JPH0613179Y2 - Phase adjuster for impeller for folding machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a device for adjusting the phase of an impeller of a folding machine attached to a rotary printing machine, and more particularly, to a blade while continuing printing and origami work. The present invention relates to a phase adjusting device improved so that the phase of a vehicle can be arbitrarily advanced or delayed.

[Prior art]

FIG. 2 is a schematic diagram of a chopper folding device attached to a rotary printing press.

A long paper 1 continuously printed by a rotary printing machine (not shown) slides along a triangular plate 2 and is folded in two in the vertical direction and fed to a single squeeze roller 3.

The lengthy paper 1 is further sandwiched between the nipping roller 4 and the paper pressing roller 4 ', is drawn, is cut in the transverse direction by the cutter cylinder 5, passes through the thrusting cylinder 6 and the gripping cylinder 7, and is then turned to page 8. Is folded into a signature book. (Some folding machines other than this example can be folded into a 16-page signature, but in principle it is similar to this example).

The folded signature is sandwiched between the endless tapes 8 and 9 for transportation and sent to the chopper device group 10. The signature 1'passing through the chopper device group enters between the blades of the impeller 13 rotating in the direction of the arrow a, comes into contact with the stopper plate 14 and naturally falls, and is placed on the delivery tape 15 and carried out. To be done.

FIG. 3 is a sectional view showing a conventional example of the drive structure of the impeller 13 described above.

In this conventional example, three bosses 12 are fixed to the impeller shaft 11 with fixing bolts 16, and a plurality (5
(~ 10) blades are fixed to form the impeller 13.

One end of the impeller shaft 11 is supported by a frame 24 'via a bearing 25, and a coupling 17 is fixed to the other end.

On the other hand, a receiving gear 23 is fixed to one end of the drive shaft 20, and a coupling 18 is fixed to the other end of the drive shaft 20, and a central portion thereof is supported by a frame 24 via a bearing 21. 22 is a bearing cover.

The couplings 17 and 18 are fastened by bolts 19.

[Problems to be solved by the invention]

(See Fig. 2) If the signature 1'does not fit properly between the impellers 13, stop the machine and loosen the bolts 19 (Fig. 3) to shift the mounting angles of the couplings 17 and 18 Re-tighten 19. In this case, how many times the couplings 17 and 18 are to be displaced depends on the experience of the operator, and if the result of the trial run is not satisfactory, the above adjustment operation must be repeated.

The frequency of occurrence of the above condition requiring the adjustment work depends on the working conditions. For example, when the signature size changes in the traveling direction and the paper width direction, the number of pages changes drastically, or the paper quality and the paper thickness change as in a gravure rotary press, the adjustment (impeller shaft 11 And the receiving gear 23 must be adjusted in phase.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a device capable of precisely adjusting the phase of the impeller while continuing the operation of the printing machine and the folding machine.

Of course, if the operation can be adjusted intermittently, the efficiency will not be reduced by stopping the operation, but further, the phase can be advanced or delayed while visually checking the operating state of the impeller (inserted state of the signature 1 '). Thus, the optimum adjustment state can be obtained quickly and easily, and the operator does not need any special experience or special skill.

[Means for solving problems]

The present invention, which was created to achieve the above object, is applied to a device for adjusting the phase of the impeller by changing the mounting angle between the impeller shaft and the receiving gear provided in the folding machine, (a) A tubular shaft having a female spline fixed concentrically with the impeller shaft, (b) an adjusting shaft member having a male spline fitted to the female spline and a male screw concentrically formed, c) a nut member provided with a female screw to be screwed into the male screw, (d) a receiving gear concentrically connected to the nut, and (e) reciprocating the adjusting shaft member in the axial direction. It is provided with an operating means for moving it.

[Action]

With respect to the above-mentioned structure, when viewing this around the adjusting shaft member, the adjusting shaft member is spline-connected to the impeller shaft and screw-connected to the receiving gear.

For this reason, when the adjusting shaft member is moved in the axial direction, the phase does not change with respect to the impeller shaft (because of sliding by a spline). Thus, the phase of the receiving gear changes due to the screw action.

With the above operation, when the adjustment shaft member is moved in the axial direction, the phase between the impeller shaft and the receiving gear changes.

〔Example〕

FIG. 1 is a sectional view showing one embodiment of a phase adjusting device according to the present invention.

A bearing case 28 is fixed to a frame 24 that is a stationary member. 30 is a mounting bolt.

An outer ring of a bearing 29 is fitted in the bearing case 28 and is prevented from coming off by a bearing retainer 27.

A pipe shaft 31 is concentrically connected and fixed to an impeller shaft 11, which is a driven rotary member, via a coupling 26. The pipe shaft 31 is fitted in the inner ring of the bearing 29, and is rotatably supported while being positioned in the thrust direction.

A female spline is formed on the left half of the pipe shaft 31 in the drawing, and a male spline portion 42b is formed on the right half of the shaft member 42 for phase adjustment (abbreviated as adjusting shaft member) in the drawing.
It is fitted with.

A multi-thread screw 42a is provided near the center of the adjusting shaft member 42.

In carrying out the present invention, the lead angle of the above-mentioned multi-thread screw 42a is set to be large and set to be larger than the friction angle. The lead angle in this example is 45 degrees.

