JP3602271B2 - Tape binding device - Google Patents

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a tape bundling device that winds and binds a tape made of paper or a synthetic resin around a test bundle formed by stacking a large number of bills, various cards, envelopes, and the like.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, as a small binding device for binding banknotes or the like, a binding tape having at least one surface which is heat-adhesive is wound around an object to be bound, and the outer surface of the winding start portion and the inner surface of the winding end portion are overlapped. Then, by pressing a heated pressing portion heated by a heater against the polymerized portion and thermally bonding the polymerized portion with a thermoplastic resin applied to the tape, a material for binding the object to be bound is provided. (See, for example, Japanese Patent Publication No. 62-7041).
[0003]
In this bundling device, the small loop formed at the end of the tape by rotating while holding the end of the tape is expanded by feeding the tape from the rewinding side, and a predetermined loop along the inner surface of the guide plate is formed. After the loop is formed, an object to be tied is arranged in the loop, and the loop is narrowed to bind the object to be tied.
Further, in the above-mentioned binding device, the receiving plate receiving the lower surface of the object to be bound and the overlapped portion of the heat-fusible tape wound around the object to be bound are pressed against the lower surface of the receiving plate to thermally fuse each other. A heater to be attached, a clamping member that clamps the tape between the loop and the fixing member on the side opposite to the winding side after the loop is narrowed, and an auxiliary pressing portion that presses the overlapped portion to the lower surface of the receiving plate to maintain the overlapped state. And are provided.
[0004]
[Problems to be solved by the invention]
However, since the cantilever-supported receiving plate is repeatedly lifted by the heating pressing portion and the auxiliary pressing portion, there is a tendency that warpage occurs such that the distal end portion is lifted by aging. When the receiving plate is warped as described above, the pressing of the heating pressing portion to the tape overlapping portion becomes nonuniform, and the heat fusion is incomplete, resulting in a problem of poor binding.
[0005]
In order to prevent such a situation, it is necessary to replace the receiving plate after a predetermined use period has elapsed, or to perform maintenance such as shaving the upper surface of the heating press portion along the deformed receiving plate.
Therefore, an object of the present invention is to provide a tape binding device which can prevent a binding failure caused by warpage of a receiving plate and does not require maintenance such as replacement of the receiving plate.
[0006]
[Means for Solving the Problems]
In order to solve the above-mentioned problem, a tape binding device according to claim 1 is cantilevered by an apparatus main body, and extends along a lower surface of a material to be bound at a front position for receiving a material to be bound and a rear position for retracting from the material to be bound. Heat-pressing that heat-bonds a long receiving plate that is advanced and retracted, and the overlapped portion of the heat-fusible tape wound around the object to be bound, elastically pressing the receiving plate at the front position. Part, and a supporting position that abuts on the upper surface of the free end of the receiving plate at the front position to restrict the lifting of the free end, and is supported by the apparatus main body so as to be displaceable into a tilting position inclining forward of the apparatus main body. It is characterized by comprising a regulating member and means for holding the regulating member at a regulating position with a predetermined holding force.
[0007]
In the above configuration, since the upper surface of the free end of the receiving plate at the front position, which is pushed up from below by the heating pressing unit, can be held down by the regulating member, the receiving plate does not warp. Therefore, it is possible to prevent poor heat fusion due to the warpage of the receiving plate, and hence poor binding.
Usually, the regulating member is held at the regulating position with a predetermined holding force.However, when the receiving plate advances to the front position, an obstacle, for example, a finger is placed between the receiving plate and the regulating member. Even if it is pinched, the regulating member escapes so as to incline toward the front side of the apparatus main body. Therefore, the device is not damaged and is safe.
[0008]
Here, the predetermined holding force for holding the restricting member in the restricting position is such that the pinched finger does not hurt but does not unnecessarily tilt the restricting member.
