JPH0242104Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field The present invention relates to a roll baler that picks up collected materials such as cut down grass and threshed waste straw left in the field and compresses and packs them into rolled bales.

Prior Art A roll baler compresses and molds the collected material into a roll while rotating it in a cylindrical bale chamber.In order to notify the operator that the compression molding of the bale has been completed, a compression sensing device is provided. There is a bale completion notification device that notifies the bale completion by sounding a buzzer or lighting an indicator light when the bale is compressed to a predetermined pressure.

In a large roll baler, as described in Japanese Patent Application Laid-open No. 57-170114, the hydraulic cylinder that opens and closes the bale chamber also serves as a compression sensing device, and the material collected in the bale chamber is compressed and the bale is baled. It detects and alerts the back pressure applied to the hydraulic cylinder when a repulsive force tries to push the chamber open.

In addition, for small roll balers, Tokuko Sho 57-46806
As described in the publication, the notification is made by utilizing the fact that the tension sprocket of the endless chain that constitutes the arc-shaped bundling device in the bale chamber moves when the collected material is compressed.

Problems that the invention attempts to solve: When running a roll baler for collection work,
At normal working speeds, an appropriate amount of collected material is sent into the bale chamber one after another, and a sufficient rotational compression action is applied to the collected material, compressing the bale from within to an appropriate level of compression. When the bale speed increases, a large amount of collected material is rapidly sent into the bale chamber and it fills up, causing only the outer periphery to be compressed without the center of the bale being sufficiently compressed, or a large amount of collected material in the bale chamber being compressed in clumps. If this happens, the internal pressure in the bale chamber will temporarily increase while the amount of collection remains small, causing the bale completion notification device to malfunction. When this bale completion notification device is activated, the collection operation is immediately interrupted and the bale is taken out from the bale chamber, so the amount of collected material collected in one collection operation to form one bale is reduced. Even though the working speed is increased, the efficiency is not improved, and the formed bale becomes soft in the center and easily crumbles.

Means for solving the problem Therefore, the present invention is constructed as follows. That is, the pick-up device 2 is operated while the vehicle chassis 1 is running.
In a roll baler that takes collected material picked up from the ground into a bale chamber 3 and compresses it into a roll shape, a sensing device 4 is provided to sense that the collected material has been compressed to a predetermined pressure in the bale chamber 3. The bale completion notification operation by the sensing tool 4 is configured to be activated via a delay means 5 which delays the time from sensing to notification as the traveling speed increases.

Effect of the invention When collecting work is performed at a low working speed, when the bale is compressed to a predetermined pressure in the bale chamber, the sensing device 4 is activated to immediately notify the operator and stop the vehicle 1 from moving. However, when it comes to high-speed collection work,
Even when the sensing device 4 detects the completion of bale forming, the delay means 5 operates, and the vehicle platform 1 continues to run without immediately notifying that the compaction is completed with only a small amount of collected material, as in the conventional case. No notification is given until the collected material is sent into the bale chamber 3, which is substantially the same as in low-speed work, and after the notification is made, the bale is molded in an appropriate compressed state to the inside.

Effects of the invention As mentioned above, even if the traveling speed of the chassis 1 is increased,
The amount of material collected during the collection operation for taking out the bale is not reduced by the bale completion notification, and the formed bale can be sufficiently compressed.

Embodiments Next, embodiments of the present invention will be described with reference to the drawings.

A fixed machine frame 8 and a movable machine frame 9 are mounted on the front part of the vehicle chassis 1, which is equipped with a traveling device 7 consisting of a crawler 6. In the rear part above 1, there is a prime mover 10
A driving frame 11 is provided with a drive frame 11 having an interior therein.

The movable frame 9 is pivotally connected to the fixed frame 8 by a pivot 12, and when the handle 13 is rotated upward, the locking mechanism with the fixed frame 8 is released and the entire frame is rotated upward to release the internal veil. Chamber 3 is opened so that the packed roll bale can be taken out of the machine.

At the lower front of the fixed machine frame 8, there are a plurality of scraping rods 15 that protrude from the cylindrical body 14 at regular intervals in the lateral direction.
A pick-up device 2 is provided which rotates forward and upward as the cylindrical body 14 rotates to pick up collected items on the ground.

At the top of the drive frame 11, there are a side clutch lever 16 for controlling the traveling direction of the traveling device 7, and a traveling clutch lever 1 for intermittent power transmission to the traveling device 7.
7. A shift lever 19 for changing gears in the gearbox 18 of the traveling device 7, a working clutch lever 20 for intermittent power transmission from the prime mover 10 to the fixed machine frame 8 side, etc. are installed upright.

From the rear of the pick-up device 2 to the bale chamber 3
Main endless chains 23, 23 are stretched over sprockets 21, 22 provided at the front and rear of both sides of the fixed machine frame 8, and a large number of conveyor rods 24 are fixedly connected between the left and right main endless chains 23, 23. The conveyor device 25 is configured by horizontally suspending them at intervals. The main endless chains 23, 23 move in an arc shape within the bale chamber 3 along a curved chain rail 27 of a semicircular side wall plate 26 attached to the fixture frame 8.

