JPH0811830A - Binding machine for large bundle of paper leaf - Google Patents

Abstract

PURPOSE:To prevent a trouble that a binding tape is drawn from between plate members of a clamp plate from occurring in winding the binding tape around a group of small bundles. CONSTITUTION:A control part of a tape supply means detects movement of a group of small bundles in a holding direction (arrow B direction) on plate members 9A, 9B based on detection signals from photo interrupters 48A, 48B, and also controls feeding of a binding tape to a tape feed motor based on the movement of the plate members 9A, 9B.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention creates a large bundle by winding a binding tape in a cross shape on a small bundle group in which a predetermined number (10 bundles) of small bundles of 100 sheets of paper are stacked. And a large bundle binding machine for paper sheets.

[0002]

2. Description of the Related Art As a paper sheet large bundle binding machine for binding a binding tape around a predetermined number of small bundle groups, there is, for example, Japanese Patent Application No. 5-70568 filed by the applicant. This paper sheet large bundle binding machine can collectively receive a predetermined number of small bundles in a posture in which the longitudinal direction is horizontal,
And a turntable having a lift table that is rotatable in a horizontal plane and that can be lifted and lowered in the vertical direction, a tape supply unit that supplies a binding tape to the turntable side, and a binding tape that is supplied from the tape supply unit. Clamping means for holding and sandwiching the small bundle group from both sides, and an overlapping portion of the binding tape wound around the small bundle group provided so as to approach and separate from the small bundle group on the turntable. A heater for thermocompression bonding and a cutting and bonding means for cutting the binding tape after thermocompression bonding, and a pair of clamp rods provided so as to be closely spaced from each other and rotatable about an axis, respectively, are provided by the proximity of the clamp rods. A small bundle group is sandwiched between the clamp rods, and the direction of the small bundle group is changed from a horizontal posture in a longitudinal direction to a horizontal posture in a short direction. It is intended.

Further, the clamping means has a pair of clamping plates provided so as to be closely spaced from each other,
Among these clamp plates, one clamp plate is composed of a pair of plate members (composed of an inner plate member and an outer plate member) that move by a small amount between the overlapping position and the separating position. There is. Then, in the paper sheet large bundle binding machine having such a configuration, the motor of the tape feeding means is driven for a certain period of time between the plate members of the one clamp plate which are arranged at a minute interval to remove the tape from the tape roll. The fed binding tape is fed in, in this state, the outer plate member is moved toward the inner plate member, the binding tape is sandwiched between these plate members, and then the clamp plates are brought close to each other, A small bundle group placed on the turntable is sandwiched between these clamp plates.

Then, the binding tape is sandwiched between the plate members of one clamp plate, and the small bundle group is sandwiched between the pair of clamp plates. The binding tape supplied from the tape supply means is wound around the small bundle group, and then the overlapping portion of the binding tape wound around the small bundle group is thermocompression-bonded while being cut by the cutting adhesive means, whereby the small bundle group is formed. Wrap the binding tape around the length of the tape.

After that, after raising the elevating table and pulling out the clamp plate from the bundle of small bundles,
The clamp rods of the direction changing mechanism are brought close to each other to sandwich the small bundle group between the clamp rods (at this time, the clamp rods are
Clamping the longitudinal portion of the small bundle group and clamping the small bundle group at an eccentric position deviated from the center of the longitudinal portion), and further moving the lifting table downward in this state, the clamp rod The bundle of small bundles sandwiched between the two is rotated by its own weight, whereby the orientation of the bundle of small bundles on the turntable can be changed from a posture in which the longitudinal direction is horizontal to a posture in which the lateral direction is horizontal. . Then, thereafter, by repeating the above-mentioned winding operation of the binding tape, the binding tape is wound around the short bundle group in the lateral direction, whereby a large bundle obtained by binding the small bundle bundle into a cross shape is formed. Can be created.

In the above-mentioned operation of winding the binding tape, the binding tape is pulled out from the tape roll set in the tape feeding means by rotating both the turntable and the clamp plate.
At this time, a predetermined torque is applied to the binding tape so that the binding tape is not pulled out excessively. Further, a convex portion and a small hole are respectively provided on the surfaces of the pair of plate members forming the one clamp plate that face each other, and the convex portion and the small hole are engaged with each other. The binding tape is prevented from being pulled out from between the plate members when the binding tape is wound.

[0007]

By the way, in the above-mentioned paper sheet large bundle binding machine, the binding member fed from the tape roll is provided between the plate members of the one clamp plate arranged at a minute interval. The tape is fed in, and in this state, the outer plate member is moved toward the inner plate member so that the binding tape is sandwiched between these plate members, and then the clamp plates are brought close to each other, and between the clamp plates. , The small bundles placed on the turntable are sandwiched, but at this time, a brake is applied to the inner plate member to restrict its movement, whereby the inner plate member and the outer plate member are braked. The binding tape is sandwiched between the member and the member with a predetermined force. However, at this time, the braking force applied to the inner plate member is weak, so that the binding force between the inner plate member and the outer plate member is weak, and in addition, it is pulled out from the tape roll. Since a certain torque is applied to the binding tape, there is a problem that the binding tape comes off between the plate members when the small bundle group is clamped by the clamp plate.

In addition, the binding tape is sandwiched between the plate members of one of the clamp plates, and the small bundles are sandwiched between the clamp plates, and these clamp plates are rotated together with the turntable, whereby the tape feeding means. The binding tape is wound around the small bundle group while pulling out the binding tape from it, but at this time, the binding tape is torn from the engagement portion between the pull-out preventing convex portion provided on the plate member and the small hole. In some cases, the binding tape is pulled out from these plate members.