If the means for holding the regulating member at the regulating position with the prescribed holding force includes an elastic member for urging the regulating member to rotate, the structure is simple and the setting of the prescribed holding force is easy. Is preferred.
[0009]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.
FIG. 1 is a partially cutaway perspective view of a tape binding device as one embodiment of the present invention. In the figure, the upper surface of the apparatus main body 1 is formed by a table 2. The table 2 is for placing an object to be bound made of a stack of paper or the like, and is divided into a rear table 2a and a front table 2b, and a passage groove 3 is formed between the two. ing. The passage groove 3 allows a binding tape to pass therethrough during the winding operation. The front table 2b is formed integrally with the front cover 4 of the apparatus main body 1. The front cover 4 is opened integrally with the front table 2b by tilting forward from the upright state as shown in FIG. 1 around the axis L at the lower end thereof. Thereby, the inside of the apparatus main body 1 can be easily inspected. The click structure or the like is used between the front cover 4 and the apparatus main body 1 so that the front cover 4 is held in a closed state shown in FIG. 1 with a predetermined holding force.
[0010]
In the upper part of the front cover 4, a finger catching groove 4a for catching a finger when opening the front cover 4 is formed. Reference numeral 4b denotes a transparent window through which the remaining amount of the binding tape roll can be checked.
Guide frames 5 and 6 projecting upward from the apparatus main body 1 are formed at both ends of the passage groove 3, and the guide frames 5 and 6 have curved guide plates 7 and 8 facing each other. ing. These guide plates 7 and 8 guide the running of the tape, and smoothly form a loop with the tape and maintain the loop shape.
[0011]
In FIG. 1, the receiving plate 9 is cantilevered at the rear end side by the apparatus main body 1. The receiving plate 9 moves forward into the passage groove 3 to receive the object to be bound (see FIG. 1), and retreats from the passage groove 3. At a rear position along the lower surface of the object to be bound. The regulating member 10 contacts the upper surface of the front end 9b (free end) of the receiving plate 9 at the front position, and regulates the lifting of the front end.
[0012]
FIG. 2 is a schematic sectional view showing a simplified internal configuration of the apparatus main body 1. Referring to FIG. 2, the present tape bundling apparatus includes a receiving plate 9 for receiving a material A to be bound, a holding member 11 for holding and fixing an end of the tape T between the receiving plate 9 and the receiving plate 9, The tape T has a tape winding mechanism 12 for winding the tape T, a heating pressing unit 51, and an auxiliary pressing unit 52 as main parts. The tape winding mechanism 12 includes the table 2, the tape running mechanism 30, the guide frames 5 and 6, the fixed-side holding member 41 and the moving-side holding member 42, the moving holding tool 45, and the like.
[0013]
Referring to FIG. 2, the above-described tape traveling mechanism 30 that feeds and retracts the tape T is provided substantially at the center below the table 1. The tape running mechanism 30 has a delivery roller 31 composed of a rubber roller and binding rollers 33 and 34. The delivery roller 31 is driven and controlled to rotate forward (clockwise), and is used when delivering the tape T of the rewinding portion 35 from the guide plate 8 to the guide plate 7. The driving of the binding roller 32 is controlled so as to rotate in the reverse direction (counterclockwise) with respect to the delivery roller 31.
[0014]
Directly above the delivery roller 31 and the binding roller 32, driven rollers 33 and 34 made of metal are arranged, respectively. These driven rollers 33 and 34 are supported by the side plate 1a of the apparatus main body 1 so as to alternately contact the corresponding delivery roller 31 and binding roller 32. That is, when sending out the tape T of the rewinding portion 35, the sending roller 31 and the driven roller 33 come into contact with each other (at this time, the driven roller 34 is separated from the binding roller 32), and the tape T is tied to the binding object A. When the binding is performed, the binding roller 32 and the driven roller 34 come into contact with each other, and the delivery roller 31 and the driven roller 34 are separated from each other.
