JP2695006B2 - Binding device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial field of application> The present invention wraps a heat-bonding tape, one surface of which is coated with a heat-melting adhesive, around a member to be bound, and folds back one end of the heat-bonding tape. And a binding device for thermocompression bonding the other end of the heat-bonding tape.

<Prior Art> Conventionally, as a binding device of this type, for example, JP-A-58-1713 is used.
As disclosed in Japanese Patent Publication No. 17, a pair of holding members first lowers the mounting table to transfer the bound objects to a plurality of transfer tables, and waits the leading end of the fed heat-bonding tape in an open state obliquely above it. After being inserted and held between, by interlocking with the horizontal movement of the transfer table, the holding member revolves around the transfer table in the counterclockwise direction while rotating the holding member itself in the counterclockwise direction, A fold-back portion with the coating surface of the heat-melting adhesive inside is formed at the tip of the heat-bonding tape, and the heat-bonding tape is wound around the body to be bound through the space formed between the transfer tables. After that, the base end of the heat-bonding tape is cut by a cutter, and then the base end is heat-welded while overlapping the folded-back part with a heater, and then the holding member is held by the binding body while horizontally moving the transfer table in the opposite direction. It is orthogonal to the moving direction of the transfer table. Withdrawn direction, only bundling body at the position where the transfer table is the most retracted is dropped into the chute of the downwardly brought back to the initial position by advancing the transfer table,
As a result, when heat-bonding the heat-bonding tapes after bundling, there are some which do not require the heater pedestal inserted between the heat-bonding tapes in the heating portion and the body to be bound.

<Problems to be Solved by the Invention> However, in such a conventional binding device, the transport direction of the bound objects is lowered, then advanced horizontally, temporarily stopped and then retracted, and then bound again downward. Since the carrying direction is changed many times such as dropping the device, the structure of the device is correspondingly complicated and the entire device is not only increased in size, but also high speed binding is not expected.

Further, the tip of the heat-sealing tape cut by a cutter is fed out in a free state, and the hardness of the material is used to push it out to insert it between the holding members that stand diagonally upward and hold it. When the material of the adhesive tape is paper in particular, it is difficult to make the quality uniform, and there are subtle variations in the hardness, and it is not always possible to reliably feed it out in the prescribed direction under the same conditions. Is likely to occur.

Further, since the feeding position of the heat-bonding tape is fixed with respect to the binding object that is immovably transferred on the transfer table, when the size of the binding object changes and it is necessary to change the binding position. , The transfer table is changed to change the space position where the heat-bonding tape passes and the feeding position of the heat-bonding tape is moved in response to this, or the transfer table is replaced to change the transfer position of the bound object from the mounting table. There is also a problem that it is difficult to cope with the size exchange because parts must be exchanged in either case.

In view of the above conventional circumstances, the present invention has a first object to make the conveying direction of the bundled object one direction and to securely hold the tip of the heat-bonding tape without freeing the bundle. A second object is to make the feeding position of the heat-sealing tape movable with respect to.

<Means for Solving the Problem> The technical means provided by the present invention for solving the above problem is to provide a transport path for placing and transporting a bound object horizontally, and in the middle of the transport path, A pair of upper and lower compression means for compressing the bundled body in the vertical direction and a pin rotation means for rotating the pin orthogonal to the transport path direction are arranged so as to surround the compression means, and the pin rotation is performed. A folding means for forming a feeding path of the heat-bonding tape in a direction orthogonal to the conveying path toward the track, and winding the end of the heat-bonding tape fed near the feeding path around the outer circumference of the pin to fold it and perform thermocompression bonding. In the vicinity of the pin rotation stop position, a heater for heat-sealing tape heat-welding, which can be moved in and out of contact with the pin rotation trajectory, and a cutter for cutting heat-sealing tape are arranged close to each other, By moving the pin in the direction of the transport path, The present invention is characterized in that pin removing means for pulling out from the folded portion formed by the folding means is provided.

Then, along the transport path, the bundled body is carried in from the upstream side into the compression means and the pin rotation means, and the transporting means for carrying out the bundled body bound from these means to the downstream side is provided. Is preferred.

