JP2001058747A - Feed roll - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily adapt space of a fixed feed pin and a movable feed pin to space in a width direction of feed holes of a continuous paper by providing the fixed feed pin engaged to the feed hole on one side of continuous paper at one end of a feeding cylinder and moving the movable feed pin engaged to a feed hole on the other side of continuous paper in a rotary shaft direction of the feeding cylinder by a moving and rotating pipe. SOLUTION: The fixed feed pin 1 engaged to one feed hole H1 provided at a side part of continuous paper P is provided at one end of the hollow cylindrical feeding cylinder 2. On the moving and rotating pipe 3 which freely rotatably receives the rotary shaft 2a of the feeding cylinder 2, a movable feed pin 4 engaged to the other feed hole H2 is rotatably arranged. When a dimension of continuous paper to be used is changed, space W1 of the fixed feed pin 1 and the movable feed pin 4 is made to coincide with space W2 of the feed holes H1, H2 on both sides of continuous paper by moving the movable feed pin 4 in the rotary shaft 2 direction by operating the moving and rotating pipe 3.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a feed roll used in an apparatus using continuous paper provided with feed holes on both sides, such as a rotary printing press or an ink jet printing press, and more particularly to a continuous feed roll having different widths. The present invention relates to a feed roll capable of responding to paper feeding.

[0002]

2. Description of the Related Art When feeding continuous sheets of different widths,
Since the distance between the feed holes on both sides and the distance between the feed pins of the feed roll must be the same, prepare a separate device that conforms to the specifications of the paper, or replace the feed roll and replace the paper. It was necessary to conform to the standard. In the former case, it is extremely uneconomical and impractical because a plurality of mechanical devices having similar functions must be installed and the installation locations must be secured. Therefore, it is generally handled by exchanging the feed roll.

[0003] However, the work of replacing the feed roll involves:
Not only is it cumbersome and time-consuming, but it also requires disassembly of the precisely assembled machinery, which requires re-adjustment, leading to a reduction in the operating rate.

[0004]

SUMMARY OF THE INVENTION The present invention can easily adapt to the size of continuous paper to be used, more specifically, the interval in the width direction of a continuous paper feed hole, and It is an object of the present invention to provide a feed roll that does not require readjustment, thereby increasing work efficiency.

[0005]

SUMMARY OF THE INVENTION A feed roll according to the present invention for feeding by engaging feed holes provided on both sides of a continuous sheet is provided with a fixed feed engaging a feed hole on one side of the continuous sheet. A hollow cylindrical feed cylinder having a pin at one end thereof and having a rotary shaft at the center thereof, a moving rotary pipe rotatably receiving the rotary shaft of the feed cylinder therein, and engaging with the movable rotary pipe On the other hand, a movable feed pin which rotates together with the feed cylinder so as to engage with the feed hole on the other side of the continuous paper and feed the continuous paper, and the movable feed pin is provided on the feed cylinder by a moving rotary pipe. It is configured to be moved in the rotation axis direction.

When the size of the continuous paper to be used is changed, the movable feed pin is moved in the direction of the rotation axis by the movable rotary pipe, and the interval between the fixed feed pin and the movable feed pin is set between the feed holes on both sides of the continuous paper. By matching the interval, the feed roll is adapted to the width of the continuous sheet after the change.

[0007] The feed roll of the present invention also has a fixed rod disposed on the feed cylinder in parallel with the moving rotary pipe, and a long hole extending in the direction of the rotary axis at the periphery thereof.
A thread may be provided on the outer periphery of the moving rotary pipe.
The movable feed pin is also prevented from rotating by the fixed rod, and is screwed with a thread of the movable rotary pipe so as to be moved in the direction of the rotation axis by the rotation of the movable rotary pipe. A rotatable support part rotatably mounted on the outer peripheral edge of the moving part and having a pin on the outer peripheral edge thereof, and the pin of the rotary support part protrudes outward through the long hole of the feed cylinder. It can be configured to be movable along the long hole.

