JPH0634416U - Vertical seedling feeder for transplanter - Google Patents

Abstract

(57) [Summary] (Corrected) [Purpose] Accurate vertical feeding of seedlings on the seedling table in the transplanter. [Structure] In the structure in which the vertical feed mechanism of the seedling tray is interlocked with the lateral feed mechanism of the seedling placing table to vertically feed the seedlings on the seedling placing table, the vertical feed mechanism of the vertical feeding mechanism is locked. A lock rotator 58 for stopping and fixing the vertical feed by engagement with the arm 50 is provided, and the lock rotator 58 is disengaged by interlocking with the lock rotator 58 at the end of the left and right lateral feed of the seedling table. The seedling tray is vertically fed by making it rotatable.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention is a seedling for a transplanter in which the vertical feeding mechanism of the seedling tray is interlocked with the horizontal feeding mechanism of the seedling placing table to vertically feed the seedlings on the seedling placing table at the end of the horizontal feeding of the seedling placing table. Regarding the vertical feed device.

[0002]

[Prior art]

 In this seedling vertical feed mechanism, the driving force from the vertical feed cam is transmitted to the follower cam shaft via the follower cam and one-way clutch to perform the vertical feed operation.

[0003]

[Problems to be solved by the device]

 In such a vertical feed mechanism, a vertical feed lock device is required in order to always maintain a constant vertical feed amount each time and hold the seedling placing table in a fixed position except during the vertical feed operation. However, this locking device has a drawback in that it has a complicated structure and cannot be installed compactly.

[0004]

[Means for Solving the Problems]

 Therefore, the present invention has a structure in which the vertical feed mechanism of the seedling tray is interlocked with the horizontal feed mechanism of the seedling placing table to vertically feed the seedlings on the seedling placing table. A lock rotator that stops and fixes the vertical feed by engaging with the lock arm is provided at the end of the left and right lateral feed of the seedling table, and the lock arm is disengaged to rotate the lock rotator. By vertically feeding the seedling tray in this way, even if there is a change in the vertical feed speed or the weight of the seedling tray, a certain amount of vertical feed is always secured, and during the horizontal feeding operation of the seedling stand, The seedling tray is securely held so that it cannot be moved vertically to improve planting accuracy.

[0005]

Embodiment An embodiment of the present invention will be described below in detail with reference to the drawings. FIG. 1 is an explanatory view of a vertical feed lock device, FIG. 2 is an overall side view of the transplanter, and FIG. 3 is an overall plan view of the same. Is a transmission case connected to the rear end of the frame (1), and (4) is a left and right traveling drive wheel supported by the transmission case (3) so as to be vertically swingable via a left and right transmission case (5). Wheels, (6) are left and right front wheels supported on the front end side of the front frame (1) so as to be vertically swingable through an axle frame (7), and (8) is a chassis frame () behind the mission case (3). 9) is a seedling feeding device installed via (9), and (10) is a seedling planting device installed between the left and right rear wheels (4) in the mission case (3) via a planting transmission case (11), ( 12) is a compression roller for suppressing the ridge (A), (13) is the seedling plant It is a gauge wheel that supports the device (10) so as to be able to swing up and down, and a pot seedling for one strain from the seedling tray (15) on the seedling table (14) that reciprocates left and right in the seedling supply device (8). Is taken out by the seedling take-out nails (16), and the taken-out pot seedlings are moved up and down in conjunction with the multi-cutter (17) of the above-mentioned seedling planting device (10) to a hopper type planting nail (18). It is configured to be discharged and supplied so that pot seedlings are planted, that is, transplanted at regular intervals on the ridge surface (A) of the machine body by operating the steering handle (19).

In addition, (20) is an elevating lever, (21) is a planting clutch lever, (22) is a main shift lever, (23) is a stock shift lever, (24) is a planting depth adjusting lever, and (2) 5) are left and right side clutch levers.

As shown in FIGS. 4 to 6, the seedling feeding device (8) laterally feeds driving force from the mission case (3) to the seedling extraction drive shaft (27) via a transmission chain (26). The drive case (28) is fixed to the right side frame (29b) of the chassis frame (9) and has a transverse feed drive mechanism (28a) in the case (28). The left side frame (29a) bearing Longitudinal feed drive shaft having one end supported by the case (30) The other end of the shaft (31) is supported by the case (28), and a pair of reduction gears (32) (33) are provided between the shafts (27) (31). And a pair of intermittent gears (35) (36) and a lateral feed stop cam (37) (38) on the lateral feed drive shaft (34) which is horizontally mounted between the lower parts of the cases (28) and (30). ) ・ Counter shaft (39) ・ Replacement The drive shaft (27) is interlocked with each other through a pair of horizontal feed switching gears (40) (41) so that the drive shaft (27) can feed the vertical feed and the horizontal feed drive shafts (31) (34) respectively. It is configured to rotate.

