JP4107944B2 - Blow guide device for molding material in hopper of roll baler - Google Patents

Description

[0001]
[Technical field to which the invention belongs]
The present invention is a roll baler that feeds a material to be molded such as feed crops into a forming chamber mounted on the airframe and forms it into a roll bale, and the airframe is not provided with a pickup device for picking up the material to be formed. Instead of the pick-up device, a hopper that receives the molding material is mounted, and the hopper is cut and harvested by a harvester, shredded, and blown out from the harvester's discharge chute and then discharged. The present invention relates to an improvement on a roll baler that is temporarily stored, discharged sequentially from a discharge port at the bottom of the hopper, and sent to a forming chamber for forming.
[0002]
[Prior art]
More specifically, the roller baler A of the above-described form is an example of a towed type. Normally, as shown in FIGS. 1 to 3, the front side of the vehicle body 1 that travels by the traveling wheels 10. A hopper 2 for receiving a material to be molded is formed in a box shape that is long in the front-rear direction, and a funnel shape in which a discharge port 20 formed on the bottom surface as an inclined wall that slopes downward on the front-side wall surface downward is formed in the bottom surface. The conveyor 3 for conveying the molding material discharged from the rear of the discharge port 20 is mounted on the upper surface on the rear side of the machine body 1. 3, the molding chamber 4 for receiving the molding material conveyed to the receiving port 40 and molding it into the roll veil R is mounted with a molding device 41 installed in the molding chamber 4. 40 and 40 after the molding in the molding chamber 4 is completed. The feeding mechanism 5 for feeding the twine or net n for tight binding packing circumferential surface of Ruberu R is constituted by mounted.
[0003]
And this roll baler A is harvested by the harvester H mounted on the side surface of the vehicle body of the tractor T to which the airframe 1 is connected and pulled as shown in FIG. The material to be molded discharged by the chute a is received in the hopper 2 and temporarily stored, and is then sent from the discharge port 20 to the molding chamber 4 by the conveyor 3 and then formed into a roll bale R. The
[0004]
[Problems to be solved by the invention]
The roll baler in the form of receiving the above-described material to be molded into the hopper, sequentially discharging it from the discharge port at the bottom of the hopper, sending it into the molding chamber by the conveyor, and forming into a roll bale is discharged from the discharge port of the hopper. When the material to be molded is supplied to the molding chamber by the material being fed into the molding chamber by the conveyor, the shape of the roll bale molded in the molding chamber becomes irregular. There is a problem that high-quality fermented silage cannot be obtained by storage after wrapping and sealing with a film.
[0005]
This problem is due to the uneven deposition of the material to be molded that has been fed into the hopper from the harvester chute. For this reason, in the past, the material blown out from the harvester chute. When the molding material to be molded is put into the hopper, the deposition direction of the molding material that is blown into the hopper and deposited is equalized in the blowing direction of the chute that blows the molding material into the hopper. So that the operation of changing and adjusting is always performed.
[0006]
However, the operation of changing and adjusting the blowing direction of the chute is a troublesome work because it is possible to modify the material evenly while observing the deposition state of the molding material blown into the hopper. There is a problem.
[0007]
The present invention has been made to solve this problem occurring in the roll baler of the above-described form, and without changing the adjustment of the blowing direction of the chute for blowing the molding material into the hopper, the chute It is an object of the present invention to provide a new means capable of stacking the material to be blown out from the chute so that the material to be blown out is evenly deposited in the hopper even if the blowing direction is kept constant.
[0008]
[Means for Solving the Problems]
In order to achieve the above-mentioned object, in the present invention, the hopper 2 mounted on the body 1 in the roll baler of the above-described form is provided with a material to be molded by a chute a that faces obliquely rearward from the front side on the side. Are formed on a side receiving plate 8 along the front-rear direction and a rear receiving plate 9 along the left-right direction in plan view. Are installed in such a manner that the side receiving plate 8 along the front-rear direction is positioned on the front side of the rear receiving plate 9 in the left-right direction, and the molding material collides with the lower edge of the side receiving plate 8 in the front-rear direction. A plurality of strip-shaped guide pieces 81 are formed in parallel in the front-rear direction below the incoming part, and the guide pieces 81 are alternately bent in the left direction and the right direction in the parallel order. And Is intended to raise the blowing guide device roll baler of the hopper, characterized in that it has So設 dispersion collision guiding device w of molding formed by so as to form an upper shape of the wafer in the backward view.
