JP4595049B2 - Roll baler - Google Patents

Description

  The present invention relates to a hopper that receives a short molding material such as a forage crop that has been harvested and shredded, a conveyor that conveys the molding material received by the hopper, and a molding material that is conveyed by the conveyor. The present invention relates to a roll baler including a bale forming chamber for forming a roll bale, and more particularly to a roll baler improved so as to prevent collapse of a shoulder portion of the roll bale.

  The roll baler has a bale forming chamber provided with a plurality of rollers arranged in an annular shape in order to compress a material to be formed having a low density while rotating it and form it into a cylindrical roll bale.

  A roll baler is generally connected to the rear of a tractor or the like and pulled, and includes a pick-up device that picks up a molding material such as cut crops by itself, and a molding material without a pickup device. There is a thing provided with the hopper which accepts (for example, refer to patent documents 1 and 2).

  The hopper is shredded by a forage harvester that runs along with the roll baler and is fed with a molding material such as a feed crop discharged from the blower. In this case, since the molding material blown from the blower into the hopper from the lateral direction is biased to one of the left and right in the hopper, the portion to which the molding material blown from the forage harvester in the hopper hits, A collision plate is provided for distributing the material to be molded into the bale molding chamber. The collision plate is formed in parallel with the side wall of the hopper (see, for example, Patent Document 1).

  Also, with roll bale molded with shredded molding material, the molding material collapses from the shoulder and the loss significantly increases, and in severe cases it may not be possible to maintain the shape of the roll bale. In order to prevent this, a stretchable sheet-like packaging material having a net shape or adhesiveness wider than the width of the roll bale formed in the bale molding chamber is used. The roll baler is provided with a packaging device that covers the outer peripheral surface and the shoulder portion over the part (see, for example, Patent Document 1).

Japanese Patent Laying-Open No. 2001-8525 (FIGS. 3, 4, and 6) JP 2003-143936 A (FIGS. 6 and 12) Utility Model Registration No. 2508503

  However, since the collision plate is formed in parallel with the side wall of the hopper, it differs from the blow angle of the molding material. For this reason, the amount of left and right distribution changes due to fluctuations in the momentum and amount of the material to be molded, and the left and right portions cannot be fed into the bale molding chamber in a balanced manner. For this reason, there is a problem that the shape of the roll veil is distorted and it is difficult to maintain the moldability.

  In addition, even when packed with the above-described packaging material, when the roll bale is molded with a material to be cut as short as about 10 mm, there is no entanglement between the materials, so the collapse from the shoulder portion of the roll bale is There was also a problem that it occurred frequently and the increase in loss could not be prevented.

  Therefore, the present invention has been devised to solve the above problems, and an object of the present invention is to provide a roll baler that can prevent the shoulder portion of the roll bale from collapsing and maintain formability.

To achieve the above object, the present invention provides a hopper that receives a short molding material such as a forage crop that has been harvested and shredded, a conveyor that conveys the molding material received by the hopper, and the conveyance A bale forming chamber for forming the material to be formed conveyed by a conveyor into a roll bale, and a lower part of the hopper is formed in a long box shape in the front and rear, and a rear part is opened toward the bale forming chamber. an outlet, in roll baler provided the transfer conveyor extends from near the front end of the hopper to inner bottom portion of the hopper to a position facing the inlet of the bale forming chamber, the conveyor above the upper Ki搬 outlet side, the auger to the the molded material in the hopper is moved distributed to left and right end sides of the bale forming chamber provided so as to rotate the roller in the same direction of the conveyor In both cases, a layer of the molding material that cannot be distributed to the left and right ends is formed between the conveyor and the conveyance conveyor so that the molding material on this layer is distributed to the left and right ends by the auger. open which is a roll baler provided.

  The auger is preferably provided with a left turning screw and a right turning screw on both sides in the axial direction.

  Further, the molding material put into the hopper is prevented from dropping on the auger in front of and above the auger, and the molding material is guided to the upstream side of the auger position of the conveyor. What provided the cover board for doing is preferable.

  Furthermore, it is preferable that the cover plate is provided with a mountain-shaped inclined plate for distributing the molding material put into the hopper to both sides in the width direction of the conveyor.

  Further, it is preferable that the angled inclined plate is formed so that the ridge line thereof is along the feeding direction of the molding material to be fed into the hopper.