The position of the movable feed pin is adjusted by rotating the movable rotary pipe. When the movable rotary pipe rotates, the movable feed pin screwed there is prevented from rotating by the fixed rod, so that the pin is prevented from being pressed against the long hole and damaged, and the screw of the movable rotary pipe is screwed. We move smoothly on the mountain. When the movable feed pin reaches a desired position, the movable feed pipe is stopped by stopping the rotation of the movable rotary pipe, whereby the movable feed pin is held at that position.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A feed roll according to an embodiment of the present invention is, as shown in FIGS. 1 and 2, fixed to engage one of feed holes H1 and H2 (H1) provided on both sides of a continuous paper P. A hollow cylindrical feed cylinder 2 having a feed pin 1 at one end thereof
A movable rotary pipe 3 rotatably receiving the rotary shaft 2a of the feed cylinder 2 therein; and a movable rotary pipe 3 rotatably disposed in the movable rotary pipe 3 and engaging with the other feed hole (H2). And a feed pin 4.

At least one (two in the illustrated case) fixed rods 5 are arranged inside the feed cylinder 2 in parallel with the movable rotary pipe 3. One end of the fixed rod 5 is attached to the machine frame B.
Etc. are attached to a suitable fixed member. A long hole 2b extending in the rotation axis direction is provided on the peripheral surface of the feed cylinder 2. The long holes 2b are respectively provided corresponding to pins provided on a movable feed pin 4 described later. The length of the elongated hole 2b in the rotation axis direction is preferably provided only in the moving range of the movable feed pin 4 so that the strength of the feed cylinder 2 is not unnecessarily weakened by providing the elongated hole. .

The movable feed pin 4 is prevented from rotating by the fixed rod 5, and is rotatably mounted on an outer peripheral edge of the screw moving part 4a held movably in the direction of the rotation axis while being rotatable. And the rotation support portion 4b. At least one (eight in the illustrated case) pins 4c for engaging with the feed hole H2 of the continuous paper project radially through the long hole 2b of the feed cylinder 2 on the outer peripheral edge of the rotary support portion 4b. In addition, it is provided so as to be able to move in the rotation axis direction along the elongated hole 2b.

A thread 3a is provided on the outer peripheral surface of the moving rotary pipe 3.
And an adjusting handle 6 for reversibly rotating the movable rotary pipe 3 is provided at one end thereof. The screw thread 3a has a screwing moving part 4a of the movable feed pin 4 screwed thereon and held. In the figure, a motor indicated by reference numeral 7 is a motor for rotating the feed cylinder 2 via the rotating shaft 2a,
Preferably, it is a servomotor, and what is indicated by reference numeral 8 is an encoder for detecting a pin position and controlling a feed roller. Since the configuration relating to the detection and control of the pin position is outside the scope of the present invention, the description thereof is omitted.

The feed roll of the present invention configured as described above adjusts the distance W1 between the feed pins 1 and 4 as follows.

The adjustment handle 7 is rotated to rotate the movable rotary pipe 3. When the moving rotary pipe 3 rotates, the screwing moving part 4a of the movable feed pin 4 screwed on the outer peripheral surface of the moving rotary pipe 3 via the thread 3a is prevented from rotating by the fixed rod 5. Move in the direction of the rotation axis. When the interval W1 between the feed pins 1 and 4 matches the interval W2 between the feed holes H1 and H2 of the continuous paper P to be fed, the rotation of the adjustment handle 7 is stopped and held at that position. Accordingly, the interval W1 between the feed pins 1 and 4 is adjusted to the interval W2 between the feed holes H1 and H2 of the continuous paper P.

At this time, the pin 4c of the movable feed pin 4 is
The feed cylinder 2 moves in the direction of the rotation axis in the long hole 2b. However, since the rotation support section 4b is rotatably mounted on the screwing movement section 4a, the rotational force of the moving rotary pipe 3 is directly increased. In addition, it is not transmitted to the pin 4c either indirectly or indirectly, and there is no possibility that the pin 4c is damaged when the movable feed pin 4 moves in the rotation axis direction.

