JPS62151116A - String winder in roll baler - 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 A0 Objectives of the Invention A. Field of Industrial Application The present invention seeks to provide a complete string winding device for a roll baler.

Conventional technology The roll baler IC, which compresses the crop into a cylindrical shape in the bale chamber and wraps a string around the outer circumference of the bale, is equipped with a string holding mechanism and a string reeling device attached to a guide member installed horizontally between both side walls of the machine. a mechanism and a cord cutting mechanism, the cord winding device engages with the guide member, the cord winding device is configured to be able to slide from side to side on the guide member, and the lower part of the device is provided with the device. An endless chain for moving the machine is stretched over sprockets provided near both side walls, and a shaft protruding from one of the endless chains engages with a vertically long hole formed in the device. As the sprocket rotates, the endless chain moves, and a shaft protruding from the endless chain moves left and right between the outer ends of the two sprockets, and the movement of the shaft causes the device to move left and right on the guide member. The string unwinding device is operated by an operator by remote control, and when the end of the string is grasped by the bale, the above sprocket rotates in conjunction with the movement of the string, and the string winding device moves left and right to wind the string around the outer circumference of the bale. . Once a suitable number of strings have been wrapped around the bale, the operator activates the cutting mechanism to cut the strings.

・1 Problems to be solved by the invention However, in the conventional device, the operator remotely sends out the string in the vicinity of the bale until the string is gripped by the bale. There is f, and
The string is gripped by the bale and fed into the bale chamber by the same circumference of the bale.The string winding device, which moves left and right due to the movement of the string, is almost constant, so the string is wound around the bale in a spiral at approximately equal intervals. . In order to maintain the shape of the ejected bale in an almost cylindrical shape, it is sufficient to wrap a small number of strings around the outer periphery near the center where the condition is stable, and to wrap the string more around the outer periphery on both sides where the condition is relatively unstable. However, in conventional devices, strings are wrapped around the outer circumference at approximately regular intervals.

In order to increase the number of wraps on the outer circumference near both sides of the bale, the moving speed of the above device must be slowed down.

As a result, the string is unnecessarily wrapped around the center even when the number of strings to be wound is small, and it takes a lot of time to wind the string.

B1 Structure of the Invention A6 Means for Solving the Problem In order to solve the above-mentioned problems, the present invention provides a plate between both sides of the machine body, and pivots an arm configured to hold a string at the tip to the plate. A spring is stretched between the end of the arm and the side wall, and the arm operates the shaft and arm that protrude between the arm pivot and the tip.The arm operates the crank attached to the output shaft of the deceleration box, which decelerates the crank. A one-way clutch is built into the box output shaft engagement part, and when the locking part that stops the rotation of the arm is released, the arm rotates in a short time due to the spring, and the string holding part is near the bail. The end of the string is gripped by the bail. When the crank is rotated by linking the movement of the string held by the bale and pulled into the bale chamber with the deceleration box, the tip of the arm engaged with the crank rotates in an arc.

The movement of the arm is minimal before and after the dead center at the point where the center of the crank is located on the line connecting the connection point of the crank and arm and the connection point of the arm and arm.

amount If you can center the ball from above the line, the arm will move more.

If the arm tips are positioned close to both sides of the veil at the dead center position of the U point, the circular arc movement of the arm tips will cause the bail to
The amount of arm rotation decreases near ll, and the number of rotations increases near the center of the veil. A bracket to which a knife is fastened is fastened to the plate, and when the veil and the string held at the tip of the arm come into contact, the string is cut and the bowl stops.

