JPS6318441B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an agricultural binding machine used for binding waste straw after threshing in a combine harvester, or for binding grain culms after reaping in a binder.

This type of agricultural tying machine, which is widely used, wraps the string around the grain bundle after the tying clutch is activated, and supplies the string to the knotting building and the holder for holding the string end, by connecting the above-mentioned building across the tying passage. The needle provided on the opposite side of the holder, that is, the string is passed through the string insertion hole formed at the tip, and the string is always held, and when the tying clutch is activated, the string is passed across the tying passage and the above-mentioned string winding and string supply are carried out. After the binding is completed, the needle is provided so as to cross the binding path again and return to the original position.

The object of this invention is to provide a novel string winding and supplying means in place of the above-mentioned needle, to be compact and lightweight, and to be able to adjust the size of the bundle to be bundled. The purpose of this invention is to provide an agricultural tying machine.

Regarding the illustrated embodiment, the configuration of the agricultural binding machine according to the present invention will be explained. As shown in FIG. In a waste straw processing case 2 to which waste straw after threshing is supplied, a waste straw cutter C is installed, with the waste straw cutter C disposed below and the binding machine B disposed above. The binding machine B has U-shaped rails 3a with open lower ends provided at both ends of the upper part of the support frame 3 attached to the upper surface of the binding machine B.
Front and rear 1 installed between both side walls of waste straw processing case 2
By placing it on the pair of support pipes 4, it is supported in a suspended manner, and by tilting it backward and downward at an appropriate angle, the lower surface thereof is used as a binding passage 5, and the waste straw processing case 2
is installed inside. The means for forming the binding passage 5 will be described later. The straw cutter C is configured as a disk cutter in which cutter disks 8 and 9 for handling a plurality of sheets are mounted on a pair of parallel cutter shafts 6 and 7. Waste straw processing case 2
Inside, there is a first shutter 11 that selectively opens and closes the straw supply port 10 to the straw cutter C, and a second shutter that selectively opens and closes the straw supply port 12 to the bundling machine B or its bundling passage 5. A shutter 13 is provided so as to be rotatably supported around each fulcrum shaft 11a, 13a. The fulcrum shaft 11a to which the first shutter 11 is attached is supported by a fixed support cylinder 14, and is also fixed to an arm 16 that is rotatably displaced by an operating cable 15 operated from the combine operator's seat. Further, the arm 16 and the arm 13b vertically disposed on the second shutter 13 are interlocked and connected by an interlocking rod 17 having a long hole at one end. As described above, when the arm 16 is placed in the position shown in the figure, each shutter 11, 13 is in the position shown by the solid line, the straw supply port 10 is closed, the straw supply port 12 is opened, and the straw is sent to the binding machine B. When the straw is supplied and tied, the arm 16 is rotated to the position shown by the chain line, and each shutter 11, 13 is rotated to the position shown by the chain line, the straw supply port 10 is opened and the straw supply port 10 is opened. 12 is closed, the waste straw is supplied to the waste straw cutter C, and the waste straw is shredded. The bundling machine B is capable of adjusting its displacement left and right by moving the rail 3a on the support pipe 4, thereby making it possible to change and adjust the bundling position according to the length of the waste straw.

Hereinafter, the specific structure of the illustrated binding machine B, only the outline of which is shown in FIG. 1, will be explained with reference to FIG. 2 and subsequent figures.

As shown in Figures 2-5, the illustrated binding machine B is
A binding case is provided only on one side (the upper side in FIG. 1) of the above-mentioned binding passage 5, and the binding case is
It is composed of a case body 21 and a case lid 22 which is fixed to the case body 21 and closes an opening on one side of the body 21. A deck 23 is fixedly attached. Binding cases 21, 22
Inside, there is an input shaft 24 with one end facing outside the case body 21, a pusher shaft 25 with one end facing outside the case lid 22, and an input shaft 25 with one end facing outside the case body 21 and the other end facing outside the case body 21. The clutch shaft 26 facing outside the case lid 23 and the door shaft 27 having one end facing outside the case lid 22 are parallel to each other, and the clutch shaft 26 is parallel to the input shaft 24 as shown in FIG. axis 2
5 and the clutch shaft 26 are arranged at approximately equal intervals and are rotatably provided.