The present invention has been made in view of the above circumstances, and can prevent the trouble of pulling out the binding tape from between the plate members of the clamp plate in the work of winding the binding tape around the small bundle group. The purpose of the present invention is to provide a large bundle binding machine for paper sheets.

[0010]

In order to achieve the above object, according to the invention as set forth in claim 1, a tape supply means for supplying a binding tape to the table side on which a small bundle group is placed, and the tape supply means. Clamping means for holding the supplied binding tape and holding the small bundle group from both sides, and holding the binding tape by the clamping means and holding the small bundle group in the table. Paper which is wound around the small bundle group by being rotated together with the binding tape supplied from the tape feeding means, and the overlapping portion of the wound binding tape is adhered to bind the small bundle group. A large leaf bundling machine, wherein as the clamping means, a pair of clamp plates provided on a table for holding a small bundle group, and these clamp plates are driven in a direction of sandwiching the small bundle group. And a clamp plate driving mechanism, wherein one of the clamp plates is constituted by a pair of plate members, and the clamp driving mechanism holds the binding tape by bringing the pair of plate members into contact with each other. A moving means that is movably provided between a possible contact position and a minutely spaced apart position, and that is provided with a pair of clamp plates so as to be movable in the holding direction of the small bundle group, and the moving means. The tape feeding means is composed of a clamp plate drive motor for driving and a movement detecting means for detecting movement of one of the clamp plates formed by the plate members in the holding direction of the small bundle group. A binding tape feeding motor for feeding the tape, and feeding the binding tape to the binding tape feeding motor, and binding based on the movement of the plate member detected by the movement detecting means. Characterized in that it has a control unit for controlling the feeding of the-loop.

According to the second aspect of the present invention, the tape feeding means for feeding the binding tape to the table on which the small bundle group is placed, the binding tape supplied by the tape feeding means are held, and the small bundle is held. Clamping means having a pair of clamp plates for sandwiching the group from both sides, and the clamp plate of the clamping means rotates the clamp plate together with the table in a state where the binding tape and the small bundle group are sandwiched. Thus, the binding tape supplied from the tape feeding means is wound around the small bundle group, and the overlapped portion of the wound binding tape is adhered so that the small bundle group is bound. In the binding machine, one of the clamp plates is movable between a contact position at which the clamp plates can come into contact with each other to sandwich the binding tape and a spaced position that is slightly separated. Makes the binding tape is made of sandwich possible pair of plate members at the contact position, on the surface of each other facing of the plate member, characterized in that the friction member is provided.

According to the third aspect of the invention, the tape feeding means for feeding the binding tape to the table side on which the small bundle group is placed, the binding tape supplied from the tape feeding means are held, and the small bundle is held. And a clamp means for gripping the group from both sides, and in the state where the binding tape is clamped by the clamp means and the small bundle group is clamped, the clamp means is rotated together with the table to be supplied from the tape supply means. A large paper sheet bundle binding machine configured to wind a binding tape around a small bundle group and to bond the overlapped portion of the wrapped binding tape to bind the small bundle group, the clamping means serving as the clamping means. , A pair of clamp plates provided on the table for holding the small bundle group, and a clamp plate drive mechanism for driving the clamp plates in the holding direction of the small bundle group are provided. In the lamp plate, one clamp plate is composed of a pair of plate members, and the clamp drive mechanism has a contact position at which the pair of plate members come into contact with each other to sandwich the binding tape and a separated position at a minute distance. And a clamp plate drive motor for driving the pair of clamp plates and a pair of clamp plates so as to be movable in the direction of sandwiching the small bundle group, and a plate member. The tape supply means comprises a binding tape feeding motor for feeding the binding tape to the clamp plate, and a movement detecting means for detecting movement of one clamp plate in the holding direction of the small bundle group. And a control unit for feeding the binding tape to the binding tape feeding motor and controlling the feeding of the binding tape based on the movement of the plate member detected by the movement detecting means. On the surface of each other said plate member faces is characterized in that the friction member is provided.

[0013]

In the paper sheet large bundle binding machine according to the first aspect of the present invention, one clamp plate of the clamp plate is composed of a pair of plate members capable of holding the binding tape, and the movement detecting means of the clamp drive mechanism operates these members. The movement of the small bundle group in the plate member in the sandwiching direction is detected, and the controller of the tape supply means causes the binding tape feeding motor to feed the binding tape and the plate member detected by the movement detection means. Since the feeding of the binding tape is controlled based on the movement of the binding tape, the clamp plates are brought close to each other with the binding tape sandwiched between the plate members, and thereby the small bundle group is tried to be sandwiched between the clamp plates. In this case, no torque is applied when the binding tape is sent out. Therefore, in the paper sheet large bundle binding machine of the present invention, it is possible to prevent the occurrence of the trouble that the binding tape is pulled out from between the plate members of the clamp plate in the operation of winding the binding tape around the small bundle group. .

In the paper sheet large bundle binding machine according to the second aspect of the present invention, since the friction members are provided on the surfaces of the pair of plate members constituting one clamp plate which face each other, the binding tape is sandwiched by the plate members. In addition, when the clamp plate is held together with the small bundle group and the clamp plate is rotated together with the table, the binding tape held by the plate member is prevented from being pulled out by the friction member. It is also possible to prevent the occurrence of troubles such as the binding tape being torn and pulled out from the engaging portion between the pull-out preventing convex portion provided on the flat plate member and the small hole.

