JPH0576258U - Automatic poly sheet cutting and feeding device for mobile agricultural machinery - Google Patents

Abstract

(57) [Abstract] [Purpose] It is an object of the present invention to provide a ridge and poly sheet feeding device using a mechanized mobile agricultural machine, which can simplify the work. [Structure] A center pipe 28, which is attached to the rear of the main body of the mobile agricultural machine and is movable in the vertical and horizontal directions, and a motor 34 supported at the center pipe 28 and arranged at one end thereof to hold the poly sheet 12a. And a drive shaft 33 provided with a pull-out roll 41 and a brake roll 45 for feeding out, and arranged in the vicinity of the drive shaft 33. A drive force is transmitted from the drive shaft 33 to rotate. Driven shaft 38 on which a roll sheet for feeding the poly sheet is supported
And a linear heating element 51 for cutting the poly sheet 12a held between the pull-out roll 41 and the brake roll 45 and fed out for a predetermined length. I am doing it.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention is an automatic poly sheet for simultaneously carrying out the ridge-raising work as a cultivating floor when cultivating vegetables or potatoes using a mobile agricultural machine and the work of coating the obtained cultivating floor with a poly sheet. The present invention relates to a cutting and feeding device.

[0002]

[Prior Art]

 Generally, ridges such as vegetables and taro and the work of feeding out polysheets and soiling are performed at the same time by using a tractor or a mobile agricultural machine such as a management machine. An example of the agricultural machine 50 is shown. That is, the frame 3 is disposed behind the agricultural machine main body 2 equipped with the wheels 1, and the rotary case 4 is mounted in the middle of the frame 3. The rotary case 4 is internally provided with power transmission means such as a sprocket, a chain, and a bearing, and the rotational force is transmitted to the rotor 6 via the drive shaft 5.

Further, a T-type support 7 is connected to the rear of the frame 3, and a pair of left and right molding plates 8, 8 are arranged below the T-type support 7, while a T-type support 7 is provided. A center support 9 is connected to the upper part of the belt 7, and a metal fitting 10 is slidably fitted to the center support 9 and a lower end portion of a metal fitting 11 supported vertically adjustable with respect to the metal fitting 10. The roll sheet 12 is attached to the. The left and right sides of the roll sheet 12 are supported by support pipes 11 a fixed to the metal fitting 11 and springs 13 and 13. An L-shaped support rod 15 is inserted through a guide pipe 14 fixed to the rear end of the center support 9, and the guide roll 16 of the roll sheet 12 is attached to the lower end of the support rod 15. There is.

The tip ends of the side arms 22 and 22 are fixed to the upper portions of the molding plates 8 and 8 with bolts and the like, and the equal pressure wheels 18 and 18 are provided in the middle portions of the side arms 22 and 22. The side disks 20, 20 are supported by the angled self-supporting metal fittings 21, 21 behind the equal pressure wheels 18, 18. The sheet 12a led out from the roll sheet 12 is fed backward while being guided by the guide roll 16 and the constant pressure wheel 18.

With such a configuration, when the engine is started and the agricultural machine main body 2 is advanced in the front F direction shown in FIG. 3, the driving force of the engine is generated by the sprocket, chain, The rotor 6 is transmitted to the rotor 6 based on the action of a power transmission means such as a bearing, the rotor 6 is rotated, and the soil is piled up in the form of a pile, and then by the shaping action of the forming plates 8 and 8 located behind the rotor 6. Erecting is performed.

At this time, the roll sheet 12 is in a state in which pressure is applied to the left and right sides by the support pipe 11a and the springs 13 and 13, and the poly sheet 12a pulled out from the roll sheet 12 is the side roll 16a. From the front side, it is fed to the lower part of the constant pressure wheel 18, and while being pressed by the constant pressure wheel 18, the soiling work is performed by the side disks 20, 20. FIG. 6 is a cross-sectional view of the portion covered with the poly sheet 12a.

[0007]

[Problems to be solved by the device]

 However, in such a conventional ridge and policy feeding device using a mechanized mobile agricultural machine, there is a problem that many parts depend on the manual work of the worker and a complicated operation is required. That is, in the case of the management machine, since the ridge work is performed while walking, the pull-out length of the poly sheet 12a is short, but in the case of the tractor, the work is performed when the mobile agricultural machine 50 is stopped by the clutch or the like. It is necessary for a person to get off once and move to the rear of the forming plate 8 and manually pull out the poly sheet 12a corresponding to the distance between the wheel 1 and the side disc 20 while turning the guide roll 16 by hand, and further pull out the poly sheet 12a. Must be cut with a hook or other cutting tool. Repeating such work makes the work itself troublesome and imposes a great physical and mental burden on the worker.

