JPH0150645B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention mainly relates to improvements in a vegetable binding machine for bundling relatively soft vegetables such as spinach and green onions.

(Prior art) Conventionally, as a binding machine for vegetables and other products using binding tape, for example, Japanese Utility Model Publication No. 56-37922 discloses a method of wrapping tape around the outer circumference of the object to be bound, heat-sealing the end, and using a cutter blade. A tape band device has been proposed that cuts the tape. Furthermore, Japanese Patent Application Laid-Open No. 59-51011 discloses a method in which a continuous binding tape is wound around the outer circumference of an article in a closed loop, the overlapped portions of the tape are clamped and fixed, and then heat-sealed and separated using a tape cutting blade. A new binding machine has been proposed.

(Problem to be Solved by the Invention) However, in the case of such a conventional binding machine, in addition to a heater for heat-sealing the tape, there is also a cutter for cutting off the tape after binding, and the structure is complicated, and the cutter is There is a risk of injury during work.

Further, in the case of such a conventional binding machine, when thermally welding the tape, there is a risk that the tape may shift, resulting in incomplete welding.

(Means for Solving the Problems) In view of such conventional drawbacks, the present inventor has conducted extensive research and has developed a vegetable tying method that eliminates the above-mentioned drawbacks and is capable of automatically performing a practical and hygienic tying operation. The machine was finally completed.

The present invention will be described below with reference to the drawings.

1 and 2 are side views showing an embodiment of the vegetable binding machine of the present invention. 1 and 2, a fixing block 2 is provided near the front of the base 1, and a welding table 3 is attached to the fixing block 2.
is provided, and on the front side of this welding table 3, a drive roll pair 4, which clamps the tip of a binding tape 29, which will be described later, is provided.
5 is mounted on the shaft, and tape guides 6 and 7 are provided so as to be in contact with the lower surfaces of the drive roll pair 4 and 5. As shown in FIG. 3, the roll surface of the drive roll pair 4, 5 is provided with a large number of circumferential grooves 9 lined up on the surface of one roll 5 of the drive roll pair 4, 5, and the other roll 4 is provided with grooves 9 for guiding the binding tape. One circumferential groove 8 is provided. Further, a vegetable binding table 10 is installed on the rear side of the welding table 3. This binding stand 10
A switch 12 is integrally provided on one side,
Attachment parts 11, 11 are provided at both front and rear ends, and on the other hand, a support column 13 for attaching the bundling table 10 is erected on the base 1 at the rear position of the bundling table 10. 11 is detachably attached to the support column 13. For example, in the case of FIG. 4, the attachment parts 11, 11 of the binding table 10 are made into locking pieces, and the support column 13 is provided with an attachment part 14 that can detachably lock the locking pieces. 11,
The shape and structure of 14 are not limited to those described above.
In addition, mounting portions 11, 11 at both front and rear ends of the binding table 10 are provided.
By selectively attaching one side to the attachment part 14 of the support column 13, the direction of the switch 12 can be freely changed, and can be placed in front of or on the other side of the binding table 10 in FIG. This switch 12 is used to start a drive means for a binding arm 15, which will be described later, and specifically, it is used to cause the forward/reverse rotation drive motor 17 to rotate in the normal direction.

The binding arm 15 has a support shaft 16 attached to the above-mentioned support column 13.
It is pivotably mounted by a support shaft 16, and can freely rotate up and down about a support shaft 16. In the case of Figures 1 and 2,
The binding arm 15 is configured such that the rotation of a forward/reverse drive motor 17 provided on the base 1 is transmitted to a support shaft 16 via a link mechanism 18, so that the binding arm 15 rotates. Therefore, the binding arm 15 is rotated by activation of the motor 17, and during binding, it is rotated downward and fits over the vegetable bundle A placed on the binding table 10 as shown in FIG. Note that the binding arm 15 may be rotatably connected to the motor 17 via a gear instead of the link mechanism 18.

