JP7338855B2 - Plate sorting device - Google Patents

Description

The present invention relates to a printing plate sorting device for sorting printing plates used in a rotary press.

A rotary press for offset printing newspapers and magazines uses a plurality of printing plates. Plates for offset printing are produced by a plate making machine, sorted by a plate sorting device, and then used by a rotary press.

As a technique related to such a printing plate sorting device, in Patent Document 1, printing plates are transported by a transporting means of a printing plate sorting machine main body, and on both sides intersecting the transport direction by one side sorting means or the other side sorting means A technique for distributing printing plates and storing the printing plates in respective stockers on both sides is disclosed. According to the technique disclosed in Patent Document 1, one printing plate sorting machine can sort plates into two locations on both sides, and it is said that the installation space can be reduced even when the number of sorting is large.

However, in the technique of Patent Document 1, when the number of sorted plates is more than 2, a plurality of plate sorters must be arranged continuously with the direction in which the plates are conveyed by the conveying means aligned. The printing plate sorting machine of Patent Document 1 has, in addition to a transporting means for transporting the printing plates, two sorting means (one side Distributing means and other side distributing means), if a plurality of such printing plate sorting machines are provided, the structure of the entire printing plate sorting apparatus becomes large-scaled.

Japanese Patent Application Laid-Open No. 2001-150625

SUMMARY OF THE INVENTION An object of the present invention is to provide a printing plate sorting apparatus that can sort a large number of printing plates with a simple configuration.

According to one aspect of the present invention, the following 1 to 2 printing plate sorting apparatuses are provided.
1.
a cradle for receiving a plate and transferring it to a stocker, a movement mechanism for horizontally moving the cradle, and a rotation mechanism for rotating the cradle around a vertical axis ,
The cradle includes a reversing mechanism for reversing the cradle in one direction to transfer the printing plate to a stocker, and the rotating mechanism rotates the cradle having the reversing mechanism. Sorting device.
2.
2. The printing plate sorting apparatus according to 1 above, wherein the movement of the cradle by the moving mechanism and the rotation of the cradle by the rotation mechanism can be performed in parallel.

Since the printing plate sorting apparatus of the present invention is provided with a moving mechanism for horizontally moving the cradle and a rotating mechanism for rotating the cradle about a vertical axis, a single cradle can be used to print onto stockers at a plurality of locations. The plate can be transferred, and the degree of freedom in the direction in which the printing plate is carried into the cradle and the placement of the stocker with respect to the cradle is increased. Therefore, according to the present invention, it is possible to increase the number of sorted printing plates with a simple configuration.

1 is a plan view conceptually showing a usage state of a printing plate sorting apparatus according to an embodiment of the present invention; FIG. 1 is a side view of a printing plate sorting device that is an embodiment of the present invention; FIG. 1 is a front view of a printing plate sorting apparatus that is an embodiment of the present invention; FIG. AA sectional view of FIG. 3 (only essential parts are shown).

FIG. 1 conceptually shows the state of use of a printing plate sorting apparatus that is an embodiment of the present invention.
The printing plate sorting apparatus 100 shown in the figure includes a receiving table 10 for receiving printing plates and transferring them to six stockers 200A to 200F, and a moving mechanism for moving the receiving table 10 in the horizontal direction (horizontal direction in FIG. 1). and a rotation mechanism for rotating the receiving table 10 around the vertical axis. Details of the moving mechanism and the rotating mechanism will be described later.

In FIG. 1, a printing plate made by a plate-making machine (not shown) is brought in from the right side and received by the receiving table 10 . As indicated by the dashed line in FIG. 1, the cradle 10 rotates about the vertical axis while moving horizontally toward the transfer destination (the stocker 200C in FIG. 1) of the received printing plate. Transfer to stocker 200C.
In this embodiment, the cradle 10 transfers printing plates only to the stocker 200C side (one side) in the attitude indicated by the broken line in FIG. , and stocker 200D.

In this way, by combining the movement of the cradle 10 by the moving mechanism and the rotation of the cradle 10 by the rotation mechanism, it is assumed that the plate received by the cradle 10 is transferred to only one side. Also, the received printing plate can be transferred to any of the six stockers 200A-F. At this time, the movement of the cradle 10 by the moving mechanism and the rotation of the cradle 10 by the rotation mechanism are simultaneously performed in parallel, so that the plates can be quickly transferred to the stockers 200A to 200F. can.

It should be noted that the direction in which printing plates are brought in and the layout (number of stockers) of stockers are not limited to those of the embodiment shown in FIG. For example, the stocker 200D in FIG. 1 may be removed and the printing plates may be carried in from where the stocker 200D was located. In this case as well, by combining the movement of the cradle 10 by the moving mechanism and the rotation of the cradle 10 by the rotation mechanism, the cradle 10 can transfer the received plates to the five stockers 200A to 200C, 200E, and 200F. It can be transferred to either.
Further, it is also possible to expand the range of movement of the cradle 10 by the movement mechanism and arrange more stockers.

Further, the moving direction of the cradle 10 by the moving mechanism is not limited to the left-right direction, and may be, for example, the front-rear direction. In this case, stockers can be arranged on both the left and right sides of the receiving table 10 in the moving direction (front-rear direction). Furthermore, the moving direction of the receiving table 10 by the moving mechanism is not limited to a straight line, and may be, for example, an arc.

As described above, the plate sorting apparatus 100 of the present embodiment includes a moving mechanism for horizontally moving the receiving table 10 and a rotating mechanism for rotating the receiving table 10 around the vertical axis. At 10, the printing plates can be transferred to stockers at a plurality of locations, and the degree of freedom in the direction in which the printing plates are carried into the cradle 10 and the arrangement of the stockers with respect to the cradle 10 is increased. Therefore, according to this embodiment, it is possible to increase the number of sorted printing plates with a simple configuration.

