JPS6127005B2 - - Google Patents

Description

[Detailed Description of the Invention] In a conventional agricultural binding machine, when the door detects that a predetermined amount of grain culm has been scraped into the collecting part by the packer, the needle, knotting part, and discharge arm are activated in that order. As it tied together, it released the tied bundle.

Since the discharging arm discharges the bundle while pushing down the door held by a constant pressure spring, an excessive load is applied to the discharging arm portion, and
When the culm gets caught in the door, there is a problem that the return operation of the door is delayed and the one-turn clutch becomes difficult to disengage.

The present invention aims to solve the above-mentioned problems, and includes: a packer for scraping grain culms into a convergence section; a door for catching the scraped grain culms; a needle;
In a bundling machine equipped with a knotting part and a discharge arm part, the door and the discharge arm part are activated from the door side in the opposite direction to the grain culm scraping direction on the lower side of the knotting part in the grain culm scraping direction and directed toward the bundle discharge passage. The present invention is characterized in that the grain culm bundle discharge passage is configured to rotate in a V-shape.

Hereinafter, one embodiment of the present invention and related matters will be described with reference to the drawings.

One side of the bundling device is formed into a grain culm bundling processing bullet path A that includes a receiving section 5, a supply path 6, a culm collection section 7, and a discharge section in order from the starting end. That is, both the knot part and the needle part of the binding device are provided on one side of the grain culm binding processing passage A.

Next, to explain the transmission device, the input pulley, which is driven by an appropriate shaft of the combine main body, is fixed to a spline shaft supported by a bearing and constantly rotates. Therefore, when the binding device 4 is moved and adjusted in the culm direction as described later, it expands and contracts while transmitting rotation.

In FIGS. 4 to 7, the transmission mechanism is housed in one transmission case 22 having a case cover 23, and the input shaft 24 is connected to the cylindrical shaft 21 by a pin 24', and the input shaft 24 is loosely fitted into the input shaft 24. The gear 25 rotates together with the input shaft 24 via a torque limiter.

However, if the torque limiter is not used, the gear 25 is fixed to the input shaft 24.

A gear 27 that meshes with the gear 25 and has a tapered pawl 27a on the side surface is spline-fitted to the crankshaft 26 having the crank pin 26b and the arm cam 26a, and furthermore, the one-turn clutch boss 2
8 is rotatably fitted. The one-turn clutch boss 28 has a cam plate 28a having a crescent-shaped protrusion 28b and a pin 28c at one end, and a partially toothed gear 3 on the other side with a loosely fitted clutch plate 29 in between.
0 is spline fitted, and the partially toothed gear 30
and the clutch plate 29 are connected by a torsion spring 32 whose ends are locked in the small holes 29d and 30d, thereby biasing the clutch plate 29 in the rotational direction (counterclockwise in FIG. 7).

Numeral 31 is a clutch pin having tapered portions 31a and 31b at both ends, and is loosely fitted into a hole 28a' formed in the cam plate 28a.
has a protrusion 29c, a tapered hole 29b into which the tapered portion 31b of the clutch pin 31 fits, and a recessed portion 29a in which the pin 28c engages to regulate the rotation angle of the clutch plate 29 relative to the cam plate 28a. As shown in FIG. 6C, the gear 30 is integrally provided with a flange-shaped cam 30a with a part (wide tooth 30b portion) cut out, and the teeth have five wide teeth 30b.
It is composed of three teeth and three narrow teeth 30c, and there are seven missing teeth.

