JPS6350248B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a binding tape bonding device for a paper sheet binding machine that wraps a tape around paper sheets and binds them by heat-bonding them.

Conventionally, paper sheet binding devices need to have a compensation mechanism because when binding paper sheets, the state in which the tape is wrapped changes when the size or thickness of the sheets changes. Structures tended to become more complex. The present applicant proposed Japanese Patent Application Laid-open No. 54-22995 (Binding tape supply device for paper sheet binding machine), which enables effective binding with a simple structure even when the size and thickness of paper sheets changes. I made it possible. However, there has been a need for a more effective means for reliably adhering and cutting the tape at the beginning and end of winding it around paper sheets, and for reliably controlling the process.

This invention was made in consideration of the above-mentioned background, and the tape hanging member that wraps the tape around the paper sheets has the tapes in contact with each other, the weight is supported by the mutually contacting parts, and the tape is cut. An object of the present invention is to provide a paper sheet binding device that can reliably adhere, cut, and bind tape by detecting a phenomenon in which a tape hanging member descends due to its own weight when It is something.

The present invention will be described below based on embodiments shown in the drawings.

First, an overview of the overall configuration and bundling procedure will be explained. In the illustrated example, the tape coil T rotatably attached to the base frame 1 is made of heat-weldable polyvinyl chloride, for example, and the tape t is pulled out and passed through the cutout groove 2a of one of the clamping plates 2A to the winding head 3. The paper sheets (for example, a bundle of banknotes) are connected and stretched, and then the paper sheets (for example, a bundle of banknotes) are placed on the paper sheet support plate 4, and the other holding plate 2B is moved to the one holding plate 2A side to hold the paper sheets. A recess 5a sandwiching M and formed downward at the lower end of the tape hanging member 5
Raise the rod-shaped adhesion cutting means (hereinafter referred to as heating member) 6 facing the tape t to bring it into contact with the tape t, push down the tape hanging member 5 along the notch groove 2b of the other clamping plate 2B, and remove the tape t. The paper sheet M is wound around the paper sheet M while applying tension, and the tape t is brought into contact with each other at the lower corners of the paper sheet M, and the heating member 5 is heated to thermally weld the tape t to each other. At this time, the tape is cut as will be described later in the middle of this heat-welded part, so return the tape hanging member 5 and heating member 6 to their original positions, and open both clamping plates 2A and 2B to attach the tape t. The twisted paper sheets M are discharged, and the tape t with the welded piece 7 left behind is wound up by the winding head 3 in preparation for the next binding operation.

An example of a specific configuration will be described below.

The tape coil T has a tape head 1 on a base frame 1.
The tape head 11 is rotatably attached to the tape head 11 via a brake member 1 operated by a solenoid 12 attached to the base frame 1.
3 are brought into contact with each other, and near this brake member 13, tension is applied to the tape t taken out from the tape coil T through a tension plate 15 by the biasing force of the coil spring 14. A tension roller 16 is provided to give the tape t a tension roller 16.
It is stretched over the winding head 3 via a guide roller 17 arranged above the notched groove 2a of the one holding plate 2A and a lower roller 18 arranged below the notched groove 2a. (See Figures 1 and 3).

Further, the one clamping plate 2A has guide frames 21A and 2 fixed to the base frame 1 so as to face each other.
1B, it is supported by one guide frame 21A so as to be movable in the opposing direction (horizontal direction),
The other guide frame 2 is moved by the spring 22A.
The tape t is pushed out toward the 1B side and is in a state where it fits into the notch groove 2a. The other clamping plate 2B is movably supported by the guide frame 21B, and the connecting plate 22 is supported by a spring 22B.
C and one clamping plate 2 via the guide shaft 22D.
It is pushed in the opposite direction to A, and this clamping plate 2
A rack member 23 is attached to B, and the driving force of the motor 24 is transferred to the gear 25.
A, 25B, 25C, camshaft 26, cam 27, sector gear 28, and pinion 29, respectively, to transmit linear motion (see FIG. 2).

The winding head 3 is driven by the motor 24, and a cam 31 attached to the camshaft 26 moves an arm 33 fixed to a lever 32 in the biasing direction of a spring 33a. The feed pawl 35 is rotated in the opposite direction to cause an oscillating movement.
and a ratchet gear 37 by a pawl 36,
The predetermined tape t is wound by the intermittent rotation operation transmitted through the gear 38.

