JPS58163815A - Work roll supporting device - Google Patents

Abstract

PURPOSE:To make it possible to place a device which supports the inner ring of a bearing of a top roll eccentrically in the uppermost limit in a narrow space within a frame between the top and bottom roll. CONSTITUTION:A first and second bearing portion 2, 3 are formed on the axial end of a work roll 1. Said first bearing portion 2 is fitted onto a first bearing 5 whose outer ring is fixed to a frame 4. A bearing box 7 is guided vertically and movably along said frame 4 and a driven slope 9 of a swash plate cam mechanism is integrated with said bearing box 7. A prime driving member 10 engaged with the driven slope 9 is mounted horizontally slidably on said frame 4, while the second bearing portion 3 is fitted onto a second bearing 6 within the bearing box 7 and the prime driving member 10 is slided so as to deviate upwardly the inner ring of the first bearing 5.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement of a top processing roll support device of a rotary processing machine for processing sheet materials such as paperboard, corrugated paper, plastic sheets, metal laminate sheets, etc.

The top roll of a rotary sheet processing machine such as a rotary die cutter is supported by the machine frame via a roll bearing.
There was a problem in that an upward load was applied to the top roll during processing, and the inner ring of the roll bearing escaped upward in response to the load. One way to deal with this problem is to change the height of the blade in consideration of top roll escape.

However, since the load changes depending on the direction of the blade shape, adjusting the height of the blade to match the direction of the blade Q is a troublesome process, and it is especially difficult to adjust the height to compensate for the cross blindness of the blade. Therefore, the present applicant first proposed a top roll support device in which the roll bearing is eccentrically upwardly eccentric to the maximum limit (Japanese Unexamined Patent Publication No. 55-3'i'262, No. 55-103115,
No. 56-105114), but that device lifts the top row k by pressing a rotating body against the shaft end of the top roll, and a rotating ring is installed around the lower part of the shaft end of the top roll. Space was needed.

However, since the space between the top roll and bottom roll inside the machine frame is extremely narrow, it was not always easy to secure that space.

An object of the present invention is to provide a device for supporting the inner ring of a top roll bearing by eccentrically moving it upward as much as possible, which can be easily installed in a narrow space within a machine frame between a top roll and a bottom roll. There is a particular thing.

In order to achieve the above object, the device of the present invention includes a second bearing section provided at the shaft end of the top roll, a first bearing fixed to the machine frame to support the first bearing section, and a second bearing section provided at the shaft end of the top roll; The swash plate cam mechanism consists of a bearing box that can be vertically raised and lowered, a swash plate cam mechanism that vertically raises and lowers the bearing box, and a second bearing that is placed in the bearing box and supports a second bearing part. By lifting the second bearing part through the second bearing part, the inner ring of the second bearing can be eccentrically moved to the maximum extent possible.

The apparatus of the present invention will be explained based on the embodiments shown in the drawings.

I will clarify. As shown in FIGS. 1 to 3, the first and second bearings s2.3 are provided at the stepped end of the top roll 1 of the rotary die cutter, and the second bearing 3 is attached to the machine frame 4. The outer ring is fitted into the inner ring of the fixed first roll bearing 5, and the second bearing part 3 is fitted into the inner ring of the second roll bearing 6.

The outer ring of the Denirol bearing 6 is fitted into the receiving box 11, and the cover 8 is attached between the receiving box and the machine frame 4.

A guide stand 1 with a swash plate slightly lowered inward from both ends of the bottom of a bearing box 7 whose lower half is semicircular and whose lower half is rectangular.
1111 and supports the movable body 10.10 so that it can slide horizontally. A screw hole passing through the driving body 10.10° horizontally is provided, and a bolt that engages with the screw hole is provided. Reto 12.12 “Pass. Pol) 12.1
2 is rotatably mounted on a guide stand 11.11' and formed into a square shaft 15.15'' which is the end of a bolt that projects outward from the guide stand.