Further, it is preferable that the pin rotating means is composed of an annular rotating wheel, and the pin is movably arranged on the rotating wheel in the conveying path direction. It is preferably composed of a movable lift base and a sandwiching surface which is partially formed on the inner peripheral surface of the rotary wheel and which is parallel to the upper surface of the lift base. It is preferable to form a space into which the heat-sealing tape is inserted at the intersection.

<Operation> According to the above technical means of the present invention, after the tip of the heat-bonding tape is fed from the feeding path into the rotation path of the pin, the pin is rotated to move the tip of the heat-bonding tape to the outer periphery of the pin. When the bundle is wound and continuously folded and heat-welded by a folding means to form a folded portion around the pin, and then the bound object is carried in from the upstream side of the transport path onto the lifting table, the pin is removed. As the heat-bonding tape rotates and winds around the bundle to be bound through the space of the elevator, the lift also rises to pinch the bundle to the sandwiching surface and compress it, and then unwind the heat-bonding tape. After pulling back to the road side and tensioning it, the heater approaches and the heat-bonding tape is overlaid on the above-mentioned folded part and thermocompression bonded, and in conjunction with this, the cutter also approaches and cuts the proximal end of the bundled heat-bonding tape. , Then as a means to pull out the pin The Philippines is withdrawn from the folded portion, is intended to carry-out to the downstream side of the conveying path the material to be bound body lifting platform is bundled descends from the 該台.

An embodiment of the present invention will be described below with reference to the drawings.

In this embodiment, as shown in FIG. 1, as a bound object (A), for example, paper money such as banknotes, securities or cards is used.
The sheet group (A) is bundled, and the sheet group (A) is supplied from a supply unit (not shown) to the transport path (1) at appropriate intervals.

The conveying path (1) is horizontally provided continuously to the supply section, and the paper sheet group (A) is placed on the path (1) and the conveying mechanism (1a) conveys it in the longitudinal direction. ) Is provided.

The transport mechanism (1a) carries in the paper sheet group (A) from the upstream side of the transport path (1) onto the lift table (2a) of the compression means (2) disposed midway in the transport direction of the path (1). At the same time, the bundle of paper sheets (A) is carried out from the lifting platform (2a) to the downstream side of the transport path (1). In the case of the present embodiment, the carry-in section (1a ₁ ) and the carry-out section are carried out. (1a ₂ ) is divided so that the next paper sheet group (A) can be carried in at the same time as it is carried out.

As shown in FIGS. 2 and 3, the carry-in section (1a ₁ ) is a side-reverse L-shaped upper claw (1a ₃ ) and a lower claw (1a) that holds the rear end of the paper sheet group (A) in the conveying direction in the vertical direction. ₄ ) are respectively arranged so that they can be vertically driven and can be driven back and forth in the transport direction, and when they are transported from the supply section to the carry-in section (1a ₁ ) by a sheet group (A) conveyor, etc. The claws (1a ₃ ) (1a ₄ ) are made to stand by outside the conveyance path (1), and when the paper sheet group (A) passes through the standby position, the upper and lower claws (1a ₃ ) (1a ₄ ) are conveyed to the conveyance path (1). 1), then move only the lower claw (1a ₄ ) downward to move it forward, and the front end face of the paper sheet group (A) is projected to the stopper (1a ₅ ) that can be retracted and retracted onto the transport path (1). performs alignment before the vertical shape by exposing, to the upper claw (1a ₃₎ is moved downward together sandwich the sheet group (a) trailing after immersion of the stopper (1a _5), upper and lower claws (1a ₃ (1a ₄₎ and is advanced sheet group (A) is carried into the lifting platform (2a) on the center of the compression means (2).

As shown in FIG. 1, the carry-out section (1a ₂ ) is moved up to one side of the transport path (1) so that the scraping plate (1a ₆ ) can be vertically driven in the direction orthogonal to the transport direction and can be driven back and forth in the transport direction. After the binding of the paper sheet group (A) is completed, the scraping plate (1a ₆ ) is moved backward while standing up, and when the scraping plate (1a ₆ ) reaches rearward from the rear end position of the paper sheet group (A), as shown in FIG. 1a ₆ ) is horizontally inverted and the transport path (1)
And then moved forward to be carried out from above the lift table (2a) to the subsequent process.

