JPH0561208A - Positioning method and device for printing plate placing plate and printing plate placing plate - Google Patents

Abstract

PURPOSE:To obtain the printing plate placing plate which can be mounted with many sheets of printing plates and the positioning device for the printing plate placing plate. CONSTITUTION:The printing plate placing plate 10 mounted with the PS plates 12 is inserted from an aperture 56 into a loading port 54 formed on a stage 52 of a loading section 50. Many guide rollers 66 and pole guides 68 are provided on a side wall 60 of a loading port and the printing plate placing plate is guided inward in an approximately horizontal state. Blocks 80, 82 are provided on the printing plate placing plate and ball casters 74, 76 are disposed on a floor surface G in the loading port. The printing plate placing plate is positioned by the block 80 and the ball caster 74. The positioning of the printing plate placing plate in the rotating direction around the block 80 is executed by the block 782 and the caster 76. The printing plate placing plate is supported from the floor surface by these blocks and ball casters.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for positioning a printing plate mounting table for mounting a printing plate to be supplied to a printing plate printing apparatus, a positioning device for the printing plate mounting table, and a printing plate mounting table.

[0002]

2. Description of the Related Art A printing plate (hereinafter referred to as "PS plate") used in a newspaper rotary press or the like has a base material such as aluminum coated with a photosensitive material and developed after an image is exposed by a printing apparatus. It is then supplied to the rotary press.

Generally, a large number of PS plates are stacked in a horizontal or inclined state, mounted on a printing plate mounting table (hereinafter referred to as "skid"), and fixedly packed. These PS plates are sent together with the skid from the printing plate manufacturing company to users such as newspaper companies. This skid is arranged in the loading section of the printing apparatus, and the PS plate mounted on the skid is supplied to the printing plate printing apparatus from the uppermost layer.
Usually, the same size PS plate is mounted on one skid.

In the printing process on the PS plate, the size of the PS plate is selected according to the size of the original. For this reason, the user selects the most suitable size of PS plates from among various types and supplies them to the printing plate printing apparatus.

On the other hand, in response to the need for automation of the printing process on a PS plate, it has been considered that a printing plate printing apparatus is equipped with a plurality of skids. PS plates of different sizes are mounted on these skids. Further, it is considered that a large number of PS plates (for example, 750) are mounted on these skids at one time. A PS plate supply device that selects and supplies an optimum size PS plate from PS plates mounted on a plurality of skids to the printing plate printing apparatus is also under study.

When the printing plate placing table is positioned on the PS plate feeding device, for example, a plurality of groove-shaped concave portions provided in the printing plate placing table and a projecting portion facing each of these groove-shaped concave portions are provided. And are engaged at a predetermined position.

[0007]

However, when a large number of PS plates are mounted on one skid, the skid itself becomes strong so as to withstand the weight of the PS plates as well as the weight of the PS plates. The weight is increasing. Therefore, the conventional positioning device has a problem that it cannot operate accurately due to the weight of the skid and the PS plate. Especially when engaging a plurality of grooves with a protrusion, if there is a dimensional error between the grooves and the protrusion, they will not engage in a normal state. It may be damaged.

The present invention has been made in consideration of the above facts, and is for positioning a printing plate mounting table on which a large number of printing plates are mounted at a predetermined position. An object of the present invention is to obtain a printing plate placing table positioning method, a printing plate placing table positioning device, and a printing plate placing table that can be accurately positioned even if the printing plate placing table becomes heavy.

[0009]

A method of positioning a printing plate mounting table according to the present invention is designed to send the printing plate from a printing plate mounting table having a large number of printing plates mounted above a base table. A method of positioning a printing plate mounting table for positioning the mounting table at a predetermined position, wherein when two bases of the printing plate mounting table are supported while being held in a substantially horizontal state, one of them is used as an axial fulcrum and the other is Limits only the direction of rotation about the axis fulcrum.

