JPS6034310A - Banding device - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a binding device for wrapping objects to be bound with a binding adhesive tape.

(Prior art) A binding arm is pivotally mounted on a base so that it can be raised and lowered, and the adhesive tape pulled out from a tape reel is provided so as to rotate freely once, and the adhesive tape is wound around the object by the tilting movement of the binding arm, and the winding is performed. The pressure receiving means of the end piece tape holding mechanism and the crimping means of the binding arm hold the tape, and the tape on the tape side to be pulled out is held between the swinging tape holding means of the tape holding mechanism and the suppressing means of the binding arm, and the tape is held at these two locations. A binding device is already known in which a cutting means attached to a binding arm cuts the adhesive tape held between the binding arms.

By the way, in the conventional binding device ii, cutting is started when the adhesive tape held between the two points is positioned horizontally, but in this state, cutting is performed at the shortest length. Then, the adhesive tape comes into contact with the swinging tape holding means of the adhesive tape holding mechanism of the adhesive tape.

Since it is pressed by the restraining means of the binding arm, it becomes sticky, and in order for the binding arm to descend again from the cutting start position, the clamping position between the swinging tape holding means of the tape holding mechanism and the restraining means of the binding arm must be lowered. When the adhesive tape is peeled off from the previous adhesive point and the gap between the two clamped points has to be widened, the adhesion of the adhesive tape to the swinging tape holding means is quite strong, and when the adhesive tape is pulled out, Lowering the binding arm is difficult and may result in an inability to work.

(Objective of the Invention) The present invention is intended to solve the conventional problems, and utilizes the fact that the length of the adhesive tape held at two places is different between the places where the held adhesive tape is held. In other words, the present invention provides a binding device that can perform smooth binding and cutting operations by cutting the adhesive tape when the length of the tape is shorter than the minimum length. be.

(Structure of the Invention) In a binding device using adhesive tape, the present invention provides a portion where the pressure receiving means of the tape holding mechanism and the crimping means of the binding arm are clamped together, a swinging tape holding means of the tape holding mechanism and the binding arm. It is characterized in that the cutting blade is set so that it comes into contact with the tape when the length of the tape stretched between the part held by the suppressing means is less than the minimum length, and this As a result, in the process after the adhesive tape starts cutting, the clamping interval is shortened, and during this period there is no movement to peel the adhesive tape from the sticky oscillating tape holding means, so the lowering of the binding arm There is nothing that gets in the way, and it operates extremely smoothly.

(Example) The present invention will be explained in detail with reference to FIGS. 1 to 3.

Reference numeral 1 denotes a base, a tape rewinding mechanism 2 is provided at the right end of the base 1, and a KFi tape holding mechanism 3 is provided at the left end of the base 1. A mounting table 5 is provided between the tape rewinding mechanism 2 and the tape holding mechanism 3 on which objects to be bound 4 are placed. The base 1 has a binding arm 6 on the side closer to the unwinding mechanism 2 that can be raised and lowered with respect to the base 1.
is pivotally attached to the binding arm 6, and a tape crimping cutter #i mechanism 7 is provided at the arm end of the binding arm 6. By tilting and moving the tape crimping and cutting mechanism 7Fi and the binding arm 6, it cooperates with the tape holding mechanism 3 to press the ends of both windings of the binding tape 8 wound around the object 4 to be bound together. It also has a cutting function.

Each of the above mechanisms 2.7.3 will be explained in detail below.

(1) Regarding the structure of the tape measuring mechanism 2: 9 is a support frame, a tape reel 10 is rotatably supported on the support frame 9 by a reel support shaft 11, and an adhesive tape 8 is mounted on the tape reel 10. It is installed. Support frame? The iC is provided with a binding arm 6 that is movable up and down using a binding arm support shaft 12 as a fulcrum. 1511m is a spring that biases the binding arm 6 in the upright direction; 14.15 is a bottle for suspending the spring 13; pin 14#i is attached to the binding arm 6; the bottle 15 is attached to the support frame 9; ing. 15a
The locking hole 7'CI6, which locks the pin 15, is a guide hole that guides the pin 14, and both holes 15a, 16
is provided on the support frame 9.

