JPH082506A - Band-wrapping device for papers, cards, etc. - Google Patents

Abstract

PURPOSE:To provide a device to band-wrap in such a manner that a tape on which a hot melting type adhesive is applied is wound around an article to be band-wrapped, the tape is tightened, and then, the tape is welded by the adhesive by pressing a heat-sealer to the tape. CONSTITUTION:A pair of tape guides 20 which surround articles F to be band- wrapped on a table surface, around a vertical surface are provided. The tape guides 20 are approachable/separatable, and the approaching location is adjustable by a movable/fixable stopper. A tape T is fed when the pair of tape guides 20 approach each other, and the leading end of the tape T is fixed, and the tape guides 20 are opened and pulled back to tighten the tape, and the tape is heat-sealed by a heat-sealer 50. By this method, one unit of device can be used for tapes with different widths in the same manner.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for collectively banding office paper, lottery tickets, theater admission tickets, several notebooks, etc., and in particular, a hot-melt type adhesive is applied on one side. The present invention relates to a device for performing the above band-sealing using a tape.

[0002]

2. Description of the Related Art As a conventional banding device of this type, Japanese Patent No. 1265971 (Japanese Patent Publication No. 59-40686) previously developed by the applicant of the present application is known. This publication describes a method and a device for performing the above band-sealing by using a tape having a hot-melt type adhesive applied on one side, and the outline thereof is described in the claims. As described above, at least the tip of the tape coated with the hot melt adhesive on one side is sandwiched, and the laminated object to be sealed is supplied from the adhesive coated surface side, and the tape is coated so that the adhesive coated surface is on the inside. Wrap it around the banding without looseness, put the base side of the tape on one side of the laminated object, extend it from the ridge line of the laminated banded object without bending it, and bend the tip of the tape 90 ° at this ridge line At this time, the adhesive surfaces of the tapes are put together and heated by heating, so that the tape that is continuous with the supply side is cut to a size longer than the excess end of the seal part on the tip side, and then the longer end is the outside. , A pair of A method is described in which the ends are laid down, and heat and pressure are applied from the outside of these ends to melt the adhesive applied to the longer surplus end, and the adhesive is adhered to the outside of the band seal. An apparatus for carrying out this method is claimed. 2 and the section of the embodiment of the present invention and 1 and FIGS. 1 to 5 are described in detail, and there are tentative effects.

However, the structure in which the tape is wound around the object to be sealed is complicated, and in particular, the structure for fitting the adhesive application surfaces to each other without looseness is complicated as described above. It requires a station and the device is large.

[0004]

SUMMARY OF THE INVENTION The present invention is intended to wind a tape for banding around an object to be banded. Even if the width of the tape is different, the tape to be wound is always supported by a simple operation so that the tape can be wound securely. It is to make it easier.
This is also to prevent the tape to be wrapped from wrapping around the article to be sealed without slackening, and not loosening even during heat sealing. Another object is to provide the market with a device that is simplified and that is less prone to failure.

[0005]

In order to achieve the above-mentioned object, the present invention comprises a main body of a banding device, a tape guiding device, a tape feeding and binding device, a tape welding device, and a tape cutting device. The main body of the banding device is a table having an upper surface formed of a top plate, and an escape groove having a width equal to or larger than the tape width without the top plate is formed in the center thereof, and the tape guide device is provided in the escape groove portion. In the apparatus, the tape guide is provided in a substantially closed loop shape so as to vertically surround the article to be sealed on the table surface, and the tip end of the tape guide is located under the top plate. The tape guide is composed of a pair of tape guides, in which the U-shaped cross-section mold members face each other to form a tape guide groove, and the pair of tape guides are provided with the clearance. It is equipped so that it can approach and separate in the transverse direction of the escape groove from the outermost standby position for maximum separation to the closest position in the escape groove, and the approach interval of the pair of tape guides can be adjusted by a movable fixed stopper. When the pair of tape guides are close to each other, the tape feeding and binding device has a hot-melt adhesive on the inner surface for band-sealing in the tape guide groove of these guides. A reversibly rotating pinch roller that feeds in and pulls back the coated tape, a receiving plate that advances in the transverse direction into the escape groove at a position below the top plate, and a receiving plate that advances and retracts in the escape groove At this time, there is provided a tape tip pressing member which rises from the lower standby position and comes into pressure contact with this lower surface. A banding device for paper, cards, etc., characterized by comprising the above components.

