JPH0367848A - Tape-end forming device - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an apparatus for making a tape end portion when making a plurality of, for example, small rolls of tape from an original tape.

[Prior Art] The present applicant has developed an apparatus for manufacturing ink ribbon tape used for type-like, etc., and has developed an apparatus for applying leader tape (Apparatus A (Japanese Patent Application No. 1-31167) and r-ribbon winding apparatus). (Japanese Patent Application No. 63-268182), R tape automatic winding method and device Jl (Patent Application No. 63-276228)
The application was filed as

The ribbon tape end forming apparatus disclosed in these prior applications uses a raw fabric (hereinafter simply referred to as "raw fabric") in which a thin sheet-like ink ribbon is wound in multiple layers (total length, about 5000 m). This sheet-like tape (width, several tens of centimeters) is pulled out with a pinch roller rotating at a predetermined speed, and passed through a slitter with multiple cutting blades arranged in the width direction. A large number of narrow tapes are obtained at once. Each of the plurality of narrowly cut tapes is wound around a plurality of winding members called winding cores.

[Problems to be Solved by the Invention] By the way, it is possible to collect as many tapes as the number of cuts mentioned above from a long raw material at one time, and furthermore, it is possible to cut this into several times. This is more efficient as it saves the trouble of replacing the original fabric.

However, in order to do this, in order for the tape to be commercially available, it must satisfy the condition that it has a certain length, so the end of the tape must be accurately detected. Therefore, terminal processing must be performed.

This terminal processing generally requires cutting the tape at a predetermined position and neatly winding the cut and free terminals onto tape. By the way, in order to perform such an operation, at least a cutting mechanism, a holding mechanism for the cut tape, a winding mechanism for winding the cut tape so that it does not come loose, etc. are required. In order to satisfy that the amount is constant, it is preferable to provide a mechanism for detecting the end of the tape as close as possible to such a complicated mechanism in order to perform more accurate end position processing. However, as described above, it is extremely difficult to provide a tape end position detection mechanism, such as a sensor, in a place where the above-mentioned complicated mechanisms are involved due to the space factor.

Conventionally, for this reason, this detection mechanism had to be placed at a position separate from the aforementioned cutting mechanism.
Because the detected tape end position was conveyed to the tape cutting position without control, the part of the tape to be cut is not necessarily the tape end position, and if it is too far, it may interfere with the winding of the next tape. In some cases, the cut was made at a position that would expose the .

The present invention has been made in view of the problems of the prior art, and its purpose is to improve the space factor of the tape end detection mechanism and the tape end processing mechanism, and to simultaneously achieve accurate tape end processing. This paper proposes a tape end forming device.

[Means for Solving the Problems and Their Effects] The structure of the present invention for achieving this problem is that in an end part creating device for performing end processing when shortening a long tape,
A marker provided on the tape at a position to be the end of the tape, a detection means for the marker provided on the running path of the tape, and a timer for starting time measurement upon receiving the output of the detection means; a control means for controlling the conveyance speed of the tape; and an end processing means provided at a position on the tape running path removed from the position where the detection means is installed, the time measurement means detecting a predetermined period of time after starting time measurement. The present invention is characterized in that it includes a tape end processing means that performs tape end processing when the elapse of a predetermined time is detected, while controlling the tape transport speed by the control means until the elapse of the predetermined time.

Since the detection means and tape end processing means are located at different positions, they do not interfere with each other. on the other hand,
Even if the detecting means is not at the end processing position, it is possible to accurately ensure that the end of the tape comes to the proper end processing position by time monitoring and conveyance speed control.

[Example 1] Referring to the attached drawings below, the present invention is carried out by attaching a leader tape to an original ink ribbon while feeding it, cutting it in the feeding direction, and cutting the ink ribbon as a cut tape into a plurality of cores. An embodiment applied to a league attaching/cutting/winding device will be described in detail. That is, this device is an improvement of the tape winding device of the applicant's earlier application in accordance with the object of the present invention.