The roll baler according to the first embodiment is attached to a three-point link of a tractor using a top link engagement plate 2 and a lower link pin 3 provided at the front of the body. A tractor output shaft and an input shaft 4 are connected to a universal join device 1B, and the harvested product is fed into a bale chamber 5A through an opening 5 of a roll baler and formed into a cylindrical bale by rotation of a roller 6. The rear part 7 of the bale chamber and the front part 8 of the bale chamber are pivoted at the same position as the pivot of the roller 6, and this pivot becomes the center of rotation of the rear part 7 of the bale chamber. A hydraulic cylinder 9 is suspended between the bale chamber rear section 7 and the bale chamber front section 8 to swing and raise the bale chamber rear section. 1
The seventh lever 10, which is a seventh lever attached to the upper part of the side wall of the front part of the bale chamber so as to be freely raised and lowered by rotation of the crank 11, is provided with a notch that engages with the third co-lever 10A. Since the notch contacts the contact part of the second lever 10A and further rises, the second lever 10A moves the pivot IGD protruding from the first bracket 10C fastened to the reduction box 10B to the front part of the center trap bale chamber. 911 wall direction (
force direction). The lower part of the second lever 10A is connected to the first lever 10C, which is pivoted on a shaft protruding from the first bracket 10C.
It is configured to be engaged with the hook 10E and disengaged by rotation of the 8g collever 10A. Reducer box 1
The crank 12 linked to the output shaft of 0B has a built-in one-way clutch, and when the 77th clutch 10E is released, the arm 14 rotates in the direction of the beam due to the tension of the tal spring 13, and is connected by the arm 12C. crank 12
A shaft is fixed to the lower part of the arm 14, which rotates upward.
A shaft for hooking one end of the first spring 13 is protruding from the lower end of the arm 4, and the other end of the first spring is hooked to the right side wall.The shaft fixed to the arm 14 extends between the left and right vertical walls. It is pivotally supported by a bracket fastened to a plate provided on the The tip of the arm holding the string 15 [dA is near the left wall of the roll baler when viewed from behind.

And - Since it is located near the contact point between the roll and the bale, the string 15
is held by the bale, taken into the bale N together with the circumference of the bale, and wound around the bale's circumferential wall. The string 15 stored in a string storage section provided at the front side of the bale chamber is wound around a pulley 17 via a first guide roller 16, and is further wound around a pulley 17, a first guide roller 16A, a third guide roller 16A, a third guide roller 16A, a third guide roller 16A, a third guide roller 16A, a second guide roller 16A, a second guide roller 16A, a second guide roller 16A, a second guide roller 16A, a third guide roller 16A, a second guide roller 16A, a third guide roller 16A, a third guide roller 16A, a second guide roller 16A, a second guide roller 16A, a second guide roller 16A, a second guide roller 16A, a second guide roller 16A, a second guide roller 16A, a second guide roller 16A, a second guide roller 16A, a second guide roller 16A, a second guide roller 16A, and a second guide roller 16A. Guide roller 16B
It is held by the arm tip 14A via the arm.

For this reason, the string 15 is held by the bale, and as the bale goes around, the string 15 moves and pulls the pulley 1.
7 rotates, the input shaft of the reduction box 10B to which the pulley 17 is connected rotates, and the crank 12 connected to the output shaft rotates upward, and the arm 14 rotates in the opposite direction to the veil. It is configured to move the position of the string 15 to be wrapped. Further, the deceleration box 10B is fastened to a bracket, and the bracket is fastened to the wall 911j.

The movement of the string 15 causes the crank 12 to rotate, and a cam 12A protruding from the crank 12 rotates the bar 1OA in the force direction. At this time, the arm tip 14
A is moving toward the right side wall of the fuselage, and the tension of the second spring 18 hooked to the arm 14 is decreasing, so the outer end is the first spring.
The seventh hook 10E is rotated in the evening direction by the third spring 19 which is engaged with the lever 10, so that the third lever 10A and the first hook 10E can be engaged with each other.

