JPS58126160A - Supply of oil to bearing of printing cylinder of rotary press - Google Patents

Abstract

PURPOSE:To exactly supply oil to the whole circumference of an eccentric bearing without delay by interlocking the oil supply operation of an oil supply pump with the cylinder drawing operation of the eccentric bearing for attaching or detaching the printing cylinder. CONSTITUTION:In case where the press base is stopped due to failure of paper supply, an air cylinder connected to an eccentric bearing is driven in an interlocking manner with the stopping operation, and a press cylinder 10 is drawn in relation to an intaglio cylinder. In this case, a signal is sent out slightly earlier than the start of the cylinder drawing, an oil-pressure pump is driven and oil supply to the aperture 33 between the eccentric bearing 24 and a bush 23 is started and continued during the cylinder drawing period. By a signal sent out slightly later than the ending of the cylinder drawing operation, the oil- pressure pump is stopped and oil supply is stopped.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides a bearing oil supply method for effectively supplying lubricating oil to an eccentric bearing that pivotally supports a printing cylinder of a rotary printing press.

The rotary printing press is equipped with a printing shoe and a rubber stamp that applies printing pressure at the time of printing, and a rubber that transfers Takaji's IGM.
Among these, the rubber 'a' or impression cylinder is pivoted and rotated at the start and end of the eccentric printing process, so that the printing plate is attached to the other party 111. The structure is designed to introduce the impression of pressure by inserting the sea bream into the sea bream and holding a sea bream selection meeting.

The eccentric bearing has an outer circumference supported by a frame 5,
The inner periphery supports the - end shaft, and lubricating oil is constantly supplied to the inner and outer surfaces of the bearing, but there have been many problems with this provision of bearings.

In other words, the eccentric bearing does not rotate once, but its opening angle varies by at most 30 degrees to 50 degrees, so the oil does not flow around, and the oil does not reach the joint, causing a hole in the joint and causing the wheel holder to be damaged. I was unable to move at all due to lack of refueling and overheating. There are many cases where the following happens in 1-IIA. However, if the I4 gap at the fitting part is made large, problems such as snails will occur, so it is necessary to reduce the possible gap PIIIll! However, as a result, it was difficult to solve the problem of insufficient refueling, and even if refueling was carried out under high pressure, no significant effect could be expected.

This book ** represents the above points Km, and the oil supply operation of the oil supply pump is linked to the cylinder removal operation of the biased bearing for attaching and removing the print case, and one smooth bearing bearing is connected after the cylinder removal III. By taking advantage of the fact that the clearance between the outer circumferential surface of the bearing and its shaft support hole returns to the opposing position at 1/2, and by selectively lubricating the bearing, it is possible to lubricate the scrap metal of the single-core bearing. This is to provide a method of lubricating bearings for comb nine-wheel printing and horizontal K-kake printing to ensure smooth operation. Below, details of the actual market of the present invention will be explained based on the drawings.
To clarify.

The gt diagram shows the bearing lubrication method according to the present invention. fi11 Rotary mmtao * Main side view, Figure 2 is the same (wt leakage view of the normal axis branch, 3rd warm is the same (printing and piercing IIl! PK: 11-Keru a! Rope and! f
This is a diagram showing how much money there is in relation to hawking. In the diagram, mark -
The machine 1 is equipped with a paper feeding device 2, a printing device 3) and a paper device 4, and the paper feeding device 2 has IIs! It is equipped with a paper stacking table 8 which gives an advantage to the paper II and # according to the reduction in paper 5 due to paper stacking and paper feeding. Mark @ 俟OK sK, difference y from paper feeder 2
The swing S is fed onto y and the paper S is replaced with the nail of Gido @ 8 by looking at it.
It! IIK is provided with a pressure P@10 (described later) that rotates in the direction indicated by the arrow IIIK. Jin's! El
l1mK is the rubber 11 that rotates once in the direction indicated by the mark ■Km.
11 is in contact with the rubber cylinder 11, and the rubber cylinder 11 is in contact with the curved surface K [4@ dry) [@12], and each dry version 1112 has the clothes attached to the horse surface. A four-color inking device is provided for each of the ink fountains 13, etc., which supply nine colors of ink, respectively. and,
It is printed on each plate using four colors of ink.
1, and furthermore, the stomach of the rubber 11 and the pressure 1110 is picked up by a claw of the pressure 11111G, and the paper sK@ being conveyed is copied and the dry offset stamp lIl is deformed.