The league attaching/cutting/winding device of the embodiment has the tape feeding/leader tape pasting portion shown in FIG.
It consists of a cutting/winding part shown in FIG. In addition, the details of the tape feeding/leader tape pasting in Fig. 3 are as follows:
67), the cutting/winding part in Fig. 4 is "Ribbon Winding Device" (Patent Application 1983-268182) and "Automatic Winding Method and Apparatus for R Tape" (Patent Application 1987-276228).
are explained respectively. Therefore, a detailed explanation of the league attaching/cutting/winding device according to this embodiment will be left to them, but in order to understand the outline of the operation of this device, a tape is fed out from a raw material, a leader is attached, and a leader is attached. The process from cutting to wrapping around the core will be explained, mainly the path of the tape.

<General description of tape bath> In this league attaching/cutting/winding device, the tape from the raw sheet is sent out from the device shown in Fig. 3, where the leader tape is adhered, and then the tape is sent out from the device shown in Fig. 3. The fed tape is sent to a cutting/winding unit shown in FIG.

FIG. 2A is a diagram schematically showing the process until the sheet 10 unwound from the original fabric 60 is wound up at the winding section. Also,
FIG. 2B is a diagram showing how the rotational speed of the main roller 39 rotated by the spindle motor changes over time from the start of the work to the end.

In FIG. 2A, the wide sheet 10 from the original fabric 60 reaches the slitter 33 via the roller portion IL12 (11° 12 in FIG. 3). Here, the tape is cut into a narrow tape and further pulled by the main roller 39. The multiple narrow tapes cut in this way are
At the position of the main roller 39, two groups (10a,
10b) and sent. That is, all adjacent tapes are separated and one is sent to the winding core 22 and the other to the winding core 70 for winding. 2
The reason for the separation in two directions is to ensure spatial space for the plurality of cores 22 and 70 in two locations. It should be noted that the leader tape is attached between the roller groups 11 and 12, which becomes clear from FIG.

The feeding speed of the sheet 10 is defined by the rotational speed of the main roller 39. As shown in FIG. 2B, the main roller 39
The rotational speed of is changing in a trapezoidal manner, and the speed gradually increases during the first period (20 seconds), and then a constant speed (No.)
pulls the sheet, and after a period of constant velocity it gradually decelerates and comes to a stop. In FIG. 2B, the re-transport of the tape in II is explained up to moving the end of the tape to the tape cutting position.

Here, the process up to moving the tape end portion to the tape cutting position in II of FIG. 2B will be briefly described. Time t3
The tape is stopped from to t. This tape stop time is the time required to attach the leader tape portion to the original fabric sheet using the apparatus shown in FIG. Once the leader tape is attached to the sheet 10, the conveyance of the original tape cut lO is restarted at time t4 (conveyance speed N).

A predetermined marker on the leader tape corresponds to a predetermined sensor (fourth
When it is detected at 28) in the figure (time te), the transport speed is reduced to N2, and the tape is further transported for (tat5) time and then stopped. This transport ensures that the end portion of the tape is transported to the position where the tape is to be cut.

The above is a general explanation of the tape cutting operation.

In addition, in order to operate this device from the initial state, the operator must:
Pull out the sheet from the original fabric 60 and transfer it to the main roller 3.
Send it to position 9. At this point, only the apparatus of FIG. 3 is in operation, applying the leader tape to the sheet 10 and then moving the sheet 10 until the leader tape portion reaches the core position. Once the leader tape parts cut into multiple tapes are stuck to the core, turn on the start switch of the device, and the device itself will transport the sheet, cut the sheet, attach the leader tape, and wind it around the core. Retrieval, etc. will be performed automatically.

FIG. 2C is a diagram showing the positional relationship of a plurality of power sources used in this device and the signals exchanged between these power sources and the controller 300.

That is, the servo motor 22 that rotates the main roller 39
0 rotates according to the signal N from the controller 300. Note that the rotation of the servo motor 220 is reduced to one-fourth and transmitted to the main roller 39. The rotation of the servo motor is monitored by the encoder 221, and the monitor signal is sent to a predetermined controller 300 as a signal β.

Since there is no slip on the roller 39 with respect to the sheet 10, by counting the pulse signal β, the distance β that the sheet has been conveyed to the core, or in other words, the distance β that the sheet has been wound around the core, can be determined.

