JPS62271744A - Auxiliary device for automatically mounting and dismounting machine plate on rotary press - Google Patents

Abstract

PURPOSE:To enable speedy execution of an operation of dismounting a used machine plate from a peripheral surface part of a plate cylinder and mounting a new machine plate onto the peripheral surface part, by reciprocating a hand between a magazine and the peripheral surface part of the plate cylinder. CONSTITUTION:A base body part 5 for supporting a hand 1 for holding a machine plate P is equipped with a magazine 6A comprising a new machine plate successive take-out part, in which a plurality of new machine plates are positioned in order in a passing-on manner, and a part for tentatively storing a plurality of used machine plates. When replacing the used machine plates with the new machine plates, the hand 1 is operated to bring the used machine plate P from a peripheral surface part of a plate cylinder A into the magazine of the base body part 5 for tentative storage and bring the new machine plate out of the magazine to the peripheral surface part of the plate cylinder A, and this operation is repeated to complete the replacement.

Description

Detailed Description of the Invention 3. Detailed Description of the Invention a) Industrial Field of Application This invention is a method for moving a plurality of printing plates (hereinafter referred to as printing plates) delivered to the sides of each printing unit onto a plate cylinder. Automatic plate loading/unloading assistance that streamlines the processing of new and old printing plates immediately before loading 'A' and immediately after removing debris in the automatic plate loading/unloading work in which the old printing plate is removed from the predetermined position and used. b) Conventional technology regarding the bag plate Regarding a device for automatically attaching and detaching a printing plate to a predetermined position on a plate cylinder, Japanese Patent Application Laid-open Nos. 1982-140254, 188657-1987, and 1988-60 by the present applicant are disclosed. 73850 and Japanese Patent Application No. 60-216329, and Japanese Patent Laid-Open No. 60-052343 filed by the present applicant regarding an apparatus for automatically distributing printing plates from a plate-making room to each printing unit.

In contrast to those prior art, the present invention provides a method for automatically distributing printing plates to the sides of each printing unit, and a device for automatically attaching and removing printing plates to a predetermined position of a plate cylinder. Corresponds to a delivery device.

However, there is still no prior art that corresponds to the present invention.

C) Problems to be Solved by the Invention As shown in Figures 1 and 6, the plate cylinder A is normally operated with a total of 8 printing plates P attached to its circumferential surface, 2 sheets per row and 4 rows. be done. Therefore, when exchanging old and new printing plates, the work of peeling off and collecting the eight old printing plates and carrying in and mounting the eight new printing plates is performed repeatedly, and the hand 1 for attaching and removing the printing plate is moved around the cylinder circumference of one plate each time. After peeling off the old printing plate from the surface and moving it to the carry-out position, the process of moving to the new printing plate loading position, holding the new printing plate, and carrying it to the plate cylinder peripheral surface must be repeated eight times. However, this requires too much time to attach and detach the printing plate, and the gloss rate is extremely poor.

An object of the present invention is to eliminate the above-mentioned disadvantages and to shorten the distances for carrying in new printing plates and carrying out old printing plates, which are borne by the printing plate loading/unloading hand.

It is an object of the present invention to propose a device that can quickly process the work of attaching and detaching new and old printing plates to the peripheral surface of a plate cylinder.

d) Means to solve the problem This invention aims to achieve the above objectives.

A magazine is added to the main body part that supports the hand for holding the printing plate, which has a new printing plate ML general ejection unit that positions multiple new printing plates in order, and a temporary storage unit for multiple old printing plates. do.

In addition to the above, the present invention further provides a new printing plate transfer terminal that unloads a desired new printing plate from a new printing plate conveyed by a carrier and makes a plurality of new printing plates lined up and waiting.

In addition to the above two items, the present invention further provides that the terminal is provided in such a manner that the height, front and back relationship, and direction match those of the magazine, and that the base portion is moved in the longitudinal direction of the plate cylinder. A moving means is provided for displacing the object along the

e) Function When exchanging old and new printing plates, the hand carries the old printing plate from the plate circumference to the magazine of the base body and temporarily stores it, and also takes out the new printing plate from the magazine and carries it to the plate cylinder circumference. If you ask questions, the exchange will be completed.