Furthermore, a tension pulley for adjusting the tension of the V-belt by pressing the V-belt for driving the conveyor, and expansion and contraction to move the tension pulley in a direction in which the tension pulley is pressed against the V-belt or in a direction away from the V-belt. It is preferable to include an electric actuator formed so as to be drivable and a control device that alternately extends and retracts the electric actuator to intermittently drive the transport conveyor .

  According to the present invention, an excellent effect is exhibited in that collapse of the shoulder portion of the roll bale can be prevented and moldability can be maintained.

  The best mode for carrying out the present invention will be described below in detail with reference to the accompanying drawings.

  As shown in FIGS. 1 and 2, the roll baler 1 according to the present embodiment is formed by compressing a short molding material such as a feed crop that has been harvested and shredded to a length of about 10 mm while rotating it. The roll bale 24 is formed, and includes a traction frame 2, a roll baler body 3, and a hopper 4.

  The traction frame 2 includes a connecting rod 5 for connecting to a traction vehicle (not shown) such as a tractor at the front end thereof. The rear portion of the traction frame 2 is integrally connected to a roll baler support frame 6 that supports the roll baler body 3. A hopper 4 is mounted on the upper part of the traction frame 2. A pair of wheels 7 are provided below the roll baler support frame 6.

  An intermediate bearing 8 is provided below the front portion of the traction frame 2, and a gear box 9 is provided below the rear portion. A front power joint 11 whose front end is connected to the PTO shaft of the towing vehicle is connected to the front surface of the intermediate bearing 8, and a rear power joint 12 whose rear end is connected to the gear box 9 is connected to the rear surface of the intermediate bearing 8. It is connected. As a result, the driving force from the PTO shaft of the towing vehicle is transmitted to the gear box 9 via the front power joint 11, the intermediate bearing 8 and the rear power joint 12.

  As shown in FIG. 3, the gear box 9 includes an input shaft 13 to which the rear power joint 12 is connected, and left and right output shafts 16 and 17 that extend to the left and right. The gear box 9 takes in the power transmitted from the input shaft 13 and rotates the left and right output shafts 16 and 17 provided inside the cylindrical left and right housings 14 and 15 to drive the left and right input shafts 13 and 15. Output shafts 16 and 17 are connected to each other via bevel gears (not shown).

  The gear box 9 is integrally connected and fixed to the traction frame 2 located on the left and right sides via the left and right housings 14 and 15.

  As shown in FIG. 2, the roll baler body 3 has a plurality of rollers 21 arranged between the left and right side plates 18, 19 and arranged in an annular shape, and the roller 21 and the left and right side plates 18, 19. The bale molding chamber 22 is partitioned and formed. The roller 21 is disposed so that an annular front portion is opened, and the opening 21 serves as an intake port 23 for taking in a material to be molded with the opening cut into pieces. A material to be molded is taken into the bale molding chamber 22 from the intake port 23 and compressed while rotating to form a cylindrical roll bale 24.

  A net winding device 25 for supplying a net into the bale molding chamber 22 is provided at the rear part of the roll baler body 3. The roll bale 24 is formed into a predetermined size in the bale forming chamber 22, and then supplied with a net by a net winding device 25, and the outer periphery is packed by rotating with the net. Then, by opening the openable / closable gate 26 comprising a part of the roller 22 and the left and right side plates 18 and 19 constituting the rear half of the bale molding chamber 22, the packed roll bale 24 is discharged to a field or the like. Is done.

  As shown in FIG. 3, the power to the roll baler body 3 is supplied from the sprocket 27 provided on the left output shaft 16 of the gear box 9 via the chain 28 wound around the sprocket 27 to the intake port of the bale molding chamber 22. 23 is transmitted to a sprocket 29 provided on a roller 21 provided at a lower portion of 23. The adjacent rollers 21 are connected to each other by a chain and a sprocket (both not shown) so as to rotate in the same direction, and the roller 21 is rotated by the power transmitted to the roller 21 provided below the intake port 23. The entire 21 rotates in the same direction.

  As shown in FIGS. 1 and 2, the hopper 4 has an upper hopper 31 and a lower hopper 32 and is placed on the traction frame 2. The lower hopper 32 has a vertical front wall 33, a left wall 34, and a right wall 35, and the molding material received by the upper hopper 31 is input to the inlet 23 of the bale molding chamber 22 at the inner bottom thereof. A transport conveyor 36 for transporting is provided, and is formed in a box shape with a transport outlet 37 opened toward the bale molding chamber 22 at the rear part.