Next, a specific configuration of the plate sorting apparatus 100, which is one embodiment of the present invention, will be described.
2-4 show a plate sorting apparatus 100 that is an embodiment of the present invention. FIG. 2 also shows a stocker. Since the stockers 200A to 200F shown in FIG. 1 have the same configuration, they are collectively shown as the stocker 200 in FIG.

First, the cradle 10 will be described. The cradle 10 is installed via a translation mechanism 30 and a reversing mechanism 40 on a rotation table 21 that constitutes a rotation mechanism 20 which will be detailed later.
The translation mechanism 30 translates the translation member 32 along the translation guide 33 by driving the direct-acting motor 31 to translate the cradle 10 together with the reversing mechanism 40 in the arrow BB direction.
The reversing mechanism 40 rotates the support shaft 41 around its axis, thereby reversing (rotating) the cradle 10 connected to the support shaft 41 via the connecting member 42 in the direction of arrow C. As shown in FIG. A pulley 43a is attached to the support shaft 41, and a toothed belt 44 is stretched between the pulley 43a and a paired pulley 43b. The toothed plate 45 meshing with the toothed belt 44 is moved by the direct acting actuator 46 to reverse (rotate) the receiving table 10 . Specifically, when the toothed plate 45 is moved leftward in FIG. 2, the toothed belt 44 is moved clockwise, which causes the support shaft 41 to rotate clockwise and the cradle 10 to move. Reverse in the clockwise direction (direction of arrow C).

The plate (not shown) on the cradle 10 is transferred to the plate storage section 201 of the stocker 200 by a combination of the translational motion by the translation mechanism 30 and the reversal motion by the reversal mechanism 40 as described above. Specifically, the translation mechanism 30 translates the cradle 10 toward the stocker 200 , and then the reversing mechanism 40 reverses the cradle 10 . Note that the cradle 10 has a mechanism (not shown) for vacuum-sucking the printing plate, vacuum-sucking the printing plate until the reversal is completed, and cancels the vacuum-suction when the reversal is completed.
Thus, in this embodiment, the cradle 10 transfers the received plate only to one side (the right side in FIG. 2).

Note that the mechanism for transferring the printing plate to the stocker 200 is not limited to the mechanism (the translation mechanism 30 and the reversing mechanism 40) of this embodiment, and may be a mechanism in which a conveyor belt is provided on the cradle 10, for example.

Next, the rotation mechanism 20 that rotates the cradle 10 around the vertical axis will be described.
In the present embodiment, the rotation mechanism 20 rotates the turntable 21 around the vertical axis, thereby rotating the cradle 10 installed on the turntable 21 around the vertical axis.
The rotary table 21 is rotatably held on a moving table 51 constituting a moving mechanism 50 which will be described in detail later. Specifically, an annular gear 22 is fixed to the lower surface of the rotary table 21 , and the gear 22 is rotatably incorporated in a gear receiver 23 provided on the upper surface of the moving table 51 . A toothed belt 24 is wound around the gear 22. By driving the toothed belt 24 with a rotary motor 25, the gear 22 and the rotary table 21 rotate about a vertical axis.

Next, the moving mechanism 50 for horizontally moving the cradle 10 will be described.
In this embodiment, the moving mechanism 50 horizontally moves the receiving table 10 installed on the moving table 51 by horizontally moving the moving table 51 .
A sliding member 53 that slides along a linear motion guide member 52 provided on the upper surface of the base 60 is fixed to one end side of the lower surface of the moving table 51 , and the other end side of the lower surface of the moving table 51 is fixed. is provided with wheels 54 that roll on the upper surface of the base 60 . A connecting member 55 is fixed to the lower surface of the moving table 51 , and the moving table 51 is connected via this connecting member 55 to a toothed belt 56 that drives the cradle 10 in a moving direction. By driving the toothed belt 24 with a gear 58 connected to a rotary motor 57, the moving table 51 is moved horizontally (back and forth in FIG. 2, left and right in FIG. 3).

In this manner, the plate sorting apparatus 100 of the present embodiment combines the movement of the cradle 10 by the moving mechanism 50 and the rotation of the cradle 10 by the rotation mechanism 20, so that the plates received by the cradle 10 can be aligned. Even with a simple configuration in which only the side is transferred, the received printing plate can be transferred to any of the six stockers 200A to 200F as described with reference to FIG.

REFERENCE SIGNS LIST 100 plate sorting device 10 cradle 20 rotation mechanism 21 rotation table 22 gear 23 gear receiver 24 toothed belt 25 rotation motor 30 translation mechanism 31 direct-acting motor 32 translation member 33 translation guide 40 reversing mechanism 41 spindle 42 connecting member 43a, 43b pulley 44 toothed belt 45 toothed plate 46 linear actuator 50 movement mechanism 51 movement table 52 linear movement guide member 53 sliding member 54 wheel 55 connecting member 56 toothed belt 57 rotary motor 58 gear 60 base 200, 200A- F Stocker 201 Plate storage

Claims (2)

a cradle for receiving a plate and transferring it to a stocker, a movement mechanism for horizontally moving the cradle, and a rotation mechanism for rotating the cradle around a vertical axis ,
The cradle includes a reversing mechanism for reversing the cradle in one direction to transfer the printing plate to a stocker, and the rotating mechanism rotates the cradle having the reversing mechanism. Sorting device. 2. The printing plate sorting apparatus according to claim 1, wherein the movement of said cradle by said moving mechanism and the rotation of said cradle by said rotating mechanism can be carried out in parallel.

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