JP2524902Y2 - Roller support structure of printing machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial application field> The present invention relates to a roller support structure in a printing machine, which facilitates the attachment and detachment thereof.

<Related Art> Many of ink rollers and water supply rollers of printing machines are detachable as necessary for replacement or the like.

FIG. 5 is an exploded perspective view of a roller supporting structure of this type according to a conventional example. Conventionally, as shown in FIG.
The support shaft 13 is protruded from the bearing case 12 holding the end of the support shaft, while the support shaft 13 is fitted into the concave groove 15 of the support body 14, and a rectangular pressing plate 16 is covered from above. Plate 16
The roller is fixed to the support body 14 with bolts 17
Supports 11.

<Problem to be Solved by the Invention> Such a roller 11 is supported at both ends, and cannot be pulled out along the axial direction at the time of attachment / detachment. The roller 11 must be inserted and removed in a direction substantially perpendicular to its axial direction.
However, in the above-described conventional support structure, the bolt 17 is inserted into a bolt hole 18 formed in the holding plate 16 and
When the roller 11 is attached or detached, it is necessary to remove the bolt 17 from the screw hole 19 and completely disassemble the holding plate 16 and the bolt 17 from the support body 14.

However, the work of completely tightening and loosening the bolts 17 every time the roller 11 is attached and detached is troublesome, and is not only inefficient, but also because the removed holding plate 16 and bolts 17 are inadvertently inserted into the printing machine. There was also a risk that it would fall and cause an accident. Further, since the bolt 17 is completely removed, there is a disadvantage that a relatively large space is required for the attaching and detaching work.

The present invention is to solve such a problem in the conventional support structure, and to provide a roll support structure of a printing machine which can improve the workability of the roll attaching / detaching operation and can perform the attaching / detaching operation even in a small space. It is intended to be.

<Means for Solving the Problems> A roller support structure of a printing machine according to the present invention that achieves the above-mentioned object has a support shaft provided at an end of the roller in a groove formed in a support main body. While inserting from the direction,
In a roller support structure of a printing machine, a holding plate is put on the spindle portion, and a bolt inserted into a bolt hole of the holding plate is screwed to the supporting body to fix the holding plate to the supporting body. Two bolts formed on the holding plate so as to be slidable along the holding surface of the support body so that the holding plate can retreat in the roller axis direction from above the groove, and formed on the holding plate with the groove interposed therebetween. A hole is formed in the elongated hole, one end of which is cut out so as to allow the slide of the holding plate in a state where the bolt is inserted, and guides the sliding of the holding plate in the roller axis direction. A guide means is provided.

<Operation> The holding plate is released by loosening the bolts slightly, and the movement of the holding plate releases the concave groove of the support body, and the roller is attached / detached.

The bolt must be loosened to a minimum amount sufficient to release the fixing of the holding plate, eliminating the need to remove the bolt from the screw hole, and removing and attaching the roller with the holding plate still attached to the support body. It can be carried out.

<Example> Hereinafter, one example of the present invention will be described in detail with reference to the drawings.

FIG. 1 is a perspective view of a roller support structure according to an embodiment of the present invention, FIG. 2 is an exploded perspective view thereof, FIG. 3 is a partially cutaway plan view thereof, and FIG. It is a schematic structure figure showing the position of this example.

As shown in FIG. 4, this embodiment is applied to a support portion of a swimsuit roller 21 in a water supply device of a printing machine. In FIG. 4, reference numeral 22 denotes a watercraft, 23 denotes a water source roller, 24 denotes a metering roller, 25 denotes a transfer roller, 26 denotes a plate cylinder, 27 denotes an ink application roller, and 28 denotes a bridge roller.

A lever 29 is rotatably supported by a frame (not shown) coaxially with the transfer roller 25, and a roller lever 30 is pivotally attached to a tip end of the lever 29. The levers 29, 30 are provided with tongues 31, 32, respectively, projecting therefrom.
Is regulated so that the relative rotation position of the first and second members can be adjusted. At one end of the roller lever 30, a support portion 34 of the swimsuit roller 21 using the present support structure is formed, and at the other end of the roller lever 30, an air cylinder 35 is connected.

By adjusting the adjusting rod 33, both levers 29, 3
0 rotates relatively to adjust the contact pressure between the swimsuit roller 21 and the transfer roller 25, while the operation of the air cylinder 35 causes the two levers 29, 30 to rotate integrally and the two rollers 21, 25 come into contact. The swimsuit roller 21 is attached to and detached from the plate cylinder 26 in this state.

