JP3318258B2 - Obi machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a banding machine that binds, using a tape, a material to be bound (also referred to as an article) in which a large number of bills, sheets, envelopes, and the like are stacked.

[0002]

2. Description of the Related Art As shown in FIGS.
A pair of arms 2 and 3 project upward from both sides of the rectangular parallelepiped main body 1, and the protruding ends of the arms are connected by a connecting portion 4 and surrounded by the main body 1, the arms 2 and 3 and the connecting portion 4. A rectangular through hole 5 is formed. The main body 1 accommodates a delivery / bundling roller 6, an auxiliary roller 7, a movable holding member 8, a receiving plate 9, a holding plate 10, and the like.

[0003] On a table 13 forming the upper surface of the main body 1, a passage groove 15 for sending and pulling out a tape 14 is formed between the arms 2 and 3. A passage groove 16 is also formed in the connecting portion 4 so as to overlap with the passage groove 15.
An opening 17 is formed in the upper surface of the connecting portion 4 so as to communicate with the passage groove 16 so that a part of the tape 14 can protrude upward.
A passage groove 18 is formed on the inner surface of the arm 3 in communication with the passage grooves 15 and 16. A pair of guide plates 20 and 21 extend upward from a front edge and a rear edge on the left end side of the passage groove 15 of the table 13, and are connected to the bottom surface of the connection portion 4. The guide plates 20 and 21 form a passage groove 19 for the tape 14. A loop-shaped tape guide 50 is configured by the above-described passage grooves 15, 16, 18, and 19.

[0004] A tape guide 24 is rotatably held in the vicinity of the sending / bundling roller 6 for sending and pulling back the tape 14. The tape guide 24 is rotated according to the attitude angle of the tape 14. The rotation direction of the delivery / bundling roller 6 is reversed between the time of tape delivery and the time of bundling. As shown in FIG. 15, the tape guide 24 has a rectangular through hole 25,
An upper plate 27 and a lower plate 28 each having a rectangular shape 26 are arranged in close proximity to each other, and a plurality of claws 27 a protruding from both side edges of the upper plate 27 are bent downward to form the lower plate 28. It is fixed to both side edges. An inverted L-shaped position detection arm 29 protrudes from one side edge of the upper plate 27, and a position detection sensor 30 such as a photosensor or a microswitch is disposed at the protruding end.

A mounting plate 33 protrudes upward from the periphery of the through hole 25 of the upper plate, and the mounting hole of the mounting plate 33 is engaged with the rotating shaft 7a of the auxiliary roller 7 and is rotatably supported. Upper plate 27
The tape 14 is passed through the gap between the tape 14 and the lower plate 28. A part of the peripheral surface of the sending / bundling roller 6 and the auxiliary roller 7 which oppose each other protrudes into the through holes 25 and 26 of the lower plate and the upper plate, respectively, and the tape 14 is sandwiched between the peripheral surfaces. You.

The tape guide 24 is rotatable in accordance with the attitude angle of the tape 14 which is led out to the object 35 to be bound from a position where the sending / bundling roller 6 and the auxiliary roller 7 sandwich the tape 14. FIG. 16 shows each operation process of the conventional strapping machine.
A, B and C and FIGS. 17A, B and C. In FIG. 17C, after moving the binding object 35 having been strapped from the table 13 to another place, the receiving plate 9 is advanced to the original position, the next binding object 35 is set on the table 13, and the process is started. By pressing the button or automatically starting, the tape 14 is sent out by rotating the sending / bundling roller 6 as shown in FIG. 16A so that the leading end of the tape 14 reaches near the far end of the receiving plate 9 (referred to as sizing). At the same time, the moving clamp 8 (the tape 14 is sandwiched between the clamping members 8a and 8b so as to pass freely) is rotated once to feed the tape 14 onto the table 13 to form a loop.

While the feeding of the tape 14 is continued, the holding plate 10 is raised, and the leading end of the tape 14 is held between the holding plate 10 and the receiving plate 9 (FIG. 16B). The moving holding tool 8 is retracted from the tape 14, the sending / bundling roller 6 is reversed, and the tape 14 is pulled back. The tape is stretched linearly, the tape guide 24 is rotated by the tape 14 in the same direction as the tape 14, and the tip of the position detection arm 29 enters deep into the concave portion of the position detection sensor 30, whereby the position detection sensor 30 Is the tape guide 24
Is detected (FIG. 16C).

