JPH0371994B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Technical Field The present invention relates to a waste plate winding device, and more specifically,
A waste printing roll that allows the operator to dispose of used base paper (hereinafter referred to as waste printing) attached to the printing drum or printing screen of a rotary printing press without directly touching it. The invention relates to a collecting device. BACKGROUND TECHNOLOGY Conventionally, as shown in FIG. 1, a device for discarding base paper without the operator touching it directly in a rotary type top copy printing machine etc. has been used to dispose of base paper 1 peeled off from a printing drum. A paper that is inserted between the gears 2 and 3 and sent into the waste box 4, or a printing base paper 6 whose tip is reinforced with a cardboard 5 as shown in Figure 2a, is used and is used when discarded. , the winding arms 7, 7 are fed out to both sides of the cardboard 5 as shown by arrow _A1 , and these winding arms 7,
Insert both sides of the cardboard 5 into the notches 7a, 7a provided in the winding arms 7, 7, and move the winding arms 7, 7 along the arrow _2.
It is generally known that printing paper 6 is rotated in the direction shown in FIG.

By the way, in the apparatus shown in FIG. 1, the base paper 1 is fed into the waste box 4 as it is without being subjected to any processing such as winding, so the number of sheets of the base paper 1 stored is relatively small, and moreover, when the waste box 4 is removed, There was a problem that the base paper 1 was pushed out from the inlet, staining the operator's hands and clothes.

Furthermore, in the apparatus shown in FIG. 2, the used printing base paper 6 is rolled up using the cardboard 5 as a core and then dropped into the waste box 8. This increases the number of sheets that can be stored in the printer, but requires a special printing base paper to which the cardboard 5 is attached, and also requires a mechanism for feeding and rotating the winding arms 7, 7, making the device complicated. It was hot. Purpose of the Invention The present invention has been made to solve the above-mentioned problems in conventional waste plate processing devices, and its purpose is to provide at least four rollers arranged so that their rotational axes are located approximately on the circumference. By stretching a belt between them so as to surround the core of the waste plate and rotatingly supporting the core with these belts, the waste plate is caught between the core and the belt and wound around the core. To provide a waste plate winding device capable of increasing the number of waste plate rolls per core, and simplifying handling including disposal without getting hands dirty during waste plate processing. SUMMARY OF THE INVENTION To summarize the present invention, the leading edge of a used waste plate mounted on a printing drum or a printing screen is pressed against each other and fed between rotating feed rollers, and the waste plate is sent behind the feed roller. The waste plate winding device is configured to wind the waste plate onto a positioned winding core in synchronization with the feed speed of the waste plate, and the waste plate is wound on the feed roller from immediately after one of the feed rollers to immediately after the other of the feed rollers. At least four rollers arranged around the outside of the core, and two or more rollers with a gap between two rollers located immediately after the feed roller, each of which is wrapped around the core. and an elastic belt that is in contact with the waste plate wound up on the belt, and these belts elastically support the winding core in rotation so that each of the rollers is driven in synchronization with the feeding speed of the waste plate. This is a waste plate winding device characterized by the following. Embodiments Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

FIG. 3 shows an embodiment in which the present invention is applied to a rotary type top copy printing machine.

In FIG. 3, 11 is a printing section, and 12 is a waste plate winding device according to the present invention.

The printing section 11 includes rotating drums 13 and 14, a screen 15 stretched between the rotating drums 13 and 14, a clamp device 17 for attaching the base paper 16 onto the screen 15, and a screen 15 on the side of the rotating drum 14. It consists of a pressure roller 18, etc. that presses against the

In the printing section 11, as is well known, arrow Ar ₁
the pressure roller 18 rotating in the direction;
A base paper 16 attached by a clamp device 17 onto a screen 15 moving in the direction of arrow Ar ₂
A printing paper (not shown) is supplied between the two, and the ink supplied to the base paper 16 through the screen 15 oozes onto the printing paper to perform printing.