[0015]
The drive shaft (not shown) of the bundling roller 32 is arbitrarily adjusted so that the tape T is tightly attached at the time of bundling, and the abrasion of the bundling roller 32 due to slip between the tape T and the bundling roller 32 is prevented. A torque limiter (not shown) is provided for performing the operation.
Immediately downstream of the delivery roller 31, a fixed-side holding member 41 and a movable-side holding member 42 capable of holding the tape T immediately after being delivered from the delivery roller 31 and the driven roller 33 from above and below are attached. . The upper fixed side holding member 41 is attached to the side plate 1a so as to be vertically adjustable, and the lower moving side holding member 42 is moved up and down in conjunction with a moving mechanism (not shown). .
[0016]
In addition, a moving holding member constituted by holding members 43 and 44 capable of vertically and rotationally moving back and forth while holding the tape T on the side plate 1a between the holding members 41 and 42 and the receiving plate 9. 45 are attached. The movable holding member 45 can move up and down a distance from the height of the fixed-side holding member 41 to a height near the receiving plate 9, and advance and retreat from the window portion 1 b provided on the side plate 1 a to pass through the passage groove 3 side. You can move back and forth to The holding members 43 and 44 are constituted by a pair of steel leaf springs stacked on each other, and hold the tape T by advancing into the passage groove 3 by the above-described forward and backward movement.
[0017]
The leaf springs constituting the sandwiching members 43 and 44 have their distal ends expanded outward, so that the tape T can be easily sandwiched during the above-mentioned forward and backward movement. Further, when the moving holding member 45 moves the above-described distance between the upper and lower sides, the moving holding member 45 makes one rotation while changing the positions of the holding members 43 and 44 up and down. With this one rotation, a loop is formed at the end of the tape T.
[0018]
Below the receiving plate 9, a heating pressing portion 51 for thermally fusing the tapes T to each other is provided so as to be vertically movable. On the right side of the heating pressing portion 51 in the drawing, an auxiliary pressing portion 52 is arranged to be vertically movable. The auxiliary pressing portion 52 contacts the overlapping portion before contacting the overlapping portion of the tape T, and a predetermined time after the heat-sealing by the heating pressing portion 51 is completed and the heating pressing portion 51 is separated from the overlapping portion. Over time, the polymerized portion is held down until the heat-sealed portion cools down and the adhesion is stabilized.
[0019]
The receiving plate 9, the fixed-side and movable-side holding members 41 and 42, the movable-side holding member 45, the heating pressing unit 51, and the auxiliary pressing unit 52 are operated in conjunction with each other via a link mechanism and a cam mechanism. It is configured.
The tape T is formed by laminating a thermoplastic resin on at least one surface of a paper or other non-fusible main material, and the portion where the tape T is overlapped is heated and pressed by the above-mentioned heating and pressing portion. It can be heat bonded.
[0020]
The receiving plate 9 and the holding member 11 are arranged closer to the guide plate 8. 3 (a) and 3 (b), which are operation diagrams of the mechanism for moving the receiving plate 9 forward and backward, the holding member 11 is attached to the distal end portion of the operating plate 15 which is moved back and forth by the cam link mechanism 14. The receiving plate 9 is fixed to the upper end surface of the operation plate 15.
The holding member 11 is formed by a part of a U-shaped lever 16, and a bent portion of the U-shaped lever 16 is rotatably supported by an operation plate 15. The cam link mechanism 14 has at one end 19a a (1) cam 17 rotationally driven by a motor (not shown) and (2) a cam follower 18 composed of a roller that rolls on the peripheral surface of the cam 17. A swing lever 19 swinging about a fulcrum 19c closer to the center; (3) a connection lever 20 for connecting the other end 19b of the swing lever 19 to one end 16a of the above-mentioned U-shaped lever 16; (4) A tension coil spring 21 is provided between the middle of the connecting lever 20 and the apparatus main body 1. Reference numeral 22 denotes a stopper for positioning and stopping the rear end of the operation plate 15 when the receiving plate 15 is retracted.
