JPS609417A - Bundling machine of harvester - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a bundling device for collecting and bundling cut husks in predetermined quantities in a harvester.

In the harvesting row by a harvester, the husk is pulled up by a pulling device and cut by a cutting blade, and then sent to a bundling passage.
It is bundled into predetermined amounts and released into the field. This type of tying device is equipped with a needle that supplies a tying string and wraps it around the culm bundle, and a knock bill that makes a knot at the end of the wrapped string and cuts it. is generally done as follows. In other words, after hooking a string to the L-shaped beak-shaped Knockbill that opens and closes, by rotating the Knockbill once, a loop is created by the string, so while pulling this loop out of the Knockbill's beak, insert the string outside the loop held in the beak into the opposite side of the loop. When pulled out to the side and removed from the beak, a tubercle is formed. The string end is cut from the knot with a cutter during knotting.

However, in the conventional knot-bill binding operation,
When creating a loop due to the rotation of the knock bill, another string that becomes loose wraps around the knock bill, creating a double loop, and this wrapped string does not come off the knock bill, which can lead to tying errors, resulting in stable tying performance. I couldn't have expected it.

The present invention was made in view of the above points, and by providing a sharp edge facing the rotation locus of the knock bill on the string handling plate that crosses the guide groove of the string guide plate, the string wrapped around the knock bill at the time of knotting is prevented. To provide a tying device for a harvester that improves tying performance by eliminating the occurrence of tying errors when handling and removing the tying. Embodiments of the present invention will be described in detail below with reference to the drawings.

1 to 5 show an embodiment of the binding device according to the present invention, FIG. 1 is a plan view thereof, FIG. 2 is a front view from A in FIG. 1, and FIG. 3 is a BB in FIG. 2. An enlarged sectional view, FIG. 4 is a front view of the string handling plate and its CC sectional view, and FIG. 5 is an operation explanatory diagram. A cutting blade (not shown) is installed at the end of the culm pulling path indicated by the arrow in Figure 1. culm guide wall 1
It is configured to be fed into the binding passage 3 which is sandwiched at .degree.2. A needle drive shaft 4, which is rotatably driven from the driving side, is vertically supported inside the culm guide wall 2, which is formed by bending a plate, and has an L-shaped curve at its upper end. The T protrusion 5 is loosely mounted with its free end flat portion facing the binding passage 3. This T protrusion 5 rotates when a packer 13 (described later) compresses the bundle of shell culms sent into the bundling passage 3, and when the rotation angle with, that is, the amount of shell culms reaches a predetermined amount, a clutch (not shown) is activated. The device is configured to connect and start the binding operation. Further, the T projection 5 returns to the illustrated position by the spring member after releasing the binding culm. Further, a needle shaft 6 parallel to the needle drive shaft 4 is rotatably supported near the needle drive shaft 4, and these shafts 4, 6 are connected in a four-bar link shape by a lever 7.8.9. ing. The needle 10 is fixed to the needle shaft 6 and is formed into a T-shape with an arm and an arcuate portion.
One rotation of the needle drive shaft 4, that is, the lever 9 fixed thereto, causes the lever T to reciprocate by a predetermined angle, and the integrated needle 10 reciprocates by a predetermined angle via the needle shaft 6. The cord 11 led from the spool in the υ storage box is held by the arcuate portion and guided to the binding portion. A packer 13 formed in a roughly triangular shape is pivotally attached to the free end of the packer arm 12 that is loosely attached to the needle shaft 6. A free end portion of a lever 15 fixed to a rotating para-force drive shaft 14 is pivotally mounted. By doing this, when the shibatsuka drive shaft 14 rotates once, the tip of the shibatsuka 13 rotates in a trajectory shown by the symbol E in FIG. T
It is compressed between the projections 5.

On the other hand, a timing gear (not shown) that is driven from the driving side and reciprocates by a predetermined angle is attached to a gear shaft 16 that is pivotally supported in front of the culm guide wall 1 on the opposite side of the binding passage 3.
is covered and fixed with a gear cover 17, and on the outer periphery of the gear cover 11 facing the binding passage 3, a knock bill 19, in which a bevel gear 18 that meshes with the timing gear is fixed on the shaft, is rotatably mounted. has been done. knock building 19
is formed by a fixed rod 19a and a rotary rod 19b pivotally connected to the fixed rod 19a and a rotary rod 19b that is pivotally connected to the fixed rod 19a so that it can be opened and closed. The above cam (not shown) is configured to open and close at predetermined timing. A string 11 is hung on this knock bill 19 by the needle 1o. Item designated by symbol 2o H/A string holder attached to the outer periphery of the gear holder 17 in close proximity to the ivy building 19. A bevel gear that meshes with the timing gear is fixed on the shaft, and the reciprocating rotation of the timing gear is controlled by the string holder. It is configured to reciprocate by a predetermined angle to hold the end of the string 11 and to cut the end of the string with an attached cutter.

The culm guide wall 1 is provided with a guide groove 21 into which the needle 10 and the string 11 held by the string holder 20 are inserted, and the knock bill 19 is located in the center of this guide groove 21. The needle 10 is rotated while sequentially closing the needle 10.
419, so as to wrap the string 11 hooked on it around its own beak.

