JP2001192002A - Wrapper sealer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make a heat seal head always press in parallel on a seal table without requiring special adjusting work. SOLUTION: A heat seal head is mounted on a head axis extended in parallel with a rotary axis on a seal table. One end of a head supporter is connected to a head driving means and the other end of the same is connected to the head axis. An elastic member always energizes the axis so that the heat seal head is pressed on the seal table rotatively and elastically with the head axis as a center. The head supporter is mounted with a clearance specific in size in relation to the head axis, and the seal head is supported by the head supporter able to rotate in a direction corresponding to the rotary direction centering around the long axis of a wrapper tape loop wound around a set of bills held on the table.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a band-sealing device for heat-sealing a tape for banding a set of paper sheets such as banknotes, and more particularly, to a heat-sealing head which automatically controls a relative inclination of a seal table. The present invention relates to an improved band sealing device in which the heat sealing head always presses in parallel to the sealing table without requiring any special adjustment work.

[0002]

2. Description of the Related Art In a financial institution or the like, a predetermined number of bills (for example, 100
Sheets), and each banknote set thus collected is
The band is sealed by the cooperation of the heating seal head and the seal base in the band sealing device. In this type of band-sealing device, first, a banknote set composed of a predetermined number of banknotes is held on a seal base, and the band base is rotated while the seal base is rotated with respect to the long band-tape tape. Wrap in a single or double loop. Thereafter, the heat sealing head is pressed against the overlapped portion of the loop of the banding tape, and the overlapped portion is welded and sealed to produce a banknote bundle of a predetermined number of bills.

[0003]

However, in the conventional band sealing device used for the above-mentioned purpose, the operating surface of the sealing table and the heating seal are inevitable due to unavoidable errors in parts accuracy, assembly accuracy and the like. It is very difficult to configure the working surfaces of the heads to cooperate completely parallel to each other. In addition, to adjust the relative position of the parts after they have been mounted once, it is necessary to bend the lever arm that holds the heating seal head, which is very troublesome, and also requires adjustment to the appropriate relative position. Is also very difficult. In any case, with conventional band sealing devices, it is difficult or impossible to mount the heated seal head parallel to the working surface of the sealing table and press it completely parallel (and therefore evenly) to the overlapping portion of the band tape loop. It is possible. Therefore, in many cases, the heat sealing head was operated in an inclined state with respect to the overlapping portion of the banding tape loop. As a result of this inclination, inconveniences such as that only one side edge of the banding tape loop is welded and sealed, and undesirable wrinkles and the like are generated in the loop of the heat-sealed banding tape, have frequently occurred.

[0004] The present invention has been made in view of the above-mentioned point, and a band seal that enables a heating seal head to always press in parallel to a seal base without requiring any special adjustment work. It is intended to provide a sealing device.

[0005]

In order to achieve the above-mentioned object, a band sealing device according to the present invention includes a sealing table for holding a set of paper sheets, and a rotation of the sealing table in a predetermined direction.
A band-sealing tape wound in a loop around a sheet bundle held by the seal base, a heating seal head attached to a head shaft extending parallel to a rotation axis of the seal base, and the heating seal head A head driving means for driving the head in a direction approaching to the seal table and a retreating direction, and one end of the head driving means connected to the head driving means and the other end connected to the head shaft, A head support for transmitting a driving force of a driving unit to the heating seal head, and the heating seal head moved closer to the seal table by the head driving unit are rotatable and elastic about the head axis. An elastic member which constantly urges the head shaft so as to be pressed by the seal base, wherein the head support is provided by the head shaft. The heating seal head is mounted in a direction of rotation about a longitudinal axis of a loop of the banding tape wound around a sheet bundle on the seal table. Characterized by being supported by the head support so as to be rotatable in the direction.

In the band sealing device according to the present invention, since the head support is attached to the head shaft with a clearance of a specific size, the heating seal head supported by the head support includes:
The band is rotatable in a direction corresponding to a rotation direction about the longitudinal axis of the loop of the banding tape wound around the sheet set on the seal table. Further, the elastic member, which is, for example, a tension spring, is configured such that the heating seal head approached to the seal base by the head driving means is rotatably and elastically pressed by the seal base about the head axis. Thus, the head shaft is constantly urged. With such a configuration, the action angle of the heating seal head with respect to the seal table can be adjusted not only in the angular direction along the longitudinal axis of the loop of the banding tape, but also about the longitudinal axis of the loop of the banding tape. It can also be adjusted in the direction of rotation. Therefore, according to the present invention, the pressing state of the heating seal head against both side edges of the loop can be automatically adjusted without requiring any special manual adjustment work, and as a result, no special adjustment work is required. Without this, the heated sealing head can always press in parallel to the sealing table.

