JP2516420B2 - Roll bearer - Google Patents

Description

The present invention relates to an agricultural crop such as grass and the like, which is formed into a roll-shaped bale in a bale forming chamber, and is stretchable in the bale forming chamber on the body circumferential surface thereof. , A roll baler for packaging in high tension with a plastic film, and a roll baler for packaging under tension in a non-stretchable plastic film.

[Prior Art] Conventional roll baler packing means is, for example, as shown in FIG.
There are three means shown in FIG.

The first means shown in FIG. 1 is a twine roll baler in which a non-stretchable twine t (a string made of plastic, linen, etc.) is wound around the outer periphery of a roll-shaped bale B ten or more times. .

 This twine roll baler has the following problems.

1) A bale B that is a roll of tween t partially
The outer circumference was uneven because it was wrapped around and tightened.

2) Since the twain t does not have extensibility, the roll-shaped bale B in which the volume of pasture grass and the like decreases as time passes is deformed.

3) When the plastic twain t was used, the bale B in the form of a sliding roll was strongly tightened and could not be packed because the frictional force was small.

4) Since the twine t is partially wound around the bale in a roll shape, the surface of the bale is exposed and the bale B in a roll is stored indoors in order to avoid rain and dew. Or it was necessary to hang a waterproof sheet.

5) When making silage such as grass, it is necessary to maintain airtightness in order to ensure good quality fermentation. Put the roll-shaped bale in an airtight bag or use another machine to make airtight plastic film. Had to be wrapped.

The second means shown in FIG. 2 is a net winding roll baler in which the outer periphery of the roll-shaped bale B is wound several times with a net n (a net made of plastic).

 This net roll baler has the following problems.

1) Since the net n does not have extensibility, the shaped roll-shaped bale B is deformed as the volume of grass and the like decreases over time.

2) The net n is wrapped around the bale B in a roll shape, but the surface of the net is mesh-like and the grass is exposed.
In order to avoid rain and dew, it is necessary to store the roll-shaped bale indoors or hang a waterproof sheet.

3) When making silage such as grass, it is necessary to maintain airtightness for good quality fermentation.
Should be placed in an airtight bag or wrapped in another machine on an airtight plastic film.

The third means shown in FIG. 3 is a sheet winding roll baler that winds the outer periphery of the roll-shaped bale B several times with a non-stretchable sheet s (made of plastic).

 This sheet roll baler has the following problems.

1) Since the sheet s does not have extensibility, the roll-shaped bale is deformed as the volume of grass and the like decreases over time.

2) Since the sheet s is not tacky, the sheet s and the already wrapped sheet were not given a force to tighten the bale in the form of a sliding roll even when the sheet s was wrapped by applying tension. Therefore, the end surface of the sheet s was immediately peeled off, and the roll-shaped bale B itself was easily broken during the movement.

3) When making silage such as grass, it is necessary to maintain airtightness for good quality fermentation. Since the sheet peeled off immediately, the airtightness could not be maintained.

By the way, in order to solve the problems occurring in these conventional means, the sheet s wound around the peripheral surface of the bale B which is formed into a roll shape is a plastic film having stretchability, and this film is Bale B formed in the bale forming chamber by the film feeding device from the bundle of
Toward the outer peripheral surface of the, and at this time, the bale B
Between the outer peripheral surface of the film and the film feeding device,
Means for winding the bale B around the outer peripheral surface in a stretched state have been developed.

[Problems to be Solved by the Invention] As described above, when a plastic film having stretchability is used and wound around the outer peripheral surface of the bale while being stretched, the plastic film has the structure shown in FIG. As described above, due to the characteristic of the relationship between the tensile force and the draw ratio, when the film is drawn between the film feeding device and the outer peripheral surface of the bale, unevenness occurs as shown in FIG. 38. Then, there arises a problem that the outer peripheral surface of the bale cannot be tightly tightened.

In addition, when the bale for forming the stretchable plastic film F in the bale forming chamber is finished, it is further rolled in the bale forming chamber and wound around the outer peripheral surface of the bale to be packaged. When both ends of the axial direction of B are exposed, when the cut grass is picked up and formed into a bale B, as shown in FIGS. 43 and 44, as shown in FIGS. From both ends of the direction, there will be a problem that grasses will start to collapse.

The present invention has been made in order to solve this problem that has occurred in the conventional means, in which a stretchable plastic film is wound around a body surface of a bale formed in a bale forming chamber while being stretched. When packing with
A new means to make the plastic film stretch in a substantially uniform state, and a plastic film to be wrapped around the outer surface of the bale rolling in the bale forming chamber, from both end surfaces in the axial direction of the bale. Its purpose is to provide a new means of ensuring that the grasses of the grass are wrapped so that they do not collapse.