In the paper sheet large bundle binding machine according to a third aspect of the present invention, one clamp plate of the clamp plate is composed of a pair of plate members capable of holding the binding tape, and these are detected by the movement detecting means of the clamp drive mechanism. The movement of the small bundle group in the plate member in the sandwiching direction is detected, and the controller of the tape supply means causes the binding tape feeding motor to feed the binding tape and the plate member detected by the movement detection means. Since the feeding of the binding tape is controlled based on the movement of the binding tape, the clamp plates are brought close to each other with the binding tape sandwiched between the plate members, and thereby the small bundle group is tried to be sandwiched between the clamp plates. In this case, no torque is applied when the binding tape is sent out. Also,
In the present invention, since the friction members are provided on the surfaces of the pair of plate members forming the one clamp plate facing each other,
When the clamp plates are moved close to each other as described above, or when the clamp plates are rotated together with the table while the binding tape is sandwiched between the plate members and the small bundle group is sandwiched between the clamp plates, the friction member The binding tape sandwiched between the plate members is prevented from being pulled out by the plate member, and the binding tape is torn from the engaging portion between the pull-out preventing projection and the small hole provided in the plate member as in the related art. It is possible to prevent troubles from occurring. Therefore, in the paper sheet large bundle binding machine of the present invention, in the winding operation of the binding tape for the small bundle group, it is possible to prevent the occurrence of the trouble that the binding tape is torn and pulled out from between the plate members of the clamp plate. Becomes

[0016]

Embodiments of the present invention will be described with reference to FIGS. First, with reference to FIGS. 1 and 2 (a) to 5 (g), a schematic configuration of a paper sheet large bundle binding machine will be described together with its operation. The paper sheet large bundle binding machine shown in FIG. 1 has a placing means 2 having a turntable 1 on which a small bundle group M is placed.
A tape supply means 4 for supplying the binding tape 3 to the small bundle group M, a clamping means 5 for sandwiching the small bundle group M on the turntable 1, and a cutting and adhering means 6 for thermocompression bonding and cutting the binding tape 3. , A direction changing mechanism 7 for changing the posture of the small bundle group M
And are provided.

The components of the paper bundle binding machine will be described below. The mounting means 2 is rotated in a horizontal plane about a vertical axis and has a lift table 15 (see FIGS. 4 (e), 5 (g) and 6) capable of moving up and down in the vertical direction. The turntable 1 has a table 1 and a concave loading section 1A on which the small bundle group M is placed. The turntable 1 has a loading section 1A as shown in the drawing. First, a small bundle group M in which, for example, 10 small bundles formed by binding 100 sheets of paper are stacked, is collectively placed in a posture in which the longitudinal direction thereof is horizontal. In addition, a rotation driving unit 16 is provided below the turntable 1.
(See FIG. 6) is provided, and the rotation driving unit 16 allows the turntable 1 to rotate in a horizontal plane about a vertical axis. Also, turntable 1
An aligning plate 1B which is provided in the inside so as to be close to and away from the loading section 1A, contacts the end of the small bundle group M placed in the loading section 1A, and collects the small bundle group 1A. (Fig. 2
(A), see FIG. 7).

The tape supply means 4 is a tape roll 60.
A drive roller 63 for pulling out and guiding the binding tape 3 from (see FIG. 9), a tape feeding motor 69 (see FIGS. 9 and 10) for driving the drive roller 63, and the like. The binding tape 3 guided by 63 is supplied toward the clamp means 5 as shown in FIGS. 2 (a) and 4 (f).

The clamp means 5 includes a pair of clamp plates 9 and 10 provided on the turntable 1 and a group of small bundles M placed on the turntable 1 for the clamp plates 9 and 10.
Clamp plate drive mechanism 90 (see FIG. 6 to be described later) for moving 10 closer to and further away from each other in the direction of arrow AB is further provided. It is composed of a pair of plate members 9A and 9B that move a small amount between the separated positions. And in the clamp means 5 of such a structure,
As shown in FIG. 2A, first, with the plate members 9A and 9B of the clamp plate 9 separated from each other, the tape supply means 4 is driven to drive the plate members 9A and 9A of the clamp plate 9.
Bundling tape 3 is supplied between B and B, and then plate member 9A
And 9B are brought into contact with each other to sandwich the binding tape 3 between these plate members 9A and 9B, and the clamp plate 9 and the clamp plate 10 are brought close to each other, so that the clamp plate 9 and the clamp plate 10 are small in size. By sandwiching the bundle group M, in this state, as shown in FIG. 2B, the rotation driving unit 16 of the turntable 1 is driven to rotate the clamp plates 9 and 10 integrally with the turntable 1. Thus, the binding tape 3 is wound around the longitudinal direction of the small bundle group M.

The cutting and adhering means 6 is moved closer to and separated from the small bundle group M on the turntable 1 in the direction of arrow AB, and further moved in the direction of arrow CD in the state of being in close proximity, whereby A heater 11 for thermocompression bonding the binding tape 3 wound around the bundle group M and a heater 11 fixed near the heater 11 and moving in the direction of the arrow CD when the heater 11 moves in the small bundle group M.
It has a cutter 12 for cutting the binding tape 3 wound around and a heater driving unit 80 for moving the heater 11 in the directions of arrows AB and CD. Then, in such a cutting and bonding means 6, a small bundle group M
After the tying tape 3 is wound around the circumference (see FIGS. 2 (a) to 2 (b)), the heater 11 is moved in the direction of the arrow B to wrap the tying tape 3 in a single or doubled manner. Fix the overlapping part by thermocompression bonding, and further heat 11.
By moving the heater 11 in the direction of arrow D
The binding tape 3 is cut by the cutter 12 fixed to the cutter (see FIGS. 3C to 3D).

