JPH0617802Y2 - Tension adjusting mechanism for tape transport device - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention provides a polymerized raw tape in which a plurality of tapes are polymerized,
After separating into multiple tape units, branch the direction,
The present invention relates to a tension adjusting mechanism for applying a tension suitable for a downstream operation to a tape unit of one of polymerized raw tapes separated from another tape unit in a tape transporting device configured to feed each of them.

[Prior Art] For example, on a raw polymer tape A shown in FIG.
Of the feeding roller C disposed on the upstream side of the feeding roller C and the branching roller D disposed on the downstream side of the feeding roller C, the polymerization raw tape A is crossed over, and both rollers C and D are respectively in the direction of arrow a. By rotating the tape A to separate into two tape single bodies a1 and a2 from the branching roller D, the single tape single piece a1 is fed from the winding side roller E to the winding means F and wound. At the same time, the other tape unit a2 is pressed by the pressure roller I onto the sheet-shaped material H placed and fixed on the pressing member G made of, for example, a turntable, and the pressing member G is moved to remove the adhesive material. The tape unit a2 is adhered to the sheet material H via the sheet-shaped material H, and the pressure-bonding roller I is retracted upward when the bonding of a predetermined length is completed. Holding the non-crimped portion near the crimped (bonded) portion, cutting the non-crimped portion at or near the boundary between the crimped portion and the non-crimped portion with a cutting blade, and holding and cutting means J once from the holding position to the standby position. The sheet material H is replaced, and then the holding and cutting means J is operated to lightly press the unbonded starting end portion of the tape single body a2 held on the replaced new sheet material H. By pressing and temporarily fixing, the holding and cutting means J is retracted to the retracted position again, and then the tape unit a2 is pressed onto the sheet-shaped material H by the pressure roller I, and the pinching member G is moved, thereby interposing the adhesive. A device for re-bonding the tape single body a2 to the sheet material H can be considered.

[Problems to be solved by the invention] By the way, in the case of such a device, the other tape unit a2 separated from the branch roller D and branched and fed is pressed by the pressure roller I onto the sheet-shaped material H. A large tension suitable for bonding is applied, and a small tension (slack) necessary for moving to the retracted position while being held by the holding and cutting means J is applied, and the large tension is applied to the other tape unit a2. No excessive slack is applied to one tape unit a1 when applied to the other tape unit, and unnecessary slack is not generated in one tape unit a1 when the small tension is applied to the other tape unit a2. It is demanded to devise.

The present invention has been made in view of the above circumstances, and an object thereof is to provide a tension adjusting mechanism of a tape transporting device which can satisfy the above-mentioned requirements with a simple configuration.

[Means for Solving the Problems] In order to achieve the above-mentioned object, the present invention provides a feeding roller for a polymerized raw tape which is arranged on the upstream side of a polymerized raw tape transport line and a delivery roller on the downstream side of this feeding roller. A first roller which is provided and has a branching roller for branching and feeding the polymerized tape into at least two tape units, and a tension adjusting mechanism is arranged between the rollers, and the tension adjusting mechanism is in rolling contact with the polymerized raw tape. Tension adjustment roller,
A second tension adjusting roller is provided that is separated along the surface of the branch roller and is branched and sent from the branch roller to the take-up side roller, and is rotated by the first tension adjusting roller. Attached to the first arm, and a fulcrum fulcrum is pivotally attached to the first arm, and a second tension adjusting roller is rotatably attached to the action point, and a fulcrum is pivotally attached parallel to the first arm. A second arm, and a drive source that is connected to at least one of the two force points so as to move back and forth so as to rotate and hold the two tension adjusting rollers in a direction of approaching and separating them. It is a thing.

[Operation] According to the present invention, the length of the polymerized raw tape from the feeding roller to the branching roller is increased by reversing the drive source and rotating and holding both arms in the direction to separate the tension rollers. By that amount, the other tape unit fed from the branch roller moves by being pulled toward the branch roller side, and a large tension is applied to the other tape unit branched and fed from one tape unit by the branch roller, Shorten the length of one tape unit from the branch roller to the take-up roller to absorb the amount of movement that occurs when one tape unit is pulled together with the other tape unit to the branch roller side. Prevents excessive tension from being applied to the unit.

Further, by moving the drive source forward and holding both arms in a direction to bring both tension rollers closer, the length of the polymerized raw tape from the feeding roller to the branch roller is shortened, The other tape alone sent out from the roller has slack, and the length of one tape from the branch roller to the take-up roller is lengthened so that the length between the feeding roller and the branch roller of the polymerized raw tape is increased. It absorbs the slack of one of the tapes caused by the shortening of the tape and gives an appropriate tension.