In order to push the grain culms (husks) into the bundling passage 5, a packer is provided as in the conventional bundling machine, but in the case shown, the packer is a main packer disposed on the outer surface of the case lid 22. 27A and the auxiliary pack car 27 placed on the outer surface of the case body 21
It is also composed of B. Main police car 27
A is provided with one end pivoted 30 on a rotation support arm 29 whose pivot shaft 28 is one of the connecting rods connecting the case body 21 and the case lid 22, and fixed to the packer shaft 25. Pats car crank 3
1 through a pivot connection 32. The auxiliary packer 27B is fixed 34 at its proximal end to a bracket 33 (FIG. 2) provided on the main packer 27A.
By meshing the gear 35 fitted to the gear 35 fitted to the input shaft 24 with the gear 36 fitted to the input shaft 24,
It is assumed that the main packer 27A is constantly driven by the input shaft 24, so that the main packer 27A is constantly driven so that its tip is rotationally displaced along the trajectory _C1 shown in FIG. Also, auxiliary police car 27B
Since it is fixed to the main packer 27A, it is driven in the same way as the main packer 27A.

A door 38 is provided on the outer surface of the case lid 22 in order to receive grain culms (waste straw) at the end of the binding passage 5. In the case shown, this door 38 is
7, the door support arm 39 is provided with a plurality of insertion holes 39a for the fixture 40 so that the amount of door protrusion in the direction of the binding passage 5 can be changed. On the clutch shaft 26, a clutch gear 41 meshed with the gear 36 on the input shaft 24 is loosely fitted. A sense actuated tie-down clutch 42 is conventionally provided. The specific structure of the illustrated binding clutch 42 will be explained later, but in any case, the clutch shaft 26 is connected to the binding clutch 42 in the same manner as in the conventional binding machine.
It is intermittently driven one rotation by the operation of .

A bill 43 for tying a tying cord and a holder 44 for holding the end of the cord are arranged such that the bill 43 is placed on the upstream side in the grain culm flow direction and the holder 44 is placed on the downstream side in the same direction, as in the conventional binding machine. They are arranged and arranged side by side, respectively. As shown in FIG. 3 for the building 43, these buildings 43 and holders 44 are supported by a support provided on the deck 23, and small diameter bevel gears 43a, 44a are connected to the base end as in the conventional binding machine. The drive shaft 43b, 44b (the drive shaft 43b is integrated with the building body, and the drive shaft 44b is spline-fitted to the holder body), etc. , a large-diameter drive bevel gear 45 provided with teeth 45a only in a certain angular range, which meshes with the small-diameter gears 43a and 44a in the middle of one rotation of the clutch shaft 26 to drive the building 43 and holder 44. The drive bevel gear 45 is fixedly set directly on the clutch shaft 26. The building 43 is driven in the middle of one rotation of the clutch shaft 26.
The function of the holder 44 itself is the same as that of the conventional one.

In order to discharge the bundled grain culm (waste straw) bundle, a discharge arm is provided as in the conventional binding machine. In the case shown, the release arm is attached to the bundling case 2.
1, 22 and the deck 23, and two pipes 46A and 46B are provided on both sides thereof. 49
It is supported via a connecting frame 49 having a and 49b. On the clutch shaft 26 is the case body 2.
A discharge crank 50 is loosely installed outside the discharge crank 50, and the discharge arm 46A on one side is pivotally connected 51 to the discharge crank 50, and a connecting pipe 47 is connected to a rotary cylinder 52 at the base end of the discharge arm 46A. The ends are attached. A crank plate 53 is provided fixed to the clutch shaft 26, and the crank plate 53 and the discharge crank 50 are connected by a pin 53a so that rotation of the clutch shaft 26 is transmitted to the discharge crank 50. being done. As described above, the discharge crank 50 is driven by the clutch shaft 26 during one rotation of the clutch shaft 26, and the discharge arm 4
6A, 46B, the tip of the ejection arm 46A is the second
so as to be displaced along the rotation trajectory C ₂ shown in the figure.
Rotate the bundle release.

As described above, the illustrated binding machine B includes packers 27A and 27B, a door 38, a building 4
3. Holder 44 and release arms 46A, 46B
Also, a tying clutch 42 is provided, but the needle provided in the conventional tying machine is
It is no longer set up. In place of the conventional needle, a string supply arm 55 as described below is provided.