In addition, a gate template (1b) is erected in the middle of the transfer path (1) in the transfer direction so as to straddle the lifting table (2a) of the compression means (2) in a direction orthogonal to the transfer direction. the center of the lower end of (1b) to establish a Kamihagun vertical higher than the height rectangular insertion opening of (a) (1b _1).

Lifting table compression means (2) is to be laterally disposed to freely move up and down in the transport path (1) the middle and (2a), the gate-shaped plate insertion port (1b) (1b ₁₎ upper surface and later to the pin rotating means ( 3) The rotating wheel (3a) is formed on the inner peripheral surface at the same height position as the upper surface of the lifting table (2a) and the parallel clamping surfaces (2b) and (2b). The front and rear ends of (2a) in the conveying direction are arranged so as to project through the insertion opening (1b ₁ ) and the rotary wheel (3a), respectively, and a drive unit (2c) such as an air cylinder is attached to the lower end of the lifting table (2a). ) Are continuously provided, and when the paper sheet group (A) is loaded and unloaded, the drive unit (2c) lowers the upper surface of the lift table (2a) to the same height as the upper surface of the transport path (1). After the leaf group (A) is carried in, the lift table (2a) moves upward as shown in FIG. 7, and the upper surface of the paper sheet group (A) is sandwiched between the two folding surfaces (2b) (2b).
Press against and compress vertically.

In addition, the upper surface of the lifting table (2a) is formed by dividing a portion intersecting with a pin rotation path (3e), which will be described later, in the illustrated example, the intermediate portion in the transport direction in a direction orthogonal to the transport direction. ), A drive unit (2e) such as an air cylinder is provided in series so as to be vertically movable separately from the lifting platform (2a), and the drive unit (2e) is used when the paper sheet group (A) is loaded or unloaded. Causes the upper surface of the dividing table (2d) to move up to the same height as the upper surface of the lifting table (2a), and otherwise the dividing table (2d) moves downward to heat the tape on the upper surface of the lifting table (2a). (B) A space (2f) for insertion is formed as a recess.

The pin rotating means (3) is provided with an annular rotating wheel (3a) either before or after the gate pattern plate (1b) in the conveying direction, and is orthogonal to the conveying direction with a space shorter than the longitudinal dimension of the sheet group (A). Supported rotatably in the direction of
It is formed to have a diameter larger than the vertical height dimension and the lateral dimension of the, and the pinching surface (2b) of the compression means (2) is partially formed at an appropriate position on the inner peripheral surface and the motor is formed on the outer peripheral surface. The drive parts (3b) such as the above are directly linked or linked via a transmission belt (3b ₁ ) as shown in the figure, and in the normal state, the clamping surface (2b) is made horizontal and the lifting table (2a) is The paper sheet group (A) is stopped so as to be parallel to the upper surface, and is rotated in the same direction by the drive unit (3b) after the paper sheet group (A) is loaded and unloaded. In this embodiment, as shown in FIGS. 2 and 3, a rotating wheel (3a) is arranged on the rear side of the gate plate (1b) in the conveying direction, and the rotating wheel (3a) is driven counterclockwise by the drive unit (3b). First, in the rotating direction, the paper sheet group (A) is first rotated once after being carried in, and after being carried out, it is rotated by a predetermined angle as shown in FIG. 5, and after a predetermined time, a temporary heater part (5b) of the folding means (5) described later in detail. After the operation of) is completed, it is rotated once by rotating the remaining angle.

Further, a through hole (3c) is horizontally opened in the vicinity of the pinching surface (2b) of the rotating wheel (3a) in the transport direction, and the through hole (3c) is formed.
A pin (3d) is installed inside so that it can move freely in the transport direction.

