JPH061519A - Sheet winding device - Google Patents

Abstract

(57) [Summary] [Purpose] Each long sheet discharged from the sheet discharge section is wound into a roll without core, and
Reduce the winding diameter of the wound sheet. [Structure] A V-shaped arm 25 is provided, which is widened into a substantially V-shape toward a sheet discharging portion 23 and is opposed to the V-shaped arm 25.
The first roller 26 is attached to one end of the V-shaped arm 25 and the second roller 27 is attached to the other end of the V-shaped arm 25. Further, a main roller 30 having a small-diameter roller portion 28 and a large-diameter roller portion 29 and driven to rotate is used as a V-shaped arm 2.
Attach it to the bent part of 5. The first belt 32, which is rotationally driven in the direction of sending the sheet 7 discharged from the sheet discharge section 23 to the main roller 30 side, is wound between the first roller 26 and the small diameter roller section 28, and the main belt is rotated by the first belt 32. The second belt 33, which is rotationally driven in the direction in which the sheet 7 sent to the roller 30 side is sent to the second roller 27 side,
And a large-diameter roller portion 29.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sheet winding device for winding sheets discharged from a sheet discharging section one by one into a roll without a core.

[0002]

2. Description of the Related Art Conventionally, a sheet winding device for winding a sheet discharged from a sheet discharging portion into a roll without using a core by utilizing the rotation of two belts installed in a substantially V shape. There are various known types, for example, Japanese Patent Application Laid-Open No. 63-185759 and Japanese Utility Model Laid-Open No. 12-16916.
It is disclosed in Japanese Patent Publication No. 1 and the like.

[0003]

However, it is difficult to reduce the winding diameter of the sheet wound into a roll, and a large storage space is required when storing the wound sheet. In addition, the structure of the sheet winding device is complicated, the number of parts is large, and a large installation space is required.

[0004]

The invention according to claim 1 is
A V-shaped arm is provided, which is widened into a substantially V-shape toward the sheet discharging portion and is opposed to the sheet-discharging portion. A direction in which a roller is attached, a main roller having a small-diameter roller portion and a large-diameter roller portion and driven to rotate is attached to a bent portion of the V-shaped arm, and a sheet discharged from the sheet discharging portion is sent to the main roller side. A first belt which is rotationally driven to be wound between the first roller and the small-diameter roller portion, and in a direction in which the sheet sent to the main roller side by the first belt is sent to the second roller side. The second belt which is rotationally driven is wound between the second roller and the large diameter roller portion.

According to a second aspect of the invention, in the first aspect of the invention, an expansion angle adjusting mechanism for adjusting the expansion angle of the V-shaped arm is provided.

[0006]

According to the first aspect of the invention, the sheet discharged from the sheet discharge section is sent to the main roller side by the first belt and further sent to the second roller side by the second belt. Then, the sheet is wound into a roll by the feeding by the first belt and the second belt which are arranged in a substantially V shape, and the second roller is proportional to the diameters of the small diameter roller portion and the large diameter roller portion. Since the feeding speed of the belt is higher than the feeding speed of the first belt, the winding diameter of the wound sheet is small.

According to the second aspect of the invention, the expansion angle adjusting mechanism adjusts the expansion angle of the V-shaped arm, and
By performing this adjustment according to the material and the curl direction of the sheet discharged from the sheet discharge section, even if the material and the curl direction of the sheet are different, the winding of those sheets can be stably performed. .

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the invention described in claim 1 will be described with reference to FIG. First, FIG. 1 shows the entire structure of a diazo copying machine to which a sheet winding device according to the present invention is applied. An exposing section 2 is provided inside a copying machine main body 1. Is an exposure transparent cylinder 3 rotatably supported, and a belt 6 wound between a drive roller 4 and a plurality of guide rollers 5 and pressed against the outer peripheral surface of the exposure transparent cylinder 3. Is formed by.

