JPH09136753A - Paper discharging impeller - Google Patents

Abstract

PROBLEM TO BE SOLVED: To orderly arrange pull-out binding discharged on a paper discharge conveyor by constituting impellers such that the contact part of pull-out binding and a vane is different at least between two impellers. SOLUTION: The mounting parts of vanes 5a, 5b and the vane bottoms 11a, 11b of odd-step impellers 4R, 4T are formed in shallow shape. The vane bottoms 12a, 12b of even-step impellers 4S, 4U are deeply cut in a circumferential direction and the space between the vanes 5a and 5b is made larger than the space between the odd-step impellers 4R and 4T and the outside diameter of the part in which a pull-out binding 50 is inserted is made large. Accordingly, the tip of the pull-out binding 50 hits the vane bottom 11a... or 12a... and is slightly bent during operation by disposing impellers with different vane bottoms 11a..., 12a... in an axial direction. The pull-out binding 50 is firmly inserted between the vanes by braking force produced by elastic force of the bent pull-out binding 50 and friction force of the vanes 5a, 5b.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a paper output impeller of a rotary press folder equipped with a plurality of stages of impellers.

[0002]

2. Description of the Related Art FIGS. 7 to 9 show a loom for a rotary press.
A configuration diagram of the paper output impeller of the folding machine and its vicinity is shown.
7 to FIG. 9, 1 is a conveyor belt, 2 is a delivery impeller, and FIG. 7 shows a state in which the signature 50 conveyed by the conveyor belt 1 is inserted into the ejection impeller 2. .

The discharge impeller 2 has a plurality of impellers 4R, which are fixed to the rotary shaft 3 at regular intervals in the axial direction.
It is equipped with 4S, 4T and 4U. Same impeller 4R, 4S ...
A plurality of stages of blades 5 (5a, 5
b, 5c, etc.) are fixed, and the above-mentioned signature 5
0 refers to adjacent blades (for example) as shown in FIG.
It is inserted between 5a and 5b.

As shown in FIG. 7, the folded plate 50 is rubbed along the inner surface 6 (6a, 6b ...) of the blade 5 until it reaches the blade bottom 7 (7a, 7b ...). After being decelerated by, the blade reaches the blade bottom 7. Next, the folding plates 50 that have entered the discharge impeller 2 are temporarily stopped by a stopper 8 provided below the impeller 2 and then scraped off one by one on the discharge conveyer 9 outside the folding machine. Be delivered to.

The blades 5 and the blade bottoms 7 of the impeller 4 are installed in the same shape and in the same phase in the axial direction of the rotary shaft 3, so that the signature 50 is straight without waviness in the axial direction. Then, enter the discharge impeller 2.

[0006]

In the conventional discharge impeller as described above, since the folding speed at the blade bottom 7 is sufficiently higher than the speed (peripheral speed) of the blade bottom, the impeller is A phenomenon occurs in which the signature 50 inserted into the blade 4 hits the blade bottom 7 strongly and bounces off.

As a result, the posture of the signature 50 is collapsed, and the position of the leading end of the signature 50 varies.
The arrangement of the signatures 50 discharged to the upper side is disturbed, and in a remarkable case, the signatures 50 fall off the paper discharge conveyor 9, causing a problem.

An object of the present invention is to prevent the rebounds of the signatures inserted in the impeller for paper ejection from collapsing after colliding with the blade bottoms of the signatures so that the signatures ejected on the paper ejection conveyor are arranged in an orderly manner. It is to provide a paper discharge impeller which is made into.

[0009]

The present invention is intended to solve the above-mentioned problems, and the first means, which is the gist of the present invention, is that the blades for discharging the signatures of the folder are fixed along the circumferential direction. In a paper discharge impeller in which a plurality of installed impellers are arranged in the axial direction of the rotating shaft, the impellers in each of the stages have at least two stages of contact between the folding plate and the blades. The paper discharge impeller is characterized by being configured differently.