[Means for Solving the Problem] In the present invention, as a means for achieving the above-mentioned object, a pickup device for picking up an agricultural crop such as grass and a picked-up agricultural crop are transferred. A transfer device, a bale forming chamber that receives the agricultural crops to be transferred and forms a roll-shaped bale by a roll forming device, and an extensibility that is supplied to the body circumferential surface of the bale formed in the bale forming chamber. A roll for winding the plastic film, a film feeding device for feeding the plastic film from the roll, and a pre-stretching device for pre-stretching the plastic film fed from the film feeding device. The pre-stretching device is fed from the film feeding device to the circumferential surface of the bale formed into a roll shape in the forming chamber. By feeding the plastic film stretched by, between the film feeding device and the body circumferential surface of the bale, a roll baler characterized by being wound while further stretching is proposed, and also grass and the like A pick-up device for picking up the agricultural harvested product, a transfer device for transferring the picked-up agricultural harvested product, and a bale forming chamber for receiving the transferred agricultural harvested product and forming it into a roll-shaped bale by a roll forming device. A roll for winding a stretchable plastic film having adhesiveness, which is supplied to the peripheral surface of the bale formed in the bale forming chamber, a film feeding device for feeding the plastic film from the roll, and A pre-stretching device for pre-stretching the plastic film fed from the film feeding device, The peripheral surface of the bale formed into a roll in the roll forming chamber, the plastic film that is fed from the film feeding device and stretched by the preliminary stretching device is fed, and the film feeding device and the veil peripheral surface. In the roll baler for further winding while stretching, the plastic film fed out from the film feeding device is molded in the bale molding chamber. A stretchable plastic film having a width wider than the entire axial width of the roll-shaped bale. As a result, a roll baler characterized by being wound around the entire width of the body surface of the roll-shaped bale and the peripheral portion of the end face in the axial direction is proposed, and agricultural crops such as grass are picked up. Pick-up device, a transfer device for transferring the picked-up agricultural crop, and an acceptance and winding of the transferred agricultural crop. A bale forming chamber for forming a roll-shaped bale by a forming device, a roll in which a stretchable plastic film having adhesiveness to be supplied to the body circumferential surface of the bale formed in the bale forming chamber is wound, and A film feeding device for feeding the plastic film from a roll, and a pre-stretching device for pre-stretching the plastic film fed from the film feeding device, and the circumference of the bale formed into a roll in a bale forming chamber. A roll baler for feeding the plastic film, which is fed from the film feeding device and stretched by the preliminary stretching device, between the film feeding device and the body circumferential surface while further stretching the surface. The stretchable plastic with a width narrower than the width in the axial direction of the roll-shaped bale from the film feeding device. The present invention provides a roll baler, which is characterized in that a stick film is fed out and partially wound around a roll-shaped bale forming chamber and a circumferential surface of the bale.

[Operation] According to the means of the present invention configured as described above, the plastic film F having the stretchability to be wound around the circumferential surface of the bale in the bale forming chamber is provided between the roll of the film bundle and the film feeding device. By pre-stretching for a short distance, first, as shown in FIG. 39, the film F is stretched to a uniform state, and the stretched film F is fed to the film feeding device and the bale circumference of the bale in the bale forming chamber. The second step is performed at a long distance from the surface,
As shown in the figure, since it is stretched in a substantially uniform state and wound around the body peripheral surface of the bale, the body peripheral surface of the bale can be wound and packed uniformly without loosening.

In addition, the width of the plastic film F to be wound is formed to be wider than the overall width of the veil's circumferential surface in the axial direction, so that the entire width of the veil's circumferential surface and the peripheral portions of both axial end faces are formed. By wrapping, the veil B will be packed as shown in FIGS. 46 and 47, and even if the veil B is formed by cutting and processing the grass, the end surface will be as shown in FIG. 47. It will effectively prevent the collapse of grassland from.

[Example] As shown in Fig. 4, the roll baler A has a front end portion of the machine body 1 which is connected to and pulled by a tractor or a machine body which is self-propelled and is sown on the field. A pick-up device 2 for picking up grass such as rice leaves is mounted, a transfer device 3 is arranged behind the pick-up device 2, and a bale forming chamber 4 for receiving grass picked up by the pick-up device 2 is provided at the rear of the machine 1. Is mounted on the inner peripheral surface of the bale forming chamber 4, and is provided with a roll forming device a for rolling the pasted grass into a roll and compressing and forming the roll. A bundling device is provided around the outer periphery of the bale for feeding and winding the twine.