The direction changing mechanism 7 is shown in FIGS.
As shown in (e), the raising / lowering table 15 in the turntable 1 is moved upward, and the small bundle group M placed on the turntable 1 is lifted upward, whereby the bundle of small bundles M is bundled. To clamp plate 9/10 (at this time, plate member 9
Elevating means 17 (see FIG. 6) for pulling out a gap between A and 9B) and a small bundle group M are provided so as to be close to and away from each other and rotatable about an axis. The small bundle group M is lifted by the small bundle group M
A pair of clamp rods 13A and 13B for sandwiching the clamp rods from both sides to change the direction of the small bundle group M by 90 degrees, and a clamp rod drive mechanism 18 that drives these clamp rods 13A and 13B in the approaching and separating directions (FIG. 6). (See) and.
In addition, in the direction changing mechanism 7, the clamp rods 13A.
As shown in FIG. 4 (e), 3B is brought closer to the stacking direction of the small bundle group M (the direction of arrow AB in FIG. 4 (e)) to sandwich the small bundle group M.

The clamp rods 13A and 13B are shown in FIG.
As shown in (e), at the position where the turntable 1 lifts the small bundle group M, the position slightly displaced from the center position along the length direction of the small bundle group M along the same direction (that is, the center of gravity is The small bundle group M is sandwiched at the (disengaged position), and the lifting table 15 in the turntable 1 is further held with the clamp rods 13A and 13B sandwiching the small bundle group M.
When is lowered, it becomes possible to position the small bundle group M so that the small bundle group M rotates 90 degrees by its own weight and the short side becomes horizontal (FIG. 4 ( e) to FIG. 4F). Further, when the small bundle group M is arranged so that the short side is horizontal, the lifting table 15 in the turntable 1
And the small bundle group M is placed on the upper surface thereof, and in this state, the operation of winding the binding tape 3 around the short side of the small bundle group M is performed in the same manner as described above. By Figure 5
As shown in (g), it is possible to obtain a small bundle group M in which the binding tape 3 is wound in a cross shape.

Next, when the binding tape 3 is wound (FIG. 2A).
(See (b)), the small bundle group M on the turntable 1
6 shows a concrete configuration of the clamp means 5 for holding the tape and the tape supply means 4 for supplying the binding tape 3 to the small bundle group M.
~ It demonstrates in detail with reference to FIG. (1) Clamping means 5 As shown in FIG. 6, the clamping means 5 is provided on the table substrate 20 of the mounting means 2, and the table substrates 20 are provided in plural on the frame 21 of the machine body 100. It is rotatably provided in a horizontal plane by a pulley 25 at the upper end of the column 24 on a substrate 23 fixed via the column 22.

The clamp plates 9 and 10 and the clamp plate drive mechanism 90 provided on the table substrate 20 will be described in detail. As shown in FIG. 6, a guide shaft 27 is provided on the table substrate 20 via a support member 26. The guide block 27 is fixed horizontally, and the slide block 28 and the slide block 29 are sandwiched between the guide shaft 27 and the center portion of the table substrate 20.
30 is provided slidably in the direction of arrow AB.
Racks 31 and 32 are provided below the sliding blocks 28 and 30.
The racks 31 and 32 are screwed to a gear 34 that is relatively rotatable around a support shaft 33 that supports and raises and lowers the lifting table 15. On the other hand, a clamp plate drive motor 36 is fixed to the frame 21, and a gear 38 fixed to an output shaft 37 of the clamp plate drive motor 36 is screwed to a gear 34 around the support shaft 33. Therefore, as shown in FIG. 7, when the clamp plate drive motor 36 is driven, the gear 34 is rotated in the forward and reverse directions, whereby the sliding block 28 and the sliding block 30 move in the directions in which they are close to each other, and are also separated from each other. It will be moved in the direction of.

The clamp plate 10 is provided on the surface of the fixing member 40 fixed on the sliding block 28 in the direction of the central portion through a plurality of biasing members 41. A plate member 9A is fixed on the sliding block 29, and a plate member 9B is fixed on the sliding block 30 via a fixing member 42. These plate members 9A and 9B constitute the clamp plate 9 described above. Has been done. The plate member 9B of the clamp plate 9 is set to have a narrower width than the plate member 9A or the clamp plate 10.

A fixing member 43 is fixed on the rack 32. The fixing member 43 is slidably supported along the guide shaft 27 in the arrow A-B direction, and abuts on the sliding block 29 when the rack 32 moves in the arrow A direction. And presses the sliding block 29 in the same direction. Since a load is applied to the sliding block 29 by the load means 50, the small bundle group M to be set is set until the sliding block 29 is pressed in the arrow A direction by the fixing member 43.
It is in a position to hold.

Next, the load means 50 for applying a constant load to the plate member 9A of the clamp plate 9 will be described. The load means 50 has a fixing member 51 at the bottom of the sliding block 29 as shown in FIG. The sliding clutch 53 is fixed by a sliding plate 53 having a long hole 52 extending in the direction of arrow AB, and a sliding clutch 54 inserted into the long hole 52 of the sliding plate 53. The sliding plate 53 is sandwiched from above and below by a predetermined force to generate a predetermined frictional force on the sliding plate 53, and the sliding block 29 is caused by the frictional force.
Regulate the movement of.

In the above construction, the clamp plates 9 and 10 are separated from each other, and the plate members 9A and 9B of the clamp plate 9 are separated from each other (the load of the load means 50 acting on the plate member 9A). According to: As will be described later), FIG.
As shown in FIGS. 4 (a) and 4 (f), the binding tape 3 is supplied between the plate members 9A and 9B. Thereafter, the clamp plate drive motor 36 drives the gear 34 so that When rotated in the clockwise direction, the rack 32 moves in the direction of arrow B, and the sliding block 30 fixed to the rack 32 is moved.
At the same time, the plate member 9B of the clamp plate 9 moves in the same direction. Further, when the gear 34 rotates counterclockwise as viewed from FIG. 7 and the rack 32 moves in the direction of arrow B, the fixing member 43 fixed on the rack 32 also moves in the same direction,
As a result, the fixing member 43 is separated from the sliding block 29,
The plate member 9A on the sliding block 29 becomes free to move in the same direction.