The printing plate placing table positioning apparatus of the present invention comprises:
A positioning device of a printing plate mounting table for positioning the printing plate mounting table at a predetermined position in order to send a printing plate from a printing plate mounting table on which a large number of printing plates are mounted above a base, A guide means for guiding the base of the printing plate placement table to a predetermined position in a substantially horizontal state, a shaft support means for pivotally supporting the base about a predetermined position, and a predetermined position of the base as a center. Limiting means for limiting movement in the rotation direction, and the printing plate mounting table is supported by the shaft supporting means and the limiting means.

The printing plate mounting table of the present invention is a printing plate mounting table on which a large number of printing plates are mounted above a horizontally arranged base, and a conical recess formed in a block-shaped member. And a ball-caster that is rotatably supported by one of the ball casters facing the recess and the other facing the recess, a triangular groove formed in the block-shaped member, and a ball caster facing the triangular groove. One is provided and is supported by the other opposite, and a limiting unit that limits the movement of the base in the rotational direction about the shaft supporting unit is provided.

[0012]

According to the method for positioning the printing plate mounting table of the present invention described above, when the printing plate mounting table is supported at at least two points, one of them is positioned at a predetermined position. The printing plate mount is
In this position, it is rotatably supported. On the other hand, the other restricts only the rotation direction of the printing plate placement table centering on one,
By these, the printing plate mounting table is positioned at a predetermined position.

Since the relative positions of these two points are not limited to each other, the printing plate placing table can be accurately positioned even if an error occurs between these positions.

The printing plate placing table positioning apparatus of the present invention comprises:
The guide means guides the base to a predetermined position in a substantially horizontal state. Further, the printing plate mounting table is supported by the shaft supporting means and the limiting means.

Since the printing plate placing table positions and supports the printing plate placing table by the shaft supporting means and the limiting means, the printing plate placing table has a small portion for positioning and supporting the printing plate placing table. In other words, if only these are hardened, the weight of the printing plate mounting table can be withstood.

The printing plate mounting table of the present invention is provided with either a ball caster or a block in which a conical concave portion corresponding to the ball caster is formed as a shaft supporting means.
Further, as the limiting means, either a ball caster or a block in which a triangular groove corresponding to the ball caster is formed is provided. These position the printing plate mounting table in a predetermined position by the other corresponding to each other,
It is designed to support the printing plate mounting table.

The ball caster relatively moves to the center of the recess by the load applied by the printing plate mounting table between the conical recess of the block and the ball caster. Thereby, the relative position between the block and the ball caster can be determined at one point.

Further, the load of the printing plate placing table acts between the triangular groove of the block and the ball caster,
The ball casters move relative to the top of the triangular groove. Therefore, the ball caster can move along the top of the triangular groove, but cannot move over the inclined surface of the triangular groove, so that the movement of the ball caster along the opposed inclined surface of the triangular groove is limited.

Any one of the ball caster and the block may be provided on the printing plate mounting table, and the other opposite may be applied to the positioning device.

The means such as wheels for transporting the printing plate mounting table to the loading position may be provided in the printing plate mounting table or the positioning device for the printing plate mounting table, but it is carried out by other means such as a forklift. But it's okay. by this,
By transporting a printing plate mounting table equipped with a large number of printing plates and loading and transferring it to the positioning device of the printing plate mounting table as it is, the printing plate mounting table can be positioned almost at the same time. It is possible to perform efficient work with less load.

[0021]

Embodiments of the present invention will be described with reference to the drawings.

As shown in FIG. 1, the printing plate mounting table 10 is shown.
Is configured such that a large number of printing plates (hereinafter referred to as "PS plates 12") are stacked and mounted, and are loaded into the loading unit 50 of the printing plate mounting table. The printing plate mounting table 10 can mount a large number (for example, 750) of PS plates 12. The arrow W direction shown in each drawing is the width direction of the printing plate mounting table 10, and the arrow F direction is the vertical direction of the printing plate mounting table 10.

As shown in FIG. 1, the printing plate mounting table 10 is shown.
The mounting portion 16 is provided on the base 14 which is a thick plate.
In addition, in the lower part of this base 14, the vertical direction (direction of arrow F)
Legs 18 are provided at both ends of the center portion and both ends in the width direction (arrow W direction). The lower sides of the legs 18 are connected by a floor plate 20, and a supporting member 36 having a substantially L-shaped cross section is joined to the lower surface of the base 14 inward in the vertical direction. ..