The pressure plate 37 and the heater 38 (supported by the support member 39) are raised, and the tape 14 is heated and welded while the start and end doors of the tape 14 are overlapped with the receiving plate 9. At the same time, the movable holding tool 8 which has been retracted is advanced to hold the tape 14 (17A). After slightly raising the cutter 40 attached to the support member 39 and cutting the end of the end portion of the tape 14, the cutter 40 is returned to the original position, and the holding plate 10 is returned to the original position (the position shown in FIG. 16A). ) (FIG. 17B).

After welding the tape 14, the pressing plate 3
After returning the heater 7, the heater 38, and the cutter 40 to their original positions (positions in FIG. 10A), the receiving plate 9 is retracted from between the tape 14 and the material 35 to be bound, and the banding operation is completed (FIG. 17C). . Note that the movable holding tool 8 only moves forward and backward and rotates at a predetermined position, and does not move vertically.

[0010]

Recently, there has been a demand from various fields for the development of a device having a high processing efficiency capable of greatly reducing the time required for banding per article as compared with the prior art. The present invention addresses such a need.

[0011]

According to the first aspect of the present invention, a tape lift mechanism is provided, and after the receiving plate is retracted after the tape is welded, the tape at the portion where the receiving plate has come off is removed by the tape lifting mechanism. , And the receiving plate and the tape stopper for stopping the leading end of the tape can return to the lower side of the lifted tape.

(2) In the invention according to claim 2, (1)
In, the tape lift mechanism has a pair or a plurality of pairs of tapered surfaces inclined in opposite directions with respect to the receiving plate, and when lifting the tape, the tapered surfaces of each pair are mutually moved in the advancing / retreating direction of the receiving plate. It moves in parallel and presses both sides of the tape simultaneously from the left and right. (3) In the invention according to claim 3, in the above (2), the tape guide is arranged so that each groove of the pair of (cross-section) U-shaped guides faces each other, and the interval between the U-shaped guides is close to each other. The tape lift surface of the tape lift mechanism is attached to the pair of U-shaped guides so as to face each other.

[0013]

DESCRIPTION OF THE PREFERRED EMBODIMENTS [1] Regarding the improvement of the processing capacity of the strapping machine, after welding and cutting the tape 14 binding the articles 35, the receiving plate 9 must first be removed in order to remove the bound articles 35. It must be retracted and removed from between the article 35 and the tape 14. Further, in order to set the next item, it is necessary to move the receding receiving plate 9 forward, return it to its original position, and then set the item on the receiving plate 9. In the conventional processing steps, each step is performed in series in the following order: retreat of the receiving plate → removal of bound articles → advancement of the receiving plate → setting of the next item → formation of a loop. Of these, removal of the bound article and setting of the next article are performed manually. Although it depends on the level of proficiency in banding work, it is possible for an ordinary person to take the time to remove a bound item and set the next item in the entire time of banding one item. Account for a certain percentage. In addition, it is not possible to proceed to the next receiving plate advancing step until the article is removed, or to enter the next loop forming step until the next article is set.

Therefore, in the present invention, by providing the tape lift mechanism 100 to enhance the processing capability of the apparatus, even if the removal of the bound articles is not completed, the receiving plate 9
The receiving plate 9 can be advanced and the next loop can be formed even if the removal of the article or the setting of the next article is not completed. In other words, the removal of the article 35 and the advance of the receiving plate 9 (and the formation of the next loop), or the setting of the next article and the formation of the next loop can be performed in parallel.

[2] Structure of the Embodiment FIG. 2 shows a front view of the strapping machine of the present invention. FIG. 1 shows a principle perspective view of the tape lift mechanism 100 shown in FIG.
1 and 2, the same reference numerals are given to portions corresponding to FIGS. 50 is an openable tape guide (cross section)
The U-shaped guides 51 and 52 are extended in a loop shape with the grooves facing each other. The tape guide opening / closing mechanism 53 controls the opening / closing of the openable / closable tape guide 50.
, A main cam driven bearing 62, a first plate cam 63 having the main cam driven bearing 62 rotatably attached to one end thereof, and a first plate cam 63
And a second plate cam 65 connected to the upper end of the second plate cam by a wire 64, and a plate cam driven bearing 67 rotatably attached to the U-shaped guides 51 and 52 by engaging with the first and second plate cams. ,
First and second plate cams 63 and 65 Returned coil spring 66
Etc.