As shown in FIG. 4, the clamping device 17 includes a locking plate having a substantially constant width and having protrusions 19, 19, . 20, a shaft 23 rotatably supported by bearings 21 and 22 provided at both ends of the locking plate 20, and a cross-sectional shape of the shaft 23 externally fitted and fixed to the shaft 23 having a roughly U-shape; However, normally, the clamp plate 24 and the shaft 23 are placed in a prone position on the locking plate 20 by a spring (not shown).
The lever 25 is provided at one end of the lever 25 and rotates the shaft 23.

The locking plate 20 includes belts 26 provided on both sides of the screen 15 in order to move the screen 15 stretched between the rotating drums 13 and 14 with the screen 15 without slipping relative to the rotating drums 13 and 14. , 27.

When the base paper 16 is clamped, its leading end fits into the clamp plate 24 and is prevented from coming off the protrusions 19, 19, . . . of the locking plate 20.

On the other hand, the waste plate winding device 12 includes feed rollers 31 and 32 that take in the waste plate 16, as shown in FIG.
Roller groups 33, 34, 35, 36, 37 to which the waste plate 16 is fed from these feed rollers 31, 32
and 38, a belt 39 stretched between rollers 33, 34, 35, a belt 40 stretched between rollers 34, 35, 36, rollers 35, 36, 3
Belt 41 stretched between 7 and rollers 37, 3
8 belts 42 stretched between these belts 3
Winding core 4 supported by 9, 40, 41 and 42
3, and a gear mechanism described later for rotationally driving the feed roller 31 and roller 38.

The feed rollers 31 and 32 are arranged outside and parallel to the rotary drum 13, which rotates in the direction of arrow _Ar3 , and the shaft 32a of the feed roller 32 is supported by a spring (not shown). It is urged toward the shaft 31a. Therefore, the feed roller 32 comes into pressure contact with the feed roller 31 rotating in the direction of arrow Ar ₄ and rotates in the direction of arrow Ar ₅ .

Rollers 33, 34, 35, 36, 37 and 3
8 is located on the opposite side of the rotating drum 13 with respect to the feed rollers 31 and 32, and is located at the apex of a substantially regular pentagon.

Among the rollers 33, 34, 35, 36, 37 and 38, the rollers 33 and 38 are the feeding roller 3.
1 and 32, and these rollers 33 and 3
8 is smaller than the outer diameter of the winding core 43.

The core 43 is formed of hard paper such as cardboard or synthetic resin into a cylindrical shape, and in this embodiment, for example, the length of the core 43 is approximately 310 mm for the waste plate 16 having a width of 270 mm. The belt 39, 4 has elasticity like a coil spring.
0, 41 and 42 are in pressure contact with the outer circumferential surface of the core 43, and the core 43 is moved around the rollers 33, 34, 35, 3.
It is supported inside a regular pentagon with vertices 6, 37, and 38.

Although only one each of the belts 39, 40, 41 and 42 is shown in FIG. 3, the belt 39 is
The belt 40 is stretched over the rollers 34, 35 and 36, the belt 41 is stretched over the rollers 35, 36 and 37, and the belt 42 is stretched over the rollers 37 and 38. Supported as above.

Of the rollers 33, 34, 35, 36, 37 and 38, the rollers 33 and 34 are rotatably attached to a frame 46 which is rotatably attached to the frame 44 by a support shaft 45, while the remaining rollers 35, 36, 37 and 38 are rotatably attached to the frame 44.

When setting the winding core 43 in the waste plate winding device 12, the locking fittings 100 of the frame 46 are attached to its support 1.
10 as shown by the two-dot chain line to release the engagement between the locking pawl 100a of the locking fitting 100 and the locking shaft 120, and move the frame 46 from the position shown by A in FIG. The support shaft 45 is used as a rotation axis and is rotated to the position shown by B, the winding core 43 is set on the belts 41 and 42, and the above-mentioned frame 46 is rotated.
When the winding core 43 is returned to the position A, the belts 39, 40,
41 and 42.

Next, the gear mechanism of the feed rollers 31 and 38 will be explained with reference to FIG.

As shown in FIG. 5, the shaft 3 of the roller 38
Gears 51 and 52 are attached to 8a, and
The shaft 31a of the feed roller 31 is equipped with the gear 5.
A gear 53 that meshes with 1 is attached.