[0009]
Further, a material to be molded discharged from a chute a heading obliquely rearward in a plan view from the front side to the side is blown into the hopper 2 in the hopper 2 mounted on the body 1 in the roller baler of the above-described form. A receiving plate that receives the molding material by colliding with the portion is formed on a side receiving plate 8 along the front-rear direction and a rear receiving plate 9 along the left-right direction in plan view, and these are formed on the rear receiving plate 9. A plurality of strips are mounted on the side receiving plate 8 on the lower edge below the portion where the molding material blown from the chute a collides with the side receiving plate 8 so that the side receiving plate 8 is positioned on the front surface. The guide pieces 81 are arranged in parallel in the front-rear direction, and the guide pieces 81 are alternately bent in the left-right direction and the right-hand direction in the parallel order, and formed into a C shape in the front-rear direction view. Collision plan The apparatus w is installed, and the rear receiving plate 9 has an inverted V shape in the front-rear direction so that the molding material that collides with it is dropped in the left-right direction and the front-rear direction, and the upper edge is the front in the side view A roll baler hopper characterized in that the auxiliary guide device y having a shape inclined downward toward the bottom is disposed below the distributed collision guide device w installed on the lower edge of the side receiving plate 8 described above. Further, in the first means described above, the side receiving plate 8 to be mounted on the hopper 2 is formed separately from the left side wall of the hopper, and is slightly different from the left and right central portions in the hopper. A roll baler hopper blow-in guide device is provided, which is disposed so as to protrude forward from the front surface of the rear receiving plate 9 at a portion closer to the left side.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
Next, embodiments will be described with reference to the drawings of the embodiments.
4 is a plan view of a roll baler A for carrying out the means of the present invention, FIG. 5 is a partially broken side view of the roll baler A, wherein 1 is a machine body, 2 is a hopper, 3 is a conveyor, 4 is In the molding chamber, 5 is a feeding mechanism, 6 is an agitator, 8 is a side receiving plate provided on the hopper 2, 9 is a rear receiving plate, w is a distributed collision guide device, and y is an auxiliary guide device.
[0011]
The body 1 is a frame for supporting the hopper 2 and the molding chamber 4 and the like, and may be configured in an appropriate shape and structure. In this example, the body 1 is formed in a body frame shape that can be traveled by the traveling wheels 10.
[0012]
The roll baler A in this example is a towed type, and the front end side of the airframe 1 is equipped with a connecting rod 11 and a joint portion of an input shaft 12 which is a universal joint shaft 13. 3, the front end of the connecting rod 11 is connected to the connecting hitch t installed on the rear surface of the vehicle body of the tractor T as shown in FIG. 3, and the universal joint shaft 13 is connected to the PTO shaft of the tractor T. 4. As shown in FIG. 5, the vehicle is driven by the tractor T and is driven by the prime mover on the tractor T side.
[0013]
However, it is needless to say that the airframe 1 may be configured as a self-propelled roll baler by mounting a prime mover on it and thereby driving the traveling wheels 10 and driving the respective working units.
