JPH074106B2 - Straw bundling device - Google Patents

Description

TECHNICAL FIELD The present invention relates to a straw bundling device which is installed in a rear part of a combine so as to bind threshing-treated straw.

"Prior Art" Japanese Patent Laid-Open No. 56-78522 discloses a means for interlocking and connecting a handle depth adjusting device for a threshing supply grain culm and a straw stock source control guide frame that aligns the straw stock base with wires. It is in.

"Problems to be solved by the invention" However, in the case of the above means, the grain culm (straw) transportation time from the handling depth adjusting device to the stock regulation control guide frame is not compensated and immediately follows. However, the regulation guide frame has a drawback that proper stock regulation cannot be carried out and hunting occurs. Also, since the guide frame moves to the tip side as much as possible when the handling depth adjusting device is stored on the deep handling side at the end of work, if it is a long culm at the beginning of the next process, the guide frame is moved to the stocker side. There was a drawback that the stray stock of Straw was bent around the guide frame or wrapped around the guide frame because the movement adjustment of could not be made in time.

"Means for Solving the Problems" Therefore, the present invention provides a vertical conveyance adjusting mechanism for adjusting the handling depth of the harvested culm and a stock adjusting plate adjusting mechanism of a binding machine for binding the threshed straw. In the interlocking structure, an aligning plate actuating delay element for actuating the aligning plate adjusting mechanism is provided after a predetermined time has passed after the operation of the vertical conveying adjusting mechanism, and when the harvested culm is exhausted or the vertical convey is moved to the storage position. It is provided with an interlocking element that positions the aligning plate closer to the base of the stock when pressed.

[Operation] Therefore, according to the present invention, the aligning plate can be adjusted in accordance with the actual length of the drainage culm passing through the position of the aligning plate, and accurate bundling adapted to each culm length can be performed. At the beginning of cutting in the next process, since the aligning plate is located at the long culm position near the root of the stock, even if the straw is conveyed to the binding machine, this straw interferes with the aligning plate and stagnates, causing a jam accident. A good bundling work can be started without bending or winding the straw.

[Example] Hereinafter, an example of the present invention will be described in detail with reference to the drawings.

FIG. 1 is an explanatory plan view of a binding portion, FIG. 2 is an overall side view of a combine, and FIG. 3 is a plan view of the combine. ,
(3) is a machine stand that is supported on the track frame (1) via a rotation fulcrum shaft (4) and an elevating cylinder (5), and (6) is a handling cylinder () on which a feed chain (7) is stretched on the left side. 8) built-in threshing section, (9) a mowing section provided with a cutting blade (10) and a grain culm transport mechanism (11), (12) a straw cutting section provided behind the threshing section (6), 13) is a paddy tank for holding the grains taken out from the threshing section (6) through the fried cylinder (14), (15) is an engine for driving each part of the combine, (16) is a driver's seat (17) and It is a driver's cab provided with a driving operation unit (18), and is configured to continuously mow grain culms and thresh.

As shown in FIG. 4, the grain culm transport mechanism (11) of the mowing section (9) includes a vertical transport chain (19) which is a vertical transport, and cuts the culm grain with the cutting blade (10). The chain (19) is formed so as to be conveyed to the starting end of the feed chain (7), and the vertical conveyance chain (19) is swingably supported about the handling depth adjustment fulcrum (20). (19) Feed chain at the end (7)
It is formed so as to be brought into contact with and separated from the starting end to adjust the handling depth. A hydraulic cylinder (2
The piston rod (22) of 1) is connected to the vertical transport chain (19), and limit switches (23) (24) for detecting the end of advance / retreat of the piston rod (22) are provided. A hydraulic pump (25) is connected to the hydraulic cylinder (21) via a 3-position 4-port electromagnetic hydraulic switching valve (28) having solenoids (26) (27).

Furthermore, a grain culm sensor (29) is provided near the chain (19) in the middle of the grain culm conveying path from the reaping section (9) to the threshing section (6).
In addition to the above, the neutralization and deep handling sensors (31) (32), which are handling depth sensors, are provided in the handling mouth (30) of the threshing unit (6), and based on these sensors (29) (31) (32) The hydraulic cylinder (21) is controlled to adjust the handling depth.

As shown in FIGS. 1 and 5 to 6, a straw binding unit (33a) having a binding device (33) as a binding device is provided on the rear side of the threshing unit (6), and the binding is performed. A straw chain (34) for selectively feeding the straw to the machine (33) or the straw cutting part (12) is provided, and is inherited from the feed chain (19) to the straw chain (34). The discharged straw is fed to the straw cutting section (12) or the straw binding machine (33).

The binding machine (33) includes a clutch door (35) for stopping the movement of the straw at the binding position, a packer (36) for focusing and compressing the straw, and a needle (37) for winding a string around the straw bundle. And a binding mission case (38), and a transmission case (39) above the mission case (38).
A knotting device (41) having a discharge arm (40), etc.
Is supported, and after the binding is completed, the bound bundle is discharged to the outside of the machine by the discharge arm (40).

