JP2726716B2 - Split printing cylinder of rotary printing press - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a divided plate cylinder provided in a printing unit of a rotary printing press, in particular, a drive in a divided plate cylinder, a journal support mechanism and a circumferential and axial direction. The present invention relates to a connection structure with a register device.

[Conventional technology]

FIGS. 4 and 5 show a conventional divided plate cylinder composed of one plate cylinder main body 1 and one shell.

However, one plate cylinder main body and a plurality (2
There is no hitherto known example of a divided plate cylinder having a shell of (.about.3) and journals on both sides of the plate cylinder body supported by a pair of left and right frames so as to be able to rotate and slide in the axial direction.

In FIG. 4 (drive side) and FIG. 5 (operation side), the divided plate cylinder 33 is a plate cylinder body 34 having an outer peripheral surface 34a on which a plate is mounted.
A shell 36 having an outer peripheral surface 36a on which the plate is mounted is rotatably and axially slidably fitted to the small-diameter cylinder portion 35 of the plate cylinder main body having a diameter smaller than the outer peripheral surface 34a, and is axially concentric. They are located close together.

Next, the journal 37 on the drive side and the operation side of the plate cylinder body 34
And 38 are rotatably supported by bearings 9 and 10 on frames 19 and 20, respectively, and can slide axially at fittings 19a and 20a with frames 19 and 20 via bearings 31 and 32, respectively. It is supported as follows.

The driving helical gear 13 meshing with the helical gear 62 fixed to the driving side journal 60 of the blanket cylinder 2 is fixed by the spline 13a in the rotation direction of the journal 37 and slides in the axial direction. It is freely supported.

On the other hand, the shell 36 is connected to the adjustment shaft 40 by a connecting member 39 which is mounted so as to penetrate the side hole 38b of the journal 38 so as not to come into contact with the side hole 38b in the circumferential and axial directions. The adjusting shaft 40 is supported by the inner diameter portion 38a of the journal 38a so as to be rotatable and movable in the axial direction.

Further, the transmission of the helical gear 41 fixed to the journal 38 also serves to drive the shell 36.
Are fitted to the outer diameter of the adjustment shaft 40 so as to be rotatable and movable in the axial direction. An adjustment helical gear 42 meshing with the transmission helical gear 41 is fixed to the adjustment shaft 40 in a rotational direction by a spline 42a and slidably mounted in the axial direction.

Next, the driving helical gear 13 or the adjusting helical gear 42
Bracket 43 fixed to frame 19 or 20, respectively
Adjustment member 47 supported slidably in the axial direction by a key 44
Is rotatably supported via a bearing 45. The adjusting member 47 is screwed with the screw portion 47a and the bracket 43
Is connected to the circumferential register device 17 via a member 48 rotatably supported by the.

A screw shaft 51 is attached to the journal 37 or the inner diameter portions 37a and 40a of the adjustment shaft 40 via bearings 50, respectively. The screw shaft 51 is connected to the axial register 18 through a member 52 screwed with the screw shaft and rotatably supported by a bracket 43.

[Problems to be solved by the invention]

The above-described divided plate cylinder according to the prior art has a problem that two or more plates cannot be mounted.

More recently, it is necessary to edit printed materials, especially newspapers.
There is a demand for a divided plate cylinder to which two plates can be attached.

An object of the present invention is to provide a divided plate cylinder to which four plates can be mounted.

[Means for solving the problem]

A divided plate cylinder to which four plates composed of a plate cylinder body whose journals at both ends are supported by a pair of left and right frames and three shells mounted on the plate cylinder body will be described.

1) Two helical gears respectively provided on the drive-side and operation-side journals of the blanket cylinder, attached to the drive-side journal of the plate cylinder main body and the drive-side and operation-side journals 2) below. The helical gear for driving the plate cylinder body and each shell is also rotated, which also serves for circumferential registration of the plate cylinder body and each shell provided on each of the adjustment shafts in the section.

2) Each shell is provided with an adjusting shaft connected to a coupling member that penetrates a side hole of the drive-side and operation-side journal of the plate cylinder main body at an inner diameter portion of the drive-side journal of the plate cylinder main body, respectively.
In addition, it is provided on the inner diameter portion of the operation side journal so as to be capable of rotating and sliding in the axial direction in a two-axis configuration.

