JPH1053209A - Binding apparatus using tape - Google Patents

Abstract

PROBLEM TO BE SOLVED: To achieve the miniaturization of a binding apparatus, expedite an operational speed and, moreover, make the setting of the operational timing of each member easier in a binding apparatus using a tape for binding an article to be bound with a thermally weldable tape. SOLUTION: A moving lever 65 is vertically moved by a single cam 67 to elevate an elevation body 90. The elevation body 90 supports a movement side holding member 42, a heated pressing part 51 and an auxiliary pressing part 52, and elevates them at a predetermined timing, respectively. The movement side holding member 42, the heated pressing part 51 and the auxiliary pressing part 52 are elastically supported by compression coil springs 79d, 57, 86, respectively. According to upward movement of the elevation body 90, the movement side holding member 42, the heated pressing part 51 and the auxiliary pressing part 52 abut with corresponding members in order named, respectively, and, thereafter, according to downward movement of the elevation body 90, they move downward in reverse order.

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 heating and pressing portion, a first clamping member for clamping the tape between the loop and the fixed member on the side opposite to the winding after the loop is squeezed, and a second for holding the superposed state by pressing the superposed portion against the lower surface of the receiving plate. And two clamp members.

In the above-mentioned binding device, one or two motors are usually used, and each member related to the tape binding, for example, the above-mentioned first clamp member, second clamp member and heating pressing portion is provided with: They have been driven to follow individual cams arranged on the same main shaft.

[0005]

However, as described above, since a plurality of cams are arranged in the axial direction of the main shaft,
There is a problem that the main shaft becomes longer in the axial direction and the device becomes larger. Further, a mechanism (a cam follower, a swing lever for supporting the cam follower, and the like) that follows each cam is required, and the structure is complicated. Therefore, the operation speed tends to be slow.

Further, the operation timing of each member is adjusted by adjusting the phase between the cams. However, since each of the cams has a different shape, the output change with respect to the phase change of the cam is not necessarily linear. Met. SUMMARY OF THE INVENTION It is an object of the present invention to provide a tape bundling device that can be reduced in size, can increase the operation speed, and can easily adjust the operation timing of each member.

[0007]

According to a first aspect of the present invention, there is provided a tape bundling apparatus, comprising: a small loop formed at an end of a heat-fusible tape; A plurality of members related to tape bundling are formed in a tape bundling apparatus that forms a predetermined loop by being inflated by paying out the tape, narrows the band, and binds the object to be bound.
An interlocking mechanism that operates at a different timing by being driven by a single cam is provided.

In the above configuration, since a plurality of members are operated by a single cam, the number of cams can be reduced. As a result, the main shaft can be shortened in the axial direction, and the apparatus can be downsized. In addition, since it is only necessary to follow a single cam, the mechanism for following the cam can be greatly simplified, so that the operation speed of the apparatus can be increased. Further, in the related art, in order to adjust the operation timing of a plurality of members, it is necessary to adjust the phase of the cams that drive the respective members, but this phase adjustment can be eliminated.

Further, the tape binding device according to claim 2 is
2. The receiving plate according to claim 1, which receives a lower surface of the object to be bound.
A moving holding member that clamps the tape between the loop and the fixed portion on the side opposite to the winding side after the loop is narrowed, and a superimposed portion of the heat-fusible tape wound around the material to be tied under the receiving plate. Further, a heating press unit that heats and overlaps the overlapped portions by heat while pressing against each other, and an auxiliary pushing unit that holds the overlapped state by pressing the overlapped portions against the lower surface of the receiving plate, further comprising a plurality of members. , A moving holding member, a heating pressing unit, and an auxiliary pressing unit.

[0010] In the above configuration, the moving holding member, the heating pressing unit, and the auxiliary pressing unit all perform the same lifting / lowering operation.
With these members, it is possible to easily follow a single cam. According to a third aspect of the present invention, in the tape bundling device according to the first or second aspect, the interlocking mechanism is supported by the apparatus main body so as to be able to move up and down, and the movable holding member, the heating pressing unit, and the auxiliary pressing unit each include an elastic body. And a swinging body supported swingably by the apparatus main body, and swingably driven by the cam to swing the lifting body up and down. is there.