A binding tape 29 is attached to the rotating tip of the binding arm 15.
A cylindrical portion 19 for guiding and passing through is fixed integrally, and the cylindrical portion 19 comes into contact with the upper surface of the welding table 3 as shown in FIG. As shown in FIGS. 7 and 8, a pressure bonding plate 20 is fixed to the cylindrical portion 19 side, and correspondingly, an impulse heater 22 pushed upward by a coil spring 21 is provided on the welding table 3 side for thermal welding. It also includes a cutting means. This impulse heater 22 is for welding thermoplastic resin, and heats it by passing a large current only for a very short period of time for sealing. Additionally, tape holders are provided on both sides of the heat welding/cutting means. This tape presser is provided with presser plates 23 and 24 pressed downward by coil springs 25 and 26 on both sides sandwiching the crimp plate 20 on the cylindrical portion 19 side, and correspondingly presses the impulse heater 22 on the welding table 3 side. Seat plates 27 and 28 are provided on both sides of the holding plate 2.
3, 24 and seat plates 27, 28 with binding tape 29
It is designed so that it can be clipped.

Reference numeral 30 denotes a support rod that is installed above the support column 13 and at the back of the binding arm 15, and a guide roll 31 is pivotally supported at the tip of the support rod. In the case of FIGS. 1 and 2, a guide roll 32 is also pivotally supported on the binding arm 15. Further back of the binding arm 15 is a loading part for the binding tape 29, that is, a binding tape feeding part 33, into which a wound bundle 34 of the binding tape 29 is loaded. This winding bundle 34 is fitted into and supported by a rotation center shaft 37 whose both ends are supported by a pedestal 35, and the support rod 36 is movable up and down to allow the winding bundle 34 to move from one end of the rotation center shaft 37. It is designed to be detachable. In the case of FIG. 5, the lower end of the support rod 36 is attached to the side surface of the base 1 via a hinge, and a support rod presser 38 is further pivotally attached to the side surface of the base 1 so as to be rotatable along the side surface. A receiver 39 is attached between the support rod 36 and the support rod presser 38. In the case of FIG. 5, the support rod 36 can be raised and lowered by rotating in a direction substantially perpendicular to the side surface of the base 1, and when the support rod 36 supporting the rotation center shaft 37 is in the upright state, the support rod presser 38 is adapted to be received by a receiver 39 so as to press the lower end of the support rod 36 against the side surface of the base 1. Furthermore, when replacing the winding bundle 34, the support bar presser 38 is rotated in a direction in which it is removed from the holder 39, and the support bar 36
rotates downward and falls down, and the end of the rotation center shaft 37 is opened.

Further, the winding bundle 34 may be simply wound in a record manner by winding the binding tape 29 in the width of the tape, but if it is wound in a traverse manner in which the binding tape 29 is wound in the width direction of the tape,
This is preferable because the length of one roll of tape is increased, the number of tape replacements is reduced, and workability is improved. In the case of traverse winding, a plurality of guide rolls 31, 3
2 and the shape of the guide rolls 31 and 32 to be approximately drum-shaped, it is preferable to prevent the binding tape 29 from twisting or shifting from the guide rolls 31 and 32 and to smoothly feed it out. The binding tape 29 is made of thermoplastic resin, such as polyolefin (polypropylene, polyethylene),
In order to bind the vegetable bundle A softly so as not to damage it, the foaming is desirably low. In addition, the dimensions of the binding tape 29 are width 5 to 20 m/m, thickness 0.05 to 0.3
Although the range of m/m is preferred for use, it is not particularly limited to this range.

FIG. 6 shows a configuration for automatically operating the tying machine configured as described above, and is an enlarged view of the main parts on the opposite side of FIG. 1 on the top surface of the lever 4
A pair of switches 41 and 42 which sandwich 0 and constitute first and second detection means are equipped, and the binding arm 15
As the switching lever 40 is rotated to the bottom dead center, the switching lever 40
kicks one switch 41, and as it moves back to top dead center, the switching lever 40 switches to the other switch 42.
Configured to kick. Both these switches 4
Reference numerals 1 and 42 have a function of stopping the above-mentioned binding arm drive motor 17.