On the front surface of the copying machine main body 1, there is provided an original drawing paper table 9 on which an original drawing paper 7 which is a sheet and a photosensitive paper 8 are placed in a superposed state. An insertion port 10 for inserting the photosensitive paper 8 in a superposed state is formed. A pair of paper feed rollers 11 and 12 and a guide plate 13 are provided from the insertion port 10 toward the exposure unit 2. Further, in the copying machine main body 1, a shift device 14 that shifts the original paper 7 and the photosensitive paper 8 that have passed through the exposure unit 2 in a superposed state, and an original paper 7 and the photosensitive paper 8 that are shifted by the shift device 14 Rotating plate for separation 1 for separating and
5, a pair of conveying rollers 17 and 18 for conveying the separated photosensitive paper 8 toward the developing section 16, guide plates 19 and 20, and a discharge roller for discharging the developed photosensitive paper 8 onto the copy paper tray 21 A pair 22 and a pair of transport rollers 24 for transporting the separated original paper 7 toward the sheet discharge unit 23 are provided. The shift device 14 is formed by a roller 14a that rotates at a peripheral speed substantially the same as the paper feed speed in the exposure section 2 and a roller 14b that rotates at a peripheral speed higher than the paper feed speed in the exposure section 2, one of which is provided. Roller 14a
Is in contact with the original paper 7 and the other roller 14b is in contact with the photosensitive paper 8.

Next, a V-shaped arm 25 is provided above the original drawing paper table 9 on the front side of the copying machine main body 1 so as to spread out in a substantially V-shape toward the sheet discharge portion 23 and face each other. The first roller 26 is rotatably attached to one end of the V-shaped arm 25, and the second roller 27 is rotatably attached to the other end of the V-shaped arm 25. A main roller 30 having a small-diameter roller portion 28 and a large-diameter roller portion 29 integrally formed is rotatably attached to the bent portion of the V-shaped arm 25. Is connected to a motor (not shown). The V-shaped arm 25 is formed integrally with the side plate 1a of the copying machine main body 1.

A first belt 32 is wound between the first roller 26 and the small diameter roller portion 28, and a second belt 32 is wound between the second roller 27 and the large diameter roller portion 29. The belt 33 is wound, and the first belt 32 and the second belt 33 are arranged in a substantially V shape. The first belt 32 is arranged at a position where the leading end of the original sheet 7 ejected from the sheet ejecting section 23 first comes into contact, and the first belt 32 is the original sheet ejected from the sheet ejecting section 23. 7 is driven to rotate in the direction of sending the main roller 30 to the main roller 30 side, while the second belt 33 transfers the original paper 7 sent to the main roller 30 side by the first belt 32 to the second roller 27 side. It is driven to rotate in the direction of feeding. When the feeding speeds of the first belt 32 and the second belt 33 are compared, the feeding speed of the second belt 33 is proportional to the diameters of the small diameter roller portion 28 and the large diameter roller portion 29. It is higher than the feeding speed of 32.

In such a structure, when the original drawing paper 7 and the photosensitive paper 8 are superposed and inserted through the insertion opening 10,
The original paper 7 and the photosensitive paper 8 are a paper feed roller pair 11,
It is conveyed to the exposure unit 2 by 12 and is fed between the exposure transparent cylinder 3 and the belt 6 in a superposed state. Then, by driving the belt 6, the transparent cylinder 3 for exposure is moved to the belt 6.
Exposure is performed while the original drawing paper 7 and the photosensitive paper 8 are sandwiched between the transparent cylinder 3 for exposure and the belt 6 and conveyed while being rotated integrally with.

After the exposure is finished, the original paper 7 and the photosensitive paper 8 are shifted by the shifting device 14, and are further separated by the rotation of the separating rotary plate 15. The separated photosensitive paper 8 is conveyed to the developing section 16 by the pair of conveying rollers 17 and 18, is developed in the developing section 16, and is then discharged onto the copy paper tray 21 by the discharging roller pair 22. on the other hand,
The original paper sheet 7 after being separated is conveyed toward the sheet discharging portion 23 by the pair of conveying rollers 24, and the sheet discharging portion 23
Emitted from.

Original paper sheet 7 discharged from the sheet discharge section 23
When the leading end of the sheet comes into contact with the first belt 32, the sheet is sent to the main roller 30 side as the first belt 32 is rotationally driven. Furthermore, the main belt 3
The leading end of the original drawing paper 7 sent to the 0 side contacts the second belt 33, and the original drawing paper 7 is sent to the second roller 27 side as the second belt 33 is rotationally driven. Then, the original paper 7 is wound into a roll shape as illustrated by the feeding by the first belt 32 and the second belt 33 arranged in a substantially V shape.
Further, the feeding speed of the second belt 33 is higher than the feeding speed of the first belt 32, and the portion of the original drawing paper 7 in contact with the second belt 33 is larger than the portion in contact with the first belt 32. Since it is fed at a high speed, the winding diameter of the original paper 7 wound in a roll becomes small. Therefore, the original paper 7 rolled up in a roll can be easily handled and the storage space can be reduced.