Then, as shown in FIG. 4, the roll forming bale forming device a, which forms the grass to be received in the bale forming chamber 4 into a bale in a roll shape, is endlessly rotated along the inner peripheral surface of the bale forming chamber 4 in a side view. Tight chains 50 that move are made to face each other on both left and right sides and stretched.
A large number of tight bars 51 are spanned in parallel in the rotating direction of the tight chain 50 at a predetermined interval so that the tight chain 50 is driven to rotate as shown by the arrow in FIG. By doing so, the grass fed into the bale forming chamber 4 is rolled into a bale by the tight bar 51 that rotates like a slat conveyor along the inner peripheral surface of the bale forming chamber 4 so that the bales are bale-rolled. A tight bar type that is molded into B, and a large number of rollers 52 as shown in FIG.
Are arranged in an annular shape so as to form the inner peripheral surface of the bale forming chamber 4 and are axially supported by the machine body 1, and are driven to rotate in the direction of the arrow in FIG. The roller type in which the grass fed into the is rolled and compressed to form the bale B, and the bale forming chamber 4 is surrounded by an annular shape as shown in FIG. The belt 54 is endlessly wound around the guide rollers 53 supported on the machine body 1, and the belt 54 is endlessly rotated as shown by an arrow in FIG. There is a belt type that is molded.

In this manner, the roll baler A is provided with the bales B in the form of rolls which are fed into the bale forming chamber 4 of the roll baler A.
There are various forms of the roll-forming device a for roll-forming, and an example will be described below using the tight bar type roll-forming device a.

FIG. 7 is a side view of the main part of the roll baler A. In FIG. 7, 1 is a machine body, 2 is a pickup device, 3 is a transfer device, 4 is a bale forming chamber, a is a roll forming device, and b is a bale forming chamber. 4 shows a film feeding device for feeding a plastic film for packaging to the bale B shaped in 4.

The machine body 1, the pickup device 2, the transfer device 3, and the bale forming chamber 4 are conventionally known, and the machine body 1
Omits the details and shows only the outline with a chain line. The pickup device 2 is mounted on the lower part of the front end of the machine 1, and the transfer device 3 is formed as a rotating wheel that rotates in the direction of the arrow in FIG. 7 to form the pickup device 2 and the inlet 4a of the bale forming chamber 4. And the bail forming chamber 4 is provided in the rear machine frame 10 of the machine body 1 which constitutes the latter half of the bale forming chamber 4.
By opening and rotating backward and upward around the hinge 11, the bale B formed inside can be discharged to the outside. Further, the roll forming device a provided so as to form the inner peripheral surface of the bale forming chamber 4 is configured as a tight bar type in which tight bars 50 are stretched opposite to each other and tight bars 51 ... is there.

The film feeding device b is, as shown in FIG. 8, a roll 60 for winding a plastic film F for packaging,
A feeding roll 61 that is driven to rotate so as to feed the plastic film F from the roll 60, an induction roll 62 that rotates in opposition to the feeding roll 61, and a cutting mechanism that performs a cutting operation when the fed plastic film F reaches a predetermined length. It consists of 7.

The plastic film F wound around the roll 60 is a normal film made of polyethylene such as the product name Yucarap / Ciderlap, but has a property of having stretchability and adhesiveness. As for the tackiness of the plastic film F, the one formed on the film with the plastic material having the tackiness or the one formed on the both sides or one side of the film formed with the non-sticky plastic material Including.

Further, this plastic film F is a bail B which is formed into a roll shape in the bale forming chamber 4 as shown in FIG.
The width is formed to be a fraction of the total width in the axial direction of. Then, the roll 60 and the payout roll 61, which are wound around it, have a frame 63 that pivotally supports the roll 60 and an indicator frame 64 provided on the machine body 1 in the axial direction of the roll 60 as the roll 60 rotates. The frame 63 is reciprocally moved along the axis of the frame 63, and the reciprocating motion of the frame 63 causes the feeding position of the plastic film F with respect to the bale B to be sequentially displaced in the axial direction of the bale B.

Then, the plastic film F has a feeding roll 61.
Driven by the feed roll 61 and the guide roll 62, the roll 60 is fed from the roll 60, and the free end of the roll is picked up by the pickup device 2 together with grass and the like, and is wound into a roll by the transfer device 3 and the tight bar 51. It goes into the inside of the veil B. At this time, the plastic film F fed by stopping the traveling of the machine body 1 and stopping the picking up of the grasses is formed into a roll shape, and is formed on the circumferential surface of the bale B which continues to rotate by the rotation of the tight bars 51. Wrap and wrap.

In this example, the feeding roll 61 is driven by the tight chain 50.
By transmitting the shaft of the sprocket 500 for driving the shaft of the sprocket 500 and the shaft of the feeding roll 61 through the conduction mechanism 65 such as the conduction chain,
The roll of the plastic film F is designed to be driven in conjunction with the roll forming device b and at the same time used as a stretching means for stretching the plastic film F fed by the roll forming device b. No pre-stretching means is provided between the feeding roll 61 and the guiding roll 62 which constitute the film feeding device. Further, the transmission mechanism 65 may be formed by other mechanical means, and a clutch for disconnecting power and a constant speed or speed change mechanism are appropriately incorporated in the mechanism.

