JP6045026B2 - Roll bale loading device - Google Patents

Description

  The present invention relates to a roll bale loading device that collects roll bale placed in a field and loads the roll bale on a wrapping machine or the like, and more specifically, when a roll bale is loaded on a bale support table, harvesting is performed. The present invention relates to a roll bale loading device that prevents an object from falling out of the roll bale.

  Generally, a plastic film is wound around a roll veil formed in a cylindrical shape. When such a film is wound around a roll bale, the roll bale placed on the field is lifted by a lift arm and transferred to a bale support, and the roll bale is rotated on a turntable in the vertical axis direction, or a plastic film. By revolving a film unit provided with a film, the film is wound around a roll bale (Patent Document 1, etc.).

  A general structure of such a wrapping machine is shown in FIG. In FIG. 6, reference numeral 91 is a lift arm, and reference numeral 92 is a bale support for placing the roll bale 8. A lift arm 91 is integrally attached to the distal end side of the bail support base 92. By tilting the bail support base 92, the lift arm 91 can also be tilted simultaneously. In such a structure, when the roll bale 8 is loaded on the bail support base 92, the bail support base 92 and the lift arm 91 are tilted integrally, and the bail support arm 91 a provided at the tip of the lift arm 91 is moved to the roll bale 8. The roll bale 8 is held by approaching the side. Then, by returning the bail support base 92 to a horizontal state, the roll bale 8 is transferred onto the bail support base 92, and then the roll bale 8 is rotated and the turntable 93 is rotated about the vertical axis. Thus, the film is drawn out from the film unit provided on the side and wound.

JP 2003-274747 A

  By the way, when lifting the roll bale of a field using such a wrapping apparatus and loading it on a bale support stand, the following problems arise.

  That is, in the conventional apparatus, when the roll bale is loaded on the bale support base, the lift arm holding the roll bale is raised to transfer the roll bale to the bale support base. During the process, the roll bale rolls into the bale support table vigorously due to the inertial force of the tilting operation, and the harvested product spills from the roll bale due to the impact force at that time. In addition to the spilling of the harvested product in this way, impact force is applied to the dump frame and the bale support table, and a large load is applied to each part, which may cause a failure.

  Accordingly, the present invention has been made paying attention to the above-mentioned problems, and prevents the harvested product from spilling when the roll bale is loaded, and does not apply a large load to each part including the bale support. An object of the present invention is to provide a roll bale loading device.

That is, the present invention has been made paying attention to the above problems, and is provided on a dump frame, on which a bale support base on which a roll bale is placed, a lift arm standing from the dump frame, and a tip of the lift arm A bail support arm that bends in an L shape on the side, a base arm that bends in an L shape on the base end side of the lift arm, and the lift arm and bale support base that are tilted integrally using the dump frame A roll bale loading device comprising a tilting means adapted to allow the roll bale held by the bail support arm and the base end arm immediately before a thought point on the vertical axis of the base end arm. With this, the tilting operation is temporarily stopped.

According to the present invention, prevents the vigorous bale by inertia force will roll in the bale support table, crop can be prevented from falling off from the bale. In addition, by reducing the impact force due to inertia, it is possible to prevent a large load from being applied to each part including the bail support and to prevent failure.

The figure which shows the loading apparatus of the roll bale in one embodiment of this invention The figure which shows the operation example for the loading in the same form The figure which shows the operation example for the loading in the same form The figure which shows the operation example for the loading in the same form The figure which shows the operation example for the loading in the same form Diagram showing a general wrapping machine in a conventional example

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

  The roll bale loading device in this embodiment is realized as a wrapping machine 1 or the like, and as shown in FIG. 1, a roll bale 8 placed on a field is held and lifted. A loading mechanism 2, a bail support 3 on which the roll bale 8 lifted by the loading mechanism 2 is placed, a turntable 51 that rotates the bale support 3 around the vertical axis, and the turntable 51. A film unit 6 for winding a film around a rotating roll bale 8 is provided. And characteristically, the lift arm 21 and the bale support 3 constituting the loading mechanism 2 are integrally tilted to lift the roll bale 8 in the field, and the roll bale 8 is caused to move to the bale support 3. Immediately before the transfer (state shown in FIG. 3), the tilting operation of the lift arm 21 is temporarily stopped, so that the inertial force of the roll bale 8 is reduced, and the transfer can be performed. Hereinafter, the structure of the wrapping machine 1 in the present embodiment will be described in detail.