In the above configuration, the operation timing of each member can be set as desired by appropriately setting the distance between the lifting member and each member. In addition, since linear adjustment of adjusting the distance between the elevating body and each member is sufficient, the operation timing can be easily adjusted.

[0012]

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 cantilevered at the rear end by the apparatus main body 1. The receiving plate 9 advances to the passage groove 3 for receiving the material 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).

Immediately above the delivery roller 31 and the binding 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 binding roller 32 is arbitrarily adjusted to fit the tape T at the time of binding, and the binding roller 32 is worn due to slippage between the tape T and the binding 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 plate 1a between the holding members 41, 42 and the receiving plate 9 is constituted by holding members 43, 44 which can vertically move, rotate and move 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 period of time and the bonding is stabilized.

The tape T is formed by laminating a thermoplastic resin on at least one surface of paper or other non-fusible main material. Pressing allows thermal bonding. The receiving plate 9, the fixed-side and moving-side holding members 41, 42, the moving-side holding tool 45, and the heating press section 5
1 and the auxiliary pressing portion 52 are configured to operate in conjunction with each other via a link mechanism or a cam mechanism,
In particular, the present embodiment is characterized in that the moving-side holding member 42, the heating pressing portion 51, and the auxiliary pressing portion 52, each of which performs the raising / lowering operation at a predetermined timing, are driven up and down by one cam.

The mechanism for raising and lowering these members 42, 51 and 52 will be described with reference to FIGS.
First, referring to FIG. 4, moving-side holding member 42, heating pressing portion 51, and auxiliary pressing portion 52 are respectively connected to lifting base 7.
It is elastically supported by 1, 62 and 81, and is moved up and down in conjunction with the cam 67 by the interlocking mechanism 100. That is, the above-mentioned lifting bases 71, 62
And 81 are integrally connected to each other by screws 72 and 88 so as to be able to move up and down to form an elevating body 90. The elevating body 90 is swung by an oscillating lever 65 as an oscillating body following the cam 67. The swing lever 65 swings up and down via the connecting member 64.

The heating pressing portion 51 includes a lifting base 61 and an inverted T-shaped support 6 fixed to the upper surface of the lifting base 61.
2, the pair of compression coil springs 57, and the pair of guide rods 56, are supported by a support mechanism 60, and are moved up and down with the elevation of the elevation base 61. The auxiliary pressing portion 52 is made of a substantially rectangular plate member.
A slide plate 82 having excellent slidability is integrally attached by screws 84 so as to face the lifting base 61 side. The elevating base 61 on the side of the heating pressing part 51 and the connected body of the auxiliary pressing part 52 and the slide plate 82 are supported so as to be able to ascend and descend so as to pass through a guide cylinder defined by the U-shaped plate 111 and the flat plate 112. (In other words, the lifting base 61
In addition, the connection body is restricted from moving by a guide tube except for lifting and lowering. ). Although not shown, the U-shaped plate 11
1 is fixed to the apparatus main body 1. 113 is a U-shaped plate 1
11 and a screw connecting the flat plate 112 to each other. The slide plate 82 includes the lifting base 61 and the auxiliary pressing portion 5.
It works to make the ascent and descent relative to 2 smooth. The reason why the upper portion of the auxiliary pressing portion 52 is formed to protrude forward is to correspond to the width of the tape T. By using a material having this protrusion amount appropriately set, the tape T having a different width can be easily used. It can be adapted to.

A guide rod 85 is fixed from the lower end surface of the auxiliary pressing portion 52, and a compression coil spring 86 as an elastic body is fitted to the guide rod 85. The guide rod 85 is a through-hole 8 penetrating vertically through the elevating base 81.
7 is loosely fitted. The compression coil spring 86 is interposed between the auxiliary pressing portion 52 and the elevating base 81, and
2 is elastically supported. When the upper end of the auxiliary pressing portion 52 comes into contact with the overlapped portion Ta of the tape T received by the receiving plate 9 and is stopped from rising, the compression coil spring 86 bends, and the lifting base 81 is further raised. Is allowed.