When the main cam driven bearing 62 is lowered by rotating the main cam 61, the first plate cam 63 moves downward, the wire 64 attached thereto is pulled, and the second plate cam 65 is interlocked. And move upward. First,
The second plate cams 63 and 65 separate the pair of opposed plate cam driven bearings 67 from each other, and open / close the tape guide 50 left and right.

To close the openable / closable tape guide 50, the main cam 61 is rotated and the main cam driven bearing 62 is moved to the first position.
It is pulled by the coil spring 66 together with the plate cam 63 so as to rise. The second plate cam 65 descends in conjunction with the first plate cam 63. Since the U-shaped guides 51 and 52 are biased toward each other by a coil spring (not shown),
The facing distance between the plate cam driven bearings 67 is reduced, and the openable / closable tape guide is closed.

At the outer ends of the lower horizontal portions of the U-shaped guides 51 and 52, inclined fittings 54 to 57 are fixed by screws, for example. These inclined metal fittings 54 to 57, the open / close tape guide 50, and the tape guide opening / closing mechanism 53 constitute a tape lift mechanism 100. The inclined metal fittings 54 to 57 have tapered surfaces S inclined with respect to the receiving plate 9.

[3] Banding Operation Steps The operation steps of the banding machine of the present invention will be described in order. (1) The receiving plate 9, the tape stopper 80 (see FIG. 3), and the tape guide 50 are set to the initial state. That is, the receiving plate 9
The tape stopper 80 is in the advanced position, and the tape guide 50 is in the closed position.

(2) As shown in FIG. 3, the article 35 is set on the receiving plate 9 in parallel with the formation of the loop. Tape 1
When the leading end of the tape 14 contacts the tape stopper 80 along the tape guide 50, the formation of the loop is completed. (3) As shown in FIG. 4, the tape stopper 80 is retracted, the tape guide 50 is opened, and the tape 14 is removed from the grooves on both side edges of the tape guide 50.

(4) As shown in FIG. 5, the first holding metal member 81 is raised, the tape 14 is sandwiched and held between the receiving plate 9 and the first holding metal member 81, and the sending / bundling roller is rotated.
The tape 14 is pulled back, and the tape 14 is brought into close contact with the article 35. (5) As shown in FIG. 6, the second holding metal member 82 is raised, and the two-layer tape 14 wound around the article 35 is pressed and held between the receiving plate 9 and the second holding metal member 82, and is welded from the pressed position. After the cutter 83 is raised and cut, leaving the portion 14a, the cutter 83 is lowered.

(6) As shown in FIG. 7, the heater 84 is raised, and two tapes are sandwiched between the receiving plate 9 and the heater 84.
Weld the tape. (7) As shown in FIG. 8, when the welding is completed, the heater 84 and the first and second metal fittings 81 and 82 are lowered. (8) To take out the article, the receiving plate 9 is retracted as shown in FIG. If the receiving plate 9 is retracted, the article may be taken out at any time.

(9) As shown in FIG. 10, the tape guides opened to the left and right are closed to feed the next tape.
If there is still an item when the guide is closed, the tape-wound portion of the tape receiving plate 9 that has been wound around the item is the inclined bracket 56,5.
7 (and 54, 55). (10) As shown in FIG. 11, the receiving plate 9 and the tape stopper 80 are advanced. At this time, even if there is still an article, since the tape on the bottom side of the article has been lifted at (9), the receiving plate 9 is arranged below the tape.

Conventionally, the tape 14 wound around an article 35
If the receiving plate 9 is advanced, if the receiving plate 9 is moved forward, the tape 14 may be reinserted or the shape of the tape 14 may be deformed. If so, a trouble such as damage to the tape 14 is caused. Therefore, the receiving plate 9 could not be advanced until the bound articles 35 were removed.

(11) As shown in FIG. 12, even if there is still a tied article 35 on the receiving plate 9, the article 35 is being removed, or the next article 35 is being set. When the tape 14 is sent out irrespective of the articles 35, the leading end of the tape 14 passes through the groove of the tape guide 50 and hits the tape stopper 80, and a loop is formed.
Since the same state as described above is obtained, the next banding can be performed.

