JP4308122B2 - Continuous paper winding device and continuous paper winding method - Google Patents

Description

  The present invention relates to a continuous paper winding device and a continuous paper winding method for winding continuous paper issued from a printer, and more particularly, to a continuous paper winding device having tension applying means for applying tension (tension) to continuous paper issued from a printer, and The present invention relates to a continuous paper winding method.

  In the continuous paper post-processing apparatus that winds the continuous paper issued from the printer, the continuous paper issued from the printer is configured to be wound around a rotating take-up shaft. If the tension applied to the paper is too small, the continuous paper winding will loosen, making it difficult to produce a good-looking take-up roll, or the continuous paper will float at the printer's outlet, causing printing errors such as misalignment and overlap. If the tension is large, there is a possibility that the print may be extended or the paper may run out. Therefore, it is necessary to apply an appropriate tension to the continuous paper issued from the printer.

  Therefore, a tension arm (buffer arm) having one end attached to the arm shaft so as to be swingable and a tension roller that contacts the continuous paper from above is provided on the upstream side of the take-up shaft, The tension arm raises and lowers in proportion to the difference between the issue speed from the printer and the take-up speed, thereby giving an appropriate tension to the continuous paper issued from the printer.

  The rotation of the winding shaft is controlled by the position of the tension arm. For example, when the tension arm reaches the bottom, the winding shaft starts rotating, and when the top reaches the top, the winding shaft stops rotating. OFF control and rotational speed control for changing the rotational speed of the take-up shaft for each position of the tension arm so that the tension arm becomes the target position are performed (for example, see Patent Document 1).

However, when the ON / OFF control is performed according to the position of the tension arm as in the prior art, or when the rotational speed control is performed to change the rotational speed of the winding shaft for each tension arm position, the winding shaft rotates. Changes in the winding speed because the speed is fixed, the rotation speed of the winding shaft is set by a human switch with a manual switch, and the rotation speed for each position of the tension arm is fixed. Can not cope with. That is, as the winding of the continuous paper on the winding shaft proceeds, the winding diameter of the wound continuous paper increases, and the winding speed corresponding to the rotational speed of the winding shaft increases. Since the rotation speed of the take-up shaft is set uniformly regardless of the take-up diameter, when the take-up speed corresponding to the rotation speed of the take-up shaft is increased, the printer issues a continuous paper issue speed. As a result, the take-up speed becomes too fast, and an excessive tension is applied to the continuous paper. The continuous paper take-up diameter on the shaft becomes large, so even if the take-up shaft stops rotating when the tension arm is positioned at the top, it becomes difficult to stop immediately due to inertia. Tension arm collides to the upper limit of the swinging range, paper breakage there is a problem that may occur.
JP 2003-261121 A

  The present invention has been made in view of such a problem, and an object of the present invention is to take up the take-up shaft corresponding to the rotation speed of the take-up shaft by increasing the take-up diameter of the continuous paper around the take-up shaft. Even when the speed is increased, it is possible to apply an appropriate tension to the continuous paper, and it is possible to prevent the print extension and the paper from being cut off due to the tension applied to the continuous paper being too large. Even if rotation of the take-up shaft is stopped due to inertia due to an increase in the take-up diameter of the continuous paper on the shaft, even if it becomes difficult to stop immediately, the upper limit of the tension arm swing range is reached. An object of the present invention is to provide a continuous paper winding device and a continuous paper winding method capable of preventing collision and cutting out of paper.