The forward/reverse shaft 33 has one end that meshes with the wide teeth 30b and the narrow teeth 30c of the partially toothed gear 30, and has tapered holes 34a, 34b, 34c, 34 spaced at 90° intervals.
d has a bored intermediate gear 34 (24 teeth), and a swing link 35 is loosely fitted on the other side, and the swing link 35 has tapered portions 36 on both sides.
a and 36b, and a hole 35' that slidably holds a clutch pin 36, and a hole 35' that pivotally supports a roller 37 that slides on the cam plate 28a, and the protrusion 29.
A mounting seat 35d having a protrusion 35a that engages with c.
and a boss portion 35c into which a stopper cam 38 is rotatably fitted.
5d fits into the recess 38a and the cam plate 28a.
The stopper cam 38 is provided with two protruding parts 38d and 38e that can come into contact with the arcuate part of the protruding part 28b, and the stopper cam 38 has both ends fixed to the small holes 38c and 35b by a torsion spring 39, as shown in FIG. 6A. As shown, the tapered hole 38b is biased to be displaced from the clutch pin 36.

Further, the intermediate gear 34 has a gear 4 of a multi-use shaft 40.
1 are in mesh with each other, and a needle 42 and a door 49, which will be described later, are attached to the multi-use shaft 40, and the multi-use shaft 40 serves both as a door shaft and a needle shaft.

Nodule drive mechanism The drive gear 50 consists of 10 teeth in this example,
These teeth are designed to mesh only with the wide teeth 30b of the wide teeth 30b of the partially toothed gear 30,
Approximately half of the tooth width of the two teeth with a 180° difference in phase is removed to form cutout teeth 50a and 50a', and the drive gear 50 rotates 180° to rotate the cam 30 of the cutout gear 30.
When the tooth a enters the cutout part of the cutout tooth 50a or 50b, the long teeth 50b and 50b' on the front and back end of the cam 30a.
When the cam 30a passes through the cutout part, the cutout tooth 50a contacts the wide tooth 30b.
are engaged and driven. Also, the last wide tooth 30b
At the same time as the cam 30a passes the long tooth 50b, the cam 30a enters the cutout tooth 50a', and the drive gear 50 rotates 1/2 turn and is locked again.

In other words, the toothless gear 30 has 15 teeth, including seven toothless parts, and five of them, 5 wide teeth 30b, rotate the drive gear 50 by 1/2 rotation, and the following gear Since the speed is increased by
During the 15 rotations, the bill and holder complete one rotation and perform the knotting action.

Further, the drive gear 50 integrally includes a bevel gear 51 having 18 teeth and is rotatably supported by a shaft 52, and the shaft 52 has a small diameter portion 52 at one end and a pin 52c at the other end. At the same time, a mounting seat 52b screwed onto the transmission case 22 with a mounting bolt is fixed, and a reversal prevention pawl 5 set on the pin 52c is fixed.
The distal end 53a of the cam plate 28a is in pressure contact with the circumferential surface of the cam plate 28a, the base end is pulled by a tension spring 54 whose one end is fixed to the transmission case 22, and the back is attached to the mounting bolt 5.
5 is in contact with the end portion 55a of 5. However, protrusion 35
When a is engaged with 29c to act as a stopper, the anti-reverse claw 53 is separated from the end 55a of the mounting bolt 55, as shown in FIGS. 5 and 6A.

The speed increasing gear 60 (16 teeth) includes a bevel gear 61 that meshes with the bevel gear 51, and is rotatably supported by a shaft 62, with one end of the shaft 62 connected to the transmission case 22.
The other end is supported by inserting the small diameter portion 52a of the shaft 52 into the hole 62a.

The three-point meshing gear 70 (the number of teeth has no meaning, but it is set to 26) always meshes with the speed increasing gear 60, the holder gear 80 (12 teeth), and the building gear 90 (12 teeth). The shaft 71 is fixed to the transmission case 22 with a nut 72, and a building pressing plate 73 is attached to the outer end of the shaft 71.

Further, the holder gear 80 is attached to a holder shaft 81 that transmits rotation but slides in the axial direction, and the holder shaft 81 is supported by the transmission case 22 via a bush 85 and is also inserted into the cam metal 82. Only the holder 84 fixed to the outer end of the holder 84 protrudes outside the case, and the holder spring 83 and the holder gear 80 are housed inside the transmission case 22.