A motor 10 is a source of frictional rotational force transmitted to the core.
6 is sent the signal NvM. A signal BR is sent to the powder brake 222 for applying a brake to the original fabric 60 and applying tension to the sheet 10. A signal SC is sent to a stepping motor 223 that moves the position of the original fabric 60 from side to side so that the sheet being conveyed does not twist.

<Sheet feeding/leader attachment> Referring to FIG. 3, sheet feeding and leader tape attachment will be briefly explained.

As explained with reference to FIG. 2B, attachment of the leader tape is performed at the time when a predetermined amount of tape is wound onto the winding core 22 from the original fabric sheet 60 (time ts in FIG. 2B, 1).

A mechanism for attaching the leader tape is provided between a roller group 11 and a roller group 12 arranged opposite to this roller group 11. The sheet 10 from the original fabric roller 6o is guided by a group of rollers 11, passes through a device for applying a leader tape, and is then transferred to a ribbon tape winding system shown in FIG. 4 via a group of rollers 12. These two roller groups are
The tension applied to the tape 10 is adjusted.

The clamp units 14a and 14b clamp the sheet 10 at a predetermined interval in the feeding direction. The purpose of this predetermined interval is to cut this gap and apply the leader tape to the gap. The leader tape indicates the start/end position of the tape winding operation, and for this purpose, a marker that reflects light is attached to this tape.

The presence of this marker is detected by sensor 28, which will be described in connection with FIG.

The operation of attaching the leader tape is as follows. The suction boxes 15a and 15b suction the sheet 10 in the clamped state 2. Cutting unit 16a.

16b holds the sheet 10 in this suction state between each inner suction box and the outer suction box.
Cut along the width direction. The unnecessary sheets 10a that have been cut and separated between these cutting positions are discarded from the disposal opening 17b. The drawer unit 21 draws out the leader tape 20 along the width direction of the sheet 10 between the cutting positions.

The leader tape pressing members 18a and 18b attach adhesive portions 20a and 20b provided on the lower surfaces of both ends of the leader tape 20 along the drawing direction to the cut ends of the sheet 10. The cutting unit 22 is used for pasting the leader tape 20.
is cut along the feeding direction of the sheet 10.

The above is an outline of how to attach the leader tape.

FIG. 5 shows the relationship between the leader tape portion and the ink ribbon that has been wound up.

In FIG. 5(b), the leader tape has adhesive treatment applied to both end portions 80 and 84, and yellow tape portion 80.
1 and a silver marker portion 83. Note that 82 is a bonded portion between the yellow tape portion 81 and the silver marker portion 83. A leader tape (third
20 in the figure), but the leader tape installation in Figure 3 is done using the ink sheet 90 cut out from the original fabric sheet.
and 91 and glued at both ends 80 and 84.

FIG. 5(a) shows the cutting position of the tape. As shown in the figure, when the - roll of tape is wound into a reel,
Adhesive part 8 between yellow tape part 81 and silver marker part 83
At step 2, it is cut with a cutter. The silver marker portion 83 will be wound onto the side of the next roll of tape.

<Cutting/Winding> The general operation of cutting the sheet 10 into a plurality of tapes and winding these tapes around the core 22.70 will be described with reference to FIGS. 4A to 4C.

In FIG. 4A, the sheet 10 is cut by the slitter 33.
The sheet 10 is cut at equal intervals in the feeding direction. Each of the cut tapes 10 is pulled by the main roller 39, where it is separated into two directions, up and down. The tape group 10a separated upwardly is wound up by a core group 23 consisting of a plurality of cores. The vacuum 35 sucks up unnecessary tape (often not wide enough) corresponding to both ends of the sheet 10. The sensor 28 is also connected to the silver marker 8 on the leader tape.
This is a sensor that detects 3.

As shown in FIG. 4A, the winding device of this embodiment is provided with two core groups 23 and 22 provided at both ends of a rotating turret 20 that rotates 180 degrees counterclockwise. Guides 24 and 25 are arranged at the upper and lower ends of the center of .23. The cores 22 and 23 are supported by a winding shaft that rotates counterclockwise by a drive source (not shown).
After the tape is wound on the main roller 39 side, it is moved to the opposite side by the rotation of the turret 20. At this time, the core 22 is moved toward the main roller 39 by the rotation of the turret 20 and is used for winding the next tape.