  The transport conveyor 36 has a driving roller 38 provided at the lower portion of the rear carry-out port 37 and a driven roller 39 provided at the front. The conveyor belt 41 is connected to the driving roller 38 and the driven roller 39. It is wrapped around.

  The driven roller 39 is pivotally supported so as to be movable and fixed in the longitudinal direction of the long holes 40 formed in the left wall 34 and the right wall 35, respectively. When the conveyor belt 41 is extended due to long-time use, the slack of the conveyor belt 41 is removed by moving the driven roller 39 in the long hole 40, and its tension is adjusted.

  As shown in FIG. 3 and FIG. 4, the driving roller 38 is bridged between bearings 43 provided at the lower part of the outlet 37 of the left wall 34 and the right wall 35. On the surface of the driving roller 38, anti-slip grooves 44 that extend in the roller axis direction and prevent the conveyor belt 41 from slipping are formed at a predetermined pitch in the circumferential direction. A driven pulley 45 is provided at the right end of the drive roller 38. A V belt 47 is wound around the driven pulley 45 and a driving pulley 46 provided on the right output shaft 15 of the gear box 9. The power from the gear box 9 is transmitted to the drive roller 38 via the right output shaft 15, the drive pulley 46, the V belt 47 and the driven pulley 45.

  As shown in FIGS. 6 and 7, an intermittent drive mechanism 61 is provided below the transport conveyor 36 to enable the transport conveyor 36 to be intermittently driven. The intermittent drive mechanism 61 includes a tension pulley 62 that presses the V belt 47 and an electric actuator 63 that moves the tension pulley 62. The tension pulley 62 is pivotally supported by one end of an L-shaped arm 65 that is rotatably provided on the right wall 35 via a support shaft 64. A swing block 67 provided at the tip of the electric actuator 63 is attached to the other end of the L-shaped arm 65.

  A block 69 is fixed to the tip of the rod 68 of the electric actuator 63, and a guide plate 71 and a bolt 72 are provided in the block 69 so as to extend in the extending direction of the rod 68. A long hole 73 extending in the longitudinal direction is formed in the guide plate 71. The swing block 67 is formed with a slide hole 70 into which the bolt 72 is inserted. The slide hole 70 extends from the bolt 72 side to the guide plate 71 side and passes through the elongated hole 73, and the other end of the L-shaped arm 65. It is fixed to. The bolt 72 is provided with a spring 75 between a nut 74 and a swing block 67 screwed to the bolt 72 in order to bias the swing block 67 toward the tip end side of the bolt 72. A nut 76 for preventing the swing block 67 from separating from the bolt 72 is screwed to the tip of the bolt 72.

  A base end portion of the electric actuator 63 is swingably attached to a bracket 77 fixed to the traction frame 2 via a support shaft 78.

  According to the above configuration, when the rod 68 of the electric actuator 63 extends, the swing block 67 is pushed toward the distal end side, and the L-shaped arm 65 rotates counterclockwise as indicated by the arrow in FIG. The tension pulley 62 is pressed against the V belt 47, and sufficient frictional force is generated between the V belt 47 and the driven pulley 45 and the driving pulley 46, and the power is transmitted from the driving pulley 46 to the driven pulley 45. The On the other hand, when the rod 68 of the electric actuator 63 retracts, the swing block 67 returns to the base end side, the L-shaped arm 65 rotates clockwise, the tension pulley 62 moves away from the V belt 47, and the V belt. Since the frictional force between 47 and the driven pulley 45 and the driving pulley 46 is reduced, the transmission of power from the driving pulley 46 to the driven pulley 45 is interrupted.

  The vibration from the V-belt 47 during power transmission is transmitted to the tension pulley 62, but can be absorbed by the spring 75. Therefore, the vibration can be prevented from being transmitted to the electric actuator 63, and the damage can be prevented.

  Even when the V-belt 47 is extended due to prolonged use, the spring 75 biases the L-shaped arm 65 in the counterclockwise direction, so that the tension adjustment of the V-belt 47 is automatically performed. To be done.

  As shown in FIGS. 2 to 6, an auger 51 is provided above the conveyor belt 41 on the side of the carry-out port 37 of the lower hopper 32. The auger 51 distributes and moves the molding material in the hopper 4 to the left and right ends of the roller molding chamber 22. The auger 51 is bridged between bearings 52 provided in the vicinity of the outlet 37 of the left wall 34 and the right wall 35, respectively. The auger 51 has a rotating shaft 53, and on both sides in the axial direction of the rotating shaft 53, a left turning screw 54 that moves the molding material conveyed by the conveyor belt 41 leftward and a right that moves rightward. A turning screw 55 is provided.