Further, since a holder spring 83 is interposed between the holder gear 80 and a spring receiver 88 adjusted by a nut 88, the tapered surface of the holder 84 is pressed against the tapered surface of the cam metal 82, and the tapered surface 87 for holding the string is pressed against the tapered surface of the cam metal 82. The spring receiver 8
When adjusting the string clamping pressure by forming the outer end surface of 6 into a hexagonal pyramid-shaped tapered groove and turning the hexagonal nut 88, the nut 88 should match the tapered groove of the spring receiver 86 every 1/6 rotation. The holder spring 83 constantly presses the spring 86, and the nut 88
This prevents the return of

The building 91 itself is exactly the same as the conventional one, but the shaft hole of the building gear 90 is oval-shaped with two parallel surfaces, and the gear bearing portion of the building shaft 91a has a width of the two parallel surfaces as described above. It is formed into an oval shape that is slightly narrower than the shaft hole. In other words, a certain play is formed between the bill gear 90 and the bill shaft 91a.

Further, as shown in FIGS. 2 and 4, the bill pressing plate 73 is pressed against the bill 91 by being pulled by a tension spring 92 whose tension can be adjusted by a nut 93, thereby applying cord clamping pressure to the bill 91 and controlling it. Since power is being applied, Building 91 will be moved to the first position by the amount of play mentioned above.
As shown by the chain line in Fig. 0, it rotates at an angle deviated in the opposite driving direction, and when removing the knot, the building gear 90 and the building shaft are pulled by the tied string and reach the position shown by the solid line without the rotation of the building gear 90. Although it rotates by the amount of play caused by the fitting of 91a, etc., the spring 92 and the pressing plate 73 return to the original state as shown in A at the same time as the knot is removed.

The nodule guide 94 has its base fixed to the transmission case 22, and as shown in FIGS. 1 and 3, it is a grain culm binding processing passage in which the receiving portion 5, the supply path 6, the culm collecting portion 7, etc. are connected in series. Forming one side of A and building 9
The lower end of the string guide groove 94c, which is provided diagonally downward from the upper part of the end surface 94d of the nodule guide 94, is a dead end, and the entrance part is for the needle to pass through. Part 94a
Furthermore, one side edge serves as a string guide surface 94b.

Drive mechanism for the pack car and star wheel Arm 10 protruding from the end of the pack car shaft 100
A pin 100b is fixed to 0a, and this pin 100
b is connected by a rod 101 to a pin 26b that rotates integrally with the crankshaft 26, so that the arm 100a is constantly oscillated;
02 swings, and its tip 102a moves in an arc between A and B.

The cam link 110 that is in contact with the arm cam 26a that rotates together with the crankshaft 26 is attached to the case cover 2.
The pin 110a provided at the end of the arm cam 26a swings between C and D as the arm cam 26a rotates.

Also, the bracket 1 that holds the transmission case 22
The intermediate shaft 11 is attached to the bearing pipe 112a provided in the bearing pipe 12.
3 is rotatably inserted through the intermediate shaft 113.
Pin 1 at the tip of arm 113a fixed at one end
13b is the pin 110a of the cam link 110;
Since the intermediate shaft 113 is connected by a link 110b, the intermediate shaft 113 reciprocates within a certain angle, and an arm 113c having a pin 113d at the tip is fixed to the other end of the intermediate shaft 113, as shown in FIG. There is.

The star wheel 114 has a support pin 112c attached to the upper part of the arm 112b which is installed upright on the bearing pipe 112a.
The star wheel 1 is rotatably supported by
A pin 115a at the other end of the link 115, one end of which is rotatably supported by the boss portion 11 of the rod 11
6, the arm 113c is interlocked with the pin 113d of the arm 113c.

