JPH0116727B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION "Field of Industrial Application" The present invention relates to a vegetable binding machine for binding vegetables such as spinach into appropriate sizes.

``Prior Art'' Conventionally, as shown in Japanese Patent Application Laid-open No. 126008/1983, there has been a technique in which a vegetable binding tape is fed out from a binding arm and vegetables are bound to an appropriate size using the binding tape.

``Problems to be Solved by the Invention'' The above-mentioned prior art involves forming a binding arm by curving it in substantially the same shape as the arcuate wire that performs the binding operation, and sliding the binding arm back and forth on the arcuate wire by forward and reverse rotation of a motor. Since the binding arm support structure cannot be easily simplified because the motor is operated in the forward and reverse directions, the switch structure and control circuit cannot be easily simplified, and the ease of handling such as assembly and maintenance is difficult. There were problems in that it was not easy to improve the coupling function, such as improving the speed and driving the binding arm at high speed.

``Means for Solving the Problems'' However, the present invention provides a binding arm that feeds out vegetable binding tape so as to be swingable via an arm shaft, and an arm lifting/lowering cam plate that is rotatably driven by a motor. , the binding arm is connected to an endless groove-shaped swing cam formed on the cam plate, a tape winding part that lowers the arm rapidly, a descending deceleration part that reduces the descending speed of the arm, and the vegetables are tightly tied together. The swing cam is characterized in that the swing cam is continuously provided with a tape adhesion part for adhering both ends of the tape, an arm return part for rapidly raising the arm, and a rise deceleration part for reducing the rising speed of the arm. be.

"Operation" Therefore, since the binding arm is swung via the swing cam by the unidirectional rotation of the motor using the arm shaft as a fulcrum, the binding arm support structure and the motor control circuit can be simplified compared to the past. This makes it possible to easily improve handling operations such as assembly and maintenance by eliminating the need to adjust the position and movement amount of the binding arm, and to improve handling operability such as assembly and maintenance more easily than before. This can be easily done by simply setting the shape of the cam, and the binding function can be easily improved by driving the binding arm at a higher speed compared to the conventional method.It is also easy to improve the binding work efficiency by shortening the one-cycle operation time of the binding arm. It is possible.

"Embodiments" Examples of the present invention will be described in detail below based on the drawings.

FIG. 1 is a front view of the whole, and FIG. 2 is a plan view of the same. In the figure, 1 is a box-shaped machine base, 2 is a drive case that stands on the left corner of the top surface of the machine base 1, and 3 is a drive case that A binding arm 6 has its base end supported via an arm shaft 5 on a bearing frame 4 erected parallel to the case 2, and a tape tension arm 6 is rotatably supported on a tape wheel shaft 7 supported on the case 2. Spring spring 8
9 is a vegetable binding tape whose inner surface is coated with adhesive and is fitted onto the tape wheel 6; 10 is a tape wheel that drives the binding arm 3 to swing; An electric motor; 11 is a pinch roller supported at the tip of the binding arm 3; 12 and 13 are the arm 3;
It is a tape guide roller supported in the middle of
The tape 9 is stretched on the tip of the binding arm 3 via the rollers 11, 12, 13.

Further, in the figure, 14 is a binding operation case that stands on the right side of the top surface of the machine 1, 15 is a tape guide plate that is erected inside the case 14, and 16 is movable up and down via a slide 17 on the guide plate 15. It is a binding stand that is attached to the.

As shown in FIGS. 3 and 4, the motor 10 is interlocked with the camshaft 18 supported by the drive case 2 through gears 19, 20, etc., and the stop cam plate 21 and the binding operation cam plate 22. The arm elevating cam plate 23 and the tape tension cam plate 24 are pivotally supported on the cam shaft 18. Each of the cam plates 21, 22,
23 and 24 are integrally fixed by screws 25..., and the cam plates 21 to 24 are rotated in one direction by the motor 10, and the stop step 26 and the locking notch are fixed as shown in FIG. 27 is formed on the circumferential side of the stop cam plate 21, and is provided with a stop lever 30 whose intermediate part is supported by a bracket 28 fixed to the machine base 1 via a pin 29. A stop solenoid 31 that is brought into contact with the circumferential side and is also attached to the machine base 1
By connecting the plunger 32 to the lower end of the lever 30 via the connecting rod 3 and protruding the plunger 32 against the retraction spring 34, the stop pawl 30a is released from the notch 27, and one part of the plate 21 is removed. After rotation, the stop claw 30a touches the stop step 2.
6 and engages in the locking notch 27. An operating piece 35 is provided at the tip of the plunger 32.
is fixed, and when the plunger 32 protrudes, the operating piece 35 turns on the operating switch 36 of the motor 10.