When a transfer terminal is provided, the movement of the hand includes, in addition to the movement at the time of changing the printing plate, as a preliminary movement before that.
An operation is added to sequentially transfer new printing plates from the terminal to the magazine.

When the mounting height of the terminal is set to match that of the magazine, the hand reciprocates between the magazine and the peripheral surface of the plate cylinder, while moving the base body to connect the magazine and the terminal. You can bring new editions directly into the magazine.

f) Example First, as shown in FIG. 3, the hand 1 is equipped with a plurality of suction cups 11, for example four, on its base plate 10, and when negative pressure is applied to these suction cups, the surface of the printing plate P is moved by them. can be held by suction, and when the negative pressure is released, the holding of the printing plate P is also released.

The other mechanisms on the board 10 of the hand l are outside the scope of the present invention, and therefore their description will be omitted.

The hand l is supported by a base part 5, which is installed, for example, on the floor 2 (see FIGS. 1 and 3) or suspended from a beam 3 on the ceiling (see FIG. 6).

The main body part 5 includes a lower arm link 53. Upper arm link 54, strut 5
5. The hand l is connected to the lower arm link 53 via the wrist axis W (see Figs. 1 and 6), the upper arm link is connected to the upper arm link 54 via the material axis X, and the upper arm link is connected to the upper arm link 54 via the material axis The links 54 are each supported by pillars 55 via shoulder axes Y (see Figure 6), and the pillars 55 (number 1vA in Figure 1) are supported by the base 5.
6 is rotatably supported.

The magazine 6 is attached to the base body part 5, and its attaching position t must be within the reach of the hand l and at a place that does not interfere with hand operation.Usually, the position shown in FIGS. As shown in Figure 6, the optimal position is a predetermined distance from the front of the base part 5 facing the plate #4A, and even in the case of the ceiling beam hanging type hand shown in Fig. It is added to the digit l at intervals of .

The magazine 6 consists of a new printing plate continuous take-out part 61 and an old printing plate temporary storage part 62, which are fixed to the base part 5 (
(Fig. 1) and a removable cassette type (Fig. 3).

As shown in FIG. 2, the new print continuous take-out section 61 of the fixed magazine 6 has a hanger 611.

The hanger 611 consists of a backing plate 612 provided at the tip of the hanger, a feeding claw 613 protruding from the rear end of the hanger, and an air cylinder 614 for driving the claw. , has an upper end edge or a horizontal bar extending at least in the horizontal direction, on which the mouth-side proximal bent portion pt of the new printing plate P is hooked, and is suspended and supported in a slightly forward-inclined posture. In the illustrated embodiment, the length of the hanger 611 is such that the first printing plate P1 and the second printing plate P2 are connected in series; however, the present invention is not limited thereto; This also includes those created to a length that is close to the length that can be aligned. At this time, the claw 613 for forwarding the printing plates is hooked on the trailing edge of the last printing plate. In this case, the amount of displacement of the pawl 613 increases, so in order to cope with this, for example, a chain conveyor with a single pawl (not shown) powered by a torque motor is used as a driving means instead of the air cylinder 614. It is possible that

In this way, the first printing plate P1 is always positioned in a predetermined direction and at a predetermined height of the base body 5, so that it can accurately respond to the remote take-out operation of the hand 1, and the first printing plate P1 by the hand L can be When the removal of the plate P1 is completed, the feeding mechanism a is activated, and the subsequent new printing plate is sequentially fed forward and positioned.

Continuing on, in FIG. 2, the old printing plate temporary storage section 62 is
It is a predetermined space regulated by at least an upwardly open box or a frame provided behind the new printing plate continuous take-out unit 61, and its bottom surface 621 is made of, for example, a board, mesh, or slats. A support shaft 622 is provided on the edge, and an arm protruding from the support shaft is connected to a rod of an air cylinder 623.
Extension of the rod opens the bottom surface 621, and contraction of the rod closes it.