Further, a torsion spring 117 is interposed between the arms 112b and 113c so that the cam link 110 is constantly pressed against the arm cam 26a, and the link 115 is biased downward, and is held by the boss portion of the link 115. The stopper pin 119 is attached to the star foil 11 via the spring 118 as shown in FIG.
4, the inclined groove 11 is provided on the plate surface of the star foil 114 and is gradually shallower on the rear side in the direction of rotation.
A one-way rotating clutch is formed by press-fitting the head of the stopper pin 119 into the E. In FIG.
The link 115 rising from F to F rotates clockwise to rotate the star wheel 114 by 1/3, and then when the pin 113d descends from F to E, the base is pivoted to the arm 112b and the torsion spring 1
Since the stopper 120 biased by 21 receives the tip of the scraping protrusion of the star wheel 114 in a press-contact state, the star wheel 114 does not rotate in the opposite direction, and the pin 119 of the one-way rotation clutch is pushed into the inclined groove 1.
1 and fits into the next inclined groove 11, and eventually the star wheel 114 is driven intermittently by 1/3 rotation in synchronization with the pack car 102.

Needle and Door Drive Mechanism In FIGS. 1, 4, and 8, the boss 42a of the needle 42 is attached to the tip of the multi-use shaft 40 so as to rotate integrally, and the culm guides 43a, 43a' and the stopper arm 43b, The boss 43 having a protruding portion 43b is loosely fitted to the multi-use shaft 40 so as to be freely rotatable. boss 4
A torsion spring 44 is set between the small hole of 2a and the small hole of the boss opposite thereto, and a stopper 4 is provided that protrudes from the boss 42a of the needle 42 toward the base side.
2b is located between the culm guides 43a and 43',
The needle 42 contacts the culm guide 43a' and maintains the posture shown by the solid line in FIG. 3, with the culm guide 43a and stopper arm 43b not rotating.
The needle 42 is configured to be able to rotate approximately 90 degrees from the position shown by the solid line in FIG. The arcuate portion 42 (in this example, there are a pair, but it may be one or three), the bundle release action portion 42s, the string hooking recesses 42t, 42t', and one claw 42w is made long while the other is short. It consists of a string receiving part 42v which is curved to form a crab claw shape and formed between both sides so as to cover it, and when viewed from above, as shown in Figs. 2 and 3, the tip of the string The receiving portion 42v is inclined so as to face the position of the needle passing portion 94a of the nodule guide 94, and the culm guides 43a, 43a' rotate along the end surface 94d of the nodule guide 94.

Further, the main part of the door 49 has a hole in the middle part that fits into the stepped part of the boss 43, and one and the other of the main parts have L-shaped receiving parts formed with the main part, Arc-shaped long holes 49a, 49 bored near both ends of the main part
By screwing the bolt inserted through a' into the screw hole in the middle of the stopper arm 43b, the door 49
is fixed to the stopper arm 43b, and by adjusting the mounting angle within the range of the elongated holes 49a and 49a', the width of the collecting culm 7 can be changed and the size of the bundle can be adjusted.

Operation timing The crankshaft 26 constantly rotates counterclockwise, and the cam link 11 rotates as the arm cam 26a rotates.
0 rotates and rotates the star wheel 114 by 1/3 turn. During this time, the tip of the pack car 102 moves to the standby position and returns, and then the star wheel 1
The star foil 114 descends along the side surface of the scraping protrusion 14, and when rising, the cam link 110 is in sliding contact with the arc-shaped portion of the base of the arm cam 26a.
is not rotationally driven. In other words, the tip of the pack car 102 is attached to the star wheel 1 in any stroke of reciprocating rotation.
Since it passes between the front and rear grain culms separated by 14 raking protrusions, the grain culms to be fed are clearly divided and raked toward the door 49 in an orderly manner, and the star foil 114 cooperates with the guide 15 It is delivered to the police car 102 without leaving any one deep inside the supply path 6.

