JPS6226330Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field The present invention relates to an improvement in a band-wrapping machine that wraps articles with tape and presses the tapes together.

Conventional technology Conventionally, this type of banding machine was used, for example, in the
It is disclosed in Publication No. 34391. That is, in the conventional device, as shown in FIG. 8, an arm b is rotated about a support shaft a, and a crimping portion c at the tip of the arm is pressed against a pressing portion d below the arm b. When banding, the item is fed onto the table f so as to release the tape e stretched between the tip of the arm and the tape presser near the pressing part a', and the tape is applied to the item by lowering the tip of the arm. It was designed to wrap, crimp, and cut the tape.

Problems to be solved by the invention Since the lowering of arm b is a pivoting motion about its fulcrum a, the force of the crimping part at the tip of the arm against the pressing part includes not only a vertical component but also a radial component. Therefore, a mutual sliding force acts between the pressing part and the crimping part, which shortens the life of the heater.
In addition, the tape also required a certain degree of strength.
In addition, in order to reduce the radial force component, it was also proposed to make the contact position of the crimp part of the tip of the arm against the pressing part the same height as the base end of the arm, but this would reduce the work space on the table. It gets smaller, which is not a good thing.

Therefore, the purpose of the present invention is to provide a banding machine with a pivoting arm, which can provide sufficient work space on the table, and also allows the crimping part at the end of the arm to collide with the crimping table (pressing part) using only vertical force. The purpose of the present invention is to provide a band-wrapping machine that obtains the desired results.

Means for Solving Problems The configuration that characterizes the banding machine according to the present invention is that a movable member 8 is provided at the tip of a pivot arm 4, a crimping portion 13 is attached to the movable member, and the tip of the arm is attached to the crimping portion below. It includes a loading mechanism 16 that applies a downward vertical force to the movable member 8 when it reaches the platform 3.

Effect of the above means: When the tape is wrapped around the article and the arm 4 is lowered, the arm 4 and the lever 16 are lowered together, and when the tip of the arm approaches the crimping table 3, the lever 16 is lowered into the arm 4.
The pressing member 23 of the lever 16 pushes the movable member 8 vertically downward. Therefore, the crimping part 13 acts perpendicularly on the crimping table 3 below.

Embodiments Next, embodiments of the present invention will be described with reference to the drawings. The figure shows a preferred embodiment of the band-wrapping machine of the present invention, in which reference numeral 1 is a base which is the main body, a support 2 is provided on one side of the base, and a crimping table 3 is provided on the other side. The banding machine, as shown, is of the pivot arm type and has a generally U-shaped arm 4 whose proximal end 5 is pivoted to a pin 6 by a post 2. The distal end portion 7 of the arm 4 is linear and becomes perpendicular to the surface of the base when lowered, and a movable member 8 is provided thereon in a slidable manner. Further, a reel 9 containing a roll of tape is installed at an appropriate position on the arm 4, and a roller 10 for guiding the tape is provided at a corner near the tip of the arm 4. The tape T is passed from the reel 9 through the roller 10 via the tension bar 11 provided on the reel, through the hole 7 at the tip of the arm, through the movable member 8, and from the tip of the movable member 8 to the crimping table of the base. 3 to a tape presser 12 provided near the tape holder 3. The movable member 8 is provided with a crimping part 13 and a cutter 14 that can abut against the crimping table 3, and as shown in FIG. By being loosely clamped between the members 8 and 8, the member 8 can be slid freely. In addition,
The crimp table 3 has a heater 3a, and the upper surface of the base 1 serves as a table 1a. The crimp portion 13 is configured to be retracted and tensioned in a spring manner.

In addition to the movable member 8, this banding machine includes a lever 16 which is pivoted to the arm 4 by a pin 15 near one end, and one end of the lever 16 is connected to a retainer which is pivoted to the proximal end 5 of the arm by a pin 17. It is configured to engage member 18 and pivot integrally with arm 4 . This holding member 18 has a protruding rod 19 in the center.
The protruding rod passes through a proximal portion of the arm base end 5, and its tip can abut against a backing plate 20 on the support column 2. A spring 21 is provided between the tip of the protruding rod 19 and the penetrating portion of the arm 4, and the holding member 18 always maintains its normal state when the tip does not abut against the backing plate 20. At the other end of the lever 16 is a grip 22;
A pressing member 23 is installed at an appropriate position near the lever 2. As clearly shown in FIG. 4, the pressing members 23 are provided on both sides of the arm 4, and their tips abut against the shaft 8a of the movable member 8. Further, a spring 24 is provided between the movable member 8 and the arm 4, and applies an upward force to the movable member 8, so that the tip of the pressing member 23 is always kept on the movable member 8.
It is configured to come into contact with. Note that the levers 16 may be provided on both sides of the arm 4. In the figure, 2 is an arm return spring, and 27 is an arm stopper pin.