In order to solve the above problems, the present invention has the following configurations.
The gist of the invention of claim 1 is a continuous paper winding device provided with tension applying means for applying tension to the continuous paper on the upstream side of a winding shaft for winding continuous paper issued from a printer, A position detection sensor that detects the tension applying means at a plurality of detection positions within a movement range of the tension applying means, and the tension applying means moves between the detection positions while the winding shaft is rotated. Arm position recognizing means for measuring the time required for the movement as the movement time between the sensors, and a rotation speed setting means for setting the rotation speed of the winding shaft based on the movement time between the sensors measured by the arm position recognizing means; Motor drive means for rotating the take-up shaft at a rotation speed set by the rotation speed setting means. It consists in the continuous paper winding device as symptoms.
According to a second aspect of the present invention, the rotational speed setting means accelerates and sets the rotational speed when the inter-sensor movement time is larger than a predetermined reference upper limit time, 2. The continuous paper winding device according to claim 1, wherein when the movement time between the sensors is shorter than a predetermined reference lower limit time, the rotational speed is set by decelerating.
According to a third aspect of the present invention, there is provided a tension arm in which one end of the tension applying means is swingably attached to the arm shaft, and a tension roller that contacts the continuous paper is attached to the other end. It exists in the continuous paper winding apparatus of Claim 1 or 2 characterized by the above-mentioned.
According to a fourth aspect of the present invention, the arm position recognizing unit measures the movement time between the plurality of sensors, and the rotation speed setting unit performs measurement between the plurality of sensors measured by the arm position recognizing unit. 4. The continuous paper winding device according to claim 1, wherein a rotation speed of the winding shaft is set based on a moving time.
The gist of the invention described in claim 5 is a continuous paper winding method in which tension applying means for applying tension to the continuous paper is provided upstream of a winding shaft for winding the continuous paper issued from a printer. The tension applying means is detected at a plurality of detection positions within the movement range of the tension applying means, and the tension applying means is required to move between the plurality of detection positions while the winding shaft is rotated. Time is measured as a movement time between sensors, a rotation speed of the winding shaft is set based on the measured movement time between sensors, and the winding shaft is rotated at the set rotation speed. There is a continuous paper winding method.

  The continuous paper winding device of the present invention measures the time required for the tension applying means to move between a plurality of detection positions as the movement time between the sensors, and sets the rotation speed of the winding shaft based on the measured movement time between the sensors. Even if the take-up speed corresponding to the rotation speed of the take-up shaft is increased by increasing the take-up diameter of the continuous paper to the take-up shaft, the actual take-up speed is reduced. Since the rotation speed of the take-up shaft can be changed accordingly, an appropriate tension can be applied to ordinary continuous paper, and the print extension and paper outage caused by the excessive tension applied to the continuous paper can be prevented. When the winding diameter of the continuous paper on the take-up shaft is increased, it is difficult to stop immediately due to inertia even if the take-up shaft stops rotating. Also, to prevent the collision of the upper limit of the swinging range of the tension arm, an effect that it is possible to prevent the paper out.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

  FIG. 1 is a schematic perspective view showing a configuration of an embodiment of a continuous paper winding device according to the present invention, and FIG. 2 is a schematic diagram for explaining the operation of a tension arm shown in FIG. FIG. 4 is a schematic diagram showing a sensor mechanism attached to the arm shaft shown in FIG. 1, and FIG. 4 is a block diagram showing a configuration of a control unit in the embodiment of the continuous paper take-up device according to the present invention.

  In this embodiment, a label continuum in which labels are temporarily attached to a belt-like mount at intervals, and a label is continuous at a perforation, but connected to a printer that prints on a continuous paper such as a label continuum or belt-like paper. 1 and FIG. 2, a winding shaft 2 for winding the continuous paper 1 issued from the printer, and a winding shaft 2 for winding the continuous paper 1 issued from the printer. The first guide roller 3 and the second guide roller 4 that are arranged on the upstream side and guide the conveyance of the continuous paper 1, and the first guide roller 3 and the second guide roller 4 that are arranged on the upstream side of the winding shaft 2, A tension arm 5 which is a tension applying means for applying tension to the continuous paper 1 in contact with the continuous paper 1 spanned between them. With Together they are, the tension roller 52 abuts from above the paper web is attached to the other end.

  In the present embodiment, as shown in FIG. 2, the tension arm 5 abuts the continuous paper 1 spanned between the first guide roller 3 and the second guide roller 4 from above, and The tension arm 5 (tension roller 52) is configured to be tensioned by an urging means such as its own weight or a spring that urges the tension arm 5 downward (clockwise in FIG. 2). Is increased and decreased in proportion to the difference between the issue speed of the continuous paper 1 from the printer and the take-up speed of the take-up shaft 2. Reference numeral 6 shown in FIG. 2 is a paper tube for winding the continuous paper 1.