3) Each of the above-mentioned driving means moves the helical gear in the axial direction through a screwing member provided coaxially with this gear or on another shaft,
A device for registering the plate cylinder body and each shell in the circumferential direction is provided.

4) a bearing that supports the drive-side journal of the plate cylinder main body, a member having a threaded portion on the outer peripheral surface fixed to the outer adjustment shaft on the operation frame side, an adjustment shaft on the drive frame side, and an inner adjustment shaft on the operation frame side. A device is provided for moving the plate cylinder body and each shell in the axial direction by moving the plate cylinder body and the shell in the axial direction via the screwing members.

FIG. 3 shows a combination of a plate cylinder main body and a plurality of (two to three) shells in a divided plate cylinder. In any case, the above structure can be easily applied.

(Operation)

1) The plate cylinder body and each shell, which are strongly and stably supported, are driven synchronously while maintaining the adjusted circumferential and axial registration.

2) The circumferential and axial registration of the plates mounted on the plate cylinder body and each shell can be performed individually during operation and during stoppage.

3) Four short width plates can be mounted.

[Embodiment] FIGS. 1 and 2 show a divided plate cylinder to which four plates according to the present invention can be mounted.

The divided plate cylinder 73 pivots and pivots on a plate cylinder body 74 having an outer peripheral surface 71 on which a plate is mounted, and small-diameter cylinder portions 75 (75a and 75b) on both sides of the plate cylinder main body having a smaller diameter than the outer peripheral surface 71. (Three) shells 76 (76a, 76b,
76c). Each of the shells 76 (76a, 76b, 76c) has an outer peripheral surface 72 (72a, 72b, 72c) on which the plate is mounted, and is disposed concentrically close to the axial direction.

Next, journals 77 and 78 on the drive side and the operation side of the plate cylinder main body 74 that rotate via a power transmission path via a gear 63 meshing with a driving gear (not shown)
And 20 are rotatably supported by bearings 9 and 10 and are supported by bearings 31 and 32 at fitting portions 19a and 20a with frames 19 and 20 so as to be able to slide in the axial direction.

Next, the gear 62 fixedly provided on the drive-side journal 60 of the blanket cylinder 2 and the gear 63 provided movably in the axial direction include:
Gears 66 provided on the adjustment shaft 80a so as to be movable in the axial direction
And a gear 67 also provided on the adjustment shaft 80a so as to be axially movable.
The gear 64 fixedly provided on the operation side journal 61 of the blanket cylinder 2 meshes with the gear 68 provided on the inner adjustment shaft 80c so as to be movable in the axial direction. The gear 65, which is freely movable in the direction,
And the fixed gear 69.

On the other hand, Ciel 76 has side holes 70 (70a, 70) of journals 77 and 78.
b and 70c), the connecting members 79 mounted therethrough so that they do not hit when registering in the circumferential and axial directions.
(79a, 79b and 79c) at each adjustment shaft 80 (80a,
80b and 80c). The adjusting shaft 80a and the outer adjusting shaft 80b are attached to the inner diameter of the journals 77 and 78, and the inner adjusting shaft 8a.
Reference numeral 0c is attached to the inner diameter portion of the outer adjustment shaft 80b so as to be rotatable and movable in the axial direction.

Further, a gear 85 screwed to a screw portion on the outer peripheral surface of a member 94 fixed to the bearing 31 and a member 86 having a screw portion on the outer peripheral surface that is rotatably restrained in the axial direction by the outer adjustment shaft 80b. The gear 87 to be screwed is lightly in contact with the stoppers 88 and 89 attached to the frames 19 and 20, respectively, so as not to move in the axial direction.

Next, connection with the drive side circumferential and axial register devices is as follows. In FIG. 2, the driving helical gear 66
Is mounted slidably in the axial direction with a key 44 on a bracket 43 fixed to the frame 19, and has a built-in bearing 45,
It is connected to an adjusting member 47 having a screw portion 47a. The adjustment member 47 is connected to the circumferential register 17 via a member 48 screwed with the rotation member and rotatably supported by the bracket 43.