Further, the binding machine (33) has a rear portion to the binding frame (42),
Further, the front part is slidably supported by a guide frame (43) fixed to the bundling frame (42), and linked to a bundling adjustment motor (44), which is a bundling position adjusting element, through a gear transmission mechanism (45). By connecting the binding machine (33) to the rotating screw shaft (46) via the coupling member (47) and moving the binding machine (33) left and right by the forward and reverse rotation drive of the motor (44), The bundling machine (33) is configured to adjust the bundling position left and right.

Further, a stocker alignment plate (48) is provided on the left side of the binding frame (42), and a transport deck for guiding and holding straw from below is provided between the alignment plate (48) and the binding machine (33). 49) and auxiliary deck (50). The upper surface of the rotating roll (52) faces the center of the deck (49) through the opening (51), and when the roll (52) is rotated by the driving force of the motor (53), the roll (52) is rotated. The straw that comes into contact with the upper surface of the plant is moved in the direction of the aligning plate (48) so that its root comes into contact with the aligning plate (48). Furthermore, the auxiliary deck (50) is integrally connected to the horizontal feed case (54) for moving and adjusting the aligning plate (48) left and right, and the auxiliary frame (42) is attached to the rear portion of the horizontal feed case (54). And the guide frame (43) supports the front end of the L-shaped auxiliary deck (50), and the frame (42).
The hexagonal shaft (55) provided on the line connecting the (43) is formed in a three-point support structure for supporting the front part of the transverse feed case (54). Then, the transverse feed case (54) is connected to the aligning plate adjusting motor (56) which is the stock aligning plate adjusting mechanism via the rotary screw shaft (57), and is aligned by the forward and reverse driving of the motor (56). The board (48) and the auxiliary deck (50) are configured to move and adjust left and right.

The aligning plate (48) is horizontally swingably supported by the transverse feed case (54) through a rotation fulcrum shaft (58) and is rotatable by the case (54) and a hexagonal shaft (55). The fixed arm (61) of the fulcrum shaft (58) is connected to the swing link (59) of the case (54) fitted to the shaft via the rod (60), and the input of the straw cutting part (12) is performed. A pair of reduction gears (63) (6) on the cutter shaft (62a) of the high-speed cutter (62)
4) Cutter shaft (65a) of low speed cutter (65)
The tip end of a swing plate (69) for fixing the base end to the hexagonal shaft (55) is connected to the gear (64) via an eccentric shaft (66), a rod (67) and a connecting plate (68). , Gears (64)
When the rod (67) is rotated, the aligning plate (48) is reciprocally swung about the fulcrum shaft (58).

Reference numeral (70) is a binding and picking roll provided at the rear of the straw chain (34).

FIG. 7 shows a position control circuit for the vertical conveying chain (19) and the aligning plate (48), which is provided with a main switch (72) for applying a power source (71) and an opening switch for the grain stem sensor (29). (29a), the deep sensor (27) is connected to the main switch (72) through the close switch (31a) of the neutral sensor (31) and the limit switch (24), and the switch (29a) and the neutral sensor ( The shallow handle solenoid (26) is connected to the main switch (72) via the open switch (31b) of (31), the open switch (32a) of the deep handling sensor (32), and the limit switch (23).

Further, timers (73) (74) which are aligning plate actuation delay elements for outputting the solenoids (26) (27) for a certain time after the solenoids (26) (27) are turned on are turned on for the respective solenoids (26). (27) and a parallel circuit.

Further, the potentiometer type vertical transfer position sensor (75) for detecting the position of the vertical transfer chain (19) which is moved and adjusted by the hydraulic cylinder (21) and the position of the aligning plate (48) which is horizontally moved by the motor (56) are set. A potentiometer type alignment plate position sensor (76) for detection is provided, and a comparison circuit (77) for detecting and outputting the displacement difference is provided, and an operation controller (78) for adjusting the displacement difference is provided as the sensor. A position difference (positional deviation) larger than that set by the adjuster (78) occurred between the vertical transport chain (19) and the aligning plate (48) provided between the (76) and the comparison circuit (77). At this time, the comparison circuit (77) is provided so as to output a difference signal.

Further, a timer switch (73a) (74a) (74a) connected to the main switch (72) through the switch (29a) and turned on by an output signal of each timer (73) (74).
a) and a switch circuit (79) (80) connected to the comparison circuit (77), respectively, for operating the relay switches (81a) (82a) for operating the motor (56) in the forward and reverse directions. ) (82) to long culm and short culm limit (83)
The switch circuit (79) (80) is connected via (84), and when the difference signal is output from the comparison circuit (77) when the timer switch (73a) or (74a) is turned on, the motor (56) is provided so as to drive in the forward or reverse direction.