Preferably, the head support has a curved guide surface on an inner surface facing the heat seal head, and the heat seal head is rotatable while being guided by the curved guide surface. It is supported by the head support.

[0008]

Embodiments of the present invention will be described below in detail with reference to the accompanying drawings. FIG. 2 is a diagram showing an example of the overall configuration of the band seal device according to the embodiment of the present invention. The basic overall structure and operation of this band seal device are described in Japanese Patent Application No. Hei 7-2868 filed by the present applicant.
56 (Japanese Patent Application Laid-Open No. 9-99912). That is, when roughly described, a predetermined number of sheets (typically, 100 sheets)
Is held as shown by the two-dot chain line. The banding tape T is paid out from a reel (not shown). Seal stand 2
Is integrally fixed to a rotary gear 3 rotatable about, for example, a shaft 3 a in the direction of an arrow H, and rotates in the direction of the arrow H with the rotation of the rotary gear 3. By such rotation of the seal base 2, the banding tape T is wound around the banknote set B held by the seal base 2 in a predetermined number of turns (single or double loop). .

The heater / cutter mechanism 8 is provided near the outer periphery of the rotary gear 3 and has a tape heating sealing function and a tape cutting function. That is, the head operating lever 4 is provided at one end thereof with the shaft 4
The device is rotatably attached to the frame of the apparatus via a, and a heating seal head 12 is provided at the other end, that is, at the tip. The heating seal head 12 has a tip portion having a substantially quarter-circular cross section in the illustrated example, and is rotatable about a head shaft 19 extending in parallel with the shaft 3a of the seal base 2 at a substantially central portion in the longitudinal direction. Installed. Further, head flange portions 12a are provided on both sides in the width direction of the heating seal head 12 for the purpose to be described later.

More specifically, the head operating lever 4
Constitutes a head driving unit together with an arbitrary driving member DR such as a cam, and includes a direction (arrow I direction) approaching the seal base 2 and a direction retreating from the seal base 2 (arrow) about the shaft 4a. (J direction). In addition, a base end of the head operating lever 4 and a central portion of a substantially L-shaped connecting body 16 are connected via a connecting shaft 14.
The head shaft 19 is supported via a connecting body 16. Further, the heating seal head 1 is connected to the connecting shaft 14.
2 is mounted so as to be swingable. Further, the heater block bracket 18 is connected at one end thereof to a tip end of the head operating lever 4 as the head driving means,
The other end is connected to the head shaft 19, and functions as a head support for transmitting the driving force of the head operating lever 4 to the heating seal head 12.
In this manner, the head operating lever 4, the connecting body 16
And the heater block bracket 18 are connected to the connecting shaft 1.
4, they are swingably connected to each other.

The auxiliary lever 20 is rotatably attached at one end to, for example, a frame of the apparatus via a shaft 22. At the other end, that is, at the tip, the connecting lever 16 is connected to the connecting member 16. The shaft 14 is connected to a tip side portion. Further, a tape cutter 28 is fixed to a portion on the distal end side of the connecting body 16 in a predetermined relative positional relationship with respect to the heating seal head 12.

Further, the heater block bracket 1
Numeral 8 is attached to the head shaft 19, and is provided between the head shaft 19 and one end of the connecting body 16, and two tension springs 30 (1 in FIG. 2) located on both sides of the heater block bracket 18. 2 are always urged in the clockwise direction in FIG. By the urging force of this tension spring 30,
The heating seal head 12 fixed to the heater block bracket 18 is attached to the working surface of the seal base 2, that is, the loop overlapping portion of the band sealing tape T around which the banknote set B held on the seal base 2 is wound. It is designed to be elastically pressed. That is, the elastic urging force of the tension spring 30 and the heater block bracket 1
8 can swing with respect to the connecting shaft 14, so that the heat sealing head 12
Therefore, according to the relative inclination of the surface of the loop overlapped portion of the banding tape T wound around the banknote set B held on the seal stand 2 (that is, following), the drawing is centered on the connecting shaft 14. The angle can be automatically adjusted in the direction indicated by the arrow K of FIG. 2 (the width direction of the banknote set B, that is, the angle direction along the longitudinal axis of the loop of the banding tape T wound therearound). That is, according to the above-described known configuration, the action angle of the heating seal head 12 is automatically adjusted only in the rotation direction about the connection shaft 14 in accordance with the relative inclination angle of the action surface of the seal base 2. Can be done.