Weight, pressure -10, circumference? A concave 11 [11114] attached to the IK concave [-III and n@ in the direction shown by group C in the figure is paired with the concave 11 [11114]. The inner interlocking row A6 is in contact with the wiping roller 18, which is immersed in the cleaning liquid in the wiping tank IT. Of the ink transferred to the entire surface of the intaglio plate by the ink forming roller 16, excess ink other than the concave portions is removed by the wiping roller 1s, and the image 1 of the ink remaining in the concave portions is transferred to the pressure 1110 and the intaglio cylinder. I was looked at with the nail of pressure IHO between 14 and was treated like a paper! In addition, the press #410 has a sprocket 11 (on one side) coaxial with the sprocket 20 on one end of which the paper ejection chain 11 is stretched.
1'! (not shown) are brought into contact with each other, and the printed paper 5 is transferred to the claw of the paper discharge chain 711 by the cooperation of the paper collectors. A pair of front and rear paper stacking tables 20 are placed below the end of the paper ejection chain 11, and stack papers S that are released from the claws of the paper ejection chain 11 and fall. Kll was constructed so that the other one-loading platform 2/KW Gikoshi road port could be switched to 1/&.

As shown above (・1 is made 9 The pressure a10 of the printing machine 1
>! In order to explain the oil supply to the bearing of the pressure 11110, the impression cylinder 1G prints on four sheets of paper 5 during one revolution. So-called 4 times -, as shown in Fig.
b, and the starting end of the effective surface 1Oa in the rotation direction is paper!
119411, the paper 5 is transferred to the mouth and the paper S is wound around the effective surface 1ea. 9, concave [11114'% entire circumference tfilt11 equally divided and arranged alternately, effective surface 141 and ineffective surface 1 on the 94 side
4′b and ->夛, -@S is formed on the effective surface 14@ and on the effective surface 1i10a opposite thereto @SK KOIi
The image will be transferred and printed or applied.
LCh&.

The bearing structure of the impression cylinder 100 will be explained based on FIG.
is rotatably supported.

The single core bearing 24 has a tapered outer periphery 1124m which is fitted with the bushing 23, an axial center F, an inner periphery III 24b where the roller bearing 2S is fitted, and an axial center P1, as shown by the symbol t in the diagram. The impression cylinder 10 is axially supported by an end shaft 2 and a rotor bearing 2S, and its movement in the axial direction is restricted by a shaft 2F. - One end of the center bearing 24 and the lid body 28 integrated therewith are pivoted by a pivot 2I, and the other end of the four-piece sO is connected to an air cylinder (not shown). . Then, by making this air cylinder telescopic, the eccentric bearing No. 4 #ll1llit
The intaglio surface on the impression cylinder 10 points Entaka 1114 is phoenixed and is called a rope insert.

It is configured so that only S is removed. Volume 311 (
a) , (b) #'i This shows the soft soda being placed in the cylinder and being printed. *S
+ indicates deceased, front figure ~) is ineffective l111114b
, that is, between the printed II4 and the paper to be stamped.

14 and 1 are shown in contact with each other. Further 11I
(→ indicates that the print was removed before printing started or after printing was completed.)
410, the effective surfaces 10m and 14m of 14 are opposite to each other, and a circular shape Il is shown.

In the eccentric b bearing 24 that pivotally supports the pressure 1111 configured in this way, the so-called insertion and rounding II- of the body removal are made into a circle IK.
T! A lubricating oil supply device is provided.

In other words, a single core bearing! 4 outer peripheral surface 24& and bushing 13
There is a pair of 609 rings between the inner circumferential surface and 0.

It is sealed with 32 and is for Jihui small bottle refueling! ! 4-33 is formed, and in Fig. 3, ζO
Moldy little 'M! +133- shown enlarged.

During this time, l18s is provided on the eccentric bearing 24 and the l18s is
14, eccentric bearing 24 1lKsI-ite oil supply path 34K
m! Connect the oil supply pump (ff
ill-tzu) Kl! The gap 3SK is supplied with oil by the operation of the oil supply pump. In general, there is an electric enclosure for a switch that operates the oil pump, and an assembly for attaching and detaching the compression 10.
The electric path of the switch that connects the operation to I to Wlt is connected via a timer and is emitted before the cylinder and air cylinder operate in the direction of the pricking pin. It is constructed so that the poy-boo is stopped by a signal issued 9 minutes after the cutting process is completed.

In other words, the gap s8 is configured to be refueled a little before the opening, continued to be supplied until a little after the opening, and then stopped at the end of the opening.