The nut member 37 is configured and screwed with the multi-thread screw 42a.

On the other hand, the receiving gear 32 is connected to the pipe shaft through the bearing 33.
Fit on 31. 35 is a bearing retainer and 36 is a mounting bolt.

As a result, the receiving gear 32 is rotatably supported by the pipe shaft 31 while being positioned in the thrust direction.

The nut member 37 is fixed to the receiving gear 32 by the bolt 38 via the bearing retainer 35.

39 is a double nut for closing the play in the axial direction of the multi-thread screw 42a, and 40 is an adjusting bolt.

In FIG. 1, the constituent portion shown to the left of the left end portion of the adjustment shaft member 42 is a manual operation means for driving the adjustment shaft member 42 in the left-right direction in the drawing.

The bearing nut 50 is fixed to the gear cover 51, which is a stationary member. 52 is a mounting bolt.

The female screw 50a provided on the bearing nut 50 is attached to the screw shaft 54
Are screwed together. 55 is a bearing metal.

A portion of the screw shaft 54 corresponding to the bearing metal 55 is formed in a columnar shape, and a clamp bolt 53 for preventing rotation is brought into contact with the columnar portion.

56 is a handle connected by a pin 57.

As a result, when the clamp bolt 53 is loosened and the hand 56 is turned, the screw shaft moves forward and backward in the left-right direction in the drawing.

A bearing case 46 is attached by a pin 49 to the right end portion of the screw shaft 54 in the figure.

The outer ring of the bearing 43 is fitted into the bearing case 46, and is removed by the bearing retainer 47. 48 is a mounting bolt.

A small diameter portion on the left end of the adjusting shaft member 42 is fitted to the inner ring of the bearing 43, and is prevented from coming off by an end washer 44.
45 is a mounting bolt.

The phase adjusting device of the present embodiment configured as described above (first
In the figure), when the receiving gear 32 is rotated via an original gear (not shown), the rotation is transmitted to the adjusting shaft member 42 via the nut member 37 and the polyhedral screw 42a.

The rotation of the adjusting shaft member 42 is transmitted to the pipe shaft 31 via the spline portion 42a and further to the impeller shaft 11 via the coupling 26.

In the above transmission path, the phase relationship between the adjusting shaft member 42 and the impeller shaft 11 is always constant (because of spline connection).

However, the phase relationship between the adjusting shaft member 42 and the receiving gear 32 changes depending on the screwing relationship of the multiple thread 42a. That is, a phase difference is generated with the relative displacement of the adjusting shaft member 42 and the receiving gear 32 in the axial direction. However, since the position of the receiving gear 32 in the axial direction is restricted, the phase changes depending on the position of the adjustment shaft member 42 in the left-right direction, and pushes the adjustment shaft member 42 against the nut member 37, When driven in the direction of pulling out from the nut member 37 (assuming that the receiving gear 32 does not rotate), the adjusting shaft member 42 is rotated by a screw action. Adjustment shaft member
When the 42 is rotated with respect to the receiving gear 32 (fixed to the nut member 37), the impeller shaft spline-fitted to the receiving gear 32.
11 is also rotated with respect to the receiving gear 32 (the phase changes).

Since the adjusting shaft member 42 is driven in the left-right direction with the rotation of the handle 56, rotating the handle 56 advances or delays the phase of the impeller shaft 11 with respect to the receiving gear 32. It is done.

The phase adjustment operation described above can be performed while the impeller shaft 11 and the receiving gear 32 are rotating. Therefore, (see FIG. 2), while visually checking the state in which the signature 1'is repeatedly and continuously inserted between the impellers 13, the phase can be advanced or fed to quickly and easily perform the best operation. The state of can be obtained.

[Effect of device]

As described above, when the phase adjusting device of the present invention is applied to the folding machine of the rotary printing press, the phase of the impeller can be changed quickly and easily while intermittently operating the rotary printing machine and the folding machine. It has an excellent practical effect that it can be adjusted to the best condition without requiring special skill.

[Brief description of drawings]

FIG. 1 is a sectional view showing an embodiment of the phase adjusting device of the present invention. FIG. 2 is a schematic diagram showing a folder for a rotary printing press. FIG. 3 is a sectional view of a conventional phase adjusting device. 11 ... Impeller shaft, 31 ... Pipe shaft, 32 ... Receiving gear, 37 ... Nut member, 42 ... Adjusting shaft member (phase adjusting shaft member), 42a ...
Multi-thread screw, 42b… Spline part, 50… Bearing nut, 50a…
Female screw, 54 ... Screw shaft, 56 ... Handle.

Claims (1)

[Scope of utility model registration request] 1. A structure in which a receiving gear is attached to and driven by an impeller shaft of an impeller provided in a folder attached to a rotary printing press, and the mounting angle between the impeller shaft and the receiving gear is changed. In a device for adjusting the phase of the impeller, (a) a tubular shaft having a female spline fixed concentrically with the impeller shaft, and (b) a male spline fitted to the female spline. An adjusting shaft member having a male screw and a male screw formed concentrically; (c) a nut member having a female screw to be screwed onto the male screw; and (d) a receiving member concentrically connected to the nut. A phase adjusting device for an impeller for a folding machine, comprising: a gear; and (e) operating means for reciprocating the adjusting shaft member in the axial direction.