That is, the supply arm fulcrum shaft 5 is rotatably supported by the deck 23 and protrudes outside the deck 23.
The rotation support arm 57 whose base end is attached to 6,
The string supply arm 55, which is provided on the outer surface of the deck 23, has a cylindrical body 55a fixed to its base end.
Support cylinder 57 fixed to the tip of rotation support arm 57
A is fitted and fixed to a pin 58 which is rotatably supported on the supply arm fulcrum shaft 56, and is rotatable around the supply arm fulcrum shaft 56 together with the rotation support arm 57, and relative to the rotation support arm 57 around the pin 58. It is rotatably supported and provided along the outer surface of the deck 2 outside the outer surface. A string supply crank 59 is fitted to the end of the clutch shaft 26 that extends onto the outer surface of the deck 23.
The other end of the drive arm 61, which has one end pivoted 60, is pivotally connected to the middle of the rotation support arm 57 by a pin 62, so that the string supply arm 55 can be driven when the clutch shaft 26 rotates. ing. In the illustrated case, the string supply arm 55 is divided into two parts 55b and 55c midway in the length direction, and the two parts are connected by a connecting tool 63.

A string supply actuator 64 as described below is fixed to the tip of the string supply arm 55. That is, as shown in FIG. 6, the string supply actuator 64 has a slope 64a at the tip end formed in the shape of a closed end, which slopes so that the vertical width becomes smaller toward the tip end.
Strap guide groove 6 that extends from one side wall to the entire back wall
4b, the string guide grooves 64 are arranged diagonally in order to lower the height of the groove 64b on the back wall surface.
b. The string supply arm 55 supported as described above and driven as described above is connected to each of the arms 55, 57, 61.
By appropriately setting the length etc., the clutch shaft 26
During one rotation, the tip of the string supply actuator 64 moves along the trajectory _C3 shown in FIG. 2 to the standby position _P0.
First, cross the binding passage 5 in the other direction to reach the first dead center position _P1 , then cross the binding passage 5 in the opposite direction, pass the building 43 and the holder 44 position, and reach the holder 44 position. It is assumed that the motor is driven so as to reach the dead center position P2, which is slightly past the point _P2 , and then return to the standby position _P0 again.

As described later, the string supply arm 55
While the string supply actuator 64 at its tip moves from the first dead center position P ₁ to the other dead center position P ₂ , the string R
is received and engaged by the string guide groove 64b of the string supply actuator 64, and is rotated. However, even if the string supply arm 55 changes its direction due to rotational displacement, In order to prevent the relative attitude of the string guide groove 64b to the string R from being changed, the following means are provided. That is, as clearly shown in FIG. 3, a sprocket wheel 66 is provided on the supply arm fulcrum shaft 56, and is fixedly connected to the deck 23 by a coupling 65 and restrained from rotating. Another sprocket wheel 67 is fixedly installed on the pin 58 at the base end of the string supply arm 55, and both of these sprocket wheels 66, 67
A chain 68 having a length adjustment part 68a is disposed therebetween.
It is turned over. Therefore, the drive arm 61
The rotation support arm 57 and the string supply arm 55
When the rotation support arm 57 is rotated,
The chain 68 is driven by the rotation of the sprocket wheel 67 and the pin 58 is rotated, so that the string supply arm 55 whose base end is fixed to the pin 58 is moved relative to the rotation support arm 57. As a result, the angle between the rotation support arm 57 and the string supply arm 55 is changed, and the string guide groove 64b on the back side of the string supply actuator 64 is designed to always follow the trajectory _C3 . ing.

A knot cover 69 is provided on the binding passage 5 side of the knot section provided with the bill 43 and the holder 44, as in the conventional binding machine. Similarly to the conventional binding machine, a string guide 70 (FIG. 5) is provided for directing the tip of the string R toward the building 43 and the holder 44. On the other hand, in the case shown, the second shutter 1
3 (FIG. 1), the following string guide means is provided. That is, as shown in FIG. 5, the string guide means has a first string guide 71 located on the upstream side in the direction of flow of grain culms (excluded straw) and a second string guide 72 located on the downstream side. , and as shown in FIG. 7, the first string guide 71
is equipped with a guide portion 71a that always makes the string R portion on the proximal end side of the first string guide 71 substantially parallel to the binding path 5 by contacting the string R from the opposite side of the binding path 5. In addition, when the string R comes into contact with the second string guide 72 from the binding path 5 side, the second string guide 72
and a guide portion 72a that makes the string R portion between the second string guides 71 and 72 substantially parallel to the binding path 5, and the guide portion 72a
2 extending in an expanded shape toward the binding passage 5 from both ends of the
It has leg portions 72b. The first and second string guides 71 and 72 are arranged so that when viewed in the direction along the binding path 5, the two guides 71 and 72 form a closed string guiding channel Ch as shown in FIG. 7b. The arrangement is provided on the shutter 13.