The position of the tension arm 5, as shown in FIG. 2, are detected at a plurality of positions (n) from the detection position A ₁ is a top to a bottom detection position A _{n (n} = 2 or more) It is configured as follows. In the present embodiment, it is configured to detect the position of the tension arm 5 at four points from the detection position A ₁ is a top detector to the position A ₄ is a bottom, adjacent the detection position (A ₁ , A ₂ , A ₃ , A ₄ ) (the movement distances L ₁ , L ₂ , L ₃ ) of the tension roller 52 are set to the same distance. The uppermost part and the lowermost part do not mean the upper limit and the lower limit of the swing range of the tension arm 5, but mean the uppermost part and the lowermost part in the position detection of the tension arm 5, respectively.

  For example, referring to FIG. 3, the detection of the position of the tension arm 5 is a disc-shaped sensor plate 53 that is assembled to the arm shaft 51 and rotates as the tension arm 5 swings, and a peripheral portion of the sensor plate 53. This is performed by the first position detection sensor 7 and the second position detection sensor 8 which are arranged at different positions in the movement path of the first groove portion 54 and the second groove portion 55 formed in the above. In addition, as the first position detection sensor 7 and the second position detection sensor 8, an optical sensor such as a light reflection sensor or a light transmission sensor may be used, or other sensors such as a magnetic sensor may be used. In the present embodiment, when the first groove portion 54 and the second groove portion 55 come to the positions of the first position detection sensor 7 and the second position detection sensor 8, respectively, the first position detection sensor 7 and the second position detection sensor are detected. Assume that the sensor 8 is turned on.

In FIG. 3 (a), in which to position the tension arm 5 at the detection position A ₁ is a top, the second position detecting sensor 8 is in the OFF state, the first position detection sensor 7 is ON by the first groove 54 the / OFF is the fact, the tension arm 5 can be detected that has reached the detection position a ₁ is a top.

In FIG. 3B, the tension arm 5 is located at the detection position A ₂ below the uppermost part, the first position detection sensor 7 is ON, and the second position detection sensor 8 is the second position. by being turned oN / OFF by the groove 55, it is possible to detect that the tension arm 5 has reached the detection position a _2.

Further, in FIG. 3 (c), the detection position A ₃ in the lower A ₂ is located tension arm 5, the second position detecting sensor 8 is in the state ON, the first position detection sensor 7 is first by being turned oN / OFF by the groove 54, it is possible to detect that the tension arm 5 has reached the detection position a _3.

Further, in FIG. 3 (d), the tension arm 5 at the detection position A ₄ at the bottom is located at a first position detecting sensor 7 is in OFF state, the second position detecting sensor 8 and the second groove part 55 by being turned oN / OFF, it is possible to detect that the tension arm 5 has reached the detection position a ₄ at the bottom.

  Referring to FIG. 4, the control unit that controls the rotation speed of the winding shaft 2, that is, the winding speed, is based on the ON / OFF state of the first position detection sensor 7 and the second position detection sensor 8. Arm position recognition unit 11 for recognizing the position, rotation speed setting unit 12 for setting the rotation speed of winding shaft 2, and winding at the rotation speed set by rotation speed setting unit 12 by driving winding motor 14 The motor driving unit 13 rotates the shaft 2.

Arm position recognizing section 11 recognizes that it has reached the detection position A ₁ is a top, outputs a top detection signal of the rotational speed setting unit 12 and the motor drive unit 13, the detection position A is a bottom _When it is recognized that the value reaches ₄ , the lowest detection signal is output to the motor drive unit 13. The arm position recognition unit 11, while the tension arm 5 is moved from the detection position A ₄ is a bottom to the detection position A ₁ is a top, i.e. during driving of the winding motor 14, the first position detection sensor 7 and the second position detection sensor 8 recognize the arrival of the tension arm 5 that swings based on the ON / OFF state (A ₁ , A ₂ , A ₃ , A ₄ ), and move to the adjacent detection position. The movement time between sensors required for the movement is measured and output to the rotation speed setting unit 12.

