JP6839827B2 - A wrap machine that releases a roll veil so that it can stand up - Google Patents

Description

The present invention relates to a wrap machine capable of releasing a roll bale wrapped with a film into a field, and more particularly to a wrap machine in which a columnar roll bale is allowed to stand up in the field.

Generally, the roll bale is released into the field by wrapping a film around its surface with a wrapping machine.

By the way, when the roll bale is discharged to the field by such a wrapping machine, a pair of front and rear parallel rollers provided on the turntable are tilted toward the rear side, whereby the roll bale is rolled down in the field. (Refer to the patent document).

However, if the roll bale is released into the field so as to roll down in this way, it becomes difficult for the arm to grasp the roll bale when the roll bale is subsequently sandwiched and transferred from the left-right direction by the pickup device. For this reason, conventionally, a unloading frame for erecting the roll bale is extended to the rear of the vehicle body, whereby one end side of the roll bale that rolls down from the turntable is lifted upward to erect the roll bale. ..

Japanese Patent No. 3050818 Japanese Patent No. 4730756 Japanese Patent No. 3801618 Japanese Patent No. 4562847

However, if the roll veil is made to stand up in such a configuration, the following problems occur.

That is, when the roll bale is erected by using the erection frame provided at the rear of the main body, if the roll bale rolls down vigorously, the posture is not stable and it becomes difficult to stand up. Further, when the field is uneven, it is difficult to erect the roll bale because the height with the unloading frame is not constant.

In addition, if the erection frame is extended to the rear of the main body, the wrap machine itself becomes long, and there is a problem that the occupied space becomes large when it is stored in the warehouse.

Therefore, in order to solve the above problems, it is an object of the present invention to provide a wrap machine capable of releasing a roll bale wrapped with a film so as to surely stand up in a field.

That is, in order to solve the above problems, the present invention includes a turntable in which a roll bale is placed on a pair of rollers provided in parallel, and a rotating device for rotating the roll bale placed on the turntable. In a lap machine provided with a tilting mechanism that tilts the turntable so that one end side of the rotation shaft of the roller is downward, a spherical shape that abuts on the side surface of the roll bale mounted on the turntable and rotates. It is designed to be provided with a roller.

With this configuration, the roll bale can be grounded from the side surface of the columnar roll bale, so that the roll bale can be reliably erected. Further, at that time, when the turntable is tilted to release the roll bale from the direction of the side surface of the roll bale, the roll bale can be released so as to get over the spherical roller.

Further, in such an invention, the spherical roller is tilted so that the lower end side is located near the rotation axis of the roller of the turntable and the upper end side is located below the horizontal rotation center of the roll bale. Try to rotate around the axis.

Further, the spherical rollers are provided at two locations on one side of the turntable.

Further, the turntable is rotated so that the direction of the rotation axes of the pair of rollers is directed to the direction in which the roll bale is picked up , and in that state, the turntable is tilted in the direction in which the roll bale is picked up. ..

With this configuration, the roll bale can be erected and released into the field by using the tilting mechanism when picking up the roll bale in the field as it is.

Further, a support arm for supporting the side surface of the tilting roll bale is provided.

With this configuration, when the turntable tilts, the roll bale can be supported by the arm, so that the belt hung on the roller does not shift significantly in the lateral direction.

According to the present invention, a turntable on which a roll bale is placed on a pair of rollers provided in parallel, a rotating device for rotating the roll bale placed on the turntable, and a rotating shaft of the rollers. In a lap machine provided with a tilting mechanism that tilts the turntable so that one end side is downward, a spherical roller that rotates in contact with the side surface of a roll bale mounted on the turntable is provided . Therefore, the roll bale can be grounded from the side surface of the columnar roll bale, and the roll bale can be reliably erected. Further, at that time, when the turntable is tilted to release the roll bale from the direction of the side surface of the roll bale, the roll bale can be released so as to get over the spherical roller.