According to the above means, when the tip of the folding tab is inserted between the blades of each impeller, the portions where the folding tab and the blade contact are different in the axial direction of the rotary shaft, so It is slightly bent in the axial direction to form a wavy shape, and due to the elastic force of the signature due to this curvature and the braking force due to the friction with the blade, the signature is firmly inserted between the blades, and bounce is prevented.

According to the second means, as a concrete means of the first means, the impellers of each stage have different shapes from the bottom to the tip of the blades between at least two stages of impellers. It has been configured in. According to such means, when the folding plates are inserted into the respective impellers, the positions at which the folding plates come into contact with the blade bottoms of the impeller are different in the axial direction of the rotating shaft, so that the folding plates are curved in the axial direction and wavy. Therefore, the rebound of the signature is prevented as in the above.

Further, according to the third means, as a concrete means of the first means, it is rotatably mounted around the rotary shaft between the impellers of the respective stages, and the folding is performed by the rotation. It is equipped with an adjusting plate that adjusts the amount of undulation in the axial direction of the tablet. According to such means, by rotating the adjusting plate around the rotation axis, the insertion position of the folding plate into the blade of the impeller changes in the axial direction, and the degree of waviness of the folding plate can be adjusted. Similar to the above, the rebound of the signature is prevented.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below in detail with reference to FIGS. FIG. 1 is a front view of a main part of a delivery vane wheel according to a first embodiment of the present invention, and FIG. 2 is a cross-sectional view of a main part in a direction perpendicular to a rotation axis showing details of an outer peripheral part of the vane wheel. ing.

In FIGS. 1 and 2, 3 is a rotary shaft, 4R,
The impellers 4S, 4T, and 4U are fixed to the rotary shaft 3 at equal intervals in the axial direction (four in this embodiment). Of the above four impellers, an odd number stage, that is, the first stage,
As shown in FIG. 2 (A), the mounting portions of the blades 5a, 5b ... And the blade bottoms 11a, 11b of the third stage impellers 4R, 4T are formed in the shallow blade bottoms 11a, 11b. There is.

Further, the even-numbered stage, that is, the second and fourth stage impellers 4
As shown in FIG. 2B, S and 4U are the bottoms of each blade 12
a, 12b ... are deeply sunk in the circumferential direction, and the distance w between the blades 5a and 5b is the above-described first stage and third stage impellers 4R, 4
It is formed to be larger than T, and the outer diameter of the portion into which the signature 50 is inserted is formed to be large.

Therefore, when the discharge impeller is in operation, the impellers 4 having different blade bottoms 11a, ...
By arranging R, 4T and 4S, 4U in the axial direction, as shown in FIG. 1, the tip of the signature 50 is inserted into the impellers 4R, 4S ...

That is, the tip of the folding plate 50 has a blade bottom 11a,
11b ... or 12a, 12b ...
As shown in FIG. 5, the bent part 50 is slightly bent in the axial direction, and the bent part 50 is inserted between the blades 5a and 5b by the elastic force of the bent part by this bending and the braking force by the friction coefficient of the blades 5a, 5b. By this, the rebound of the folding table 50 is prevented.

FIGS. 3 to 4 show the structure of the delivery vane wheel according to the second embodiment of the present invention. In this embodiment, as shown in FIG. 4, the blade bottoms 7a, 7b,
The shape of 7c is the same as the conventional one shown in FIGS. 7 to 9, but the first and third stage impellers 4R and 4T and the second and fourth impellers are used.
The blades 5a and 5b are attached to the stepped impellers 4S and 4U with a certain amount of deviation in the circumferential direction.

That is, in this embodiment, odd-numbered stage impellers (4R, 4T) and even-numbered stage impellers (4S, 4U)
And the mounting positions of the blades 5a and 5b, that is, the blade bottoms 7a and 7b
The positions of ... are displaced by a certain amount in the circumferential direction, and the signature 50 has blades 5a of the impellers 4R, 4T of odd stages.
(Or 5b) is inserted along the inner side 6 and the outer side 10 of the blades 5a (or 5b) of the even-numbered stage impellers 4S, 4U, so that in the axial direction of the rotary shaft 3, as shown in FIG. , The phases of the blades are alternately changed for each of the impellers 4R, 4T and 4S, 4U, and the signature 50 is inserted in a wavy manner, and the rebound of this is prevented.