The movable range of the movable feed pin 4 is such that the distance W1 between the two feed pins can be changed within a range from the maximum width (Wmax.) Determined by the mounted feed roll to substantially "0". It can also be configured. However,
From the viewpoint of weakening the feed cylinder 2 due to the formation of the long holes 2b, the minimum moving range of the movable feed pin 4 is set to the distance (Wmi) between the feed holes of continuous paper of the minimum width generally used.
n.).

In the above description, a kind of bolt conveyor composed of the moving rotary pipe 3 and the screwing moving portion 4a is shown and described as the moving means of the movable feed pin 4,
A hydraulic cylinder (not shown) is adopted as the driving means,
A movable feed pin 4 is fixedly mounted on a sliding pipe (not shown) movable in the rotation axis direction in the rotation axis direction, and the slide rod is moved in the rotation axis direction by a piston rod of a fluid pressure cylinder. It will be easily understood that a feed roll having a similar pin interval adjusting function can be formed by this.

[0018]

According to the present invention, when the size of the continuous paper to be used is changed, the movable rotary pipe 3 is operated to move the movable feed pin 4 in the direction of the rotation axis, and the fixed feed pin 1 is moved.
The distance W1 between the feed pin 4 and the movable feed pin 4 can be adjusted by matching the distance W2 between the feed holes H1 and H2 on both sides of the continuous paper. Further, when the movable rotary pipe 3 is rotated, the movable feed pin 4 screwed there is prevented from rotating by the fixed rod 5, so that the pin 4c is pressed against the long hole 2b and is not damaged. It is possible to reliably avoid the displacement of the pins 4c at the time of feeding the continuous paper, and to surely prevent the pins 4c from being displaced.
This makes it possible to easily and reliably adjust the distance W1 between the feed pins 1 and 4.

[Brief description of the drawings]

FIG. 1 is a schematic sectional view showing a feed roll according to an embodiment of the present invention.

FIG. 2 is a sectional view taken along line II-II in FIG.

[Explanation of symbols]

Reference Signs List 1 fixed feed pin 2 feed cylinder 3 moving rotary pipe 4 movable feed pin 5 fixed rod 6 adjustment handle H1, H2 feed hole P
Continuous paper W1 Spacing between both feed pins W2
Spacing between sprocket holes

 ────────────────────────────────────────────────── ─── Continued on the front page (72) Inventor Takanori Nishino 1-17-22 Omori Nishi, Ota-ku, Tokyo F-term in Taiyo Kikai Seisakusho Co., Ltd. (reference) 2C058 AB15 AC07 AE03 AE04 AF26 EA03 EB03 EB17 3F103 AA02 BE02 BE11 BE15

Claims (2)

[Claims] 1. A feed roll which engages with a feed hole provided on both sides of a continuous paper and feeds the paper, and a fixed feed pin which engages with a feed hole on one side of the continuous paper is provided at one end thereof. A hollow cylindrical feed cylinder having a rotation axis at its center,
A moving rotary pipe for rotatably receiving the rotary shaft of the feed cylinder therein, and engaging the movable rotary pipe while engaging a feed hole on the other side of the continuous paper to feed the continuous paper. And a movable feed pin that rotates together with the feed cylinder.
A feed roll, wherein the movable feed pin is moved in the direction of the rotation axis of the feed drum by a moving rotary pipe. 2. The feed cylinder has a fixed rod disposed inside thereof in parallel with the moving rotary pipe, and has a long hole extending in the rotation axis direction at a peripheral edge thereof, and the moving rotary pipe has a thread on its outer periphery. Wherein the movable feed pin is prevented from rotating by a fixed rod, and is screwed with a screw thread of the moving rotary pipe so as to be moved in the direction of the rotation axis by the rotation of the moving rotary pipe; A rotatable support portion rotatably mounted on the outer peripheral edge of the screwing moving portion and having a pin on the outer peripheral edge thereof, wherein the pin of the rotary support portion protrudes outward through a long hole of the feed cylinder and The feed roll according to claim 1, wherein the feed roll is movable along the elongated hole.