As a result, the plate member 9B of the clamp plate 9 comes close to the plate member 9A, and at the same time, these plate members 9A and 9B.
When the sliding block 30 and the plate member 9B come into contact with the sliding block 29 and the plate member 9A, the sliding block 29 and the plate member 9A are moved by a predetermined force in the direction of the arrow B. Press to move. In this case, since a predetermined load is applied to the sliding block 29 by the load means 50, the plate member 9B of the clamp plate 9 presses the plate member 9A with a predetermined force, whereby the plate member 9 is formed.
The binding tape 3 between A and A is clamped with a predetermined force. on the other hand,
When the gear 34 is rotated counterclockwise as viewed in FIG. 7 by driving the clamp plate drive motor 36, the clamp plate 10 moves in the direction of arrow A together with the sliding block 28,
As a result, the clamp plate 9 and the clamp plate 10 move in a direction in which they are close to each other, and the small bundle group M placed on the turntable 1 can be sandwiched between these clamp plates 9 and 10.

On the other hand, in a state where the clamp plates 9 and 10 are close to each other, when the gear 34 is rotated clockwise as viewed from FIG. 7 by the drive of the clamp plate drive motor 36, the rack 32 is moved in the direction of arrow A. To the clamp plate 9 together with the sliding block 30 on the rack 32.
The plate member 9A moves in the direction of arrow A. The gear 34 is shown in FIG.
By turning clockwise, the rack 32
Is moved in the direction of arrow A, the fixing member 43 fixed on the rack 32 and slidably supported in the direction of arrow AB along the guide shaft 27 causes the sliding block 29 to move in the direction of arrow A. However, at this time, the sliding block 29 is restricted in its movement by the slip clutch 54 of the load means 50, so that the plate member 9A of the clamp plate 9 is pressed.
Of the clamp plate 9 is slower than that of the plate member 9B, so that a predetermined space is formed between the plate members 9A and 9B of the clamp plate 9.

Further, due to the space formed between the plate members 9A and 9B of the clamp plate 9 as shown in FIG.
As shown in (a) and FIG. 4 (f), the binding tape 3 can be supplied between the plate members 9A and 9B. Furthermore, when the gear 34 rotates clockwise as viewed from FIG. 7, the clamp plate 10 moves in the direction of arrow B via the rack 31, the sliding block 28, the fixing member 40, and the biasing means 41. As a result, the clamp plate 9 (plate members 9A and 9B) and the clamp plate 10 are separated from each other, and the clamp plates 9 and 10 are separated from each other.
The pinched state of the small bundle group M due to is released.

As shown in FIGS. 6 and 7, the clamp plate 9
A plurality of convex portions 44 are provided in the plate member 9B in the vertical direction,
The plate member 9A of the clamp plate 9 is provided with a small hole 45 with which the convex portion 44 can be engaged. Further, a sheet-like friction member 46 made of a rubber material or the like is attached to the surface of the plate member 9B at a position avoiding the convex portion 44. With such a configuration, when the plate members 9A and 9B of the clamp plate 9 are in contact with each other and overlapped with each other, the convex portion 44 and the small hole 45 engage with each other, and the friction member 46.
Is brought into surface contact with the surface of the plate member 9A, the binding tape 3 is strongly sandwiched between the plate member 9A and the plate member 9B, and the convex portion 44 and the small hole 45 form the friction member 46.
Since they are not completely engaged with each other, the binding tape 3 between the plate members 9A and 9B has a convex portion 4
The engagement between the holes 4 and the small holes 45 prevents them from breaking.

On the other hand, as shown in FIG. 6, the output shaft 37 of the clamp plate drive motor 36 is provided with a rotary encoder 85 for detecting the movement and the direction of the clamp plates 9 and 10. This rotary encoder 85
Is composed of a disk 47 fixed to the output shaft 37 together with the gear 38 described above, and photo interrupters 48A and 48B which are supported by a support portion (not shown) on the frame 21 of the machine body 100 and detect the rotation of the disk 47. Is.
As shown in FIG. 8, the disks 47 are configured in the same manner as the first slit group 49A and the slit group 49A, which are provided at equal intervals in the circumferential direction and whose intervals are equal to the slit width. And a second slit group 49B provided on the outer circumference different from the slit group 49A, and the slits of the slit group 49A and the slit group 49B are the same along the outer circumferential direction from the center of the disk 47. The slits are not arranged, but the slits are displaced from each other by ½ of the slit width in the circumferential direction. In addition, the photo interrupter 48A / 4
8B are arranged on the same line from the center of the disk 47 along the outer peripheral direction, and each slit group 49 is arranged as shown in FIG. 8B.
A and 49B are detected individually.

The photo interrupters 48A and 48B
10 is supplied to the control section 77 of the tape supply means 4 as shown in FIG. 10, and the control section 77 detects the slit groups 49A and 49B.
Based on the detection signals of 8A and 49B, the movement of the disk 47 is detected, and at the same time, the disk 47 is rotating, that is, the clamp plates 9 and 10 are moving in the direction of sandwiching the small bundle group M, or the small bundle group M. It is detected whether or not it is moving in the direction to release the clamp. Specifically, by arranging the slit groups 49A and 49B and the photo interrupters 48A and 48B as described above, the photo interrupters 48A and 48A
The slit detection pattern of 48B has four patterns as schematically illustrated in FIG. 8C, and the patterns are detected in a predetermined order (for example, M
When the slit groups 49A and 49B move in the clockwise direction and when the slit group moves in the counterclockwise direction, m1.m2
By utilizing the fact that the output patterns of the photo interrupters 48A and 48B are different as shown in (4), it is possible to judge not only the movement of the disk 47 but also the rotation direction thereof. The rotary encoder 8 for detecting the movement and the movement direction
The configuration of 5 is not limited to the above configuration, and the movement and the moving direction can be detected by other configurations, and this technique is a known technique.