17ij is a sector gear; 18 is an intermediate small gear meshingly connected to the sector gear 17; 19 is an intermediate large gear that rotates following the intermediate small gear 18; 20 is fixed on the reel support shaft 11; Gears 2DK are gears that interlock and rotate,
The tape reel 10#'i is rotated in the tape rewinding direction by rotating each gear in conjunction with the tilting of the binding arm. Guide rollers 21 and 22 are provided on the binding arm, and the tape 8 is guided by the guide rollers 2'l and 22 and extends toward the tape crimping and cutting mechanism 7. Note that the guide rollers 21 and 22 are not necessarily configured to be attached to the binding arm 6.

(g) Regarding the configuration of the tape crimping and cutting mechanism 7 = 23 is a gap crushing rod, this gap crushing rod 23 &:l is spring-biased by a compression coil spring 24, and its tip protrudes from the binding arm 6. This gap crushing rod 25i;i
Tape 8 wrapped around the object to be bound 4 and the object to be bound 4
It has the function of crushing the gap that occurs near the ends of both windings. 2
5 is a crimp rod, and the crimp rod is a 25Fi compression coil spring 2.
6 is spring biased. The crimping rod 251 has a function of compressing both ends of the tape 8 wrapped around the object 4 on a pressure receiving table 50, which will be described later. Reference numeral 27 denotes a cutting blade, and this cutting blade 27 is removably attached to a cutting blade attachment 28. This is a 29tt rocking plate, which will be described later. Cutting W [The blade 27 is the swing plate 2
By swinging 9 to the left in FIG. 1, replacement can be easily performed using a tool such as pliers (not shown). Reference numeral 30 denotes a swing shaft serving as a swing fulcrum of the swing plate 29, and is fixed to the binding arm 6. The swing plate 29Fi has an abbreviated shape, and a pressure roll 31 is attached to its swing end.

The swing plate 29 is provided with an engaging portion 29a, and the engaging portion 29m contacts the locking pin 33 to restrict counterclockwise swinging. When the binding arm 6 is tilted, the suppression roll 61 has a function of clamping the tape 8 in cooperation with a swinging tape holding row 243 (to be described later), and a function of holding the tape 8 by the swinging tape holding and holding row 243. Th has a function of separating from the tape holding surface 46, which will be described later.

The swing shaft 30 is provided with an auxiliary swing plate 64 . A shaft 35 is fixed to the auxiliary rocking plate 64, and a tape pressing auxiliary roller 36 is rotatably provided on the shaft 35. The auxiliary rocking plate 34 is always spring-biased counterclockwise by a torsion coil spring 37 with the rocking shaft 30 as a fulcrum. Rotation in the clockwise direction has been stopped. Tape presser auxiliary roller! +6 not only has the function of guiding the tape 8 toward the tape holding mechanism 3, but also cooperates with the suppression roll 61 to guide the tape 8 toward the swinging tape holding row 54 when the binding arm 6 is tilted. By bringing the swinging tape holding roller 43 into close contact with the outer peripheral surface of the swinging tape holding roller 43, the swinging tape holding roller 4
It has a function of smoothing the sliding rotation of the press roll 31 that rolls relative to the roll 3. Furthermore, the pressure roll 3
It also has the function of assisting the clamping of the binding tape 8 between the tape holding roller 1 and the swinging tape holding roller 43.

(iii) Regarding the configuration of the tape holding mechanism 3: 38a
, 38b is an outer plate, and this outer plate 5Ba, 3
A swing plate 39 is provided between the swing plates 8b and 8b, and the swing plate 39 is pivotally supported by a swing shaft 40 and biased clockwise by a torsion coil spring 41. Upper part Vci of swing plate 39
i. A rotating shaft 42 is provided, and a swinging tape holding row 243 is provided on this rotating shaft 42 so as to be rotatable only in a clockwise direction. 44 is a stopper for preventing the reversal of the swinging tape holding roller 45; 45ii is a ratchet that is provided protruding from the swinging tape holding roller 43 and engages with the stopper 44;

#'i, eight cut ends of the tape 8 are present between the swinging tape holding roller 43 and the tape holding surface 46. The suppression roll s1 always rolls on the outer periphery of the swinging tape holding roller 43 on the pressure receiving table 5o side (on the right side in FIG. 1) with the straight line connecting the center of the rotating shaft 42 and the center of the swinging shaft 40 as the border. On the other hand, the tape presser auxiliary row 256 is opposite to the pressing roll 31 and is attached to the pressure receiving table 5 with the straight line as a boundary.
The oscillating tape holding roller 43 is configured to roll on the outer surface of the swinging tape holding roller 43 on the side farther from the point o.