A guide roller 27 having a beam function is provided near the main roller 39 side of the crette 20, and a roller 34 is provided between the roller 27 and the roller 39, and a sensor 28 is provided on the opposite side thereof. ing. Further, a vacuum chamber 30 and a cutter 31 are provided above the turret 20, and these are each lowered to a predetermined position by a lifting device (not shown). The cutter 31 cuts the tape 10 at a predetermined position, and the chamber 30 guides tape feeding while adsorbing the tape 10 passing near the cutter 31, thereby preventing the tape 10 from being wound up in a disordered state.

FIG. 4Δ shows a state in which the tape 10 is wound around the core 23. When a predetermined amount of tape is wound around the core 23 by the control described later, the above-described leader tape is attached (between t3 and t4 in FIG. 2B). After installation is complete, transport the tape (rotational speed of roller 39 is Nl)
will be resumed. As the tape is transported, the attached leader tape moves and is cut by the slitter 33 in the transport direction. Further, the cut marker 6 portion 83 is detected by the sensor 28. Then, from this point on, the tape transport speed is reduced to N2, and at the same time, a timer, which will be described later, monitors the passage of time (t6-t in FIG. 2B). Once this predetermined time has elapsed, tape transport is stopped.

This ta j s time is determined as follows.

That is, when the tape is decelerated to N2 at time t5, the tape is conveyed at this speed, and then the tape is stopped at time ◯, at this point, the portion 82 of the leader tape shown in FIG. The time is such that it is located directly below the . At this point, the leading edge of the next tape is at the roller 27, and is clamped by this roller.

Next, with the tape clamped by the roller 27,
Free the core 23. Then, in this free state, the turret 2o is rotated 180 degrees, and as shown in Figure 4B, the core 23 that has been wound up until now moves to the left side of the figure, and the empty core group 22 is unwound. It can be moved to the pick-up position. At this time, the tape IO passes through the roller 25 to the core 2.
It will be in a stretched state between 2 and 23. Also, turret 2
As the roller 0 rotates, the leader tape part once wound around the core 23 is pulled out, and the yellow tape part 81 and the like are exposed between the core 22 and the roller 25.

In the core 22, the adhesive portion 82 is in contact with the core, and in this state, the sticking roller 40 is moved to press the adhesive portion 82 against the core 22 and stick it. The roller 40 retreats to its original position after being pressed.

Next, as shown in FIG. 4C, the vacuum chamber 3
0 is lowered and positioned between the core 23 and the roller 25. This chamber attracts the tape 10 to the chamber side.

This chamber 30 includes a leaf spring 32 extending toward the core 23 and presses down the tape wound around the core 23. In this way, the tape wound around the core 23 is held by the guide roller 27 and the leaf spring 32.

In this state, the cutter 31 descends and cuts the connecting portion 82 at a position near the delivery side of the core 22 (position C in FIG. 4C). In this state, although the core 23 is free, the wound tape does not come loose from the core 23 because it is held by the vacuum. Next, rotate the core 23 and remove all the free ends of the tape.
It is wound around the core 23. At this time, the cut adhesive part 8
The remaining half of 2 is pressed against the core 23 by the leaf spring 32, so that it adheres to the wound tape. Next, chamber 30. Remove the cutter 31 etc. from the winding work space. In this way, when the tape is wound around the core 23, the core 2
Step 2: Preparations for winding a new tape have been completed.

Note that the same turret mechanism, core group (70 in FIG. 2A), cutter, etc. as in FIG. 4 act on the tape group 10b, and the tape is wound around the core in the same manner.

<Details of Termination Processing Control> FIG. 1 is a diagram focusing on the control portion of the termination processing apparatus of this embodiment.

The winding amount to the core (approximately equal to the conveying amount) is determined by the 9 block 252 counting pulse signals from the encoder 221. System-wide timekeeping occurs at block 251. Motor control for controlling the rotation speed of the main roller 39 is performed by a block 253 calculating the rotation speed NM from the elapsed time t and outputting this to the servo motor 220. Block 254 controls the rotation speed of the winding remoter 106 to rotate the core by frictional engagement by obtaining the winding length β and Nt+.
This is done by calculating Nw and outputting it to the winding remoter 106.

