JPS59209868A - Adjustable support carriage for stenciling cylinder - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an adjustable support carriage for an imprinting cylinder.

It is known in rotary printing presses to use imprinting cylinders, which are inserted into the rotary press in their printing zones by cylinder-supporting carriages arranged to roll along guide rails. Therefore, the second part of the prior art carriage is equipped with a U-shaped part and a bearing, which accommodate the cylinder knob which is carried on the upper end of the parallel legs of the U-shaped part. One of the gates has a transmission part, for example a gear, meshing with a drive driven by the main drive of the machine.

Conventional hubs have long proven value in allowing quick replacement of printing cylinders in rotary presses. However, the trade-off is that this type of rotary press presents major mechanical problems when changing the working length of the cylinder, and that a cylinder of a certain length that fits the machine is replaced by a cylinder of a shorter length that fits the machine. It is known that it is necessary to replace the

In this case, the cylinder and associated bearings must be removed and a short cylinder hub fitted with an extension containing a precision support sleeve adapter. At this time, the sleeve adapter will be connected to the carriage bearing and the entire assembly will be reinstalled on the machine.

For those skilled in this field, assembling the sleeve onto the hub of a short cylinder is a rather mechanically complex task, due to the high precision required, especially regarding the rotational mounting of the imprinted cylinder. You will be able to recognize that. This necessitates that the extension sleeve also be machined to high-precision standards.
Therefore, and because of the different lengths of the imprinting cylinders, it is necessary to maintain a series of suitable extension hubs of correspondingly different sizes for each type of cylinder, which significantly increases investment costs. It will increase.

Additionally, it must be kept in mind that even if the support adapter is made with great precision, the tighter the cylinder mount becomes as the length of the cylinder decreases relative to the dimensions of the machine.

One object of the invention is to enable the rapid exchange of imprint cylinders, especially in rotary printing presses, without the need to place the imprint cylinders on extension sleeve adapters and without complex mechanical operations; It directly supports imprinting cylinders of any length, has selectable cylinder positioning, and can be easily connected to a machine drive, all with simple empirical means and extremely simple construction. The object of the present invention is to provide a new cylinder as a support for an imprinting cylinder, which can be achieved via a carriage with a.

The above object is achieved according to the invention by providing the carriage with a guide extending parallel to the longitudinal axis of the imprinting cylinder and housing a bearing support and an imprinting cylinder hub movable along it. .

This cylinder hub does not have any supporting function, but it is primarily used to control the adjustment of the cylinder inside the machine, and also to provide functional support for the cylinder and the drive mechanism that forms an integral part of the main drive of the machine. It is extremely advantageous to provide an extension designed to accommodate connection means serving to connect to.

The present invention will be described in detail below based on the drawings.

As can be seen from the accompanying drawings, this carriage is designed as a whole at 1, but with machine walls 6 and 7.
It includes a frame 2 made to run on wheels 3 and 4 along rails 5 extending perpendicular to the . Wall part 7
is formed with a suitable opening at the rail 5 through which the carriage 1 can pass, while the wall 6 facing it is
is formed to have an opening through which the connecting extension 19 can pass. These will be explained in more detail after C1.

The carriage 1 is provided at its upper end with parallel guides 9 whose structure is, for example, well known in the machine tool industry, and said guides are movable along these parallel guides. It is adapted to accommodate lateral supports 10 and 11 which are made to be moved in the direction of arrow F.

The horizontal supports 10 and 11 each have a standard stand 1.
2 and 13, which have rolling bearings 14 and 15, respectively.

Each imprinting cylinder 16 has a respective /\b17.1
8, the extensions 17a and 18a are collapsed, respectively, and these are respectively rolling bearings 14. , 15 are received in corresponding grooves.

Each extension part 17a, 18a further includes an extension part 1, respectively.
7b, 18b, in which respective extension means 19.20 are housed, and in each case an extension 17b.
, 18b has been thoroughly investigated. Screws 21 and 22 are each used for that purpose.