The conduction ratio set in the conduction mechanism is determined by the roll-up molding device a.
The peripheral speed of the pay-out roll 61 with respect to the peripheral speed of the roll-shaped bale B which is rotated by is preselected and set so as to give optimum stretching in accordance with the composition of the stretchable plastic film F. As a result, the stretchable plastic film F is stretched by the winding of the feeding roll 61 of the film feeding device and the winding start position of the roll-shaped bale B on the body circumferential surface, and has a high tension. And wrap it around the circumference of the roll-shaped bale B. The cutting mechanism 7 sets the number of windings of the plastic film F to be wound around the body circumferential surface of the roll-shaped bale B in advance by mechanical means connected to the rotating shaft of the pay-out roll 61, or temporally or electrically. When the number of turns reaches the specified number of turns, the cutting operation of rotating clockwise around the operating shaft 70 in FIG. 8 is performed to cut the plastic film F between the feeding roll 61 and the bale B.
As a result, the cut end is adhered to the outer periphery of the plastic film F which has already been wrapped due to the adhesiveness, and the packaging of one bale B is completed, and the bale forming chamber 4 is opened to remove it. Be done.

Next, FIGS. 10 to 13 show another form of the film feeding device.

This form is used for the feeding roll of the film feeding device b.
The drive of 61 is such that only when the bale B is wound into a predetermined diameter and is packaged in the bale forming chamber 4, the feeding roll 61 is fed through the one-way clutch only at the start of the work.
Small motor (not shown) that is transmitted to the rotating shaft of
Operation or manual operation until the feeding end of the plastic film F reaches the grass which is picked up by the pickup device 2, and the feeding end is picked up by the pickup device 2 together with the grass and the like, and is transferred to the transfer device 3. The plastic film F is sent to the bale forming chamber 4 by the roll-up forming device a and wound around the body surface of the rotating bale B, so that the plastic film F is pulled out by the rotation of the bale B. After that, by the rotating force of the bale B, the feeding roll 61 is fed through the plastic film F.
Is an example in which there is no conduction with the drive sprocket 500 of the roll forming device a, and a brake is provided on the shaft of the pay-out roll 61. The other points are the same as those of the embodiment shown in FIGS. 7 to 9 described above.

That is, a brake plate 66 is attached to the shaft end of the feeding roll 61, and a brake shoe 68 provided at the tip of the brake arm 67 is crimped onto the brake plate 66 to brake the rotation of the feeding roll 61. There is. Then, by this braking, the peripheral speed of the pay-out roll 61 with respect to the peripheral speed of the roll-shaped bale B gives the stretchable plastic film F the optimum stretching in accordance with its composition, and is optimally selected in advance. Adjust the crimping force of the brake shoe 68 so that the peripheral speed ratio is a certain ratio.

The stretchable plastic film F wound around the body surface of the bale B in a roll shape is stretched between the feeding roll 61 and the winding start position on the body surface of the bale B in a roll shape to obtain high tension. Wrap the bale B in the form of a roll. At this time, when the number of windings reaches a preset number of windings, mechanically or temporally,
Alternatively, the cutting mechanism 7 starts to operate under the control of electric means or the like to cut the stretchable plastic film F, thereby completing the packaging of the bale B in the bale forming chamber 4. It is the same as the one in the form. And, this is not provided with a preliminary stretching means.

Next, FIGS. 14 to 17 show another embodiment.

This form is a modification based on the form shown in FIG. 10 to FIG. 13 described above, and in the form described above, a brake provided at the shaft end of the rotary shaft of the payout roll 61. The plate 66 is attached to the shaft end portion of the rotation shaft of the roll 60 in which the plastic film F of the film feeding device b is wound, and the brake shoe 68 provided at the tip of the brake arm 67 is pressure-welded to the plate 66 to form a roll shape. The only difference is that the plastic film F wound around the body surface of the bale B and drawn out is stretched by braking the roll 60 in which the plastic film F is wound. The configuration is the same as that shown in FIGS. 10 to 13 described above.

That is, the brake plate 66 provided at the shaft end of the rotating shaft of the roll 60.
The pressure contact of the brake shoe 68 against the circumference of the winding of the plastic film F wound on the roll 60 so that the stretchable plastic film F wound on the peripheral surface of the bale B in a roll shape is appropriately stretched. The speed is adjusted so as to be a ratio of an appropriate peripheral speed selected in advance to the peripheral speed of the bale B.

As a result, the stretchable plastic film F pulled by the roll-shaped bale B is stretched by winding the roll 60 and the winding start position with respect to the body circumferential surface of the roll-shaped bale B, and has a high tension. In the state, it is wound around the bale B in a roll shape. When the number of windings reaches a preset number, the cutting mechanism 7 is operated by control of mechanical, time, or electrical means to cut the extensible plastic film F, and the bale B The packaging process will be completed.