The other gear 52 attached to the shaft 38a meshes with a speed increasing gear 54, which is driven via a gear 55 by a drive gear 56 that rotationally drives the rotating drum 14. Ru.

A well-known spring clutch 57 that utilizes spring buckling is provided between the speed increasing gear 54 and the gear 55, and a through-type solenoid 58, which will be described below,
When winding up the waste plate 16, the spring clutch 57 is turned on and the speed increasing gear 54 is connected to the gear 55, and when the waste plate 16 is not being wound up, the spring clutch 57 is turned off and the speed increasing gear 54 is disconnected from the gear 55. There is.

The solenoid 58 is energized when the waste plate 16 is wound up and causes the plunger 59 to protrude in the direction of the arrow Ar ₆ toward the rotating drum 13 , so that the tip of the plunger 59 along with the rotating drum 13 is energized.
The lever 25 of the clamp device 17 rotating in the direction Ar ₃ is brought into contact with the lever 25, the clamp plate 24 is rotated via the shaft 23, and the tip of the waste plate 16 is kicked up and locked by the clamp plate 24. The tip of the waste plate 16 is removed from the protrusions 19, 19, . . . (see FIG. 4) of the plate 20, and is fed into the waste plate winding device.

On the other hand, the rear end of the plunger 59 of the solenoid 58 is coupled to one end of an L-shaped lever 62 rotatably attached to a support shaft 61. The other end of the lever 62 is rotatably attached to a support shaft 63 and always comes into contact with one end of a lever 64 which is biased in the direction of arrow Ar ₇ by a spring (not shown).

The other end of the lever 64 is bent at a substantially right angle,
Normally, one end 57a of the spring clutch 57 is locked, and when the solenoid 58 is energized,
As the plunger 59 moves in the direction of the arrow Ar ₆ , the lever 64 rotates in the opposite direction to the arrow Ar ₇ , thereby turning on the connection between the gear 55 and the speed increasing gear 54.

In addition, in FIG. 5, 65 is a guide for feeding the waste plate 16 to the feeding rollers 31, 32 and the roller 38.

Next, the operation of the waste plate winding device described above will be explained with reference to FIGS. 3 and 5.

When the necessary printing is completed and a discard switch (not shown) is operated to discard the waste plate 16, the drive gear 56 moves the rotating drums 13 and 14 in the directions of arrows Ar ₃ and Ar _2, respectively. Upon rotation, the solenoid 58 is energized and its plunger 59 is displaced in the direction of arrow Ar ₆ .

When the plunger 59 is displaced as described above, the distal end of the waste plate 16 is lifted up by the clamp plate 24 of the clamping device 17 to release the clamp, and guided by the guide 65 to the feed roller 31. , 32.

On the other hand, at this time, since the spring clutch 57 has turned on the connection between the gear 55 and the speed increasing gear 54, the gears 51 and 53 also rotate.
The roller 38 and the feed roller 31 are rotationally driven.

The above rotation of the roller 38 is performed by the belts 42, 41, 4.
0, 39 to rollers 37, 36, 35, 34 and 33, and the rotation of feed roller 31 is also transmitted to another feed roller 32.

Therefore, the waste plate 16 sent between the feed rollers 31 and 32 is bitten by these feed rollers 31 and 32, and is passed from between the rollers 33 and 38 to the guide 6.
5 between the belt 39 and the winding core 43.

The core 43 is the roller 33, 34, 35, 3
Belts 39, 4 by rotation of 6, 37 and 38
By the movements of 0, 41 and 42, the waste plate 16 is tightly wound onto the outer peripheral surface of the winding core 43. The second and subsequent waste plates 16 are wound one after another on the outside of the previously wound waste plates 16.

As the number of windings of the waste plate 16 increases, the outer diameter of the winding core 43 increases.As shown by D in FIG.
and 42 to the point where the tensions are balanced.

To wind up the waste plate 16, the outermost waste plate 16 wound around the winding core 43 is moved to the rollers 33, 34, 35, 3.
6, 37, and 38, and in the example of FIG.
6 can be rolled up.