The sheet support plate 4 is driven by the motor 24, and a lever 4 is operated by a cam 41 attached to a camshaft 26 and a spring 42.
3 in a swinging motion, the notch groove 43a of this lever 43
The pinion 45 is rotated via the fan-shaped gear 44, and the operation shaft 46, which is integrally attached to the pinion 45, rotates the third roller together with the lower roller 18 attached to the sheet support plate 4. It is designed to be rotated back and forth between the state shown in the figure or the state where the lower roller 18 side is tilted downward (see FIGS. 2 and 3).

Further, the tape hanging member 5 is moved up and down by a motor 51 via a gear 52A, gears 52B, 52B, and a guide shaft 5 fixed to the base frame 1
A moving member 54 is movably attached to 3, and a gear 52B is installed between the two gears 52B, 52B in a direction to move the moving member 54 downward.
When the rotating torque becomes larger than necessary (described later) while the gears are rotating, a mating plate 55 is interposed between the gears 52 and 52 that causes a phenomenon. A first position detection sensor 56 is provided at the position to detect and stop the movement of the tape hanging member 5 when it moves upward.

The heating member 6 is formed into a rod shape as described above, and has a convex surface 6a facing the recess 5a of the tape hanging member 5, as shown in FIG. It is moved up and down by a means such as a solenoid, and when the tape t is wound around the sheet M, it is heated while in contact with the tape t, as will be described later. A turn roller 61 is provided between the heating member 6 and the lower roller 18 for guiding the tape t to the winding head 3 when the heating member 6 is at the uppermost position. At the position facing the tape hanging member 5, when the concave portion 5a of the tape hanging member 5 is in a position corresponding to the convex surface 6a of the heating member 6 as shown in FIG. and a third position detection sensor 63 that detects the movement of the tape hanging member 5 when it moves further downward from the position shown in FIG. 3. .

Furthermore, the camshaft 2 driven by the motor 24
Cam plates 64 and 65 are respectively attached to 6, and micro switches 66 and 67 are provided on these cam plates 64 and 65, and these micro switches 66 and 67 are in a relationship as shown in FIG. ing.

The effect will be explained below.