[0014]
The hopper 2 is cut and harvested by, for example, a harvester H connected to the side surface of the tractor T that pulls the body 1 of the roll baler A, as in the embodiment shown in FIGS. 4 and 5 described above. The shredded material to be shredded in a casing storing the cutting mechanism provided in the body of the harvester H, and discharged and discharged by a discharge chute a connected to the casing. The forming chamber 4 is received by the conveyer 3 that is received from the opening 21 opened to the upper surface side, temporarily stored, discharged sequentially from the discharge port 20 opened to the bottom surface, and disposed below the discharge port 20. It is for sending into the receiving port 40, the opening 21 of the upper surface side which receives a molding material opens widely, and the bottom part side which discharges a molding material The shape of the funnel-shaped box with the discharge port 20 narrowed and mounted at an appropriate position on the machine body 1 may be corrected in the same manner as the previous one, and the illustrated embodiment In the example, the airframe 1 is mounted on a portion of the upper surface of the airframe 1 that approaches the front side. A plurality of agitators 6 each having a configuration in which a stirring blade 61 is provided on the peripheral surface of the rotary shaft 60 that crosses the lumen of the hopper 2 are supported in parallel in a portion of the hopper 2 that is located above the discharge port 20. It is.
[0015]
Thus, as shown in FIG. 4, for example, as shown in FIG. 4, the left and right sides of the hopper 2 are inserted into the hopper 2 that is formed on the funnel-shaped box-type carrier and mounted on the body 1. The harvester H is positioned on the side, and the chute a is blown out of the molding material from the deflector b provided at the end of the tube so that the top surface of the hopper 2 is viewed from the front side on one side to the other side in plan view. The hopper 2 is filled with a shredded material to be blown out from the tube tip of the chute a so as to cross the rearward direction. A receiving plate is provided at a position where the molding material blown out from the chute a jumps in and receives the molding material by colliding with the molding material.
[0016]
The receiving plate includes a side receiving plate 8 along the front-rear direction of the machine body 1 so as to receive the molding material blown out from the chute a on the side surface, and a lateral direction of the machine body 1 so as to receive the molding material on the front surface. Two receiving plates with the rear receiving plate 9 are used.
[0017]
The side receiving plate 8 and the rear receiving plate 9 are mounted on the hopper 2 by providing an appropriate assembling member on the hopper 2, and at this time, the upper edge side thereof is the left and right sides of the hopper 2. It may be installed so as to protrude higher than the upper edges of the side walls 2a and 2b and the rear wall 2c. Rather, by doing so, the material to be collided is scattered above the collision site. However, it is desirable because it prevents overhanging and jumping out of the hopper 2.
[0018]
In the side receiving plates 8, these receiving plates 8, 9 are usually inclined guide walls inclined outward so as to receive the molding material blown from the chute a of the harvester H and guide it to the inside of the hopper 2. The left side wall 2b of the hopper 2 having 2d formed at the upper edge may be installed by extending upward, but it is formed separately from the left side wall 2b of the hopper 2. As shown in FIG. 7, the hopper 2 is positioned close to the left and right center line L, and is supported by the support member 80 provided on the inclined guide wall 2d at the upper edge of the left side wall 2b. It is effective to assemble and support the hopper 2.
[0019]
Further, even in the rear receiving plate 9, it is formed separately from the rear wall 2c of the hopper 2 and is arranged at a position positioned in front of the rear wall 2c in plan view so that it is attached to the hopper 2 by an appropriate support member. As shown in FIG. 6, the rear wall 2c of the hopper 2 is used as a supporting machine frame, and the upper wall of the rear wall 2c is assembled so as to stand up from there. The assembly 90 may be supported by the member 90 and joined to the rear end surface of the side receiving plate 8 to reinforce the assembly, so that the assembly can be installed integrally with the rear wall 2c of the hopper 2. .
[0020]
When this is done, the rear receiving plate 9 shares the upper half side of the rear wall 2 c of the hopper 2 as the lower half side of the rear receiving plate 9.
[0021]
And in these side surface receiving plate 8 and rear surface receiving plate 9, in the side surface receiving plate 8, below the part where the molding material blown out from the chute a of the harvester H collides with the lower edge thereof. Are provided with a plurality of vertical cuts at predetermined intervals in the front-rear direction so that the strip-shaped guide pieces 81 are formed side by side in the front-rear direction. With the upper end as a bending point, the left and right sides are alternately bent in the parallel order, and formed into a square shape as shown in FIG. 7 when viewed in the front-rear direction, thereby forming the distributed collision guide device w. To do.