  A driven sprocket 56 is provided at the right end of the auger 51. A chain 58 is wound around the driven sprocket 56 and a drive sprocket 57 provided on the right output shaft 15 of the gear box 9. The power from the gear box 9 is transmitted to the auger 51 through the right output shaft 15, the drive sprocket 57, the chain 58 and the driven sprocket 56.

  The auger 51 rotates in the same direction as the driving roller 38 and the driven roller 39 of the transport conveyor 36, and moves the molding material on the transport conveyor 36 to the left and right. As a result, a large amount of molding material is taken into the left and right side portions of the bale molding chamber 22 that forms the shoulder of the roll bale 24.

  As shown in FIG. 6, the right wall 35 is provided with a tension roller 59 that contacts the chain 58 and adjusts the tension by pressing the chain 58. The tension roller 59 is provided so as to be movable in a direction crossing the traveling direction of the chain 58.

  As shown in FIGS. 1 and 2, the upper hopper 31 is provided above the lower hopper 32. The upper hopper 31 has a front wall 81 and a rear wall 82 (see FIG. 4) arranged vertically, and a left wall 83 and a right wall 84 arranged obliquely so that the upper part opens.

  The connecting portion between the front wall 81 and the right wall 84 is continuously formed with a notch 85 that is open at the top, forming a blow-in space for the molding material blown from the forage harvester running side by side on the right side. ing.

  As shown in FIGS. 1 and 3 to 5, a collision plate 86 is provided in the upper hopper 31 to receive the material to be molded blown into the upper hopper 31 and drop it onto the transport conveyor 36. The collision plate 86 includes a right collision plate 87 extending from the right wall 84 in the width direction of the hopper 4 (parallel to the rear wall 82), and a left extending from the left wall 83 in a direction perpendicular to the blowing direction of the molding material. It consists of a collision plate 88. The right collision plate 87 and the left collision plate 88 are formed by bending a single plate material into a letter shape in plan view (see FIG. 5), and the end of the right collision plate 87 is bolted to the right wall 84 (see FIG. The end of the left collision plate 88 is attached to the left wall 83 with a bolt (not shown) or the like. The right collision plate 87 has a width that is 1/3 of the width of the lower hopper 32, the front-rear position thereof is in front of the auger 51, and the lower end portion is located in a portion higher than the auger 51. Although not shown, an upper collision plate extending above the upper end of the upper hopper 31 may be provided above the left collision plate 88. According to this, even if the to-be-molded material blowing force from the forage harvester is too strong and the to-be-molded material tries to exceed the left collision plate 88, the to-be-molded material can be dropped into the hopper 4.

  At the lower end of the collision plate 86, the molding material put into the hopper 4 is prevented from dropping onto the auger 51, and the molding material is guided upstream from the position of the auger 51 of the transport conveyor 36. A cover plate 89 is provided for dropping. The cover plate 89 is disposed to be inclined so that the front right side is downward, and is fixed to the lower end portions of the right collision plate 87 and the left collision plate 88 by bolts (not shown) or the like. The cover plate 89 connects the lower end of the intersection between the right wall 84 and the right collision plate 87, the lower end of the intersection between the right collision plate 87 and the left collision plate 88, and the lower end of the intersection between the left collision plate 88 and the left wall 83. It is formed in a triangular shape.

  On the upper surface of the cover plate 89, there are provided angled inclined plates 91 for distributing the material to be molded put into the hopper 4 to both sides in the width direction of the transport conveyor 36. The inclined plate 91 is formed so that the ridgeline 92 is along the feeding direction of the molding material to be fed into the hopper 4 (approximately from the right front to the left rear). Since the front end portion 93 of the ridgeline 92 of the inclined plate 91 is positioned at the center of the hopper 4 in the width direction, and the lower portion of the ridgeline 92 extends in a mountain shape, the molding material blown from the forage harvester is transported. A large amount can be guided and dropped on both sides in the width direction (left and right) on the conveyor 36.

  Next, the work procedure of the roll baler 1 having the above configuration and the operation and action of each device will be described with reference to the explanatory diagram of FIG.

  First, the roll baler 1 and the forage harvester are integrally connected to the tractor. Then, the tractor operator operates the PTO lever of the tractor to drive the PTO shaft. Then, the roller 21 and the auger 51 in the bale molding chamber 22 are activated. At the same time, the forage harvester is also activated.

