JPS6241153A - Sheet taking-up device - Google Patents

Abstract

PURPOSE:To provide a take-up device for preventing efficiently completely sheets from disordered take-up by providing a tension roller for extending the fed sheet with its own weight. CONSTITUTION:In a paper take-up device 1 a recording blank 2 is fed out of a feed roller 3 and taken up by a take-up roller 4 through a tension roller 5, first and second intermediate rollers 6, 7. When the recording blank 2 is deviated left or right between the feed roller 3 and the take-up roller 4, a tension roller 5 vertically moving as it is under the horizontal state will be inclined. Displacement detector 12a, 12b detect normally the height positions of both left and right ends of the tension roller 5 and the detecting signals are sent to a calculation processing unit 15. A brake roller control section 16 lowers the left or right side brake rollers 13a, 13b in response to a predetermined amount control signal from said processing unit 15 to return the tension roller 5 to the horizontal state.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a sheet winding device for evenly winding up a sheet of paper or the like fed out from a feeding section with both ends aligned.

[Prior Art] Conventionally, as a winding device for evenly winding up a sheet sent out from a feeding section with both ends aligned, there is a paper winding device 20 shown in FIG. 2, for example.

A paper winding device 20 shown in the figure is a device for winding up paper 22 sent out from a feeding roller 21 serving as a feeding section.

This winding device 20 has a tension roller 24, a first intermediate roller 25, and a second intermediate roller 26 between a feed roller 21 and a winding roller 23.

The tension roller 24 is attached at both longitudinal ends to guide members 27a and 27b having a predetermined length so as to be able to slide vertically 11J, and stretches the paper 22 sent out from the feed roller 21 by its own weight. .

In this way, the paper 2 sent out from the feed roller 21
2 is strongly wound around the winding roller 23 by the rotational frictional force of the tension roller 24, the first intermediate roller 25, and the second intermediate roller 26.

However, there is a problem with such a winding device 20.

This may occur if the initial settings were incorrect when winding the paper 22 around the take-up roller 23 in the first place, or if the initial settings were good (but the paper 22 fed from the feed roller 21 is fed out with a bias to either the left or right side). In such cases, one end of the paper 22 is strongly wound up by the take-up roller 23, and the other end of the paper 22 is taken up loosely and taken up by the take-up roller 23. Irregularities occur at both ends of the paper 22.

As a device for correcting such uneven winding, as shown in the figure, a pair of moving devices 28a and 28b are provided in the winding device 20, which are movable parallel to the feeding direction of the paper 22.
A moving device 28a is provided.

Attach both left and right ends of the second intermediate roller 26 to 28b,
Some move devices 28a and 28b are used to shift the left and right positions of the second intermediate roller 26 to prevent sheets from being misaligned.

[Problems to be Solved] However, in such a conventional device for preventing uneven winding of paper, uneven winding, inclination of the tension roller 5, etc. can be detected by visual observation by the operator. The operator manually moves the moving devices 28a, 28 each time.
b, and shift the positions of both the left and right ends of the intermediate roller 26 to correct the uneven winding, which not only makes the correction incomplete, but also places an excessive burden on the operator, resulting in inefficiency. There is a problem with being objective.

[Objective of the Invention] The object of the present invention is to solve the above-mentioned conventional problems, and to eliminate visual observation and manual operation by the operator, to be efficient, and to completely prevent uneven winding. An object of the present invention is to provide a sheet winding device that can take up sheets.

[Means for Solving the Problems] The means of the present invention for achieving such an object includes at least a feeding unit for feeding out sheets of paper, etc., and a mechanism for stretching the sheets fed from the feeding unit by their own weight. a tension roller, an intermediate roller that sends the sheet stretched by the tension roller to a winding section, a detector that detects the inclination of the tension roller, and a pair that applies a load to the left end side and right end side of the sheet, respectively. a braking member; and a processing device that operates one of the braking members in a direction to correct the inclination in response to a signal from the detector.

[Function] The sheet winding device configured as described above maintains a horizontal state at a constant height when the sheet moves to either the left side or the right side between the feeding section and the winding section M<. The right end or left end of the tension roller will drop down, and the tension roller will be in a non-hydraulic state. A displacement detector detects the vertical displacement of this tension roller on both the left and right sides.
This detection signal is sent to the processing device. Then, the processing device sends a control signal to the braking member, and the braking member applies a load to the left end side or the right end side of the sheet to slow down the feeding speed of the sheet on the left end side or the right end side of the sheet. As a result, the tension roller returns to the horizontal state, and the uneven winding at the winding section is automatically corrected.

