JP2507730Y2 - Movement control device of binding machine in combine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial application] The present invention relates to a movement control device for a binding machine provided in a combine.

[Problems to be Solved by Prior Art and Invention] Generally, in this type of combine, a binding machine for binding threshing-treated stem culms every predetermined amount and discharging the culms to the outside of the machine may be provided. By the way, since there are various stem culms having various culm lengths, in the case of threshing treatment, the handling depth is adjusted so that the tip portion is inserted into the threshing portion handling chamber in a preferable state. As a result, there is a problem in that the position of the end of the stem culm discharged from the threshing unit on the side of the base of the plant is displaced, and thus when the culm is bound by a fixed binding machine, the binding position varies depending on the stalk.

In view of this, there is a conventional one in which the binding machine is configured to be movable in the culm direction. And in this case, the movement of the binding machine,
From the point of view of automation, it is necessary to automatically perform the operation according to the supplied stem culms, and therefore, it is necessary to detect whether or not the binding machine is located at the proper binding position for the supplied stem culms. However, it is proposed to automatically control the movement of the binding machine.

To this end, a binding position detection means is provided in the binding machine, and movement control of the binding machine may be performed based on the binding position detection by the detection means.
When the initial setting of the binding machine position is largely deviated, there is a fear that the binding machine may not move to the proper position in time and a binding error may occur.

On the other hand, the culm length of the stem culm is detected at an early stage before it is supplied to the binding machine, and the position movement control of the binding machine is performed in accordance with this, so that even if there is a large deviation in the initial setting, the binding It is advisable to avoid the problem that the aircraft does not move to the proper position in time. However, in this case, the stem culm whose culm length has been detected has a large time lag until it reaches the tying machine, and as a result, movement control of the tying machine is not performed accurately, and accurate stalk and tying is performed. There is a problem that is difficult.

[Means for Solving the Problems] The present invention has been made in view of the above circumstances, and was devised with the object of providing a movement control device for a binding machine in a combine that can eliminate these drawbacks. In a combine in which a binding device for binding the stem culms discharged from the threshing unit mounted on the traveling machine body is movably provided in the stem culm direction by driving the drive means, a drive for controlling the drive of the drive means To the control unit, the stem culm supply detection means provided in the binding machine to detect whether or not the culm is supplied to the tying machine, and to detect whether or not the tying machine is located at an appropriate bundling position. The binding position detection means provided on the binding machine, and the culm length detection means provided on the traveling machine body side to detect the culm length of the culm before the culm is supplied to the binding machine, each detection signal is detected. Connect to type In addition, the drive control unit outputs the drive control command to the driving means to the binding machine position at the binding machine position obtained from the detection result of the culm length detection means when the stalk supply detection means is in the stalk non-detection state. When the stem culm supply detecting means detects the stem culm, the drive control command output means for switching the output to position the binding machine at a low speed at the binding machine position obtained from the detection result of the binding position detecting means. It is characterized by being provided.

The present invention, with this configuration, enables highly accurate stem-culm bundling regardless of the initial setting stage and the work continuation stage.

[Embodiment] Next, an embodiment of the present invention will be described with reference to the drawings.
In the drawings, reference numeral 1 denotes a combine traveling machine, and the traveling machine body 1 comprises a pre-processing unit 2 for cutting stem culms, a threshing unit 3 for threshing the cut stalks, and a threshed stem. It is the same as the conventional one that it is constituted by the member devices such as the binding machine 4 for binding the culms and the crawler type traveling device 5.

A pair of front and rear guide rails 6, 7 are provided at the rear of the traveling body 1.
Are integrally provided, and front and rear brackets 8 and 8a projecting from the binding machine case 4a are respectively attached to the front and rear guide rails 6 and 7 so as to be movable in the left and right directions. Reference numeral 9 denotes a drive motor (corresponding to the drive means of the present invention) having a speed reduction mechanism 9a, which is integrally assembled to the traveling machine body 1 side. The output shaft 9b of the drive motor 9 is provided.
Is screwed into the binding machine case 4a, and the drive motor 9
Is configured to move the binding machine 4 from side to side by driving in the forward and reverse directions.