[0021]
As shown in FIGS. 3A and 3B, when the cam 17 is rotated, the swing lever 19 is swung, and the operating plate 15 is moved forward and backward. The holding member 11 advances and retreats to the passage groove 3. Then, when the receiving plate 9 advances into the passage groove 3, the receiving plate 9 advances above the substantially horizontal tape T in the passage groove 3, and the holding member 11 advances below. At the end of the advance, as shown in FIG. 3A, the holding member 11 closes the space between the holding member 9 and the receiving plate 9 to hold the tape T (in FIG. Illustration is omitted.).
[0022]
On the other hand, when the cam 17 is further rotated, as shown in FIG. 3B, the operation plate 15 is retracted by the action of the tension coil spring 21 to come into contact with the stopper 22, and the swing lever 19 swings. Accordingly, the holding member 11 opens the space between the holding member 11 and the receiving plate 9.
FIG. 4 is a schematic perspective view of the receiving plate 9 and the regulating member 10. Referring to the figure, a rear end 9a, which is a fixed end of receiving plate 9, is fixed to operating plate 15 by screws. On the other hand, a front end 9b, which is a free end of the receiving plate 9, is a stepped portion formed as one paragraph. The tape T is overlapped along the lower surface of the receiving plate 9 to form an overlapped portion Ta, and the overlapping portion Ta is elastically pressed against the lower surface of the receiving plate 9 by the heating pressing portion 51 which has risen from below and is heated. Then, the polymerized portion Ta is thermally fused. Reference numeral 51a denotes a cartridge heater built in the heating press section 51. Reference numeral 53 denotes a cutter fixed to one surface of the heating and pressing unit 51, which cuts the tape T when the pressing by the heating and pressing unit 51 is strengthened.
[0023]
The regulating member 10 covers the front end 9b of the receiving plate 9 as shown in FIG. 6 (b), and regulates the lifting of the front end 9b, as shown in FIGS. 4 and 6 (c). Can be displaced between a tilt position and a tilt position where it tilts forward.
The regulating member 10 is formed by connecting the upper ends of a pair of L-shaped plates 23 and 24 with a connecting piece 25, and the lower ends of the L-shaped plates 23 and 24 are connected to a pair of support side plates 26 and 27, it is rotatably supported around the axis M. Each L-shaped plate 23, 24 is rotated between a portion near the lower end of each of the L-shaped plates 23, 24 at a predetermined distance from the axis M and a corresponding portion of the corresponding supporting side plates 26, 27. For example, compression coil springs 28 and 29 are interposed as elastic members that hold the regulating member 10 at the regulating position by being urged. Each of the compression coil springs 28 and 29 constitutes means for holding the regulating member at the regulating position. Here, the holding force when the compression coil springs 28 and 29 hold the regulating member 10 in the regulating position is such that the pinched finger does not hurt, and the regulating member 10 may unnecessarily tilt. It is preferable that the holding force is not so high.
[0024]
As shown in FIG. 5, the upper and lower ends of the compression coil spring 28 are supported by inserting support pins 46, respectively. Each support pin 46 is fixed to the shaft 47 through a through hole 47 a of a shaft 47 erected on the L-shaped plate 23 and the support side plate 26 in the radial direction. The same applies to the support of the compression coil spring 29.
[0025]
Next, with reference to FIGS. 6A to 6C, an operation of a characteristic portion of the present embodiment will be described. Normally, the front cover 4 and the regulating member 10 are held in an upright state as shown in FIG. 6A, but as shown in FIG. The front end 9b, which is the free end of the receiving plate 9, engages with the regulating member 10, and the lifting of the front end 9b is regulated by the regulating member 10.
[0026]
Therefore, in this state, even if the receiving plate 9 is pushed up by the heating / pressing portion 51, the receiving plate 9 is not warped. As a result, poor heat fusion due to the warping of the receiving plate 9 and, consequently, poor binding are prevented. it can.