Therefore, the present invention solves the problem of such a conventional mobile agricultural machine, and simultaneously performs the ridge work and the poly sheet feeding and cutting work without depending on the manual work of the operator. By doing so, it is an object of the present invention to provide a device capable of simplifying the work.

[0009]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, the present invention is equipped with a rotor for performing a ridge work for forming a cultivation bed by a driving force of a power source at the rear of a mobile agricultural machine body, and is provided integrally with the agricultural machine body. In a configuration of a mobile agricultural machine equipped with a mechanism for covering a cultivation floor with a poly sheet, a center pipe installed behind the mobile agricultural machine body so as to be movable vertically and horizontally, and the center pipe. A drive shaft having a pull-out roll and a brake roll for holding and feeding out the poly sheet, and a motor provided at one end of the drive shaft, and a drive shaft located near the drive shaft. A driven shaft provided with a roll sheet for transmitting the driving force from the drive shaft to rotate and feeding the poly sheet; It is the structure of poly sheet automatic cutting and feeding device in out rolls and is sandwiched between the brake roll formed by and a linear heating element for cutting a predetermined length repeatedly out policy preparative mobile agricultural machinery.

The brake roll is fitted to a lower end portion of a support rod fixed to a lower portion of a guide pipe attached to the center pipe, and the support rod has a force for constantly pulling out the brake roll to the roll side. A pair of annular bodies having supporting pins protruding in the vertical direction are fitted to the drive shaft located outside the drawer roll by providing a biased spring means. A linear heating element is stretched between them, and a cam that pushes the support pin in the direction of the poly sheet in response to the rotational force of the motor is provided, and the linear heating element is normally attached to the one support pin. At this time, the spring means is provided so as to apply a force in the direction of separating from the poly sheet.

[0011]

According to this configuration, the ridge-raising mechanism performs the ridge-raising work as the cultivation floor while moving the mobile agricultural machine body, and in this state, the operator operates the drive shaft motor by the switch operation. , The leading edge of the poly sheet unrolled from the roll sheet is sequentially pulled out while the state of being held between the pull roll and the brake roll is maintained. At this time, the brake roll is pressed against the pull-out roll side by the biasing force of the spring.

In this state, when the poly sheet is pulled out by a certain length, the driving of the motor is stopped and the motor for operating the linear heating element is started, and at the same time, the linear heating element is energized. The cam is rotated by the driving force of the motor, and the support pin is pushed by this cam. This pushing force causes the linear heating element stretched between the support pins to contact the poly sheet, and this heat causes The poly sheet is cut. By restarting the motor of the drive shaft after cutting the policy, it is possible to put the leading edge of the poly sheet cut in the previous process between the drawer roll and the brake roll and return to the original work posture. Become.

[0013]

【Example】

 An embodiment of the ridger device according to the present invention will be described below in detail with reference to the drawings, in which the same components as those in the conventional configuration are designated by the same reference numerals. In the configuration shown in FIG. 1, 9 is a center support, and the center support 9 is connected to the upper part of the T-type support 7 arranged at the rear of the agricultural machine body in FIG. A cross fitting 25 is attached to the center support 9 at a substantially central portion so as to be movable left and right by a bolt 26a, and a support rod 27 is attached to the cross fitting 25 so as to be movable up and down by a bolt 26b. The center pipe 28 is fixed to the lower end of the support rod 27.

Slide frames 29, 29 are slidably fastened to the left and right sides of the center pipe 28 by bolts 30, 30. Supports 31 and 31 are arranged at the tips of the slide frames 29 and 29 so as to hold a shape extending obliquely rearward, and a first bearing having a built-in bearing is provided at the lower tip of the supports 31 and 31. Holders 32, 32 are fixed. A drive shaft 33 is rotatably inserted into and supported by the first holders 32, 32, and pull-out rolls 41, 41 are fixed at appropriate positions in the central direction of the drive shaft 33.

A motor 34 is provided at one end of the drive shaft 33, and electric power obtained from a power source (not shown) is supplied to the motor 34. Further, sprockets 35, 35 are fixed to a drive shaft 33 located near the first holders 32, 32. The second holders 37, 37 are fixed to the lower end portions of the supports 36, 36 extending downward from the left and right ends of the center pipe 28. A driven shaft 38 is rotatably inserted into and supported by the second holders 37, 37.