5 to 6 are structural views of the delivery vane wheel according to the third embodiment of the present invention. In this embodiment, the blade bottoms 7a, 7b, 7c ... Have the same shape as the conventional one shown in the figure, and the rotational phase around the rotary shaft 3 is also the same, but the impellers 4R, 4S, 4T ... Adjustment plates 13a, 13b, ... For adjusting waviness of the signature 50, which are rotatable around the rotary shaft 3, are provided therebetween.

As shown in FIG. 5, the adjusting plates 13a, 13b, ... Have an outer peripheral surface formed into a smooth uneven surface in the circumferential direction, and by rotating this, the blades 5 at the tips of the folding plates 50 are formed.
It is possible to adjust the degree of waviness by changing the insertion position to a, 5b ... In the axial direction. That is, in FIG. 5, the adjusting plates 13a and 13b are
The amount of waviness becomes maximum at the position of and becomes minimum at the position of 13 s.

[0022]

The present invention is configured as described above.
According to the first aspect of the present invention, since the part where the tip of the folding plate contacts the blades of the impeller of each stage is different in the axial direction, the folding plate has a wavy shape in the axial direction and sandwiches the folding plate. As a result, the rebound of the signature at the blade bottom is prevented. As a result, the tip of the signature can be reliably regulated by the blade bottom and held at that position, and the posture and spacing of the signature discharged on the paper discharge conveyor can be stabilized.

According to the second aspect of the present invention, when the folding tab is inserted into each impeller, the position at which the folding tab comes into contact with the blade bottom of the impeller is different in the axial direction of the rotary shaft. It bends in the direction to form a wavy shape, which can prevent the rebound of the signature similar to the above.

According to the third aspect of the present invention, by rotating the adjusting plate about the rotation axis, the insertion position of the folding plate into the blade of the impeller is changed in the axial direction.
It is possible to adjust the degree of undulation of the signature, and thereby to prevent the recoil of the signature more reliably.

[Brief description of the drawings]

FIG. 1 is a structural diagram along an axial direction of a delivery vane wheel according to a first embodiment of the present invention.

FIG. 2 is an enlarged cross-sectional view showing a structure of a signature insertion portion of the impeller in the first embodiment.

FIG. 3 is an equivalent view of FIG. 1 showing a third embodiment of the present invention.

FIG. 4 is an enlarged view of a signature insertion portion of the impeller in the second embodiment.

FIG. 5 is a layout view of an impeller and an adjusting plate showing a third embodiment of the present invention.

FIG. 6 is an external view in the axial direction of the impeller in the third embodiment.

FIG. 7 is a front external view showing the structure of a conventional paper output impeller.

FIG. 8 is a corresponding view of FIG. 1 showing a conventional paper discharge impeller.

9 is a sectional view taken along line XX of FIG.

[Explanation of symbols]

50 Folding tabs 2 Paper discharge impeller 3 Rotating shafts 4R, 4S, 4T, 4U ... Impellers 5a, 5b ... Impellers 7a, 7b ..., 11a, 11b ..., 12a, 12b ...
Blade bottom 13a, 13b ... Adjusting plate

Claims (3)

[Claims] 1. A paper discharge impeller in which a plurality of impellers, each of which has blades for ejecting a signature of a folder, are fixed along a circumferential direction, are arranged in a plurality of stages in an axial direction of a rotating shaft. The sheet discharge impeller, wherein the impeller of each stage is configured such that a portion where the folding plate and the blade contact each other differs between at least two stages of the impeller. 2. The discharge impeller according to claim 1, wherein the impeller of each stage is configured such that the shape of the blade from the blade bottom to the tip is different between at least two stages of impellers. 3. An adjusting plate mounted between the impellers of the respective stages so as to be rotatable around the rotary shaft and adjusting the amount of undulation in the axial direction of the signature by the rotation. Discharge impeller described.