JPS6226332Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field The present invention relates to a vegetable binding machine for binding vegetables such as spinach and burdock into a bundle with tape.

BACKGROUND ART Conventionally, as shown in Japanese Utility Model Publication No. 51-49259, there has been a technique in which tape binding is performed by manually raising and lowering a binding arm.

Problems to be Solved by the Invention In the above-mentioned conventional technology, even if a worker's fingers or the like were caught in the adhesive cut part of the binding tape, the lifting of the binding arm could prevent personal injury or damage to the aircraft. There was a problem in that it was difficult to shorten the time required for each binding operation, and it was difficult to improve work efficiency.

Therefore, we developed a technology in which the binding arm is raised and lowered using an electric motor, but it is easy for the worker's fingers or foreign objects to get caught in the adhesive cut part of the binding tape.
There were safety issues such as the possibility of accidents resulting in injury or damage to the aircraft.

Means for Solving the Problems However, in the present invention, when a resistance greater than the work load is applied to the working part on the tip side of the binding arm that moves up and down in a reciprocating manner to bind vegetables, it is moved in a direction opposite to the reciprocating direction of the binding. The acting part and the driving part are connected to the driving part on the base end side of the binding arm so as to be bendable in the non-working direction, and a fulcrum crossing spring that maintains this posture when the working part is bent in the non-working direction. It is characterized by being connected between

Function: Therefore, even if a foreign object is caught during work, the working part of the binding arm is bent and supported to the non-working side, so even if the binding arm is continuously forcibly driven, there is no chance of the worker's fingers or foreign objects being caught. It can prevent the binding arm from repeatedly operating in the soldered state, and can be handled safely by minimizing personal injury and damage to the binding arm.
Compared to the conventional method, it is possible to easily improve the bundling work efficiency and the handling operability.

Embodiments Hereinafter, embodiments of the present invention will be described in detail 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. This is a binding stand that can be attached to the front and rear of the vehicle with variable inclination.

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, and a stop claw 30a at the tip of the lever 30 is inserted around the plate 21. The plunger 32 of the stop solenoid 31, which is brought into contact with the side and is attached to the machine base 1, is connected to the lower end of the lever 30 via the connecting rod 33, and the plunger 32 is made to protrude against the retraction spring 34. The stop claw 30a is removed from the notch 27, and after one revolution of the plate 21, the stop claw 30a is removed from 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, the tape pressing head 42 and the tape clamping head 43 are respectively fixed to the opposing surfaces of the upper ends of the levers 40 and 41, and the ends of the binding tape 9 are held between the heads 42 and 43, and the binding arm 3 and the binding operation are performed. The tape 9 with the adhesive side facing outward is stretched between the cases 14. Further, a binding cam 44 is formed on the circumferential side of the binding operation cam plate 22, 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 29. 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 when the roller 45 comes into contact with the cam 44, the upper end of each of the levers 40 and 41 is connected to the tape guide groove 37. Formed so as to separate from the Furthermore, the machine 1
A power switch 49 is attached to one side, a work operation plate 50 is attached to the front end side of the bundling table 16 so as to be movable up and down, and a work start switch 51 is provided to energize the stop solenoid 31. The switch 51 is configured to be turned on.

As shown in FIG. 7, an endless groove-shaped swing cam 5 is formed on the side surface of the arm elevating cam plate 23.
A cam floor shaft 53 embedded at the lower end of the binding arm 3 is fitted onto the cam 52, and one rotation of the cam plate 23 causes the arm 3 to reciprocate and swing, and the arm 3 is suddenly lowered. a tape winding part A to reduce the descending speed of the arm 3, a descending deceleration part B to reduce the descending speed of the arm 3, a tape adhesion part C to adhere both ends of the tape 9 to which vegetables are tightly attached, and a cutting preparation to tension the cut part of the tape 9. part D, a tape cutting part E that cuts and separates the tape 9, and a re-clamping part F that holds the cut tape 9 on the feeding side.
and an arm return section G that rapidly moves the arm 3.
A rise deceleration part H that reduces the rising speed of the arm 3 and an arm standby part I that stops and holds the arm 3 at the highest position are provided in an endless manner continuous to the cam 52, and the vegetable binding tape 9 is attached. The moving speed of the arm 3 is configured to be reduced immediately before the lowering point and the rising point of the binding arm 3 to be fed out. The tape adhesion 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 the arm 3 is stopped at each part C, E, and I. Form to support.