Next, the support portion 34 will be described. As shown in FIGS. 1 to 3, a block-shaped support main body 36 is formed at one end of the roller lever 30. The upper surface of the support body 36 is a flat pressing surface 37, and a U-shaped concave groove 38 is formed in the center of the pressing surface 37. Screw holes 39 are provided on both sides of the concave groove 38, respectively.

On the other hand, both ends (only one end is shown in the drawing) of the swimsuit roller 21 are the bearings 41 accommodated in the bearing case 40.
(See FIG. 3). The bearing case 40 has a support shaft 42 projecting therefrom, and the support shaft 42 is fitted into the concave groove 38 of the support body 36 described above.

On the holding surface 37 of the support body 36, a square holding plate 43 is mounted. A guide pin 44 is fixed to the upper surface of the holding plate 43 by welding, and a guide hole 45 into which the guide pin 44 is slidably inserted is formed in the support body 36. When the guide pin 44 is guided by the guide hole 45, the holding plate 43 slides along the holding surface 37, and the movement causes the holding plate 43 to move.
43 is capable of closing the groove 38 or retracting from the groove 38 to open it.

A bolt hole 46 is formed in the holding plate 43 at a position corresponding to the screw hole 39 described above. The bolt hole 46 is a long hole in the moving direction of the holding plate 43 so as to allow the sliding movement of the holding plate 43. In this embodiment, the bolt hole 46 has a U-shape with one end cut out.

Also, a pair of bolts 47 screwed into the screw holes 39 is a support body.
It penetrates through 36 and projects to the back side, and a split pin 48 can be attached to the protruding end.

In such a configuration, the holding plate 43 is attached to the support body 36 by inserting the guide pin 44 into the guide hole 45,
By screwing the bolt 47 into the screw hole 39 and attaching the split pin 48 to the protruding end, the bolt 47 is prevented from falling off, and the bolt 47 also prevents the holding plate 43 from falling off.

Thus, the support shaft 42 of the swimsuit roller 21 is fitted into the concave groove 38,
The support shaft 42 is supported by placing a holding plate 43 thereon and tightening it with a bolt 47, while loosening the bolt 47 and sliding the holding plate 43 as shown in FIG. When the upper portion 38 is opened, the support shaft portion 42 can be pulled out in the direction perpendicular to the axis.

In the above-described embodiment, the example in which the present invention structure is applied to the support portion of the swimsuit roller 21 has been described. However, the applicable portion of the present invention is not limited to this, and the roller is fixedly supported on the machine frame. It can be used for any supporting part including the case where it is performed.

<Effects of the Invention> As described above in detail with reference to the embodiment, according to the support structure of the present invention, the roll can be attached and detached without completely disassembling the holding plate and the bolt. In addition, it is possible to prevent the parts such as the presser plate and the bolt from falling into the machine. In addition, since the amount of movement of the holding plate and the bolt at the time of attachment and detachment is small, the attachment and detachment work can be performed in a small space. Furthermore, since the holding plate can be tightened without rotating, the holding plate can be firmly fixed.

[Brief description of the drawings]

FIG. 1 is a perspective view of a roller support structure according to an embodiment of the present invention, FIG. 2 is an exploded perspective view thereof, FIG. 3 is a partially broken plan view thereof, and FIG. FIG. 5 is an exploded perspective view of a roller supporting structure according to a conventional example, showing a schematic configuration diagram illustrating the positioning of the present embodiment. In the drawing, 21 is a swimsuit roller, 30 is a roller lever, 36 is a support body, 37
Is a holding surface, 38 is a concave groove, 39 is a screw hole, 40 is a bearing case, 42 is a support shaft, 43 is a holding plate, 44 is a guide pin, 45 is a guide hole, 46 is a bolt hole, 47 is a bolt hole, 47 is a bolt, 48 Is a split pin.

Claims (1)

(57) [Scope of request for utility model registration] 1. A support shaft provided at an end of a roller fits into a groove formed in a support body from a direction perpendicular to an axis.
In a roller support structure of a printing machine, a holding plate is put on the spindle portion, and a bolt inserted into a bolt hole of the holding plate is screwed to the supporting body to fix the holding plate to the supporting body. Two bolts formed on the holding plate so as to be slidable along the holding surface of the support body so that the holding plate can retreat in the roller axis direction from above the groove, and formed on the holding plate with the groove interposed therebetween. A hole is formed in the elongated hole, one end of which is cut out so as to allow the slide of the holding plate in a state where the bolt is inserted, and guides the sliding of the holding plate in the roller axis direction. A roller support structure for a printing machine, comprising a guide means.