When the printing plate mounting table 10 is stored, it is supported on the floor by the legs 18, and the floor plate 20 and the supporting member 36 cause the legs 18 to be deformed even when the load of the printing plate mounting table 10 is received. There is no such thing.

Further, on the lower surface of the base 14, the contact members 38 are fixed inside the respective support members 36. A pair of forks 40 of a forklift are inserted into the lower surface of the base 14 when the printing plate mounting table 10 is moved. When the printing plate mounting table 10 is inserted from the outside in the width direction of the printing plate mounting table 10, the pair of forks 40 are inserted. Are in contact with the contact members 38, respectively. A support member 36 is located near the pair of forks 40, and the insertion position of the forks 40 is regulated.

Further, the pair of forks 40 can be inserted into the lower surface of the base 14 from between the leg portions 18. In this case, the pair of forks 40 directly contacts the lower surface of the base 14. The leg portion 18 regulates the insertion position of the pair of forks 40. As a result, the printing plate mounting table 10 is arranged so that the position of the center of gravity of the fork
Can be lifted by.

A loading section 16 provided on the upper surface of the base 14.
Includes a back plate 22 and a support plate 24. As shown in FIG. 2, the back plate 22 is erected on the upper surface of the base 14 with a slight inclination (15 degrees with respect to the vertical). The support plate 24 projects slightly upward from the end of the back plate 22 on the base 14 side so as to form a right angle with the back plate 22. Support members 26 and 28 are respectively interposed between the back plate 22 and the support plate 24 and the upper surface of the base 14. A plurality of pillars 30 are provided on the surface of the back plate 22 on the base 14 side.

The printing plate mounting table 10 can maintain a constant state by the supporting members 26 and 28 and the column 30 even if a large number of PS plates 12 are mounted on the mounting part 16. In the present embodiment, the back plate 22 is inclined, and the inclination of the back plate 22 causes the center of gravity of the printing plate mounting table 10 to be positioned substantially above the center of the base 14. Further, due to the inclination of the back plate 22, the printing plate mounting table 10 is
The amount of movement of the center of gravity is reduced between a state in which a large number of PS plates 12 are mounted and a state in which no PS plates 12 are mounted. Although the inclination angle of the back plate 22 with respect to the vertical direction (vertical direction in the plane of FIG. 3) is not limited to this, there are a state in which a large number of PS plates 12 are mounted and a state in which the PS plates 12 are not mounted. Therefore, it is preferable that the movement of the center of gravity of the printing plate mounting table 10 is small.

The PS plate 12 is mounted on the mounting portion 16. The PS plate 12 is laminated along an inclined surface (hereinafter referred to as “mounting surface”) 32 of the back plate 22 in a state where one end of the outer periphery of the PS plate 12 is in contact with the support plate 24 and leans against the back plate 22. It will be installed. In addition, the mounting surface 32 of the back plate 22 and the P of the lowermost layer
In order to protect the plate surface of the PS plate 12 between the S plate 12,
A backing paper 33 such as cardboard is interposed. Note that interleaving paper or the like may be sandwiched in order to protect the PS plates 12 to be laminated from friction against each other.

The printing plate mounting table 10 has a back plate 22 on which a large number of P
The S plates 12 are stacked and mounted, and after the PS plates 12 are wrapped in moisture-proof paper (not shown), plastic or wood (for example, thickness 1
A top plate 34 such as a 0 mm veneer plate) is placed above the PS plate 12, and a belt (not shown) is wound in the horizontal or vertical direction for packaging. Further, the belt, the top plate 34, and the moisture-proof paper are removed after being loaded in the loading unit 50 described below.

A plurality of the loading sections 50 are arranged at a predetermined interval in the F direction, so that a plurality of printing plate placement tables 10 can be loaded at the same time. A supply device (not shown) for supplying the PS plate 14 to a plate material printing device (not shown) is provided adjacent to the loading section 50, and the PS plate 12 of the printing plate mounting table 10 is printed in sequence from the uppermost layer. It is designed to be supplied to the device.

