JPH0236206B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides a waste straw processing device for processing waste after threshing in a combine harvester that reaps grain culms planted in the field and threshes the harvested grain culms while traveling in the field. It is related to.

In other words, the present invention provides a new waste straw cutter and a binding machine that is extremely compact and lightweight, and is arranged in such a way that the structure is simplified and compact, and the durability of the device is increased. The present invention aims to provide a straw processing device.

The structure of the waste straw processing device according to the present invention will be explained with reference to the illustrated embodiment. As shown in FIG. Inside the waste straw processing case 2, there is a binding machine B and a waste straw cutter C.
are arranged one above the other. The bundling machine B has a U-shaped rail 3a with an open bottom end provided at both ends of the upper part of a support frame 3 attached to the top surface of the bundling machine B, and the pair of support pipes 4 span between both side walls of the waste straw processing case 2. It is supported in a suspended manner by being placed on the waste straw processing case 2, and is tilted rearward and downward at an appropriate angle, with its lower surface serving as a binding passage 5, and is installed in the waste straw processing case 2. The straw cutter C is a disk cutter equipped with cutter disks 8 and 9 for handling multiple sheets on a pair of parallel cutter shafts 6 and 7.
It is configured. Inside the waste straw processing case 2, there is a first shutter 11 that selectively opens and closes the straw supply port 10 to the waste straw cutter C, and a first shutter 11 that selectively opens and closes the straw supply port 12 to the bundling machine B or its bundling process 5. A second shutter 13 that opens and closes each fulcrum shaft 11.
It is rotatably supported around a and 13a. The second shutter 13 is particularly formed by the top cover of the straw cutter C, and in particular, the above-mentioned bundling passage 5 is formed between the top cover 13 and the bundling machine B. 1st
The fulcrum shaft 11a on which the shutter 11 is attached
is supported by a fixed support tube 14, and is fixed to an arm 16 which 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. Due to the above,
When the arm 16 is placed in the position shown in the drawing, the shutters 11 and 13 are in the position shown by the solid line, the straw supply port 10 is closed, the straw supply port 12 is opened, and waste straw is supplied to the binding machine B. When the arm 16 is rotated to the position shown by the chain line and the shutters 11 and 13 are rotated to the position shown by the chain line, the straw supply port 10 is opened and the straw supply port 12 is opened. When it 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 are backed up against 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 base end to a bracket 33 (FIG. 2) provided on the main packer 27A. The packer shaft 25 has a gear 35 fitted thereto.
By meshing with a gear 36 fitted on the input shaft 24, the main packer 27A is constantly driven by the input shaft 24, so that the tip of the main packer 27A is aligned along the trajectory _C1 shown in FIG. It is constantly driven so that it rotates and moves. Also, auxiliary police car 27
Since B 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 bevel gears 43a and 44a in the middle of one rotation of the clutch shaft 26 to drive the building 43 and holder 44. A driving bevel gear 45 is fixedly mounted directly on the clutch shaft 26. The building 4 is driven in the middle of one rotation of the clutch shaft 26.
3 and the holder 44 are the same as conventional ones.

In order to discharge the grain culm (waste) bundle of the binding machine, a discharge arm is provided, as in conventional binding machines. In the case shown in the figure, two ejection arms 46 are arranged on both sides of the fuselage case part 21-23.
A, 46B are provided, and the release arms 4 on both sides
A connecting pipe 47 connecting 6A and 46B is supported by the deck 23 via a connecting frame 49 having pivot points 49a and 49b at both ends. A release crank 50 is loosely fitted onto the clutch shaft 26 outside the case body 21, and the release arm 4 on one side
6A is pivotally connected 51 to the discharge crank 50, and has a rotating cylinder 52 at the base end of the discharge arm 46A.
The end of the connecting pipe 47 is attached to. A crank plate 53 is provided fixed to the clutch shaft 26, and this crank plate 53 and the discharge crank 50 are connected with a pin 53a to connect the clutch shaft 26.
6 to transmit the rotation to the discharge crank 50.
being done. As a result of the above, the discharge crank 50 is
During one revolution of the clutch shaft 26, the ejection arms 46A, 46B are driven by the clutch shaft 26 to
The bundle is rotated so that the tip of the discharge arm 46A is displaced along the rotation locus _C2 shown in FIG.

As mentioned 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 23 outside the outer surface. A string supply crank 59 is fitted to the end of the clutch shaft 26, and the other end of a drive arm 61 whose one end is pivoted 60 to the string supply crank 59 is connected to a pin 6 midway through the rotation support arm 57.
2, so that the lace supply arm 55 can be driven when the clutch shaft 26 rotates. 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 _P3 , which is slightly past the dead center position, and then return to the standby position _P0 again.