47 is a tape push-up lever; 48 is a locking bottle; a tension coil spring 49 is stretched between the lower end of the tape push-up lever 47 and the lock bottle 48; 47# is always biased downward by a spring. The lower end surface of the tape push-up rod 47 is connected to the swing plate 3 mentioned above.
It faces an L-shaped horizontal upper surface 39a at the bottom of 9 with a predetermined distance therebetween. The upper end surface of the rod 47 projects slightly upward from the upper surface of the tape holding surface 46.

Of course, the lower end surface of the tape push-up rod 47 may be brought into contact with the horizontal upper surface 59a vc of the lower part of the swing plate 39. In this way, the tape push-up rod 47 is used to move the binding arm 6 up and down. The upper end of the tape pushing rod 47 comes into contact with the tape 8 and generates tension on the tape 8, and the tape 8 is cut by the cutting blade 27. It has the function of assisting cutting work. That is, when the binding arm 6 is pushed down, the pressing roll 31 provided on the binding arm 6 comes into contact with the swinging tape holding row 24 through the tape 8.
3 rolls on the outer periphery toward the tape holding surface 46, and at the same time, the entire swinging plate 39 swings to the left of the pressure roll 31, and as a result, the swinging tape holding roller 43 moves toward the tape holding surface 46. While separating from 46, the tension coil spring 4
The tape push-up rod 47, which is always spring-biased downward by the tension coil spring 4 via the horizontal upper surface 39a,
It protrudes upward against the panel 9 to create tension in the tape 8. In this embodiment, an oscillating tape holding roller that rotates in one direction is used as the oscillating tape holding means, but if the suppression roll of the binding arm swings outward, it may be a non-rotating roll or a tapered roller. Of course, a member having a surface can also be used.

The upper surface of the pressure-receiving table 50 is slightly higher than the upper surface of the tape holding surface 46 and the upper end surface of the Cheebe pusher rod 47 described above. The pressure receiving table 5oFi binding arm 6 has a function of cooperating with the companion crimping rod 25 to crimp the ends of both winding ends wound around the object 4 to be bound together. 51 is a leaf protection board,
Here, two plates are arranged side by side on both sides with an interval equal to the width of the tape 8.

The interval can be adjusted according to the standard of the tape 8. This leaf shield plate 51#'i has a function of preventing the leaves of vegetables, etc., which are the object 4 to be bound, from being damaged during binding.

In addition, there is a tape cut end locking member that temporarily locks the newly cut end of the tape 8 wound around the 52#1 broken bundle 4, and in this embodiment, it is a tape push-up rod. 47 pushes up the tape 8 from the lower side of the tape 8 toward the cutting blade 27 side, so that the cut end of the tape 8 sticks to the blade surface of the cutting blade 27 and is held, especially when adhesive tape is used. Therefore, it does not necessarily have to be provided. In particular, in the present invention, the binding tape 8 is held between the fastening rod 25, the pressure receiving base 5, the pressing roll 51, and the tape holding row 243, respectively.
The positions of the three locations are adjusted so that the cutting blade 27 cuts the binding tape 8 before it becomes horizontal.

(Function) First, the object to be bound 4 is pushed in the direction of arrow A in FIG. The provided binding tape 4 is pushed in and placed on the mounting table 5. At this time, the tape reel 10 rotates and the tape 8 is pulled out. After the objects 4 to be bound are placed on the mounting table 5, the binding arms 6 are tilted about the binding arm support shafts 12. The slack in the tape 8 that occurs at this time is compensated for by the binding arm 6 as described above.
The tape 8 is moved by the tape reel 10 in relation to the tilting movement of the tape 8
The tape aFi is rapidly rewound and wrapped around the object to be bound 4 while maintaining the tensioned state of the tape aFi.

Then, as the binding arm 6 tilts and moves.

First, as shown in FIG.
While crushing the gap that occurs near both ends of the tape 8,
The fastening rod 25 and the pressure receiving table 50 work together to press the ends of both winding openings together. On the other hand, the pressure roll 31 is first placed on the outer periphery of the swinging tape holding roller 43 via the tape 8. come into contact with In other words, the tape 8 is held in cooperation with the pressure roll 31 and the swinging tape holding roller 43.