In other words, with only the known configuration as described above, the heating seal head 12 rotates about the longitudinal axis of the loop of the banding tape T wound around the banknote set B on the seal base 2. Direction (corresponding to the front and back sides of the paper of FIG. 2,
In the direction of arrow M in FIG. 3 described later), the operation angle cannot be automatically adjusted. That is, as the undesired inclination of the heating seal head 12 with respect to the working surface of the seal table 2, in addition to the inclination in the direction of the arrow K in FIG.
Although the inclination in the direction of arrow M in FIG. 3 corresponding to the front and back directions of the paper surface in FIG. 2 is conceivable, in the related art, the inclination of the direction in arrow K in FIG. The angle could not be automatically adjusted for the inclination in the direction of arrow M in FIG. Therefore, it is not possible to automatically adjust the pressing state of the heating seal head against both side edges of the loop overlap portion, and therefore, either one of the side edges of the loop overlap portion is not heat sealed,
Wrinkles and the like had occurred.

Therefore, in the band sealing device according to one embodiment of the present invention, the heating seal head 12 is rotated in the direction of rotation about the longitudinal axis of the loop of the band sealing tape T, The angle can also be automatically adjusted in the direction of the arrow M in FIG. 3 corresponding to the front and back directions of the sheet of FIG. 2, so that the inclination with respect to the seal base 2 in the two directions can be easily and automatically adjusted. The angle can be adjusted.

FIG. 1 is a partial cross-sectional rear view schematically showing a main part of a band sealing device according to an embodiment of the present invention. As shown, a connecting body 16 and a heater block bracket 18 (for simplicity,
Here, the head operating lever 4 and the auxiliary lever 20 are not shown). The head operating lever 4 and the auxiliary lever 20 are attached so as to be swingable in the vertical direction in FIG. Also, as described above, one end of each of the two tension springs 30 is attached to both ends of the head shaft 19, whereby the head shaft 19 is connected to the heater block bracket 18, and thus the heater The heating seal head 12 attached to the block bracket 18 is always elastically urged downward, and thus the heating seal head 12 is constantly elastically pressed against the seal base 2. .

Further, as shown in the cross-sectional portion of FIG.
While no clearance is provided between the head flange 19a and the head shaft 19, a heater block bracket 18 located between the head flanges 12a is provided between the head block 19 and the head shaft 19 for a purpose to be described later. It is attached to the head shaft 19 with a clearance CL of a specific size left.

FIG. 3 is a plan view showing the heating seal head 12 of the band sealing device according to the embodiment. As shown in this figure, the heater block bracket 18 is attached to the head shaft 19 with the clearance CL of the specific size being left between the heater block bracket 18 and the head shaft 19. The heating seal head 12 has a curved guide surface 1 formed on the inner surface of the heater block bracket 18 at the inner end thereof.
8a, and at the fulcrum P at the center in the width direction, the curved guide surface 18 of the heater block bracket 18 is provided.
a while being guided by the heater block bracket 18.
Is supported so as to be rotatable. In the illustrated example, the curved guide surface 18a of the heater block bracket 18 is provided.
Is formed in a hemispherical shape.

As described above, the elastic bias by the tension spring 30, the clearance CL between the heater block bracket 18 and the head shaft 19, and the heater block bracket 1 via the fulcrum P of the heating seal head 12 are provided.
8, the heat seal head 12 according to this embodiment rotates in the rotation direction about the longitudinal axis of the loop of the banding tape T wound around the banknote set B (that is, the direction of arrow M in FIG. 3). ), The relative action angle with respect to the seal base 2 can be automatically adjusted.