Side view of the lap machine in the initial state according to the embodiment of the present invention. The figure which shows the state at the time of pickup in the same form Top view showing the turntable in the initial state in the same form The figure which shows the operation example of the side roller in another embodiment Principle diagram showing a film unit in the same form The figure which shows the state of the turntable at the time of the release of the roll veil in the same form. The figure which shows the operation example at the time of the release of a roll bale in the same form The figure which shows the operation example at the time of the release of a roll bale in the same form

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

As shown in FIG. 1, the lap machine 1 in this embodiment includes a turntable 2 on which the roll bale 6 is placed, a bale support base 23 for tiltably supporting the turntable 2, and a film on the roll bale 6. It is configured to include a film unit 4 or the like around which the film unit 4 is wound. Then, characteristically, as shown in FIG. 6, the turntable 2 is rotated 90 degrees around the vertical axis to change the direction of the roller 21 of the turntable 2, and the turntable 2 is tilted rearward. The columnar roll bale 6 is grounded from the side surface 61. Hereinafter, the configuration of the lap machine 1 according to the present embodiment will be described in detail. In the present embodiment, the traveling direction of the vehicle body will be described as the front-rear direction, and the state of FIG. 1 will be described as the initial state.

First, the turntable 2 that supports the roll bale 6 is supported by the bale support base 23, and as shown in FIG. 3, a pair of rollers 21 provided in parallel at regular intervals and the rollers 21. It is configured to include a belt 22 or the like stretched between them. Then, the roll bale 6 is rotated around the horizontal axis by rotating the roller 21 around the rotation axis, and the roll bale 6 is rotated around the vertical axis by using the motor 27 provided below the turntable 2. Is designed to rotate. When the turntable 2 is rotated by the motor 27, the rotation state is detected by the sensor 26 provided below, so that the number of rotations and the position of the turntable 2 can be detected.

Side rollers 21a and 21b for preventing the roll bale 6 from falling are provided on the side of the roll bale 6 placed on the turntable 2. Of these, the side roller 21a provided on one side is configured to include an upright rotating shaft 210a, a roller 211a rotatably attached to the rotating shaft 210a, and the like, as shown in FIG. Then, the side roller 21a configured in this way is used to prevent the roll bale 6 from falling to the side, and the side roller 21a is rotated following the rotation of the roll bale 6 to cause a film due to friction. It is designed to prevent damage to the product. On the other hand, on the opposite side of the turntable 2, since it is necessary to release the roll bale 6 in that direction, the following side rollers 21b are provided. This opposite side will be referred to as the "emission side" and will be described.

First, side rollers 21b provided in the discharge side, as shown in FIG. 3, provided spherical roller 211b on the tip of the rotation shaft 210b that on an angle so as to face downward from the rotation center of the bale 6 together It is configured as follows. As a result, when the roll bale 6 is discharged toward the discharge side, the spherical roller 211b can be rotated and released over the roll bale 6, and when the film is wound around the roll bale 6, the roll bale 6 can be released. The spherical roller 211b can prevent the roller from falling to the side.

Further, the side roller 21c as shown in FIG. 4 can also be used. In FIG. 4, the side roller 21a is omitted. The side roller 21c on the discharge side is provided with a substantially cylindrical or spherical roller 211c at the tip of the upright rotating shaft 210c so that the rotating shaft 210c can be tilted. Then, when the roll bale 6 is discharged toward the discharge side, the side roller 21c is tilted downward by using a motor or the like as shown by the broken line in FIG. As a result, it is possible to prevent the roll bale 6 from falling while the side roller 21c is upright, and when the roll bale 6 is released, the roll bale 6 can be released by tilting the side roller 21c. Become. At this time, if the roll bale 6 is released so as to roll on the side roller 21c, the friction with the belt 22 can be reduced.

Alternatively, the side rollers 21b and 21c may not be provided on the discharge side. However, if the side rollers 21b and 21c are not provided in this way, the roll bale 6 may fall sideways when the roll bale 6 is rotated. Therefore, for example, the pulling force of the film during the wrapping operation. The roll bale 6 may be offset to the non-emission side by using or the like to prevent the roll bale 6 from falling.

On the other hand, the bale support base 23 that supports such a turntable 2 is configured to tilt rearward by using the tilting mechanism 20. The tilting mechanism 20 is composed of a fulcrum 25 provided on the rear side of the vehicle body, a bale support base 23 connected to the fulcrum 25, a bale support base 23, a hydraulic cylinder 24 attached to the frame of the main body, and the like. Then, as shown in FIG. 2, the hydraulic cylinder 24 is extended so as to stand up so as to lift the front side of the bale support base 23.