As shown in FIG. 8, 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. 9, a cutter lever bracket 61 is installed on the top surface of the machine base 1 inside the binding operation case 14.
is fixed, the cutter lever 63 is supported on the bracket 61 via the pin 62, and the lever 63 is fixed.
A tape cutter 65 is attached to the upper end via a holder 64.
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 a 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 tape guide groove 37 of the tape guide plate 15 from above. and press the groove 37.
When the tape 9 is held between the upper edge and the tape holding head 72, and the pinch roller 11 is brought into contact with the tape holding head 43, and the tape 9 is held between the roller 11 and the holding head 43, the Figures 10 and 11
As shown in the figure, the cutter 65 is oscillatedly rotated from above to below on one side of the tape 9, and the cutter 65 is moved approximately perpendicularly to the feeding direction of the tape 9, so that the cutter 65 is moved between the levers 40 and 41. It is configured to cut 9.

Figure 12 is an electrical circuit diagram for bundling control.
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, 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 73 is applied to the motor 10 via the power switch 49 and the operation switch 36, and the power 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 is turned off. 30a is released from the locking notch 27, the switch 36 is turned on in conjunction with the lever 30, and the motor 1 is turned on.
While performing the binding work by rotating the tape 9, as shown in FIG. The switch 59 is temporarily turned on to energize the tape cutting solenoid 66, so that the cutter 65 cuts the tape 9.

As shown in FIGS. 13 and 14, a tape clamping spring 80 for crimping the semi-cylindrical tape pressing head 42 and the semicircular notch 43a of the tape clamping head 43 is attached to the tape receiving lever 40 and the tape clamping head 43. A lever return spring 81 for biasing between the levers 41 and 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 The rollers 45 follow each lever 40,
41 is formed to swing and rotate. 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 attached to the binding operation case 14.
and rotate the lever 40 until the end of the tape 9 clamped by the pressing head 42 and the clamping head 43 is pulled out from between the heads 42 and 43 by the rocking rotation of the levers 40 and 41. form it so that it The tape holding lever 4 is moved by the binding cam 44.
1 swings to the maximum, the tape clamp head 43
A pinch roller 11 is brought into contact with the upper corner portion 43b, and a tape guide plate 83 that guides the tape 9 to be stretched through the pinch roller 11 is attached to the binding arm 3.
At the same time, a slider 86 is attached to the holder 84 at the tip of the arm 3 via a vertical shaft 85, the tape presser lever 71 is fixed to the slider 86, and the tape presser head 72 is attached to the tape guide groove 37. The slider 86 is urged by a tape compression spring 87 that supports the tape by compression. Further, 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 the end of the tape 9 is held between the two ends, the tape holding lever 41 is manually swung and rotated via the pin 88 against the lever return spring 81 to move the respective heads 42 and 43 toward and away from each other. It is formed in such a way that it

By the way, as shown in FIGS. 15 and 16, the binding arm 3 is divided into an arm actuating part 3a and an arm driving part 3b in the middle, and the base end side of the arm actuating part 3a is the arm driving part. It is bendably connected to the distal end side of the section 3b via a pivot pin 90, and a fulcrum crossing spring 91 is stretched between the arm actuating section 3a and the driving section 3b, and is normally provided on each section 3a, 3b. Stoppa 92
a and 92b are brought into contact with each other and the spring 9
By connecting and holding each part 3a and 3b with one force, the working posture of the binding arm 3 is maintained, and while the binding arm 3 is lowered and the binding operation is in progress, for example, the tip of the arm 3 and the operation case 14 or When a worker's hand or a foreign object is caught between the levers 40 and 41, the arm actuating portion 3a is prevented from bending in the opposite direction of movement against the force of the spring 91, as shown by the solid line in the figure. Thus, it is configured to act as a safety device for the binding arm 3.