During such grain culm raking, while the concentrated grain culm on the door 49 does not reach a predetermined amount, the amount of descent of the cushion bar 46 which is pressed upward by the constant pressure spring 47 and supports the stopper 43c, that is, the constant pressure spring 4
7 does not reach the predetermined amount of compression, the one-turn clutch does not engage, and as shown in FIG. 7, the protrusion 35a
and 29c are maintained in the engaged state, but as the compression amount of the constant pressure spring 47 reaches a predetermined amount and the multi-purpose shaft 40 rotates (rotates from the 0 point in the direction A in FIG. 6A). When the swing link 35 rotates in the C direction together with the intermediate gear 34 (15 degrees in this example), the protrusion 3
5a, the protrusion 29c of the clutch plate 29 comes off.

At this time, the clutch plate 29 rotates because it is biased counterclockwise in FIG.
Press 1. Next, when the police car 102 moves backward, the door 49 and the needle 42 are pushed up by the constant pressure spring 47 and return to their original positions.
2 has descended to the position shown by the solid line in FIG. 1, the taper pawl 27a of the constantly rotating gear 27 comes into contact with the clutch pin 31, and the one-turn clutch is engaged.

In this way, while the one-turn clutch is engaged and the cam plate 28a rotates (15 degrees in this example), the periphery of the cam plate 28a is in an arc shape centered on the axis, so the roller 37 is not pushed. After that, the roller 37 is rotated counterclockwise by the cam plate 28a to the position shown in FIG. As it is hung, it enters into the needle passage portion 94a of the knot guide 94.

In this example, when the cam plate 28a is rotating 80 degrees, the drive gear 50 is rotated by the wide tooth 30b of the partially toothed gear 30.
, and drives the building 91 and the holder 84 at the same time.

At this time, the needle 42 is 5 degrees before completion of string winding (Fig. 6 c), the packer 102 is 21 degrees before the maximum compression, and the cam plate 28a has rotated 85 degrees.
Between 38 degrees and 123 degrees, the guide surface of the cam plate 28a is an arc centered on the axis, so the needle 42
is inserted the most and is stopped until it reaches O in Figure 6 with the holder 84 being held and tied.
PATSUCAR 102 continues to compress, while building 91
is driven approximately 63°.

That is, by stringing the grain culm while compressing it with the packer 102, it is possible to firmly bind the grain culm.

Moreover, even after the maximum compression point, the packer 102 is still driven by the crank motion of the cam arm 26a and is near the bottom dead center, so the amount of return of the packer 102 is extremely small.

That is, while maintaining the compressed state, the building 91
The string rotates 130 degrees and finishes pulling the string, so it does not loosen and is tightly tightened (see Figure 9 A and Figure 13 I).

When the stop period of the needle 42 ends, the needle 4 is rotated by the rotation of the cam plate 28a (after 120° rotation).
2 starts to return (Fig. 6 O), and at this time the cam plate 28a
The convex portion 28b is the protruding portion 38 of the stopper cam 38.
d and the roller 37 begins to descend, so the relative positions of the teeth of the partially toothed gear 30 and the intermediate gear 34 are regulated, and the teeth begin to mesh smoothly without colliding with each other (Fig. 6). O is just before the bite).

When the cam plate 28a rotates 130 degrees, the protrusion 28b of the cam plate 28a comes into contact with the protrusion 38e of the stopper cam 38, as shown in FIG. Since the narrow teeth 30c and the intermediate gear 34 mesh,
The torsion spring 39 is further twisted to the state shown in FIG.
a is pushed out by the tapered hole 34a of the intermediate gear 34, and its end surface rides on the plate surface of the intermediate gear 34, and the other tapered portion 36b
Since it fits into the tapered hole 38b of No. 8, the intermediate gear 3
4 and the swing link 35 are mutually free (the state shown in FIG. 6G).