Further, one roll 4 of the pair of driving rolls 4 and 5 described above is provided with a driven link 44 having a ratchet mechanism 43, and a driven link 46 having a ratchet mechanism 45 is also provided on the rotation center shaft 37 of the winding bundle 34. These driven links 44,
46 and the switching lever 40 are respectively connected to the universal joint 4
7 and 47, and are connected by connecting rods 48 and 49, so that the rotation movement of the binding arm 15 causes both driven links 4
4 and 46 are designed to follow and rotate. At this time, on the driven link 44 side, rotational force is input to the drive roll 4 via the ratchet mechanism 43 only when the connecting rod 48 is pushed in the direction of the broken line arrow in FIG. 6 (that is, in the backward movement direction of the binding arm). It constitutes what is called a means for feeding a predetermined amount of binding tape. This rotating direction is the direction in which the drive roll pair 4, 5 pulls out the clamping tip 29' of the binding tape 29, and therefore the rolls 4 and 5 are assumed to be interlocked with gears, although not shown. Also, on the driven link 46 side, the connecting rod 49
Only when the tape is pulled in the direction of the solid line arrow in FIG. 6 (that is, the binding direction of the binding arm), the rotation center shaft 37 and the winding bundle 34 are rotated via the ratchet mechanism 45 to extend the binding tape 29 to the required length on the binding arm 15 side. It is configured to be carried out.

(Function) Next, the binding operation of the vegetable binding machine of the present invention will be explained with reference to the control block diagram of FIG. 10. 10th
In the figure, 50 is a timer.

As shown in FIG. 1, from the winding bundle 34 to the binding tape 29
is pulled out and once wound around the guide rolls 31 and 32, the cylindrical part 19 of the binding arm 15 is passed through, and its tip 29' is clamped between the driving roll pair 4 and 5 as shown by the chain line. Then, the vegetable bundle A is passed between the binding arm 15 and the binding table 10 and pressed against the binding tape 29, and while the tape 29 is further pulled out, the tape 29 and the vegetable bundle A are placed on the binding table 10.
When the switch 12 on the side of the binding table 10 is turned on, the drive motor 17 is driven to rotate in the normal direction, and its output is input to the support shaft 16 via the link mechanism 18, thereby rotating the binding arm 15 downward. As a result, as shown in FIG. 2, the binding arm 15 is rotated so as to cover the vegetable bundle A, and at the same time, the binding tape 29 is wound around the vegetable bundle A.

At this time, as the binding arm 15 rotates downward, the connecting rod 49 is pushed in the direction of the solid arrow in FIG.
4 is inputted with a rotational force in the opposite direction to the tape feeding direction, that is, in the tape rewinding direction, so that the binding tape 29 is wound around the vegetable bundle A without loosening due to this unwinding. Further, as shown in FIGS. 7 and 8, the space between the crimp plate 20 and the impulse heater 22, the press plates 23, 24 and the seat plate 27,
The binding tape 29 is sandwiched between the tape 28 and the tape 28. Further, at the bottom dead center of the rotation, the switch 41, which is the first detection means, is turned on and the state shown in FIG. 7 is maintained, and the timer 50 and the impulse heater 22 are energized as shown in FIG. As a result, the double portion 51 of the binding tape 29 is thermally welded and integrated, and the used binding tape portion 29'' wound around the vegetable bundle A is closed in an annular shape.