Further, as shown in FIGS. 7 to 8, the seedling feeding device (8) includes a left side plate (42) outside of the left and right side plates (42) (43) on both sides of a lower part of the seedling stand (14) and a left side plate (42). 42) A seedling vertical feed drive mechanism (45), which is a seedling vertical feed mechanism, is provided between pivot plates (44) fixed at the outer side with a fixed interval, and fixed to the drive shaft (31). The constantly feeding vertical feed operation members (46a) (46b) and the same pivot shaft (47) between the plates (42) and (44) are rotatably supported at their base ends so that the seedling table (14) can be supported. ) A longitudinal feed cam (49) and an operating plate (50a) for the lock arm (50), each of which has an intermediate portion in contact with the operating shaft (48) of the operating member (46a) or (46b) at the end of the horizontal movement of The follower cam shaft (51) between the plates (42) and (44) has a one-way clutch (52) and a cylinder shaft (5). And a follower cam (56) for engaging the engaging groove (56a) with the rotor (55) at the tip of the swing arm (54) supported via the pivot shaft (47) and supported through the follower cam shaft (47). A disk-shaped lock rotating body (58) for engaging a lock engaging pin (57) integrally fixed to (51) and protrudingly provided on a side surface with a tip of a lock arm (50); Two sets of continuously meshing vertical feed transmission gears (59) (60) and (61) (62) with different gear ratios which are interlocked with the camshaft (51) and a vertical feed drive sprocket (63) The spline cylinder shaft (65) that idle-supports the feed sprocket shaft (64) and the inner gear (60a) (60a) of the driven-side transmission gears (60) (62) that idle-support the spline cylinder shaft (65). 62a) two outer gears (66a) (66b) that mesh with A switching gear (66) slidably fitted in the axial direction with the cylindrical shaft (65), and a disc integrally connected to the cylindrical shaft (65) at the outer end of the sprocket shaft (64). A phase adjusting plate (69) for interlockingly connecting the sprocket shaft (64) to the (67) via a phase adjusting bolt (68) and the outer gears (66a) (66b) of the switching gear (66). ) Is connected to the internal gears (60a) (62a) through a shifter (70) in a freely switchable manner, and a gear shift switching lever (71) is provided, and a pivotal plate (72) and a pivoting plate (72) are provided at the upper end of the seedling stand (14). The vertical feed pin (76) of the vertical feed chain (75) which is stretched between the idle sprocket (74) supported by the sprocket shaft (73) and the drive sprocket (63) is attached to the seedling tray (15). Engage in the depression between each cell (15a) bottom While the tray (15) is vertically fed, the outer lever (66a) or (66b) of the switching gear (66) is changed to either one of the inner gear (60a) or (62a) by the switching lever (71). When meshing, it is set to a low speed or a high speed to adjust the vertical feed amount according to the type (25 mm square or 30 mm square) of the seedling tray (15).

By the way, as also shown in FIGS. 1 and 8, the lock arm (50) is supported integrally with the operation plate (50a) on the pivot shaft (47) so that the base end of the lock arm (50) is swingable. When the arm (50) and the operation plate (50a) are in the transverse feed movement of 14), the rotation regulating plate (77) is brought into contact with and held by the stopper (79) by the force of the tension spring (78). The bent abutting portion (50b) at the tip of the lock arm (50) is provided so as to abut from the rotation direction side of the one engaging pin (57), and the rotating body (58) is provided with the lock arm (50). ) It is configured to lock so that it cannot rotate.

Then, at the left and right lateral feed ends of the seedling mounting table (14), the operation plate (50a) is rotated by the operation shaft (48) as shown by the phantom line in FIG. 1, and the lock arm (50) is moved. When the contact part (50b) is released from the engagement pin (57) and unlocked, the rotating body (58) is brought into a free rotation state, and immediately thereafter, the operation shaft (48) is contacted with the vertical feed cam (49). The follower cam (56) is rotated by a certain angle to carry out vertical feed for one cell (15a), which is one pitch of the seedling tray (15), while operating the operating shaft (48) immediately before the end of this vertical feed. The lock arm (50) is returned to the original lock position by releasing the engagement with the plate (50a), and the position of the engagement pin (57) is regulated next time.

On the other hand, as shown in FIG. 6, an extension seedling stand (14a) is provided on the upper end of the slope of the seedling placing table (14), and the seedling placing table (14) and the extension seedling stand (14a) are provided on the upper surface. A plate-shaped tray guide guide (14b) is provided upright between the substantially left and right centers, and the guide (14b) regulates the bottom center of the seedling tray (15) supplied on these stands (14) (14a). By doing so, the seedling tray (15) can be accurately and easily supplied. The guide guide (14b) may have a triangular pyramid shape with a tapered upper end.

This embodiment is configured as described above, and the seedling take-out pawl (16) and the seedling pushing pin are synchronized with each other from the vertical direction of the seedling tray (15) during the lateral feeding operation of the seedling placing table (14). All the seedlings are taken out. When the outer gear (66a) of the switching gear (66) is engaged with the inner gear (60a) by operating the lever (71), the vertical feed amount is small at low speed ( When the outer gear (66b) is meshed with the inner gear (62a), the vertical feed amount is changed to a large vertical feed amount (30 mm square) at a high speed to perform the vertical feed operation.