In the printing press configured as described above, the good paper i fed from the paper feeder 1 onto the differential IIT is given a pressure of 1!
The sheet is wrapped around the circumferential surface of the blank and conveyed, and when it passes between the impression cylinder 10 and the blanket cylinder 11, a four-color O dry offset mark is stamped on the teeth. Nine, pressure 1110 and intaglio cylinder 14!
%I is transferred and IIK three-color printing is carried out, and both prints are completed and the good paper S is passed from the claw of the impression cylinder 10 to the paper ejection chain 1.
After being conveyed in the mouths of No. 9, the sheets are stacked alternately on one of the paper stacking tables 20 until it is full. and,
When the machine stops due to printing being completed or a paper feeding failure occurs, the unbalanced J6 bearing 24KIi operates in conjunction with the stop operation, and the impression cylinder 10 is recessed 1 [@14 Printed against. In this case, a signal is generated slightly earlier than the needle opening pin, and the hydraulic pump is activated, and the oil supply to the gap @33 between the eccentric bearing 24 and the bushing 2S is opened. The hydraulic pump is stopped, and the oil supply is stopped.

To explain the relationship between this refueling timing and N4pJI33 in terms of the third garden, Figure (a) shows a light-filling shape 1, in which the effective surfaces lea m 14 & on both sides 10. Since the eccentric bearing 24 of pressure 111101III is pressed by the printing pressure, the bushing 23 on the frame side
9, and the gap 33 is located at the lower part 1.
It is formed on the ljI 14 side. The ineffective surfaces 10b and 14b are in contact with each other and no impression pressure is applied to them, but the stone is supported by its own weight 11114, which has a pressure of $10. Therefore, eccentric bearing 24-
The gap ss is at the center of #1 of Bush 23.
Furthermore, in Figure (C), 111
1110.14 has been deleted and is being viewed once, so pressure @
Due to its own weight of 10〉 Eccentric bearing 24 or bush! It is located eccentrically below No. 3, and the gap No. 33 is located eccentrically. In this way, the position of the gap 330 changes over the entire M circumference of the eccentric bearing 24 during the KW process from Figure (a) to the time it is completed. . On the other hand, the oil supply method KTh according to the present invention
Since the structure is such that refueling can be continued from a little before the start of the puncture process to a little after the completion of the puncture process, (IIJ
Lubricating can be performed over almost the entire circumference of the bearing 24. Since the operation of picking out the shrimp is generally repeated several times to several dozen times a day, refueling is always performed for each shrimp, so that there is no possibility of insufficient refueling or refueling being biased in one direction.

1ksP1 The present invention is designed to prevent damage to the printing cylinders of all rotary printing presses, but is particularly applicable to printing cylinders such as the impression cylinders of 94-fold intaglio printing presses, where the printing pressure is large (their own weight is heavy). The effect is particularly noticeable in cases where First, refueling is started at a certain timing before the cylinder is removed, and then refueling is carried out at a certain timing after the cylinder removal. Because it is electric,
The WI4 machine command's rounded safety device is used to run a timer to run the oil pump, and when the printing pressure is large, such as in an intaglio printing press, lubrication is performed directly by the signal from the safety device. The same effect can be achieved even if you let IIK Ronyu tII be used for a certain period of time! You can get 1M.

As is clear from the above description, according to the present invention, in the method for lubricating a bearing of a printing cylinder in a rotary printing press, a mark 11 is provided.
111 The lubricating operation of the oil supply pump is linked to the piercing operation of the eccentric bearing for attaching and detaching, and the gap between the outer horse surface of the bearing and its shaft support hole, which is biased before and after the piercing process, is at opposite positions. By forcibly lubricating the eccentric bearing, the eccentric bearing is always lubricated every time it is punctured and removed, and since the oil is distributed evenly over the entire circumference of the eccentric bearing, there is no possibility of insufficient lubrication. This prevents damage to the bearing by preventing locking or expansion at the joint, and there is no risk that the bearing will become unable to rotate.
Considering the lack of oil supply, the gap between the mating parts has been increased (there is no need to do so, so there are no printing problems such as scratches, and the 8th prize of printed matter has been improved!).

[Brief explanation of the drawing]

StS is an overview of a rounded dry offset w-loaded rotary printing press in order to explain the method of holding the printing cylinder in a roller plate printing press according to the present invention. Similarly, FIG. 3 shows the relationship mm+m between the impression cylinder and the intaglio cylinder during cylinder insertion printing and cylinder removal. 1...Printing machine, IQ--impression cylinder, 14...intaglio cylinder, 23...button, 24...eccentric bearing,
33... Gap. Applicant: Gypsum Printing Machine Co., Ltd. Kinsha representative: Masaki Yamakawa (#1 or 14)

Claims (1)

[Claims] At the signal before the eccentric bearing for printing cylinder loading starts to move in the direction of cylinder removal, the oil supply pump is started to supply oil to the eccentric bearing, and at the signal after the eccentric bearing has finished moving in the direction of cylinder removal. A method of lubricating the ring of the printing cylinder in a printing cylinder by stopping the lubricating pump and waiting to finish lubricating the uneven bearing.