JPH0614638A - Stem and culm binder - Google Patents

Abstract

PURPOSE:To enable stems and culms to avoid being nipped in a locked state between a packer and preventing members in spite of enhanced certainty that the stems and culms bound in a binding space are prevented from being pulled into a knotting part with a needle in performing the string feeding operation of the needle. CONSTITUTION:The objective string guide plate structure is obtained by installing a string guide plate 17 having a string guide hole 18 for passing and moving a needle 7 on the side where a knotting bill 9, etc., of a binding space (S) are located and simultaneously protrusively installing preventing members (19A) and (19B) for preventing the stems and culms from being led together with the needle 7 into the string guide hole 18 in a pair on both sides of the string guide hole 18 and constructing a regulating member 24 for regulating the feeding of the succeeding stems and culms from a moving locus of the needle 7 to the side of the binding space (S) in the binding operation so as to change over the posture to a regulating one interlocking with the string feeding operation of the needle 7 and releasing the regulating posture in nonoperation of the string feed with the needle 7 in linking thereto.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a stem-and-culm binding machine used for combine harvesters, and more specifically, a knot building and a knot string holder are disposed on one side of the binding space, and the stem is on the other side of the binding space. A string guide provided with a packer for scooping and a needle for supplying a binding cord, and a string guide hole for passing movement of the needle on the side where the knot building and the knot string holder are located in the binding space. The present invention relates to a stem and culm bundling machine in which a plate is provided, and a blocking member for blocking the stem culm from being taken in together with the needle through the string guide hole is provided in the binding space so as to project in pairs on both sides of the string guide hole.

[0002]

2. Description of the Related Art Heretofore, as a stalk-and-bundle binding machine of this kind, when a binding operation is performed, a needle is operated to feed a string to a knotted portion while a packed stalk is held while a packer is located near a binding space. In order to prevent a part of the stem culm from being drawn into the crocodile when passing through the string guide hole, the packer partially overlaps with the blocking member in a side view, and the overlapping part causes the stem to overlap. The structure that holds the culm is known.

[0003]

However, conventionally, when the packer moves so as to be located closer to the binding space during the binding operation, the stem culm is held by the overlapping portion with the blocking member in a side view. However, if there is a large amount of stalks, the amount of stalks held by the stalks will also increase, so that there is a risk that the stalks will be strongly sandwiched between the packer and the blocking member, and a locked state will occur. There was a problem that the items were damaged. Therefore, in order to prevent the locked state, it is conceivable to reduce the front-back width of the packer so as to reduce the overlapping area of the packer and the blocking member in a side view. At the location close to the back part of the packer due to the good hand of the binding space in the moving direction, there is a discharge straw whose packing space could not reach the trap, and the discharge straw is used by the needle to cut the knot. It has a drawback that it is highly likely to be pulled into, and thus a binding defect is likely to occur. The present invention has been made in view of the above circumstances, at the time of the string supply operation of the needle, while increasing the certainty of preventing the pulling to the knot portion by the needle of the stem culm focused in the binding space,
An object of the present invention is to provide a string guide plate structure of a stem-and-bundle binding machine that can prevent the stem-and-pits from being caught in a locked state between the packer and the blocking member.

[0004]

In order to achieve the above-mentioned object, the stem-and-bundle binding machine according to the present invention has the structure described above, and follows the movement locus of the needle on the binding space side from the movement trajectory of the needle during binding operation. A regulating member for regulating the supply of stem culm is switched to a regulating posture in association with the operation of supplying the cord of the needle, and the regulating posture is released when the cord supply of the needle is not operated, the needle is attached to the needle. The characteristic configuration is that they are configured in cooperation. The operation and effect of this characteristic configuration are as follows.

[0005]

In other words, the regulating member regulates so that the stem culm that follows the binding space side is not supplied, and the regulating operation is interlocked with the needle string supplying operation, and the needle supplies the string. Since the restriction member is designed to release the restriction operation in the standby state when not in operation, avoiding that the following stem culm is pulled into the warp by the string supply operation of the needle in the restriction operation state. In addition, even if the front and rear width of the packer is made small, it is possible to avoid the knotted portion of the stalks from being pulled into the wax by the needle.
And, by making the front-back width of the packer small in this way, in the stalk culling when binding with the blocking member of the packer, since the amount of the stalk stalks that can be held can be made small, the packer strongly holds the stalks. The locking with respect to the blocking member can also be eliminated.

[0006]

Therefore, since the stem culm does not exist without being pinched by the packer or the like at the passage point of the needle during the binding operation, the problem that the stem culm is pulled into the knotted portion together with the needle is solved, and It is also possible to prevent the packer and the blocking member from being locked, and it has become possible to suppress the occurrence of defective binding due to the stem culm being pulled into the nodule and the like.

[0007]

Embodiments of the present invention will be described below with reference to the drawings. 1 and 2 show a drainage straw bundling device 1 as an example of a stem-culm bundling machine mounted on the rear part of a combine.
In this discharged straw bundling device 1, a binding space S for collecting the discharged straws that have been threshed by the threshing device 2 and then held and conveyed by the discharged straw conveying chain 3 is arranged below the string supply unit 4 arranged above. It is provided between the knot portion 5 and the knot portion 5.