As mentioned above, the core 4 on which the waste plate 16 is wound
3, the frame 46 is rotated from position A to position B in FIG. 3, and the winding core 43 is taken out.

Note that when the number of waste plates 16 wound around the core 43 exceeds the maximum number of sheets to be wound, the rollers 33, 3
Among the rollers 4, 35, 36, 37, and 38, for example, the shaft 35a of the roller 35 is configured to be able to move a minute amount outward with respect to the winding core 43, and the movement is controlled by a micro switch (not shown).
By detecting this, it is possible to know that the number of waste plates 16 already wound around the core 43 has reached the maximum number of sheets to be wound.

The present invention is not limited to the above-mentioned embodiments, and various configurations can be made within the scope of the gist of the present invention.

For example, the number of rollers 33 to 38 may be at least four, and the belts 39 to 42 may be stretched by skipping one or two rollers or forming a loop by three or four rollers in the same loop. It is also possible to stretch an arbitrary number of belts.

Further, for the belts 39 to 42, in addition to elastic coil springs, rubber rings, non-stretchable chains, V-belts, round belts, flat belts, etc. can also be used. When using a non-stretchable chain or the like, the shafts of the rollers 33 to 38 are supported so as to be movable approximately in the radial direction of the winding core 43, and tension is applied to the belts 39 to 42 by springs or the like on these shafts. or rollers 33 to 38.
Alternatively, a tension roller may be provided to apply tension to the belts 39 to 42. Effects of the Invention As is clear from the detailed description, the present invention provides a method for stretching a belt between at least four rollers so as to surround the core of a waste plate in a rotary type top copy printing machine, etc. The core is rotated and supported, and the waste plate is caught between the core and the belt and wound onto the core, so the belt functions as a guide when winding the waste plate onto the core. However, it is possible to wind up a large number of waste plates onto a single core, and when winding up waste plates, the ink-stained side of the waste plate can be rolled up inside, so the adhesive strength of the ink makes it easy to roll up the waste plates. The rolled up waste plate does not come loose, and when you take out the core, you can remove it by holding the part of the core that does not have ink on it, which protrudes outside the rolled up waste plate, so you don't have to get your hands dirty at all. do not have.

Further, according to the present invention, there is no need for a roller or shaft to receive the core, the mechanism of the waste plate winding device is simplified, and the core can be easily set. Since the mechanism consists only of rotational movement, it generates little noise.
High-speed winding of discontinued editions is also possible.

[Brief explanation of drawings]

FIG. 1 is an explanatory diagram of a conventional waste plate winding device, FIGS. 2a and 2b are respectively explanatory diagrams of another conventional waste plate processing device, and FIG. 3 is an explanatory diagram of a waste plate winding device according to the present invention. FIG. 4 is a perspective view of a rotating drum and a clamp device, and FIG. 5 is a perspective view for explaining the configuration of a gear mechanism portion of the waste plate winding device shown in FIG. 3. 11... Printing department, 12... Waste plate winding device, 16
...Discarded plate (original paper), 17... Clamp device, 24
...Clamp plate, 25...Lever, 31, 32...
...Feed roller, 33, 34, 35, 36, 37,
38... Roller, 39, 40, 41, 42... Belt, 43... Core, 51, 52, 53... Gear, 54... Speed-up gear, 56... Drive gear, 57
...Spring clutch, 58...Solenoid.

Claims (1)

[Claims] 1. The leading edges of used waste plates mounted on a printing drum or a printing screen are pressed against each other and sent between rotating feed rollers, and the waste plates are positioned behind the feed rollers. A waste plate winding device configured to wind the waste plate onto the core in synchronization with the feed speed of the waste plate, wherein the feed roller has an outer side of the core from immediately after one of the feed rollers to immediately after the other of the feed rollers. and at least four rollers arranged around the feed roller, and two or more rollers with a space between two rollers located immediately after the feed roller, each of which is wound around the core. and an elastic belt in contact with the waste plate, and these belts elastically rotationally support the winding core and drive each of the rollers in synchronization with the feeding speed of the waste plate. Waste plate winding device.