(2) Tape supplying means 4 As shown in FIG. 9, a small bundle group M is provided on the front surface of the machine body 100.
A tape roll 60 wound with a tying tape 3 for tying the tape is attached. The center of the tape roll 60 is supported by a shaft 61 extending along the front-rear direction of the machine body 100, and the binding tape 3 pulled out from the tape roll 60 is transferred from a vertical direction to a horizontal direction by a relay roller 62. After the direction in which the binding tape 3 is stretched is changed, the drive roller 63 and the drive roller 63
It is designed to be fed between the feed rollers 64 and 65 which are driven by.

The drive roller 63, as shown in FIG.
A vertical shaft 67 is rotatably supported by a bearing 66 on the frame 21 of the machine body 100, and is fixed to the upper end of the vertical shaft 67. A gear 68 is fixed to the lower end of the shaft 67. On the other hand, a gear 71 is fixed to the output shaft 70 of the tape feeding motor 69 fixed to the frame 21 of the machine body 100, and when the gear 71 and the gear 68 mesh with each other, the driving force of the tape feeding motor 69 is increased. The binding tape 3 is transmitted to the drive roller 63, whereby the binding tape 3 is fed and taken in (described later). Further, the gear 71 is connected to a torque limiter 72 provided above the gear 71, and the torque limiter 72 is connected to the gear limiter 72.
Thus, torque is applied to the drive roller 63 only when the drive roller 63 is rotated counterclockwise (feeding direction) as viewed from FIG. 9, and the winding of the binding tape 3 shown in FIG. In the processing, the binding tape 3 can be bound around the small bundle group M with appropriate strength.

Further, as shown in FIG. 9, the drive roller 63
Binding tape 3 unrolled by the counterclockwise rotation of
Is guided by the guide walls 73 and 74 and the feed roller 75 provided at the outer peripheral position of the turntable 1, and is further guided by the guide member 76 arranged on the turntable 1 (see FIG. 2A). The state shown in FIG. 4 (f) is extended into the gap between the plate member 9B and the plate member 9A of the clamp plate 9 which is on standby.
The guide member 76 is provided so as to be vertically movable between a position placed on the upper surface of the turntable 1 and a position arranged above the turntable 1. It is supposed to be done by. The guide member 76 is shown in FIGS. 2 (a) and 4 (f).
The binding tape 3 to the plate member 9B of the clamp plate 9 as shown in FIG.
In the case where it is extended between the plate and the plate member 9A, it is located at the position mounted on the upper surface of the turntable 1, and is arranged in the raised position when other processing is performed. .

Next, the controller 77 (see FIG. 10) of the tape feeding motor 69 for driving the drive roller 63 will be described. The control unit 77 mainly performs the following (1) and (2) controls. (1) When the plate members 9A and 9B of the clamp plate 9 are in a state of being separated from each other (the state shown in FIG. 2A), the tape feeding motor 69 keeps the drive roller 63 in a predetermined counterclockwise direction. These plate members 9A and 9B are driven for time.
Bundling tape 3 is supplied between and. The fixed time at this time is determined by measuring in advance how much the tape feeding motor 69 should be driven to reach the tip of the binding tape 3 between the plate members 9A and 9B.

(2) The binding tape 3 is supplied between the plate members 9A and 9B of the clamp plate 9, and then the clamp plate drive motor 36 is driven to hold the small bundle group M.
When the plate member 9B of the clamp plate 9 and the clamp plate 10 are moved toward each other, the tape feeding motor 69 is driven based on the detection signals of the photo interrupters 48A and 48B, and the tape feeding motor 69 operates. Adjust the rotation speed. Specifically, the control unit 77
On the basis of the detection signals of the photo interrupters 48A and 49B that detect the slit groups 49A and 49B, the clamp plates 9 and 10 are moving in a direction to sandwich the small bundle group M (the plate member 9B of the clamp plate 9 is When it is determined that the clamp plate 10 is moving in the arrow B direction), the tape feeding motor 69 is moved in the feeding direction of the binding tape 3 in accordance with the moving speed of the plate member 9B of the clamp plate 9. To drive. The rotation speed of the tape feeding motor 69 is
Only when it is determined that the clamp plates 9 and 10 are moving in the direction of holding the small bundle group, the plate member 9B of the clamp plate 9 is formed.
Set the rotation speed according to the moving speed of
If the feeding speed of all the binding tapes 3 in the bundling process of the small bundle group M is set in advance to the speed corresponding to the moving speed of the plate member 9B of the clamp plate 9, the rotation speed of the tape feeding motor 69 may be set. good.

The control unit 77 drives the tape feeding motor 69 based on the detection signals of the photo interrupters 48A and 48B, and then the photo interrupters 48A.
The drive of the tape feeding motor 69 is stopped on condition that the pulsed detection signal is not output from 48B. In the control unit 77, the above (1)
In addition to the control of (2), after the binding tape 3 is cut as shown in FIG. 3C, control for driving the tape feeding motor 69 in the winding direction of the binding tape 3 for a predetermined time is also performed.