The pin (3d) is inserted through the first half (3d ₁ ) in the conveying direction into the through hole (3c) so that the pin (3d) cannot rotate.
d ₁ ) A position eccentric from the axial center position of the end face, in the present embodiment, the other half part (3d ₂ ) is projected from the lower end portion toward the gate template (1b) in the same axial direction with a small diameter, and elastic body elastic body (3d ₃₎ and continuously provided such a spring (3d ₃₎ by allowed to repression as the small-diameter portion (3d ₂₎ is protruded from the through hole (3c) to the gantry plate (1b) side .

Therefore, when the rotating wheel (3a) is rotated by the drive unit (3b) of the pin rotating means (3), the small diameter portion (3d ₂ ) of the pin (3d) is also moved along with this, and the paper sheet group on the lift table (2a). It rotates in a circle around (A), but it intersects with this pin rotation path (3e) and lift (2a), that is, the small diameter part (3d ₂ ).
When passing through the lift table (2a), the division table (2d) moves downward to make one rotation through the space (2f) formed.

On the other hand, the rotating wheel (3a) side of the gate-shaped plate (1b) has its one side (B ₁₎ hot-melt adhesive is made from a coated e.g. kraft paper or the like in a band of heat adhesive tape (B) The feeding path (4) for feeding is formed in a shape orthogonal to the conveying direction.

In the feeding path (4), a strip plate (4a) slightly wider than the width of the heat-sealing tape (B) is arranged in the radial direction around the center of the rotating wheel (3a), and the strip plate (4a) is provided. Guide plate (4
b) is attached to form a partition between the two plates (4a) and (4b), and a delivery roller (4c) that can be rotationally driven in both forward and reverse directions is disposed on the upstream side of the delivery roller (4c). A pressing roller (4d) is provided on the outer peripheral surface of the pressing roller (4d) so that it can be moved in and out with the heating tape (B) sandwiched between the pressing roller (4d) and a drive section (4e) such as an air cylinder connected to the pressing roller (4d). The pressing roller (4d) is moved to the feeding roller (4c) side except when the rotating wheel (3d) is rotating.

Immediately after the paper sheet group (A) is carried out, the feeding roller (4c) is rotated forward as shown in FIG.
c) Pin rotation path from the tape reel (not shown) to the tip of the heat-sealing tape (B) by (4d) so that the coating surface (B ₁ ) faces in the opposite direction to the rotation direction of the pin (3d). After being fed into (3e), after being carried in, as shown in FIG. 7, the feeding roller (4c) is reversely rotated to pull back the heat-bonding tape (B) to the feeding path (4).

In the case of this embodiment, the outer end of the strip plate (4a) is connected to the portal plate (1b).
A drive unit (4e) such as an air cylinder is mounted on the belt-shaped plate (4a) so as to be swingably attached to the rear surface of the rotary wheel (3a) in the circumferential direction.
And the strip-shaped plate (4a) is swung in the rotation direction of the pin (3d) by the drive unit (4e) except after the paper sheet group (A) is carried out, and the feeding path (4) is in a stopped state. The pin (3d) is aligned on a straight line toward the small diameter portion (3d ₂ ), and the strip-shaped plate (4a) is swung in the opposite direction only while the sheet group (A) is being conveyed and the conveyance is started. ) Is in a straight line from the protruding position of the heater receiver (5b ₃ ) of the folding means (5) described later toward the clockwise direction.

The folding means (5) folds back the tip of the heat-bonding tape (B) fed from the feeding path (4) so that the coating surface (B ₁ ) is on the inside.
And a temporary heater part (5b) for thermocompressing the tip of the folded heat-bonding tape (B) in the width direction of the heat-bonding tape (B).

In this embodiment, the tack heater section (5b) is disposed movably in the direction intersecting the tack heater (5b ₁₎ a pin rotation path (3e) to the strip portion (4a) counterclockwise side ,
A drive unit (5b ₂ ) such as an air cylinder is connected to the outer end of the temporary heater (5b ₁ ) and a horizontal heater receiver (5b ₃ ) from the gate plate (1b) to the rotating wheel (3a) side. the retractable movement freely arranged in the conveying direction, the distal end of the drive unit such as an air cylinder at the proximal end of the receiving the heater (5b ₃₎ and (5b ₄₎ and continuously provided, receiving the heater at the time of projecting (5b ₃₎ Part is the pin rotation orbit (3
It is configured to be an inner mold of e) and to project on an extension line of the temporary heater (5b ₁ ) after the paper sheet group (A) is carried out.