In order to achieve the above-mentioned object, the tape welding device of the band-sealing device for paper, cards, etc. is provided on the lower surface of the receiving plate from the outside of the tape passage conveyed from the pinch rollers to the pair of tape guides. A heat sealer that rises and overlaps with the lower surface of the receiving plate in a loop is pressure-contacted, the tape cutting device is equipped with a tape cutter between the heat sealer and the pinch roller, and the heat sealer is After being pressed against the lower surface of the receiving plate, it is preferable that the tape slides while being pressed against the lower surface of the receiving plate in a direction in which the tape is tightened.

In order to achieve the above object, in the invention according to claim 2, there is an object to be sealed on the table surface, the pair of tape guides are close to each other, and the receiving plate is in the tape escape groove. The pinch roller starts to rotate in the forward direction, and the fed tape is supported on both sides of the pinch roller to advance in the closed-loop tape guide, and the tip of the pinch roller moves to the receiving plate. With the signal reaching the lower side as an input signal, the pinch roller temporarily stops, then the pressing member advances from the separated position to the pressure contact position, presses and fixes the tape on the receiving plate, and then the pair of tapes The guide separates to the standby position, then the pinch roller reverses, tensions the tape and then stops, and the heat sealer stops after the pinch roller completes the reverse operation. After rising from the lower standby position, the tape in the tensioned state is overlapped on the lower side of the tip, pressed against the lower surface of the receiving plate, and then continuously slid along the tape surface in the tensioning direction of the tape. , The cutting device separates downward, the heat sealer moves upward, and the cutting device operates at the initial stage of pressing against the lower surface of the receiving plate, and the pressing member returns to the standby position almost at the same time as the operation of the cutting device. Preferably, it is characterized by

In order to achieve the above-mentioned object, the pinch roller of the band-sealing device for the paper, card, etc. according to the third aspect of the invention is transmitted through a reversible rotation motor and a slippery transmission means. Is preferable. .

In order to achieve the above-mentioned object, all the sequential reciprocating drives other than the driving of the pinch roller of the band-sealing device for the sheets, cards, etc. are provided with a corresponding several cams provided on a common rotary shaft, and thereby, the corresponding cams. It is preferable that it is characterized by a reciprocating link mechanism.

[0010]

In the specified invention according to claim 1, first, prior to use, when the distance between the pair of tape guides is closest to each other, the distance between the tape guide grooves formed by them is used. The movable and fixed stopper is moved to correspond to the tape width so as to have an interval for supporting both side edges of the tape. Then, the tape is fixed again, and the tape guide is brought close to the stopper.

When the tape guide further approaches and the receiving plate advances into the tape escape groove, the pinch roller is normally rotated, and the tape is supported by the pair of tape guides on both side edges. The pinch roller is stopped when the tip of the tape guide reaches a lower side of the receiving plate after making a round around the tape guide in a substantially closed loop. During this time, since the pair of tape guides correspond to the tape width, the tape can be fed accurately without moving left and right. Next, operate the pressing member to raise it from the lower standby position, and by this and the receiving plate, between the pair of tape guides,
Hold near the tip of the tape to fix it.

Next, when the tape guide is separated, the tape is disengaged from the tape guide, the pinch roller is reversed, the tape is pulled back, and the object to be packaged is surrounded, and the tape is tensioned. Almost at the same time, the pinch roller is stopped. Next, raise the heat sealer from the lower standby position, melt the hot melt adhesive applied to the inner surface of the tape that is connected to the supply side by the heat sealer, and at the same time when welding these tapes, move the cutting device. The blade is actuated to cut the tape between the heat sealer and the tape source support device. In this way, the object to be sealed such as a paper card is band-sealed with the tape on the table surface.

The above-mentioned pressing member and heat sealer are returned to their original positions, the receiving plate is retracted to the outside of the escape groove, and is removed from the tightly bound tape. After that, the banded material is removed from the table surface. When the items to be packaged are different or the width of the tape used is different according to the customer's request, the gap between the pair of tape guides is closest to each other according to the tape width used. As in the previous time, adjust the position of the movable fixed stopper.