As described later, the string supply arm 55
While the string supply actuator 64 at the tip moves from approximately the first dead center position P ₁ to the other dead center position P ₂ , with respect to the middle of the string R whose tip is held by the holder 44,
The string R is received in the string guide groove 64b of the string supply actuator 64 and is rotated while being engaged, but even if the string supply arm 55 changes its direction due to rotational displacement, the string supply operation at the tip will not continue. In order to prevent the relative posture of the child 64 or its string guide groove 64b with respect to the string R from being changed, the following means are provided. That is, as clearly shown in FIG. 3, on the supply arm fulcrum shaft 56, the deck 2
A sprocket wheel 66 is fixedly connected to the sprocket wheel 66 with a connecting tool 65 and is 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 these two sprocket wheels 6
A chain 68 having a length adjusting part 68a is wound between the parts 6 and 67. Therefore, when the rotation support arm 57 and the string supply arm 55 are rotated by the drive arm 61, the chain 68 is driven by the rotation of the rotation support arm 57, and the pin 58 is rotated together with the sprocket wheel 67. As a result, the string supply arm 55 whose base end is fixed to the pin 58 rotates 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 6 on the back side of the string supply actuator 64 is rotated.
4b is designed so that it always follows the trajectory _C3 .

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 illustrated case, the following string guide means is provided on the top cover or the second shutter 13 (FIG. 1). 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.
The string guide 71 is a guide portion that always makes the string R portion on the proximal end side of the first string guide 71 almost parallel to the binding path 5 by contacting the string R from the opposite side of the binding path 5. 71a, and the second string guide 72 makes the string R portion between the first and second string guides 71 and 72 substantially parallel to the binding path 5 when the string R comes into contact with it from the binding path 5 side. It is provided with a guide portion 72a, and two leg portions 72b extending from both ends of the guide portion 72a in the direction of the binding passage 5. The first and second string guides 71 and 72 are connected to a string guiding channel Ch that is closed as shown in FIG.
are provided on the shutter 13 in such a manner that a

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

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 regulating protrusion 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 of the cam groove 81a, both of them are rotated. The arms 80, 74 are rotated in the direction of closing the door 38, and then the claw 78a engages with the regulating protrusion 74b, and the binding clutch 42 is disengaged. 87 in Figure 4
is a reversal prevention plate pivotally supported by a bracket 88 on the inner surface of the case lid 22, which engages with the engagement step of the disc 76 by the action of a spring 90 to prevent 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 supplementing the explanation of some of the configurations.

At the start of work and after one cycle of tying operation is completed, the tying string R is guided by the first string guide 71 on the shutter 13 and the string guide 70 at the knot, as shown in FIG. 43 and the end of the cord is held in the holder 44.
The string supply arm 55 is in a standby position with the tip of the string supply actuator 64 located at the position P ₀ , and 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 set amount of waste straw is collected in the bundling passage 5, the bundling clutch 42 is engaged by the door 38 sensing the bundle pressure.

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 the guides 71 and 72 at both ends 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 height. 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 R is in a state where it can freely slide in the length direction of the string supply actuator 64. When grasped, the string supply arm 55 engages the string R with the string supply actuator 64 at its tip. Therefore, as shown in FIG. 8c, the middle part of the string R comes off from the second string guide 72 and is brought to the knot side, crossing the binding passage 5.
Next, the string supply arm 55 further rotates, and the string supply operator 64 moves toward the building 43 and the holder 44 to reach the position shown in FIG. It can be rolled up. In the trajectory C ₃ (FIG. 2) of the tip of the string supply actuator 64,
The string supply operator 64 passes under the building 43, and as shown in FIG. As shown in FIG. 8e, the string supply actuator 64 passes through the lower surface of the holder 44 until it reaches the other dead center position _P2 .
The setting is such that the string R is supplied to 4.

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 will 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 separated within the range of the height difference h within the loop of the string R held by the string supply operator 64, 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.

The surface S ₁ of the case 21 and the surface S ₂ of the knot cover 69 facing the bundling passage 5 are configured as guide surfaces that guide the grain culms (husks) in the bundling passage 5 together with the shutter 13 on the other side. The guide surfaces S ₁ and S ₂
Accordingly, a grain culm guide surface having a large width in the grain culm (hull) length direction is provided.

Movement trajectory of the aforementioned police cars 27A and 27B
C ₁ (Figure 2) has the same symbol as shown in Figure 1.
As shown in C ₁ , the top cover of the straw cutter C is configured as a rotary shutter 13 that can rotate around the fulcrum shaft 13a as described above, whereas the grain culm of the straw cutter 27A, 27B is (Straw removal) pushing operation end position Pe is especially the straw removal passage 5
The shutter 13 is set approximately at the pivot point 13a of the shutter 13 when viewed in the direction of waste flow.
Therefore, the waste straw concentration position or pocket in the straw removal passage 5 is located approximately on the downstream side of the rotational fulcrum 13a, and the load of the collected straw is applied to the rotational fulcrum or the fulcrum shaft 13a. Durability is increased so that it is guaranteed that the shutter 13 always rotates smoothly with almost no force applied.