Next, referring to FIG. 4 and FIG. 5 which is an exploded perspective view of the moving side holding member 42 and a mechanism for supporting the moving side holding member 42, the moving side holding member 42 includes a main body 42a made of a substantially rectangular plate member, A resin member 42b fitted in a groove formed on the upper surface of the main body 42a. Resin member 42
The reason why a is used is to increase the holding force between the holding member 41 and the fixed side holding member 41. A curved guide plate 73 for guiding the running of the tape T is fixed to the upper surface of the main body 42a on the side of the heating pressing portion 51 by screws 74. The reason why the upper portion of the movable side holding member 42 projects forward is to correspond to the tape width, and various types having different projection amounts are set.

The moving-side holding member 42 includes a U-shaped plate 75 and an L-shaped plate 75.
It is supported so as to be able to move up and down so as to pass through a guide cylinder formed by connecting a letter-shaped plate 76 with a screw 77. L
The letter plate 76 is fixed to a predetermined portion (not shown) of the apparatus main body 1 by screws 78. On the other hand, the moving-side holding member 42
A support rod 79 is connected to the lower end of the main body 42a. The support rod 79 has a threaded portion 79a at its upper end attached to the main body 4.
It is screwed and fixed in a screw hole 42c on the lower end surface of 2a. A stopper member 79b which is received by the bottom plate of the apparatus main body 1 is fixed to a lower end portion of the support rod 79, and a spring receiving member 79 is provided at an intermediate portion of the support rod 79.
c is fixed. A compression coil spring 79d as an elastic body is fitted to the support rod 79 between the spring receiving member 79c and the elevating base 71. The compression coil spring 79d lifts the movable holding member 42 via the spring receiving member 79c and the support rod 79 when the lifting base 71 is lifted by a predetermined amount or more from the lowest position.

Next, with reference to FIG. 4, FIG. 6 which is a perspective view of the heating pressing section 51 and a supporting mechanism for supporting the same, and FIG. 7 which is an exploded perspective view of the heating pressing section 51 and a main part of the supporting mechanism. The heating pressing portion 51 has a substantially rectangular parallelepiped shape, and the upper surface 51b of the heating pressing 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. The cutter 53 is fixed to one side surface 51 d of the heating pressing portion 51 using a mounting plate 54 and a screw 55. Heat pressing part 51
A long hole 51e penetrating the heating and pressing portion 51 in the left-right direction is formed at the center in the front-rear direction. This long hole 51e
Are elongated in the vertical direction. Further, the heating press section 5
A pair of guide rods 56 are fixed to the lower surface of the first guide rod 1. Each of the guide rods 56 has an upper large diameter portion 56a and a lower small diameter portion 5a.
6b, and 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 a lifting base 61 and an inverted T-shaped support 62 fixed on the upper surface of the lifting 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). The swinging lever 65 swings with the rotation of the cam 67, and thereby the lifting body 9 including the lifting bases 61, 71, 81.
0 moves up and down, and moves up and down the moving-side holding member 42, the heating pressing unit 51, and the auxiliary pressing unit 52.

In FIG. 6, the above-mentioned inverted T-shaped support 62
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 supporting 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. 6) is elastically suppressed by one compression coil spring 57, and the swinging in the Y direction (see FIG. 6) 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. 7A and 7B 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. 7A, when the receiving plate 9 is horizontal without warpage, the heating pressing portion 51 is also in contact with the lower surface of the receiving plate 9 in a horizontal state.

On the other hand, as shown in FIG. 7 (b), 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 up 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.

Next, FIGS. 8A to 8C show the lifting and lowering members 9.
FIG. 10 is a partially cutaway front view showing how the moving-side holding member 42, the heating pressing unit 51, and the auxiliary pressing unit 52 are moved up and down as 0 goes up and down. FIGS. 9 to 13A and 13B are schematic diagrams sequentially showing the tape binding process of the present binding device. The working steps will be described sequentially with reference to FIGS.