As shown in FIG. 3, the loading section 50 is provided on a long rectangular stage 52 whose longitudinal direction is in the direction of arrow H. The stage 52 is fixed to the floor surface G by an anchor bolt or the like (not shown). In addition, on the stage 52, from one end side in the arrow W direction (width direction),
A rectangular cut is formed along the width direction, and a loading port 54 of the printing plate mounting table 10 is formed.

Opening 56 at the widthwise end of the loading port 54
Is gradually expanded from the middle portion of the stage 52 in the width direction to form a guide surface 58. Also, the loading port 54
A side wall 60 and a back wall 62 are formed on the back side of the guide surface 58. The distance between the side walls 60 facing each other is slightly wider than the vertical dimension of the printing plate mounting table 10. In addition, the space between the opening 56 and the back wall 62 is equal to the size PS of the large plate.
The size is substantially the same as the dimension along the width direction of the printing plate mounting table 10 on which the plate 12 is mounted.

The printing plate mounting table 10 is supported by the fork 40 through the opening 56 and inserted into the loading port 54. At this time, the printing plate mounting table 10 is guided between the side walls 60 facing each other by the guide surface 58 that gradually narrows the opening 56.

A guide roller portion 64 is provided on the floor surface G side of the side wall 60. The guide roller portion 64 is provided between the vicinity of the middle portion of the guide surface 58 and the back wall 62, and a plurality of guide rollers 66 are arranged on the upper surface. The guide rollers 66 are arranged such that their axial directions are directed toward the side wall 60 and are parallel to each other. The guide roller 66 is slidable along its axial direction.

A number of ball guides 68 are attached to the side wall 60 above the guide roller portion 64. In the ball guide 68, a part of the outer peripheral surface of the ball that is freely rotatable is slightly projected from the side wall 60.

The printing plate mounting table 10 inserted into the loading port 54 through the opening 56 includes a guide roller 66 and a ball guide 6.
By means of 8, it is possible to smoothly guide the inside of the stage 52.

A stopper 70 is provided at a substantially central portion of the back wall 62.
Are arranged. The stopper 70 has a protruding portion 70.
A also has the function of a shock absorber, and the movement of the printing plate mounting table 10 inserted to the vicinity of the back wall 62 is gently stopped.

As shown in FIG. 4, a base plate 72 is attached to the floor surface G at the center of the loading port 54 along the width direction of the stage 52. The base plate 72 has ball casters 74 serving as support means and restriction means at both ends in the width direction of the stage 52, respectively.
76 are provided. As shown in FIG. 5 and FIG. 6, the ball casters 74 and 76 have the base plate 72.
Bracket 78 fixed to the upper surface of the steel ball 7
8A is partly rotatably housed and part is bracket 7
8 is projected.

On the other hand, as shown in FIGS. 3 and 4, blocks 80 and 82 corresponding to the ball casters 74 and 76 are provided on the bottom surface of the base 14 of the printing plate mounting table 10. These blocks 80 and 82 are arranged between the legs 18 at both ends in the width direction at the center of the base 14 in the vertical direction.

As shown in FIG. 5, a block 80 corresponding to the ball caster 74 on the back wall 62 side of the loading port 54.
A substantially conical recess 80A is formed on the surface (lower surface) on the side corresponding to the ball casters 74. Further, as shown in FIG. 6, in the block 82 corresponding to the ball caster 76 on the opening 56 side of the loading port 54, a concave portion is formed on the surface on the ball caster 76 side by the triangular groove 82A. The top portion 82B of the triangular groove 82A is provided along the width direction of the printing plate mounting table 10, and the apex 80B of the block 80 is located on the extension line of the top portion 82B.

As shown in FIGS. 3 and 4, the ball caster 74 abuts on the concave portion 80A of the block 80, and when the weight of the printing plate mounting table 10 acts, the center portion thereof moves to the apex 80B along the inclination of the concave portion 80A. The steel ball 78A of the ball caster 74 is relatively moved and is housed in the recess 80A. The ball caster 76 contacts the triangular groove 82A of the block 82 and moves to the top 82B along the inclination of the triangular groove 82A by the load of the printing plate mounting table 10 (vertex 80B).
3) and the steel ball 78A is housed in the triangular groove 82A. still,
The top 82B of the ball caster 82 is freely movable in the groove direction (arrow W direction).

