JPH1053210A - Binding apparatus using tape - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent binding failure attributable to the warp of a receiving plate for an article to be bound and eliminate maintenance such as the replacement of the receiving plate in a binding apparatus using a tape. SOLUTION: A heated pressing part 51 for pressing a superposed portion Ta of a tape T against a lower face of a receiving plate to thermally weld the superposed portion Ta is supported on a support mechanism 60 in such a manner as to be freely turnable around an axis 63 so that the heated pressing part 51 can follow after the warp of the receiving plate. The support mechanism has compression coil springs 57 which are positioned on both sides of the axis 63 to urge the heated pressing part 51 upward, respectively. When used for a long period of time, the receiving plate 9 is so warped that a forward end 9b which is a free end of the receiving plate 9 supported in a cantilevered manner rises. However, the heated pressing part 51 follows after the warp of the receiving plate 9 plate 9 and can elastically press the supported portion against the receiving plate 9 in a favorable state at all times.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tape binding device for winding 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]

2. Description of the Related Art Conventionally, as a small binding device for binding bills or the like, a binding tape having at least one surface which is heat-adhesive is wound around a material to be bound, and an outer surface of a winding start portion and a winding end portion are wound. Polymerized with the inner surface of
There is provided a device for binding an object to be bound by pressing a heating press portion heated by a heater and thermally fusing the polymerized portion with a thermoplastic resin applied to the tape (for example, Japanese Patent Publication No. 62-7041).

In this binding device, the small loop formed at the end of the tape by rotating the tape while holding the end of the tape is expanded by feeding the tape from the unwinding side, so that the small loop is formed on the inner surface of the guide plate. After a predetermined loop is formed along the loop, an object to be tied is arranged in the loop, and the loop is narrowed to bind the object to be tied. Also,
In the above-described binding device, the receiving plate that receives 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 be thermally fused to each other. A heater, 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 overlapping portion to the lower surface of the receiving plate to maintain the overlapping state. Provided.

[0004]

However, since the above-mentioned cantilever-supported receiving plate is repeatedly lifted by the heating pressing portion and the auxiliary pressing portion, the receiving plate tends to be warped such that the front end portion is lifted by aging. Was in 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 perform maintenance such as replacing the receiving plate after a predetermined period of use elapses or shaving the upper surface of the heating pressing portion along the deformed receiving plate. there were. Therefore, an object of the present invention is to provide a tape binding device which can prevent a binding failure due to warpage of a receiving plate and does not require maintenance such as replacement of the receiving plate.

[0006]

According to another aspect of the present invention, there is provided a tape bundling apparatus comprising: a long receiving plate which receives a lower surface of an object to be bound and is cantilevered by a main body of the apparatus; A heat-pressing portion for performing heat-sealing while elastically pressing the overlapped portion of the heat-fusible tape wound around the object to be bound to the receiving plate, and the heating-pressing portion is configured to prevent warping of the receiving plate. It is characterized by being provided swingably so as to be able to follow.

In the above configuration, even if the cantilevered support plate is warped due to the change in diameter, the swingingly provided heating press section follows the warp of the support plate. The portions can uniformly press the polymerized portion of the tape to perform heat fusion. Maintenance such as replacement of the receiving plate is unnecessary. The tape bundling device according to claim 2 further includes a support mechanism that supports and heats the heating press unit and raises and lowers the heating press unit to the receiving plate side according to claim 1. The heating press unit is supported so as to be vertically movable and swingable around a predetermined axis, and has a pair of urging members for urging the heating press unit upward on both sides of the axis. It is characterized by the following.

Each of the urging members elastically urges the heating pressing portion about the axis, thereby enabling the heating pressing portion to elastically follow the warp of the receiving plate. Become.

[0009]

Embodiments of the present invention will be described below 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 tied made of a stack of paper or the like, and is divided into a rear table 2a and a front table 2b.
Are formed. The passage groove 3 allows a binding tape to pass therethrough during the winding operation. Also, the front table 2b
Are 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 an axis L at the lower end thereof. Thereby, the inside of the apparatus main body 1 can be easily inspected. For example, a click structure 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.

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 are formed at both ends of the passage groove 3 so as to protrude above the apparatus main body 1.
Numeral 6 has curved guide plates 7 and 8 facing each other. These guide plates 7 and 8 guide the running of the tape, and smoothly form a loop by the tape and maintain the loop shape.

In FIG. 1, the receiving plate 9 is cantilever-supported at its rear end by the apparatus main body 1. The receiving plate 9 advances to the passage groove 3 to receive the object to be bound (see FIG. 1). 3 to move back and forth along the lower surface of the object to be bound. FIG. 2 is a schematic sectional view showing a simplified internal configuration of the apparatus main body 1. With reference to FIG. 2, the present tape bundling device includes a receiving plate 9 for receiving an object A to be bound, a holding member 11 for holding and terminating an end of the tape T between the receiving plate 9 and the receiving plate 9. It has a tape winding mechanism 12 for winding the tape T, a heating pressing part 51 and an auxiliary pressing part 52 as main parts. The tape winding mechanism 12 includes a table 2, a tape running mechanism 30, guide frames 5 and 6, a fixed-side holding member 41, and a movable-side holding member 4.
2 and the movable holding tool 45 and the like.

