JP2525940Y2 - Plate loading and transferring device - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION In the present invention, a printing plate made of a thin flexible sheet is detachably mounted on a rotary press for newsprint printing, and is loaded on a gripper attached to a plate transport chain conveyor at appropriate intervals. Device for transferring to a position.

[0002]

2. Description of the Related Art As shown in FIGS. 4 and 5, a conventional plate loading and transferring apparatus for transferring a printing plate to a position where the plate is loaded on a plate transporting conveyor is a pair of parallel and endlessly driven endlessly driven. A large number of support rods A1 and A2 that engage with and support the bent ends of the printing plate are provided at equal intervals on each of the conveyor chains C1 and C2. The supporting rods A1 and A2 are provided at the bent end P '.
The plate P suspended by the support rods A1 and A2 is moved upward by the pair of conveyor chains C1 and C2 in the descending path near the plate transport chain conveyor L. The lower end of the printing plate P is the loading table S
, The support chains A1 and A2 are disengaged from the support rods A1 and A2, and the conveyor chains C1 and C2 descend the descending path as they are.

The bent end of the upper end of the printing plate P, whose lower end is supported by the above-mentioned loading tray S, is closed by an open / close gripper attached to the plate conveying chain conveyor L at equal intervals as shown in FIG. The movable guide plate G which tilts from the chain line position to the solid line position shown in FIG. 4 enters the movement path of the open / close gripper, is gripped and loaded on the gripper, and is conveyed to a desired location.

[0004]

In the above-mentioned prior art, when the lower end of the printing plate P is supported by the loading table S, the supporting rods A1 and A1 which are engaged with the plate bending end P 'are provided. A2
Is detached below the bent end P ′, but as is understood from FIG. 5, it is sandwiched between the printing plate P and the loading tray S and is prevented from descending by the loading tray S. Therefore, the conveyor chains C1 and C2 on the descending path are expanded and separated outward and separated so that the support rods A1 and A2 descend downward on both sides of the loading table S.

Recently, however, printing of two-page plates and four-page plates has been carried out with the printing of newspapers in color, and the printing plate has not been transported by a conventional single-size transport means. It has become necessary to transport a printing plate for a two-page plate having a small printing plate and a printing plate for a four-page plate having a large width to a predetermined place by one plate transport chain conveyor L.

[0006] In response to such demands of the newspaper printing industry, when using the plate loading means according to the prior art described above,
The lengths of the supporting rods A1 and A2 are engaged with and supported by the bent ends P 'of the two-page printing plate having a small width, and the bent ends P of the four-page printing plate having a large width are supported. Therefore, it is necessary to support the support rod A1 by supporting it, so that the length of the support rods A1 and A2 must be increased to correspond to the magnitude of the width.

However, if the lengths of the support rods A1 and A2 are increased, the ends of the support rods A1 and A2 can pass down the outer sides on both sides of the loading tray S on the descending side of the conveyor chains C1 and C2. In this case, the width of the conveyor chains C1 and C2 must be further increased and departed from the outside, and the forced upward bending of the conveyor chain hinders the smooth operation of the chain and the chain. In addition, although the conveyor chains C1 and C2 are operated in synchronization with each other, if there is a difference in the elongation of each chain, the position of the symmetrical position with the supporting rods A1 and A2 may be reduced. Is fluctuated and the printing plate P is conveyed in an inclined manner. As a result, when the width is small as in the case of a two-page plate, the printing plate slides toward one of the support rods and moves with the other support rod. Engaging input is disengaged, there is a possibility that the plate falls detached in transit.

In addition, since the length of the support rods is increased, the amount of outward expansion of the conveyor chains C1 and C2 is increased, and the space occupied by the apparatus is increased.

[0009]

In order to solve the above-mentioned drawbacks of the prior art, the present invention raises and lowers a pair of support rods which are engaged with the plate bending edge to suspend the plate. The plate is placed on the elevating table, the plate is raised to the loading height on the plate transport chain conveyor L, and a pair of the plate is transferred to the plate transport chain conveyor L. A plate support rod is rotatably arranged, and the plate on the lifting table is received by rotating the pair of support rods from a downwardly suspended position to a horizontal position. When the plate is advanced to the conveyor L side, the plate is unloaded on the load receiving table, and both the plate for the two-page plate and the plate for the four-page plate can be loaded on the plate transport chain conveyor L. is there.

[0010]

With the bent end protruding from the table, the plate placed on the elevating table is raised together with the elevating table, and the elevating table is set at a position slightly above the pivotal position of the pair of supporting rods in the hanging posture. When the lifting table is lowered after rotating the pair of supporting rods to a horizontal position, the pair of supporting rods engages with the bent end of the printing plate protruding from the table, By continuing to lower the table, the printing plate is supported in a suspended state by a pair of support rods, and detaches from the table.

Then, the pair of support rods are moved closer to the plate transport chain conveyor, and the pair of support rods are turned to a hanging posture on the loading table located on the transport path of the plate transport chain conveyor. And the pair of support rods are disengaged from the engagement of the plate bending end, the plate lower end is supported on the loading table, and the tilt guide plate is attached to the plate transport chain conveyor at equal intervals. The upper end of the printing plate is gripped by the gripping tool and conveyed to a predetermined location by tilting the gripping tool in the movement path of the gripping tool by approaching the empty gripping tool.