Further, as shown in FIGS. 17 and 18, the work operation plate 50 has its tip facing the closed space chamber 94 on the back side of the binding table 16 formed by the binding table 16 and the binding table cover 93, and has a press operation section. 50a is exposed to the outside, and a shaft 96 is provided on the binding table 16 of the space chamber 94 via a bracket 95, and a switch mounting bracket 97 is provided on the cover 93, and an operation plate is provided on the shaft 96. 5
A long hole 98 is provided in the bracket 97 so that the bracket 97 can be raised and lowered.
The work start switch 51 is attached so as to be vertically adjustable, and when the operation part 50a of the operation plate 50 is pressed downward, the actuator 51a of the switch 51 is pressed by a pressing piece 99 integrally formed on the plate 50. This switch 51 is configured to be turned on. Then, a stand guide 100 is fixed to one end side of the binding stand 16, and the stand guide 100 is attached to the guide plate 15 in a sliding manner.
7, it is installed so that it can be adjusted vertically and tilted back and forth.

The binding arm 3 is for inserting and guiding the arc-shaped guide hole 101 and the cam floor shaft 53 centered on the arm shaft 5 formed on the front side of the drive case 2, and the lifting cam plate centered on the cam shaft 18. When the binding arm 3 is swung at different speeds by the rotation of 23, it is displaced within the guide hole 101, and for example, when the working end of the binding arm 3 is stopped at the highest position, its vertical movement is configured to be regulated by this guide hole 101.

Furthermore, in addition to the work start switch 51 operated by the operation plate 50, this binding machine has a foot operation pedal 103 (see FIG. 1) incorporating a work start switch 102 (see FIG. 12) electrically connected to the switch 51 in parallel. The binding machine is equipped as shown in FIGS. 2 and 2, and is constructed so that the binding machine can also be driven by the operator's foot movement.

The present invention is constructed as described above, and as shown in FIGS. 1 and 13, the binding arm is configured to sandwich the tip of the binding tape 9 with the tape pressing head 42 and the tape clamping head 43 and lift it to the uppermost position. The tape 9 is stretched between the tip of the tape 9 and the binding operation case 14. and,
As shown in Figure 19, a bunch of vegetables such as spinach 104
Place the vegetable bundle 104 on the binding table 16 so as to wrap the binding tape 9 around it, and press down the work operation plate 50 with the hand holding the vegetable bundle 104. The work start switch 51 is turned on and the stop solenoid 31 is temporarily turned on. The stop lever 30 is pulled and the stop claw 30a is engaged with the locking notch 2 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 winder 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 gum 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 brought into pressure contact with the binding arm 3, and both ends of the binding tape 9 wound around the vegetable bundle 104 are bonded together at the same time as the binding operation cam plate 22
The binding operation roller 45 is in sliding contact with the binding cam 44 of
Tape receiver lever 40 resists lever return spring 81
Then, the tape clamping lever 41 is rotated to remove the clamping end of the tape 9 from between the pressing head 42 and clamping head 43 of each of the levers 40 and 41. As shown in FIG. 21, the pressing head 42 comes into contact with the stopper 82,
When 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 to release the clamping member. The pinch roller 11 is pressed against the upper corner portion 43b of the head 43, the tape 9 is tensioned between the tape guide groove 37 and the clamping head 43, and the upper end of the tape receiving lever 40 is brought into contact with the intermediate lower surface of the tape 9. The cam floor shaft 53 moves to the tape cutting portion E of the swing cam 52, the binding arm 3 temporarily stops, and the timing pin 58 turns on the tape cutting switch 59, energizing the tape cutting solenoid 66. to swing and rotate the cutter lever 63, and move the cutter 65 from above one side of the binding tape 9 to below the other side between the pressing head 42 and the clamping head 43 as shown in FIGS. 10 and 11, The tape 9 is cut by making the cutter 65 substantially orthogonal to 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. Lower the arm 3 slightly to fit the pinch roller 11 into the semicircular notch 43a of the clamp head 43,
The cut end of the tape 9 is glued to the clamp head 43. 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, as shown in FIGS. 23 and 24. Tape clamping spring 80
With the pressing head 42 and clamping head 43 of each lever 40, 41 pressed together, the lever return spring 8
1 causes the levers 40, 41 to move back, and when the cam floor shaft 53 reaches the ascending deceleration section H of the swing cam 52, the ascending speed of the binding arm 3, which has been raised rapidly, decreases, and the swing cam 52 goes into arm standby. When the cam floor shaft 53 moves to part I, the binding arm 3 is temporarily stopped at the highest position, and 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 is turned off. 36 is turned off and the motor 10 stops due to inertial rotation, the stop claw 30a engages with the locking notch 27 of the cam plate 21, and in this way the binding arm 3 is stopped at the highest position. At this time, the arm standby portion I of the swing cam 52 is formed by an arc centered on the axis of the cam shaft 18, and the cam floor shaft 53 of the binding arm 3 is formed by an arc centered around the axis of the arm shaft 5. The cam floor shaft 53 is moved around the arm shaft 5 so as to displace the upper part of the cam floor shaft 53 so as to be substantially orthogonal to the tangent of a circle centered on the cam shaft 18.
Since the swing cam 52 swings back and forth, even if an external force for vertical movement is applied to the binding arm 3 at the highest position, the swing cam 52
A cam floor shaft 53 abuts against the side edge of the binding arm 3 to stop and support the binding arm 3.