[Embodiment] An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a front view of the present invention. In FIG. 1, reference numeral 1 denotes a casing-shaped main body that accommodates various drive sources and a power transmission mechanism. The vertical panel 1A and the front lower end of the panel 1A face forward. And a horizontally extending base portion 1B.

On the vertical panel portion 1A, the polymerized raw tape 2 delivered from a delivery position (not shown), that is, the polymerized raw tape 2 in which the surface of one tape unit 2a is superposed with the other tape unit 2b, is further delivered to the downstream side. The delivery roller 3 is provided. And this feeding roller 3
A branching roller 4 for separating the polymerized raw tape 2 into one tape single body 2a and the other tape single body 2b for branching and feeding is provided on the downstream side.

A tension adjusting mechanism 5, which is the gist of the present invention, is arranged between the feeding roller 3 and the branching roller 4. The tension adjusting mechanism 5 has a pair of left and right first and second adjusting arms 5 having a first tension adjusting roller TR1 and a second tension adjusting roller TR2 rotatably attached to the lower end thereof.
A drive source 6 including a connecting member 6A and a cylinder device 6B, which has A and 5B and is bridged between the adjusting arms 5A and 5B. The upper end of the adjustment arm 5A, that is, the fulcrum is pin-pivoted 5a to the panel 1A, and the substantially central portion of the adjustment arm 5B, that is, the fulcrum is pin-pivoted 5b to the panel 1A, and is attached to the panel 1A. The tip of the rod 6b of the cylinder device 6B is connected to the force point of the adjustment arm 5A. Therefore, the cylinder device 6B
The adjustment arms 5A and 5B are indicated by solid lines by the operation of
The adjustment position and the second adjustment position indicated by an imaginary line are rotated and held.

The polymerized raw tape 2 delivered from the delivery roller 3 to the tension adjusting mechanism 5 reaches the branch roller 7 along the first tension adjusting roller TR1 of the adjusting arm 5A. One tape unit 2a of the polymerized raw tape 2 is sent upward from the branch roller 7 toward the second tension adjusting roller TR2 of the adjusting arm 5B, and the other tape unit 2b is sent downward toward the base portion 1B. Separated by. The initial work of this separation is done manually by the operator. And tension adjusting roller TR2
The one tape unit 2a sent from is guided by the take-up side roller 13 and taken up by a take-up reel (not shown).

Reference numeral 8 denotes a pressure roller, which is rotatably attached to the tip of an arm 9 and is rotated and held by a drive source such as a cylinder device (not shown) between a pressure position indicated by a solid line and a standby position indicated by a virtual line. It is supposed to be done. The holding and cutting mechanism 1 is provided near the pressure roller 8 and the arm 9.
0 is set. In the figure, 11 is a sheet-shaped material, and 12 is a turntable that functions as a pressing member, on which the sheet-shaped material 11 is placed and fixed.

Next, the operation will be described.

The sheet material 11 is placed on the pinching member 12 and fixed so as not to be displaced by the suction force of the vacuum.

At the time when the above-mentioned work preparation is completed, the unpressed starting end portion of the other tape unit 2b is adsorbed and held by the holding head 10A of the holding and cutting mechanism 10 as shown in FIG. 2A.

The operation of the cylinder 10B causes the holding head 10A to rotate to the position shown in FIG. 2B, and the other tape unit 2b.
Is lightly pressed onto the material 11 for temporary fixing (this temporary fixing is made by an adhesive material previously applied to the surface of the other tape unit 2b).

After releasing the suction of the holding head 10A, the cylinder 1
0B is moved back and the support plate 10C is rotated to retract the holding and cutting mechanism 10 to the retracted position shown by the solid line in FIG.

The pressure-bonding roller 8 is rotated to the pressure-bonding position shown by the solid line in FIG.
Push it to the side. That is, the sheet-shaped material 11, the adhesive material and the other tape unit 2 are formed by the pressure roller 8 and the pressing member 12.
Clamp b.

The rod 6b of the cylinder device 6B in the drive source 6 corresponding to the tension adjusting mechanism 5 is retracted to remove the first and second
The arms 5A and 5B are held at the first adjustment position shown by the solid line. As a result, the length of the polymerized raw tape 2 from the feeding roller 3 to the branching roller 4 becomes long, and the other tape unit 2b fed from the branching roller 4 is pulled and moved toward the branching roller 4 side by that amount. , The tape unit 2b is pulled between the branching roller 4 and the pressure-bonding roller 8 with a tension suitable for pressure bonding, and the length of one tape unit 2a from the branching roller 4 to the winding side roller 13 is shortened, so that one tape It absorbs the amount of movement generated by pulling the single body 2a together with the other tape single body 2b toward the branch roller 7 side, and prevents excessive tension from being applied to the single tape 2a.