[0022]
In this distributed collision guide device w, a plurality of strip-shaped or toothed guide pieces 81 arranged in parallel in the front-rear direction protrude in an oblique manner to the left and right sides of the side surface receiving plate 8 alternately. It becomes the shape which makes a letter C shape in a direction view, and is the lower edge of the side surface receiving plate 8 at a portion below the position where the molding material blown from the chute a collides. As long as it is installed, it is assembled separately from the side receiving plate 8, and a notch is formed in the lower edge of the side receiving plate 8 at a position below the portion where the molding material collides. And you may make it assemble | attach to the dispersion | distribution collision guide apparatus w which consists of the guide piece 81 in parallel formed and assembled there separately.
[0023]
In addition, the rear receiving plate 9 has a front portion of the rear receiving plate 9 below a portion where the molding material blown out from the chute a collides, and below the distributed collision guiding device w installed on the side receiving plate 8. The auxiliary guide device y, which is formed by bending the plate member 91 and forming an inverted V shape when viewed in the front-rear direction and a shape in which the upper edge is inclined downward toward the front when viewed from the side, is mounted on the portion. .
[0024]
At this time, as shown in FIG. 7, when the lower half side of the rear receiving plate 9 shares the upper half side of the rear wall 2 c of the hopper 2, You may make it install in the front surface of the wall 2c.
[0025]
The conveyor 3 is mounted on the machine body 1 so as to extend from a position below the discharge port 20 of the hopper 2 to the receiving port 40 of the molding chamber 4 and discharged from the discharge port 20 of the hopper 2. Is to be sent to the receiving port 40 of the molding chamber 4, and it is sufficient if it is configured in this way. Is divided in the middle in the transport direction and divided into a start end side (front half side) and a terminal end side (second half side) in the transport direction, and the start end side thereof is used as the hopper side transport conveyor 3a, and the discharge port 20 of the hopper 2 is divided. It is positioned while facing the front end of the space S formed between the hopper 2 and the molding chamber 4 mounted behind the hopper 2 from below, and is mounted on the machine body 1. The bottom of the space S described above as the room-side transport conveyor 3b From the end of the hopper-side transfer conveyor 3a, and the end of the hopper-side transfer conveyor 3a is positioned below the end of the hopper-side transfer conveyor 3a. Positioned so as to wrap up and down and mounted on the machine body 1, when the material to be molded in the hopper 2 is discharged from the discharge port 20, this is received and transported by the hopper side conveyor 3 a, When discharged from the end of the conveyer 3a, the forming chamber side transfer conveyer 3b takes over and sends it to the receiving port 40 of the forming chamber 4.
[0026]
In the molding chamber 4, the material to be molded fed into the receiving port 40 is molded into a roll bale R by a bale molding device 41 made of a circulating and rotating tight bar installed in the molding chamber 4. From the hopper 2 described above, it is arranged at a position with a predetermined space S in the transport direction of the transport conveyor 3 and mounted on the machine body 1.
[0027]
In the case where the transport direction of the transport conveyor 3 for transporting the molding material discharged from the discharge port 20 on the bottom surface of the hopper 2 is set to the left-right direction with respect to the front-rear direction which is the traveling direction of the machine body 1. Then, on one side of the hopper 2 mounted on the machine body 1, the molding chamber 4 is arranged at a position along the transport direction with the above-mentioned spacing space S, and is mounted on the machine body 1.
[0028]
At this time, the molding chamber 4 is fixedly mounted to the machine body 1 with one half side as a fixed side 4a and rotated around the hinge P with respect to the fixed side 4a fixed to the machine body 1 with the other half side as a rotating side 4b. When the assembly is movably supported and the roll baler R that has been molded, packed and released is opened by the rotation of the rotation side 4b, the rotation of the rotation side 4b is performed. Then, the molding chamber 4 is mounted on the side end of the machine body 1 so as to open to the outside of the machine body 1.
[0029]
Further, when the conveying direction of the conveyor 3 is set to a direction along the front-rear direction of the machine body 1 and the material to be molded is conveyed to the rear of the machine body 1, the hopper 2 is disposed behind the hopper 2. From the above, the molding chamber 4 is arranged at a position with the above-mentioned interval space S, and is mounted on the machine body 1.