  Subsequently, a work start switch (conveyor operation SW) is turned on in the operation box of the roll baler 1 provided in the tractor driver's seat. Then, the electric actuator 63 is extended, the conveyor belt 41 of the transport conveyor 36 is rotated, and preparations for harvesting the feed vegetated on the farm field are completed.

  The tractor is run and the forage (for example, grass or corn) vegetated in the field is harvested by the forage harvester. In the forage harvester, the feed is shredded to about 10 mm to form a molding material, and the molding material is blown out from the chute into the hopper 4. The chute of the forage harvester can turn left and right with respect to the vertical line, and a deflector that can turn up and down is provided at the tip of the chute, so that the molding material can be blown out toward the inclined plate 91. .

  At this time, the molding material thrown into the hopper 4 is distributed to the left and right sides with respect to the ridgeline 92 of the inclined plate 91, slides on the cover plate 89, and falls onto the transport conveyor 36. Here, since the inclined plate 91 is formed such that the ridgeline 92 is along the blowing direction of the molding material, the blowout distance of the molding material varies due to the blowing strength from the forage harvester. Also, the ridgeline 92 of the inclined plate 91 is always located at the center of the molding material blown out. Therefore, the material to be molded can be divided into left and right equal parts.

  The material to be molded that has fallen on the transport conveyor 36 is transported to the inlet 23 side of the bale molding chamber 22 by the rotation of the conveyor belt 41. At this time, the material to be molded on the conveyor belt 41 is further moved by the auger 51 toward both ends in the width direction. Since the auger 51 is provided with a left turning screw 54 and a right turning screw 55 at both ends, the material to be molded can be distributed to the left and right sides only by rotating in the same direction with a single rotating mechanism. .

  Since the auger 51 is provided above the conveyor belt 41 with a gap, the material to be molded having a thickness corresponding to the gap on the conveyor belt 41 passes through the lower part of the auger 51 without being distributed. Only the molding material above the thickness is distributed to the left and right. As a result, an appropriate amount of the molding material remains in the central portion in the width direction, and the molding material is dispersed in a balanced manner in the width direction.

  The molding material taken into the bale molding chamber 22 from the intake port 23 is compressed while being rotated by the roller 21 to form a cylindrical roll bale 24. At this time, since the molding material is distributed to both the left and right side portions, the shoulder portion of the roll bale 24 to be molded has a high density, is strongly compressed, hardly collapses, and can retain the moldability. .

  When the roll bale 24 in the bale forming chamber 22 reaches a predetermined size and density, the gate 26 is slightly pushed open, and by detecting the opening degree, the completion of forming the roll bale 24 is detected and a buzzer sounds. The operator who has heard this presses the conveyor stop SW. As a result, the electric actuator 63 is degenerated, the transmission of power to the drive roller 38 that drives the conveyor belt 41 is interrupted, and the conveyor conveyer 36 stops. Thus, the supply of the molding material to the bale molding chamber 22 is stopped.

  Next, the operator turns on the net feeding drive SW. As a result, the net feeding roller 30 of the net winding device 25 is driven, and net feeding is started. The net is fed out and wound around the peripheral surface of the roll bale 24 rotating in the bale forming chamber 22, and the net is pulled between the rollers 21 and the roll bale 24, and the net feeding roller 30 of the net winding device 25. Even if the drive is stopped, the net feed continues. Note that the rotation of the net feeding roller 30 is stopped by a timer of a control device (not shown). Since the one-way clutch is incorporated in the net feeding roller 30, it is rotated while being pulled by the net even when driving is stopped.

  Since the number of nets wound around the roll bale 24 and the number of revolutions of the net feeding roller 30 are proportional, the number of revolutions of the net feeding roller 30 is counted and the knife clutch is operated when the predetermined number of revolutions is reached. The net is cut, the net feeding roller 30 is stopped, and the net winding work is finished.

  Next, the gate opening SW is turned on, the gate 26 is opened, and the roll bale 24 is discharged out of the machine.

  The completed roll bale 24 is strongly compressed by particularly increasing the density of the shoulder portion where breakage is likely to occur, so that the breakage can be prevented and the moldability can be kept high. Moreover, since no collapse occurs, no loss occurs.

  Then, the gate closing SW is turned on to close the gate 26. Thus, when the preparation for the next bale forming operation is completed and the conveyor operation SW is turned on again, the transfer conveyor 36 is operated and the bale forming operation is started.