Next, an example of the operation of the band sealing device according to this embodiment will be described. First, when the band tape T is wound around the banknote set B by a predetermined number of turns by the rotation of the seal base 2, the head operating lever 4 is moved to the shaft 4a via the driving member DR such as the cam. Is rotated in the direction of arrow I with the center as the center. By the rotation of the head operating lever 4 in the direction of the arrow I, first, the tip of the heating seal head 12 transfers the overlapped portion of the banding tape T wound around the banknote set B in a loop to the seal base 2. The polymerized part is heat-sealed. While the heat sealing by the heat seal head 12 is in progress, the tape cutter 28 cuts a portion of the band sealing tape T immediately upstream (that is, the reel side) of the heated portion. By the heat sealing and cutting of the banding tape T as described above, the banknote set B becomes a completed banknote bundle.

When the tip of the heat sealing head 12 presses the overlapping portion of the banding tape T wound in a loop around the banknote set B against the seal table 2 as described above, the heat sealing head 12 When the head 12 is tilted relatively to the seal base 2, the head 12 is rotatable about the head shaft 19 and the head shaft 19 is attached by the tension spring 30 as described above. By being urged, the heat seal head 12 is moved in the width direction of the banknote set B, that is, in the angular direction along the longitudinal axis of the loop of the banding tape T wound therearound, as in the related art.
The angle can be automatically adjusted with respect to the seal base 2. Further, according to the present invention, the head 12 is rotatable about the head shaft 19, the head shaft 19 is biased by the spring 30, and the heater block bracket 18 and the head shaft 19 and the fact that the head 12 is rotatable with respect to the heater block bracket 18 via the fulcrum P, the heating seal head 12 The angle with respect to the seal base 2 can also be automatically adjusted in the rotation direction about the longitudinal axis of the loop (that is, the direction of the arrow M in FIG. 3). Therefore, without any special adjustment work, the heating seal head 12 is always automatically angle-adjusted according to the relative inclination with respect to the seal base 2, and thus the loop overlapping portion of the banding tape T is formed. Can always be pressed against the seal base 2 in parallel. As a result, the banding tape T can be reliably banded and sealed to the banknote set in an appropriate state without twisting or wrinkling. In addition, the band sealing device according to the present invention is not limited to the above-described banknotes, but is also applicable to a case of banding other paper sheets.

[0021]

As described above, in the band sealing device according to the present invention, the head support supporting the heat sealing head is attached with a clearance of a specific size to the head shaft, and An elastic member constantly biases the head shaft so that the heating seal head is rotatable about the head shaft and resiliently pressed against the seal table, whereby both side edges of the loop are formed. The pressing state of the heating seal head with respect to is automatically adjustable. With such a configuration, the present invention is excellent in that the heating seal head can always press in parallel to the seal table without any special adjustment work. It works.

[Brief description of the drawings]

FIG. 1 is a partial cross-sectional rear view schematically showing a main part of a band sealing device according to an embodiment of the invention.

FIG. 2 is a diagram showing an example of the overall configuration of the band sealing device according to the embodiment;

FIG. 3 is a plan view showing a characteristic portion of the band sealing device according to the embodiment and its operation.

[Explanation of symbols]

 T band sealing tape 2 seal base 4 head operating lever 12 heating seal head 18 heater block bracket 19 head axis 30 tension spring CL clearance P fulcrum

Claims (4)

[Claims] 1. A seal table for holding a set of paper sheets, a band sealing tape wound around the sheet set held by the seal table in a loop with rotation of the seal table in a predetermined direction, A heating seal head attached to a head shaft extending parallel to the rotation axis of the seal base, head driving means for driving the heat seal head in a direction approaching the seal base and in a retreating direction; A head support connected to the head driving means at one end and connected to the head shaft at the other end, and transmitting a driving force by the head driving means to the heating seal head; The head shaft is constantly moved so that the heating seal head approached to the seal base is rotatably and elastically pressed by the seal base about the head axis. An elastic member that is biased at the time, wherein the head support is attached with a clearance of a specific size with respect to the head axis, and the heating seal head is a paper sheet on the seal table. A band sealing device which is supported by the head support so as to be rotatable in a direction corresponding to a rotation direction about a longitudinal axis of a loop of the band tape wound around a set. 2. The head support has a curved guide surface on an inner surface facing the heat seal head, and the heat seal head is rotatable while being guided by the curved guide surface. The band sealing device according to claim 1, which is supported by a head support. 3. The elastic member according to claim 1, wherein the elastic member is a tension spring.
The band sealing device according to 1. 4. The band sealing device according to claim 1, wherein the head driving means is a cam and a head operating lever driven by the cam and connected to the head support.