One end of the connecting rod 10 (the end on the side of the culm tip) is integrally fixed to the bracket 8, and the connecting rod is
The other end (end of the stem stalk) on the other side of 10 penetrates slidably in the rail direction (horizontal direction) into a movable body 11 provided slidably on the guide rail 6, and is tightened by a tightening knob 12. It is fastened loosely. A support pin 11a is provided on the movable body 11 so as to project downward.
1a has a root-aligning plate in which a bullet 13 is inserted between the movable body 11 and the movable body 11.
14 base ends are swingably supported.

On the other hand, reference numeral 15 denotes a scraping carrier arranged on the stalk culm supply side of the binding machine 4, which conveys the stalk culms discharged from the threshing unit 3 toward the rear cut land side. The stem culm conveyed to the terminal end is positively supplied to the binding machine 4 side by the scraping operation of the tines 15a.
A bracket 18 is integrally fixed to a frame 17 for supporting the movable member 11 at a position facing the movable body 11, and the bracket 18 is provided with a position detecting sensor 19 of the binding machine. That is, the sensor arm of this binding machine position detection sensor 19
19a is interlocked by a pin 19b with a link 20 provided on the bracket 18 so as to swing in a concentric relationship with the swing support shaft of the sensor arm 19a. A long hole 20 at the tip of the link 20
a is bored, and a pin 11b protruding from the movable body 11 is swingably engaged with the elongated hole 20a. Then, as described above, when the binding machine 4 is moved left and right based on the motor drive, the movable body 11 is also moved integrally with the movement of the binding machine 4, which appears as a change in the swing angle of the link 20. ,
This is configured to be detected by the binding machine position detection sensor 19.

Reference numerals 21 and 22 denote first and second binding position detection sensors (constituting the binding position detection means of the present invention, which are provided at the tip of a bracket 23 projecting from the binding machine case 4a toward the stem culm root side. However, both of the sensors 21 and 22 come into contact with the root portion of the stem culm supplied to the binding machine 4 to perform the detection operation. Further, 24 is a detection sensor that is attached to the bracket 15b provided on the scraping conveyance body 15 and performs a detection operation by abutting on the stalk, and the detection sensor 24 is
It is configured as a stem culm supply detection sensor (constituting stalk culm supply detection means of the present invention) for detecting the presence or absence of stem culm supplied to the binding machine 4 by the operation of the scraping carrier 15.

On the other hand, 25 is a handle depth adjusting lever, and the operator operates the handle depth adjusting lever 25 to the long culm side or the short culm side as necessary, so that the stem culm cut by the pretreatment unit 2 is removed. Lifting carrier 26 for receiving and lifting and transporting toward the threshing unit 3 side
The stem culm receiving posture is changed to adjust the handling depth of the stalks supplied to the threshing unit 3, and the lever position of the handling depth adjusting lever 25, that is, the cut stalks A culm length detection sensor (which constitutes the culm length detection means of the present invention) 27 is provided at an early stage before the culm length is supplied to the binding machine 4.

Next, regarding the movement control procedure of the binding machine 4 based on the sensor operation of each of these sensors 19, 21, 22, 24, 27,
An explanation will be given based on a block circuit diagram and a flow chart. As shown in the block circuit diagram, each of the sensors is connected so as to output its detection signal to a drive control unit 28 configured by using a microcomputer. The drive control unit 28 will be described later. As described above, command output means is provided for outputting forward and reverse drive control commands to the drive motor 9 based on these input detection signals.