As is clear from the above, the waste straw processing device for a combine harvester of the present invention wraps the string R, whose string end is held in the holder 44, around the straw bundle and supplies it to the bill 43 and the holder 44. , a string supply arm 55 that moves reciprocally only when the tying is activated, and that once engages the string midway and moves the string;
This is a binding machine B configured to perform the above-mentioned binding, in which the string supply arm 55 and all other binding mechanisms are arranged on one side of the binding passage 5.
A binding machine B and a straw cutter C are installed.
A binding passage 5 is formed between the top cover 13 of the waste straw cutter C and the binding machine B, and the top cover 13 is configured as a rotating shutter that selectively closes the waste straw supply port 12 of the binding machine B. Furthermore, the pushing operation end position Pe of the bundlers 27A and 27B of the binding machine B is set approximately at the rotation fulcrum 13a position of the upper surface cover 13 when viewed in the direction of waste flow in the binding passage 5. It has the following advantages because it is constructed as follows.

That is, in the binding machine B provided in the waste straw processing apparatus of the present invention, by providing the above-mentioned string supply arm 55 in place of the conventional needle, the entire binding mechanism can be placed on one side of the binding passage. Since the tying machine B itself is constructed with such an arrangement, the tying machine B itself becomes small and lightweight, and therefore the waste straw processing apparatus becomes compact and lightweight. Furthermore, since the above-mentioned bundling machine B and straw cutter C are arranged one above the other, the entire waste straw processing device does not protrude significantly toward the rear of the combine machine, and has a small front-to-back width. However, in particular, all of the binding mechanisms in the binding machine B are arranged on one side of the binding passage 5, whereas the binding passage 5 is formed between the top cover 13 of the binding machine B and the straw cutter C. However, since the other passage 5-defining members are omitted, the structure is simplified, and the apparatus is further made compact by omitting the other passage 5-defining members. . Furthermore, the waste straw processing apparatus of the present invention has the above-mentioned top cover 13 of the waste straw cutter C attached to the tying machine B.
The top cover 13 is configured with a rotary shutter that selectively closes the waste straw supply port 12.
is used both as a member for defining the bundling passage 5 and as a shutter for switching straw processing, which further simplifies the structure.
The pushing operation end position Pe of 7A, 27B is set at the rotation fulcrum 13 of the top cover 13 which is a rotation shutter.
a, and the collecting position of the waste straw is located approximately on the downstream side of the pivot point 13a, so that the load of the collected straw is hardly applied to the pivot point of the shutter 13, The durability of the device is increased so that the shutter 13 always rotates smoothly.

[Brief explanation of drawings]

FIG. 1 is a partially cutaway schematic side view showing an embodiment of the present invention, FIG. 2 is a plan view of only the binding machine in the same embodiment, and FIG. 3 is a partially expanded vertical sectional view of the same binding machine. Figure 4 is a cross-sectional view of the binding machine, Figure 5 is a plan view of only the main parts of the binding machine, and Figures 6a and b.
are respectively perspective views of the main parts of the above-mentioned binding machine;
FIGS. 7a and 7b are respectively a perspective view and a rear view of only the main parts of the binding machine, and FIGS. 8a, b, c,
d, e, and f are plan views of only the main parts of the binding machine to explain the operation thereof. B... Binding machine, C... Straw cutter, R...
String, 1... Straw transport belt, 2... Waste straw processing case, 3... Support frame, 3a... Rail, 4... Support pipe, 5... Binding passage, 11... First shutter, 12 ... Straw supply port, 13 ... Second shutter (top cover), 13a ... Fulcrum shaft, 21 ...
... Case body, 22 ... Case lid, 23 ... Deck, 24 ... Input shaft, 26 ... Clutch shaft, 27
A, 27B... Police car, 38... Door, 42...
... Binding clutch, 43... Building, 44... Holder, 46A, 46B... Release arm, 55... String supply arm, 64... String supply operator, 71, 72
...String guide, C ₁ ...Patzker locus, Pe...Pushing action end position.

Claims (1)

[Claims] 1. Winding the string whose end is held in the holder around the straw bundle and supplying it to the building and 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.
A tying machine configured to perform the tying process, in which the string supply arm and other tying mechanisms are all arranged on one side of the tying passage, is provided, and the tying machine and the straw cutter are connected to each other. A binding passage is formed between the top cover of the waste straw cutter and the bundling machine, and the top cover is configured as a rotating shutter that selectively closes the waste straw supply port of the bundling machine, and is arranged above and below, Furthermore, the waste straw processing device for a combine harvester, wherein the push-in operation end position of the bundler of the binding machine is set approximately at the rotational fulcrum position of the upper surface cover when viewed in the waste straw flow direction in the binding passage.