Then, except after carrying out the paper sheet group (A), the temporary heater (5b ₁ ) is made to wait outside the pin rotation track (3e), and the tip of the heater receiver (5b ₃ ) is immersed in the gate template (1b). After the paper sheet group (A) is unloaded and the heat-adhesive tape (B) is unwound from the unwinding path (4), the respective heaters (5b ₂ ) (5b ₄ ) first receive the heaters (5b _3). ) Is projected, and while the rotating wheel (3a) has finished rotating for a predetermined angle and is temporarily stopped, as shown in FIG.
₁ ) is made to protrude and its welding surface (5b ₁ ′) is pressed against the heater receiver (5b ₃ ).

Folded portion (5a) small-diameter portion of the pin (3d) for rotation stop at a predetermined angular position and (3d _2), the tack heater (5b ₁₎
And receiving a heater configured de (5b ₃₎ and, Kamihagun (A)
Immediately after unloading, as shown in FIG. 4, the tip of the heat-bonding tape (B) is fed out from the feeding path (4) to the inside of the pin rotation orbit (3e) by a predetermined length, and the heater receiving (5
After protruding b ₃ ), as shown in FIG. 5, the small diameter part (3d ₂ ) of the pin (3d) rotates and hits the tip of the heat-deposited tape (B), and the heater receiver (5b ₃₎ ) And the welding surface (5b ₁ ′) of the temporary heater (5b ₁ ) are stopped temporarily, and the tip of the heat-sealing tape (B) is attached to the outer periphery of the small diameter portion (3d ₂ ). wound on the front substantially U-shaped, by the welding surface of the continuously tack heater (5b ₁₎ to (5b ') approaches the receiving heaters (5b _3), the tip of the heat adhesive tape (B) Are overlapped with each other and heat-welded together to form a folded portion (B ₂ ) around the small diameter portion (3d ₂ ).

In addition, in the vicinity of the rotation stop position of the pin (3d), that is, in the vicinity of the pin (3d) in the state where the rotation wheel (3a) is stopped rotation so that the pinched surface (2b) is horizontal, A heater (6) for thermocompression-bonding the heat-sealing tape (B) wound around the sheet group (A) to the folded portion (B ₂ ), and a cutter for cutting the heat-bonding tape (B) to a predetermined length ( 7) and 5) are arranged side by side with respect to the pin rotation orbit (3e) so that they can move toward and away from each other, and the pin (3d) is moved in the conveying direction to move the small diameter part (3d ₂ ) from inside the folding part (B ₂ ). A pin removing means (8) for pulling out is provided.

In the case of the present embodiment, the heater (6) is arranged in the clockwise direction from the rotation stop position of the pin (3d) with respect to the side surface of the rotating wheel (3a) of the gate template (1b), that is, in the anti-feeding direction of the heat-sealing tape (B). And a welding surface (6a) having the same width as the heat-sealing tape (B) is formed on the lower end of the driving part (6b) such as an air cylinder. In a normal state, the welding surface (6a) is rotated by the pin rotation trajectory (3
e) Face the outside to stand by, and after completion of pulling back the heat-depositing tape (B) to the feeding part (4), the welding part (6a) is moved downward by the drive part (6e) as shown in FIG. The wrapped heat-bonding tape (B) is placed on the folded-back portion (B ₂ ) and thermocompression bonded for a predetermined time, and then moved upward to return.

The cutter (7) is vertically movably arranged at a slight interval in the clockwise direction from the position where the heater (6) is arranged with respect to the side surface of the rotating wheel (3a) of the gate plate (1b). A blade edge (7a) wider than the width of the heat-sealing tape (B) is formed at the lower end, and a drive unit (7b) such as an upper end air cylinder is continuously provided, and the blade tip is outside the pin rotation track (3e) in its normal state. Immediately after the start of thermocompression bonding by the heater (7), the blade end (7a) is moved downward by the drive part (7b) as shown in FIG. Cut the part close to the crimping part.