Referring to FIG. 2, the above-described tape running mechanism 30 for feeding and unwinding the tape T is provided substantially at the center below the table 1. The tape running mechanism 30 has a delivery roller 31 made 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 binding roller 32 is
The driving control is performed so that the feeding roller 31 rotates in the reverse direction (counterclockwise).

Directly above the delivery roller 31 and the bundling roller 32, metal driven rollers 33 and 34 are disposed, respectively. The 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 the 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. , 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.

The drive shaft (not shown) of the bundling roller 32 is arbitrarily adjusted to fit the tape T at the time of bundling, and the bundling roller 32 is worn due to slippage between the tape T and the bundling roller 32. A torque limiter (not shown) is provided to prevent the occurrence of the above. Immediately downstream of the delivery roller 31, a fixed-side holding member 41 and a movable-side holding member 42 that can hold 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). .

The side plates 1a between the holding members 41, 42 and the receiving plate 9 are provided with holding members 43, 44 capable of holding up and down, rotating and moving back and forth while holding the tape T. A moving holding tool 45 is 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 can move the side plate 1a.
Can move forward and backward from the window portion 1b provided on the passage groove 3 side. 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.

The leaf springs constituting the holding members 43 and 44 have their respective tips extending outward, so that the tape T can be easily held 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.

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. Referring to FIG. 3 which is a perspective view of the receiving plate 9 and the heating / pressing portion 51, an overlapped portion Ta on which the tape T is superimposed is formed along the lower surface of the receipt plate 9, and this overlapped portion Ta is
The heating and pressing portion 51 which rises from below presses elastically against the lower surface of the receiving plate 9 and heats it, so that the overlapped 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.

Referring to FIG. 2 again, an auxiliary pressing portion 52 is disposed on the right side of the heating pressing portion 51 in the drawing so as to be vertically movable. The auxiliary pressing portion 52 comes into contact with the overlapping portion before contacting the overlapping portion of the tape T, and the heating pressing portion 5
After the heat-sealing by the method 1 is completed and the heating / pressing part 51 is separated from the superposed portion, the superposed portion is held down until the heat-sealed portion cools down after a predetermined time elapses and the bonding is stabilized.

The receiving plate 9, the fixed and movable holding members 41 and 42, the movable holding member 45, the heating pressing portion 51 and the auxiliary pressing portion 52 operate in conjunction with each other via a link mechanism or a cam mechanism. It is configured to be. The tape T is formed on at least one side of paper or other non-fused main material.
This tape T is formed by laminating a thermoplastic resin.
Is heat-pressed by the above-mentioned heat-pressing portion to enable heat bonding.

FIG. 4 is a perspective view showing the heating pressing section 51 and a supporting mechanism 60 for supporting the heating pressing section 51, and FIG. 5 is an exploded perspective view of the heating pressing section 51 and a main part of the supporting mechanism 60. Referring to these drawings, heating press portion 51 has a substantially rectangular parallelepiped shape, and upper surface 51b of heat press portion 51 has a long rectangular shape in front and rear. The above-described cartridge heater 51a is inserted into a heater accommodating hole formed in the front-rear direction so as to open in the front surface 51c of the heating pressing portion 51. Also, the cutter 53 is provided on one side surface 51d of the heat pressing portion 51.
Are fixed using a mounting plate 54 and screws 55. A long hole 51 e penetrating through the heating pressing portion 51 in the left-right direction is formed at the center of the heating pressing portion 51 in the front-rear direction. The long hole 51e is elongated in the up-down direction. Further, a pair of guide rods 56 is fixed to the lower surface of the heat pressing portion 51, and each of the guide rods 56 has an upper large diameter portion 56a.
And a lower small diameter portion 56b. A compression coil spring 57 is fitted in the small diameter portion 56b. Each compression coil spring 57 urges the heating pressing portion 51 upward through the large diameter portion 56a of the guide rod 56.

The support mechanism 60 includes an elevating base 61 and an inverted T-shaped support 62 fixed to the upper surface of the elevating base 61.
And the pair of compression coil springs 57 and the pair of guide rods 56. The heating pressing portion 51 is rotatably supported at the upper end of an inverted T-shaped support 62 by a pivot 63 extending in the left-right direction. A connecting member 64 is fixed to a rear portion of the lower end of the elevating base 61.
, An end 65a of the swing lever 65 is rotatably connected. Further, the swing lever 65 is provided with a support shaft 65 in the middle thereof.
b, and the swing lever 6
A cam follower 66 composed of a roller pivotally supported by the other end 65c of the fifth roller 5 rolls on a peripheral surface of a cam 67 driven by a motor (not shown). When the swing lever 65 swings with the rotation of the cam 67, the support mechanism 60 moves up and down integrally, and
1 is raised and lowered. At the time of this elevating, the elevating base 61
Are guided by a guide member (not shown) so as to be able to move up and down.

