JPH0445483Y2 - - Google Patents

Description

[Detailed explanation of the invention] "Industrial application field" This invention picks up grass, straw, etc. scattered in the field in a pick-up section and forms it into rolled bales on the upper and lower conveyors of the bale forming chamber. Regarding roll balers.

"Prior art" Previously, Utility Model Application No. 58-139046 and Utility Model Application No. 59-
As shown in the publications of No. 166639, there was a technique for forming roll-shaped bales using a conveyor.

``Problems to be solved by the invention'' In the above-mentioned conventional technology, since the conveyor was stretched by providing a tension roller, the conveyor was prone to wave motion due to irregularities on the circumference of the bale, causing mechanical vibrations and noise. cannot be easily reduced, and the hardness and size of the bale tend to be uneven.
Furthermore, since the bale formation state was detected by directly detecting the amount of displacement of the conveyor surface on which the bale was formed, there were structural and functional problems such as improper detection of the bale finishing time.

``Means for Solving the Problems'' However, the present invention is directed to a roll baler that collects straw picked up at the pick-up section in front of the lower pipe conveyor into a roll between the upper and lower pipe conveyors to form a bale. , a chain guide for tensioning and supporting the endless chain of the upper pipe conveyor is provided, and the rear part of the chain guide is provided so as to be movable upward by the bale forming pressure using the front part of the chain guide as a fulcrum; This system is characterized in that a veil formation indicator that moves in conjunction with the movement protrudes from the side cover to the outside of the machine.

``Function'' Therefore, by supporting the upper pipe conveyor in tension with the chain guide, it is possible to easily prevent the conveyor from undulating, thereby reducing mechanical vibration and noise, and making the hardness and size of the bales uniform. In addition, since the display body is linked to the chain guide, the operator can easily check the finished condition of the bale from outside the machine through the display body. It is possible to easily prevent malfunctions and simplify the structure, and it is also possible to easily improve handling and operability compared to the past.

"Embodiment" An embodiment of the present invention will be described below in detail based on the drawings.

Figure 1 is an explanatory diagram of the main parts, Figure 2 is an overall side view,
FIG. 3 is a plan view of the same, and in the figure, 1 is a machine base having a traveling crawler 2, 3 is a baler section mounted on the machine base 1, and 4 is a pick-up pump installed movably up and down in front of the baler section. A pickup section 6 having a swinger 5 is installed at the rear of the machine base 1 and the engine 7
Reference numeral 8 denotes an operating section having an operation panel 9 disposed at the left and right center of the machine body behind the engine section 6, and the baler section 3 is an upper and lower conveyor for bale formation. The operation panel 9 includes a travel lever 14, left and right side clutch levers 15, 15, and a gear shift clutch lever 16.
has.

The chain guide 17 that supports the upper pipe conveyor 10 has its front end supported swingably on a drive sprocket shaft 18, and its rear end supported on an idler shaft 1.
It is provided so that it can be moved upward integrally with 9. The chain guide 17 is interlocked with a side door 21 that opens the left side of the bale forming chamber 20 via a conveyor link mechanism 22, and as shown in FIGS. side door 21
A rotating arm 24 integrally fixed to a rotating fulcrum shaft 23 of
A rod 25 is connected to the arm 24 so that its attachment length can be adjusted, and the base end is swingably supported by the baler side plate 3a via a shaft 26, and the tip is connected to the other end of the rod 25 via a pin 27. swing plate 28
, a connecting plate 30 whose lower end is connected to the swing plate 28 via a pin 29, and a rotation fulcrum shaft 3 of the side plate 3a.
1, a swinging arm 33 whose base end is swingably supported and whose distal end is connected to the upper end of the connecting plate 30 via a shaft 32;
a swinging arm 34 whose base end is fixed to 1; and a connecting plate 3 whose one end is connected to the arm 34 via a pin 35.
6, and a bearing member 37 at the rear end of the chain guide 17.
a guide connecting plate 39 whose base end is fixed to and whose distal end is connected to the other end of the connecting plate 36 via a pin 38; and a bale compression spring 40 stretched between the shaft 32 of the connecting plate 30 such that the spring pressure can be adjusted freely. When the door 21 is closed, the upper pipe conveyor 1 is
The rear end of the door 21 is held in the downward movement position, and the spring 40 is
It is configured to move the rear end of the upper pipe conveyor 10 upward by a certain angle β to the upper open position against the force.