As shown in FIG. 2, the center of the ball caster 74 is located at the apex 80B of the block 80, and the center of the ball caster 76 is located at the top 82B of the block 82. Are positioned relative to the loading section 50. Also, the printing plate mounting table 1
When 0 is positioned in the loading section 50, the weight of the printing plate mounting table 10 is supported by the ball casters 74, 76 and the corresponding blocks 80, 82. Causes the base 14 to be substantially horizontal. In this state, the floor plate 20 of the leg 18 is
A slight gap is formed with respect to the guide roller 66. Further, when the base 14 of the printing plate mounting table 10 tries to tilt when positioning the printing plate mounting table 10, the guide roller 66 contacts the base plate 20 to prevent the printing plate mounting table 10 from tilting. It has become. Further, since the guide roller 66 is slidable along its axial direction, the printing plate mounting table 10 is smoothly moved relative to the ball casters 80 and 82.

The ball casters 74 and 76 are mounted on the loading section 50.
From the printing plate mounting table 10 positioned by the blocks 80 and 82, the PS plate feeding device (not shown) can feed the loaded PS plates 12 to the plate material printing device in order from the uppermost layer.

Next, the operation of this embodiment will be described. In the mounting portion 16 of the printing plate mounting large 10, the PS plate 12 whose one end is in contact with the support plate 24 is leaned against the back plate 22 and mounted on the mounting surface 3
It is mounted by stacking two. This printing plate mounting table 10
The fork 40 of a transportation means such as a forklift is inserted below the base 14 and is supported and transported. Further, when the printing plate placement table 10 is stored, a plurality of legs 1 are attached to the floor surface G.
It is performed in the state supported by 8.

The leg portions 18 are connected by the floor plate 20, and the connection between the leg portions 18 and the base 14 is reinforced by the support members 36. Therefore, even if the printing plate mounting table 10 is mounted with a large number of PS plates 12, a plurality of leg portions 1
8 can reliably support each other in a constant shape with respect to the weight of the printing plate mounting table 10.

The PS plate 12 mounted on the printing plate mounting table 10 is supplied to a plate material printing device (not shown). PS version 1
When 2 is supplied to the plate material printing apparatus, the printing plate mounting table 10 is positioned at a predetermined position of the loading unit 50 so as to face the PS plate supply apparatus.

When carrying the printing plate mounting table 10,
The fork 40 is inserted from the width direction side of the printing plate mounting table 10, and the contact plate 38 disposed on the lower surface of the base 14 is in contact with the upper surface of the fork 40. The moving range of the inserted pair of forks 40 is restricted by the support member 34, and the blocks 40 and 82 provided on the lower surface of the base 14 do not abut. Further, when the fork 40 is inserted and lifted from the vertical direction of the printing plate mounting table 10, the fork 40 is inserted from between the leg portions 18 and the lower surface of the base 14 is lifted. In this case, since the insertion positions of the pair of forks 40 are regulated by the leg portion 18, the pair of forks 40 do not hit the blocks 80 and 82, and the center of gravity of the printing plate placement table 10 is not removed. ..

In the printing plate mounting table 10, a pair of forks 40 are inserted from the block 82 side along the width direction of the printing plate mounting table 10 and lifted, and the printing plate mounting table 10 is conveyed to the loading section 50. further. The printing plate mounting table 50 is inserted into the opening 56 from the opening on the width direction side of the stage 52 of the loading section 50.

The insertion from the opening 56 of the printing plate mounting table 10 is performed while the floor plate 20 of the printing plate mounting table 10 is positioned slightly above the guide roller portion 64 of the loading section 50.
The printing plate mounting table 10 inserted through the opening 56 is guided between the side walls 60 by the guide surface 58. A large number of ball guides 68 are disposed on the side wall 60, and the guide rollers 6
6 is used to guide the printing plate mounting table 10 to the back wall 62 side.