According to the paper sheet large bundle binding machine as described in detail above, the pair of plate members 9A, which can hold the binding tape 3 between the clamp plates 9 and 10, by the clamp plates 9 and 10.
9B, photo interrupter 48A / 48B
Based on the detection signal of
Detects movement of the clamp plate 9 in the holding direction (arrow B direction) of the small bundle group on the plate member 9B, and based on the movement of the plate member 9B, feeds the binding tape 3 to the tape feeding motor 69. Therefore, the clamp plates 9 (9A and 9B) and 10 are brought close to each other while the binding tape 3 is sandwiched between the plate members 9A and 9B. When trying to sandwich the small bundle group, the torque of the drive roller 63 is not applied to the binding tape 3, and thus the trouble that the binding tape 3 is pulled out from the plate members 9A and 9B can be prevented. it can.

Further, in the above-described paper sheet large bundle binding machine, the surface of the plate member 9A constituting one clamp plate 9 and the surface on the side in contact with the plate member 9B is made of a rubber material or the like. Since the sheet-like friction member 46 is attached, the clamp plates 9 and 10 are turned in a state where the binding tape 3 is sandwiched between the plate members 9A and 9B and the small bundle group is sandwiched between the clamp plates 9 and 10. When the table 1 is rotated together with the table 1 (see FIG. 2B), the binding member 3 held between the plate members 9A and 9B is prevented from being pulled out by the friction member 46, and the convex portion 44 and the small hole 45 are prevented. Is
Since the friction member 46 does not completely engage with the friction member 46, the binding tape 3 between the plate member 9A and the plate member 9B is not broken by the engagement between the convex portion 44 and the small hole 45. As described above, it is possible to prevent the trouble that the binding tape 3 is broken during the winding operation of the binding tape 3 and the binding tape 3 is pulled out from the plate members 9A and 9B. Therefore, in the paper sheet large bundle binding machine of the present invention, when the binding tape 3 is wound around the small bundle group,
It is possible to prevent the trouble that the binding tape 3 is pulled out from between the plate members 9A and 9B of the clamp plates 9 and 10 in advance.

In the above embodiment, the plate member 9A of the clamp plate 9 is provided with the convex portion 44, and the plate member 9B is provided with the convex portion 4.
4, a sheet-like friction member 46 made of a rubber material or the like is attached at a position avoiding the convex portion 44 on the surface of the plate member 9A after providing a small hole 45 capable of engaging with the friction member 4. The member 46 may be attached to a position avoiding the small hole 45 on the surface of the plate member 9B. Further, the binding tape 3 is sandwiched between the plate members 9A and 9B only by the frictional force of the friction member 46, and when the binding tape 3 is wound (in the case of FIG. 2B), the binding tape 3 is a plate. As long as it is prevented from being pulled out from the members 9A and 9B, the convex portion 44 and the small hole 45 of the clamp plate 9 are provided.
May be omitted.

In the above embodiment, the movement of the clamp plate 9 is detected by detecting the rotation of the output shaft 37 of the clamp plate drive motor 36, but the present invention is not limited to this. The movement of the clamp plate 10 may be directly detected.

In the above embodiment, the clamp plate drive mechanism 90 includes the support member 26, the guide shaft 27, the sliding blocks 28 to 30, the racks 31 and 32, the gear 34, and the output shaft 3.
7. Clamp plate drive motor 36. Further, the support member 26, the guide shaft 27, the sliding blocks 28 to 30, which are driven by the clamp plate drive motor 36,
The racks 31 and 32, the gear 34, and the output shaft 37 constitute the "moving means" in the claims. Further, the rotary encoder 85 including the disk 47 and the slit groups 49A and 49B of the embodiment serves as "movement detecting means" described in the claims.

[0046]

As described above in detail, in the paper sheet large bundle binding machine according to the first aspect, one clamp plate of the clamp plate is composed of a pair of plate members capable of holding the binding tape, and the clamp drive is performed. The movement detecting means of the mechanism detects the movement of the small bundle group in the plate member in the sandwiching direction, and the control unit of the tape supply means causes the binding tape feeding motor to feed the binding tape. Since the feeding of the binding tape is controlled based on the movement of the plate member detected by the movement detecting means, the clamp plates are brought close to each other with the binding tape sandwiched between the plate members, whereby No torque is applied when the binding tape is sent out when the small bundle group is to be sandwiched. Therefore, in the paper sheet large bundle binding machine of the present invention, it is possible to prevent the occurrence of the trouble that the binding tape is pulled out from between the plate members of the clamp plate in the operation of winding the binding tape around the small bundle group. .

In the paper sheet large bundle binding machine according to the second aspect, since the friction members are provided on the surfaces of the pair of plate members constituting one clamp plate which face each other, the binding tape is sandwiched by the plate members. In addition, when the clamp plate is held together with the small bundle group and the clamp plate is rotated together with the table, the binding tape held by the plate member is prevented from being pulled out by the friction member. It is also possible to prevent the occurrence of troubles such as the tying of the binding tape from the engaging portions of the pull-out preventing projections and the small holes provided on the flat plate member.

In the paper sheet large bundle binding machine according to a third aspect of the present invention, in the clamp plate, one clamp plate is constituted by a pair of plate members capable of holding the binding tape, and the movement detecting means of the clamp drive mechanism detects these. The movement of the small bundle group in the plate member in the sandwiching direction is detected, and the controller of the tape supply means causes the binding tape feeding motor to feed the binding tape and the plate member detected by the movement detection means. Since the feeding of the binding tape is controlled based on the movement of the binding tape, the clamp plates are brought close to each other with the binding tape sandwiched between the plate members, and thereby the small bundle group is tried to be sandwiched between the clamp plates. In this case, no torque is applied when the binding tape is sent out. Also,
In the present invention, since the friction members are provided on the surfaces of the pair of plate members forming the one clamp plate facing each other,
When the clamp plates are moved close to each other as described above, or when the clamp plates are rotated together with the table while the binding tape is held by the plate members and the small bundle group is held by the clamp plates, the friction member The binding tape sandwiched by the plate member is prevented from being pulled out, and the binding tape is ruptured from the engaging portion of the pull-out preventing convex portion and the small hole provided in the plate member as in the related art. It is possible to prevent troubles from occurring. Therefore, in the paper sheet large bundle binding machine of the present invention, in the winding operation of the binding tape for the small bundle group, it is possible to prevent the occurrence of the trouble that the binding tape is pulled out from between the plate members of the clamp plate. .