As a procedure for the drive control unit 28 to output a drive control command,
First of all, the system starts the binding machine movement control routine by operating the work (mowing) clutch lever 29 to the entry position. Then, in this device, it is determined whether the stem culm is being supplied to the binding machine 4 by the detection operation of the stem culm supply detection sensor 24. When the stem culm supply detection sensor 24 determines that the stem culm is not detected (at the beginning of the work), the detection value of the culm length detection sensor 27 and the detection value of the binding machine position detection sensor 19 are equal to each other. Be compared. When it is determined that both detection values match within the range of the dead zone set in advance, it is determined that the position of the binding machine 3 is at the preferable position in this state, and the drive motor 9 remains stopped. However, when it is determined that the detection value on the culm length detection sensor 27 side is large, that is, the binding machine 4 is biased toward the tip side too much, the binding motor 4 is set to the drive motor 9. A high-speed drive command is output to move the to the stock side. On the contrary, when it is determined that the detection value on the culm length detection sensor 27 side is small, that is, the binding machine 4 is too biased toward the stocker side, the binding motor 4 is moved to the tip of the drive motor 9. A high-speed drive command is output to move to the side and the binding machine 4
The movement control at high speed is performed.

On the other hand, as the cutting work progresses, the stem culm supply detection sensor 24
If it is judged that the stem has come to the state of detecting culm, this time,
The stem-culm detection states of the first bundling position detection sensor 21 on the tip side and the second bundling position detection sensor 22 on the stocker side provided on the bundling machine 4 are determined. As the pattern, when the first bundling position detection sensor 21 is in the stem culm detection state and the second bundling position detection sensor 22 is in the stalk culm non-detection state, the stalks are supplied to the binding machine 4 in a preferable posture, and Although it is determined that the stems are bound, the drive motor 9 is maintained in a stopped state. However, when both the detection sensors 21 and 22 are in the stem culm detection state, the stems are biased toward the plant side. It is determined that the binding machine 4 is being supplied to the binding machine 4 in such a state that a low speed drive command is output to the drive motor 9 so as to move the binding machine 4 to the stocker side. If both are in the state of not detecting stem culm,
It is judged that the stems are being supplied to the binding machine 4 in a state of being biased toward the tip side, and a low speed drive command is output to the drive motor 9 so as to move the binding machine 4 to the tip side. The movement control of the binding machine 4 at low speed is performed so that the end of the culm on the stock base side is located between the detection sensors 21 and 22.

In the embodiment of the present invention constructed as described above, the binding machine 4 moves in the left-right direction with respect to the machine body, that is, in the crucible direction by the forward and reverse drive of the drive motor 9 as described above. , As in the beginning of the work, the stem culm is bound by the binding machine 4.
The culm length detection sensor 27
The binding machine 4 is controlled to move to the proper position based on the detection result of 1) and waits until the stem culm is supplied.

Then, the cutting work progresses and the stem culms are scraped into the stem culms and conveyed.
Therefore, when the stem culm supply detection sensor 24 detects the supply stem culm at the stage of being supplied to the binding machine 4, this time, the movement control of the binding machine 4 detects the first and second binding positions. Sensor 2
It will be switched to the one based on the detection result by 1, 22.

Thus, in the embodiment of the present invention, the movement control of the binding machine 4 is performed from the initial setting position at an early stage when the stem culms are not yet supplied to the binding machine 4 as at the beginning of the work. When the movement control is performed to a position corresponding to the culm length, and when the culm is actually supplied to the binding machine 4, the movement control of the binding machine 4 is performed by the binding position detection sensor 21 provided in the binding machine 4. , 22 will be carried out directly. Therefore, even when the initial set position is largely deviated, the binding machine 4 moves to a position matched with the culm length at an early stage before the supply of stem culms, and the tying machine 4 It is possible to avoid such a problem that the binding machine 4 does not move in time and a binding failure occurs, such as a movement control that waits for the detection of stem culm immediately before being supplied to the machine 4.