First, the tape T is sandwiched between the sending roller 31 and the driven roller 33 from the rewinding section 35 via the binding roller 32 and between the pair of holding members 41 and 42 separated from each other. , The front end is held by the moving holding tool 45 moving to the lower position [FIG.
reference〕. Then, from this state, the moving holding member 45 moves to a position near the binding object A (hereinafter, simply referred to as an upper position) while making substantially one rotation (see FIG. 10A).

Then, the feed roller 31 rotates forward, and a predetermined amount of the tape T is fed from the guide plate 8 along the guide plate 7 to form a loop (see FIG. 10B). Here, the binding object A is placed on the table 1. Next, the holding member 11 and the receiving plate 9 advance toward the passage groove 3 from inside the table 2 in a state where the tape T has entered between them, and as shown in FIG. Reaches near the bottom surface of the binding object A, the end of the tape T is clamped between the receiving plate 9 and the clamping member 11.

Thereafter, the movable holding member 45 retreats from the passage groove 3 through the window portion 1b of the side plate 1a, and moves to the lower position while making substantially one rotation to be in a standby state for the next operation. During the above operation, the driven roller 33 separates from the delivery roller 31, and instead, another driven roller 34 descends and contacts the binding roller 32, and the binding roller 32 rotates (the rotation direction of the delivery roller 31 is (The direction of rotation is opposite to the direction of rotation), and a tightening operation is performed by a necessary amount according to the material A to be bound (see FIG. 11A).

In the state of FIGS. 9 to 11A described above,
Although the elevating body 90 continues to ascend, the upper end of the compression coil spring 79d shown in FIG. 8A is not yet in contact with the spring receiving plate 79c of the support rod 79. When the above-described tightening operation is completed, as shown in FIG. 8B, the compression coil spring 79d pushes up the moving-side holding member 42 via the spring receiving member 79c and the support rod 79, and the pushed-up moving-side holding is carried out. While holding the tape T between the member 42 and the fixed-side holding member 41, the moving holding tool 45 advances forward to hold the tape T (see FIG. 11B). Further, as the elevating body 90 rises, the compression coil spring 86 pushes up the auxiliary pressing portion 52, and the pushed up auxiliary pressing portion 52 presses the overlapped portion Ta of the tape T toward the receiving plate 9 [FIG. b) and FIG. 12 (a)].

Next, as the elevating body 90 is further raised, the heating pressing portion 51 is pushed up, and the overlapping portion Ta is pressed against the receiving plate 9, and the overlapping portion Ta is heated and bonded by heating with a heater. The cutter 53 cuts the overlapped portion by the pressing of the heating pressing portion 51 (see FIG. 8C).
And FIG. 12 (b)]. Next, the elevating body 90 starts to descend, and the heating / pressing portion 51 descends and separates from the bonding portion of the binding tape T (see FIGS. 8B and 13A). When the pressing portion 52 is separated and the movable holding member 42 is separated from the fixed holding member 41 (see FIGS. 8A and 13B), the binding operation is completed, and the preparation state for the next binding operation is completed. Becomes

In this embodiment, a plurality of members 42, 51,
Since the 52 is operated by the single cam 67, the number of cams can be reduced. As a result, the main shaft 68 can be shortened in the axial direction, and the device can be downsized. In addition, since it is only necessary to follow the single cam 67, the mechanism for following the single cam 67 can be greatly simplified, so that the operation speed of the apparatus can be increased. Further, in the related art, in order to adjust the operation timing of a plurality of members, it is necessary to adjust the phase of the cams that drive the respective members, but this phase adjustment can be eliminated.

In particular, the moving holding member 42 and the heat pressing portion 51
Since both the auxiliary pressing portion 52 and the auxiliary pressing portion 52 move up and down, these members can be easily driven by a single cam. The elevating body 90 and the members 42, 51, 5
2 and the spring lengths of the compression coil springs 79, 57, 86 are appropriately set so that the members 42, 51,
It is possible to set the operation timing of 52 as desired. In addition, since linear adjustment of adjusting the distance between the elevating body 90 and each of the members 42, 51, and 52 is sufficient, the operation timing can be easily adjusted.