As shown in FIG. 6, a tape guide groove 37 is provided at the upper edge of the tape guide plate 15, and a tape receiving lever 40 and a tape clamping lever 41 are supported by a bracket 38 fixed to the inside of the guide plate 15 via a pin 39. At the same time, a pressing head 42 and a tape clamping head 43 are respectively fixed to the opposing surfaces of the upper ends of each lever 40, 41, and each head 42, 43 pinches the tip of the binding tape 9, and the binding arm 3 and the binding operation case are fixed. The tape 9 with the adhesive side facing outward between 14 and 14
It is formed so that it is stretched. Further, a binding cam 44 is formed on the circumferential side of the binding operation cam plate 22, and a binding operation roller 45 attached to the circumferential side of the plate 22 is provided on the roller lever 46, and the intermediate part of the lever 46 is supported by the pin 22. The lower end of the lever 46 is connected to the lower end of the tape holding lever 41 via the pull links 47 and 48, and the cam 4 is connected to the lower end of the tape holding lever 41.
The levers 40 and 41 are formed so as to separate from the tape guide groove 37 when the roller 45 comes into contact with the tape guide groove 37. Furthermore, a power switch 49 is installed on one side of the machine base 1, and a power switch 49 is installed on one side of the machine base 1, and a
A work operation plate 50 is attached to the front end of the workpiece 6 so as to be movable up and down, and a work start switch 51 for energizing the stop solenoid 31 is provided, and the switch 51 is turned on by pushing down the plate 50.

As shown in FIGS. 7 and 8, an endless groove-shaped swing cam 52 is formed on the side surface of the arm elevating cam plate 23, and a cam floor shaft 53 implanted at the lower end of the binding arm 3 is fitted onto the cam 52. , the arm 3 is reciprocated by one rotation of the cam plate 23, and the arm 3 is
a tape winding part A that suddenly lowers the arm 3;
a descending deceleration part B that reduces the descending speed of the tape 9, a tape adhesion part C that glues both ends of the tape 9 to which vegetables are tightly attached, a cutting preparation part D that tensions the cut part of the tape 9, and a tape that cuts and separates the tape 9. A cutting section E, a re-clamping section F that holds the feed side of the cut tape 9, an arm return section G that rapidly raises the arm 3, an ascending deceleration section H that reduces the ascending speed of the arm 3, and the arm 3. The cam 52
Continuously and endlessly put vegetable binding tape 9
The moving speed of the binding arm 3 is decelerated immediately before the lowering point and the raising point of the binding arm 3 when the binding arm 3 is fed out. The tape adhesive part C, the tape cutting part E, and the arm standby part I are each formed by an arc centered on the axis of the camshaft 18, and each part C, E,
At I, the arm 3 is formed to be supported in a stopped state.

As shown in FIG. 9, a tension cam 54 is formed on the circumferential side of the tape tension cam plate 24, and a tension pulley 55 is engaged and supported by the tape wheel shaft 7 that supports the rolled binding tape 9. A ring belt 56 is fitted to the pulley 55, and when the binding arm 3 is descending, the ring belt 56 is fitted to the V groove 57 of the cam 54, and while the arm 3 is descending, the tape 9 is formed so as to be rewound onto the tape wheel 6. Further, a timing pin 58 for cutting the tape 9 is installed in the cam plate 24, and a tape cutting switch 59, which is turned on by the pin 58, is attached to the machine base 1 via a bracket 60.