At this time, the cam plate 28a has rotated 195 degrees,
The needle 42 returns to the 0 point, and thereafter the intermediate gear 34
is driven by the partially toothed gear 30, so the needle 4
2 starts to release the bundled grain culm, which will be described later, from point 0 by the release action portion 42s' of the needle 42 located at the lower side, as shown in FIG.

During that time, when the cam plate 28a rotates 165 degrees, that is, during the clutch switching action by the clutch pin 36, the bill 91 catches the string in its beak, and immediately after that, the knife of the holder 84 cuts the string, and the cam plate When the rotation angle of 28a reaches 205 degrees, the building 91 and holder 84 rotate once, and the cutout tooth 5
0a' is locked and stopped by the cam 30a of the partially toothed gear 30, and when the rotation angle of the cam plate 28a becomes approximately 212 degrees inward or outward, the rear needle 42 moves into the discharge action section 4.
Knotting is performed by pushing out the bundled grain culm with 2s', and then the rotation angle of the cam plate 28a is
When the angle reaches 240°, the star foil 114 is activated.

The needle 42 continues to rotate further and stops when the rotation angle of the cam plate 28a reaches 345 degrees. At that time, the protrusion 35a of the swing link 35, which was rotating together with the intermediate gear 34, receives the protrusion 29c of the clutch plate 29 and rotates the clutch plate 29 in the opposite direction relative to the cam plate 28a, thereby shifting the tapered pawl 27a.
The clutch pin 31, which has been subjected to a pressing force by the clutch plate 29, is fitted into the tapered hole 29b of the clutch plate 29, and the one-turn clutch is disengaged.

Next, the operation of each part will be explained in more detail.

Clamping and Cutting the Strap When the cam plate 29 rotates 165 degrees as shown in Figure 10C, the building 91 pinches the cord,
At a rotation angle of 170 degrees, the previously pinched string is separated from the holder 84, and the new string is held by the holder 84 and cut.

Relationship between the return of the needle 42 and the pack car 102 Figures 6 (K) and 9 (C) show the needle 42 rotating toward the building 91 to wrap the string and then returning to the standby position (the position shown by the solid line in Figure 1). This indicates the instant when the cam plate 28a passes through the zero point.
The point at which the needle 42 has rotated 195 degrees is shown, and the needle 42 is thereby driven further 180 degrees together with the culm guide 43a, the door 49, etc., and during this time, the door 49 and the release action section of the needle 42 perform the knot cutting and release action. Do this.

Then, when the needle 42 returns to the zero point, the needle 42 is at a timing when it passes behind the packer 102, and the grain culm is not disturbed at all due to the intersection between the needle 42 and the packer 102.

In addition, the packer 102 returns until the star wheel 114 is activated, and from this point on, the rotation of the star wheel 114 begins as described above, so the tip of the packer 102 remains within the width of the scraping protrusion of the star wheel 114 even during the return stroke. wrap.

Grain culm supply and bundle release In Figure 6 H, Figure 10 O, Figure 9 C, and Figure 11, when the rotation angle of the cam plate 28a reaches 205 degrees, the building 91 and holder 84 stop, and the needle 4
The discharge action section 2 and the door 49 begin to push out the bundle,
Eventually, the state shifts to the state shown in Fig. 10(f), and the bundle jumps out from the collecting culm 7 and enters the discharge state as shown in Fig. 9(d).
At this time, the star wheel 114 is driven for the first time.

That is, the one-turn clutch is driven and the cam plate 28
While a rotates 240 degrees, the suction foil 114 holds the trailing grain culm, clearly separating the front and rear grain culms, and prevents the trailing grain culms from being carried out during release. Further, the needle 42 separates the following grain culms as shown in Fig. 9(d), but when the bundle is completely discharged from the machine as shown in Fig. 9(e), it is time to open the supply channel 6. There is no need to worry about taking out the culm.