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

[0044]

According to the first aspect of the present invention, since a plurality of members are operated by a single cam, the number of cams can be reduced. As a result, the main shaft can be shortened in the axial direction, and the apparatus can be downsized. . Also, you only need to follow a single cam,
As a result, the following mechanism can be greatly simplified, so that the operation speed of the apparatus can be increased. Further, in the related art, in order to adjust the operation timing of a plurality of members, it is necessary to adjust the phase of the cams that drive the respective members, but this phase adjustment can be eliminated.

According to the second aspect of the present invention, the movable holding member,
Since both the heating pressing unit and the auxiliary pressing unit move up and down, these members can be easily driven by a single cam. According to the third aspect of the present invention, the linear adjustment of the distance between the elevating body and each member is sufficient, so that the operation timing of each member can be easily adjusted.

[Brief description of the drawings]

FIG. 1 is a partially broken schematic 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 an exploded perspective view showing a movable holding member, a heating pressing section, an auxiliary pressing section, and a mechanism for moving these up and down in conjunction with a cam.

FIG. 5 is an exploded perspective view of a moving-side holding member and a mechanism for supporting the holding member.

FIG. 6 is an exploded perspective view of a heating pressing unit and a mechanism for supporting the heating pressing unit.

FIGS. 7A and 7B are partially cutaway side views of the receiving plate and the heating pressing portion, showing a state where the heating pressing portion presses the overlapping portion of the tape to the lower surface of the receiving plate; FIG. (B) is a case where the receiving plate is warped.

FIGS. 8A to 8C are partially cutaway front views sequentially showing a state in which a movable holding member, a heating pressing unit, and an auxiliary pressing unit are raised and lowered as the lifting body is raised and lowered.

FIG. 9 is a process diagram of a binding operation.

10 (a) and (b) are step diagrams of the binding operation following FIG.

FIGS. 11 (a) and (b) are step diagrams of the binding operation following FIG. 10 (b).

FIGS. 12A and 12B are process diagrams of a binding operation following FIG. 11B.

13 (a) and 13 (b) are process diagrams of the binding operation following FIG. 12 (b).

[Explanation of symbols]

 T Tape Ta Overlapping part A Object to be bound 9 Receiving plate 35 Reversing part 41 Fixed side holding member 42 Moving side holding member 51 Heat pressing part 52 Auxiliary pressing part 57, 79d, 86 Compression coil spring (elastic body) 67 Cam 68 Main shaft 61, 71, 81 Elevating base 65 Swing lever (oscillating body) 90 Elevating body 100 Interlocking mechanism

Claims (3)

[Claims] 1. A small loop formed at an end of a heat-fusible tape is expanded by feeding the tape from the opposite side of the tape to form a predetermined loop. What is claimed is: 1. A tape binding device, comprising: an interlocking mechanism that operates a plurality of members related to tape binding at different timings by following a single cam. 2. A receiving plate for receiving a lower surface of an object to be tied, a moving holding member for clamping a tape between a loop and a fixing member on a side opposite to the winding side after the loop is narrowed, and a periphery of the object to be tied. A heat-pressed portion that presses the overlapped portion of the rolled heat-fusible tape against the lower surface of the receiving plate and heats and heat-fuses the overlapped portion to each other, and presses the above-mentioned overlapped portion against the lower surface of the receiving plate to form a stacked state The tape bundling device according to claim 1, further comprising: an auxiliary pressing portion that holds a plurality of members, wherein the plurality of members include at least two of a moving holding member, a heating pressing portion, and an auxiliary pressing portion. 3. The apparatus according to claim 1, wherein the interlocking mechanism is supported by the apparatus main body so as to be able to move up and down, and the movable holding member, the heating pressing section and the auxiliary pressing section are each supported by an elastic body so as to be able to move up and down. 3. The tape binding device according to claim 1, further comprising: a swinging member that is swingably supported and swings in accordance with the cam to raise and lower the lifting member.