In addition, as shown in FIG. 6C, an obstacle B, for example, a finger may be caught between the receiving plate 9 and the regulating member 10 that are going to advance forward. Even so, the regulating member 10 and the front cover 4 escape so as to incline toward the front side of the apparatus main body 1. Therefore, the apparatus is safe without being damaged.
[0027]
Further, since the regulating member 10 is rotationally urged to the regulating position by using an elastic member such as the compression coil springs 28 and 29, the obstacle B sandwiched between the receiving plate 9 and the regulating member 10 can be removed. If removed, the regulating member 10 automatically returns to the regulating position, which is convenient. The front cover 4 is manually returned to the closed state.
Further, since the compression coil springs 28 and 29 are used to hold the restriction member 10 at the restriction position, the structure for holding the compression members is simple, and the spring force of the compression coil springs 28 and 29 is adjusted. The desired holding force can be easily set.
[0028]
The present invention is not limited to the above embodiment. For example, in the above embodiment, the means for holding the regulating member 10 at the regulating position is the compression coil springs 28 and 29. A tension coil spring that biases the rotation may be used. In addition, a click structure may be provided on the opposing surfaces of the regulating member 10 and the supporting side plates 26 and 27 to hold the regulating member 10 at the regulating position. In addition, various changes can be made within the scope of the present invention.
[0029]
【The invention's effect】
According to the first aspect of the present invention, the lifting of the free end of the cantilevered receiving plate can be prevented by the regulating member, so that the receiving plate does not warp. Therefore, it is possible to prevent a tape binding failure due to the warpage of the receiving plate, and it is possible to eliminate maintenance such as replacement of the receiving plate. In addition, even if a finger is pinched between the advanced receiving plate and the regulating member, the regulating member tilts forward to escape and is safe.
[0030]
According to the second aspect of the present invention, the regulating member is rotationally biased by the elastic member and is held at the regulating position with a predetermined holding force, so that the structure is simple and the setting of the holding force is easy.
[Brief description of the drawings]
FIG. 1 is a partially cutaway perspective view of a tape binding device according to an embodiment of the present invention.
FIG. 2 is a schematic sectional view showing an internal configuration of the tape binding device.
3A and 3B are schematic side views of a mechanism for moving a receiving plate forward and backward, where FIG. 3A illustrates a state where the receiving plate has advanced, and FIG. 3B illustrates a state where the receiving plate has retracted.
FIG. 4 is a schematic perspective view of a receiving plate and a regulating member.
FIG. 5 is an exploded perspective view showing a supporting portion of a compression coil spring that holds a regulating member at a regulating position.
FIGS. 6A and 6B are schematic side views of a receiving plate, a regulating member, and a front cover, wherein FIG. 6A shows a state in which the receiving plate is retracted, and FIG. (C) shows a state in which an obstacle is sandwiched between the advanced receiving plate and the regulating member.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Device main body A Binding object 3 Passing groove 4 Front cover 9 Receiving plate 9b Front end (free end)
10 regulating member 51 heating press section

Claims (2)

A long receiving plate that is cantilevered by the apparatus main body and is advanced and retracted along the lower surface of the object to be bound at a front position for receiving the object to be bound and a rear position to retreat from the object to be bound,
A heat-pressing unit that heat-fuses the overlapped portion of the heat-fusible tape wound around the object to be bound while elastically pressing the tape against the receiving plate at the front position.
A restricting member supported by the device main body so as to be displaceable between a restricting position in which the free end of the receiving plate is in contact with the upper surface of the free end in the front position to restrict the lifting of the free end, and a tilting position inclining forward of the device main body. ,
Means for holding the regulating member at the regulating position with a predetermined retaining force. The tape bundling device according to claim 1, wherein the holding unit includes an elastic member that urges the regulating member to rotate.

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