Therefore, the plurality of old printing plates P removed from the plate cylinder A at the time of printing plate replacement are once carried into and retained in the storage section 62 by the hand l, and after the printing plate replacement is completed, the bottom surface 621 is opened. Then, a plurality of old printing plates are ejected outside at once and disposed of all at once in a predetermined location.

As shown in FIG. 3, a removable cassette-type magazine 6A is attached to the front surface of the base unit 5, and includes a cassette 6A1 for continuously taking out new printing plates, and an inclined hanger for positioning the latest printing plate to be taken out. 6All (however, in the illustrated embodiment,
Only this is a fixed type) and the temporary storage capacity of the old printing plate (Cebu) 6A
It consists of 2.

The cassette 6A1 for continuous take-out of new printing plates is placed on a shelf provided on the front surface of the base unit 5 using, for example, an electromagnetic magnet or a catch (not shown).

It is fixed and can be detached at will. On the other hand, the inclined hanger 6A11 for positioning the new printing plate.

The hanger is formed by a panel etc. tilted forward across a space in which it is difficult to take out at least the hand l from 6Al, and the near curved part PI on the mouth side of the new printing plate P is hooked on the upper edge of the hanger. It is suspended and supported.

As shown in FIG. 4, the cassette 6A1 for reading out the new printing plate M is, for example, a box provided with an opening for taking in at the top and an opening for taking out at the front. P
A plurality of sheets, for example, eight at most, are placed side by side in the order of removal from the front to the rear inside the box, in an upright position with their mouth side proximal curved portion P1 facing upward and forward.

The new printing plates P arranged in the order of cassette and tray At are rotated by, for example, driving a pair of spiral brushes 6A10 provided so as to be in contact with the tops of both sides by a drive means (not shown). , and sequentially forward, and by the action in step 7, the latest printing plate P is sent forward from the cassette 6A1 and falls onto the surface of the forward-inclined hanger 6A11. However, the new printing plate P in contact with the hanger surface is not necessarily placed at a predetermined position where it can be easily taken out by the hand 1, resulting in some errors.

Therefore, as shown in FIG. 5, means for positioning the new printing plate P to be taken out is provided, for example, as follows.

That is, a cone-shaped spiral brush 6A110 is attached to each horizontal shaft supported on both sides of the shoe 6A12 with a part of its circumferential surface exposed, and each horizontal shaft is rotated by a drive means (not shown). If you do so, the new edition P
is pulled together so that it enters the left and right guide rods 6A111, while a shelf 6A112 is protruded from the lower part of the surface of the chute 6A11, and when the shelf is lifted with an air cylinder 6A113, the new printing plate P is folded in the mouth. The curved portion p1 is hooked onto the upper edge of the hanger 6A11.

In this way, the take-out standby position of the new printing plate is determined both in the horizontal and vertical directions.

Furthermore, a rectangular tube-shaped chute 6A12 for taking in the old printing plate is provided on the back side of the hanger 6A11, and the hand 1 is installed from the circumferential surface of the 1st plate cylinder.
When the old printing plate removed from the chute is carried to the mouth of the chute and released from the hand 1, the released old printing plate passes through the shoe 6A12 and is transferred to the old printing plate temporary storage capacity provided below. ) Slide into 6A2. In this way, once the replacement of the old and new printing plates has been completed, the cassette 6A2 contains a plurality of used old printing plates, for example, a maximum of 8, so that the cassette 6A2 can be replaced at any time after the storage is completed. Pull it out from section 5 and discard the old printing plate inside.

Next, the means for carrying the new printing plate P into the magazine 6 or 6A attached to the base unit 5 will be described in detail below.

Each new printing plate P made by a plate-making machine (not shown) is attached in advance with an identification code indicating the previous printing process, and is sorted by reading the code, and each line is It is suspended and transported by a carrier 7 according to the destination,
delivered to the side of the desired printing unit.

A detection means 71 for unloading the printing plate is provided on either side of each printing unit, and each printing plate P transported by the carrier 7
The identification code is read there, and when the read codes match, the unloading mechanism 72 is activated and the printing plate P is removed from the hanger of the carrier 7.