The printing plate mounting table 10 guided to the vicinity of the inner wall 62 comes into contact with a stopper 70 provided on the inner wall 62 to be buffered and prevented from being inserted. In this position, the ball casters 74 and 76 are located below the blocks 80 and 82 of the printing plate mounting table 10. In this state, the pair of forks 40 is lowered to lower the printing plate mounting table 10.
By lowering the printing plate mounting table 10, the printing plate mounting table 1
The ball casters 74 and 76 are in contact with the blocks 80 and 82 provided on the lower surface of the base 14 of No. 0, respectively.

Further, by lowering the printing plate mounting table 10, the weight of the printing plate mounting table 10 supported by the pair of forks 40 is equal to that of the ball caster 74 and the block 82 accommodated in the recess 80A of the block 80. It is supported by the ball caster 76 inserted in the triangular groove 82A.

When a load is applied between the block 80 and the ball caster 74, the ball caster 74 relatively moves along the inclination of the conical recess 80A of the block 80,
The center of the ball caster 74 is located at the apex 80B. As a result, one point of the printing plate mounting table 10, that is, the apex 80B of the block 80 is positioned with respect to the loading section 50.

In addition to positioning the block 80, the block 82 and the ball casters 76 serve as the printing plate mounting table 1.
With the weight of 0, the center of the ball caster 76 is the triangular groove 8
Located at the top 82B of 2A. The ball caster 76 is
The weight of the printing plate mounting table 10 acts on the block 82 to move the center of the triangular plate 82A relative to the top 82B along the inclination of the triangular groove 82A. As a result, the printing plate placement table 10 is positioned by the movement of the block 80 in the rotational direction about the apex 80B being blocked by the top portion 80B of the triangular groove 80A.

In the positioning by the blocks 80 and 82, the position of one point is accurately determined by the block 80,
The block 82 determines only the position in the rotation direction (direction of arrow A shown in FIG. 3) around the position. Therefore, even if there is an error in the distance between the blocks 80 and 82 and the distance between the centers of the ball casters 74 and 76, accurate positioning can be performed with the block 80 as the base point. If the distance between the blocks 80 and 82 is exactly the same as the distance between the ball casters 74 and 76, the block 82 may also be provided with a conical recess 80A instead of the triangular groove 82A.

As a result, the loading section 5 of the printing plate mounting table 10 is
Positioned relative to 0. Further, in this state, the weight of the printing plate mounting table 10 is equal to that of the block 80 and the ball caster 7.
4 and the block 82 and the ball caster 76.

At the time of inserting and positioning the printing plate mounting table 10 into the loading section 50, the base 14 of the printing plate mounting table 10 is
The horizontal state is maintained. When the base 14 of the printing plate mounting table 10 tilts, the floor plate 20 of the leg portion 18 contacts the guide roller 60 to prevent the tilting. Further, the guide roller 66 is
Even when the floor plate 20 is in contact, the blocks 80 and 82 and the ball casters 74 and 76 slide along the axial direction so that the printing plate mounting table 10 can be smoothly moved for positioning. There is. Therefore, the base 14
If the printing plate mounting table 10 is inclined, the positioning of the printing plate mounting table 10 is surely performed, and the base 14 is brought into a substantially horizontal state.

The guide means for horizontally guiding the printing plate mounting table 10 into the loading port 54 is provided with a guide roller 66 on the side wall 60 and a ball guide 68 on the guide roller portion 64.
May be provided. Also, the guide means is not limited to this,
Other methods can be applied as long as the printing plate mounting table 10 can be horizontally guided to a predetermined position.

When the printing plate mounting table 10 is positioned in the loading section 50, the P mounted on the printing plate mounting table 10 is set.
The S plate 12 corresponds to a PS plate delivery device (not shown). As a result, the PS plate 12 mounted on the printing plate mounting table 10 is sent out from the uppermost layer.

In the printing plate mounting table 10, since the back plate 22 which leans the PS plate 12 is inclined, the PS plate 1 mounted on the printing plate mounting table 10 is inclined.
Even if the remaining amount of 2 becomes small, the position of the center of gravity hardly moves. Therefore, the printing plate placement table 10 loaded in the loading section 50 is in a state of being supported by the ball casters 74 and 76. Therefore, in the loading unit 50, the weight of the printing plate mounting table 10 does not directly act on other parts such as the ball bearings 66, so that the load on the weight of the printing plate mounting table 10 can be reduced. The device itself is strong and does not need to be upsized.