As shown in FIG. 10, the above-mentioned binding operation case 14
Inside, cutter lever bracket 6 is attached to the top of machine base 1.
1 is fixed, a cutter lever 63 is supported on the bracket 61 via a pin 62, and the lever 6
3 Attach the tape cutter 6 via the holder 64 to the upper end side.
A cutter 65 is installed on one side of each of the levers 40 and 41, and a tape cutting solenoid 66 is provided on the lower surface of the machine base 1, and the cutter lever 63 is connected to the plunger 67 of the solenoid 66 via a link 68. The lower ends are connected, a return spring 69 for raising the cutter 65 is biased against the link 68, and a stopper 70 for determining the return position of the cutter 65 is brought into contact with the plunger 67. Further, as shown in FIG. 1, a rubber tape presser head 72 is attached to the tip of the binding arm 3 via a tape presser lever 71, and the tape presser head 72 is inserted into the tapeid groove 37 of the tape guide plate 15 from above. The tape 9 is held between the upper edge of the groove 37 and the tape holding head 72, and the pinch roller 11 is held between the upper edge of the groove 37 and the tape holding head 4.
When the tape 9 is held between the roller 11 and the clamping head 43, the cutter 65 is moved downward from above on one side of the tape 9, as shown in FIGS. 11 and 12. The cutter 65 is oscillated and rotated to move the cutter 65 substantially perpendicularly to the feeding direction of the tape 9 to cut the tape 9 between the levers 40 and 41.

Figure 13 is an electric circuit diagram for bundling control, and
It includes a transformer 74 connected to a 100 volt power source 73 via a power switch 49, a rectifier circuit 75, and a constant voltage circuit 76, and the constant voltage circuit 7
6 and connected to the work start switch 51, and the knot circuit 7.
8 and a solid relay circuit 79, and is formed so that when the switch 51 is turned on, the stop solenoid 31 is temporarily excited via the solid relay circuit 79, and the stop lever 30 is separated from the stop cam plate 21. do. Further, the power supply 73 is applied to the motor 10 via the power switch 49 and the operation switch 36, and the power supply 73 is applied to the tape cutting solenoid 66 via the power switch 49 and the tape cutting switch 59, so that the stop lever 30 When the stop claw 30a is released from the locking notch 27, the lever 30
The switch 36 is turned on in conjunction with the 12th
As shown in the figure, when the binding is completed and the feeding side of the tape 9 is tensioned between the tape guide groove 37 and the tape holding head 43, the timing pin 58 turns on the switch 59 temporarily and the tape cutting solenoid is turned on. 6 is excited, and the cutter 65 cuts the tape 9.

As shown in FIGS. 14 and 15, in order to press the semi-cylindrical tape pressing head 42 and the semicircular notch 43a of the tape clamping head 43, a tape clamping spring 80 is connected to the tape receiving lever 40 and the tape clamping lever. At the same time, a lever return spring 81 for attaching and supporting the binding operation roller 45 on the circumferential side of the binding operation cam plate 22 is applied to the tape clamping lever 41, and the binding cam 44 is pressed against the roller. 45 to follow each lever 40, 41.
It is formed so that it can be oscillated and rotated. A stopper 82 that is brought into contact with the tape pressing head 42 to restrict the swinging rotation of the receiving lever 40 is fixed to the binding operation case 14, and the end portions of the tape 9 held by the pressing head 42 and the clamping head 43 are fixed to each other. The lever 40 is configured to be rotated by swinging and rotating the levers 40 and 41 until it is pulled out from between the respective heads 42 and 43. When the tape clamping lever 41 is oscillated to the maximum by the binding cam 44, the pinch roller 11 is brought into contact with the upper corner 43b of the tape clamping head 43, and the tape 9 to be stretched is stretched through the pinch roller 11. A guiding tape guide plate 83 is attached to the tip of the binding arm 3, and a holder 8 at the tip of the arm 3 is attached.
4 is provided with a slider 86 via a vertical shaft 85, the tape pressing lever 71 is fixed to the slider 86, and a tape pressing spring 87 that presses and supports the tape presser head 72 in the tape guide groove 37 is attached to the slider 86. 86.
Furthermore, a manual release pin 88 is fixed to one side of the tape holding lever 41, and the pin 88 is made to protrude outward from the case 14 through the elongated hole 89 of the binding operation case 14. When pinching the end of the tape 9 between them, the lever return spring 81
by manually rocking and rotating the heads 42,
43 are formed so as to be moved toward and away from each other.