During operation, with the tape T stretched between the tip of the arm 4 and the tape presser 12, the item is fed onto the table 1a so as to let out the tape, and then the grip 22 is pushed down and the arm Pivot 4 downward. When arm 4 is lowered, lever 1
Since one end of the lever 6 is engaged with the holding member 18, the lever 16 and the arm 4 are integrated and move together. When the arm 4 is lowered, the slack in the tape is taken up by a spring connected to the tension bar 11 by pulling the tension bar back.
When the crimping part 13 at the tip of the arm reaches the crimping table 3, the tip of the protruding rod 19 on the holding member 18 abuts against the backing plate 20, as shown in FIG. The arm 4 pivots rearward about the pivot pin 17 as a fulcrum, disengages from the end of the lever 16, and the tip of the arm 4 comes into contact with a corresponding position on the base 1 and stops. By further lowering the grip 22, the lever 16 is moved to its pivot pin 15.
The movable member 8 pivots downward with the fulcrum as a fulcrum, and the movable member 8 is guided by the end portion 7 of the arm and descends via the pressing member 23, and the reciprocating tape wrapped around the item is sandwiched between them in an overlapping manner. The crimping part 13 is pulled in while colliding with the crimping table 3, and the heater 3a provided on the crimping table 3 welds the tapes together, and the cutter 14
Cut the tape. At this time, the tip 25 of the movable member 8 engages with a corresponding position on the base 1, moves the tape presser 12 backward, and releases the end of the tape that has been suppressed. In this case, the force applied by the crimping unit 13 to the crimping table 3 is applied to the lever 1 by the grip 22.
6 and the pressing member 23,
The force is in the vertical direction and does not include the radial force component. Next, the bundled items are removed from the table 1a, the grip 22 is released, and the spring 26 is released.
When the arm 4 is raised, the protruding rod 19 is separated from the backing plate 20, one end of the lever 16 engages the holding member 18 again, and the lever 16 and the arm 4 are integrally pivoted upward together. Furthermore, when the movable member 8 is pulled up by the spring 24 and separated from the corresponding position on the base 1, the tape presser 12 moves forward to hold down the end of the tape, and as the arm 4 rises, the tape is drawn out and returns to the initial state.

In the illustrated embodiment, the movable member 8 is held by the lever 16 and the holding member 18 that engages with one end of the lever 16.
Although a mechanism for applying a vertical force in a downward direction is configured, the mechanism for applying such a force is not limited to the above-mentioned configuration, and it is clear that other configurations can be used. For example, as shown in FIGS. 6 and 7, a dogleg-shaped arm 28 is pivotally fixed to the distal end portion 7 of the arm 4 below the receiving plate 7b of the movable member 8, and one end of the arm The appropriate positions of the plate 7b are connected with the spring 29, and the arm 28
The upper end may come into contact with the lower end of the receiving plate 7b. In this case, the tip of arm 4 descends,
When the lower part of the arm 28 hits the surface of the base 1, it rotates, and the engagement between the arm 28 and the receiving plate 7b is disengaged, and the movable member 8 becomes free, and is pushed vertically downward via the lever 16 and the pressing member 23. It will be done. When the downward force is removed, the movable member 8 is pulled up by the spring 24, and the arm 28 comes into contact with the lower end of the receiving plate 7b again.

Effects of the invention Therefore, according to the invention, the movable member slidably attached to the tip of the arm is provided with a crimp portion, and a load mechanism is provided that applies a downward vertical force to the movable member. Since the crimping part at the end of the arm applies only a vertical force to the crimping table that welds the tapes together, the tapes are welded properly, without shortening the life of the heater, and adding strength to the tape. There is no need for it. Furthermore, since the tape crimping position does not need to be at the same level as the pivot point at the base end of the arm, sufficient work space can be secured.

[Brief explanation of the drawing]

FIG. 1 is a side view of a banding machine according to an example of the present invention;
2 is a partially omitted side view showing the state of the embodiment shown in FIG. 1 during operation, and FIG.
Figure 4 is a view from arrow A in the figure, Figure 4 is a view from arrow B in Figure 1, and Figure 5 is a view from arrow B in Figure 1.
The figures are a sectional view taken along the line C-C in Fig. 4, Fig. 6 is a schematic side view showing another embodiment of the present invention, Fig. 7 is a view taken along arrow D in Fig. 6, and Fig. 8 is a conventional It is a side view of a banding machine. In the figure, 1a...table, 3...crimping table, 4...
... Arm, 5 ... Base end of arm, 8 ... Movable member, 12 ... Tape presser, 13 ... Crimping part, 16
... Lever, 18 ... Holding member, 23 ... Pressing member.

Claims (1)

[Scope of utility model registration request] The item is fed onto the table so as to release the tape stretched between the tip of the arm pivoted at the base end and a tape presser near the crimping table, and the tape is applied to the item by lowering the tip of the arm. A banding machine for wrapping, crimping, and cutting includes a movable member attached to a distal end portion of the arm so as to be slidable downward along the distal end portion when the arm distal end is lowered; a crimping unit that abuts against a crimping table and welds the tapes together; further comprising a load mechanism that applies a downward vertical force to the movable member when the tip of the arm reaches the crimping table; The load mechanism includes a lever pivotally fixed to the arm, a holding member that removably holds an end of the lever, and a pressing member that is attached to the lever and comes into contact with the movable member. A banding machine characterized in that when the tip of the lever reaches the crimping table, the end of the lever is detached from the holding member and becomes pivotable.