JPS636457B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a remote adjustment device for nipping rollers in a rotary printing press.

In recent years, with the increase in speed and automation of rotary printing presses, operators have become increasingly busy while operating the machines.

Conventionally, the adjustment of each part of the machine was done by the operator by going to the adjustment point near the machine, but as mentioned above, due to busy schedules, it is increasingly necessary to perform the adjustment at the operator console.

The present invention has been made to address the above need.

The remote control device for nipping rollers according to the present invention can be applied to any type of rotary folding machine, but for the sake of clarity, an embodiment will be described in which it is applied to a folding machine of a general type of newspaper rotary printing machine. I will explain about it.

In FIG. 1, there is a folding frame 1 that is adapted to two folding machines of the same type, separated into left and right sides, and a traveling machine 9 is integrated on a former upper drag roller 3 rotatably supported by a folding rail frame 2. , is folded into two in the longitudinal direction of the running direction by the former 4, and then passed through the forming roller 5 and a plurality of nipping rollers 6a, 6b, 6c, . . . Printed matter is cut and folded at a 90° angle to the direction before being discharged. Nipping rollers 6a, 6b,
The pressure applied to the running paper by 6c, ... is affected by the tension setting on the running paper in the paper feed section and the pressure setting of the Wallis on the upper drag roller 3 of the former, so delicate adjustments are often required even during high-speed operation. do.

Reference numeral 22 denotes a housing for a remote adjustment device for nipping rollers according to the present invention, and one housing is attached to the folding frame 1 for each set of folding devices.

The plurality of pairs of nipping rollers 6a, 6b, 6
c,... have the same configuration, and the second
3 shows the structure of one pair of nipping rollers. 6a ₁ and 6a ₂ are a pair of opposing rollers, which are connected to the bearing 13 and the bracket 1.
2 and 14, and is attached to the carriage 19. Also, both rollers 6a ₁ and 6a ₂ are connected to gear 10.
a, 10b, and rotary flexible joints 11a, 11b to be driven by power for driving the printing press. Both sides of the roller 6a ₁ , one of the pair of rollers 6a ₁ and 6a ₂ , are supported by a support arm 14 that is swingably supported by a bracket 15 of the carriage 19 with a support pin 16. The tips of both support arms 14 are connected to air cylinders 18, and when air is supplied to the air cylinders 18, the roller 2a ₂ is moved to the other roller 6a ₁ .
It is becoming more and more popular. Reference numeral 17 denotes a variable stopper, and by adjusting this, an initial gap can be set so that the rollers 6a ₁ and 6a ₂ do not roll into contact when there is no running paper.

As shown in FIGS. 4, 5, and 6, the casing 22 is provided with an electric motor 20 capable of forward and reverse rotation, and a worm shaft 21 connected to the shaft thereof. The worm shaft 21 has a plurality of worm wheels 23a, 23.
b, 23c, ... are in mesh with each other. Each of these worm wheels has a shaft 2 rotatably supported in a housing 22.
4a, 24b, 24c, . . . are rotatably supported via bearings. Each worm wheel 23a, 23b, 23c, . . . is connected to the shaft 2 by an electromagnetic clutch 30a, 30b, 30c, .
4a, 24b, 24c, . . . Regulators 28a, 28b, 28c, . . . are connected to the shafts 24a, 24b, 24c, . . . via couplings 27a, 27b, 27c, .
The regulators 28a, 28b, 28c, . . . are rotated in any direction by the operation of the regulators 28a, 30b, 30c, . Also, the shaft 24a,
24b, 24c, ... are worms 25a, 25b,
25c, . . . , and potentiometers 29a, 29b, 29c, .
These worm wheels 26a, 26b, 26c,
... is provided with a stopper pin 31a, and the upper and lower limits of the potentiometers 29a, 29b, 29c, ... and regulators 28a, 28b, 28c, ... are set by the stopper 31b provided on the housing 22. It's getting old. The pressure on the secondary side of the regulators 28a, 28b, 28c, . . . is indicated by pressure gauges 33a, 33b, 33c, .
The shafts 24a, 24b, 24b, ... are handles 32
a, 32b, 32c, . . . can also be rotated manually.

The number of worm wheels 23a, 23b, 23c, . As shown in FIG. 7, each worm wheel 23a, 23b, 23
Each regulator 2 adjusted by rotation of c,...
The outlet pipes 41 of the nipping rollers 8a, 28b, 28c, . . . are connected to the air cylinders 18 of the respective nipping rollers 6. 39 is each regulator 28a, 28b,
This is an air pressure source connected to the inlet side piping 40 of 28c, .

