JP2002166521A - Converting apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a converting apparatus capable of controlling the smooth adjustment of the transverse register of a reference roll with high accuracy. SOLUTION: In the converting apparatus having a reference roll 1 such as a plate cylinder or the like, bearing parts on the man side and gear side of the reference roll 1 are supported on one roll stand 6 and a movement adjusting mechanism for moving the reference roll 1 in an axial direction is provided on the roll stand. The effect of the sliding of the bearing on the man side and a housing is removed and the effect of the roll assembling accuracy to the control accuracy of register adjustment is reduced to a large extent and the highly accurate smooth adjustment of the transverse register of the reference roll can be controlled.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a converting device for adjusting a lateral register by moving a reference roll such as a plate cylinder in an axial direction.

[0002]

2. Description of the Related Art Generally, a converting device such as a gravure printing press rotates several rolls such as a plate cylinder and an impression cylinder. When adjusting a lateral register, a reference roll such as a plate cylinder is used. It is designed to move in the axial direction. Conventionally, this adjustment is based on the gear side (the wall on which the worker cannot approach when the machine is installed), and the gear side is provided with a movement adjustment mechanism for lateral registration. Is the free end.
A method of following the movement on the gear side is generally adopted.

There are various driving methods for the above-mentioned lateral register movement adjusting mechanism, such as a method in which a servo motor and a ball screw are combined, and a method in which a servo motor and a ball screw are further combined with a cotter. Also, there are various types of methods for transmitting the drive to the roll, such as a method in which the housing of the bearing is moved, and a method in which a thrust bearing is provided at the end of the roll shaft and transmitted by this. On the other hand, the man side can follow the movement of the gear side by sliding the bearing and the housing or sliding the shaft and the bearing (cam follower) to follow the movement of the gear side.

[0004]

However, when high-accuracy lateral register adjustment is required, especially when high-precision rotation accuracy is also required, the fitting tolerance between the bearing and the housing is strictly required. Then, it is necessary to generate a slip between the bearing and the housing. At this time, slippage may be difficult to occur due to tight fitting tolerance, and it may be difficult to follow the movement of the gear side, and it may be difficult to perform the movement adjustment with high accuracy. Further, since the fitting tolerance is strict, the slipperiness may be changed depending on the assembling accuracy, that is, the skill of the assembling operator. On the other hand, when the tolerance between the bearing and the housing is loosened or the configuration of the shaft and the bearing is adopted to make it slippery, it is difficult to increase the rotational accuracy, so that it cannot be applied in terms of accuracy.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a converting device capable of controlling a highly accurate and smooth lateral register adjustment of a reference roll. Is to do.

[0006]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, a converting device according to the present invention is provided in a converting device having a reference roll such as a plate cylinder. It is characterized in that the roll mount is supported by one roll mount and a movement adjusting mechanism for moving the reference roll in the axial direction is provided on the roll mount.

[0007]

Embodiments of the present invention will be described below with reference to specific examples.

FIG. 1 shows an example of a converting device according to the present invention, and more specifically, is a schematic configuration diagram showing a reference roll together with its movement adjusting mechanism.

In FIG. 1, the right side shows the gear side, and the left side shows the man side. As shown in the drawing, a bearing 2 and a housing 3 supporting one end thereof are mounted on a gear side, and a bearing 4 and a housing 5 supporting the other end are mounted on a man side of the roll 1. Are supported by one roll base 6.

Then, a ball screw 7 for allowing the roll base 6 to move in the lateral direction for adjusting and moving the roll 1 in the axial direction, a servomotor 8 for driving the ball screw 7, and a guide for moving the roll base. Linear guide 9,
The apparatus includes a displacement sensor 10 for measuring the amount of movement and performing feedback control, and a support base 11 for supporting all of them, and has a configuration having a guide and a driving mechanism for performing linear motion.

However, the gear-side and man-side bearings have a conventional roll support structure in which expansion and contraction due to heat or the like are received at the free end of the man-side as fixed ends and free ends, respectively.

In the converting device provided with the movement adjusting mechanism having the above-described structure, the movement amount required for adjusting the register is grasped by the displacement sensor 10 based on an external or internal signal, and the servo motor 8 is operated based on the movement amount. Drive
The lateral register of the roll 1 can be adjusted by moving the roll base 6 by a necessary amount.

The method of driving the roll base for fixing the housing is not limited to the above-described combination of the servomotor and the ball screw. For example, select an appropriate mechanism according to the weight of the roll, the control range of the register adjustment (movement amount), the control accuracy of the register adjustment, etc., such as a mechanism combining a servo motor and a ball screw with a cotter, a mechanism using a linear motor, etc. Is possible.

Similarly, a linear guide can be selected from rolling guides (balls, rollers), sliding guides, and static pressure guides.

The control mechanism of the lateral register adjustment in the converting apparatus according to the present invention can be applied to the registration of a picture such as a gravure printing machine, and also the high-precision registration of the front and back can be performed even in a simultaneous front and back molding apparatus using resin. . In particular, it is effective for a converting device having a small roll.

As shown in FIGS. 2 (A) and 2 (B), the control mechanism for adjusting the lateral register in the converting according to the present invention is such that a roll mount 6 is provided around a plate cylinder such as an ink pan 12 in a gravure printing machine or the like. By mounting the components, placing them on the trolley 13 and detaching them from the frame 14, the cassette type structure can be obtained.

As described above, the present invention has been described in detail based on the embodiments. However, the refueling method according to the present invention is not limited to the above-described embodiments, and it does not depart from the gist of the present invention. It goes without saying that various modifications are possible.

[0018]

According to the present invention, in a converting device having a reference roll such as a plate cylinder, a mandrel of a reference roll and a bearing portion of a gear side are supported by a single roll stand, and the reference roll is moved in an axial direction. The roll mount is equipped with a movement adjustment mechanism that eliminates the effect of slippage between the bearing and the housing on the man side, greatly reducing the effect of roll assembly accuracy on register adjustment control accuracy. Therefore, it is possible to control the highly accurate and smooth lateral register adjustment of the reference roll.

[Brief description of the drawings]

FIG. 1 shows an example of a converting device according to the present invention, and is a schematic configuration diagram showing a reference roll together with a movement adjusting mechanism thereof.

FIG. 2 shows an example in which a control mechanism for lateral register adjustment in converting according to the present invention is a cassette system.
(A) is a side view, and (B) is a cross-sectional view passing through the center of (A).

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Roll 2 Bearing 3 Housing 4 Bearing 5 Housing 6 Roll stand 7 Ball screw 8 Servo motor 9 Linear guide 10 Displacement sensor 11 Support stand 12 Ink pan 13 Dolly 14 Frame

Claims (1)

[Claims] In a converting apparatus having a reference roll such as a plate cylinder, a movement adjusting mechanism for moving a reference roll in an axial direction by supporting a bearing portion on a man side and a gear side of the reference roll by a single roll stand. A converting device comprising: a roll base.