At the center of the culm guide wall 1 corresponding to such a knock bill 19, a string handling plate 22 formed in a monogonal shape having both arcuate edges is fixed with a bolt 23, and the knock bill 19 is When winding the string 11, the arcuate edge of the side that passes first crosses the guide groove 21 and wraps around the knock bill 1.
9, and is configured to have a concave portion 22a so that the arcuate edge meets the thin, sharp edge.

The reference numeral 24 is a link-shaped ejection rod supported by a gear shaft 16 and an arm shaft 25, which is rotated by being pushed by the culm bundle of the binding method, and is also rotated by the link movement. It is configured to push out and release it into the field.

The operation of the bundling device configured as above will be explained. As the machine progresses, the culm is conveyed in the direction of the arrow and pulled up. After the root part is cut off with a cutting blade, the culm is moved by a rake rotor or a cross-feeding device to a bundling passage 3 that is perpendicular to the pulling passage.
pushed out. At this time, the string 11 is passed through the arc portion of the needle 10, the guide groove 21, and the knock bill 19, and one end is held by the string holder 20. The culm fed into the binding passage 3 presses the T-protrusion 5 to rotate it, and is compressed so as to be pressed against the T-protrusion 5 by the packer 13 that enters the binding passage 3 along the trajectory E. Ru. When the T projection 5 rotates by a predetermined angle due to compression of the culm, the clutch is connected and the needle 10 begins to rotate, and the timing gear becomes rotatable. First, by rotating the needle 10 clockwise from the position shown in FIG. 1, the string 11 guided by the needle 10 is wrapped around the culm bundle pressed against the T projection 5. When the tip of the needle 10 reaches the string holder 20 and holds the string 11 therein, it returns to its original position, so that the two strings 11 heading toward the string holder 20 are hooked onto the knock bill 19 and the string 11 is held there. Further, the next string 11 which has been folded back by the string holder 20 is stretched between the string holder 20 and the tip of the needle 10 without passing through the knock bill 19. When the timing gear rotates by a predetermined angle in this state, the knock bill 19 rotates once and the two strings 11 are wound around the beak of the knock bill 19. During winding, the knock bill 19 opens and closes and holds the two strings 11 stretched between it and the string holder 20, and as the knock bill 19 continues to rotate, the knock bill 19
When the loop of the string 11 wrapped around the string is handled by the arc edge of the string handling plate 22, the loop comes off from the beak of the knock bill 19, and only the string 11 held in the mouth by opening and closing of the knock bill passes through the loop and becomes the knock bill. 19
is retained. Therefore, a knot is formed at the end of the string. By rotating the string holder 2° between the knots, the end of the string is changed and the end of the string is cut by the cutter, and the string holder 2o holds the end of the next string 11. knock building 19
The knot is removed from the knock bill 19 by opening/closing and movement of the binding culm, and the knotting operation is completed. The bundled culm bundles are discharged into the field by a discharge rod 24.

In such a binding operation, the string 11 that is guided to the string holder 20 by the needle 10 and then folded back by the return of the needle 1o may wind around the knock bill 19. The string indicated by reference numeral 11A in FIG. 3 is a string wrapped around a string, but in this device, the string handling plate 22 is provided with a concave portion 22a and the arcuate end edge is formed into a sharp shape. The wrapped string 11A is locked between the knock bill 19 and the arc edge in FIG. 5(a), and then the knock bill 19 is locked on the string 11A in FIG. 5(b).
Since a force is applied in the direction of pulling the string 11A out of the knock bill 19, the string 11A is pulled out from the knock bill 19, and there is no knotting error or force.

However, since the string 11A returns elastically after being removed, stable binding performance can be maintained.

In addition, in this embodiment, the concave portion 22 is provided in the string handling plate 22.
Although an example was shown in which one arcuate edge was formed into a sharp shape by providing the recessed portion 22a, the string handling plate 22 could be
It may have a wing-like cross-sectional shape in which one arcuate edge is sharp and the other arcuate edge is semicircular.

As is clear from the above description, according to the present invention, in the knotting device of a harvester, the string handling plate 22 that crosses the guide groove 21 of the string guide plate is provided with a sharp edge facing the rotation locus of the knock bill 19. Since the string 11A wrapped around the knock bill 19 at the time of knotting is squeezed by the sharp edge and the knock bill 19 comes off, no bundling errors occur and the bundling performance is greatly improved compared to the conventional one.

[Brief explanation of drawings]

1 to 5 show an embodiment of the tying device for a harvester according to the present invention, FIG. 1 is a plan view thereof, FIG. 2 is a front view as seen from A in FIG. 1, and FIG. 4 is a front view of the string handling plate and its CC sectional view, and FIG. 5 is an operation explanatory diagram. 1... Culm guide wall, 11. Calligraphy - string, 19. ψ.
・Notsuta Building, 21・e@轡guide groove, 22...11@string handling board. Patent applicant: Iseki Agricultural Machinery Co., Ltd. Agent: Masaki Yamakawa (and one other person)

Claims (1)

[Claims] A tying device for a harvester, characterized in that a lace handling plate having a sharp edge facing the rotation locus of a knock bill across the guide groove is fixed to a lace guide plate provided with a tying string guide groove.