In this way, the desired plurality of new printing plates P carried to the side of the printing unit can be transferred all at once into the fixed magazine 6 or the cassette type magazine 6A by the operator's hand, If this is done during the printing operation using the old printing plate, no one hour loss will occur.

However, when a large number of printing units are operated by a small number of workers, it is desirable to shorten the distance required for the above-mentioned transport work as much as possible, and furthermore, to fully automate the transport work if possible.

In order to achieve the above, first, the transfer terminal for the new printing version is installed at the same height as the installation height of the magazines 6 and 6A, and its installation position is at a close distance from the magazines; The transfer terminal is preferably approached from the magazine side as well, and ideally both are expected to be connectable.

In each of the embodiments shown in FIGS. 1 and 6, the base 56 of the mother body part is movable in the direction along the plate IJi4A, while the installation height, front and back relationship, direction, and posture of the transfer terminal 8 are changed. It is shown installed to match that of the forward tilting hanger 611 of the fixed magazine 6.

Since the printing plate transfer carrier 7 is normally of an elevated type, the sixth
As shown in the figure, the base 56 of the base 56 of the hand l is also suspended from the elevated beam 3 according to its height, and if designed so that it can be moved in the longitudinal direction of the plate 114A, transportation is possible. Communication route 9 between carrier 7 and transfer terminal 8
can be made as short as possible.

On the other hand, as shown in FIG.
6 installed under the floor 2 (see Figure 8)
When the communication route 9 between the transfer carrier 7 and the transfer terminal 8 is made movable, the communication route 9 between the transfer carrier 7 and the transfer terminal 8 is further extended from the embodiment shown in FIG. transformed. This L-shaped communication route 9 has the advantage of providing sufficient space as a standby stocker for the new printing plates P, and can hold up to eight new printing plates in order and on standby. 91 is a feed conveyor, 92 is a gate provided at the end of the stock section, and 93 is a printing plate sending claw.

As shown in FIGS. 8 and 9, an example of the underfloor traveling driving means 4 of the base unit 5 includes a pair of straight lines at the lower edges of a pair of plates 561 and 561 hanging down from both sides of the lower surface of the base 56. While the sliding legs 562 and 562 are provided, a pair of rails 211 and 211 are provided on the floor board 21 that is integrated with the floor 2, and the side is placed on and guided by them, and a DC servo is also provided that is integrated with the base 56. A motor 41 is provided, and a binion 43 is provided on its output shaft via a speed reducer 42, and the binion is engaged with a rack 22 fixed to the underfloor board 21. Therefore, since the pinion 43 rotated by the drive of the motor 41 is displaced along the rack 22, the base 56 that is integrated with the pinion is also displaced, and the base body 5 is moved in the longitudinal direction of the plate cylinder A. In Fig. 1,
By displacing the base body part 5 to the right, the hanger 611 of the magazine 6 is connected to the transfer terminal 8, and the transfer of the printing plate P to the hanger becomes fully automatic. 44 is an overrun prevention sensor, and 45 is a fixed position stop sensor.

However, even if the installation height of the transfer terminal 8 does not match that of the magazine 6 or 6A, as long as the position of the transfer terminal 8 is determined, operate the hand l to remove the transfer terminal 8 from the magazine 6 or 6A. Take out the new edition P one by one,
The work of transporting them into the magazine 6 or 6A can be carried out all at once.

On the other hand, in an embodiment suitable for stocking a large number of new printing plates P in a small space, as shown in FIG. After lowering the sheets at a speed of .72, the sheets are sequentially arranged one by one in an upright state within a large number of comb-shaped gates 84 provided on the table 81 of the transfer terminal 8. In that case, since the lowering position of the new printing plate P is constant, if the table 81 is slightly displaced in the longitudinal direction by the motor 83 and the Fil-shaped gate 84 is moved in accordance with the lowering position a, a large number of The new printing plates P are sequentially inserted one by one into each Ms@ type gate and temporarily docked in a well-aligned state. Each new printing plate P thus scanned is pushed out from inside the gate to the other side by pushing the button 82 provided on one side of the gate 84 into the gate. If the vertical height, front-back relationship, orientation, and posture of the extruded new printing plate P match those of the forward tilting hanger 611 of the fixed magazine 6, the new printing plate can be transferred to the fixed magazine 6. becomes flexible. In order to align the inclined hanger 611 (see FIG. 1) of the fixed magazine 6 with the direction of the new printing plate P pushed out according to the embodiment shown in FIG. 7, for example,
The main body part 5 of the hanger may be rotated about 90 degrees about the support 55.