According to the invention of claim 2, claim 1
In addition to the action of the invention described above, the heat sealer moves upward from the lower side of the tape supply passage, overlaps the tape on the lower surface of the receiving plate and press-contacts, and then slides while pressing the lower surface of the receiving plate in a direction in which the tape is tightened. Therefore, in addition to the invention according to claim 1, the heat sealer slides in the direction cut by the cutting device while pressing the looped tape against the receiving plate. The tapes in the process of welding are slid against each other in the tightening direction to enhance the binding force.

According to the invention of claim 3, claim 2
The operation of the described invention is automatically performed sequentially.

According to a fourth aspect of the present invention, the pinch roller is transmitted through a reversible rotation motor and a slippery transmission means. Therefore, the pinch roller is rotated in the reverse direction to form the tape. When tensioned to a certain extent, slippage will occur in the slipperable transmission means portion and will not overstress the tape or overload the motor.

According to the fifth aspect of the present invention, all the sequential reciprocating drives other than the driving of the pinch rollers are performed by corresponding several cams mounted on a common rotating shaft and a link mechanism reciprocating by the cams. According to the feature, once started, each reciprocating member operates sequentially and accurately with the rotation of the common rotary shaft.

[0018]

【Example】

Embodiment 1 is shown in FIG. 1 to FIG. 6, and is described in claim 1 to claim 4.
It is an example including the described invention.

1 to 5, the apparatus A is a banding apparatus body, B is a tape guide apparatus C, a tape supply and binding apparatus, D is a tape welding apparatus, and E is a tape cutting apparatus.

The main body A of the banding device is formed in a box shape, the upper surface of which is formed by the left and right top plates 10 and 11 to form a table 12, and the tape T without the top plates 10 and 11 in the center escapes. The groove 13 is formed. This escape groove 1
The width of 3 is still 5 to 1 more than the widest tape T used
It is formed to have a width of about 0%.

Further, the tape guide device B is provided with the escape groove 1
It is provided in three parts, and a pair of tape guides 20 bridge the escape groove 13 to surround the belt-like object F placed on the table 12 in the vertical direction, so that it is a square shape when viewed from the side. Installed in the tape guide 20
The lower part 22 and the lower part 22 are located nearer to one end of the escape groove 13 at a position lower than the top plates 11 and 12.

Further, the cross-sectional shapes of the pair of tape guides 20 are U-shaped and face each other, and a tape guide groove 23 of a substantially closed loop is formed by the pair of U-shaped mold members facing each other. Has been formed.

The above-mentioned pair of tape guides 20 have their inner edges movable toward and away from each other in the transverse direction of the escape groove 13 from the maximum standby position outside the escape groove 13 to the closest position at the center of the escape groove 13. It is equipped on the body A of the banding device.

Further, the distance when the pair of tape guides 20 approaches each other is adjustable by a stopper 25 screwed to a feed screw 24 which is rotatable only around the axis and does not move axially in the main body A of the band-sealing device. In the illustrated embodiment, a part of the lever 26 that moves integrally with the pair of tape guides 14 is provided so as to abut. The pair of tape guides 20 are moved symmetrically,
They are connected by a connecting link 27. The carry-in end portion 28 of the tape guide 14 passes through the vicinity of the front end portion 21 and is provided obliquely downward to the lower side.

The tape supply and binding device C is further provided with a tape guide path 30 for feeding the tape T from the carry-in end portion 28 of the tape guide 20, and a pinch roller 31 for holding the tape T in the middle of the tape guide path 30. One roller shaft 32 of the pinch roller 31 is connected to the reversible rotation motor M1 by a flat belt 33 and a pulley 34 which are a kind of slippery transmission means. The slippery transmission means is not limited to the above-described example, and a slip disk type torque converter or the like is not particularly limited. On the upstream side of the pinch roller 31, there is a raw fabric support device 35 for supporting the roll-shaped roll of raw tape, which is a part of the band-sealing device main body A.
Between them are several guide rollers 36 that eliminate tape slack.
And a dancer roller 37 is provided.

Further, in the tape feeding and binding device C described above, in order to further fix the tape T at the tip end portion 21 of the table guide 20, between the tape guide 20 and the top plate 10 or 11 at the position of the tip end portion 21. A receiving plate 38 that advances into the escape groove 13 and recedes under the top plate 10 or 11 is provided on the main body A of the band sealing device so as to be movable in the transverse direction of the escape groove 13.