Further, since the small diameter roller portion 28 and the large diameter roller portion 29 are formed on one main roller 30, the number of parts is reduced and the structure is simplified, and the V-shaped arm 25 and the first and second arms are formed. The installation space for installing the belts 32, 33 and the like becomes smaller.

Next, a first embodiment of the invention described in claim 2 will be described with reference to FIG. The same parts as those described in FIG. 1 are designated by the same reference numerals, and the description thereof will be omitted (the same applies hereinafter). A V-shaped arm 34 is provided above the original paper table 9 on the front side of the copying machine main body 1 so as to open toward the sheet discharge portion 23 in a substantially V-shape and face it.
The V-shaped arm 34 is formed by rotatably connecting the first arm 34a and the second arm 34b on the rotation shaft 31 of the main roller 30. The first roller 26 is rotatably attached to the tip of the first arm 34a, and the second roller 2 is attached to the tip of the second arm 34b.
7 is rotatably attached.

The rotary shaft 27a of the second roller 27
Is supported by the side plate 1a of the copying machine main body 1, and the second arm 34b is rotatably provided with the rotating shaft 27a as a fulcrum. Then, an arc-shaped elongated hole 35 that serves as a guide when the second arm 34b is rotated around the rotation shaft 27a is formed in the side plate 1a, and the second arm 3 is formed.
A tightening bolt 36 fitted in the elongated hole 35 is attached to the tip of 4b. In addition, the first arm 34a
On the side of the connecting portion between the first arm 34a and the second arm 34b, the arc-shaped elongated hole 37 centered on the rotation shaft 31 is provided.
The second arm 34b is provided with a tightening bolt 38 fitted in the elongated hole 37.
An expansion angle adjusting mechanism 39 for adjusting the expansion angle of the V-shaped arm 34 is formed by the tightening bolt 38 and the like.

In such a structure, the tightening bolt 38
It is possible to rotate the first arm 34a around the rotation shaft 31 by loosening it, and by tightening the tightening bolt 38 after rotating the first arm 34a to an arbitrary position, the V-shaped arm 3
The spread angle of 4 can be adjusted. And this V
By appropriately adjusting the expansion angle of the V-shaped arm 34,
Even if there is a difference in the material, curl direction, etc. of the original drawing paper 7 discharged from the sheet discharging unit 23, the original drawing paper 7 can be wound stably.

Further, by loosening the tightening bolt 36, the entire V-shaped arm 34 can be rotated around the rotary shaft 27a, and this rotation causes the V-shaped arm 34 to rotate.
It is possible to adjust the expansion direction of the. And by adjusting this expansion direction together with the adjustment of the expansion angle,
The original paper 7 can be wound more stably.

Next, a second embodiment of the invention according to claim 2 will be described with reference to FIGS. 3 and 4. Above the document table 9 on the front side of the copying machine main body 1, a sheet discharging unit 2 is provided.
A V-shaped arm 4 that is widened in a substantially V-shape toward
0 is provided, and the V-shaped arm 40 is formed by rotatably connecting the first arm 40a and the second arm 40b on the rotation shaft 31 of the main roller 30. The first roller 26 is rotatably attached to the tip of the first arm 40a, and the second roller 27 is rotatably attached to the tip of the second arm 40b.

The rotating shaft 31 is supported by a protruding portion 1b protruding from the side plate 1a of the copying machine main body 1, and the protruding portion 1b has an arc-shaped elongated hole 41 centered on the rotating shaft 31. , 42 are formed. Then, the tightening bolt 4 fitted in the elongated hole 41 is attached to the first arm 40a.
3 is attached to the second arm 40b, and the elongated hole 4 is attached to the second arm 40b.
A tightening bolt 44 fitted in 2 is attached, and the expansion angle adjustment for adjusting the expansion angle and the expansion direction of the V-shaped arm 40 by these elongated holes 41, 42 and the tightening bolts 43, 44. A mechanism 45 is formed.