Then, during the binding work, the binding arm 3
When an operator's hand or a solid foreign object is caught between the working end of the arm 3 and the binding operation case 14, the tape receiver lever 40, the tape clamping lever 41, etc., the operating portion 3a of the arm 3 is This is to avoid bending in the opposite direction of movement, thereby preventing damage to this part and preventing accidents for workers, thereby improving safety.

Effects of the Invention As is clear from the above embodiments, the present invention allows the action portion 3a on the tip side of the tying arm 3, which moves up and down reciprocatingly to bind vegetables, to move in the tying and reciprocating direction when a resistance greater than the work load is applied. a fulcrum edge spring that is connected to the driving part 3b on the base end side of the binding arm 3 so as to be bendable in a non-working direction opposite to the above, and maintains this posture when the working part 3a is bent in the non-working direction; 91 is the acting part 3a and the driving part 3.
If a foreign object gets caught during work, the working part 3a of the binding arm 3 will be bent and supported on the non-working side, so even if the binding arm 3 is continuously forcibly driven, the work will not be difficult. It can prevent the binding arm 3 from repeatedly operating when a person's fingers or foreign objects are caught, and it can be handled safely by minimizing personal injury and damage to the binding arm 3. This has practical effects such as the ability to easily improve work efficiency and handling operability.

[Brief explanation of the drawing]

Fig. 1 is an overall front view showing one 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 diagram of the binding operation cam plate, FIG. 7 is a partial explanatory diagram of the arm elevating cam plate, FIG. 8 is a partial explanatory diagram of the tape tension cam plate, and FIG. 9 is a partial explanatory diagram of the tape tension cam plate. 10 and 11 are illustrations of a tape cutter, FIG. 12 is an electric circuit diagram for controlling binding, FIG. 13 is a partial illustration of a tape holding lever, and FIG. 14 is an illustration of its operation. , Fig. 15 is an explanatory diagram of the operation of the binding arm, Fig. 16 is an enlarged view taken from the - line of the previous figure, Figs. 17 to 18 are cross-sectional views of the bundling stand, and Figs. FIG. 3 is an action explanatory diagram showing the order. 3... Binding arm, 3a... Acting part, 3b...
Drive unit, 91... Spring beyond the fulcrum.

Claims (1)

[Scope of utility model registration request] The binding arm 3 is capable of bending the working part 3a on the tip side of the binding arm 3, which moves up and down reciprocatingly to bind vegetables, in a non-working direction opposite to the reciprocating direction of binding when a resistance greater than the working load is applied. It is connected to the driving part 3b on the proximal end side, and the acting part 3a
A vegetable tying machine characterized in that a fulcrum-crossing spring 91 that maintains this posture when bent in a non-acting direction is connected between the acting part 3a and the driving part 3b.