[Embodiment] Next, an embodiment of a sheet winding device according to the present invention will be described in detail with reference to the drawings.

FIG. 1 shows a perspective view of a paper winding device 1. As shown in FIG.

A paper winding device 1 shown in the figure is a winding device 1 for winding up a recording paper 2 that has been recorded on a recording stand of a track test tunkasa, etc.
The recording paper 2 is fed out from a feeding roller 3 serving as a feeding section in proportion to the vehicle speed.

This paper winding device 1 includes a tension roller 5, a first intermediate roller 6, and a second intermediate roller 7 between a feed roller 3 and a winding roller 4 as a winding section.

A pair of guide members 8a and 8b are arranged on the left and right sides of the tension roller 5 in the longitudinal direction, and the mounting portions 5a + 5b at both left and right ends of the tension roller 5 are attached to the guide members 8a.
+ 8b, 1- is slidably mounted in the upward direction. The recording paper 2 sent out from the feed roller 3 is stretched by the weight of the tension roller 5 and sent to the first intermediate roller 6 and the second intermediate roller rough.

Furthermore, since the recording paper 2 is sent out from the feed roller 3 as a feed section in proportion to the vehicle speed, it is necessary to adjust the drive of the take-up motor 9 that rotates the take-up roller 4. Two limit switches to and ti are provided at a portion and a lower portion of the member 8a.

The limit switch 10 is for stopping the winding remoter 9 when the tension roller 5 attached to the guide members 8a, 8b moves 1 unit η1 to the upper part of the guide members 8a, 8b and reaches its upper limit. , the limit switch 11 is such that the tension roller 5 is connected to the guide member 8 a +
8b, and when it reaches that limit, the winding motor 9 is started to restart the winding.

In this way, the recording paper 2 is guided by the guide member 8a +
The sheet is stretched by the weight of the tension roller 5 that moves upward between the upper portions of the sheet 8b, passes through the first intermediate roller 6 and the second intermediate roller 7, and is wound onto the winding roller 4.

Now, this paper winding device 1 includes a device for correcting uneven winding of the winding roller 4.

This straightening device has left and right mounting portions 5 of the tension roller 5.
Displacement amount detectors 12a and 12b (shown by broken lines) provided at a and 5b, and a pair of brake rollers 13 as braking members arranged at both ends of the second intermediate roller 7 in the longitudinal direction.
a, 13b, and a processing device 14 that controls the operation of the brake rollers 13a, 13b based on detection signals from the displacement amount detectors 12a, 12b.

Here, the displacement amount detectors 12a and 12b are constituted by, for example, optical sensors, and the guide members 8a + 8b
It reads the marks 8 C98d provided at regular intervals on each side, and uses the detection signal to detect the height position at both left and right ends of the tensilon roller 5, and sends this detection signal to the arithmetic processing unit 15 of the processing unit 14. The brake rollers 13a and 13b are arranged above the recording paper 2 moving on the second intermediate roller 7,
The drive units lea and 1E3b independently move up and down to apply a load to the left end or right end of the recording paper 2.

The drive devices lea and 16b are connected to the brake roller control section 17 of the processing device 14 and are controlled according to control signals from the arithmetic processing device 15.

In the paper winding device 1 configured in this manner, the recording paper 2 is sent out from the feed roller 3, and the recording paper 2 is sent out from the tension roller 5. It passes through the first intermediate roller 6 and the second intermediate roller 7 and is wound onto the winding roller 4 .

Since the recording paper 2 is fed out at a speed proportional to both speeds, the tension roller 5 moves vertically, and the tension roller 5 moves to the guide member 8a.
, 8b, 1., When the limit is reached, the limit switch lO
stops the winding motor 9 and starts the winding process.
When the tension roller 5 reaches the lower limit of the guide members 8a, 8b, the limit switch 11 starts the winding motor 9 to open the winding p+.

Now, if the recording paper 2 is biased to either the left or right between the feed roller 3 and the take-up roller 4, it is corrected by a correction device.

First, if the recording paper 2 is biased to either the left or right between the feed roller 3 and the take-up roller 4, it is corrected by a correction device.

First, if the recording paper 2 is deviated to the left or right between the feed roller 3 and the take-up roller 4, the recording paper 2 is
The tension roller 5, which is moving downward L, will be tilted. That is, when the recording paper 2 shifts to the left side, the right side of the recording paper 2 stretched by the tension roller 5 becomes slack, and the right end side of the tension roller 5 descends. On the other hand, if the recording paper 2 shifts to the right side, the tension roller 5
The left side of the recording paper 2 that is being stretched becomes slack, and the left end side of the tension roller 5 is lowered.