Further, from the front end of this conveying device 25, the bale chamber 3
A sub endless chain 29 is stretched over the side of the fixed machine frame 8 along the main endless chain 23 below the inlet 28 of 30 is horizontally suspended within the spacing between the respective conveyor rods 24 to ensure that the collected material picked up by the pick-up device 2 is sent into the bale chamber 3.

Inside the movable machine frame 9 constituting the upper part of the bale chamber 3, there are sprockets 31 provided at the front and rear of both sides.
An endless chain 33 is stretched between the left and right endless chains 33, and a large number of transport rods 24 are horizontally hung at regular intervals between the left and right endless chains 33, 33 to form a bundling transport device 34.
It consists of The inside of the bail chamber 3 of this endless chain 33 moves in an arc along a chain rail 36 of a semicircular side wall plate 35 attached to the movable machine frame 9.

Reference numeral 37 denotes a tension ring for tensioning the endless chain 33. When the bale chamber 3 is filled with collected materials, the conveyor rod 24 inside the bale chamber 3 is pushed outward, and the tension ring 37 is tensioned inside. You will be moving in the direction.

The tension ring 37 is connected to the pivot shaft 38 of the movable machine frame 9.
It is rotatably attached to a mounting arm 39 that is pivotally supported on the mounting arm 39, and a projection piece 40 is fixed to the mounting arm 39, and the projection piece 40 is made to protrude outward from a long hole 42 provided in a machine wall 41. There is.

On the outside of the side wall 41, the sensing tool 4 is rotatably supported on the machine wall 41 by a shaft 43, intersecting the locus of movement of the projection piece 40. A tension spring 45 is hooked between the sensing tool 4 and the upper spring mounting member 44,
When the sensing device 4 is rotating toward the tension wheel 37, the stop piece 46 prevents the sensing device 4 from rotating, and the protruding piece 40 pushes the sensing device 4 at an appropriate angle, thereby causing automatic operation. In other words, the switch 47 is rotated toward the switch 47 provided on the opposite side, and the switch 47 is pressed.

As soon as the switch 47 is pressed, a buzzer, indicator light, etc. are activated to notify the operator that the bale has been compressed.

48 is a bolt that adjusts the timing of contact between the sensing tool 4 and the projection piece 40.

The delay means 5, which delays the notification operation of the sensing device 4 as the traveling speed of the chassis 1 is changed to a high speed, is constructed as follows.

The spring attachment member 44 is slidably fitted into a cylindrical body 49 attached to the machine wall 41, and connected by interposing a tension spring 51 between the end and a fixture 50 attached to the machine wall 41. and the other end and the rotating piece 5 of the gear shift lever 19
2 are connected by a wire 53.

Further, the rotating piece 52 of the gear shift lever 19 is connected to the gear shift lever 54 of the gearbox 18 and the wire 55.
The traveling device 7 travels at high speed as the shift lever 19 is rotated from the first gear position A to the second gear position B and then to the third gear position C.

Therefore, when the speed change lever 19 is rotated to the high speed side, the spring mounting position of the spring mounting member 44 moves, making it difficult for the sensing device 4 to rotate toward the switch 47, that is, to notify the bale compression. The timing will be delayed.

Although not shown, the sensing tool 4 always rotates back toward the tension wheel 37 at the start of bale forming.

In the above embodiment, the switch 47 of the sensing device 4
The timing of pressing is delayed by rotating the gear shift lever 19 toward the high speed side.
However, a variable timer is provided between the switch 19 and a notification device such as a buzzer or indicator light, and the time from the start of operation of this variable timer to the output is
A delay means 5 is configured by interlocking the speed change lever 19 and a variable timer such that the time is increased by rotating the speed change lever 19 toward the high speed side, and controls the time until the switch 47 is pressed and the notification device is activated. There is also a method.

When the compression of the bale is completed, the traveling device 7 is stopped and the twine is supplied into the bale chamber 3 and packed.
The movable machine frame 9 is rotated upward to open the bale chamber 3, and the bale is taken out manually.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, with FIG. 1 being a schematic diagram showing the interlocking state of the main parts, and FIG. 2 being a partially cutaway side view. 1... Vehicle chassis, 2... Pick-up device, 3...
Veil chamber, 4...sensing device, 5...delaying means.

Claims (1)

[Scope of utility model registration request] In a roll baler that takes collected materials picked up from the ground by a pick-up device 2 into a bale chamber 3 while running a vehicle platform 1 and compresses them into a roll shape, the collected materials are compressed to a predetermined pressure in the bale chamber 3. A sensing device 4 for sensing is provided, and the bale completion notification operation by the sensing device 4 is activated via a delay means 5 that delays the time from sensing to notification as the traveling speed increases. A bale forming sensing device for a roll baler is characterized by the following.