Other configurations of the string supply arm 55 and other parts related thereto will be described later along with their operation.

The above-mentioned bundling passage 5 has, on one side, a bundling case 2 equipped with all the bundling mechanisms as mentioned above.
1 and 22, and on the other side, the above-mentioned second
It is partitioned by a shutter 13 and a plate 18 disposed on an extension of the shutter 13 as shown in FIGS. That is, the second shutter 13 and the plate 18 are connected to the binding case 21,
Grain culm guide plate G that defines the bundling passage 5 together with 22
It consists of. And Patsucar 27A, 2
The trajectory C ₁ (Fig. 2) of 7B is indicated by the same reference numeral C ₁ in Fig. 13 and the plate 18, and therefore, in the binding passage 5, the top of the plate 18 is the binding pocket 5a. Then, the above-mentioned plate 18 located in the binding pocket 5a section
The distance between the binding cases 21 and 22 can be adjusted as follows.

That is, the plate 18 has leg plate portions 18a and 18b at the front and rear ends as shown in FIGS. , straw cutter C
The upper end of the back cover 19 is provided along the back surface of the back cover 19, and as shown in FIG. A pair of bolts 20 are provided protruding from each side plate portion 18c. On the other hand, each side wall 2a of the waste straw processing case 2 is provided with a binding case 2.
A pair of elongated holes 2 aligned in the direction of near and far from 1 and 22
The plate 18 is fixed to the waste straw processing case 2 by inserting a bolt 20 into the elongated hole 2b and screwing a nut 73 onto the bolt 20 outside the case 2. Therefore, by once loosening the nut 73 and adjusting the distance of the plate 18 relative to the binding cases 21 and 22 within the range of the elongated hole 2b, the binding pocket 5a can be expanded or contracted. That is, the plate 18 is a grain culm guide plate G.
In this embodiment, a bundle thickness adjusting plate portion is provided which can be displaced in a direction to enlarge or reduce the binding pocket 5a.

In addition, the binding case 21 facing the binding passage 5,
21 and the surface of the nodule cover 69 are formed into guide surfaces S ₁ and S ₂ (FIGS. 2 and 5) that guide the grain culm (hull) on the opposite side of the grain culm guide plate G, and the grain culm ( A wide guide surface is provided in the length direction.

The above-mentioned binding clutch 42 is constructed in the same manner as well-known ones and operates in the same manner, so only an outline thereof will be explained. In FIGS. 3 and 4, 74 is
The clutch actuating arm is supported by a loose fit on the packer shaft 25, and has one end engaged with a pin 75a on the actuating arm 75 on the door shaft 27 through an elongated hole 74a, and a regulating protrusion 74b at the other end. In addition, a pin 7 embedded in a disk 76 fixed to the clutch shaft 26
7 includes a claw 78a that engages with the timing projection 74b.
A clutch arm 78 is supported, and the arm 78 has a clutch pin 78 that can be engaged with an engaging portion 41b formed in a part of the circumferential direction of the clutch gear 41 by the action of a spring 79.
b is attached. A rotary arm 80 loosely fitted and supported by the clutch shaft 25 has a roller 82 which is in sliding contact with a cam plate 81 fixed to the clutch shaft 26, and the clutch actuating arm 74 and the rotary arm 8
A clutch spring 85 is disposed between the two. In the shown bundling clutch 42, when a predetermined amount of grain culm (waste straw) is collected in the bundling passage 5 and the door 38 senses the pressure, the clutch actuating arm 74 is rotated by a slight amount, and the regulating protrusion 74b is engaged. When 78a is removed, the clutch pin 7 on the clutch arm 78
8b is engaged with the clutch gear 41 at the engaging portion 41b under the action of the spring 79, thereby causing the clutch shaft 26 to rotate. Then, the rotation of the clutch shaft 26 progresses, and the cam plate 8 above it
When the roller 82 falls into the cam groove 81a formed in the cam groove 81a, the rotating arm 80 and the clutch actuating arm 74 are rotated in the direction of opening the door 38, and then when the roller 82 is pulled out from the cam groove 81a, Both arms 80, 74 are rotated in the door 38 closing direction, and then the claw 78a engages with the regulating protrusion 74b, and the binding clutch 42 is disengaged. In FIG. 4, 87 is a bracket 88 on the inner surface of the case lid 22.
A reversal prevention plate is pivotally supported at 89 and engages with the engagement step portion of the disc 76 by the action of a spring 90, thereby preventing the clutch shaft 26 from reversing.