Further, when the receiving plate 38 is advanced into the escape groove 13, the pressing member 39 which rises from the standby position below the receiving plate 38 and comes into pressure contact with the lower surface of the receiving plate 35 is part of the main body of the band-sealing device. , And in the example shown,
One end or a part of the pressing member 39 is pivotally attached to a part of the band-sealing device main body A by a horizontal pivot 40 in the transverse direction of the escape groove 13, and the position where the tip of the pressing member 39 contacts the receiving plate 38 is the pressing member. The tape 39 is in contact with the receiving plate 38 with a slight inclination toward the tip of the tape T rather than the right angle. Therefore, when the tape T is pulled back, the pressing member 39 rotates about the pivot 40, and the pressing member 39 further strongly abuts the lower surface of the receiving plate 38, and the tape T
I try to hold it strongly. That is, the pressing member 39
Acts as a kind of wedge.

A sensor 41 for detecting the tip of the tape T traveling in the tape guide 20 is provided near the tip 21 of the tape guide 20, and the forward rotation of the motor M1 is stopped by this detection signal. Then, after a while, it started to reverse. The tape feeding and binding device C is constructed as described above.

The tape welding device D is constructed as follows. The heat sealer 5 is provided below the carry-in end 28 of the tape guide 20, that is, outside the closed-loop tape guide 20.
0 is provided, and the lower part of the heat sealer 50 is pivotally attached to the vertical moving body 52 by a horizontal shaft 51 that is horizontal in the transverse direction of the escape groove 13, and the vertical moving body 52 is provided in a part of the banding device body A. It is slidably mounted on a vertical guide 53, and the heat sealer is normally brought into contact with a second stopper 55 provided on the vertical moving body 42 by a spring 54 so as to be in a vertical posture. The top surface of the heat sealer 50 is curved so as to be convex upward, and the tape is inclined so that the tip end thereof is low. Therefore, the line 0 connecting the tip 56 of the unevenly distributed heat sealer and the horizontal axis 51 is inclined to the right with respect to the horizontal axis 51 in FIG. 5 from the direction of the guide 53, that is, the rear end of the tape T is sealed. It is inclined in the direction of winding.

The heat sealer 50 is the vertical moving body 5.
2 is raised from the lower standby position together with 2, and the tape T is superposed on the lower surface of the receiving plate 38, which is closer to the tip of the tape guide 20 than the portion where the pressing member 39 contacts.

The tape cutting device E is an ordinary scissor type device and is provided in the tape guide path 30 between the tape welding device D and the pinch roller 31, and one fixed blade of the cutting device D is a band seal. It is fixed to a part of the apparatus main body A, and the other movable blade 61 is provided so as to be slidably engaged therewith to reciprocate. The movable blade 61 of the cutting device D is actuated at the timing when the top surface of the heat sealer 50 comes into contact with the lower surface of the receiving plate 38 and the sliding start is started laterally.

Operation of Embodiment 1 In this apparatus, the tape guide 20, the receiving plate 35, the pressing member 39, the vertical moving body 52, and the movable blade 61 may be reciprocated by any suitable means, for example, by connecting with an independent air cylinder device. These electromagnetic control valves may be used to control forward / reverse rotation and start / stop of the reversible rotation motor M1 for driving the pinch roller, based on a program predetermined by an electromagnetic or electronic sequencer. As shown in the example, each cam provided corresponding to each reciprocating member is used on the common rotating shaft 70 provided under the top plate 10 of the band-sealing device main body A, and each reciprocating motion is performed by this cam. In some cases, the levers are reciprocally moved in order by the lever.

The operation of the first embodiment is defined by claim 3
The operation of the present invention described above is generally performed. The difference lies in that the pressing member 39 has the pivot 40 as the center of rotation, the tip end thereof rises from the standby position, the tape T is held by the receiving plate 38, and the pinch roller 31 reverses.
When the tape T is pulled back, the holding force of the holding member 39 around the pivot 40 is further increased by the frictional force between the tape T and the tip of the holding member 39, and the holding force of the tape T is pulled back. It does not come off from 39 (see FIG. 4).

The tape T pulled back by the pair of pinch rollers 31 has several guide rollers 36 and dancer rollers 3 provided between the pinch roller 31 and the original fabric supporting device 35.
The relaxation is absorbed by 7.