Terminal processing control characteristic of this embodiment is performed by block 255. That is, this block 255 receives the elapsed time t and a signal from the silver marker sensor 28 to drive and control the turret 20 and the like.

<Control of Terminal Processing> The control procedure for terminal processing according to this embodiment will be described in detail below according to the flowchart shown in FIG.

0 Figure 6A shows the transition from time 1=0 shown in Figure 2B to t''
The control up to t3 will be explained. FIG. 6B shows t'' t3
The following steps for terminal processing control are shown below.

In FIG. 6A, in step S2, the timer of timer block 251 is reset. In step S4, it is determined whether the time t has elapsed, that is, whether the acceleration period shown in FIG. 5A has ended.

Note that this tl is held in a constant block 250.

During this acceleration period, from step 86 to step S8,
The rotation speed N of the servo motor 220.

of, shall be. Here, N is the constant speed V of the main roller 39.

This is the rotational speed when . That is, during the acceleration period, the number of rotations of the main roller 39 is N. increases linearly over time. When the time tl has elapsed, step S
Proceed to step 12 and increase the rotation speed N2 to N. Fixed to. This rotation speed N. is maintained during constant speed conveyance. The end of the constant speed conveyance period is determined when the winding length β wound around the core satisfies 4≧42. When the end of the constant velocity conveyance period is recognized, in step S18, the end time of the constant velocity conveyance period is stored in the upper register 2.

Steps 320 to S24 are rotational speed control during the deceleration period. The end of this deceleration period is performed in step S22 by determining whether t-t2≧t3j 2 , that is, the elapsed time after the start of deceleration has reached t3'j,2 or more. The rotation speed control of the servo motor during the deceleration period is performed in step S24.

The above is the rotation speed control of the servo motor from accelerated conveyance to uniform conveyance to decelerated conveyance. The winding amount and servo motor rotation speed in these three sections are registered respectively! 2 (at step S54), register NM
(in steps S8 and S12.24).

Next, adhesion of the leader tape is performed in step 528 of FIG. 6B. The structure of the leader tape has been explained with reference to FIG. 5, and its attachment and the structure and operation of the apparatus have been explained with reference to FIG. 3.

When the adhesion of the leader tape is completed, in step S30,
The main roller 39 is rotated again and accelerated toward the speed N1. This speed N1 is a speed at which the marker can be detected reliably, and N, <N.

It is. The acceleration control is performed by the same control as that performed in steps S6 to S8 in FIG. 6A. When the acceleration is finished, in step S32, the conveyance speed NM=N,
to be maintained. In step S34, the process waits until the sensor 28 detects the silver marker.

When the silver marker 83 passes the sensor 28, step S3
4 is YES, and the control in steps 336 and below 3 and the control in steps S40 and below are performed simultaneously.

That is, in step S36, a predetermined time width (t6-ts) is set in a timer, and in step 338, the timer is monitored until it times out.

On the other hand, when the silver marker 83 is detected, the conveyance speed is decelerated toward NM=N2 in step S40. The speed is N2
If so, the conveyance speed is maintained at N2 in step S42. During this constant speed conveyance, the timer will eventually time out. At this point, the end of the tape is at core 23 (fourth
Figure A) is located above. Therefore, in step S44,
Stop transport. Then, in step S46, the winding core (23 in the example of FIG. 4) is made free. This is accomplished by disengaging the frictionally engaged rotating core. In step S48, the turret 20 is rotated 180 degrees. After rotation of the turret (FIG. 4B), in step S50, the roller 40 is moved to press the tape against the empty core 22, pressing the adhesive portion 82 of the tape against the core 22. In step S52, this roller 40 is released, and in step S54, the vacuum chamber 30 is lowered (FIG. 4C). This lowering causes the tape to move to the core 2
3 and a leaf spring 32, and also by vacuum.

In this state, the cutter 31 is lowered in step S56,
Cut the tape near the core 23 side of the core 22.