After the time required for thermal welding has elapsed, the timer 50 reverses the drive motor 17 and stops energizing the impulse heater 22. Therefore, the binding arm 15 starts to move backward, but at this time, the binding tape 2
The double portion 51 of 9 is connected to the coil spring 2 as shown in FIG.
5, 26, the holding plates 23, 24 and the seat plate 27,
28 and the impulse heater 2
2 is pressed down against the coil spring 21 by the pressure bonding plate 20, and the welded portion in a softened state is cut.
In addition, the welded portion is cooled away from the impulse heater 22. At the same time, since both sides of the welded portion to be cut are clamped by the holding plates 23 and 24 and the seat plates 27 and 28, the welded portion is pulled by the repulsive force of the bundle of vegetables A to be tied and other external forces. It is cooled so that it does not come off. By cutting the welded portion, the used binding tape portion 29'' is separated from the unused binding tape 29, and the tape tip 29' is connected to the unused binding tape 29 by welding. , At this time, the return force of the binding arm 15 is from the link 48 → the driven link 44 →
Drive roll pair 4, 5 via ratchet mechanism 43
is input to rotate the drive roll pair 4, 5, and work to advance the tape leading end 29' by a predetermined length;
By letting the binding arm 15 escape upward and opening the binding table 10, the bundled vegetable bundle A can be taken out. In this state, the tape tip 29' is integrally connected to the unused binding tape 29 as described above, and the tape tip 29' is connected to the unused binding tape 29 until this connection passes through the pair of drive rolls 4 and 5 as shown in FIG. 2
9' is smoothly advanced by the tape guides 6, 7 without wrapping around the drive roll pair 4, 5,
The binding tape 29 has returned to the state shown by the chain line in FIG.
Binding work can be carried out continuously by transporting the material to the top. Then, as the binding arm 15 moves back, the switch 42, which is the second detection means, is turned on, and the drive motor 1
7 is stopped and one binding operation is completed.

(Effects of the Invention) As detailed above, in the vegetable tying machine of the present invention, the tape welding means consisting of the pressure bonding plate and the impulse heater also serves as the cutting means for the welded portion of the tape, so that the vegetable tying machine of the present invention is not wound around the vegetable bundle. The binding tape can be easily separated from the original binding tape part, eliminating the need for a special cutting means such as a cutter, simplifying the structure, and improving safety by eliminating the possibility of injury from the cutter during work. At the same time, with the binding arm straddled over the vegetable bundle, a heat welding/cutting means is placed between the open free end of the binding arm and the binding table side which are in contact with each other, and tape is placed on both sides sandwiching the welding/cutting means. Because the presser foot is provided, the double portion of the binding tape is thermally welded and cut, and the thermally welded portion can be separated from the heater to speed up cooling, and the thermally welded portion is bundled while cooling. The vegetable bundles can be reliably bound without coming loose due to external forces such as repulsive force of the vegetable bundles.

Furthermore, in the vegetable binding machine of the present invention, one roll of the pair of drive rolls is provided with a large number of circumferential grooves lined up, and the other roll is provided with one circumferential groove for guiding the binding tape.
Since the binding tape is provided in a straight line, the binding tape can be clamped straight at almost perpendicular to the axis of the drive roll pair without meandering, and the binding tape that is heat welded by the heat welding means is difficult to shift, and the tip of the binding tape when binding. The pair of drive rolls that clamp the parts are driven a predetermined amount in the tape ejection direction in conjunction with the return movement of the binding arm, so that the unused binding tape hanging between the tape tip and the binding arm is removed as described above. The tape is pulled out while being welded and integrated by the thermal welding/cutting means, and there is no need to pull out the binding tape onto the binding table and reset it each time the binding operation is performed, as in the conventional case. Therefore, the task of tying vegetables is simply to place the vegetable bundle on the tying table and then repeat the operation of rotating the tying arm downward.
A highly efficient vegetable tying machine that can bind vegetables one after another and is easy to operate can be obtained.

Furthermore, one end of the rotational center shaft on which the binding tape feeding section supports the winding bundle of binding tape is supported by a support rod that can be raised and lowered, and the winding bundle can be freely attached and detached from the one end of the rotational center shaft. Therefore, the winding bundle of binding tape can be easily replaced and the binding work efficiency can be improved.