1 and 2 show the state before operation, and FIG. 5 shows the state at timing _t0 . In this state, both the clamping plates 2A and 2B are facing each other on the sheet supporting plate 4 which is supported almost horizontally, the tape t is attached to the tape head 11 with the brake released, and the coil spring 14 is Due to the biasing force, the guide roller 17 and the notch groove 2 of one of the clamping plates 2A
a, stretched between the lower rollers 18, and
The tape hanging member 5 is in a standby state facing upward, and the heating member 6 is facing downward.
"t ₀ ", when the paper sheet M is inserted between the two holding plates 2A and 2B and placed on the paper sheet support plate 4, and a command is issued to wrap the tape t, the motor 24 starts rotating. The camshaft 26 is rotated via the gears 25A, 25B, and 25C, and the cams 27, 31, 41 and the cam plates 64, 65 are rotated in the direction of the arrow in FIG. 2, respectively. When the cam plate 65 is slightly rotated at "t ₁ ", the micro switch 67 is turned "OFF" as shown in FIG. At "t ₂ ", the cam plate 65 is further rotated slightly, so that the micro switch 66 is also turned OFF, and the other clamping plate 2B moves one clamping plate 2A through the paper sheet M into the guide frame. 21A side, the tape t inserted into the notch groove 2a is bent in the thickness direction of the paper sheet M while sliding in contact with the paper sheet M, and the upper end of the paper sheet M and Wrap around the bottom edge. Both clamping plates 2A, 2B are moved by the cam 27 to the maximum toward the guide frame 21A side, and the notch groove 2b of the other clamping plate 2B is positioned on the opposing line of the tape hanging member 5 and the heating member 6. maintained for a period of time. " _t3 ", then when the cam plate 64 turns the micro switch 66 into the "ON" state, the motor 24 is stopped and the other motor 51 is started, and the rotation of this motor 51 is controlled by the gears 52A, 52.
B. The information is transmitted to the tape hanging member 5 via the clamping plate 55 and the gear 52, and the tape hanging member 5 starts to descend as shown by the arrow in FIG. 4, thereby being inserted into the notch groove 2b of the other clamping plate 2B. be done. Further, in response to the "ON" signal from the micro switch 66, the heating member 6 is moved upward by means such as a solenoid (not shown), and stands by in contact with or close to the tape t. "t ₄ ", the tape hanging member 5 is connected to the upper end of the paper sheet M and the guide roller 1 as shown in FIG.
Push down the tape t between 7 and
When the tapes t wound around paper sheets M are brought into contact with each other, the second position detection sensor 62 detects the descending state of the tape hanging member 5, stops the rotation of the motor 51, and starts heating. The member 6 is heated. Further, the solenoid 12 is energized by the "ON" signal from the position detection sensor 62, and the tape head 11 is brought into a braking state. At this time, as shown in FIG. 3, the tape t is stretched between the lower end of the paper sheet M and the turn roller 61, creating an overlapping portion, and this tape t
The overlapping portion of the heating member 6 is placed over the convex surface 6a of the heating member 6, and the tape hanging member 5 is supported by the tension of the tape t, and its downward movement is restricted, and the motor 51 rotates slightly due to inertia. Even if you continue to do so, the rotational torque increases and the gears 52B, 52B
A sliding phenomenon occurs on the mating plate 55 between the two, and the movement of the tape hanging member 5 is stopped while the overlapping portion of the tape t is pressed downward. By heating the heating member 6, the mutually contacting portions of the tape t are thermally melted and integrated within the range of the recess 5a of the tape hanging member 5. At this time, the maximum contact pressure acts on the portion of the heating member 6 that is in contact with the uppermost surface (convex surface 6a) due to the relationship between the concave portion 5a of the tape hanging member 5 and the heating member 6 having a curved cross section.
This portion is heated to the maximum and a thermal melting phenomenon occurs, causing separation on both sides of the convex surface 6a. That is, the third
In the figure, the paper sheets M are bound together by a tape t, and the tapes t above and below the turn roller 61 are adhered and the welding piece 7 is attached. “t ₅ ”, when tape t is cut, tape t
Even when the motor 51 is stopped, the tape hanging member 5 supported by the tension of the gears 52A, 5
It will descend by the amount of play in each part such as 2B. When the third position detection sensor 63 becomes "ON" due to the downward movement of the tape hanging member 5, the motor 5
1 is reversely rotated and the tape hanging member 5 is raised. At "t ₆ ", when the tape hanging member 5 rises slightly, the second position detection sensor 62 becomes "ON" again, and this detection signal causes the solenoid 12 to be released and the tape head 11 to be braked. The tape t is released and becomes free.

" _t7 ", when the tape hanging member 5 further rises to near its original position as shown in FIG. 1, the first position detection sensor 56 becomes "ON" and stops the reverse rotation of the motor 51. At the same time, the motor 24 is rotated again.

"t ₈ ", the rotation of this motor 24 causes the cam 2 to
7 gradually releases the fan-shaped gear 28, and the force in the direction of the arrow in FIG.
While A and 2B hold the bundled paper sheets M between them, they are pushed in the direction opposite to the arrow in FIG. 2 by the biasing force of springs 22A and 22B, and are gradually moved to the initial position. Further, by rotating the cam plate 64 again in the direction of the arrow in FIG. 2, the micro switch 66 is turned OFF.

When the camshaft 26 is further rotated in the direction of the arrow in _FIG . The sheet is bent in the direction of the sheet support plate 4 by the sheet support plate 4, and tension is generated. The coil spring 14 and the tension plate 15 respond to this tension and support the tape t while applying tension, and the paper sheet M supported by both the clamping plates 2A and 2B is returned to the paper sheet support plate 4. Then, one of the clamping plates 2A is stopped by a stopper (not shown) and returned to the original position shown in FIG. Also,
Before and after these actions, the feed pawl 35 and stop pawl 36 are operated by the rotation of the cam 31, and the winding head 3 rotates to wind up the tape t a little, and the welded piece 7 is
is wound up so as to be slightly separated from the lower roller 18 and turn roller 61 as shown in FIGS. 1 and 3. Further, the other clamping plate 2B is held in place by the spring 22 even after the movement of one clamping plate 2A is stopped.
Due to the biasing force B, the sheet M is returned slightly in the direction opposite to the arrow in FIG. 2 to release the sheet M. After this release, the cam 41 rotates the sheet support plate 4 to the position indicated by the chain line as shown by the arrow in FIG. By letting the type M slide down, it is discharged into a take-out part (not shown) or the like. When the paper sheet M is removed, the tension of the tape t stretched by the paper sheet M changes slightly, but the coil spring 14,
The tension on the tape t is compensated by the action of the tension plate 15 and the like. Also, the paper sheet support plate 4 is provided with a cam 4.
1. It is returned to the position shown in FIG. 1 by the spring 42.