  While the operation of the transport conveyor 36 is stopped and the net winding work and the roll bale 24 discharging work are performed, the molding material harvested and shredded by the forage harvester is blown out and stored in the hopper 4. ing. Thus, the harvest shredding operation can be performed continuously without interruption.

  Here, the amount of the molding material stored in the hopper 4 is large, and when the conveying conveyor 36 is operated, a lump of the molding material is supplied over the auger 51 or is bridged in the hopper 4. When the supply is delayed, the operator turns on the conveyor intermittent operation SW. Then, the electric actuator 63 alternately repeats expansion and contraction, and the conveyer 36 is intermittently operated (intermittent driving). Accordingly, vibration can be applied to the material to be molded, so that the bridge can be broken and stable supply can be performed. In addition, when the actual supply amount is more than the supply amount corresponding to the rotational speed of the molding material in the bale molding chamber 22, the supply amount can be limited by the intermittent operation (intermittent drive) of the transport conveyor 36. A stable roll veil 24 can be formed. When the bridge collapses or the excessive supply ends, the conveyor intermittent operation SW is turned off.

  The repetitive operation of expansion and contraction of the electric actuator 63 is performed by a microcomputer program incorporated in the control device.

  This intermittent operation (intermittent drive) of the conveyor 36 is particularly effective when a large amount of material to be molded is received by a bonnet wagon or a loader bucket and put into a hopper of a roll baler where the material is placed.

  According to the above-described work procedure, each switch operation after the work start switch (conveyor operation SW) is turned on is manually performed. However, the above-described control device switches each switch by switching to the fully automatic mode. It is also possible to perform the operation automatically.

It is the perspective view which showed suitable embodiment of the roll baler which concerns on this invention. It is the side view which showed suitable embodiment of the roll baler which concerns on this invention. It is front sectional drawing which showed suitable embodiment of the roll baler which concerns on this invention. It is principal part side surface sectional drawing which showed suitable embodiment of the roll baler which concerns on this invention. It is a principal part plane sectional view showing a suitable embodiment of a roll baler concerning the present invention. It is principal part side surface sectional drawing which showed suitable embodiment of the roll baler which concerns on this invention. It is a principal part plane sectional view showing a suitable embodiment of a roll baler concerning the present invention. It is explanatory drawing which showed the work procedure of the roll baler which concerns on this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Roll baler 4 Hopper 22 Bale molding chamber 24 Roll bale 36 Conveyor 37 Unloading 51 Auger 54 Left turn screw 55 Right turn screw 89 Cover plate 91 Inclined plate 92 Ridge line

Claims (6)

A hopper that receives a short molding material such as a forage crop that has been harvested and shredded, a conveyor that conveys the molding material received by the hopper, and a roll bale that conveys the molding material conveyed by the conveyor A bale molding chamber for molding the hopper, the lower part of the hopper is formed in a box shape that is long in the front and rear, and has a carry-out port that is opened toward the bale molding chamber in the rear part. in the inner bottom extends from near the front end of the hopper to a position facing the inlet of the bale forming chamber provided in the section roll baler, the conveyor above the upper Ki搬 outlet side, the bale chamber the molded material in the hopper of the auger to be distributed moved to both left and right ends, provided with so as to rotate the roller in the same direction of the conveyor, the left and right between the conveyor Forming a layer of the molding material is not distributed to the end side, and is characterized in that the molded material on this layer have spaced from conveyor to be distributed to both left and right ends in the auger Roll baler.   The roll baler according to claim 1, wherein the auger includes a left turning screw and a right turning screw on both axial sides thereof.   In order to prevent the molding material thrown into the hopper from dropping on the auger in front of the auger and to guide the molding material to the upstream side of the auger position of the conveyor. The roll baler according to claim 1 or 2, further comprising a cover plate.   The roll baler according to claim 3, wherein the cover plate is provided with a mountain-shaped inclined plate for distributing the molding material put into the hopper to both sides in the width direction of the conveyor.   The roll baler according to claim 4, wherein the angled inclined plate is formed so that a ridge line thereof is along a feeding direction of the molding material to be fed into the hopper. A tension pulley for adjusting the tension of the V-belt by pressing the V-belt for driving the conveyor, and a telescopic drive to move the tension pulley in the direction of pressing against the V-belt or away from the V-belt The roll baler according to any one of claims 1 to 5 , further comprising: an electric actuator formed on the upper surface of the motor and a control device that alternately expands and contracts the electric actuator to intermittently drive the transport conveyor .

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