Reference numeral 35 denotes an operation console, which includes additional buttons 37a and 37 corresponding to the number of nipping rollers mentioned above.
b, 37c, ... and decrease buttons 38a, 38b, 38
c, . . . and meters 36a, 36b, 36c, .

It is necessary to adjust the pressure of the nipping rollers separately for the former edge side and the opening side of the running paper 9.

The adjustment effect will be explained below with reference to FIG.

Now, when the first increase button 37a is pressed, the electric motor 20 starts to rotate forward, the first electromagnetic clutch 30a is activated, the first shaft 24a rotates forward, and the first regulator 28a is activated. The secondary side pressure of the nipping roller 6a is increased, and the pressing force of the first nipping roller 6a is increased. Further, when the first reduction button 38a is pressed, the electric motor 20 starts to rotate in reverse, the first electromagnetic clutch 30a is activated, and the first shaft 24a rotates in the reverse direction, so that the first regulator 28a The secondary side pressure of the nipping roller 6a becomes lower, and the pressing force of the first nipping roller 6a is weakened. At this time, the potentiometer 29a is also rotated forward and backward by the worm 25a and the worm wheel 26a, and the rotation angle at that time is electrically converted and its value is displayed on the meter 36a. The same applies to the adjustment of other nipping rollers.

The operations and operations on the console 35 have been described above, but the operator goes near the folding machine and uses the handles 32a, 32b, 32c, etc. of the housing 22 to check the pressure gauge 3.
You may adjust while looking at 3a, 33b, 33c, .

The present invention is as described above, and one roller 6a ₁
nipping rollers 6a, 6b, 6c, which can press the other roller _6a2 with an air cylinder 18;
In a rotary printing press equipped with..., air cylinders 18 of the nipping rollers 6a, 6b, 6c,...
A plurality of regulators 28 are connected to the shafts 24a, 24b, 24c, .
a, 28b, 28c, . . . and an electromagnetic clutch 3 is provided on each of the shafts 24a, 24b, 24c, .
A worm shaft 2 is fitted with worm wheels 23a, 23b, 23c, . . . via 0a, 30b, 30c, .
1, and each of the electromagnetic clutches 30a, 3
Control buttons 0b, 30c, . . . and forward/reverse control buttons for the electric motor 20 are provided on the console 35 to constitute a remote adjustment device for the nipping rollers in a rotary printing press, so the adjustment of the nipping rollers can be carried out near the machine. This can be done by operating the buttons on the operation console without having to do so, which can reduce the workload of the operator during machine operation.

[Brief explanation of the drawing]

Fig. 1 is a front view of a folding section of a rotary printing press equipped with a device according to the present invention, Fig. 2 is a plan view of a nipping roller, Fig. 3 is a sectional view thereof, and Fig. 4 is a part of the device of the present invention. FIG. 5 is a sectional view taken along the line - in FIG. 4, FIG. 6 is a sectional view of a main part, and FIG. 7 is a diagram illustrating the configuration of the apparatus of the present invention. 1 is a folding frame, 6a, 6b, 6c, . . . are nipping rollers, 18 is an air cylinder, 20 is an electric motor, 21 is a worm shaft, 22 is a housing, 23a,
23b, 24c, ... are worm wheels, 24
a, 24b, 24c, ... are shafts, 28a, 28
b, 28e, ... are regulators, 30a, 30
b, 30c, . . . are electromagnetic clutches, and 35 is an operation console.

Claims (1)

[Claims] 1. In a rotary printing press equipped with nipping rollers 6a, 6b, 6c, etc. in which one roller 6a ₁ can press the other roller 6a ₂ with an air cylinder 18, the nipping rollers 6a, 6b, 6c,
It is connected to the air cylinder 18 of... and the shaft 24a,
Regulators 28a, 28b, 28e, . . . are provided so that the set pressure of the secondary side pressure can be adjusted by rotating the shafts 24b, 24c, . , 30b, 30c, ... are fitted to the worm wheels 23a, 23b, 23c, ... through the worm wheels 23a, 23b, 23.
A worm shaft 21 connected to a reversible electric motor 20 is engaged with the clutches 30a, .
30b, 30c, . . . and a forward/reverse control button for the electric motor 20 are provided on the console 35. A remote control device for nipping rollers in a rotary printing press.