  First, in FIG. 1, the loading mechanism 2 has a function of picking up the roll bale 8 from the field and placing it on the bale support 3, and discharging the roll bale 8 after wrapping to the field or the like. Specifically, the loading mechanism 2 includes a lift arm 21 erected from the dump frame 41, a bail support arm 23 that bends in an L shape on the distal end side of the lift arm 21, and a proximal end of the lift arm 21. The base arm 24 is bent in an L shape on the side, and when the roll bale 8 in the field is loaded, the lift arm 21 is horizontally moved using the tilting means 4 as shown in FIG. The bail support arm 23 is brought closer to the base end arm 24 so that the distance from the proximal end arm 24 can be reduced. The bail support arm 23 is attached to the distal end side of a rotating frame 22 that is pivotally supported on the distal end side of the lift arm 21 so that the rotating frame 22 is rotated to approach the proximal end arm 24 side. It has become. Then, by bringing the bail support arm 23 closer to the base end arm 24 side in this way, the roll bale 8 is held from the lower side and the lift arm 21 is erected, so that the roll bale 8 is moved to the bail support base 3 side. Make it transferable. At this time, if the lift arm 21 is tilted so as to stand up, the center of gravity G of the roll bail 8 passes through the thought point P on the vertical line of the fulcrum (here, the thought point P on the vertical axis of the base arm 24). At this point, the roll comes into the bail support 3 side.

  On the other hand, the bale support 3 is constructed by stretching a belt 32 between rotating bodies 31 provided at a constant interval in the front-rear direction. A roll bale 8 is placed on the rotating body 31 and the belt 32. It is configured so that it can be placed. Then, by rotating any one of these rotating bodies 31, the mounted cylindrical roll bale 8 is rotated. A motor 5 that rotates about the vertical axis direction is attached below the bail support 3, and the turntable 51 is rotated by rotating the motor 5. The turntable 51 includes a frame that supports the rotating body 31 of the bail support 3. And while rotating this turntable 51 and rotating the rotary body 31 of the bail support stand 3, the roll bale 8 is rotated centering | focusing on the vertical axis | shaft of a perpendicular direction, and, thereby, a film is rolled over the roll bale 8 whole. It is designed to be wrapped around.

  Below the motor 5, tilting means 4 for tilting the bail support 3 and the loading mechanism 2 is provided. The tilting means 4 includes a dump frame 41 tilting around a hinge 43 on the front side (left side in the figure), and a hydraulic cylinder 42 for tilting the dump frame 41. The hydraulic cylinder The dump frame 41 is inclined with the hinge 43 as a fulcrum by extending the cylinder shaft 42, and conversely, the dump frame 41 is returned to a horizontal state by contracting the cylinder shaft of the hydraulic cylinder 42.

  A film unit 6 is provided behind the bail support 3. The film unit 6 is configured such that a plastic film is wound around a roll bale 8 placed on the bale support 3 while stretching a plastic film, and a column is erected from the rear side of the base frame. One or two film rolls are attached to the upper end. When two film rolls are attached, the film rolls are attached so as to be different from each other so that the film can be wound around the roll bale 8 having a wide area at a time while being stretched.

  The film wound in this way is cut by the cutting mechanism 7. The cutting mechanism 7 is attached to the rear side of the bail support 3 and is inclined by lifting the cutting mechanism 7 having a cutter upward by inclining the bail support 3 toward the front, and sandwiching the film. I can do it. The cutting mechanism 7 is provided with a clamp mechanism (not shown) for holding the film so that the film roll side of the cut film can be held.

  In such a configuration, the operation when the roll bale 8 placed on the field is loaded will be described with reference to the operation examples of FIGS.

  First, when the roll bale 8 placed on the field is loaded, the dump frame 41 is tilted by extending the hydraulic cylinder 42 of the tilting means 4 as shown in FIG. To. Then, by rotating the rotary frame 22 provided on the distal end side of the lift arm 21, the bail support arm 23 is brought into the lower side of the roll bale 8, and the roll bale 8 is held by the base end arm 24. .

  Then, when the operation button (not shown) is pressed while the roll bale 8 is held in this manner, the hydraulic cylinder 42 is operated in a contracting direction, and the lift arm 21 attached to the dump frame 41 is erected, and the dump frame The bail support 3 attached to 41 is in a horizontal state. At this time, when the center of gravity G of the roll bale 8 held by the lift arm 21 passes the thought point P on the vertical line from the base end arm 24 as a fulcrum, the roll bale 8 held by the lift arm 21 is passed. However, when the center of gravity G of the roll bail 8 passes through the thought point P (state of FIG. 3), the operation of the hydraulic cylinder 42 is automatically stopped once. The inertial force of the roll bale 8 is reduced.