Reference numeral 12 denotes a roll sheet, and the roll sheet 12 is supported with the driven shaft 38 inserted therein. Further, sprockets 39, 39 are fixed near both ends of the driven shaft 38, and chains 40, 40 are stretched between the sprockets 39, 39 and the sprockets 35, 35. Reference numeral 12a is a poly sheet unrolled from the roll sheet 12, and the poly sheet 12a is pulled out downward while being in contact with the pull-out rolls 41, 41 fixed to the drive shaft 33. Reference numeral 16 is a guide roll which is attached to a support rod (not shown) and controls the posture of the poly sheet 12a.

Further, guide pipes 42 and 43 are attached to the center pipe 28, and an upper end portion 44a of a support rod 44 is fixed to a lower portion of one guide pipe 42, and a lower end portion 44b of the support rod 44 is It is bent in the horizontal direction, and brake rolls 45, 45 are rotatably fitted to the horizontal portion. A substantially U-shaped plate 46 is fixed to the upper surface of the other guide tube 43, and a spring 48 biased in the pulling direction is provided between the plate 46 and the plate 47 fixed to the guide tube 42. Has been inserted. Therefore, the brake rolls 45, 45 are constantly pressed against the pull-out rolls 41, 41 by the biasing force of the spring 48.

Further, annular members 49, 49 having supporting pins 49a, 49b protruding in the vertical direction are fitted to appropriate portions of the drive shaft 33 located outside the pull-out rolls 41, 41. A spring 50 biased in the pulling direction is inserted between the support pin 49a of FIG. A linear heating element 51 such as nichrome is stretched between the pair of support pins 49a, 49a, and electric power obtained from a power source (not shown) is supplied to the linear heating element 51. Due to the tensile force of the spring 50, the linear heating element 51 is normally urged in a direction away from the poly sheet 12a.

On the other hand, 52 is a motor supported by the slide frame 29 by a support member (not shown), and an annular cam 53 is fixed to the output shaft of the motor 52. A pin 53a is provided so as to project from an end edge portion of the cam 53, and the pin 53a is set so as to be in a position where it can abut on the support pin 49b. The motor 53 and the cam 53 provided with the pin 53a are provided on both sides of the poly sheet 12a (only one side is shown in the drawing).

The operation of this embodiment having such a configuration will be described below. That is, the engine is started to advance the mobile agricultural machine to perform a predetermined ridge work, and in this state, the worker operates the hand switch to start the motor 34 first. At this time, the leading end of the poly sheet 12a is set in a state of being inserted between the pull-out roll 41 and the brake roll 45 as shown in the figure.

Then, the drive force of the motor 34 causes the drive shaft 33 to rotate in the direction of arrow A, that is, in the clockwise direction in the drawing, so that the pull-out rolls 41 and 41 fixed to the drive shaft 33 and the brake rolls 45 and 45 are fixed. The poly sheet 12a is sequentially fed out from the roll sheet 12 while keeping the state where the poly sheet 12a is held between them. At this time, the brake rolls 45, 45 are pressed against the pull-out rolls 41, 41 by the urging force of the springs 48, 48 in the pulling direction, and hold the poly sheet 12a in a stable state.

In this state, when the poly sheet 12a is pulled out by a certain length, the operator operates the hand switch to stop the driving of the motor 34, and operates the other hand switches to operate both sides of the poly sheet 12a. The linear heating element 51 is energized at the same time when the motor 52 arranged in the above is started. Then, as shown in the partially enlarged view of FIG. 2, the cam 53 rotates in the direction of arrow A, that is, the counterclockwise direction in the drawing, by the driving force of the motor 52, and is fixed to the end portion of the cam 53. The pin 53a pushed pushes the lower part of the support pin 49b.

Due to this pushing force, the annular body 49 fitted to the drive shaft 33 rotates clockwise, and the support pin 49 a falls clockwise against the urging force of the spring 50. The linear heating element 51 stretched between the support pin 49a on the side abuts the poly sheet 12a, and the heat cuts the poly sheet 12a.