The spring 40 has its lower end connected to the eccentric shaft 41 of the connecting plate 30,
The upper end is connected to the shaft 32 via an adjustment bolt 42, and the eccentric shaft 41 is rotatably supported by a fixed piece 43 of the connecting plate 30, and the force of the spring 40 can be adjusted in multiple stages by operating the handle 44. It is configured to obtain.

Further, the connecting plate 30 is provided with a bail pressure detection switch 45 on the connecting and fixing plate 46, which detects when the diameter of the bale A reaches a certain finished diameter or more by the contact pressure on the outer periphery.
A switch operating member 48 that is rotatably attached via the
The actuator 4 of the switch 45
5a, and a stop bolt 49 attached to the operating member 48 so as to be able to freely adjust its protrusion length is brought into contact with the working surface of the swing arm 33, and a support over-spring 50 is inserted between the connecting plate 30 and the operating member 48. When the upper pipe conveyor 10 is in the normal downward movement state, the spring 50 pulls the operating member 48 clockwise to keep the switch 45 off, but when the diameter of the bale A exceeds a certain level and the bale A comes into contact with the When the upper pipe conveyor 10 opens upward at a certain angle α around the shaft 18 due to pressure, the shaft 32 of the swinging arm 33 is moved upward along the long hole 51 of the connecting plate 30 around the shaft 31, The operating member 48 is rotated counterclockwise via the bolt 49 to move the spring 50 beyond the fulcrum with respect to the shaft 47, and at this time, the operating member 48 causes the actuator 4 of the switch 45 to be rotated.
5a is pressed to turn on the switch 45 and drive the alarm device to notify the operator that the formation of the bale A has been completed.

Furthermore, a stopper pin 52, which is a switch regulating member, is provided protruding from the side plate 3a, and when the operating member 48 crosses the fulcrum in the counterclockwise direction, the operating member 48 is brought into contact with the pin 52 and retained in its position. It has been set up for the purpose of Further, the operating member 48
The rear end extension 48a is inserted into the guide groove 5 of the rear cover 53.
The cover 53 is made to protrude rearward from the extension part 48a, and when the door 21 is opened and closed, the on/off status of the switch 45 is confirmed at the vertical position of this extension part 48a. It is configured to perform a reset. The pin 52 also rotates the operating member 48 clockwise to reset the switch 45 when the upper pipe conveyor 10 moves upward to the upper open position.

As is clear from the above, in the roll baler that collects the straw picked up by the pick-up section 4 in front of the lower pipe conveyor 17 in a roll shape between the upper and lower pipe conveyors 16 and 17 to form the bale A, the upper pipe A chain guide 20 is provided to stretch and support the endless chain 21 of the conveyor 16,
The rear part of the chain guide 20 is provided so as to be movable upward by the veil A forming pressure using the front part of the chain guide 20 as a fulcrum, and an operation member 48 which is a bale formation indicator that is linked to the upward movement of the chain guide 20 A rear end extension 48a of the rear end extends from the side cover 53 to the outside of the machine.

As shown in FIGS. 7 to 8, the side door 2
1 is connected to a bale extrusion plate 56, which is a bale extrusion device, through a bale extrusion link mechanism 55, and the link mechanism 55 includes an L-shaped rotating arm 57 integrally fixed to the fulcrum shaft 23, and the arm. 5
7, and a first diaphragm whose base end is swingably supported by a fixed shaft 59 of the base frame 1a, and whose tip is connected to the other end of the rod 58 through a pin 60 and a long hole 61. 62, a second swing plate 63 supported integrally with the swing plate 62 on the shaft 59, and a third swing plate 63 whose base end is swingably supported on the base frame 1a via a rotating shaft 64.
A swinging plate 65, a rod 66 that connects the swinging plates 63 and 65 in a length-adjustable manner, and a rod 66 that is swingably supported by two parallel guide rods 67 and 67 and attached to the tip of the swinging plate 65. It consists of a sliding body 69 whose one side is connected via a connecting plate 68, and a connecting member 71 whose one side is fixed to the back surface of the extrusion plate 56 and whose other side is detachably attached to the sliding body 69 via a bolt 70, It is configured such that the extrusion operation of the extrusion plate 56 is performed after the second half of the opening of the door 21 when the elongated hole 61 does not act. The extrusion plate 56 is normally stored in the storage groove 73 of the right side wall 72 of the bale forming chamber 20, so that the surface of the right side wall 72 and the working surface of the extrusion plate 56 are substantially the same plane.