The displacement of the height position at both left and right ends of the tension roller 5 is determined by the following:
The displacement amount detection units 1412a and 1412b are respectively detected.

This displacement detection 7! Al 2 a and 12 b constantly detect the height positions at both the left and right ends of the 7''7 roller 5 , and this detection signal is sent to the arithmetic processing unit 15 .

The arithmetic processing unit 15 calculates a difference value including the sign of these position signals based on the detection signals input from the displacement amount detectors 12a and 12b, and corresponds to the sign according to the difference value including the sign. In addition, the control unit information corresponding to the value is transmitted to the brake roller control unit 16.

Brake roller control i<te is determined by the arithmetic processing unit 15
According to the predetermined floor control (+fi 6'), a predetermined amount of control signal is sent to the left drive device 14a, 14b depending on the sign of the difference value. The brake rollers 13a, 13b are lowered.Then, the brake rollers 13a, 13b apply a load to the left or right side of the recording paper 2 moving on the second intermediate roller 71-, causing the recording paper 2 to move to the left or right. This load is applied until the tension roller 5 returns to a horizontal state.

When the recording paper 2 moves to the left side, the left brake roller 13a descends to apply a load to the left side of the recording paper 2, slowing down the moving speed of the left side of the recording paper 2, and lowering the recording paper 2. 2 moves to the right side, the brake roller 13b on the right side descends to apply a load to the right side of the recording paper 2, thereby slowing down the moving speed of the right side of the recording paper 2.

In this way, the misalignment of the recording paper 2 is automatically corrected, and uneven winding of the left and right windings by the winding roller 4 is prevented.

In the embodiment, a brake roller is disposed on one side of the second intermediate roller to brake the moving speed from one side, but the brake may be braked from diagonally above or from the side.

Furthermore, in the embodiment, the displacement amount is detected by displaying the mark 11 using an optical sensor, but the detection of the displacement amount is not limited to this (for example, by engaging a lever or the like in the groove and counting) Alternatively, a magnet may be counted using a magnet and a reed switch, or a rotary encoder may be used.

Further, the braking member is not limited to a roller-shaped one, but may be a band-shaped one.

The location of the first moving member is not limited to the second intermediate roller, but may be located on the first intermediate roller, and when three or more intermediate rollers are provided, any intermediate roller It may be placed in Furthermore, a plurality of braking members may be arranged at a plurality of locations.

The sheet is made of vinyl or cellophane.

There are fibers, aluminum foil, thin copper sheets, etc.

[Effects of the Invention As is clear from the explanations in section H below, the sheet winding device of the present invention includes at least a feeding section that sends out a sheet of paper, etc., and a mechanism that stretches the sheet sent from the feeding section by its own weight. a tension roller, an intermediate roller that sends the sheet stretched by the tension roller to a winding section, a detector that detects the inclination of the tension roller, and a pair of rollers that apply loads to the left end side and the right end side of the sheet, respectively. Since it includes a braking member and a processing device that operates one of the braking members in a direction to correct the inclination in response to a signal from the detector, visual observation and manual operation by an operator can be eliminated. It is efficient and can completely prevent irregularities in H winding.

[Brief explanation of drawings]

FIG. 1 is a perspective view showing an embodiment of a sheet winding device according to the present invention, and FIG. 2 is a perspective view showing a conventional paper winding device. 1-... Paper winding device, 2... Recording paper, 3...
...Feed roller, 4-...Take-up roller, 5...
- Tension roller, 6...first intermediate roller, 7
...Second intermediate roller, 9.10...Limit switch, 12a, 12b...Displacement detector, 13
a, 13 b-brake roller, 15-... arithmetic processing unit, 17... brake roller control unit.

Claims (2)

[Claims] (1) A feeding unit that feeds out at least a sheet of paper or the like;
a tension roller that stretches the sheet sent from the feeding section by its own weight; an intermediate roller that sends the sheet stretched by the tension roller to a winding section; a detector that detects the inclination of the tension roller; A pair of braking members that respectively apply a load to the left end side and right end side of the vehicle, and a processing device that operates one of the braking members in a direction to correct the inclination in response to a signal from the detector. A sheet winding device for (2) The detector is composed of a pair of displacement detectors that detect the displacement at the left end and the right end, and the tension roller is provided with mounting portions for the displacement detectors at both ends in the longitudinal direction, and this mounting portion is It is attached to a guide member of a predetermined length so as to be slidable in the vertical direction, the braking member is a pair of brake rollers, and the processing device consists of an arithmetic processing unit and a brake roller control section. A sheet winding device according to claim 1.