Then, when the binding arm 6 is further tilted and moved from the state in which the pressing roll 61 is in contact with the outer periphery of the swinging tape holding roller 43 for the first time, the pressing roll 31 touches the swinging tape holding roller through the tape 8. 43 toward the tape holding surface 46 side.

In this case, the pressure roll 31 rolls while rotating clockwise about the shaft 61, so that the tape 8 that is passed between the pressure roll 31 and the fastening rod 25 is placed on the left side, that is,
The tape 8Fi is pulled toward the tape presser auxiliary row 236 with an appropriate force, and the tape 8Fi gradually gains tension. On the other hand.

At the same time, the entire swinging plate 59 swings around the swinging shaft 40 in the counterclockwise direction 1 due to the reaction from the suppression roll 31, so that the swinging tape holding roller 43 separates from the tape holding surface 46. .

It should be noted that as the swinging tape holding roller 43 moves away from the tape holding surface 46, the spring force of the torsion coil spring 41 increases, so the clamping force of the tape 8 between the swinging tape holding roller 46 and the pressing roll 61 also increases. It will increase moderately.

In addition, as the entire swing plate 39 swings counterclockwise about the swing shaft 40, the tape push-up rod 4, which is constantly biased downward by the tension coil spring 49,
7 protrudes upward through the horizontal upper surface 59a of the lower part of the swing plate 39 against the spring force of the tension coil spring 49, and the upper end of the tape push-up rod 47 begins to approach the tape 8 from below. In this case, the lower end surface of the tape push-up rod 47 and the swing plate 59
Since there was a predetermined distance between the horizontal upper surface 59a and the lower horizontal upper surface 59a, the sequence is that after the tape 8 is released from being held by the swinging tape holding roller 43 and the tape holding surface 46, the tape pushing rod is moved. 47 comes to protrude upward.

Thereafter, when the pressure roll 51 rolls a predetermined distance on the outer periphery of the swinging tape holding roller 43, the tape pressing auxiliary roller 36 first contacts the outer periphery of the swinging tape holding roller 43 via the IF tape 8. Figure 4). Therefore, the tape 8 is brought into close contact with the outer peripheral surface of the swinging tape holding roller 45 between the pressure roll 31 and the tape presser auxiliary roller 36. In the meantime, the gap crushing rod 23 is used to crush the gap that occurs near the four ends of both volumes of the binding tape 8, and the fixing rod 25
The pressing of both winding ends of the tape 8 by the pressure receiving table 50 is completed, and then the tape 8 is cut.

At the time of cutting, the tape is set so that the portion held between the suppression roll 31 and the tape holding roller 43 is higher than the portion held between the fastening rod 25 and the pressure receiving table 50, as shown in FIG. has been done. To explain this in detail with reference to FIG. 6, the cutting position is at a position (fllKt) held by the pressure roll 31 centered at a and the tape holding roller 43 centered at This is for the tape between the position and the position where it is held.

(7) Sequentially, the pressure roll 31 centered at 2 and C, the tape holding roller 43 centered at C, and the pressure roll 31 centered at The clamping position changes to 3. As a result, the length of the tape between the clamps also changes to 11> lz < Ig
and changes.

The adhesive side of the tape faces the tape holding roller 43,
And because it is pressed by the suppression roll 31.

It is easy to go from 1 to the state Im, but it is difficult to go from l to 13. In the conventional method of cutting at 1 digit, the device may not work. In the present invention, since the tape is cut at 12 or earlier, there is sufficient time for the suppression roll 31 to descend, and smooth tilting movement of the binding arm is achieved. is allowed.

Then, the tape is cut by the 8Fi cutting blade 27 while an additional tension of 1ifJ is applied by the tape push-up rod 47. FIG. 5 shows the state immediately after the tape 8 is cut, that is, immediately before the tilting operation of the binding arm 6 is completed.