The gate 84 is made wide and a plurality of new printing plates P are inserted and stocked at once between the gates 84 and 81.
Also, if a wide die corresponding to the above is used, a plurality of new printing plates can be pushed out of the gate by pressing -. Therefore, the new printing plate continuous ejection cassette 6A is located at the extrusion position outside the gate.
l, However, in this case, it is a type of opening in any direction (not shown)
By placing the spiral brush 6Aio (see Fig. 4) on the side opening type cassette, the mounting position of the spiral brush 6Aio (see Fig. 4) can be transferred to the desired plurality of new printing plates at once into the cassette. modified to contact the upper edge of the

As another example not shown, 6 on the table 81
If tooth-shaped gates 84 are made in a wide shape and an upward opening type force cera 6A1 shown in FIG. 4 is placed in each gate, a plurality of new printing plates can be directly loaded into the cassette. Then, the cassette is placed on the table 8 using the button 82.
When pushing out to the side of the pusher 8, the pusher 8 can be moved if the main body 5 is moved in advance so that there is a kayak shelf on the main body 5 shown in FIG. 3 at the extrusion position.
2, the cassette 6A1 can be transferred onto the mother body part 5.

g) Effects of the Invention As detailed above, in the present invention, the magazine 6 or 6A is added to the hand of the base unit 5, and the handling of taking out the new printing plate P and temporarily storing the old printing plate with the hand l is eliminated. Since the above-mentioned magazine 6 or 6A is sufficient, hand 1
Since it is now possible to complete the exchange of printing plates P within close range of the circumferential surface of the plate cylinder A, processing can be done much more quickly than in the past.

Furthermore, in the present invention, the terminal 8 is provided at a predetermined position so that one or more new printing plates P can be stably supplied one after another. Since it is now possible to carry the plate P into the magazine 6 or 6A in advance, the operations described in the previous section can be performed immediately when exchanging the old and new printing plates.

Furthermore, the present invention+ makes it possible to connect the terminal 8 and the magazine 6 or 6A, so that the transfer of the new printing plate P to the magazine can be accomplished fully automatically and quickly. .

Since the present invention achieves the various effects shown below, it has succeeded in streamlining the processing of old and new printing plates immediately before and after the preliminary work of the printing plate P.

[Brief explanation of the drawing]

Fig. 1 is an overall perspective view showing the first embodiment of the present invention; Fig. 2 is an enlarged perspective view showing only the main parts of Fig. i91;
The figure is a perspective view showing a second embodiment of the invention, and FIG. 4 is an enlarged perspective view showing only the main parts of FIG. 5 is a perspective view of only other important parts of FIG. 3 seen from the rear; FIG. 6 is an overall perspective view illustrating a modification of the first embodiment (FIG. 1); and FIG. FIG. 8 is an enlarged plan view showing only the floor surface of FIG. 1; FIG. 9 is an enlarged plan view showing only the floor surface of FIG. 8; It is a vertical left side view taken along a line. A: Plate cylinder, P: Printing plate. pi --- the proximal bend of the mouth, 1... the hand, 10... the substrate, 11...
... Suction cup, 2 ... Floor, 21 ... Floor board,
211--Rail, 22--Rack, 3--Beam, 4--Underfloor traveling drive means, 41
...DC servo motor, 42...reduction gear, 43...binion, 44
...Sensor for overrun prevention, 45...Sensor for fixed position stop. 5...Mother body part, 51...Wrist part, W...
・Wrist axis, 53...Lower arm link, X...Material axis, 54...Upper arm link, Y...Circumferential axis,
55... Support, 56... Base, 561... Plate, 562... Leg, 6...
...Magazines, especially fixed magazines, 61...
・・New printing plate continuous take-out unit, 611・・Hanger, 612・・Passing plate,
613...Feed claw, 614...Air cylinder. 62...Old printing plate temporary storage section, 621...Bottom, 622...Spindle, 623
····Air cylinder. 6A...Cassette type magazine, 6Al...Cassette for continuous removal of new editions, 6A10
...Spiral brush for progressive feeding. 6A11... Hanger for positioning new printing plate removal, 6A
110... Cone-shaped spiral bran, 6A111...
...Guide rod, 6A112...Shelf, 6A113...Air cylinder, 6A12...Chute for taking in old printing plate, 6A2...
・・Temporary storage cassette for old printing editions. 7...Printing plate conveyance carrier. 71...Detection means, 72...Unloading mechanism. 8...Transfer terminal, 81...Table, 82...Butsusha. 83...Motor, 84...iIMI type gate, 9...Connection route, 91...Feeding conveyor, 92...Gate, 93...Feeding claw.