  The rotation speed setting unit 12 sets the rotation speed by comparing the inter-sensor movement time input from the arm position recognition unit 11 with a predetermined reference upper limit time and reference lower limit time, and sets the rotation speed. To the motor drive unit 13. When a plurality of inter-sensor movement times are input, an average inter-sensor movement time of the input plurality of inter-sensor movement times is calculated, and an average inter-sensor movement time and a predetermined reference upper limit time and The reference lower limit time is compared.

  When the lowermost detection signal is input from the arm position recognizing unit 11, the motor driving unit 13 drives the winding motor 14 at the rotation speed set by the rotation speed setting unit 12 and from the arm position recognizing unit 11 to the lowest position. When the upper detection signal is input, the driving of the winding motor 14 is stopped.

Next, the operation of the present embodiment will be described in detail with reference to FIG.
FIG. 5 is a flowchart for explaining the operation of the embodiment of the continuous paper take-up device according to the present invention.

When a winding start is instructed by a power button or an input switch (not shown), the motor driving unit 13 stands by in a state where the winding motor 14 is stopped (step A1), and the arm position recognition unit 11 is a tension arm. 5 monitors the arrival of the detection position (step A2), the tension arm 5 issue is the start of the continuous paper 1 from the printer is lowered, monitor the arrival of the bottom of the detection position a ₄ of the tension arm 5 (Step A3).

When the tension arm 5 reaches the detection position A ₄ of the lowermost arm position recognition unit 11 outputs a bottom detection signal to the motor drive unit 13, the motor driver 13 for bottom detection signal is input, the winding The driving of the take-up motor 14 is started, and the take-up shaft 2 is rotated at the set rotation speed set by the rotation speed setting unit 12 (step A4). It is assumed that a predetermined initial rotation speed is set in the rotation speed setting unit 12 at the start of winding.

Next, arm position recognizing section 11, while the tension arm 5 is moved from the detection position A ₄ is a bottom to the detection position A ₁ is a top, i.e. during driving of the winding motor 14, the tension arm 5 monitoring the arrival of the detection position (step A5), measuring the tension arm 5 reaches the detection position, the sensor between travel time S _m is the travel time of the tension arm 5 to the current detection position from the previous detection position (Step A6), and outputs the measured inter-sensor movement time _Sm to the rotational speed setting unit 12. Measurement of moving time S _m between sensor is performed until the tension arm 5 reaches the detection position A ₁ of the top (step A7), m with respect to the detected position of the n points (n-1) pieces of inter-sensor The travel time _Sm will be measured. In the case of this embodiment, the detection position of four points _{(A 1, A 2, A} 3, A 4) with respect to the time movement between the sensor from the detection position _{A 4} at the bottom to the detection position _{A 3} S _3, three sensors between travel time of the sensor between travel time S ₁ from the sensor between the travel time from the detection position a ₃ to the detection position a ₂ S ₂ and the detection position a ₂ to the detection position a ₁ of the top S _m Is measured.

When the tension arm 5 reaches the detection position A ₁ of the uppermost arm position recognition unit 11 outputs a top detection signal of the rotational speed setting unit 12 and the motor driving portion 13, the top detection signal is inputted motor The drive unit 13 stops driving the take-up motor 14 (step A8), and the rotational speed setting unit 12 to which the uppermost detection signal is input moves between the m sensors that are input from the arm position recognition unit 11. time _{S m} average between sensors moving time _S a of _{(S a = ΣS m / m} ) is calculated (step A9).

Next, the rotation speed setting unit 12 determines whether or not the calculated average inter-sensor movement time S _a is longer than _a predetermined reference upper limit time T ₁ (step A10), and the average inter-sensor movement time S _a. There is greater is than the reference upper limit time T ₁ of predetermined set rotational speed speed change amount to accelerate are predetermined to (step A11), the flow returns to step A2. If the calculated average inter-sensor moving time S _a is greater than the reference upper limit time T ₁ a predetermined means that it has increased more slowly than the tension arm 5 is assumed, the continuous paper from the printer The winding speed to the winding shaft 2 is slower than the issue speed of 1. Therefore, by accelerating the set rotational speed by a predetermined speed change amount, the next time the winding motor 14 is driven to rotate the winding shaft, the rotational speed of the winding motor 14 is set to the speed change amount. Accelerate and increase the winding speed on the winding shaft 2.