In FIG. 4, the inverted T-shaped support 62 is
Has a base portion 62a and a columnar portion 62b, and the columnar portion 62b
Has a U-shaped stay, and the pivot 63 is press-fitted and fixed in a fitting hole 62c provided in the stay. The base 62a has a pair of through holes 62d vertically penetrating therethrough. These through holes 62d are
The small-diameter portions 56b of the guide rods 56 fixed to the lower surface of the heating press portion 51 are inserted with play provided.

In such a support mechanism 60, the heating pressing portion 51 can move up and down and the pivot 6
3, the heating pressing portion 51 is elastically urged upward by the two compression coil springs 57. Further, the swinging of the heating pressing portion 51 in the X direction (see FIG. 4) is elastically suppressed by one compression coil spring 57, and the swinging in the Y direction (see FIG. 4) is suppressed by the other compression coil. It is elastically suppressed by the spring 57. Normally, the elastic repulsive forces of the two compression coil springs 57 are balanced with each other so that the upper surface of the heating pressing portion 51 is horizontal. In other words, these compression coil springs 57 urge the heating pressing portion 51 upward, and also urge the upper surface of the heating pressing portion 51 to rotate so as to be horizontal.

FIGS. 6A and 6B show the heat pressing portion 51.
Is a partially broken side view showing a state in which the overlapping portion Ta of the tape T is pressed against the lower surface of the receiving plate 9. These figures show a state where the cutter 53 is removed. As shown in FIG. 6A, when the receiving plate 9 is horizontal without warpage, the heat pressing portion 51 also contacts the lower surface of the receiving plate 9 in a horizontal state.

On the other hand, as shown in FIG. 6B, when the receiving plate 9 is warped so that the front end 9b, which is the free end of the receiving plate 9, is lifted due to long-term use, the receiving plate 9 can swing freely. In addition, the heating pressing portion 51 urged to rotate in both directions (X direction and Y direction) by the pair of compression coil springs 57 elastically follows the warpage of the receiving plate 9.

Therefore, the heating and pressing portion 51 follows the warpage of the receiving plate 9 and uniformly presses the overlapped portion Ta of the tape T to perform heat fusion. As a result, it is possible to prevent a tape binding failure due to the warpage of the receiving plate 9 and to eliminate maintenance such as replacement of the receiving plate 9. In addition, with the pair of compression coil springs 57 described above, the function of urging the heating pressing portion 51 upward and the function of rotating and pressing the heating pressing portion 51 in both directions can be used, thereby simplifying the structure. it can.

The present invention is not limited to the above embodiment, and various modifications can be made within the scope of the present invention.

[0028]

According to the first aspect of the present invention, even if the cantilevered support plate is warped due to a change in diameter, the heating pressing portion can follow the warp of the support plate, so that the overlapping portion of the tape can be uniformly formed. And heat-sealed. As a result, it is possible to prevent the tape from being poorly bound due to the warpage of the receiving plate, and it becomes unnecessary to perform maintenance such as replacement of the receiving plate.

According to the second aspect of the present invention, since the heating pressing portion can be elastically rotated and biased by each biasing member,
The heating pressing portion can elastically follow the warpage of the receiving plate. Moreover, this can be achieved with a simple structure.

[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.

FIG. 3 is a perspective view of a receiving plate and a heating press unit.

FIG. 4 is a perspective view showing a heating pressing unit and a supporting mechanism thereof.

FIG. 5 is an exploded perspective view of a main part of a heating press unit and a support mechanism.

FIG. 6 is a partially cutaway side view of the receiving plate and the heating pressing portion, showing a state in which the heating pressing portion presses the overlapping portion of the tape to the lower surface of the receiving plate, and (a) shows that the receiving plate is warped. (B) is a case where the receiving plate is warped.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS A to-be-tied thing 1 Device main body 9 Receiving plate T Tape Ta Overlapping part 51 Heating press part 51a Long hole 56 Guide rod 57 Compression coil spring (biasing member) 60 Support mechanism 63 Pivot (axis)

Claims (2)

[Claims] An elongated receiving plate which receives a lower surface of an object to be bound and is cantilevered by an apparatus body and a superposed portion of a heat-fusible tape wound around the object to be bound. And a heat-pressing portion that is heat-fused while being elastically pressed, wherein the heat-pressing portion is swingably provided so as to follow the warpage of the receiving plate. And a support mechanism for supporting the heating press section and moving the heating press section up and down to the receiving plate side by being driven. The support mechanism is capable of vertically moving the heating press section and having a predetermined axis. 2. A tape bundling device according to claim 1, further comprising: a pair of urging members for urging the heating pressing portion upward on both sides of the axis. apparatus.