[0030]
At this time, the fixed side 4a on one half side of the molding chamber 4 is fixedly mounted on the machine body 1, and the rotating side 4b on the other half side is rotatably mounted around the hinge P around the fixed side 4a. When the roll bale R molded and packed in the molding chamber 4 is released by the rotation of the rotation side 4b, the molding chamber 4 is opened to the rear of the machine body 1 by the rotation of the rotation side 4b. The molding chamber 4 is mounted on the rear end portion of the machine body 1 to do so.
[0031]
The feeding mechanism 5 is a normal one comprising a twain or net winding bundle 50 for packing a molding material that has been formed into a roll bale in the molding chamber 4, its feeding roll 51 and a guide 52. It is installed on the upper part of the space S formed between the hopper 2 and the molding chamber 4.
[0032]
As shown in FIG. 5, the twain or net n fed out from the feeding mechanism 5 hangs down in the above-described space S and is disposed at the bottom of the space S as shown in FIG. 5. 3, the lower end contacts and is guided to the peripheral surface of the roll bale R rotating in the molding chamber 4 from the receiving port 40 of the molding chamber 4 by the transport conveyor 3 so as to be wound. become.
[0033]
The hopper-side conveyor 3a and the molding chamber-side conveyor 3b described above are linked to a driving mechanism so that the driving can be controlled on and off separately.
[0034]
In connection with this drive mechanism, the example shown in the figure will be described. The rear end side of the input shaft 12 supported on the machine body 1 is substantially left and right between the front and rear of the machine body 1 as shown in FIGS. Conduction is conducted to a conduction shaft 71 supported horizontally on the conduction case 70 via a conduction mechanism (not shown) stored in the conduction case 70 mounted at the center position. 9 at one shaft end which is the right end portion in FIG. 9 is conducted through a conductive chain 73 to a conductive wheel 72 fitted to the roll shaft 30 on the terminal side of the hopper-side conveyor 3a. The conduction wheel 72 is conducted to the roll shaft 30 via the clutch 74 which is turned on and off by the operation of the clutch lever, and the conduction wheel 72 is driven by the agitators 6. Conducted to the shaft 6a, the clutch 74 By operation of the input and off, so that control of the drive and its stopping of the hopper-side transporting conveyor 3a and the agitator 6 is performed.
[0035]
Further, at the other shaft end portion (left end side in FIG. 9) of the conductive shaft 71, the conductive shaft 71 is conducted to one shaft end portion (left side in FIG. 9) of the roll forming drive shaft 76 through the conductive chain 75. The other shaft end portion of the roll forming drive shaft 76 is conducted to the roll shaft 31 on the end side of the forming chamber side conveyor 3b through the conductive chain 77, and the other shaft of the roll forming drive shaft 76 is further transmitted. The end portion is conducted to the net feeding roller shaft 53 of the feeding mechanism 5 through the conduction mechanism 78, so that the hopper-side conveyor 3 a and the agitator 6 and the molding chamber side are driven by the rotational power input through the input shaft 12. The conveyor 3b, the bale forming device 41 in the molding chamber 4 and the tween or net feeding mechanism 5 are driven, and in this state, the clutch 74 is operated to “disengage”, thereby transporting the hopper side. Driving the conveyer 3a and the agitator 6 is to be stopped.
[0036]
In the conduction mechanism 78 between the roll forming drive shaft 76 and the net feeding roller shaft 53, a roll bale R formed in the forming chamber 4 is formed into a roll having a predetermined diameter or pressure, and the forming pressure thereof When a sensing device 79 that senses the sensor performs a sensing operation, a clutch (not shown) that turns on the conduction and activates the feeding mechanism 5 is incorporated, so that the molding material to be molded in the molding chamber 4 is When this reaches a predetermined molding pressure, the feeding mechanism 5 is operated so that the tween or net is fed out.