When the crank 12 further rotates and the tip 12B of the crank 12 moves the first lever 10 in two directions, the first lever 10
The engagement of the first colleper 10A is released, and the second colleper 10A is released.
A rotates in a direction opposite to the direction of force, and is configured so that the lower part of the collever 10A and the hook 10E engage with each other. The arm length of the crank 12 is determined so that the string 15 wraps around the veil from the left side of the rear view veil of the aircraft, and as the arm 14 rotates, the wrapping position moves to the right, and then moves in the opposite direction from near the right side wall. It is. The string 15 moves from the left side to the right side 1, and a knife 20 is provided along the way. The knife 20 is fastened to a second bracket 21 that is fastened approximately below the center of a plate provided between both extension walls. That is, the string 15 climbs over the outer wall 22 of the 82 bracket 21 and moves further to the right.

Eventually, the direction of movement changes to the left, and as the movement continues, a15, which is in semi-contact with the knife 20 and stretched between the arm tip 14A and the bail, is cut, and the rotation of the pulley 17 stops, and at the same time, the rotation of the crank 12 stops. The arm 14 is configured to stop its movement and rotation of the arm 14. At this time, since the flf, 2 lever 10A and the hook 10E are engaged, the arm 14 is
is configured to remain in a stopped state.

In this embodiment, the first lever 10 is actuated by a crank mechanism, but the pressure of the bale compressed in the bale chamber is detected by the force exerted on the securing portion between the front part of the bale chamber and the rear part of the bale chamber. It may be sensed by a sensor and actuated an electric cylinder to actuate the first lever 10, or it may be sensed by a sensor and actuated a hydraulic lever to actuate the first lever 1.
0 may be operated by a hydraulic cylinder.

The harvest picked up by the pick-up device 1B is fed into the bale chamber 5A through the opening 5 of the roll baler and formed into a cylindrical bale by the rotation of the roller 6, but when this bale reaches the appropriate size. The i/lever 10, which moves in conjunction with the crank when the crank 11 is rotated, is provided with a notch that engages with the second lever 10A, and the notch comes into contact with the abutting part of the second lever 10A. In order to further rise, the 82 lever 10A rotates in the direction of the side wall (force direction) of the front part of the bale chamber about the pivot 10D protruding from the seventh bracket 10C fastened to the reduction box 108.
The lower portion of 0A is engaged with a seventh hook 10E which is pivotally supported on a shaft protruding from the first bracket 10C, and is released from the engagement by rotation of the second lever 10A. Reducer box 10B
A one-way clutch is built into the crank 12 that is linked to the output shaft of the crank 12, and when the engagement of the seventh hook 10E is released, the arm 14 rotates in the direction of the beam due to the tension of the second spring 16, and is connected by the arm 12C. The crank 12 in the position rotates in the middle direction. A shaft is fixed to the lower part of the arm 14.
A shaft for hooking one end of the first spring 13 is protruding from the lower end, and the other end of the first spring is hooked to the right upper wall.The shaft fixed to the arm 14 is installed between the left and right side walls. It is pivotally supported by a bracket that is fastened to a fixed plate. The arm tip 14A holding the string 15 is located near the left side wall of the roll baler when viewed from the rear and near the contact point between the roll and the bale, so the string 15 is held by the bale and taken into the bale chamber together with the bale's circumference, and the bale is removed. It will be wrapped around the surrounding wall. The string 15 stored in a string storage section provided at the front side of the bale chamber is passed through a first guide roller 16 to a pulley 17.
It is further held by the arm tip 14A via an 82 guide roller 16A and a third guide roller 16B. For this reason, the string 15 is gripped by the bale, and as the bale goes around, the string 15 is pulled into the bale chamber by movement of the pulley 17.
rotates, the input shaft of the reduction box 10B to which the pulley 17 is connected rotates, and the crank 12 connected to the output shaft rotates in the middle direction, and the arm 14 rotates in the opposite direction to the bale. The position of the string 15 to be wrapped is moved.