Claw-shaped guide pieces 13.13 along both parallel sides of the bearing box 7
The bearing box 7 is fixed to the machine frame 4 to prevent movement of the bearing box 7 in directions other than the vertical direction.

Since the wedge-shaped driving body 10.10° and the guide tables 11, 11' that guide it are relatively small, they can easily fit into the narrow triangular space between the top roll l and the bottom roll 20 in the machine frame 4. can be installed.

Note that one bolt may be passed through the left and right moving bodies without dividing the bolt into left and right parts, and the direction of the screw thread of the bolt may be reversed.

Next, the operation of the apparatus of the present invention will be explained.

Insert a knob or wrench into the square shaft unit 5.15 of the two poles) 12.12', rotate the bolt, and connect the driving body 10.1.
0° is moved horizontally inward along the sliding groove of the guide table 11.11°. As the driving body 10.10° or the driven slope 9.9" of the bearing housing 7 moves inward, a strong wedge action is generated that lifts up the bearing housing 7. When the wedge action is applied symmetrically from both sides, the bearing Box 7 is guide piece 13.13
“Lift vertically along.

The second roll bearing 6 and the second bearing part 3 together with the bearing box 7
Then, the top roll 1 is lifted.

When the top roll 1 is lifted, the second bearing part is reduced. This eccentric state where there is no choice but to escape is the limit, and the top roll 1 cannot be lifted any further. After lifting the top roll 1 to this upper limit, the lock nut 14 is tightened to prevent the bolt 12 from being reversed. It goes without saying that the same operation is performed for the opposite shaft end.

The top roll 1 is lifted to the upper limit, and the inner ring of the first roll bearing 5 is eccentrically upward to the maximum limit, so that even if a load is applied to lift the top roll 1 during processing, the top roll 1 will no longer be lifted. , always maintain a fixed position.

Therefore, there is no need to change the blade shape depending on the direction, and the height of the blade shapes can all be made the same. During the break,
First, loosen lock nut 14.14 and move it to the side.
The upward pressure on the inner ring of the first roll bearing 5 is released.

As mentioned above, since the device of the present invention is small, it can be easily installed in the narrow space between the top roll and bottom roll in the machine frame, and the top roll can be easily installed by simply turning a handle or spanner. The inner ring of the bearing can be eccentrically moved upward to the maximum extent possible, and the position of the top roll can be maintained constant during processing.

[Brief explanation of the drawing]

FIG. 1 is an elevational view showing a main part of a rotary die cutter equipped with a device according to an embodiment of the present invention in cross section, FIG. 2 is a side view showing the shaft end of the rotary die cutter shown in FIG. 2 is an enlarged perspective view of the moving body and guide platform of FIG. 1. FIG. 1 Roll 2: Second bearing part 3: Second bearing part 4 Second machine frame 5: First bearing (roll bearing) 6: Sugar second bearing (roll bearing) 7: Bearing box 9: Driven slope 10: Prime mover 11: Information desk 12: Bolt applicant Masaharu Matsuo

Claims (1)

[Claims] 1) A first and second bearing section is provided at the shaft end of the processing roll,
The first bearing part is supported by a first bearing having an outer ring fixed to a machine frame, a bearing box is guided to the machine frame so as to be vertically movable, and a driven slope of a swash plate cam mechanism is integrally provided in the bearing box. , a driving body that engages with the driven slope is horizontally slidably provided on the machine frame, the second bearing portion is supported by a second bearing in the bearing box, and the driving body is slid to allow the driving body to slide horizontally. A processing roll support device characterized in that the inner ring of one bearing is eccentrically upward. 2) Slopes descending toward the center are formed on both sides of the bottom of the bearing box, and a wedge-shaped driving body that engages with each slope is horizontally slidably supported on a guide stand fixed to the machine frame. Claim 1, characterized in that an outer end of a bolt that passes through the driving body and is threadedly engaged with the driving body is bearing on the guide stand, and the bolt is rotated to cause the driving body to slide. The processing roll support device described.