[0037]
The sensing device 79 that senses that the molding material to be molded in the molding chamber 4 has reached a predetermined molding pressure is configured to rotate its sensing operation around the hinge P by increasing the molding pressure. The movement of the rotation side 4b of the chamber 4 may be detected by a limit switch, and an electric signal may be transmitted. In addition, a clutch for turning on / off the driving of the feeding mechanism 5 controlled by the sensing operation thereof may be electromagnetic. An electric type such as a clutch may be used. Further, the clutch 74 provided between the hopper side conveyor 3a and the transmission shaft 71 may be an electromagnetic clutch.
[0038]
With this configuration, when the sensing device 79 performs an operation of sensing a predetermined molding pressure, the clutch 74 is turned on to stop the operations of the hopper side conveyor 3a and the agitator 6, and The feeding mechanism 5 is operated by turning on the clutch that controls the driving of the mechanism 5 and the tween or net is drawn out so that the roll can be packed in a state where the molding material is not discharged.
[0039]
At this time, while the feeding mechanism 5 is operating, as shown in FIG. 10, the feeding mechanism 5 is fed out from the feeding mechanism 5 to an intermediate position between the feeding mechanism 5 and the receiving port 40 of the molding chamber 4. A sensor s is provided in contact with the twain or net n guided to the receiving port 40 to sense it, and is provided on the upper surface of the case 14 in which, for example, the feeding mechanism 5 is stored by the sensing operation of the sensor s. Either the patrol lamp PL that repeats flashing is turned on or a notification device such as a buzzer provided at an appropriate location on the machine body 1 is operated to determine whether the tween or net is fed out from the feeding mechanism 5 by an operator or joint work. Person can be informed.
[0040]
【The invention's effect】
As described above, according to the means of the present invention, when the cut molding material blown from the harvester chute is received in the hopper, the molding material blown from the chute is received in the hopper. Since it can be loaded evenly in the left-right direction and the front-rear direction, the material to be molded can be fed into the molding chamber well, so it can be formed into a uniform roll bale, and it is good for storage after sealing by film wrapping. Of fermented silage.
[0041]
In addition, a side receiving plate and a rear receiving plate are provided in the hopper, and a distributed collision guide device and an auxiliary guide device are provided in the hopper, so that even if the blowing direction from the chute of the harvester is kept constant, the molding is performed in the hopper. Since the material can be loaded, the adjustment operation of the blowing direction of the chute can be simplified.
[Brief description of the drawings]
FIG. 1 is a side view of a conventional roll baler.
FIG. 2 is a front view of the above-described roll baler.
FIG. 3 is a plan view showing a state in which the tractor of the roll baler is connected and pulled.
FIG. 4 is a plan view of a roll baler embodying the present invention in a working state.
FIG. 5 is a side view of the above-described roll baler when in the same state.
FIG. 6 is a perspective view of a side receiving plate and a rear receiving plate provided in the hopper of the roll baler.
FIG. 7 is a front view of a side receiving plate and a rear receiving plate provided in the hopper of the same roll baler.
FIG. 8 is a side view of the drive mechanism portion of the same roll baler.
FIG. 9 is a plan view of a drive mechanism portion of the above-described roll baler.
FIG. 10 is a side view of the roll baler twain or net feeding mechanism portion.
FIG. 11 is an explanatory diagram of a net sensing operation of the feeding mechanism unit.