A support arm 3 for supporting the roll bale 6 is attached to the front side of the bale support base 23. The support arm 3 includes an upright arm 31 that stands up from the bale support base 23, a rotary arm 32 that is rotatably attached to the tip end side of the upright arm 31, and a T-shape on the tip end side of the rotary arm 32. It is configured by providing a contact arm 33 or the like provided in a shape, and the rotating arm 32 is rotated by using a hydraulic cylinder 34 between the standing arm 31 and the rotating arm 32 to pick up the roll bale 6. It is possible to provide assistance such as release and release.

On the other hand, the film unit 4 is attached to the frame of the main body. The film unit 4 is designed so that the film can be extended while being stretched with respect to the roll bale 6 placed on the turntable 2, and is provided on the upper end side of the support column 41 that stands up from the frame of the main body. .. When stretching this film, as shown in the principle diagram of FIG. 5, the rotation speed of each stretch roller can be changed by engaging gears having different gear ratios. When this stretching is performed, the first stretch roller 42 provided on the film roll 45 side is rotated relatively slower than the rotation of the second stretch roller 43 provided on the outlet side (roll bale 6 side). .. As a result, the film supplied from the film roll 45 can be unwound while being stretched and wound so as to be in close contact with the roll bale 6. The first stretch roller 42 presses the outer periphery of the film roll 45 via a spring 44, thereby suppressing free rotation due to the inertia of the film roll 45 and preventing the film from being unnecessarily unwound. I am trying to prevent it.

The film unwound from the film unit 4 is wound around a roll bale 6, and then is held and cut in a bundled state by a cutting holding portion 5 provided in front of the turntable 2. When such holding or cutting is performed, the turntable 2 is tilted as shown in FIG. 2, whereby the film is bundled and cut from the lower end by the cutting holding portion 5. When performing such cutting, the film on the roll bale 6 side is cut while holding the film, whereby when the film is wound around the next roll bale 6, the turntable 2 is held while holding the edge of the film. Can be rotated.

In such a configuration, in the present embodiment, a control unit for picking up and releasing the roll bale 6 is provided. When this pickup is performed, it is picked up from the outer peripheral surface of the columnar roll bale 6, and when the roll bale 6 is discharged, it is discharged from the side surface 61. The operation in this control will be described.

First, when picking up the roll bale 6 left in the field, as shown in FIGS. 1 and 2, the bale support base 23 is tilted and rotated so as to stand backward using the hydraulic cylinder 24. The arm 32 is used to bring the roll bale 6 closer to the main body side. Then, the roll bale 6 is sandwiched between the contact arm 33 provided at the tip of the rotating arm 32 and the roller 21 of the turntable 2, and the turntable 2 is returned to the original state in that state to move the roll bale 6. Place it on the turntable 2.

Next, the film is wound around the roll bale 6 placed on the turntable 2 in this way. When winding this film, the roller 21 of the turntable 2 is rotated to rotate the roll bale 6 about the horizontal axis, and the turntable 2 is rotated about the vertical axis. Then, the film held by the cutting holding portion 5 is sequentially wound around the outer circumference of the roll bale 6.

When it is detected by the sensor 26 that the film has been wound a predetermined number of times, the turntable 2 is set to the position in the initial state, and the bale support 23 is tilted by using the hydraulic cylinder 24 in that state. Then, the film is bundled up from the lower end portion of the film by the cutting holding portion 5, and the film is cut while holding the bundled film.

Then, after the cutting is completed in this way, as shown in FIG. 1, the hydraulic cylinder 24 is contracted again to return the bale support base 23 to the original horizontal state.

Next, the motor 27 is used to rotate the turntable 2, and when the sensor 26 detects that the turntable 2 has been rotated 90 degrees from the initial state, the rotation of the turntable 2 is stopped (states 6 and 7). .. At this time, the rotation axes of the pair of rollers 21 of the turntable 2 are oriented in the front-rear direction, and the side rollers 21b on the discharge side are located rearward. Then, after setting the turntable 2 in this way, the hydraulic cylinder 24 is extended again, the rotating arm 32 is brought closer to the side surface 61 of the roll bale 6, and the contact arm 33 supports the side surface 61 of the roll bale 6 ( The state of FIG. 8). At the same time, the hydraulic cylinder 24 is extended and the turntable 2 is erected until it is in a substantially vertical state. At this time, since the side surface 61 of the roll bale 6 is supported by the contact arm 33, the lateral frictional force does not act on the belt 22. Then, with the turntable 2 upright, the contact arm 33 is separated and the roll bale 6 is upright in the field. At this time, if the field is uneven and the roll bale 6 becomes unstable, the roll bale 6 can be sandwiched from both the rotating arm 32 and the turntable 2, so that the roll bale 6 can be rolled into the field after waiting for a stable state. The bale 6 can be erected.