The take-up reel and the take-up side roller 13 (not shown) are rotated in the arrow direction by drive sources (not shown), respectively, and the pinching member 2 is rotated in the arrow direction.

The other tape unit 2b is continuously fed between the pressure-bonding roller 8 and the sheet-shaped material 11, and the tape unit 2b is attached by the pressing force between the pressure-bonding roller 8 and the pressing member 12 to form a continuous seal line. The sealing process for forming is performed.

One tape unit 2a is taken up by a take-up reel (not shown).

When the seal line formed by the other tape unit 2b is formed on the sheet-shaped material 11 in the above, the drive source is all stopped, and then the arm 9 is rotated to the standby position shown by the phantom line in FIG. The pressure roller 8 retracts.

The support plate 10C is rotated to move the holding / cutting mechanism 10 to the holding / cutting position shown by the phantom line in FIG.
0A is brought into contact with the other tape unit 2b, suction force is applied to the holding head 10A by vacuum to suck and hold the unpressed starting end of the tape unit 2b, and the cutting blade 10D is heated by energization to heat the tape unit 2b. The boundary between the crimped part and the unbonded part or the unbonded part near the boundary is melt-cut.

The rod 6b of the cylinder device 6B in the drive source 6 is advanced to hold the first and second arms 5A and 5B at the second adjustment position indicated by the phantom line. As a result, the length of the polymerized raw tape 2 from the feeding roller 3 to the branch roller 4 is shortened, and the other tape unit 2b fed from the branch roller 4 has a slack by that amount, and at the same time from the branch roller 4. The length of one tape unit 2a reaching the take-up side roller 13 is lengthened to absorb the slack of one tape unit 2a caused by the shortening of the length between the polymerizing raw tape 2 feeding roller 3 and branching roller 7. And apply proper tension.

The holding and cutting mechanism 10 is moved to the retracted position shown by the solid line in FIG. 1 and stands by.

In the above embodiment, the drive source 6 is set to the first and second arms 5.
A rod 6b of the cylinder device 6B, which is composed of a connecting member 6A hung between A and 5B and a cylinder device 6B.
Although the tip is described as being connected to the force point of the first arm 5A, the tip of the rod 6b of the cylinder device 6B is set to the second point.
A structure connected to the force point of the arm 5B, or a connecting member 6A
Alternatively, the rod 6b of the cylinder device 6B may be connected to the respective force points of the first and second arms 5A and 5B, that is, the pair of cylinder devices 6B may be used.

[Effects of the Invention] As described above, according to the present invention, the tension of the other tape alone separated and branched from the branch roller can be adjusted with a simple structure, and the other tape alone can be adjusted. By adjusting the tension of (1), it is possible to apply a suitable tension to one tape alone separated and branched from the branch roller without causing excessive tension or unnecessary slack.

[Brief description of drawings]

FIG. 1 is a front view showing an embodiment of the present invention, FIGS. 2A and 2B are explanatory views of an operation state of a holding and cutting mechanism, and FIG. 3 is a front view of a conventional example. 2 ... Polymerized tape 2a ... One tape alone 2b ... The other tape alone 3 ... Delivery roller 4 ... Branch roller 5 ... Tension adjusting mechanism 5A ... First arm 5B ... Second arm 6 ... Drive source 13 ... Winding side roller TR1 … First tension adjusting roller TR2… Second tension adjusting roller

Claims (1)

[Scope of utility model registration request] 1. A feeding roller for feeding a polymerized raw tape, which is arranged on the upstream side of a polymerized raw tape transport line, and a polymerized tape, which is arranged on the downstream side of the feeding roller, for separating at least two tape units. A branching roller for branching and feeding is provided, and a tension adjusting mechanism is arranged between these rollers, and the tension adjusting mechanism is separated from a first tension adjusting roller which is in rolling contact with the polymerization raw tape and a surface of the branching roller. A second tension adjusting roller for rolling contact with one tape alone branched from the branching roller to the take-up side roller is provided, the first tension adjusting roller is rotatably attached to the action point, and the fulcrum is pivoted about a fulcrum. The attached first arm and the second tension adjusting roller are rotatably attached to the action point, and the fulcrum is pivoted in parallel with the first arm so that the lever can move. And a drive source that is connected to at least one of the force points of both arms so as to be able to move back and forth and that rotationally holds both of the tension adjusting rollers in a direction of approaching and separating the tension adjusting rollers. The tension adjusting mechanism of the tape transport device, which is characterized in that