Claims (11)

[Claims] (1) A hand for holding a printing plate that is supported and moved by a shaft and an arm of the base body, and a hand that is attached to the base body and that sequentially positions a plurality of new plates for continuous take-out of new printing plates. and a magazine having a temporary housing section for a plurality of old printing plates, and the hand is reciprocated between the magazine and the peripheral surface of the plate cylinder. Attachment/detaching aid. (2) The new printing plate continuous take-out part of the magazine has a horizontally long hanger that hooks and hangs the bent parts of the grip side of multiple new printing plates in series, and a positioning plate provided at the tip of the hanger. and a protrusion for progressively advancing the printing plates that protrudes from the rear end of the hanger and is driven forward, and a space for temporarily accommodating old printing plates is provided on the back of the hanger.
Apparatus described in section. (3) A removable new printing plate storage cassette in which a plurality of new printing plates are stored in an upright position with each of the bent portions on the mouth side facing upward and forward, and is provided with means for sequentially feeding them forward. Claim 1, wherein a magazine is constituted by a hanger provided in front of the cassette, and a removable temporary storage cassette for old printing plates provided at the bottom of the back of the hanger.
Apparatus described in section. (4) A hand for holding a printing plate that is supported and moved by the shaft and arm of the base body, and a hand that is attached to the base body and that sequentially positions a plurality of new plates for continuous take-out of new printing plates. A desired new printing plate is unloaded from a carrier that conveys the new printing plate toward each printing unit, and the plurality of new printing plates are lined up and waiting. A printing plate automatic loading/unloading terminal for a rotary press, comprising: a transfer terminal for a new printing plate; and the hand is reciprocated between the terminal and the magazine, and between the magazine and the plate cylinder peripheral surface. Auxiliary equipment. (5) The apparatus according to claim 4, wherein the new printing plates are transferred one by one in series at the terminal. (6) A hand for holding a printing plate that is supported and moved by the shaft and arm of the base body, and a hand that is attached to the base body and that sequentially positions a plurality of new plates for continuous take-out of new printing plates. A desired new printing plate is unloaded from a carrier that conveys the new printing plate toward each printing unit, and the plurality of new printing plates are lined up and waiting. , and a transfer terminal for a new printing plate provided at a position that can match the installation height, front-to-back relationship, and orientation of the magazine; and a moving means for displacing the base body part along the longitudinal direction of the plate cylinder. An automatic printing plate attachment/detachment auxiliary device for a rotary press, characterized in that the hand is reciprocated between the magazine and the peripheral surface of the plate cylinder, and the magazine and a transfer terminal are connected. (7) The apparatus according to claim 6, wherein the new printing plates are sequentially transferred one by one in series at the terminal. (8) Claim 6, characterized in that a plurality of new printing plates are piled up and transported all at once at the terminal.
Apparatus described in section. (9) The apparatus according to claim 8, wherein the new printing plate is transferred to a cassette at the terminal. (10) The device according to claim 6, wherein the means for moving the base body is provided below the base body. (11) The device according to claim 6, wherein the means for moving the base body is provided above the base body.