Further, since the vertical feed of the seedling tray (15) is to interlock the vertical feed drive mechanism (45) with the horizontal feed drive mechanism (28a), the seedling tray (which is always accurately synchronized with the horizontal feed ( The vertical feed of (15) is performed to ensure the vertical feed at each end of the horizontal feed of the seedling placing table (14), and the lock arm ( The vertical feed of the seedling tray (15) is surely stopped and held by the lock of the 50) and the lock rotator (58), and the seedling taking-out claws (16) accurately take out the seedlings.

Therefore, in the case of this vertical feed lock device, the vertical feed drive mechanism (45) is economically constructed by a simple combination of the lock arm (50) and the disk-shaped lock rotating body (58). Can be installed compactly.

In FIG. 9, the above-described lock rotor (58) is provided in the gear-shaped lock rotor (80), and the lock arm (81) is provided in the lock groove (80a) formed on the outer periphery of the rotor (80). ) Is engaged with the positioning roller (82) to lock the vertical feed operation. The center of the lock arm (81) is swingably supported by the pivot shaft (83), and the vertical feed cam shaft is supported. When the other end of the lock arm (81) is brought into contact with the roller (85) of the lock release cam (84) attached to the drive shaft (31) to be swung against the tension spring (86), The follower cam (51) that supports the roller (88) of the vertical feed cam (87), which releases the engagement of the roller (82) and immediately rotates integrally with the release cam (84), on the follower cam shaft (51). 89) abut one pitch When the follower cam (89) is released from the engagement with the roller (85) immediately before the end of the rotation of the follower cam (89) while the lock arm (81) is returned to the original position, The roller (82) is engaged with the lock groove (80a) for the next time to lock again at this position. Further, an overrun prevention claw portion (81a) bent to the side of the rotating body (80) at about 90 degrees is integrally formed on the other end side of the lock arm (81), and the rotating body by the cam (89) is formed. By the time the rotation of (80) is completed by one pitch, the engagement pin (1 pitch = one vertical feed amount) projecting on the side surface of the rotating body (80) with the cam shaft (51) as a center is projected. 90) of the rotating body (80) is returned to the position of a predetermined pin (90) to prevent overrun of the rotating body (80) so that the roller (82) can accurately and surely position the rotating body (80). It is configured to be possible.

[0016]

[Effect of device]

 As is apparent from the above embodiments, according to the present invention, the lateral feeding mechanism (28a) of the seedling placing table (14) is interlocked with the vertical feeding mechanism (45) of the seedling tray (15) to interlock the seedling placing table (14). ) In the structure for vertically feeding the above seedlings, a lock rotor for stopping and fixing the vertical feed by engaging the lock arms (50) (81) with the vertical feed transmission system of the vertical feed mechanism (45). (58) (80) are provided, and the lock arm (50) (81) is disengaged at the end of the left and right lateral feed of the seedling placing table (14), and the lock rotating body (58) (80) is released. ) Can be rotated to vertically feed the seedling tray (15). Therefore, even if the vertical feeding speed or the weight of the seedling tray (15) is changed by an extremely simple construction means. There is always a certain amount of It is possible to secure the feeding, and moreover, during the lateral feeding operation of the seedling placing table (14), the seedling tray (15) can be reliably fixedly held so that the seedling tray (15) cannot be vertically moved, and the planting accuracy can be stably maintained. Has a remarkable effect.

[Brief description of drawings]

FIG. 1 is an explanatory diagram of a vertical feed lock device.

FIG. 2 is an overall side view of a transplanter.

FIG. 3 is an overall plan view of the transplanter.

FIG. 4 is a side view of a seedling stand part.

FIG. 5 is an explanatory plan view of a seedling stand part.

FIG. 6 is a front explanatory view of a seedling table.

FIG. 7 is a side view illustrating a vertical feeding unit.

FIG. 8 is an explanatory plan view of a vertical feeding unit.

FIG. 9 is an explanatory diagram showing another modified structure example of vertical feeding.

[Explanation of symbols]

 (14) Seedling stand (15) Seedling tray (28a) Horizontal feed mechanism (45) Vertical feed mechanism (50) (81) Lock arm (58) (80) Lock rotating body

Claims (1)

[Scope of utility model registration request] 1. A structure in which a vertical feeding mechanism of a seedling tray is interlockingly connected to a lateral feeding mechanism of a seedling placing table to vertically feed the seedlings on the seedling placing table, and a vertical feed transmission system of the vertical feeding mechanism. A lock rotator for stopping and fixing the vertical feed by engagement with the lock arm is provided, and the lock rotator can be rotated by releasing the engagement of the lock arm in conjunction with the end of the lateral feed of the seedling table. A vertical seedling feeding device for a transplanter, which is configured so as to vertically feed the seedling tray.