If between the average sensor moving time S _a is not greater than the reference upper limit time T ₁ a predetermined rotation speed setting unit 12, the average inter-sensor movement time calculated S _a reference lower limit for a predetermined period of time T determine less or not than ₂ (step A12), when the calculated average inter-sensor moving time S _a is smaller than the reference limit time T ₂ that has been determined in advance, are determined, the setting rotational speed in advance Decelerate by the speed change amount (step A13) and return to step A2. If the calculated average inter-sensor moving time S _a is smaller than the reference upper limit time T ₂ of predetermined means that the tension arm 5 is raised faster than assumed, successively to the winding shaft Due to factors such as an increase in the winding diameter of the continuous paper that has been wound up as the paper winding progresses, the winding speed to the winding shaft 2 becomes higher than the issuance speed of the continuous paper 1 from the printer. Yes. Accordingly, by decelerating the set rotational speed by a predetermined speed change amount, the next time the winding motor 14 is driven to rotate the winding shaft, the rotational speed of the winding motor 14 is reduced by the speed change amount. Decelerate to slow down the winding speed on the winding shaft 2.

Incidentally, if the calculated average inter-sensor moving time S _a is not smaller than the reference limit time T ₂ of predetermined in step A9, i.e. the average sensor between travel time S _a reference upper limit time T ₁ and the reference lower limit time T ₂ If it is within the range, the set rotational speed set in the rotational speed setting unit 12 is not changed, and the process returns to step A2.

As described above, according to the present embodiment, the time required for the tension arm 5 to move between the plurality of detection positions (A ₁ , A ₂ , A ₃ , A ₄ ) is the inter-sensor movement time S _m. By measuring and configuring the rotational speed of the winding shaft 2 based on the measured movement time S _m between the sensors, the winding diameter of the continuous paper 1 on the winding shaft 2 is increased, thereby winding the winding shaft 2. Even when the take-up speed corresponding to the rotation speed of the take-up shaft 2 is increased, the rotation speed of the take-up shaft 2 can be changed according to the actual take-up speed. Can be prevented, and it is possible to prevent the printing extension and paper breakage caused by the tension applied to the continuous paper 1 being too large, and the winding diameter of the continuous paper 1 on the winding shaft 2 is increased. With that Even when the rotation of the take-up shaft 2 is stopped, even if it becomes difficult to stop immediately due to inertia, it is possible to prevent the tension arm 5 from colliding with the upper limit of the swing range and to prevent the paper from running out. There is an effect.

In the present embodiment, the average inter-sensor movement time S _a (S _a = ΣS _m / m) of the _m inter-sensor movement times S _m input from the arm position recognition unit 11 by the rotation speed setting unit 12 is calculated. calculated based on the calculated average inter-sensor moving time S _a, was constructed the setting rotational speed to accelerate or decelerate, the time movement between the sensor between a particular detection position S _{m (e.g.,} from the detection position a ₂ top The set rotational speed may be accelerated or decelerated based on the inter-sensor movement time S ₁ ) up to the upper detection position A ₁ .

Further, in the present embodiment, after the tension arm 5 is stopped driving of the take-up motor 14 reaches the detection position A ₁ of the top, next setting rotational speed, i.e. a rotational speed of the take-up shaft 2 is configured so as to accelerate or decelerate, may be a rotational speed before, i.e. during driving of the take-up motor 14 to the tension arm 5 reaches the detection position a ₁ of the top so that acceleration and deceleration. In this case, for example, rotation setting based on the sensor between travel time S ₂ from sensor between travel time S ₃ and the detection position A ₃ from the detection position A ₄ at the bottom to the detection position A ₃ to the detection position A ₂ The speed may be increased or decreased so that the rotation speed of the winding shaft 2 is accelerated or decelerated while the winding motor 14 is being driven.

Further, in this embodiment, the tension arm 5 after stopping the driving of the take-up motor 14 reaches the detection position A ₁ of the top, in each case, the next time based on the average inter-sensor moving time S _a Although the setting rotational speed is configured such that acceleration and deceleration, when the tension arm 5 reaches several times at the detection position a ₁ of the top may be the next setting rotational speed so as to accelerate or decelerate. Average In this case, the tension arm 5 is measured the number of times p * m pieces of sensor between moving time S _m has reached the detection position A ₁ of the top, on the basis of the p * m between pieces of sensor moving time S _m The inter-sensor movement time _Sa may be calculated.