As is clear from FIG. 5, in this state, the height of the center of the suppression roll 31 is located at almost the same height as the upper surface of the tape holding surface 46, and the swinging tape holding roller 4B
For K, it is located at a height slightly above the center. Further, the center of the tape pressing auxiliary roller 36 is located slightly to the left of the extension line of the line connecting the center of the swinging tape holding roller 46 and the center of the swinging shaft 40 fff. The left side portion 8Bf of the newly cut end of the tape 8 is held together by the tape pressing roller 62 and the swinging tape holding roller 43, and its tip is slightly higher than the center height of the tape holding roller 43 at the tip of the holding roller 62. hanging in a downward position. Also.

Both winding end ends of the binding tape 8 wound around the object to be bound 4 are connected to the tape cutting end locking member 52 by the tape push-up rod 47.
It is temporarily held and never held again.

After that, when the binding arm 6 is erected as before, the opposite effect to that of the "two-in-a-row" is performed. That is,
The pressing roll 31 rolls upward on the outer periphery of the swinging tape holding roller 43 via the tape 8 to the side opposite to the tape holding surface 43, contrary to the tilting movement of the binding arm 6. On the other hand, at the same time, the entire rocking plate 59 is rockingly displaced clockwise around the rocking shaft 40 as the reaction force received from the suppression roll 31 gradually becomes smaller. As the tape holding roller 43 approaches the tape holding surface 46, the tape push-up rod 47 moves downward, and then the tape 8
One of the newly cut ends is again clamped by the swinging tape holding roller 45 and the tape holding surface 46 in cooperation with each other, and the tape pushing rod returns to its original lowest position. The state at this time is the same as the state shown in FIG. however,
Tape 8 is of course in a different state. In addition, in the process in which the tape presser roller 52 rolls upward on the outer circumference of the swinging tape holding roller 43, the tape presser auxiliary roller 2
Since the tape 8 is brought into close contact with the outer peripheral surface of the swinging tape holding roller 43 in cooperation with the tape holding roller 36, the suppression roll 31 rolls smoothly without any hindrance to its movement. Here, the tape presser auxiliary row "ys6 separates from the swinging tape holding roller 43 earlier than the pressure roll 31, but its position is near the position where the pressure roll 31 separates from the swinging tape holding roller 46. , the rolling of the suppression roll 31 is hardly hindered, and problems such as wrinkles of the tape 8 do not occur.

After that, the swinging tape holding roller 43 moves the tape 8
comes into elastic contact with the tape holding surface 46 via the new cut end of
After a slight delay, the press roll 31 separates from the swinging tape holding roller 43 and after fc, the binding arm 6 stops rising and returns to the standing state as shown in FIG. 1. Now, by taking out the objects 4 wound around the tape 8, it becomes possible to prepare for the subsequent binding work of the objects 4 to be bound. By repeating the above-described operations in this manner, the objects to be bound 4 can be smoothly bound repeatedly.

(Effects) Since the present invention has the above-described configuration, an extremely smooth operating state can be obtained by adjusting the position of the cutting blade and the position of the adhesive tape at two places. 1. The efficiency of one task can be improved.

[Brief explanation of the drawing]

FIG. 1 is a side view of the present invention, and FIG. 2 is a front view thereof. FIGS. 3 to 5 are enlarged side views of essential parts of the present invention, each showing the operation sequence. FIG. 6 is a diagram explaining the principle of the present invention. 1... Base, 6... Binding arm 10... Tape reel, 8... Adhesive tape 3...
Tape retention mechanism. 50... Pressure receiving means, 25... Crimping means 43...
Swinging tape holding means, 31... suppressing means. 1 other person Figure 5 16 Figure 73

Claims (1)

[Claims] A binding arm is pivotally mounted on a base so that it can be raised and lowered, and an adhesive tape pulled out from a rotatably provided tape reel is wound around an object to be bound by the tilting movement of the binding arm, and the wound end is held by the tape. The pressure-receiving means of the mechanism and the crimping means of the binding arm hold the adhesive tape, and the adhesive tape on the tape side to be pulled out is held between the swinging tape holding means of the tape holding mechanism and the suppressing means of the binding arm, and the In a binding device provided to cut the adhesive tape with a cutting means attached to a binding arm, the tape is clamped by the pressure receiving means of the tape holding mechanism and the crimping means of the binding arm, and the swinging tape of the tape holding mechanism is provided. The cutting blade is set so that the cutting blade comes into contact with the tape when the length of the tape stretched between the holding means and the part of the binding arm held by the suppressing means is less than the minimum length. Binding device with percentage characteristics.