Further, the heat sealer 50 rises together with the vertical moving body 52, and the tip of the tape comes into contact with the lower surface of the receiving plate 38 (see the solid line in FIG. 5), and the vertical moving body 52 is further lifted. When the heat acts, the lower part of the heat sealer 50 is pivotally attached to the vertical moving body 52 by the horizontal shaft 51,
As described above, the line 0 connecting the horizontal shaft 51 and the unevenly distributed tip 56 of the heat sealer 50 is inclined to the right in FIG. 5 from the direction of the guide 53 as described above.
The heat sealer 50 receives a force that tilts rightward about the horizontal axis 51 due to the rising force of the tape, and the upwardly convex curved surface slides rightward in FIG. It acts to weld each other over a fairly large area.

When the vertical moving body 52 is lowered after the welding is completed, the pressure on the top surface of the heat sealer 50 is released, and the heat sealer 50 receives the second force by the restoring force of the spring 54.
After returning to the original position where it hits the stopper 55, the heat sealer 50 becomes vertical again.

Second Embodiment In addition to the second embodiment, in addition to the second embodiment, a main part is provided in the room under the top plate 10 of the band-sealing device A as shown in FIGS. A common rotary shaft 70 that rotates at a rotational speed set in one direction by the drive motor Mo is provided horizontally, and the rotary shaft 70 has cams 71, 72, 73, 7
4 and 75 are fixed and corresponding link mechanisms 26, 27, 81, 82, 83 and 84 and 8 such as appropriate levers are provided.
5, the tape guide 20, the receiving plate 38 pressing member 39, the vertical moving body 52, and the movable blade 61 are operated in a predetermined order.

This state is schematically shown in FIG. The main motor Mo may be directly connected to the rotary shaft 70, but may be connected via an electromagnetic clutch 76 and an appropriate speed reducer 77 as needed. In this embodiment, after the main motor Mo is driven, an activation start switch (not shown) is turned on at each banding operation, the electromagnetic clutch is closed and the rotary shaft 70 is rotated once to open the electromagnetic clutch. The rotary shaft 70 is stopped. During the rotation of the rotary shaft 70, all the operations described in the first embodiment are performed in order (see FIG. 7).

[0039]

According to the first aspect of the invention, since it is constructed and operates as described above, the object to be sealed is placed on the table surface, and the pinch roller and the reciprocating constituent members are arranged. If it is operated in the same way, the tape to be sealed on the table surface is guided by the pair of tape guides, easily surrounds it, fixes the tip of the tape, and then separates the pair of tape guides from each other to separate the tapes. The pinch roller is reversed to securely bind the object to be banded, and the tape that is continuous to the original side is cut while welding with a heat sealer, so that the object to be banded can be banded in a tightly bound state.

Further, depending on the purpose, even when tapes having different tape widths are used, if a movable and fixable stopper that regulates the distance at which the pair of tape guides are closest to each other is adjusted once, then the pair of tape guides will hit the pair of stoppers. Until the tape guides approach each other and the closest spacing becomes the same thereafter, the pair of tape guides are adjusted to the position according to the tape width,
The tape supply is stable and the banding is accurate.

According to the second aspect of the present invention, the heat sealer is pressed against the tape and then slides in the binding direction of the tape.
The hot-melt adhesive in the melted part starts solidification along with horizontal sliding of the heat sealer, and when the heat sealer separates, part of the tape is fixed by the adhesive that has already solidified, so immediately after heat sealing. It has the effect of significantly reducing peeling.

In the invention described in claim 3, claim 1
Since the work performed by the described invention is performed in accordance with a predetermined sequence, the work performed each time becomes uniform and the effect thereof becomes uniform.

According to the fourth aspect of the present invention, the pinch roller and the motor for driving the pinch roller are connected by the transmission means accompanied by sliding, so that the tape for binding is not applied with an overpulling force and the motor is not overloaded. .

According to the fifth aspect of the present invention, since each reciprocating motion is controlled in order by the corresponding cams of the common rotary shaft, operation by a change in voltage or a change in air pressure such as a drive device using air pressure is performed. The control system is simplified because there is no unevenness, a reliable operation is performed, and a troublesome sensor for confirming the end of each operation is unnecessary.

Effects of Embodiment 1 The effects of the inventions of claims 1 to 4 are also obtained. The effects of the second embodiment are achieved in combination with the effects of all claims.

[Brief description of drawings]

FIG. 1 is a side view showing the main mechanism of the entire apparatus.