Furthermore, in the present embodiment, the average and the sensor between travel time S _a of m sensor between travel time S _m, by comparing the reference upper limit time T ₁ and the reference lower limit time T _2, the setting rotational speed pressurized by is configured so as to decelerate, which calculates the moving speed of the tension arm 5 on the basis of the sensor between the moving time S _m, compares the speed of movement of the tension arm 5, a reference upper limit speed and the reference lower limit speed, set You may comprise so that a rotational speed may be accelerated / decelerated. By calculating the moving speed of the tension arm 5, it is not necessary to set the distances between the adjacent detection positions (A ₁ , A ₂ , A ₃ , A ₄ ) to be the same distance, and the degree of freedom in setting the detection position is increased. Get higher.

  It should be noted that the present invention is not limited to the above-described embodiments, and it is obvious that each embodiment can be appropriately changed within the scope of the technical idea of the present invention. In addition, the number, position, shape, and the like of the constituent members are not limited to the above-described embodiment, and can be set to a suitable number, position, shape, and the like in practicing the present invention. In each figure, the same numerals are given to the same component.

It is a schematic perspective view which shows the structure of embodiment of the continuous paper winding apparatus which concerns on this invention. It is a schematic diagram for demonstrating operation | movement of the tension arm shown in FIG. It is a schematic diagram which shows the sensor mechanism attached to the arm axis | shaft shown in FIG. It is a block diagram which shows the structure of the control part in embodiment of the continuous paper winding apparatus which concerns on this invention. It is a flowchart for demonstrating operation | movement of embodiment of the continuous paper winding apparatus which concerns on this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Continuous paper 2 Winding shaft 3 1st guide roller 4 2nd guide roller 5 Tension arm 6 Paper tube 7 1st position detection sensor 8 2nd position detection sensor 11 Arm position recognition part 12 Rotation speed setting part 13 Motor drive part 14 Winding motor 51 Arm shaft 52 Tension roller 53 Sensor plate 54 First groove 55 Second groove

Claims (5)

A continuous paper take-up device provided with tension applying means for applying tension to the continuous paper on the upstream side of a take-up shaft for taking up continuous paper issued from a printer,
A position detection sensor for detecting the tension applying means at a plurality of detection positions within a movement range of the tension applying means;
Arm position recognizing means for measuring, as the movement time between sensors, the time required for the tension applying means to move between the plurality of detection positions while the winding shaft is rotated;
Rotation speed setting means for setting the rotation speed of the winding shaft based on the movement time between the sensors measured by the arm position recognition means;
A continuous paper winding apparatus comprising: motor driving means for rotating the winding shaft at a rotational speed set by the rotational speed setting means.   The rotation speed setting means accelerates and sets the rotation speed when the inter-sensor movement time is longer than a predetermined reference upper limit time, and the inter-sensor movement time is a predetermined reference lower limit. 2. The continuous paper take-up device according to claim 1, wherein when the time is shorter than the time, the rotational speed is set by decelerating.   2. The tension applying means according to claim 1, wherein one end of the tension applying unit is swingably attached to the arm shaft, and a tension roller that contacts the continuous paper is attached to the other end. 2. The continuous paper take-up device according to 2. The arm position recognition means measures a plurality of movement times between the sensors,
The rotation speed setting means sets the rotation speed of the winding shaft based on a plurality of movement times between the sensors measured by the arm position recognition means. The continuous paper winding device as described. A continuous paper winding method in which tension applying means for applying tension to the continuous paper is provided on the upstream side of a winding shaft for winding the continuous paper issued from a printer,
Detecting the tension applying means at a plurality of detection positions within a movement range of the tension applying means;
The time required for the tension applying means to move between the plurality of detection positions while the winding shaft is rotating is measured as the movement time between sensors,
Based on the measured movement time between the sensors, the rotational speed of the winding shaft is set,
A continuous paper winding method, wherein the winding shaft is rotated at the set rotational speed.

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