18 to 20 show a first embodiment of the present invention.

In this embodiment, before the plastic film F fed out from the film feeding device b is wound around the circumferential surface of the bale B in a roll shape, a stretching device is installed which is stretched to a predetermined degree of stretching in advance. .

That is, the film feeding device b is driven by transmitting the driving sprocket 500 of the roll forming device a or another appropriate prime mover shaft to the frame 63 supporting the roll 60 wound with the stretchable plastic film F. A rotating feeding roll 61 and a guide roll 62 facing the feeding roll 61 are pivotally supported, and a frame 63 of the feeding roll 61 is fixed to and mounted on the machine body 1.
The support for reciprocating in the axial direction such as 60 is similar to the embodiment shown in FIG. 7 to FIG. 9, but a stretching roll 69 is provided between the roll 60 and the feeding roll 61.
Are arranged and are pivotally supported by the frame 63. The drawing roll 69 is also a drive sprocket of the roll-in molding device a.
Conduction mechanism 8 for the shaft that is driven to rotate by being transmitted to the prime mover shaft such as 500
2 through the conduction, by setting the conduction ratio of the conduction draft 82 and the conduction ratio of the conduction mechanism 65 of the feeding roll 61 described above, between the peripheral speed of the stretching roll 69 and the peripheral speed of the feeding roll 61. The ratio is set to the peripheral speed ratio so as to give the optimum pre-stretching to the composition of the stretchable plastic film F, whereby the stretchable plastic film F is
Is pre-stretched between the stretching roll 69 and the payout roll 61,
In that state, it is fed from the feeding roll 61.

In addition, a power transmission mechanism 65 for transmitting the rotational power to the feeding roll 61.
Further, the transmission mechanism 82 for transmitting the rotational power to the stretching roll 69 is provided with a clutch and a constant speed or a speed change mechanism for connecting and disconnecting the conduction in the mechanism, whereby the peripheral speed ratio to be set can be appropriately changed and adjusted. Sometimes you want to.

Thereby, the plastic film F having stretchability
Is fed from the feeding roll 61 with an optimum pre-stretching applied, and further, the peripheral speed of the roll-shaped bale B and the feeding roll 61 are fed.
With the optimum peripheral speed ratio preselected and set between the peripheral speed of 61 and the peripheral speed of 61, it is stretched between the feeding roll 61 and the winding start position of the roll-shaped bale B around the cylinder peripheral surface, and high tension is maintained. Wrap it around the circumference of the roll bale B while holding it. Then, when the number of turns reaches a preset number of turns, the cutting mechanism 7 starts to operate under the control of mechanical, electrical, or strange means to cut the stretchable plastic film F. The packaging of the bale B in the bale forming chamber 4 is completed.

 Next, FIGS. 21 to 23 show another embodiment.

This embodiment is an example in which a pre-expansion device is incorporated in the form shown in FIGS. 10 to 13 described above, and the other configuration except this point is shown in FIGS. It is the same as the embodiment shown in FIG.

That is, in the vicinity of the roll 60 that is pivotally supported by the frame 63, the feeding roll 61 and the guide roll 62 are coordinated, and they are axially supported by the frame 63 so as to face each other, and the stretching roll 69 is provided between them and the roll 60. And support the frame 63, and the frame 63
The support of the support frame 64 so as to reciprocate in the axial direction of the rolls 60 and the like is the same as the embodiment shown in FIGS. 18 to 20 described above, but the delivery roll 61 is conducted to the drive shaft. It is supported so that it can rotate freely, and at the start of feeding, a small motor shaft for feeding only the length that is entangled in the grass picked up by the pickup device 2 is attached via a one-way clutch. It is conducted. Then, the rotation shaft of the feeding roll 61 and the rotation shaft of the stretching roll 69, the peripheral speed of the stretching roll 69 with respect to the peripheral speed of the feeding roll 61, the transmission mechanism 82 for decelerating at a predetermined reduction ratio. The free end of the plastic film F, which has been conducted through and which has been fed to a predetermined length at the time of starting, is entangled with the grass to be picked up by the pickup device 2 by the selection of its reduction ratio, and the formed bale B When it is wound around the body surface of the bale B and is wound around the body surface of the rotating bale B by the drive of the roll forming device a after the traveling of the machine body 1 is stopped, the feeding roll 61 rotating by Drawing roll 69
The peripheral speed difference between and is set between them so as to give the stretchable plastic film F an optimum pre-stretch for its composition. And the stretchable plastic film F fed by this is the feeding roll.
It is pre-stretched between 61 and the stretching roll 69.