  Then, after the tilting operation is stopped for a predetermined time (for example, about 1 second) to eliminate the inertial force of the roll bale 8, the lift arm 21 is raised again using the hydraulic cylinder 42 (see FIG. 4). The center of gravity G of 8 slowly passes the thought point P, and the roll bale 8 rolls into the bail support 3 side by its own weight (state of FIG. 5). At this time, since the roll bale 8 starts rolling from the stopped state, the rolling speed can be reduced as compared with the case where the roll bale 8 is rolled while being tilted, and the roll bale 8 is slowly moved to the bale support base. 3 can be rolled. Moreover, since the bail support 3 is tilted downward at the moment of rolling toward the bail support 3 in this way, the rolling speed of the roll bale 8 can be absorbed to reduce the impact. It becomes like this.

  Then, after the roll bale 8 is transferred to the bale support 3 in this way and made into a horizontal state, the rotating body 31 and the turntable 51 are rotated and the film fed out from the film unit 6 as in a known lapping machine. Is to be wrapped around.

Thus, according to the above-described embodiment, the bail support 3 provided on the dump frame 41 and on which the roll bale 8 is placed, the lift arm 21 standing from the dump frame 41, and the lift arm 21 A bail support arm 23 bent in an L shape on the distal end side, a base end arm 24 bent in an L shape on the base end side of the lift arm 21, and the lift arm 21 and the bale support base using the dump frame 41. In the wrapping machine 1 provided with the tilting means 4 that tilts integrally with the roll 3, the tilting means 4 has a base end of a roll bale 8 held by the bail support arm 23 and the base end arm 24. since so temporarily stop the tilting operation immediately before the change point P of the vertical axis of the arm 24, vigorously bale 8 bale support table by the inertial force Roll into such a thing is no longer in. Thereby, it is possible to prevent the harvested product from spilling from the roll bale 8, and to reduce the impact force due to inertia, a large load is not applied to each part including the bail support 3.

  In addition, this invention is not limited to the said embodiment, It can implement in a various aspect.

  For example, in the above-described embodiment, the wrapping machine 1 has been described as an example of the loading apparatus. However, the present invention is not limited to such a wrapping machine 1, and an apparatus that loads the wrapped roll bale 8 onto a truck or the like. It can also be applied.

  In the above embodiment, the roll bale 8 is lifted using the loading mechanism 2 such as the lift arm 21 and the bail support arm 23. However, the roll bale 8 is held using such an arm-shaped member. The roll bale 8 may be placed on a plate-like member and moved to the bail support base 3 side by tilting the plate. In this case, the plate-like member corresponds to the holding portion in the relationship with the present invention.

  Further, in the above embodiment, the tilting means 4 is constituted by the dump frame 41 and the hydraulic cylinder 42. However, the present invention is not limited to this, and the lift arm 21 and the bail support 3 are used by using a gas cylinder or a motor. You may make it tilt.

  Further, in the above embodiment, the bail support 3 and the lift arm 21 are attached on the dump frame 41 and are integrally tilted using one hydraulic cylinder 42. Tilt means 4 may be used for tilting.

1 ... Wrapping machine 2 ... Loading mechanism (holding part)
21 ... Lift arm 22 ... Rotating frame 23 ... Bale support arm 24 ... Base end arm 3 ... Bale support base 31 ... Rotating body 32 ... Belt 4 ... Tilt means 41 ... Dump frame 42 ... Hydraulic cylinder 5 ... Motor 51 ... Turntable 6 ... Film unit 7 ... Cutting means 8 ... Roll bale P ... Consideration point G ...・ Center of gravity

Claims (1)

A bale support provided on the dump frame and on which the roll bale is placed;
A lift arm erected from the dump frame;
A bale support arm that bends in an L shape on the tip side of the lift arm;
A proximal arm bent in an L shape on the proximal side of the lift arm;
In a roll bale loading device comprising a tilting means that tilts a lift arm and a bale support unit integrally using the dump frame ,
The roll bale is characterized in that the tilting means temporarily stops the tilting operation of the roll bale held by the bail support arm and the base end arm immediately before a thought point on the vertical axis of the base end arm . Loading device.

Images