As shown in FIG. 9, an alarm buzzer 74 and an alarm lamp 75, which are alarm devices, are connected to a power source 77 via the switch 45 and the bundling switch 76, and when the switch 45 is turned on and the formation of bale A is completed, etc. is configured to drive and operate these buzzer 74 and lamp 75.

The present embodiment is constructed as described above, and the straw picked up by the pick-up section 4 is transferred to the bale forming chamber 20 by the lower pipe conveyor 11.
The upper and lower pipe conveyors 10, 11
A roll-shaped bale A is then formed. As shown in FIG. 10, when the diameter of the bale A is now larger than a predetermined diameter, the chain guide 17 of the upper pipe conveyor 16 resists the spring 40 due to the pressure of the bale A. 18 is pushed upward at a certain angle α, and in this state, each element 33, 34, 36, 39, 49
The operating member 48 rotates counterclockwise about the shaft 47 through the fulcrum, causing the spring 50 to pass over the fulcrum, turning on the switch 45, and driving the buzzer 74 and lamp 75, which are alarm devices, to indicate the completion of the formation of the bale A. Notify workers. In this case, the shaft 32 is connected to the connecting plate 30.
It moves within the elongated hole 51 and operates independently of the side door 21.

Next, when the traveling clutch lever 14 is turned off and the tying device 12 completes the twine wrapping operation around the bale A, the door 21 is opened.
Due to the escape, the push-out plate 56 does not move, and only the chain guide 17 starts moving up to a certain angle β via the link mechanism 22. Extrusion plate 5
6 to forcefully extrude the bale A. Therefore, when the bale A is being taken out, the upper pipe conveyor 10 moves upward to create a space between the conveyor 10 and the bale A, and then forced extrusion is performed and resistance is applied to the bale A. Allows for smooth removal without any scratches. Note that when the chain guide 17 reaches the upward movement position, the operating member 8 also moves upward, and at this time, the switch 45 is reset by rotating the operating member 48 clockwise by the pin 52.

"Effect of the invention" As is clear from the above embodiments, the present invention collects the straw picked up by the pick-up section 4 at the front of the lower pipe conveyor 17 into a roll between the upper and lower pipe conveyors 16 and 17. The roll baler for forming bale A is provided with a chain guide 20 that tensions and supports the endless chain 21 of the upper pipe conveyor 16, and uses the front part of the chain guide 20 as a fulcrum to apply the bale A forming pressure to the rear part of the chain guide 20. The upper pipe conveyor 16 is stretched and supported by the chain guide 20, and the bail forming display body 48a, which is connected to the upward movement of the chain guide 20, projects outside the machine from the side cover 53. By doing so, it is possible to easily prevent the conveyor 16 from undulating, reduce mechanical vibration and noise, and make the hardness and size of the bale A uniform. Since the display body 48a is interlocked with the display body 48a, the operator can easily check the finished condition of the bale A from outside the machine through the display body 48a, and also prevents malfunction of the display body 48 and simplifies the structure. This can be easily carried out, and the handling operability can be easily improved compared to the conventional method.

[Brief explanation of the drawing]

Fig. 1 is a side view of the main parts, Fig. 2 is a side view of the whole, Fig. 3 is a plan view of the same, Fig. 4 is a partially enlarged plan view, Fig. 5 is an enlarged explanatory view of the conveyor link section, 6 is an enlarged explanatory view of the bail pressure detection switch section, FIG. 7 is an enlarged explanatory view of the extrusion link section, FIG. 8 is an explanatory view of the same side, FIG. 9 is an electric circuit diagram, and FIG.
It is an explanatory diagram of the operation of the figure. DESCRIPTION OF SYMBOLS 10, 11... Conveyor, 20... Bale forming chamber, 48... Switch operation member, 54... Cover, A... Bale.

Claims (1)

[Scope of utility model registration request] The straw picked up by the pick-up section 4 at the front of the lower pipe conveyor 17 is transferred to the upper and lower pipe conveyors 16,
In the roll baler which forms the bale A by converging in a roll shape between the upper pipe conveyor 1
A chain guide 20 that tensions and supports the endless chain 21 of No. 6 is provided, and the front part of the chain guide 20 is used as a fulcrum, and the rear part of the chain guide 20 is attached to the veil A.
A bale detection device for a roll baler, characterized in that a bale formation display body 48a is provided to be movable upward according to the formation pressure and is interlocked with the upward movement of the chain guide 20, and projects from a side cover 53 to the outside of the machine.