The operation of the illustrated tying machine B, especially the operation of its string supply arm 55, when tying the shredded straw with the shutters 11 and 13 in the position shown by the solid line in FIG. 1 will be explained below with reference to FIGS. 5 and 8. ,
I will explain it while adding some explanations of the structure.

At the start of work and after one cycle of tying operation is completed, as shown in FIG.
The string supply arm 55 passes under the building 43 and is held by the holder 44, and the string supply arm 55 is guided by the string supply actuator 64 at its tip.
is in a standby position where the tip of is located at the position P ₀ ,
The door 38 is in a position to close the end of the binding passage 5.

As the straw is fed into the bundling passage 5 from the state shown in FIG. 5 with the help of the police cars 27A and 27B, the string R portion crossing the bundling passage 5 moves toward the door 38. As shown in FIG. 8a, the R part of the string forms a loop, and
The straw is collected in front of the shutter 13, and the string R is moved along the surface of the shutter 13, and the second string R is moved downstream of the first string guide 71.
The string R comes into contact with the string guide 72, and as described above, the string R is kept substantially parallel to the binding path 5 between the string guides 71 and 72. As shown in FIG. 8a, when a predetermined amount of straw is collected in the bundling passage 5, the bundle pressure sensing clutch 42 of the door 38 is engaged.

The actuation of the binding clutch 42 causes the string supply arm 55 to move from the standby position shown in _{FIG .} Figure 8b
Shutter 13 through the binding passage 5 to the first dead center position.
be moved across the direction. The dead center position P ₁ of the string supply actuator 64 is located between both string guides 71 and 72 on the shutter 13.
The relative positional relationship between the string supply actuator 64 and the string R between the string guides 71 and 72 in the direction perpendicular to the paper surface in FIG. 8 is as follows. When the string supply actuator 64 passes between the string guides 71 and 72, the string R between them relatively climbs up on the slope 64a of the string feed actuator 64, passes over the actuator 64, and reaches its position. It is set so that it reaches all the way to the back.

Therefore, as described above, the string supply arm 55
crosses the binding path 5 in the opposite direction, and while the string supply actuator 64 reaches from the dead center position in FIG. 8b to the position shown in FIG. 8c, the string feed actuator 64 When passing between the guides 71 and 72, the middle of the string R enters the string guide groove 64b of the actuator 64, and the string supply actuator 64 can freely slide in the length direction of the string R with respect to the string R. engage with. Therefore, as shown in FIG. 8c, the middle part of the string R is disengaged from the second string guide 72 and is brought to the knot side by crossing the binding passage 5, and then the string supply arm 55 further rotates. While the string supply operator 64 moves toward the building 43 and the holder 44 and reaches the position shown in FIG. 8d, the string R is wound around the collected bundle. The track at the tip of the string supply actuator 64
C ₃ (Fig. 2) shows that the string supply actuator 64 passes the lower surface of the building 43 and the string R is guided doubly by the string guide 70 as shown in Fig. 8d.
As shown in FIG. 8e, the string R is supplied to the holder 44, and then, as shown in _FIG . The setting is such that the string R is supplied to the

When the state as shown in FIG.
a and 44a are reached, and Fig. 8 e and f
As shown in FIG. 3, the bill 43 is driven to knot the string R, and the holder 44 is driven to hold the string R and cut the string R between the knot point and the holding point using the knife 44d. It can be done. The string supply arm 55 returns from the dead center position of FIG. 8e to the standby position as shown in FIG. It is removed from child 64.

Thereafter, the string supply arm 55 returns to the standby position shown in FIG. 5 and is stopped when the clutch shaft 26 stops rotating.After the knotting is completed, the door 38 is rotated by the release rotation of the release arms 46A and 46B. The bound bundle is pushed out and released while
In the illustrated case, the opening position of the door 38 is set to a position where the door 38 is sunk into the nodule cover 69 as shown by the chain line in FIG. 2, so that the bundle can be released smoothly. It's on.