Furthermore, a switch for starting the driving means of the binding arm is integrally provided on one side of the binding table, and mounting portions are provided on both front and rear ends of the binding table, and one of the fitting portions selected as appropriate is mounted on the base. When it is removably attached to a support column, the position of the switch can be changed by changing the direction of the binding table back and forth as necessary, which makes it easy to use.

[Brief explanation of drawings]

Fig. 1 shows an embodiment of the vegetable binding machine of the present invention, a side view with the binding tape raised, Fig. 2 a side view of the same machine with the binding arm lowered, and Fig. 3 the same. FIG. 4 is a perspective view of a pair of drive rolls of the binding machine, FIG. 4 is a perspective view showing the installation state of the binding machine, FIG. 5 is a perspective view of a part of the binding tape feeding section of the binding machine, and FIG. Enlarged view of the back of the binding machine in Figure 1, No. 7
The figure is a side view of essential parts showing the state of the vegetable binding machine of the present invention during binding, Figure 8 is a partially cutaway side view showing the heat welding and cutting means in Figure 7, and Figure 9 is the vegetable binding machine of the present invention. A side view of the main parts showing the state when the machine is finished bundling,
FIG. 10 is a simple control block diagram of the vegetable tying machine of the present invention. DESCRIPTION OF SYMBOLS 1... Base, 2... Fixed block, 3... Welding stand, 4, 5... Drive roll pair, 6, 7... Tape guide, 8, 9... Groove, 10... Binding stand, 11...
...Mounting part, 12...Switch, 13...Support column,
15... Binding arm, 17... Drive motor, 20
...Crimping plate, 21, 25, 26...Coil spring,
22... Impulse heater, 23, 24... Pressing plate, 27, 28... Seat plate, 29... Binding tape,
33... Binding tape feeding section, 34... Winding bundle, 36... Support rod, 37... Rotation center shaft, 38
...Support rod presser, 39...Receiver, 40...Switching lever, 41, 42...Switch, 43, 45...
... Ratchet mechanism, 44, 46 ... Driven link,
48, 49... consecutive rod, 50... timer.

Claims (1)

[Scope of Claims] 1. A pair of drive rolls is provided at a suitable position in the front of a binding table supported on a base, one roll of the pair of drive rolls is provided with a large number of circumferential grooves lined up, and the other One roll is provided with a circumferential groove for guiding the binding tape, a tape guide is further provided in contact with the lower surface of the driving roll pair, and a welding table is provided between the binding table and the driving roll pair. A binding arm that is rotated downward so as to fit over the vegetable bundles placed on the binding table, and a feeding section equipped with a winding bundle of binding tape are provided at the back of the binding table. In the feeding section, one end of a rotational center shaft that supports a wound bundle of binding tape is supported by a support rod that can be raised and lowered, and the winding can be attached and detached from one end of the rotational center shaft. A binding tape is hung on the binding arm from the top, and its tip end is clamped to the pair of drive rolls, and is guided to the outside of the pair of drive rolls by a tape guide, and the binding arm that comes into contact with the pair in the straddling state is released. A thermal welding/cutting means consisting of a crimping plate and an impulse heater is provided between the free end and the welding table, and tape holders are provided on both sides sandwiching the thermal welding/cutting means, and a switch is provided to start the driving means for the binding arm. and a first detection means that detects the point in time when the binding arm straddles and abuts the binding table and energizes the thermal welding/cutting means and stops the driving means; a timer that drives the driving means in reverse upon completion of the energization, a predetermined amount feeding means that drives the drive roll pair and pulls the binding tape in conjunction with the return movement of the binding arm, and completion of the return movement of the binding arm. A vegetable binding machine characterized in that a second detection means is provided for detecting and stopping the driving means. 2. A switch for starting the driving means of the binding arm is integrally provided on one side of the binding table, and mounting portions are provided on both front and rear ends of the binding table, and one of the fitting portions selected as appropriate is attached to the support on the base. The vegetable binding machine according to claim 1, which is detachably attached to a pillar.