Further, a horizontal cutter receiver (7c) is arranged on the extension line of the cutter (7) so as to be retractable from the gate template (1b) to the rotating wheel (3a) side, and the blade tip (downwardly moved) at the tip thereof ( The tape is formed by forming a notch (7c ₁ ) into which the 7a) fits, and inserting a heat-sealing tape (B) between the notch (7c ₁ ) and the downwardly moving blade edge (7a). (B) is made easy to cut.

The pin removing means (8) is provided with a push pin (8a) horizontal to the gate plate (1b) so as to be movable in the axial direction of the pin (3d), and has an abutting portion on the rotating wheel (3a) side. (8b) faces the part outside the rotation path of the small diameter part (3d ₂ ) of the end face of the insertion part (3d ₁ ), that is, the upper end part, and inside the through hole (3c) opened in the rotating wheel (3a). The drive part (8c) such as an air cylinder is connected to the opposite side in a row so that it can be inserted, and the abutting part (8b) does not push the end face of the insertion part (3d ₁ ) in its normal state. After the thermocompression bonding by the heater (6) is completed, the driving part (8c) projects toward the pin (3d) side as shown in FIG. 8 so that the abutting part (8b) is inserted into the insertion part (3b).
d ₁ ) The end face is inserted, the small diameter part (3d ₂ ) is pushed into the through hole (3c), and the small diameter part (3d ₂ ) is pushed out from the folded back part (B ₂ ).

 Next, the operation of such a binding device will be described.

First, before Kamihagun on the lifting platform (2a) (A) is inserted by the loading of the conveying mechanism (1a) (1a _1), dividing board (2
When d) is moved down, a space (2f) for inserting the heat-bonding tape (B) is formed on the upper surface of the lift table (2a), and the pressing roller (4
The feeding roller (4c) that is in contact with d) is rotated forward, and the tip of the heat-sealing tape (B) is moved from the feeding path (4) swung in the counter-rotational direction of the pin (3d) to the inside of the pin rotation path (3e). Then, the heater receiver (5b ₃ ) is projected toward a predetermined length, and the heater receiver (5b ₃ ) is projected to the counterclockwise side of the tip of the tape (B). (Fig. 4) Following this, after the pressing roller (4d) has separated from the feeding roller (4c), the rotating wheel (3a) is rotated by a predetermined angle and the small diameter portion (3d ₂ ) of the pin (3d) is heated. It hits the tip of the adhesive tape (B), folds it into a substantially U-shape and winds it, and then the temporary heater (5b ₁ ) moves it to the heater holder (5b1).
b ₃₎ a thermal adhesive tape (B) the tip protrudes thermocompression bonding to, around the folded portion of the small-diameter portion (3d ₂₎ (B ₂₎ is formed.
(Fig. 5) Then, the rotating wheel (3a) is rotated again to pull out the heat-bonding tape (B) from the feeding path (4), and the inner surface of the rotating wheel (3a) is inserted into the lifting surface (2d). The pin (3d) stops at a fixed position in parallel with the upper surface of (2a), and in conjunction with this, the split table (2d) is moved up to the same height as the upper surface of the lift table (2a), and then extended. The path (4) is rocked in the rotation direction of the pin (3d) and stands by. (FIG. 1) these days, Kamihagun (A) is loaded into the center of the lifting table (2a) from the upstream side of the carry section conveying path (1a ₁₎ start to the (1),該搬join the club (1a ₁ ) After the forward movement is completed, the dividing table (2d) is moved downward, the small diameter portion (3d ₂ ) of the rotating wheel (3a) and the pin (3d) makes one rotation, and the heat-adhesive tape (B) is fed from the feeding path (4). When the tape (B) is pulled out, the tape (B) passes through the space (2f) for inserting the heat-sealing tape (B), and the paper sheet group (A) on the lift table (2a).
After that, the elevating table (2a) moves upward, and the paper sheet group (A) is sandwiched between the two nipping surfaces (2b) and (2b) and compressed in the vertical direction. (Fig. 6) The pressure roller (4d) is moved to the feeding roller (4c) side in conjunction with the upward movement of the lifting table (2a), and the chestnut feeding roller (4c).
Reversely rotates and pulls out the heat-bonding tape (B) to the feeding path (4) side, and immediately after that, the heater (6) begins to move downward and the heat-bonding tape (B) that has made a round is folded back (B ₂ ). It is piled on and thermocompression-bonded, and in conjunction with this, the cutter holder (7c)
And the cutter (7) moves downward to cut the base end of the bound heat-bonding tape (B). (FIG. 7) After that, the push pin (8a) of the pin removing means (8) projects, pushes the pin (3d), and the small diameter portion (3d ₂ ) is pushed out from the folded portion (B ₂ ). (Fig. 8) In conjunction with this, the lifting platform (2a) moves downward and the split platform (2d) moves upward, and the upper surfaces of these two platforms (2a) (2d) are the same as the upper surface of the transport path (1). After the height is reached, the carry-out section (1a ₂ ) is started to carry out the bundled paper sheet group (A) from the lift table (2a) to the downstream side of the transport path (1). (FIG. 9) After that, the above-described operation is repeated.