The drive helical gear 67 fixed to the journal 77 is
The helical gear 63 is connected to a member 90 that can move in the axial direction of the journal 60 by a rod 96 that penetrates through the fake hole 62a of the helical gear 62 and is fixed to the helical gear 63. Further members 90
A screw shaft 92 is attached to the inner diameter portion of the member through a bearing 91, and the screw shaft 92 is screwed with a member 93. Therefore, when the members 48 and 93 are respectively rotated by the circumferential register 17, the rotation of the member 93 is caused by the screw shaft 92 screwed to the members.
Is axially moved, and a member 90 connected to the screw shaft 92 via a thrust bearing is connected to the gear 63 via a rod 96 and moves integrally. At this time, even if the member 90 rotates (the gear 63 rotates), the rotation is not transmitted to the screw shaft 92 by the thrust bearing portion, and the screw shaft 92 does not rotate. However, the axial movement of the screw shaft 92 moves the member 90, the bar 96 and the gear 63 via the thrust bearing. The gear 63 is fitted to the blanket cylinder 2 by a spline, transmits torque to the planket cylinder 2, and does not transmit motion to the blanket cylinder 2 in the axial direction. Therefore, the register device 17
When the member 93 rotates at, the gear 63 moves in the axial direction irrespective of the blanket cylinder, and the gear 63 and the mating gear 67 move in the axial direction even if either of them moves in the axial direction. Rotate in the direction. If the gear 63 moves in the axial direction, the gear 67 and the plate cylinder body 74 on the side where the load is lighter than the blanket cylinder 2 rotate in the circumferential direction, and registration in the circumferential direction can be performed. Also member 48
Rotation, the screw shaft 51 screwed to this is moved in the axial direction,
The axial movement of the gear 66 via the screw shaft 51 cannot rotate the gear 62 of the blanket journal 60 on the other side meshing with the gear 66, and conversely rotates the lightly loaded gear 66, thereby causing the gear 66 to rotate. The rotation can be registered in the circumferential direction of the shell 76a via the adjustment shaft 80a and the pin 77a.

Next, the bearing 31 supporting the journal 77 moves the member 94 in the axial direction when the gear 97 is rotated by the register device 18 in the axial direction, so that the journal 77 also slides in the axial direction. Also adjustment axis
As shown in FIG. 2, a screw shaft 51 is mounted on the inner diameter portion of the shaft 80a via a bearing 50, and a member 52 screwed to the screw shaft 51 and rotatably supported by a bracket 43 is supported by a shaft. When rotated by the direction register device 18, the screw shaft 51 moves in the axial direction, so that the adjustment shaft 80a also moves in the axial direction. Therefore, registration of the plate cylinder body 74 and the shell 76a in the axial direction can be performed.

The registration in the circumferential direction and the axial direction on the operation side is performed in the same manner, but the registration in the axial direction of the outer adjustment shaft 80b is performed by the member 86 attached to the shaft 80b.
By rotating the gear 97 at 8, it is performed by moving in the axial direction. Otherwise, the connection is the same as the drive side.

〔The invention's effect〕

A plate cylinder main body on which a plate is mounted, and a plurality of shells which are rotatably and axially slidably fitted to left and right small-diameter body portions of the plate cylinder main body and mount the plate are concentrically arranged in a line. A divided plate cylinder capable of mounting a plurality of plates in which journals on both sides of the plate cylinder main body are supported by a pair of left and right frames of a rotary printing press so as to be rotatable and slidable in the axial direction, respectively. A frame for supporting the one journal and an adjustment shaft which is rotatably and axially slidably inserted into an inner diameter portion of the one journal and is connected to one shell of the plurality of shells. Inner and outer 2 which extend outwardly, are inserted into the inner diameter portion of the other journal of the plate cylinder body so as to be rotatable and slidable in the axial direction, and are respectively connected to the remaining two shells of the plurality of shells. Ke of The alignment shaft is extended to the outside of the frame supporting the other journal, and the one journal of the plate cylinder main body and the adjustment shaft provided on the inner diameter portion of the one journal are connected to the one journal side. A drive helical gear driven by two helical gears provided on one journal of a certain blanket cylinder is attached, and the two adjustment shafts provided on the inner diameter of the other journal are provided with: Driving helical gears respectively driven by two helical gears provided on the other journal of the blanket cylinder on the other journal side are attached,
A circumferential registration device is connected to each of these drive gears, and a bearing for supporting one journal of the plate cylinder main body, and two inner and outer gears provided on the inner diameter portion of the other journal of the plate cylinder main body. Among the outer adjustment shaft, the inner adjustment shaft provided at the inner diameter of the one journal, and the inner adjustment shaft provided at the inner and outer two adjustment shafts provided at the inner diameter of the other journal. By connecting the direction registering devices, the following effects are obtained.