In such a structure, the tightening bolt 43
It is possible to rotate the first arm 40a around the rotary shaft 31 by loosening it, and to rotate the second arm 40b around the rotary shaft 31 by loosening the tightening bolt 44. Therefore, the tightening bolts 43, 4
By loosening 4 and rotating the first and second arms 40a and 40b, the expansion angle and the expansion direction of the V-shaped arm 40 can be adjusted. And this V-shaped arm 4
By properly adjusting the expansion angle and the expansion direction of 0, even if there is a difference in the material, the curl direction, etc. of the original paper 7 discharged from the sheet discharge unit 23, the original paper 7 can be stably wound. It

[0023]

As described above, according to the present invention, the first roller is attached to one of the tip ends of the V-shaped arms which are spread in a substantially V-shape toward the sheet discharging portion and face each other as described above. Attach the second roller to the other end of the character arm,
A main roller having a small-diameter roller portion and a large-diameter roller portion, which is driven to rotate, is attached to the bent portion of the V-shaped arm, and the sheet discharged from the sheet discharge portion is driven to rotate in the direction of sending to the main roller side. The first belt is wound around the first roller and the small-diameter roller portion, and is rotationally driven in a direction in which the sheet sent to the main roller side by the first belt is sent to the second roller side. Since the second belt is wound around the second roller and the large-diameter roller portion, the sheet discharged from the sheet discharging portion is fed by the first belt and the second belt arranged in a substantially V shape. It will be wound into a roll by
Since the feeding speed of the second belt, which is wound around the large-diameter roller portion and is driven to rotate, is higher than the feeding speed of the first belt, which is wound around the small-diameter roller portion and driven to rotate, the winding diameter of the sheet is reduced. Therefore, the handleability of the rolled-up sheet can be improved and the storage space of the rolled-up sheet can be saved. Furthermore, one main roller and a large-diameter roller portion can be used. Since the first and second belts are driven by forming the diameter roller portion, the structure is simplified and the installation space for these V-shaped arms and the first and second belts is reduced. It has the effect of being able to.

According to a second aspect of the invention, in the first aspect of the invention, since the expansion angle adjusting mechanism for adjusting the expansion angle of the V-shaped arm is provided, the expansion of the V-shaped arm by the expansion angle adjusting mechanism is provided. By adjusting the opening angle according to the material and curl direction of the sheet discharged from the sheet discharge part, even if the material and the curl direction of the sheet are different, the winding of those sheets can be stabilized. It has the effect that it can be performed.

[Brief description of drawings]

FIG. 1 is a vertical sectional side view showing an embodiment of the invention described in claim 1.

FIG. 2 is a vertical sectional side view showing a first embodiment of the invention according to claim 2;

FIG. 3 is a vertical sectional side view showing a second embodiment of the invention according to claim 2;

4 is a cross-sectional view taken along the line AA in FIG.

[Explanation of symbols]

 7 Sheet 23 Sheet Discharging Section 25, 34, 40 V-Shaped Arm 26 First Roller 27 Second Roller 28 Small Diameter Roller Section 29 Large Diameter Roller Section 30 Main Roller 32 First Belt 33 Second Belt 39, 45 Expansion Angle Adjustment Mechanism

Claims (2)

[Claims] 1. A V-shaped arm is provided which is spread in a substantially V-shape toward a sheet discharging portion and is opposed to the sheet discharging section. A first roller is attached to one end of the V-shaped arm and the other of the V-shaped arms is attached. A second roller is attached to the front end portion, a main roller having a small diameter roller portion and a large diameter roller portion and driven to rotate is attached to the bent portion of the V-shaped arm, and the sheet discharged from the sheet discharge portion is used as the main roller. A first belt, which is rotationally driven in the direction of sending to the roller side, is wound between the first roller and the small diameter roller portion, and the sheet sent to the main roller side by the first belt is the second roller. A sheet winding device characterized in that a second belt, which is rotationally driven in a feeding direction, is wound between the second roller and the large-diameter roller portion. 2. The sheet winding device according to claim 1, further comprising an expansion angle adjusting mechanism for adjusting an expansion angle of the V-shaped arm.