Moreover, the binding machine 4 is at the stage when the stem culms are actually supplied,
As described above, based on the detection of the culm length detection sensor 27, the first movement is made directly by the first and second binding position detection sensors 21 and 22 provided in the binding machine 4 from the state of being moved to the predetermined position in advance. Since the control is performed, it is not necessary to consider the time lag until the currently detected stem culm is supplied to the binding machine 4, unlike the case of the movement control using only the culm length detection sensor 27. It enables fine and precise movement control,
The binding positions can be neatly aligned.

Moreover, in this type, the binding machine movement control is performed at a high speed before the stems are supplied to the binding machine 4, and the binding machine movement control is performed at a low speed when the stems are supplied. There is. Therefore, at the beginning of the work, it is possible to set the position of the binding machine 4 quickly, and it is possible to avoid a problem that the movement of the binding machine is delayed in the case of high speed cutting traveling, and When the stem culms are being supplied to the tying machine 4, the tying machine 4 is gently moved to avoid the problem that the stem and culm groups that form one culm bundle are bundled in an irregular state, High-precision stalk-and-bundle binding will be achieved.

Needless to say, the present invention is not limited to the above-described embodiment. For example, the culm length of stem stems is detected before the stems are supplied to the bundling machine. The means does not perform the swing angle detection of the handling depth adjusting lever, but can also perform the handling depth automatically.

[Effects and Effects] In short, since the present invention is configured as described above, the binding machine is provided on the traveling machine body side in front of the binding machine at the work start stage when the stems have not yet reached the binding machine. When the culm feed detecting means detects that the culm is actually fed to the bundling machine, the drive is performed after the movement to the position corresponding to the culm length detected by the culm length detecting means is performed in advance. The control command is switched from the one based on the culm length detecting means to the one based on the bundling position detecting means, and direct position movement control of the binding machine is performed at high speed with high stability.

As a result, the bundling position detection means is provided at a position as close as possible to the bundling part of the bundling machine, and although the bundling can be performed with high accuracy, there is a large deviation in the initial setting position of the bundling machine at the beginning of the work, This large deviation is corrected at a high speed in advance in the process of transporting the traveling culm before the culm reaches the binding machine, the binding position is detected too close, and the movement of the binding machine is too late, It is possible to prevent the distance from becoming too far and the error in the bundling position to be large, and the highly accurate bundling work can be performed from the beginning of the work.

[Brief description of drawings]

1 is a plan view of a combine, FIG. 2 is a side view of a binding base, and FIG. 3 is the same as the above. Fig. 4 is a plan view, Fig. 4 is an enlarged plan view of the same as above, Fig. 5 is an operation explanatory view showing a handling depth adjusting state, Fig. 6 is a front view of a main portion showing a handling depth adjusting lever portion, and Fig. 7 is a block circuit. FIG. 8 is a flow chart showing the control procedure. In the figure, 1 is a traveling machine body, 2 is a pre-processing unit, 4 is a binding machine, 9 is a drive motor, 19, 21, 22, 24 and 27 are detection sensors, and 28 is a drive control unit.

Claims (1)

(57) [Scope of utility model registration request] 1. A combine in which a binding machine for binding the stem culms discharged from a threshing section mounted on a traveling machine body is provided movably in the culm direction of the stem by driving the driving means. A stem control supply detection means provided in the binding machine to detect whether or not the culm is supplied to the binding machine to the drive control section for performing drive control, and whether the tying machine is located at an appropriate binding position. A bundling position detection means provided in the binding machine to detect whether or not, and a culm length detection means provided on the traveling machine body side to detect the culm length of the culm at a stage before the culm is supplied to the binding machine, In addition to connecting so that each detection signal is input, the drive control unit also outputs the drive control command output to the drive means from the detection result of the culm length detection means when the stalk culm supply detection means is in the stalk non-detection state. Raise the binding machine to the desired binding machine position. When the stem culm supply detecting means detects the stem culm, the drive control command output means for switching the output to position the binding machine at a low speed at the binding machine position obtained from the detection result of the binding position detecting means. A movement control device for a binding machine in a combine characterized by being provided.