Therefore, in the present embodiment, the division table (2d) is arranged at the intersection of the upper surface of the lift table (2a) and the pin rotation track (3e) so as to be vertically movable separately from the lift table (2a). Paper group (A)
When loading and unloading, the upper surface of the split stand (2d) is moved to the same height as the upper surface of the lift stand (2a), and the split stand (2d) moves down when the pin (3d) is rotated. (2
a) Since the space (2f) through which the pin (3d) and the heat-sealing tape (B) are inserted is provided on the upper surface, the space (2f) is not caught even when the size of the paper sheet group (A) is small. It can be passed smoothly.

Further, in the conventional device described above, since the tape base end portion is overlapped with the folded back portion and thermocompression bonded while holding the tip of the heat-bonding tape by the holding member, the heat-melting adhesive on the inner surface of the folded back portion is also melted and held. There is a problem that it is easy to adhere to the outer surface of the member, and when the holding member is pulled out after bundling, the folded portion is also pulled out and the heat-welded portion is easily peeled off, resulting in defective binding, but the pin (3d) of this embodiment Rotation stop position, that is, the insertion position of the small diameter portion (3d ₂ ) with respect to the folded portion (B ₂ ) and the thermocompression bonding position of the heater (6) are shifted in the longitudinal direction of the heat-bonding tape (B). At the time of welding, the heat-melting adhesive on the inner surface of the folded-back portion (B ₂ ) melts and the small-diameter portion (3
It does not adhere to the outer surface of d ₂ ), and when the pin (3 d) is punched out, the folded-back portion (B ₂ ) is not pulled out together and the heat-welded portion does not peel off.

The transport mechanism (1a), the compression means (2), the pin rotation means (3), the feeding path (4), the folding means (5) and the pin removing means (8) are not limited to those described above, respectively. for example such that also serves as tacking heater means folding the heater (6) (5) (5b 1), various modifications are possible if operate similarly.

<Effects of the Invention> Since the present invention has the above configuration, it has the following advantages.

After the tip of the heat-sealing tape is fed out into the rotation path of the pin from the feeding path, the pin is rotated to wind the tip of the heat-bonding tape around the outer periphery of the pin, and the heat-welding is continuously performed while being folded back by the folding means. Then, the folded part is formed around the pin, and then the bundle to be bound is loaded onto the lift table from the upstream of the transport path, the pin is rotated once and the heat-bonding tape passes through the space of the lift table to bind the bundle. As it is wound around the body, the lifting table rises and the bundled body is sandwiched and compressed between the sandwiched surface, and then the heating tape is unwound and pulled back to the road side to tension, then the heater approaches. Then, the heat-bonding tape is overlaid on the above-mentioned folded-back portion and thermocompression-bonded, and in conjunction with this, the cutter also approaches and cuts the proximal end of the bound heat-bonding tape,
After that, the pin is pulled out from the folded-back portion by the pin pulling-out means, and the elevating table descends to carry out the bound object to be bound to the downstream side of the feeding path. In addition, it is possible to securely hold the tip of the heat-bonding tape without making it free.