Further, the timer (85) is connected to the main switch (72) via the close switch (29b) of the grain culm sensor (29) which is an interlocking element, and the timer (85) is turned on by turning on the close switch (29b). ), A timer switch (85a) (85b) that turns on after a certain time in
And the long culm side limit switch (83) and between the switches (24) and (72) respectively, and when the grain culm sensor (29) no longer detects the grain culm, the vertical transfer chain (19 ) Is moved to the storage position on the deepest handling side (arrow direction in FIG. 4a), and the aligning plate (48) is moved to the longest culm side (direction in FIG. 1b) closest to the stock base. ing.

This embodiment is configured as described above, and when performing continuous mowing and threshing work, the mowing grain culm (A) whose culm is cut by the cutting blade (10) is fed by the vertical transport chain (19) to the feed chain ( 7) It is conveyed to the starting end, and when the main switch (72) is turned on, the cut culm supplied to the starting end of the feed chain (7) is transferred to the culm sensor (2).
9) and the culm length is detected by the sensors (31) (32), the solenoids (26) (27) are selectively excited to operate the switching valve (28) appropriately, and the hydraulic cylinder (21). ), The piston rod (22) is moved back and forth to swing and displace the chain (19), and the handling depth is automatically adjusted.
Further, at this time, after a certain period of time has passed since the solenoids (26) (27) have been excited (approximately the time width during which the grain culms are conveyed from the sensor (31) (32) positions to the aligning plate (48) positions) The motor (56) is driven in the forward and reverse directions according to the amount of movement of the transport chain (19), and the aligning plate (48) is adjusted to move left and right to adapt to the actual length of straw culm at this binding position. The stock aligning operation is performed by the aligned plates (48).

When the grain culm sensor (29) no longer detects grain culm, such as at the end of work, the aligning plate (48) moves toward the most root (direction of FIG. 1b) and starts cutting in the next step. This prevents interference between the straw and the alignment plate (48).

The vertical transport chain (19) and the aligning plate (48) may be mechanically linked to each other in the same manner as in the above embodiment, and the aligning plate (48) may be mechanically or It may be configured to be electrically linked. Further, when the vertical transport chain (19) or the handling depth adjusting lever is at the deepest handling position (the chain (19) is in the stored state), the aligning plate (48) may be moved to the most stock position.
Further, even when the stock positions are not aligned during manual handling, the stock aligning plate is located at the most stock position so that the straw does not bend due to interference with the stock plate.

[Advantages of the Invention] As is clear from the above embodiments, the present invention provides a vertical transport adjusting mechanism (21) for adjusting the handling depth of a harvested culm and a binding machine (33) for binding the threshed straw. In the structure for interlocking with the stock plate aligning plate adjusting mechanism (56), the aligning plate actuating delay element (73) for actuating the aligning plate adjusting mechanism (56) after a predetermined time has passed after the operation of the vertical conveyance adjusting mechanism (21). ) (74), and when the harvested culms are gone or the vertical transport (19) is moved and adjusted to the storage position, the aligning plate (48).
Since the interlocking element (29b) for locating the sprocket is located near the root of the stock, the alignment plate (48) can be adjusted according to the actual length of the straw culm passing through the alignment plate position. Accurate bundling suitable for each culm length can be performed, and even when straw is conveyed to the tying machine (33) because the aligning plate (48) is at the long culm position near the root of the stock at the start of cutting in the next process. The straw is interfered with by the aligning plate (48) and becomes stagnant, resulting in a remarkable effect such that a good binding work can be started without causing an accident such as clogging and bending or winding of the straw.

[Brief description of drawings]

1 is a plan view of the binding unit, FIG. 2 is an overall side view of the combine, FIG. 3 is the same plan view, FIG. 4 is an explanatory view of a vertical transport unit, and FIG. 5 is a side view of the binding unit. FIG. 6 is a rear view of the same, and FIG. 7 is a control circuit diagram. (19) …… Vertical transport (21) …… Vertical transport adjustment mechanism (29b) …… Interlocking element (33) …… Binding machine (48) …… Alignment plate (56) …… Alignment plate adjustment mechanism (73) ( 74) ... delay element

 ─────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-56-78522 (JP, A) JP-A-57-159421 (JP, A) Practical application Sho-58-107709 (JP, U)

Claims (1)

[Claims] Claim: What is claimed is: 1. A structure for interlocking a vertical conveyance adjusting mechanism for adjusting a handling depth of a cut grain culm and a stock aligning plate adjusting mechanism of a binding machine for binding the threshed straw, wherein the vertical conveyance adjusting mechanism. After a predetermined time has passed after the operation of, the aligning plate actuating delay element for activating the aligning plate adjusting mechanism is provided, and the aligning plate is the most original when the harvested culm is exhausted or the vertical conveyance is moved and adjusted to the storage position. A straw bundling device characterized in that an interlocking element that is positioned closer to it is provided.