FIG. 2 is a front view showing the movement mechanism of the tape guide.

FIG. 3 is a front view showing a motion mechanism of a receiving plate.

FIG. 4 is a side view showing the middle of tape binding.

FIG. 5 is a side view showing a heat sealing operation.

FIG. 6 is an explanatory diagram showing a relationship between a rotary shaft and each reciprocating member.

FIG. 7 is an operation diagram.

[Explanation of symbols]

 A tape sealing device main body B tape guiding device C tape supply binding device D tape welding device E tape cutting device F tape sealed object T tape 10, 11 top plate 12 table 13 escape groove 20 tape guide 21 tip 22 tape guiding groove 24 stopper 30 Tape guide path 31 Pinch roller 35 Raw fabric support device 37 Dancer roller 39 Holding member 50 Heat sealer 60 Fixed blade 61 Movable blade

Claims (5)

[Claims] 1. A banding device body, a tape guide device, a tape supply binding device, a tape welding device, and a tape cutting device, wherein the banding device body is a table whose top surface is a top plate. An escape groove having a width equal to or larger than the tape width without the top plate is formed in the center, and the tape guide device is provided in the escape groove portion, and the tape guide vertically guides the object to be sealed on the tape surface. In a device in which the tape guide is equipped with a substantially closed loop shape so as to be surrounded in a direction, and the distal end portion of the tape guide is located under the top plate, the tape guide is composed of a pair of tape guides, and these tape guides have a cross section of The tape-shaped grooves are formed so that the V-shaped members face each other, and the pair of tape guides extend from the standby position for maximum separation outside the clearance groove to the closest position in the clearance groove. The tape guide binding device is provided so as to be able to approach and separate in the transverse direction of the groove, and the approach interval between the pair of tape guides is adjustable by a movable and fixed stopper. When the tape guides are close to each other, a tape having a hot-melt adhesive applied to the inner surface for band-sealing is fed into the tape guide groove of these guides, and the reversible pinch roller and the above-mentioned ceiling are pulled back. A receiving plate that advances and retracts in the escape groove in the transverse direction at a position below the plate, and a tape tip presser that rises from a lower standby position and presses against the lower surface when the receiving plate is advancing in the escape groove. It has a member. A banding device for paper, cards, etc., characterized by comprising the above components. 2. The tape welding device ascends from the outside of a tape passage conveyed from the pinch roller to a pair of tape guides on the lower surface of the receiving plate, and presses the lower surface of the receiving plate in a loop to form a loop. A heat sealer is provided, the tape cutting device is equipped with a tape cutter between the heat sealer and the pinch roller, and the heat sealer is pressed against the lower surface of the receiving plate, and then is attached to the lower surface of the receiving plate in a direction in which the tape is tightened. 3. The band-sealing device for paper, cards, etc. according to claim 2, wherein the band-sealing device slides while being pressed. 3. The pinch roller starts forward rotation when there is an object to be sealed on the table surface, the pair of tape guides are close to each other, and the receiving plate is in the tape escape groove. With this, the fed tape is supported on both sides of the tape, travels through the closed-loop tape guide, and the pinch roller is temporarily stopped by using the signal whose tip reaches the lower side of the receiving plate as an input signal. Then, the pressing member advances from the separated position to the pressure contact position, presses and fixes the tape on the receiving plate, and then the pair of tape guides separates to the standby position, and then the pinch roller reverses to move the tape. The heat sealer rises from the lower standby position after the pinch roller completes the reverse rotation operation, and the tape in the tensioned state is moved to the lower side of its tip. And press them against the lower surface of the receiving plate, and then slide the tape along the tape surface in the direction in which the tape is tensioned, and then separate from the downward direction. 3. The band-sealing device for sheets, cards, etc. according to claim 2, wherein the band-pressing device is actuated in the initial stage when pressed against the lower surface of the plate, and the pressing member returns to the standby position almost at the same time as the operation of the cutter. 4. The band-sealing device for sheets, cards and the like according to claim 4, wherein the pinch roller is transmitted through a reversible rotation motor and a transmission means capable of slipping. 5. The sequential reciprocating driving other than the driving of the pinch roller is performed by corresponding several cams provided on a common rotating shaft and a link mechanism reciprocating by the cams. 5. A band-sealing device for paper, cards, etc.