Although the extension means 19 and 20 do not have a supporting function,
This will be explained in more detail later. The stands 12 and 13, with their respective lateral supports lO and 11, can be moved along parallel guides 9 in the direction indicated by the arrow F, and can also be moved in the direction indicated by the arrow F, with the varying length l of the cylinder 16 and the selected position of the imprinting cylinder. It is possible to adjust the position of the finger. Furthermore, stands 12 and 13
23 and 2, respectively, are drawn merely diagrammatically in Figures 23 and 2.
4 can be included. Each of these dependent extensions can also include a bracket or similar member operatively connected to a respective screw 25, 26, which can be actuated, for example, in the direction of arrow g.

Each threaded shaft or screw 25,26 is manually moved in the usual manner, not shown, in the supports 1°0 and 11 and the stands 12 and 13, respectively.
It can also be connected to a hand wheel, which can be placed at any desired position along the parallel rails 9. of course,
It is also possible to securely lock the transverse parts onto the parallel guides 9 using screws or similar fasteners.

As mentioned above, the extension 17b of the hub 17 and the extension 18b of the hub 18 of the imprinting cylinder 16 are connected to the extension means 19.
and 20. As shown, extensions 19 and 20 do not serve a supporting function. In fact, the extension 19 shown on the left is equipped with a gearwheel 27 at its upper end, which for example has an additional gearwheel 28
In addition, a mesh driven by the main drive system of the machine can be formed to impart the desired rotational movement to the imprinting cylinder 16. To this end, the extension 19 must be attached to the hub 17 by means such as a female screw 21.
and a driving key 29 is provided between the extension 17b of the hub 17 and the corresponding end of the corresponding extension 19.

The extension 18b of the other hub 18 is also clamped to a free extension means 20 which is firmly connected to the hub 18 by means of screws 21 and keys 30. moreover,
The free end of the extension 20 can also be connected to a rotary movement mechanism, indicated at 31, but this mechanism has only the function of axially positioning the cylinder 31, so that the two cylinders are , allowing them to be truly lined up with each other (while remaining laterally aligned) over the entire length of the machine.

As shown, the imprinting cylinder is supported very close to its end, so its bending moment should be much smaller than with conventional support performed at the end of the carriage.

According to the invention, the cylinders 16 can be selectively positioned on the carriage guide 9 and the exchange of any cylinder 16 for another can be done quickly, without complex and lengthy mechanical operations. It can be implemented without This significantly increases the amount that can be produced within a given period of time. Furthermore, the extensions 19 and 20.

The machined parts of these extensions have considerably less wear and tear, since they serve no supporting and sliding functions, but rather serve to transmit rotational linkage to the cylinder 16 and provide lateral alignment.

[Brief explanation of the drawing]

The drawing shows an embodiment of the invention and is a partially sectional external view of a support carriage intended for receiving an imprinting cylinder. 1: Carriage, 9: Guide, 10, 11: Lateral support, 16
: Imprint cylinder. Patent applicant representative Rikichi Kawa

Claims (7)

[Claims] (1) An adjustable support carriage for an imprinting cylinder, wherein the carriage is provided with a guide extending parallel to the longitudinal axis of the imprinting cylinder and housing a bearing support and an imprinting cylinder hub movably therealong. A carriage characterized by: 2. A carriage according to claim 1, wherein the hub of each imprinting cylinder is provided with an elongated end for connection to a transmission means. 3. Carriage according to claim 1 or 2, in which the transmission means are connected to the corresponding hub of the imprint cylinder with the aid of a screw passing therethrough. (4) The carriage according to claim 1 or 2, wherein one of the transmission means has an end portion formed on a gear that meshes with a gear on the driven side. 5. Carriage according to claim 1 or 2, in which one extension means is formed as a means for axially displacing the imprinting cylinder. (6) Each movable structure along the parallel guide has a protrusion depending thereon, to which a threaded shaft is operatively connected, and the threaded shaft is operatively connected to the threaded shaft. Carriage according to claim 1, in which the shaft can be rotationally driven. 7. The carriage of claim 1, wherein each said lateral support has a rigid stop means operative therewith.