Further, the stretchable plastic film F drawn out by the roll-shaped bale B is further stretched between the feeding roll 61 and the winding start position with respect to the body circumferential surface of the roll-shaped bale B, and has a high tension. Rolled veil B
When the number of turns reaches a preset number, the cutting mechanism 7 operates to cut the extensible plastic film F in the same manner as in the above-described embodiment, and the plastic film F is cut. The cut end of the sticker adheres to the outer circumference of the plastic film F already wrapped around the peripheral surface of the bale B by virtue of the adhesiveness, whereby the packaging of one bail B is completed.

Next, FIG. 24 to FIG. 33 show the bail B performed in the bale forming chamber 4 of the roll baler A by using the stretchable plastic film F by the above-mentioned respective embodiments.
2 shows a change in the manner in which the plastic film F is wrapped around the body peripheral surface of the veil B in the packaging of FIG.

The example shown in FIGS. 24 and 25 is a film feeding device b.
The plastic film F fed out from the bale molding chamber 4
In the inside, as the stretchable plastic film F having a width narrower than the axial width of the roll-shaped bale B to be formed, the stretchable plastic film F is partially formed in a part of the roll-shaped bale B in the axial direction with respect to the circumferential surface thereof. This is an example of wrapping and partially packaging.

Further, FIGS. 26 and 27 show a roll-shaped bale B for forming the plastic film F delivered from the film delivery device b in the bale forming chamber 4 by the stretched width.
This is an example of the case where the stretchable plastic film F having a width corresponding to the entire width in the axial direction of the roll bale B is coated with the plastic film F at one time. Become.

28 and 29 show that the width of the plastic film F fed from the film feeding device b in the stretched state is larger than the entire axial width of the body circumferential surface of the bale B formed in the bale forming chamber 4. This is an example in the case of a wide stretchable plastic film F, in which both side portions f in the width direction of the plastic film F, which is unwound and wound around the body circumferential surface of the bale B, in excess of the body circumferential surface of the bale B, As shown in FIG. 28, the entire width of the body peripheral surface of the roll-shaped bale B and the peripheral portion of the end surface in the axial direction are once bent by being bent and wrapped around the peripheral portion of the end surface of the roll-shaped bale B. To be coated and packaged.

Further, FIGS. 30 and 31 show that the plastic film F fed out from the film feeding device b is stretched in a width narrower than the axial width of the circumferential surface of the roll-shaped bale B for molding in the bale molding chamber 4. Of a flexible plastic film F, and the frame 63 of the film feeding device b is laterally fed (single side feeding, reciprocating feeding, or reciprocating feeding several times) in the axial direction of the roll-shaped bale B with respect to the supporting machine frame 64. Thus, when the plastic film F is wrapped and wrapped so as to extend over the entire width of the body circumferential surface of the bale B, the lateral movement of the film feeding device b corresponds to the entire width of the bale B in the axial direction. This is an example in which the range is set, so that the plastic film F is wound around the entire circumferential width of the bail B, although it is limited to the circumferential surface of the bail B.

Next, FIG. 32 and FIG. 33 show that in the above case,
This is an example in which the lateral movement range of the film feeding device b is set to be wider than the axial width of the body circumferential surface of the bale B, whereby the plastic film F wound on the body circumferential surface of the roll bale B is When the film feeding device b is positioned at each end of the lateral movement range, one half side of the plastic film F in the width direction thereof protrudes out from the axial end portion of the circumferential surface of the bail B, and The protruding portion f bends along the peripheral surface of the bale B and is wound around the axial end surface of the bail B around the peripheral edge to cover both the entire width of the body peripheral surface and the peripheral edge of the axial end surface. I will start packing.

[Effects of the Invention] As described above, the roll baler according to the present invention rolls the bale B, which has been formed into a roll shape in the bale forming chamber, in the bale forming chamber in that state and rolls around the body. A stretchable plastic film F is wound on the surface by a film feeding device, and when wrapped and packed, the plastic film F having the stretchability is fed by a pre-stretching device. It is pre-stretched for a short distance and then wound around the cylinder surface of the bale B while being further stretched for a long distance between the film feeding device and the cylinder surface of the bale B. Stretchable plastic film F
However, since it is stretched in a substantially uniform state without causing unevenness and is wound around the body peripheral surface of the bale B in a tensioned state, the plastic film F of the bale B does not loosen and You will be able to wrap it in a clean state.

Further, the width of the plastic film F to be wound is formed so as to be wider than the entire width in the axial direction of the body peripheral surface of the veil B,
By winding around the entire width of the body circumferential surface of the bale B and the peripheral edges of both axial end surfaces, even if the grass to be formed into the bale is cut, the bale B can be cut from the axial end surface of the bale. You will be able to pack it so that it does not collapse.

In addition, since the stretchable film is pre-stretched to have a width much narrower than the width of the bale in the axial direction and partially wrapped around the circumferential surface of the bale, the packing is performed, so that the packing can be surely performed. And it can be done quickly.