Then, after releasing the roll bale 6 in this way, the bale support base 23 is returned to the original horizontal state (state of FIG. 7), and the turntable 2 is rotated to return to the initial state (state of FIG. 1). In the same manner below, the next roll bale 6 is picked up so that the film is wound, held, cut, released to the field, and the like.

As described above, according to the above embodiment, the turntable 2 on which the roll bale 6 is placed on the pair of rollers 21 provided in parallel and the roll bale 6 placed on the turntable 2 are rotated. In the lap machine 1 provided with the motor 27 and the tilting mechanism 20 for tilting the turntable 2 so that one end side of the rotation shaft of the roller 21 is downward, the roll bale 6 placed on the turntable 2 is provided. Since the spherical roller 211b that rotates in contact with the side surface of the roll bale 6 is provided, the roll bale 6 can be discharged so as to touch the side surface 61 of the columnar roll bale 6 to the ground, and the roll bale 6 can be surely released. You will be able to stand up. Further, at that time, when the turntable 2 is tilted to release the roll bale 6 from the direction of the side surface of the roll bale 6, the roll bale 6 can be released so as to get over the spherical roller 211b.

The present invention is not limited to the above embodiment, and can be implemented in various embodiments.

For example, in the above embodiment, the turntable 2 is rotated 90 degrees around the vertical axis to release the roll bale 6 rearward, but when the turntable 2 is provided on the front side of the vehicle body, , The roll bale 6 may be released to the front side in the same operation. In this case, the arrangement of the present embodiment is reversed.

Alternatively, if the turntable 2 can be tilted sideways, the roll veil 6 may be released by tilting the turntable 2 sideways while keeping the turntable 2 in the initial state.

Further, in the above embodiment, the turntable 2 is once tilted to hold and cut the film, but the turntable 2 is rotated in the direction at the time of discharge (a state in which the turntable 2 is rotated 90 degrees from the initial state). ), The film may be held and cut when the bale support base 23 is tilted. In this case, the cutting holding portion 5 is provided on the side surface of the turntable 2 on the non-emission side.

1 ... Wrap machine 2 ... Turntable 21 ... Rollers 21a, b, c ... Side rollers 22 ... Belt 23 ... Bale support 24 ... Hydraulic cylinder 25 ... Supporting point 26 ... Sensor 27 ... Motor 3 ... Support arm 31 ... Standing arm 32 ... Rotating arm 33 ... Contact arm 34 ... Hydraulic cylinder 4 ... Film unit 41 ...・ Support 42 ・ ・ ・ First stretch roller 43 ・ ・ ・ Second stretch roller 44 ・ ・ ・ Spring 45 ・ ・ ・ Film roll 5 ・ ・ ・ Cut holding part 6 ・ ・ ・ Roll bale 61 ・ ・ ・ Side surface

Claims (5)

A turntable on which a roll bale is placed on a pair of parallel rollers,
A rotating device that rotates the roll bale placed on the turntable,
In a lapping machine provided with a tilting mechanism that tilts the turntable so that one end side of the rotation shaft of the roller is downward.
A wrap machine provided with a spherical roller that rotates in contact with the side surface of a roll bale placed on the turntable. The spherical roller rotates about a rotation axis that is inclined so that the lower end side is located near the rotation axis of the roller of the turntable and the upper end side is located below the horizontal rotation center of the roll bale. The lap machine according to claim 1. The wrap machine according to claim 1, wherein the spherical rollers are provided at two locations on one side of the turntable. Claim that the turntable is rotated so that the direction of the rotation axes of the pair of rollers is directed to the direction in which the roll bale is picked up, and the turntable is tilted in the direction in which the roll bale is picked up in that state. The lap machine according to 1. The lap machine according to claim 1, wherein a support arm for supporting the side surface of the tilting roll bale is provided.

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