Therefore, as compared with the conventional one in which the transport direction of the bound object changes many times, not only the structure of the device is simplified and the entire device is made compact, but also the bundling speed can be increased,
Even if there is a slight variation in the hardness of the heat-bonding tape, there is no mistake in holding the heat-bonding tape tip compared to the conventional one in which the tip of the heat-bonding tape is slanted upward and inserted between the holding members. The dressing tape can be reliably wound.

By changing the stop position of the bundle to be loaded into the compression means from the transport path, that is, the stop position on the lift table in the transport direction, the feeding position of the heat-bonding tape with respect to the bundle can be moved.

Therefore, as compared with the conventional one in which the feeding position of the heat-bonding tape with respect to the bundle is fixed, the binding position can be changed without replacing the parts, and the size of the bundle can be easily changed. Can be prevented.

[Brief description of the drawings]

FIG. 1 is a vertical sectional front view of a bundling apparatus showing an embodiment of the present invention when a bundled object is carried in. FIG. 2 is a vertical sectional side view of the same, FIG. 3 is a transverse plan view thereof, and FIG. FIG. 5 is a vertical sectional front view showing a partially reduced portion of the heat-adhesive tape feeding portion, FIG. 5 is a vertical sectional front view partially reduced at the time of forming the folded portion, and FIG. Fig. 7 is a partially cutaway vertical front view, Fig. 7 is a partially cutaway vertical front view showing the time when the heat-bonding tape is bound, and Fig. 8 is a partially enlarged vertical side view when the pin is pulled out. FIG. 9 and FIG. 9 are front views in vertical section showing a partially contracted state of the bundled objects to be bound. A: Bundling object (paper sheet group), B: Heat-bonding tape B ₁ ...... Coating surface, B ₂ ...... Folding part 1 ...... Conveying path, 1a ...... Conveying means 2 ...... Compressing means, 2a ...... Lifting platform 2b …… Clamping surface, 3 …… Pin rotating means 3a …… Rotating wheel, 3d …… Pin 4 …… Feeding path, 5 …… Folding means 6 …… Heater, 7 …… Cutter 8 …… Pin Removing means 7: folding guide, 8: heater

Claims (5)

(57) [Claims] 1. A heat-bonding tape having a heat-melting adhesive coated on one side is wound around a body to be bound, and a folded-back portion obtained by folding one end of the heat-bonding tape and the other end of the heat-bonding tape are thermocompression bonded. In the binding device, a transport path for placing and transporting the to-be-bound object is horizontally provided, and a pair of upper and lower compression means for vertically compressing the to-be-bound object, and this compression means of the compression means. Pin rotating means for rotating the pins in a direction orthogonal to the conveying path direction are respectively arranged so as to surround the circumference, and a feeding path of the heat-bonding tape is formed in a direction orthogonal to the conveying path direction toward the rotation trajectory of the pins. Along with this, there is provided folding means for winding the tip of the heat-bonding tape fed near the feeding path around the outer circumference of the pin and folding it back for thermocompression bonding. Flexible heat-bonding tape And a cutter for connecting and disconnecting the heat-bonding tape are arranged close to each other, and a pin removing means for moving the pin in the conveying path direction and pulling it out from the folded portion formed by the folding means is provided. Characterizing binding device. 2. A transport means for carrying the bundled objects into the compressing means and the pin rotating means from the upstream side along the transport path, and unloading the bundled objects bound from these means to the downstream side. The binding device according to claim 1, which is provided. 3. The pin rotating means comprises an annular rotating wheel,
The binding device according to claim 1, wherein a pin is arranged on the rotating wheel so as to be movable in the direction of the conveying path. 4. The compression means is composed of a vertically movable lifting table arranged in the middle of a conveying path, and a concavity surface formed partially on the inner peripheral surface of a rotating wheel and parallel to the upper surface of the lifting table. The bundling device according to claim 3. 5. The binding device according to claim 4, wherein a space through which the heat-bonding tape is inserted is formed at the intersection of the lifting platform, the pin rotation track, and the inside of the track.