The movement of the string 15 causes the crank 12 to rotate, and then a cam 12A protruding from the crank 12 rotates the second lever 10A in the force direction. At this time, the arm tip 14A is moving toward the right side wall of the fuselage, and the tension of the first spring 13, which is engaged with the arm 14, is decreasing. The seventh hook 10B is rotated in the opposite direction by the spring 19, and the second lever 10A and the hook 10E can be engaged with each other. Furthermore, the engagement between Coupler 10 and Collector IQA is released.

The collever 10A rotates in a direction opposite to the force direction.

The lower part of the second lever 10A and the hook 10E engage with each other. The string 15 wraps around the veil from the left side of the rear view veil of the aircraft, and as the arm 14 rotates, the string 15 moves to the right and moves in the opposite direction from near the right side wall using the crank 12.
Determine the arm length. The string 15 moves from left to right, and a knife 20 is provided along the way. As a result, the string 15 overcame the outer wall 22 of the third co-bracket 21 and moved further to the right - eventually the direction of movement changed to the left and as it continued to move, it came into contact with the knife 20 and was stretched between the arm tip 14A and the veil. When the string 15 is cut, the rotation of the pulley 17 is stopped, and at the same time, the rotation of the crank 12 and the rotation of the arm 14 are stopped.The arm 14 is maintained in a stopped state by the 8g, 2 spring 18.

C0 Effects of the Invention Since the present invention is configured as described above, the harvested product is supplied to the bale chamber, and a bale with a constant density is formed in the bale chamber, and a bale with an appropriate size for VC is formed. Later, when the operator operates the first bar 10, the string is automatically wrapped around the bale without having to keep putting the string into the bale chamber like in the past, and the string is automatically cut when the appropriate number of wraps have been wrapped. The action of one set of windings stops.

When starting to wind the string, the tip of the arm holding the string instantly moves to the optimal position for winding the string, minimizing the time required for winding the string, and wrapping the string tightly at both ends of the bale while wrapping it tightly in the middle. Because it has a loosely wound structure, it is possible to wrap the string in the best possible condition without causing problems such as deformation during post-processing of the bale after formation, and it is possible to wrap the string in unnecessary places. It is an efficient string winding mechanism that can be used in just one set, and has a structure that allows one worker to visually check the degree of bale formation if he or she wishes to do so.

[Brief explanation of drawings]

Figure 7 is a right side view showing the state at the time of starting operation,
The figure is a perspective view of the state in which the hook is disengaged and the arm is activated by the operation of the second collever, and Figure 3 shows the stage before the second lever is actuated by the cam and the hook engages with the lower part of the second collever. Fig. 4 is a perspective view illustrating the state in which the tip of the crank operates the first lever to release the engagement with the second collet (-).
The first collever swings downward, and the lower part of the first collever and the
FIG. 5 is a perspective view illustrating the state in which the hook is engaged, and FIG. 5 is a perspective view illustrating the effect that the position of the string wrapped around the veil moves as the arm moves, and the string is eventually cut by the knife. 1・・・・・・Roll baler, I B ,,=,,
Pick-up device t, sA,... Bale chamber-6.
...Roller 7...--Bale chamber rear part-8
・-・-Bale chamber front part-10... 1st and <
-, I Q A +++++++mth collection-・10B
-...Reduction box, 11...Crank-12
... Crank, 13, ..., 7th spring, 14-, ..., arm.

Claims (2)

[Claims] (1) In a roll baler equipped with a pick-up device in the front of the machine, a bale chamber in the machine body, and a string winding device for wrapping string around the bale, when the string winding device starts, the string winding device is instantly activated by a tensioned spring means, etc. A string winding device for a roll baler, characterized in that a string holding portion is located near the bale and is configured to wrap the string around the outer circumference of the bale. (2) In a roll baler equipped with a pick-up device at the front of the machine, a bale chamber in the machine, and a string winding device for wrapping string around the bale, the string holding portion of the string winding device is attached to both sides of the bale so that the string can be wound many times. A string winding device for a roll baler, characterized in that the string winding device for a roll baler is configured such that the number of string windings is reduced approximately at the center of the bale.