[Explanation of symbols]
A ... Roll baler, H ... Harvester, L ... Center line, P ... Hinge, PL ... Patrol lamp, R ... Roll bale, S ... Spacing space (space), T ... Tractor, a ... Chute, b ... Deflector, n ... Net , S ... sensor, t ... connection hitch, w ... dispersed collision guide device, y ... auxiliary guide device, 1 ... airframe, 10 ... running wheel, 11 ... connection rod, 12 ... input shaft, 13 ... universal joint shaft, 14 ... Case: 2 ... Hopper, 2a, 2b ... Left and right side walls, 2c ... Rear wall, 2d ... Inclined guide wall, 20 ... Discharge port, 21 ... Opening, 3 ... Transport conveyor, 3a ... Hopper side transport conveyor, 3b ... Molding chamber Side conveyor, 30 ... roll shaft, 31 ... terminal roll shaft, 4 ... molding chamber, 4a ... fixed side, 4b ... rotation side, 40 ... receiving port, 41 ... bale forming device, 5 ... feeding mechanism, 50 ... rolls, 51 ... rewind Roll, 52 ... Guide, 53 ... Feeding roller, 6 ... Agitator, 6a ... Drive shaft, 60 ... Rotating shaft, 61 ... Agitating blade, 70 ... Conduction case, 71 ... Conduction shaft, 72 ... Conduction wheel, 73 ... Conduction chain, 74 ... clutch, 75 ... conductive chain, 76 ... roll forming drive shaft, 77 ... conductive chain, 78 ... conductive mechanism, 79 ... sensing device, 8 ... side plate, 80 ... support member, 81 ... guide piece, 9 ... rear surface Receiving plate, 90 ... assembly member, 91 ... plate member.

Claims (3)

A hopper 2 that receives the molding material, a molding chamber 4 that molds the molding material into a roll bale, and a molding material that is discharged from the discharge port 20 of the hopper 2 are conveyed to the receiving port 40 of the molding chamber 4. In the roll baler that mounts the conveyor 3 to be transported, the material to be molded discharged from the chute a heading obliquely rearward in plan view from the front side of the hopper 2 is blown into the hopper 2. The receiving plate that receives the material to be collided is formed into a substantially vertical side receiving plate 8 along the front-rear direction and a substantially vertical rear receiving plate 9 along the left-right direction in a plan view. The side receiving plate 9 is combined and mounted so that the side receiving plate 8 is positioned on the front surface of the receiving plate 9, and the lower receiving edge below the portion where the molding material blown from the chute a collides with the side receiving plate 8 thereof. A plurality of strip-shaped guide pieces 81 are arranged in parallel in the front-rear direction, and the guide pieces 81 are alternately bent in the left-hand direction and the right-hand direction in the parallel order so as to be formed in a C shape in the front-rear direction view. A blow guide device for molding material in a hopper of a roll baler, which is provided with a distributed collision guide device w. A hopper 2 that receives the molding material, a molding chamber 4 that molds the molding material into a roll bale, and a molding material that is discharged from the discharge port 20 of the hopper 2 are conveyed to the receiving port 40 of the molding chamber 4. In the roll baler that mounts the conveyor 3 to be transported, the material to be molded discharged from the chute a heading obliquely rearward in plan view from the front side of the hopper 2 is blown into the hopper 2. The receiving plate that receives the material to be collided is formed into a substantially vertical side receiving plate 8 along the front-rear direction and a substantially vertical rear receiving plate 9 along the left-right direction in a plan view. The side receiving plate 9 is combined and mounted so that the side receiving plate 8 is positioned on the front surface of the receiving plate 9, and the side receiving plate 8 has a lower edge below the portion where the molding material blown from the chute a collides with it. A plurality of strip-shaped guide pieces 81 are arranged in parallel in the front-rear direction, and the guide pieces 81 are alternately bent in the left-hand direction and the right-hand direction in the parallel order, and formed into a C shape in the front-rear direction view. The rear impact receiving device 9 is provided with an inverted V-shape in the front-rear direction so that the molding material colliding with the rear-surface receiving plate 9 is dispersed in the left-right direction and the front-rear direction and dropped. The auxiliary guide device y having a shape in which the upper edge is inclined downward toward the front when viewed is arranged below the distributed collision guide device w installed on the lower edge of the side receiving plate 8 described above. A blow guide device for molding material in a hopper of a roll baler. A side receiving plate 8 mounted on the hopper 2 is formed separately from the left side wall 2b of the hopper 2, and is located slightly to the left of the left and right central portions in the hopper 2 from the front surface of the rear receiving plate 9. 2. The blow guide device for a molding material in a hopper of a roll baler according to claim 1, wherein the blow guide device is disposed so as to protrude forward.

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