Next, when the driving of the motor 52 is stopped, the linear heat generating body 51 returns to its original posture due to the urging force of the spring 50, and the motor 34 is restarted here, so that the driving force of the motor 34 is changed. It is transmitted to the driven shaft 38 by the sprocket 35, the chain 40, and the sprocket 39. With the rotation of the driven shaft 38, the leading end of the poly sheet 12a cut in the previous step is pulled out by the pull-out roll 41 and the brake roller. By entering the space between the bases 45 and stopping the driving of the motor 34, the original work state is restored.

Although the drawer roll 41 is arranged below the poly sheet 12a in the above embodiment, the same effect can be obtained by disposing the drawer roll 41 and the linear heating element 51 above the poly sheet 12a. .. Further, the motor 34 may be provided on the feeding mechanism side of the poly sheet 12a.

[0026]

[Effects of the Invention] As described in detail above, the following operational effects are brought about by using the automatic poly sheet cutting and feeding device in the mobile agricultural machine according to the present invention. That is, while the moving agricultural machine body is performing the ridge work as the cultivation floor, the motor of the drive shaft is started by the operator's switch operation, so that the tip end of the poly sheet unwound from the roll sheet is pulled out. It is drawn out sequentially while being held between the roller and the brake roll, and after the poly sheet is drawn out for a certain length, the motor on the side of the linear heating element is started and at the same time the linear heating element is energized. By doing so, the linear heating element comes into contact with the poly sheet based on the cam mechanism, and the poly sheet can be cut.

Therefore, in the present invention, by performing the ridge work and the poly sheet feeding and cutting work simultaneously and semi-automatically, it is troublesome to perform the poly sheet feeding operation by the conventional mechanized mobile agricultural machine and the cutting by the blade. There is a great effect that the work is eliminated, the physical and mental burden on the worker is reduced, and the work can be simplified.

[Brief description of drawings]

FIG. 1 is a perspective view showing a main part of a poly sheet automatic cutting and feeding device in a mobile agricultural machine according to the present invention.

FIG. 2 is a partially enlarged perspective view of FIG.

FIG. 3 is a front view showing an example of a conventional mobile agricultural machine.

FIG. 4 is a right side view of FIG.

5 is a top view of FIG.

FIG. 6 is a cross-sectional view of a portion covered with a conventional poly sheet.

[Explanation of symbols]

 9 ... Center support 12 ... Roll sheet 16 ... Guide roll 25 ... Cross fitting 28 ... Center pipe 29 ... Slide frame 32 ... First holder 33 ... Drive shaft 34, 52 ... Motor 35, 39 ... Sprocket 38 ... Driven shaft 40 ... Chain 41 ... Draw roll 42, 43 ... Guide tube 45 ... Brake roll 48, 50 ... Spring 49 ... Annular body 49a, 49b ... Support pin 51 ... Linear heating element 53 ... Cam

Claims (3)

[Scope of utility model registration request] 1. A rotor for performing a ridged work for forming a cultivation bed by a driving force of a power source is attached to the rear of the mobile agricultural machine body, and a poly sheet is attached to the obtained cultivation bed integrally with the agricultural machine body. In a configuration of a mobile agricultural machine provided with a mechanism for carrying out the work of covering, a center pipe installed at the rear of the mobile agricultural machine main body so as to be movable vertically and horizontally, and one end supported by the center pipe. A drive shaft provided with a motor and a pull-out roll for holding and feeding out the poly sheet and a brake roll, and a drive shaft provided at a position in the vicinity of the drive shaft and provided with a driving force from the drive shaft. Is transmitted and rotated, and the driven shaft supporting the roll sheet for feeding out the poly sheet, the pull-out roll and the brake roll are supported. Poly sheet automatic cutting and feeding device in a mobile agricultural machine is characterized in that it is clamped formed by and a linear heating element for cutting a predetermined length fed-out poly sheet between. 2. The brake roll is fitted to a lower end portion of a support rod fixed to a lower portion of a guide pipe attached to a center pipe, and a force for constantly pushing the brake roll to the roll side is applied to the support rod. The automatic poly-sheet cutting and feeding device in a mobile agricultural machine according to claim 1, wherein a biased spring means is provided. 3. A pair of annular bodies having support pins protruding vertically are fitted to a drive shaft located outside the drawer roll, and a linear heating element is stretched between the pair of annular bodies. And a cam that pushes the support pin in the direction of the poly sheet in response to the rotational force of the motor, and a direction in which the linear heating element normally moves away from the poly sheet on the one support pin. 2. The automatic poly sheet cutting and feeding device in a mobile agricultural machine according to claim 1, further comprising spring means urged by the force.