The present embodiment is constructed as described above, and as shown in FIGS. 1 and 14, the tip of the binding tape 9 is pinched by the tape pressing head 42 and the tape clamping head 43.
The tape 9 is stretched between the tip of the binding arm 3 raised to the highest position and the binding operation case 14. Then, as shown in Figure 16, a bunch of vegetables such as spinach 9
When the vegetable bundle 90 is placed on the binding table 16 so as to wrap the binding tape 9 around the vegetable bundle 90 and the work operation plate 50 is pushed down with the hand holding the vegetable bundle 90, the work start switch 51 is turned on and the stop solenoid 31 is turned on. Temporarily energize and pull the stop lever 30 to lock the stop claw 30a into the locking notch 27 of the stop cam plate 21.
At the same time, the operating switch 36 is turned on to rotate the motor 10. In conjunction with the motor 10, each cam plate 21, 22, 2
3 and 24 rotate, and the arm elevating cam plate 23
The cam floor shaft 53 is moved along the tape winding part A of the swing cam 52, and the tip side of the binding arm 3 is suddenly lowered. At this time, the tension cam 54 of the tape tension cam plate 24 presses against the ring belt 56 of the tension pulley 55, rotates the tension pulley 55, rewinds the binding tape 9, holds the tape 9 under tension, and When the cam floor shaft 53 reaches the descending deceleration part B of the swing cam 52, the descending speed of the binding arm 3 decreases,
When the cam floor shaft 53 moves to the tape adhesive part C, the binding arm 3 temporarily stops and the tape guide groove 3 of the tape guide plate 15 moves as shown in FIG.
The tape presser head 72 at the tip of the binding arm 3 is pressed against the binding arm 3 to adhere both ends of the binding tape 9 wound around the vegetable bundle 90, and at the same time, the binding operation roller 45 is brought into sliding contact with the binding cam 44 of the binding operation cam plate 22. The tape receiving lever 40 and the tape clamping lever 41 are rotated against the lever return spring 81, and the clamping end of the tape 9 is separated from between the pressing head 42 and clamping head 43 of each of the levers 40, 41. As shown in FIG. 18, when the pressing head 42 comes into contact with the stopper 82 and the tape clamping lever 41 further swings and rotates against the tape clamping spring 80 and the lever return spring 81,
The cam floor shaft 53 moves to the cutting preparation part D of the swing cam 52, and the binding arm 3 further descends, and the pinch roller 11 is attached to the upper corner part 43b of the clamping head 43.
Crimp the tape guide groove 37 with the clamping head 4.
The tape 9 is tensioned between 3 and 3, and the upper end of the tape receiving lever 40 is brought into contact with the intermediate lower surface of the tape 9, and the cam floor shaft 53 is moved to the tape cutting part E of the swing cam 52, and the binding arm 3 is temporarily moved. Then, the tape cutting switch 59 is turned on by the timing pin 58, the tape cutting solenoid 66 is energized, the cutter lever 63 is oscillated, and the pressing head 42 is turned on as shown in FIGS. 11 and 12. Then, the cutter 65 is moved obliquely from above one side of the binding tape 9 between the clamping heads 43 to below the other side, and the cutter 65 is made substantially perpendicular to the tape 9 to cut the tape 9. At this time, the tension cam 54 separates from the tension pulley 55, releasing the tension on the tape 9 caused by the cam 54, and the cam floor shaft 53 moves to the re-clamping part F of the swing cam 52, so that it is bound as shown in FIG. The arm 3 is lowered slightly to fit the pinch roller 11 into the semicircular notch 43a of the clamp head 43, and the cut portion of the tape 9 is adhered to the clamp head 43. Then, when the cam floor shaft 53 moves to the arm return portion G of the swing cam 52 and the binding arm 3 begins to rise rapidly, the binding operation roller 45 separates from the binding cam 44 of the binding operation plate 22, and the 20th
As shown in FIG. 21, with the pressing head 42 and clamping head 43 of each lever 40, 41 pressed together by the tape clamping spring 80, each lever 40, 41 is moved back by the lever return spring 81. Along with letting
When the cam floor shaft 53 reaches the ascending deceleration section H of the swing cam 52, the rising speed of the tied arm 3 that has been raised rapidly decreases. Temporarily stop at the raised position, at this time,
The stop claw 30a of the stop lever 30 comes into contact with the stop step 26 of the stop cam plate 21, and the actuation switch 3
6 is turned off, and the inertial rotation of the motor 10 causes the stop claw 30a to close to the cam plate 2.
When the binding arm 3 stops at the highest position, the arm standby part I of the swing cam 52 is engaged with the locking notch 27 of the camshaft 18. In addition, the cam floor shaft 53 of the binding arm 3 is formed with the arm shaft 5.
The camshaft 1 is displaced on an arc centered on the axis of
Since the arm shaft 5 and the central cam floor shaft 53 are reciprocated so as to be substantially perpendicular to the tangent line of the circle centered at A cam floor shaft 53 abuts against the side edge of the binding arm 3 to stop and support the binding arm 3.