At " _t10 ", the motor 24 continues to rotate, causing the camshaft 26 to rotate approximately one revolution, causing the cam plate 64 to turn the microswitch 66 to the "ON" state again. This "ON" signal causes the motor 24 to stop, and the solenoid 12 to be released, thereby freeing the tape t and returning to the "t ₀ " state. Thereafter, when another paper sheet M is placed on the paper sheet support plate 4 and the next command is issued, the same operation will be repeated again.

In the embodiment, the signal for stopping and starting the motors 24 and 51 was taken out with the micro switch 66 turned "ON" again as shown at "t ₃ ", but the micro switch 67 was set to "ON" again as shown at "t ₃ ". Alternatively, the solenoid 12 that brakes the tape head ₁₁ may be set to "OFF" at the rotation angle of the camshaft 26 to output the signal.
or t ₇ , or the second position sensor 62 is kept in the ``ON'' state between t <sub>4</sub> and t <sub>6</sub> and activated by this ``ON'' and ``OFF'' signals. You can also

As explained above, in the binding tape supply device for the paper sheet binding machine according to the present invention, the concave part of the tape hanging member is arranged above the overlapping part of the stretched tape, and the area of this concave part is heated. By heating the convex surface of the member from below, the overlapping part of the tape becomes thermally bonded, making it easy to set the thermally bonded area and melt it in the middle of the thermally bonded area. The tape can be reconnected at the same time as the current paper sheet is taken out.

In addition, when winding tape around paper sheets using a tape hanging member, the lower end of the tape hanging member is pressed against the overlapping part of the tape to prevent it from moving downward, and the tape is fused. Since the device detects the descent of the tape hanging member due to the release of the supporting force at the time, the structure is simple, and it is possible to reliably detect the completion of thermal adhesion of the tape and the end of cutting. This has the effect of increasing the reliability of the device by taking over the data.

[Brief explanation of the drawing]

The drawings show one embodiment of the invention.
The figure is a perspective view explaining the overall configuration, Figure 2 is a partially exploded perspective view of the drive mechanism, Figure 3 is a perspective view explaining how the tape is wound, and Figure 4 is explaining the drive of the tape hanging member. FIG. 5 is an explanatory diagram of the operation timing of each part. T...tape coil, t...tape, M...paper sheet,
2A, 2B...Holding plate, 2a, 2b...Notch groove, 3...
Winding head, 4...Paper support plate, 5...Tape hanging member, 5a...Concave portion, 6...Heating member, 6a...Convex surface, 1
1... Tape head, 61... Turn roller, 63...
Third position detection sensor.

Claims (1)

[Claims] 1. A pair of clamping plates 2A and 2B are provided above the paper sheet support plate 4, and the clamping plates 2A and 2B are opposite to each other.
A tape t is stretched between the tape coil T attached to the tape head 11 and the take-up head 3.
are inserted into the cutout grooves 2a and 2b, and the tape stretched vertically is inserted into the cutout groove 2a of one of the clamping plates 2A.
, the other clamping plate 2B is moved in the direction of one clamping plate 2A to clamp the paper sheet M loaded therebetween, and the tape is folded in the thickness direction of the paper sheet, and the other clamping plate Notch groove 2 of plate 2B
By inserting the tape hanging member 5 into the paper sheet b and pushing it down, the tape is wound around the paper sheet, and the overlapping portion of the tape is bound near the bottom of the other holding plate 2B. In the leaf binding machine, a turn roller 61 is provided in the vicinity of the paper support plate 4 to tension the tape between the lower end of the paper sheets being clamped, and the tape applying member 5 is used to hold the tape. By pressing the tape down onto the tape stretched during winding to make contact, a space is created between the pressed tape and the lower end of the tape, which is prevented from moving downward by straddling the overlapping part of the tape in contact. A heating member 6 is provided near the turn roller and has a convex surface 6a that heats the overlapping portion of the tape in the range of the downward concave portion from below to thermally bond them to each other and melts and cuts them. A position detection sensor 63 is provided on the side of the tape hanging member for detecting a phenomenon in which the tape hanging member moves downward due to release of supporting force due to tape tension when the tape is fused by the heating member. Binding tape adhesive device for paper sheet binding machines.