 Further, the means of the present invention can further obtain the following effects.

According to the present invention, the roll-shaped bale packaged in the bale chamber of the roll baler has the entire width of the body circumferential surface, or the entire width of the body circumferential surface and the peripheral edge portion of the axial end surface wrapped with a plastic film. The end face in the axial direction is partially or entirely open.

A conventional air-tight bag or an all-sealed package usually wrapped by a packaging machine called a wrapping machine is a tightly sealed one when transported, and therefore cannot be pierced by a fork or the like of a front loader. Therefore, a special carrying device for sandwiching the roll-shaped bale was necessary and had to be handled gently, but in the case of the present invention, the axial end surface of the molded bale is open. Therefore, it can be pierced by the fork of the front loader or the like. And
For this reason, it is possible to carry out the carrying work speedily without requiring special tools, and to easily carry it to the storage location.

In addition, the roll-shaped bales B formed by the roll baler according to the present invention have both axial end surfaces which are wholly or partially open to the outside air, but as shown in FIG. By arranging the roll-shaped veils B in the axial direction so that the end faces in the axial direction are bonded to each other, the open end faces are blocked, and thus the bales B are left in the field or storage place in this manner. As a result, the airtightness inside can be maintained. In particular, when the stretchable plastic film F is wrapped around the entire width of the body circumferential surface and the peripheral edge of the axial end face, the stretchable plastic films located at the axial end faces are closely attached to each other. Therefore, the airtightness can be further maintained. Further, the outer end surface of the bale B located at the end of the roll-shaped bale B ...
As shown in the figure, apply a plastic film F ′ or the like and tie it with a string 80 to seal it or prepare separately. From a bundle of adhesive stretchable or non-stretchable plastic film F to a plastic film The airtightness is further maintained by pulling out F and winding it by hand to close it.

In addition, as shown in FIG. 35, the roll baler A is formed into a roll in the bale forming chamber 4 and the peripheral surface of the peripheral surface of the roll baler A or the axial end surface is covered with a plastic film F. -The wrapped bale B is placed on the ground with its axial direction up and down, the side in contact with the ground is covered with soil, and the axial end face facing upward is as in the example shown in FIG. 34 above. The airtightness can be maintained by applying a plastic film F ′ or the like and binding it with a string 80 or by manually winding and closing the plastic film F fed from a separately prepared bundle of the plastic film F. .

This means for maintaining the airtightness of the roll-shaped bale B covered and wrapped with the plastic film F with both ends in the axial direction opened is further developed, and as shown in FIG. Are stacked in several steps with the axial direction as the top and bottom, the upper end surface of the upper end bale B is closed with the plastic film as described above, and the lower end surface of the lower end bale B is sealed with soil or the like, so that it is more efficient. The airtightness can be maintained. The means shown in FIGS. 34 to 36 are applicable not only to the bale B packaged with the plastic film F in the bale forming chamber 4 of the roll baler A but also to the bale packaged after being taken out from the roll baler. .

As described above, according to the means of the present invention, formed by a roll baler, it is possible to further improve the quality of a roll-shaped bale of agricultural crops such as grass, and,
Work efficiency can be further improved.

[Brief description of drawings]