"Effects of the Invention" As is clear from the above embodiments, the present invention has the advantage that the binding arm 3 for feeding out the vegetable binding tape 9 is connected to the arm shaft 5.
An arm elevating cam plate 23 is provided to be swingable through the cam plate 23 and rotatably driven by the motor 10, and the binding arm 3 is connected to an endless groove-shaped swing cam 52 formed on the cam plate 23. A tape winding part A that causes the arm 3 to descend rapidly; a descending deceleration part B that reduces the descending speed of the arm 3; a tape adhesion part C that bonds both ends of the tape 9 to which vegetables are tightly attached; The swing cam 52 is continuously provided with an arm return section G that causes the arm to move upward, and an upward deceleration section H that reduces the upward speed of the arm 3. Binding arm 3 via cam 52
Since the binding arm 3 is oscillated, it is possible to simplify the support structure of the binding arm 3 and the control circuit of the motor 10 compared to the conventional method.
The swing cam eliminates the need for position adjustment and movement amount adjustment, making it easier to handle operations such as assembly and maintenance than before. This can be easily done by simply setting the shape of 52, and the bundling function such as high-speed drive of the bundling arm 3 can be easily improved compared to the conventional method.
This has remarkable effects such as the ability to easily improve binding work efficiency by shortening the one-cycle operation time of the binding arm 3.

[Brief explanation of drawings]

Fig. 1 is an overall front view showing an embodiment of the present invention, Fig. 2 is a plan view thereof, Fig. 3 is a sectional plan view, Fig. 4 is an exploded explanatory view of the cam plate, and Fig. 5 is a stop cam. Fig. 6 is a partial explanatory view of the plate, Fig. 6 is a partial explanatory view of the binding operation cam plate, Fig. 7 is a partial explanatory view of the arm elevating cam plate, Fig. 8 is an enlarged explanatory view of the swing cam, and Fig. 9 is a tape tension cam. FIG. 10 is a partial explanatory diagram of the tape cutter. FIGS. 11 and 12 are explanatory diagrams of tape cutting. FIG. 13 is an electrical circuit diagram for controlling binding.
4 is a partial explanatory diagram of the tape clamping lever, FIG. 15 is an explanatory diagram of the operation of the previous figure, and FIGS. 16 to 21 are explanatory diagrams of the operation showing the order of binding vegetables. 3... Binding arm, 5... Arm shaft, 9... Vegetable binding tape, 10... Motor, 23... Cam plate, 5
2...Swing cam, A...Tape winding part, B...Descent deceleration part, C...Tape adhesive part, G...Arm return part,
H... Ascent deceleration section.

Claims (1)

[Claims] 1. A binding arm 3 for feeding out vegetable binding tape 9 is swingably provided via an arm shaft 5, and an arm lifting/lowering cam plate 23 is provided which is rotationally driven by a motor 10, and an endless groove formed in this cam plate 23 is provided. A tape winding section A that connects the binding arm 3 to a shaped swing cam 52 and causes the arm 3 to descend rapidly, a descending deceleration section B that reduces the descending speed of the arm 3, and a tape 9 to which vegetables are tightly attached. A tape adhesive part C that adheres both ends,
an arm return part G that rapidly raises the arm 3;
A vegetable tying machine characterized in that the swing cam 52 is continuously provided with a rise reduction section H that reduces the rise speed of the arm 3.