[Brief description of drawings]

FIG. 1 is a plan view showing a schematic configuration of a paper sheet large bundle binding machine that is an embodiment of the present invention.

2A and 2B are operation explanatory views (a) and (b) of the large sheet bundle binding machine.

3A and 3B are operation explanatory diagrams (c) and (d) subsequent to FIG. 2 of the paper sheet large bundle binding machine.

FIG. 4 is an operation explanatory diagram (e) (f) subsequent to FIG. 3 of the paper sheet large bundle binding machine.

FIG. 5 is an operation explanatory diagram (g) following FIG. 4 of the paper sheet large bundle binding machine.

FIG. 6 is a front view showing the clamp means 5 in detail.

7 is a plan view of the clamp means 5 shown in FIG.

FIG. 8 is a plan view showing a disk 47 detected by photo interrupters 48A and 48B.

FIG. 9 is a plan view showing a tape supply unit 4.

10 is a drive roller 6 of the tape supply means 4 shown in FIG.
FIG.

[Explanation of symbols]

 M small bundle group 1 turntable (table) 2 mounting means 3 bundling tape 4 tape supply means 5 clamp means 6 cutting adhesive means 7 direction changing mechanism 9 clamp plate (one clamp plate) 9A plate member 9B plate member 10 clamp plate 36 Clamp plate drive motor 46 Friction member 47 Disk 48A Photo interrupter 48B Photo interrupter 49A Slit group 49B Slit group 60 Tape roll 69 Tape feeding motor 77 Control section 85 Encoder (movement detection means) 90 Clamp plate drive mechanism

Claims (3)

[Claims] 1. A tape supply means for supplying a binding tape to a table on which a small bundle group is placed, a binding tape supplied by the tape supply means, and a small bundle group held from both sides. Clamping means, wherein the binding tape is clamped by the clamping means and the small bundle group is clamped, and the clamping means is rotated together with the table, so that the binding tape supplied from the tape supply means is bundled in small bundle groups. A large sheet bundle bundling machine, which is configured to bundle the small bundle group by wrapping the bundle around the sheet and gluing overlapping portions of the bundled tape after the winding, and is provided on the table as the clamping means. A pair of clamp plates for holding the small bundle group together, and a clamp plate drive mechanism for driving the clamp plates in the holding direction of the small bundle group. The clamp plate is composed of a pair of plate members, and the clamp drive mechanism is arranged between a contact position where the pair of plate members are in contact with each other and can sandwich the binding tape and a spaced position which is slightly separated. And a pair of clamp plates that are movable in the holding direction of the small bundle group, a clamp plate drive motor that drives the moving unit, and a plate member. Of the clamp plate for detecting the movement of the small bundle group in the holding direction, the tape feeding means for feeding the binding tape to the clamp plate, and a binding tape feeding motor for feeding the binding tape. While feeding the binding tape to the motor,
A large paper sheet bundle binding machine, comprising: a control unit that controls the feeding of the binding tape based on the movement of the plate member detected by the movement detection means. 2. A tape supply means for supplying a binding tape to the table side on which the small bundle group is placed, a binding tape supplied by the tape feeding means, and a small bundle group held from both sides. Clamping means having a pair of clamp plates, wherein the clamping plates are clamped by the clamping plates of the clamping means and the small bundle group is clamped, and the clamping plates are rotated together with the table to supply tape. A paper sheet large bundle binding machine configured to bind the binding tape supplied from from around a small bundle group and bind the overlapping portion of the wound binding tape to bind the small bundle group, In the clamp plate, one of the clamp plates is movable between a contact position where they can come into contact with each other to sandwich the binding tape and a spaced position where they are slightly separated from each other. Flop to be formed of a sandwich possible pair of plate members, the sheet Daitaba binding machine which is a plane each other facing of the plate member, characterized in that the friction member is provided. 3. A tape supply means for supplying a binding tape to the table side on which the small bundle group is placed, a binding tape supplied by the tape supply means, and a sandwiching of the small bundle group from both sides. Clamping means, wherein the binding tape is clamped by the clamping means and the small bundle group is clamped, and the clamping means is rotated together with the table, so that the binding tape supplied from the tape supply means is bundled in small bundle groups. A large sheet bundle bundling machine, which is configured to bundle the small bundle group by wrapping the bundle around the sheet and gluing overlapping portions of the bundled tape after the winding, and is provided on the table as the clamping means. A pair of clamp plates for holding the small bundle group together, and a clamp plate drive mechanism for driving the clamp plates in the holding direction of the small bundle group. The clamp plate is composed of a pair of plate members, and the clamp drive mechanism is arranged between a contact position where the pair of plate members are in contact with each other and can sandwich the binding tape and a spaced position which is slightly separated. And a pair of clamp plates that are movable in the holding direction of the small bundle group, a clamp plate drive motor that drives the moving unit, and a plate member. Of the clamp plate for detecting the movement of the small bundle group in the holding direction, the tape feeding means for feeding the binding tape to the clamp plate, and a binding tape feeding motor for feeding the binding tape. While feeding the binding tape to the motor,
A control unit for controlling the feeding of the binding tape based on the movement of the plate member detected by the movement detecting means, and a friction member is provided on the surfaces of the plate members facing each other. Large bundle binding machine for paper sheets.