FIGS. 1, 2, and 3 are explanatory views of a conventional roll-shaped bale packing means, and FIGS. 4, 5, and 6 are explanatory views of various forms of a roll baler roll-in molding apparatus. FIG. 7 is a schematic side view of the whole roll baler, FIG. 8 is a side view of the main part of the same, FIG. 9 is a plan view of the main part of the same, and FIG. 10 is a general side view of another form. Fig. 11 and Fig. 11 are plan views of essential parts of the above, Fig. 12 is an enlarged side view of essential parts of the same, Fig. 13 is an enlarged plan view of essential parts of the same, and Fig. 14 is an overall view of another form. FIG. 15 is an enlarged side view of the essential part of the same, FIG. 17 is an enlarged plan view of the essential part of the same, and FIG. 18 is an embodiment of the present invention. Overall overview side view of example, no. 19
The figure is a plan view of the main part of the above, FIG. 20 is an enlarged side view of the main part of the same, FIG. 21 is a schematic side view of another embodiment, and FIG. 22 is a plan view of the main part of the same. Fig. 23 is an enlarged side view of the main part of the above, Fig. 24, Fig. 25, Fig. 26, Fig. 27, Fig. 28, Fig. 29, Fig. 30, Fig. 31, Fig. 32, Fig. FIG. 33 is an explanatory diagram of a process of winding a plastic film around the circumferential surface of the bale. Further, FIGS. 34, 35, and 36 are explanatory views of each mode of the airtight holding means of the packaged bale. Further, FIG. 37 is an explanatory diagram showing the characteristics of the stretchable plastic film in relation to the tensile force and the elongation.
FIG. 38 is an explanatory view of the state when the plastic film is stretched over a long distance, FIG. 39 is an explanatory view of the state when stretched over a short distance, and FIG. 40 is a state during a short distance. It is explanatory drawing of the state which extended after preliminarily extending | stretching over a long distance. Further, FIG. 41 is a perspective view of the veil in which a plastic film is wrapped only around the body surface, FIG. 42 is a sectional view of the veil of the same as above, and FIG. 43 is a plastic for a veil formed from cut grass. Cross section of film wrapped, 44th
The figure is an illustration of a collapsed state of grass from the end face of the bale in the same state. Further, FIG. 45 is a perspective view of the veil in which a plastic film having a width wider than the circumferential surface of the bale is wrapped and covered and packaged up to the peripheral edge portion of the end face in the axial direction, and FIG. FIG. 47 is a cross-sectional view of the bales formed by cutting and processing grasses in the same state as above. Explanation of reference numerals A ... Roll baler, B ... Roll bale F / F '... Plastic film a ... Roll-up forming device, b ... Film feeding device f ... Both sides, t ... Twain, n ... net s ... sheet, 1 ... machine, 10 ... machine frame 11 ... hinge, 2 ... pickup device, 3 ... transfer device 4 ... bale forming chamber, 4a ... inlet, 50 ... … Tight chain 51 …… Tight bar, 52 …… Roller, 53 …… Guide roller 54 …… Belt, 500 …… Drive sprocket, 60 …… Roll 61 …… Feed roll, 62 …… Induction roll, 63 …… Frame 64 …… Supporting machine frame, 65 …… Transmission mechanism, 66 …… Brake plate 67 …… Brake arm, 68 …… Brake shoe, 69 ……
Drawing roll 7 ... Cutting mechanism, 70 ... Working shaft, 80 ... String 82 ... Conduction mechanism

Claims (3)

(57) [Claims] 1. A pip-up device for picking up agricultural crops such as grass, a transfer device for transferring the picked-up agricultural crops, and a roll forming device for receiving the agricultural crops to be transferred and rolling-in by means of a roll forming device. A bale forming chamber for forming a bale, a roll around which a stretchable plastic film is wound to be supplied to the circumferential surface of the bale formed in the bale forming chamber, and a film feeding device for feeding the plastic film from the roll. A device and a pre-stretching device that pre-stretches the plastic film fed from the film feeding device are provided, and is fed from the film feeding device to the circumferential surface of the bale formed into a roll in the bale molding chamber. Feeding the plastic film stretched by the pre-stretching device, the film feeding device and the circumferential surface of the bale. In between, further stretched while roll baler being characterized in that as winding. 2. A pick-up device for picking up agricultural crops such as grass and grass, a transfer device for transferring the picked-up agricultural crops, and a roll-shaped bale for receiving the transferred agricultural crops by a roll forming device. To form a bale forming chamber, a roll around which a stretchable plastic film having adhesiveness to be supplied to the body circumferential surface of the bale formed in the bale forming chamber is wound, and the plastic film is rolled from the roll. A film feeding device for feeding and a pre-stretching device for pre-stretching the plastic film fed from the film feeding device are provided, and the film feeding is performed on the body circumferential surface of the bale formed into a roll in the bale forming chamber. A film feeding device that feeds the plastic film drawn from the device and drawn by the preliminary drawing device. In a roll baler for winding while further stretching between the body circumferential surface of the bale, a plastic film fed out from the film feeding device, having a width wider than the entire width in the axial direction of the roll-shaped bale formed in the bale forming chamber. A roll baler as an extensible plastic film, wherein the roll baler is adapted to be wound around the entire width of the circumferential surface of the roll bale and the peripheral edge of the end face in the axial direction. 3. A roll-shaped bale by a pickup device for picking up agricultural crops such as grass and grass, a transfer device for transferring the picked up agricultural crops, and a roll forming device for receiving the agricultural crops transferred. To form a bale forming chamber, a roll around which a stretchable plastic film having adhesiveness to be supplied to the body circumferential surface of the bale formed in the bale forming chamber is wound, and the plastic film is rolled from the roll. A film feeding device for discharging,
A pre-stretching device for pre-stretching the plastic film fed from the film feeding device is provided, and on the circumferential surface of the bale formed into a roll shape in the bale molding chamber, the preliminary fed from the film feeding device. Feeding the plastic film stretched by the stretching device, between the film feeding device and the circumferential surface of the bale, in a roll baler that is wound while further stretching, in the roll-shaped bale from the film feeding device. A roll baler characterized in that a stretchable plastic film having a width narrower than an axial width is fed out and partially wound around a body circumferential surface of a roll-shaped bale in a bale forming chamber.