1) By using a divided plate cylinder consisting of a plate cylinder main body and three shells, four plates can be mounted, so that printed matter can be edited freely.

2) Since the plate cylinder main body and the plurality of shells are driven by the journals on both sides of the blanket cylinder, the plate cylinder main body and each shell are driven synchronously while maintaining the registered register.

3) By connecting the plate cylinder main body and each shell to the circumferential and axial registering devices, the circumferential registration and the axial registration of the plate cylinder main body and each shell are performed independently and stopped during operation. It can be performed finely regardless of the inside.

[Brief description of the drawings]

FIG. 1 shows an embodiment of a divided plate cylinder according to the present invention. FIG. 1 (a) is a cutaway side view, and FIG. 1 (b) is A in FIG. 1 (a).
FIG. 2 is a cutaway side view of the driving side of the split cylinder,
3 (a) to 3 (g) show a combination of a plate cylinder main body and a plurality of shells in the divided plate cylinder shown in FIG. 1. FIG. 4 is a cutaway side view of a driving side of a conventional divided plate cylinder. FIG. 5 shows the fourth
It is a fracture | rupture side view of the operation side of the figure. 2 ... Blanket cylinder, 17 ... Registering device in circumferential direction 18 ... Registering device in axial direction 73 ... Division plate cylinder, 74 ... Plate cylinder body 76 (76a, 76b, 76c) ... Ciel

Claims (1)

(57) [Claims] 1. A plate cylinder body on which a plate is mounted, and a plurality of shells which are rotatably and axially slidably fitted to left and right small-diameter body portions of the plate cylinder body and which mount the plate, are concentric. A divided plate cylinder capable of mounting a plurality of plates in which journals on both sides of the plate cylinder main body are supported by a pair of left and right frames of a rotary printing press so as to be able to rotate and slide in the axial direction, respectively. One of the journals of the plate cylinder main body and an adjustment shaft inserted into the inner diameter portion of the one journal so as to be rotatable and slidable in the axial direction and connected to one shell of the plurality of shells. Extending outside the frame supporting the journal of the plate cylinder body, rotatably and axially slidably inserted into the inner diameter portion of the other journal of the plate cylinder body, and inserted into the remaining two shells of the plurality of shells. Each connected The two inner and outer adjusting shafts are extended to the outside of the frame supporting the other journal, and one of the journals of the plate cylinder main body and the adjusting shaft provided on the inner diameter portion of the one journal are connected to the two adjusting shafts. Two helical gears driven by two helical gears provided on one journal of the blanket cylinder on one journal side are attached, and the two helical gears provided on the inner diameter of the other journal are mounted. 2 provided on the other journal of the blanket cylinder on the other journal side on the adjustment shaft of
Driving helical gears, each driven by a helical gear, are attached to each of the driving gears, and a circumferential register is connected to each of the driving gears. Further, a bearing for supporting one of the journals of the plate cylinder body. The outer adjustment shaft of the inner and outer two provided on the inner diameter of the other journal of the plate cylinder main body, the adjustment shaft provided on the inner diameter of the one journal, and the inner adjustment shaft provided on the inner diameter of the other journal. Inside and outside 2
A split plate cylinder for a rotary printing press, wherein an axial registering device is connected to each of the inner adjusting shafts of the adjusting shafts.