 as described above. The bearing cases 19, 19 at the shaft end of the separate printing cylinder 11 that has reached position a are moved to the housing portion 22a.
, 22a, and the actuating mechanism 22b causes the accommodation portion 22
A is closed with a lid 22c, and then the arm 23 is driven by the drive mechanism 25, and the separate printing cylinder 11 is delivered to the printing position, so that a printable state is established.

That is, the separate printing cylinder 11 is in contact with the impression cylinder 10 at the printing position.
At the same time as the inked roller 9 is pressed and contacted with the roll 9, the drive gear 20 meshes with the drive gear on the impression cylinder 10 side, so that the separate printing cylinder 11 and the impression cylinder 1]qlO are rotated synchronously. Then, on the strip-shaped base paper 1 which is rotated around the impression cylinder 10, a separate column is printed using a prison term plate 17.

When the separate column printing by the separate printing cylinder 11 is completed, the driving mechanism 25 drives the separate printing cylinder supplying arm 23 in the opposite direction to the above, and the separate printing cylinder 11 held by the gripping part 22 is moved to the discharge position C. 122c is opened by the operating mechanism 22b, and the separate printing cylinder 11 is transferred onto the carry-in end 14a of the discharge rail 14. The separate printing cylinder 11 brought to the carry-in end L4a of the discharge rail 14 is transferred on the discharge rail 14 according to its inclination and is discharged.

As described above, the next time you print another column, the introduction rail 1
The separate printing cylinder 11 of a different type from the above-mentioned separate printing cylinders arranged at the head of the above printing cylinder 3 is taken out again by the arm 23, another column printing is performed on the strip-shaped base paper 1 in the same manner as described above, and after printing, the separate printing cylinder 11 is placed on the rail 1.
Discharge to 4.

In this way, separate column printing is performed by the separate printing cylinders 11 sequentially arranged on the introduction rail 13.

FIG. 3 shows another embodiment of the attachment/detachment mechanism 12 for the separate printing cylinder 11. In this embodiment, an endless drive belt 27 with pushers 26 arranged at appropriate intervals along the introduction rail 13 is provided. The belt 27 is driven to push the printing cylinders 11 arranged on the rails 13 with the pushers 26 to advance them.

Further, in this embodiment, an arm 28 for discharging the sentence printing cylinder operated by a hydraulic mechanism or the like is located at the discharging position C and near the carry-in end 14a of the discharging rail 14, and a printing cylinder 11 discharged onto the rail 1 is located.
A transfer prevention arm 29 is provided to stop the transfer of the print cylinder 11, and when the arm 23 grips the print cylinder 11 and brings it to the discharge position C, the discharge arm 28 is actuated to remove the print cylinder 11 stored in the gripping section 22. The printing cylinder 11 is reliably transferred onto the carry-in end 14a of the discharge rail 14, and the separate printing cylinder 11 is securely stopped by the arm 29 at the carry-in end 14a, and the arm 29 is then laid down using an air cylinder or the like. The separate printing cylinder 11 is made to roll smoothly on the discharge rail 14.

In addition to the effects of the invention, according to the present invention, the separate printing cylinder can be easily replaced with the main printing machine in an extremely short period of time without relying on human power, and it is possible to quickly respond to the printing of prison sentences.

That is, according to the present invention, it is possible to perform continuous and large-volume main printing such as 8-page printing, and to efficiently print small quantities and various types of sentences such as one store name, personal name, advertisement, etc. without almost stopping the operation. It is suitable for use as an automatic attachment and replacement mechanism for separate printing cylinders. Therefore, work loss, labor burden, deterioration of printing efficiency, etc. when printing separate columns are eliminated, making it extremely economical.

[Brief explanation of drawings]

Fig. 1 is a schematic side view of the printing process of an 8-table calendar to which the present invention is applied, Fig. 2A is a perspective view of the attaching/detaching mechanism of the separate printing cylinder showing an embodiment of the present invention, and Fig. 2B is the same as above. 2C is a perspective view of the separate printing cylinder arranged on the introduction rail, FIG. 3 is a side view of the attachment/detachment mechanism of the separate printing cylinder showing another embodiment of the present invention, and FIG. 4 is a conventional one. FIG. 3 is an enlarged perspective view illustrating a mechanism for attaching and detaching the separate printing cylinder. DESCRIPTION OF SYMBOLS 10... impression cylinder, 11... separate printing cylinder, 13... introduction rail, 14... discharge rail, 22... gripping part of separate printing cylinder, 23... feeding and transfer of separate printing cylinder arm,
a... Separate printing cylinder supply position, b... Printing position of the separate printing cylinder, C... Separate printing cylinder discharge position.

Claims (1)

[Claims] In a separate printing press that prints a predetermined main print on a strip of base paper and also attaches separate printing cylinders to perform separate printing different from the main printing, the introduction of supporting the separate printing cylinders side by side in a standby state. A separate printing cylinder supply position which is provided with a rail and a discharge rail for the separate printing cylinder after printing, and which receives the separate printing cylinder carried out from the delivery end of the introduction rail, and a separate printing cylinder which receives the supplied separate printing cylinder. A printing position for holding the printing cylinder in a printable state relative to the impression cylinder, and a printing cylinder supply transfer arm for moving the printing cylinder to each position of the discharge position for transferring the printing cylinder to the input end of the discharge rail after printing the printing cylinder. An automatic attachment/detachment device for separate printing cylinders.