Any of the blocks 80 and 82 provided on the printing plate mounting table 10 and constituting the shaft supporting means and the limiting means may be arranged on the back wall 62 side. Further, in this embodiment,
The example in which the blocks 80 and 82 are provided on the printing plate placing table 10 and the ball casters 74 and 76 are provided on the loading section 50 has been described, but the ball casters 74 and 7 are provided on the printing plate placing table 10.
6 may be arranged and the blocks 80 and 82 may be provided in the loading part 50 so as to correspond to the ball casters 74 and 76, respectively.

In this embodiment, the PS plate 12 is attached to the back plate 22.
Printing plate mounting table 1 that is tilted and mounted while leaning against the table
However, the shape of the printing plate mounting table is not limited to this, and a so-called flat stacking printing plate mounting table in which the PS plates 12 are stacked horizontally is also applicable.

[0063]

As described above, according to the printing plate placing table positioning method of the present invention, the printing plate placing table can be accurately positioned at a predetermined position.

Further, according to the printing plate placing table and the positioning device of the printing plate placing table of the present invention, it is possible to accurately position the printing plate placing which becomes a heavy load by mounting a large number of printing plates with a simple structure. There is an excellent effect that can be.

[Brief description of drawings]

FIG. 1 is a perspective view of a printing plate mounting table according to the present embodiment.

FIG. 2 is a side view of the printing plate placement table according to the present embodiment.

FIG. 3 is a perspective view of a main portion of a printing plate placement table positioning apparatus according to the present embodiment.

FIG. 4 is a front view of a main part of the printing plate placement table according to the present embodiment.

FIG. 5 is a front view of a main portion showing a shaft support unit according to the present embodiment.

FIG. 6 is a front view of the main parts showing a limiting means according to the present embodiment.

[Explanation of symbols]

 10 printing plate mounting table 12 PS plate (printing plate) 14 base 16 loading part 18 leg 40 fork 50 loading part (positioning device) 64 guide roller part (guide means) 68 ball guide (guide means) 70 stopper 74 ball caster (Axial support means) 76 Ball casters (restriction means) 80 blocks (axial support means) 82 blocks (restriction means)

Claims (3)

[Claims] 1. In order to send out a printing plate from a printing plate mounting table mounted above a base and having a large number of printing plates mounted thereon,
A method of positioning a printing plate mounting table for positioning the printing plate mounting table at a predetermined position, wherein one of them is a shaft fulcrum when two bases of the printing plate mounting table are supported while being held in a substantially horizontal state. And the other restricts only the rotation direction about the shaft fulcrum. 2. In order to send out the printing plate from a printing plate mounting table mounted above the base and having a large number of printing plates mounted thereon,
A positioning device for a printing plate mounting table for positioning the printing plate mounting table at a predetermined position, the guide means for guiding the base of the printing plate mounting table to a predetermined position in a substantially horizontal state, and the base. A printing plate is provided, which includes a shaft supporting unit that pivotally supports a predetermined position and a limiting unit that restricts movement of the base in a rotational direction around the predetermined position. The printing plate is configured by the shaft supporting unit and the limiting unit. A positioning device for a printing plate mounting table, which supports the mounting table. 3. A printing plate mounting table for sending out the printing plate from a printing plate mounting table, which is mounted above a horizontally arranged base plate and on which a large number of printing plates are mounted, and which has a block shape. The printing plate mounting table is rotatably supported by a conical recess formed in the member and one of the ball casters facing the recess, which is provided on the base or the printing plate mounting table and opposed to the other. The printing plate by means of a shaft supporting means, a triangular groove formed in the block-shaped member, and one of the ball casters facing the triangular groove, which is provided on the base or the printing plate mounting table and is opposed thereto. A printing plate mounting table, comprising: a supporting unit that supports the mounting table and restricts movement of the base in the rotational direction about the shaft supporting unit.