[0026]

As described above, in the present invention, since the tape lift mechanism 100 is provided, if the receiving plate 9 retreats after the binding, the tape guide 50 is closed and the parallel with the removal of the bound articles 35, If there is an article 35, the tape 14 at the bottom can be lifted, and the receiving plate 9 and the tape stopper 80 can be advanced to form the next loop.

If the receiving plate 9 and the tape stopper 80 are advanced and the previous item has been removed, the next loop can be formed in parallel with the setting of the next item. in this way,
According to the present invention, the operation such as the formation of the next loop can be performed in parallel with the taking out of the tied article and the setting of the next article, which take a relatively long time, so that the time required for banding can be shortened accordingly.

[Brief description of the drawings]

FIG. 1A is a perspective view showing the principle of a tape lift mechanism according to an embodiment of the present invention, FIG. 1B is a left side view of A, and FIG.

FIG. 2 is a front view of the strapping machine of the present invention.

3A and 3B are views for explaining a loop forming step of the embodiment of FIG. 1, wherein A is a perspective view, B is a sectional view taken along aa 'of A, and C is a front view.

4A and 4B are views for explaining an opening operation process of the tape guide of the embodiment of FIG. 1, wherein A is a perspective view, B is a cross-sectional view, and C is a front view.

5A and 5B are views for explaining a tape pull-back and adhesion process of the embodiment of FIG. 1, where A is a perspective view and B is a front view.

FIG. 6 is a front view for explaining a tape cutting step of the embodiment of FIG. 1;

FIG. 7 is a front view for explaining the tape welding step of the embodiment of FIG. 1;

FIG. 8 is a front view for explaining a retracting step of the heater and the holding fitting after the tape welding of the embodiment of FIG. 1;

9A and 9B are views for explaining a retreating step of the receiving plate 9 of the embodiment of FIG. 1, wherein A is a perspective view, B is a front view, and C is a cross-sectional view.

FIGS. 10A and 10B are views for explaining a tape lift process of the embodiment of FIG. 1, wherein A is a perspective view, B is a front view, and C is a cross-sectional view.

FIGS. 11A and 11B are views for explaining a step of advancing the receiving plate and the tape stopper of the embodiment of FIG. 1, wherein A is a perspective view, B is a cross-sectional view, and C is a front view.

FIG. 12 is a view for explaining the next loop forming step in the embodiment of FIG. 1;

13A and 13B are a plan view and a front view of a conventional strapping machine, respectively.

FIG. 14 is a side view of the strapping machine of FIG. 13;

FIG. 15 is an enlarged perspective view showing the delivery / bundling roller 6 of FIG. 13;

FIG. 16 is a view showing the first half operation steps of the strapping machine of FIG. 13;

FIG. 17 is a diagram showing an operation process in the latter half of the banding machine in FIG. 13;

────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-7-300109 (JP, A) JP-A-8-2506 (JP, A) (58) Fields investigated (Int. Cl. ⁷ , DB name) B65B 13/18 B65B 13/32

Claims (3)

(57) [Claims] 1. A receiving plate is disposed so as to be able to advance and retreat so as to be able to cross at right angles with a loop-shaped tape guide, and to place an object to be tied on the receiving plate and to feed out the tape along the tape guide. Forming a tape loop around the object to be tied and the receiving plate, bringing the tape into close contact with the object to be tied and the receiving plate, sandwiching the start end and the rear end of the tape between the heater and the receiving plate, and welding. In a strapping machine that retracts the receiving plate to take out the strapped binding object, a tape lift mechanism is provided, and after the tape is welded, the receiving plate is retracted, and A stripping machine wherein the tape lifted by the tape lift mechanism lifts off the tape from the detached portion, and the receiving plate and the tape stopper for stopping the leading end of the tape can be returned below the lifted tape. 2. The tape lift mechanism according to claim 1, wherein the tape lift mechanism has one or a plurality of pairs of tapered surfaces inclined in opposite directions to the receiving plate. A banding machine characterized in that the surfaces move parallel to each other in the advancing and retreating direction of the receiving plate to simultaneously press both side edges of the tape from the left and right. 3. The tape guide according to claim 2, wherein the tape guides are arranged such that respective grooves of a pair of (cross-section) U-shaped guides face each other, and the intervals between the U-shaped guides can be close to or separated from each other. A strapping machine wherein the tapered surface of the tape lift mechanism is attached to the pair of U-shaped guides so as to face each other.