Next, in step S60, frictional engagement is applied while the rotational speed (Nw) of the core rotation source (the take-up remoter 106 in FIG. 1) is considerably reduced. Then, core 23
rotates gradually and slowly winds up the end of the tape. In step S62, whether the winding onto the core 23 is completed is monitored by time monitoring. When it is detected over time that the winding on the core 23 has been completed, the winding speed Nw is set to °"O" in step S64, and the vacuum chamber 30 etc. are moved to the winding work space in step S66. This completes the tape termination process.

<Modifications> The present invention can be modified in various ways without departing from the spirit thereof. For example, the apparatus of the present invention can not only apply a leader tape to an ink-coated ribbon tape, but also apply a leader tape to other ribbon-like materials, such as thermal or similar printing tape or magnetic tape that does not use ink. It can also be applied to the pasting process.

In addition, the silver marker sensor is not limited to the reflective type of this example.
A transparent type may also be used.

The number of silver markers may be two or more depending on the intended use of the tape. In this case, the timer may be activated after the last silver marker is detected.

[Effects of the Invention] As explained above, according to the present invention, the tape end marker detection means and the tape end processing means, such as a tape cutter, are located at different positions, so that they do not interfere with each other. There isn't. On the other hand, even if the detecting means is not at the end processing position, it is possible to accurately ensure that the end of the tape comes to the proper end processing position by time monitoring and conveyance speed control. Therefore, it is possible to simultaneously achieve an improvement in the space factor of the tape end detection mechanism and tape end processing mechanism, and accurate tape end processing.

[Brief explanation of drawings]

Fig. 1 is a functional block diagram of a controller in an embodiment in which the present invention is applied to an ink ribbon winding device, Fig. 2A is a diagram schematically showing the tape path in the embodiment device, and Fig. 2B is a diagram of the main roller. Graph showing changes in rotational speed, Figure 2C is a diagram showing the configuration of the control device of each rotating part in the example device, Figure 3 is a perspective view of the leader tape attachment section of the example device, and Figures 4A to 4A. Fig. 4C is a diagram explaining the operation of the tape cutting/winding section of the embodiment device; 7 Fig. 5 is a diagram explaining the relationship between end processing at the end of the tape and the leader tape; Fig. 6A is the embodiment Fig. 6B is a flowchart of a control procedure for controlling the speed of the servo motor 220 for the main roller 39 in the embodiment. Part 8, 105...clutch, 106... winding remoter, 220... servo motor, 221... encoder, 222... powder brake, 223... stepping motor. In the figure, 10... Sheet, 11.12... Tension adjustment roller group, 14a, 14b... Clamp unit, 15...
Suction box, 16... Cutting unit, 18... Leader tape suppressing member, 19... Leader tape adhesion portion is member, 20... Leader tape, 21... Drawer unit, 22.23...・Core group, 24.25...Guide, 27, 34.36-38...Roller, 28...
・Sensor, 30.35...Vacuum, 31...Cutter, 33...Slitter, 39...Main roller,
40... Roller, 60... Raw sheet, 80, 82
．． 84...Adhesive part, 81...Yellow tape part, 83.
・・Silver marker-458- Figure 6B

Claims (4)

[Claims] (1) In a terminal part creation device for performing terminal processing when shortening a long tape, a marker provided on the tape at the position that should be the end of the tape, and the above marker provided on the tape running path. a marker detection means; a timekeeping means for starting time counting upon receiving the output of the detection means; a control means for controlling the tape conveyance speed; The end processing means provided at the position controls the transport speed of the tape by the control means until a predetermined time elapses after the timer starts counting, and when the elapse of the predetermined time is detected, the end processing means of the tape What is claimed is: 1. A tape end forming device, comprising: tape end processing means for performing processing. (2) The tape end forming apparatus according to claim 1, wherein the end processing is tape cutting processing. (3) The tape end forming apparatus according to claim 1, wherein the marker is a silver marker that reflects light. (4) At the end position of the tape in the running direction on the running route,
It further comprises a means for winding the tape into a reel, the process of shortening the long tape is winding by the winding means, and the terminal processing means is located between the detecting means and the winding means. 2. A tape end forming apparatus according to claim 1, further comprising: a tape end forming apparatus.