Needle stop and one-turn clutch intermittent timing The needle 42 is connected to the wide tooth 30b at the end of the partially toothed gear 30.
When the intermediate gear 34 has been driven, the cam plate 28a
is rotated 345 degrees as described above (15 degrees before returning to the 0 point)
At this time, the protrusion 35a of the swing link 35 comes into contact with the protrusion 29c of the clutch plate 29, so when the cam plate 28a rotates another 15 degrees with respect to the clutch plate 29, the clutch pin 31 enters the tapered hole 29b and the clutch is rotated one rotation. can be cut.

In other words, when the clutch is engaged once, the cam plate 28a rotates 15 degrees after the clutch engages, and then the cam plate 28a rotates by 15 degrees.
The needle 42 is activated by the circumferential shape of a,
When the one-turn clutch is disengaged, the needle 42 stops and the cam plate 28a rotates 15 degrees before it is disengaged, so when the one-turn clutch is engaged, there is no load.
The clutch can be engaged and engaged very easily and accurately, and is also advantageous in terms of strength and can be made lightweight and compact.

Culm guide, door, and constant pressure spring Culm guides 43a, 43a' and door 49 are door 49
The stopper arm 43c is screwed onto the stopper arm 43b so that the stopper arm 43c is integrated with the stopper arm 43b.
Alternatively, the culm guide 43a or 43a' is supported by a cushion bar 46 which is supported by a constant pressure spring 47 via 43c'. This prevents the bundle from acting as resistance when acting.

In addition to operating the one-turn clutch, the door 49 also has the function of holding the bundle against packer pressure via a constant pressure spring 47 to improve the tightness of the bundle. 42
The needle 42 and the door 4 are held together while the culm 7 returns to the zero point shown by the solid line after the stringing is completed, but when the bundle is released after that, the needle 42 and the door 4
9 rotate together to open the discharge path 8.

Immediately before the needle 42 rotates 180 degrees from the zero point and stops, the stopper 43c or 43c' rides on the head while tilting the cushion bar 46 degrees and stops.

Furthermore, when the needle 42 operates to hook the string and stops, its inertial force is absorbed by the constant pressure spring 47, so even if the string is lost or broken and the pull-out resistance disappears, resulting in a dry firing state. There is no overshooting of the needle 42, no impact, no noise, and the structure is safe in terms of strength.

Drive and connection of bill and holder Bill 91 and holder 84 are three-point mesh gear 70
simultaneously driven by.

Conventionally, the holder is driven after the building placed in the position shown in Figure 10 K begins to rotate, and even after the building stops, only the holder rotates and stops at the position shown in the figure, and the bundle release direction is not the same as that shown in Figure 10. Since the bill must be in the direction shown in the figure in order to face downward and remove the knots, the holder has to connect the string that was locked in the front and the string supplied by the needle from behind to close the bill and grasp it. This must be done immediately before the building stops, causing the string to remain and the subsequent string holding function to deteriorate, and furthermore, when the string is grabbed by the building, the string that is locked to the second protrusion may come off and slip out of the loop. This resulted in three knots, one-sided knots, and complete mistakes.

However, the one with this structure is shown in Figure 10 A to A (the nodule guide 94, the building 91, and the holder 84 face the packer 102, but in this figure, the nodule guide 9
The needle 42 releases the bundle in the direction in which the needle 42 hooks the string and retreats, as shown in FIG.

Furthermore, since a play is provided between the bill 91 and the bill shaft 91a at the time of pruning, when the bundle is pushed out by the door 49 and the discharge action part of the needle 42 which acts as a discharge arm, as shown in FIG. Since the lever rotates from the position shown by the chain line to the position shown by the solid line, the knot removal can be performed more easily.After the joint removal is completed, the building 91 is pressurized by the building pressing plate 73, so it is at the position shown by the chain line. Return to

Supplying a string to the needle This needle 42 does not have a so-called string passing hole as in the conventional case, and the string receiving portion 42v at the tip is opened in the shape of a crab claw or 10 arms as described above. When the bundle is released, it separates from the string.