The string guide groove 64b of the string supply actuator 64 is provided to be inclined as described above, and there is a height difference h at both ends of the groove 64b on the back surface of the actuator 64 as shown in FIG. 6b.
Therefore, as shown in Figure 8e, the holder 44
is placed within the loop of the string R held by the string supply actuator 64 within the height difference h, and holds only the end of the string R that will be used for the next binding.
Double take of the string R by the holder 44 is reliably prevented. Furthermore, when the string R is removed from the string supply operator 64 from the state shown in FIG.
4, the position where the string R engages with the string supply actuator 64 and the position where the string R is held with the holder 44 are sequentially given a height difference, so that this is extremely easy.

When using the tying machine B as described above, changing and adjusting the bundle thickness of the grain culm (excluded straw) bundles bound by this tying machine B is performed using the bundle thickness adjustment plate described above in advance. 18 to adjust the size of the binding pocket 5a to match the intended bundle thickness, and if necessary, use the plurality of insertion holes 39a provided in the door support arm 39 to insert the door into the binding pocket 5a. 38. This is done by changing and adjusting the amount of overhang.

As is clear from the above description, the agricultural tying machine of the present invention replaces the needle in conventional tying machines with a string supply arm that moves reciprocally only during tying operation and once engages in the middle of the string to move the string. 5
5, winding the string around the grain culm bundle and building 43
The cord is supplied to the holder 44, and the entire binding mechanism is installed in the binding cases 21 and 22 on one side of the binding passage 5, making it extremely compact and lightweight. It has become a great binding machine. Further, the agricultural binding machine of the present invention has a binding passage 5 which is not provided with a binding mechanism.
On the other side, grain culm guide plates G13 and 18, which define the binding passage 5 together with the binding cases 21 and 22, are provided. Since the bundle thickness adjusting plate part 18 whose displacement can be adjusted is provided, the bundle thickness can be changed according to the use of straw, etc., using the bundle thickness adjusting plate part 1.
This is made possible by adjusting the displacement of 8.

[Brief explanation of the drawing]

Fig. 1 is a partially cutaway schematic side view showing the main parts of a combine harvester equipped with an embodiment of the present invention, Fig. 2 is a plan view of the embodiment, and Fig. 3 is a partially expanded longitudinal section of the embodiment. 4 is a cross-sectional view of the same embodiment, and Fig. 5 is a cross-sectional view of the same embodiment.
The figure is a plan view of only the main parts of the same embodiment, Figures 6a and 6b are perspective views of the main parts of one member of the same embodiment, and Figures 7a and b are respectively the main parts of the same embodiment. Perspective view and rear view of only the members, Figures 8a, b, c,
d, e, and f are plan views of only the main parts of the same embodiment for explaining the operation, and FIG. 9 is a perspective view of the main parts of the same embodiment. B... Binding machine, R... String, G... Grain culm guide plate, 2... Straw processing case, 2b... Long hole, 5
... Binding passage, 5a... Binding pocket, 13...
Shutter, 18...Plate (bundle thickness adjustment plate part), 2
0...Bolt, 21...Case body, 22...Case lid, 23...Deck, 26...Clutch shaft,
27A, 27B... Police car, 38... Door, 4
2... Binding clutch, 43... Bill, 44... Holder, 46A, 46B... Release arm, 55...
...String supply arm, 56...Arm fulcrum shaft, 57...
... Rotation support arm, 59 ... String supply crank, 6
1... Drive arm, 64... String supply operator, 7
1, 72...String guide, 73...Natsuto.

Claims (1)

[Claims] 1. Winding the string, whose end is held in the holder, around the grain bundle and supplying it to the building and the holder.
The lace supply arm moves back and forth only when the tying is activated, and once engages in the middle of the lace to move the lace.
This string supply arm, the above-mentioned bill and holder, and all other tying mechanisms are installed in a tying case provided on one side of the tying passage, and the above-mentioned tying is provided on the other side of the tying passage. A grain stem guide plate is provided which defines a bundling passage together with the case, and a bundle thickness adjusting plate portion is provided on the grain stem guide plate, the displacement of which can be adjusted in the direction of enlarging and contracting the bundling pocket in the bundling passage. Agricultural binding machine with special features.