The gripper is closed by releasing the cam roller fixed at the loading position and grips the central portion of the plate bending end.

[0013]

1 to 3 are a front view, a side view and a plan view, respectively, of a plate loading and transferring apparatus according to the present invention, wherein a rectangular upright frame F is erected on the frame F below. An elevating table 2 driven up and down along the elevating guide column 1 is provided, and a forward / reverse rotatable conveyor belt 2A for pulling in or sending out a printing plate is attached to a plate mounting surface of the elevating table 2. .

A cylinder device 3 having a piston rod extending and contracting laterally is pivotally supported on the upper part of the upright frame F so as to be tiltable about a horizontal axis.
The upper end of the parallelogram link whose lower end is pivotally supported by the frame F is pivotally supported, and the pair of support rods 4A and 4B engaged with the bent end of the printing plate are set in a suspended posture and a horizontal posture. A loading drive rod 5 having blocks 5A and 5B pivotally supported at both ends is provided.

A plate transport chain conveyor L is running on the side where the tip of the piston rod is directed.

In the plate loading and transferring apparatus shown in FIG. 2, the plate transport chain conveyor L is provided as a pair on both sides of the frame F, so that the cylinder device 3, the support frames 4A and 4B and the loading drive frame 5 are respectively provided. Although provided as a pair, it is not always necessary to provide a pair, and when the plate transport chain conveyor is only one side, only one side is sufficient.

As shown in FIG. 3, the lifting table 2 has a size such that the bent ends of the printing plate protrude and are mounted, so that the bent ends of the flexible and thin plate are turned downward. The support projection 2B is formed so as not to hang down.

Further, both sides of the support projection 2B are secured as spaces in which the support rods 4A and 4B can rotate between a hanging posture and a horizontal posture.

Therefore, when the lifting table 2 is raised with the supporting frames 4A and 4B in the hanging posture, the central portion of the plate at the bent end is supported by the supporting protrusion 2B, and the lifting table 2 is supported.
The printing plate placed above can be stopped above the support rods without interfering with the support rods 4A and 4B.

It is a matter of course that the width between the pair of blocks 5A and 5B in which the support rod is rotatable is larger than the width of the lifting table 2 and the printing plate for four-page printing.

When the lifting table 2 on which the printing plate is mounted is stopped at a position higher than the supporting rods 4A and 4B, the bearings 4A and 4B in the hanging position are rotated upward to the horizontal position, and the lifting table 2 is rotated. As shown in FIG. 3, the support rods 4A and 4B in the horizontal position are located in the spaces on both sides of the support protrusion 2B of the lift table 2, so that the lift table 2 interferes with the support frames 4A and 4B. The printing plate continues to descend without passing through, but the bent ends of the printing plate protrude and are placed in the spaces on both sides of the support protrusion 2B.
B penetrates the bent end to suspend the printing plate.

Therefore, the cylinder device 3 is operated to extend the piston rod, and the loading drive frame 5 is moved to the chain conveyor L.
1, the upper end of the parallelogram link moves closer to the plate transport chain conveyor L as shown in FIG. 1, and the support rods 4A and 4B rotate from the horizontal posture to the hanging posture at the chain line position. The printing plate suspended from the support rods 4A and 4B is disengaged from the support rods and released.

However, below the plate transport chain conveyor L, a loading table 6 for supporting the released lower edge of the plate.
A plate guide 6A for the plate P is attached to the cradle 6, and the guide plate 6A has an upper part on the upper side of the guide path outside and inside the moving path of the plate gripper of the plate transport chain conveyor L. When the operating plate 7 is in the chain line position, the bending end of the printing plate supported by the loading table 6 and the falling guide plate 6A in the down state is attached. When the operating plate 7 is at the position indicated by the solid line, it is outside the path of the plate gripper of the conveyor L, and is in the path of the plate gripper. It is transported to the place.

[0024]

[Effects of the Invention] In the present invention, a printing plate is placed on an elevating table, and is transported upward to a loading position of a plate transport chain conveyor. Since the plate is not conveyed, it can be conveyed without discrimination depending on the width of the plate, whether for two-page printing or four-page printing, and in the plate loading means on the plate transport chain conveyor. However, since the support rods only reciprocate substantially horizontally in a short distance between the lifting table at the ascending position and the plate transport chain conveyor, the length of the support rods for two-page printing and four-page printing, respectively. Even if the length of the plate can be shared, there is no possibility that the space occupied by the plate loading device is increased.

[Brief description of the drawings]

FIG. 1 is an explanatory front view of an embodiment of the present invention.

FIG. 2 is an explanatory side view of FIG. 1;

FIG. 3 is an explanatory plan view of FIG. 2;

FIG. 4 is an explanatory front view of a conventional plate loading device.

FIG. 5 is an explanatory side view of FIG. 4;

[Explanation of symbols]

 2 Lifting table 3 Cylinder device 4A, 4B Supporting rod 6 Loading table P Plate P 'Plate bending end L Plate transport chain conveyor

Claims (1)

(57) [Scope of request for utility model registration] 1. A slightly lower position than a rising end position of an elevating table on which a bent end portion of a printing plate is protruded and placed, a supporting rod engaged with the bent end portion of the printing plate is horizontally moved from a hanging posture. A printing plate loading and transferring apparatus, comprising a loading member pivotally supported to a supporting position, and a driving means for moving the loading member toward and away from the plate transport conveyor.