Therefore, the annular string supply port 14 is connected to the shaft of the needle 42 as described above, in order to supply the string to the needle 42 rising from below when releasing the bundle, and to receive the grain culm supplied after the release with the string. The lower needle 42 is attached to the boss 15a of the guide 15 on the opposite side of the passageway and diagonally crosses the rotation locus of the string receiver 42v of the needle 42 (FIG. 9, F'). While the needle rotates toward the standby position (the upper position shown by the solid line in Fig. 1), it guides the string that is stretched diagonally across the arc-shaped part of the needle in the plane shown by the chain line in Fig. 9, and finally It enters the string receiving part and becomes the state shown in Fig. 9 (F).

Further, when the string is wound by the needle 42, the needle 42 guides the string pulled out from the string supply port 14 away from the building 91 and the holder 84 as shown in FIG. The string on the supply port 14 side never gets caught on the building 91 or the like, and one of the long claws forming the string receiver 42v is bent to cover the tip of the short claw, and the string receiver of the needle 42 Part 42v is police car 10
In addition to passing through the back side of 2, when hanging the string, the grain culm will not enter the string receiving part 42v and cause a bundling error.

In addition, in the drawing, 9 is a frame, 9c is a pipe,
10a is a base, 10b is a supporting metal, 10c is a pin, 14 is a string supply port, 15b is a mounting portion, 16 is a U bar, 24a is a rotating body, 26b is a pin, 26c
29a is a concave portion, 45 is a bracket, and 4 is a small diameter portion.
2r' is an arc-shaped part, 42s is a bundle release action part, 48 is an adjustment nut, 48' is a double nut, 94d is an end face, 112e is a window, 127 is a brake pin that operates a torque limiter, 128 is a fixed part, 12
8c is a pressing part, 128d and 128e are nuts, 1
29 is a threaded handle, 130 and 133 are bolts, 131 is a compression spring, 132 is a double nut,
134 is a lock nut.

Since the present invention is configured as described above, when the discharge arm discharges the knotted bundle, the door is not pushed down by the bundle, and the discharge arm only discharges the tied bundle. The load is significantly reduced, the components can be made smaller and lighter, and since the bundle is ejected in the return direction of the door, there will be no trouble in the return operation of the door.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention and related matters, in which Fig. 1 is a side view of the binding machine, Fig. 2 is a plan view of the same, Fig. 3 is a rear view of the same, and Fig. 4 is a transmission part. Figure 5 is a right side view with the case cover removed, Figure 6 is a drawing showing the operating sequence of the transmission part, Figure 7 is an exploded perspective view of the transmission part, and Figure 8 is a diagram of the needle and door. Exploded perspective view, Figures 9A to 9A are side views showing the binding release operation, A' is an action view of the state in which the string is hung on the needle, A' is an enlarged view of the needle string receiver, and A'' is a view of the action of the string hanging. , Figures 10A to 10A are operational diagrams showing the relationship between the knotting state and the door and the trouser, G is a front view of a conventional knotter, Figure 11a is a plan view of an example in which the binding device is attached to a reaper, and b is a perspective view of the same as above,
FIG. 12a is a plan view of a conventional example, and FIG. 12b is a perspective view of the same. 6. Supply path, 7. Collection culm, 8. Release path, 14.
String supply port, 22‥Transmission case, 42‥Needle,
100‥Patzka axis, 102‥Patsucar.

Claims (1)

[Claims] 1. In a tying machine equipped with a packer for raking grain culms into a collecting part, a door for receiving the raked grain culms, a needle, a knot part, and a discharge arm part, a door and a door are provided on the lower side of the knot part in the grain culm scraping direction. The grain culm bundling discharge passage is made to have a V-shape by configuring the discharge arm to be activated from the door side in the opposite direction to the grain culm raking direction and rotate toward the bundle discharge passage. Features: Agricultural stem culm binding machine.