As shown in FIGS. 1 and 2, the string supply section 4 is provided with a packer 6 for scraping the discharged straw, a needle 7 for supplying a binding string, a sensing door 8 for sensing the collecting pressure of the discharged straw, and the like. In addition to being configured, the knot portion 5 includes a knot building 9, a knot string holder 10, a discharge arm 11 and the like. The string supply unit 4 and the knotting unit 5 are connected to a pair of connecting frames 14A, 14 which are connected to the shredder 12 for shredding devices in which the threshing device 2 is located on the side of the binding device 1 and the threshing case.
B is distributed to one side and the other side. Then, the string supply section 4 and the knot section 5 are connected to each other by the chain transmission mechanism 15
In this way, the drive timing is interlockingly connected so that the drive timing is synchronized with the bundling operation, and the threshing device 2 obtains the drive force from the frame.

As shown in FIGS. 1 to 3, a supporting frame for supporting the knotting building 9, the knotting cord holder 10, the discharging arm 11 and the like of the knotting portion 5 at a position facing the binding space S in the knotting portion 5. The cord guide plate 17 is attached to the cord 16 and arranged. In this string guide plate 17, the needle 7 is connected to the knot portion 5.
The string guide hole 18 that penetrates vertically so that the string supply can be transferred to
To form and prepare. A pair of left and right ribs 19A and 19B as blocking members are provided in the bundling space S so as to project along the left and right inner edges of the string guide hole 18 in the string guide plate 17.

A structure for attaching the string guide plate 17 to the support frame 16 will be briefly described. As shown in FIG. 4, the cord guide plate 17 pivotally supports the front end portion of the cord guide plate 17 so as to be vertically swingable around the lateral axis P with respect to the support frame 16, and
The rear end of the support frame 16 can be placed. Then, at the rear end of the support frame 16,
Recesses 20A, 2 that are cut out forward and downward at two locations in a side view
0B is formed, and an arm member 21 that can be engaged in the upper recess 20A is pivotally supported at the rear end of the string guide plate 17 so as to be swingable around a lateral axis Q. The support frame 16 is provided with a hook member 22 for locking the inserted arm member 21 so as not to slip out of the recess 20A.
It is vertically slidably fitted into a vertical through hole formed in the rear end of the concave portion 20A, 20B so as to penetrate therethrough. The latch member 22 is elastically biased upward by a spring 23 arranged in the recess 20B. As a result, when the hook member 22 is pulled downward against the spring 23, the recess 20A is opened and the recess 20 of the arm member 21 is opened.
When the arm member 21 is set in the free state while the arm member 21 is engaged with the recess 20A, the spring member 23 moves upward so that the arm member 21 closes the recess 20A and the arm member 21.
Is held in a position, and as a result, the string guide plate 17 is brought into a locked state in which upward lifting is restricted.

As shown in FIGS. 1 and 3, the packer 6 has a relatively small front and rear width.
A pair of left and right restricting members 24, which are slender plate members supported so as to be swingable around the horizontal axis R, are provided in the string supply portion 4 at the upper front positions of the ribs 19A and 19B. The regulating member 24 is elastically biased by a spring 25 so that its free end portion is located closer to the string supply portion 4 and is in a posture of opening the discharge straw passage.
Is configured to be cam-driven by abutting pressing of a cam member 27 provided on a shaft 26 that interlocks with the drive shaft of the needle 7. The timing at which the cam is driven is changed from the posture in which the packer 6 is located near the binding space S to the position where the discharged straws are focused in the binding space S, and then the needle 7 is moved.
When the cord feeding operation is started, the regulating member 24 is swung so that the back wall portion of the packer 6 moves along the needle movement locus so that the discharge straw at the movement locus moves forward from the needle movement locus. I am trying to let you. Further, as described above, the regulating member 24 is held in a position separated from the needle movement trajectory forward as described above until the needle 7 feeds the knotting portion 5 with the alligator cord and the cord feeding portion 4 returns to the alligator cord again. So that the cam is driven. Needle 7 is string supply unit 4
When returning to the arm and in the standby position, the regulating member 24 is returned to the standby position by the spring 25.

Therefore, according to the above-mentioned structure, when the needle 7 passes through the string guide hole 16, the drainage straw on the back surface of the packer 6 which the binding space S has moved to the side is removed by the regulating member 24 forward from the needle movement locus. As a result, the needle 7 is prevented from pulling the discharge straw into the knotted portion 4.

It should be noted that reference numerals are given in the claims for convenience of comparison with the drawings, but the present invention is not limited to the configurations of the accompanying drawings by the entry.

[Brief description of drawings]

FIG. 1 is a vertical cross-sectional side view showing a combine straw discharge binding device.

FIG. 2 is a rear view showing the combine straw discharging device of the combine.

FIG. 3 is a rear view in vertical section showing essential parts such as a string guide plate.

FIG. 4 is a partially cutaway side view showing the attachment structure of the string guide plate.

[Explanation of symbols]

 6 Packer 7 Needle 9 Knot Building 10 Knot String Holder 17 String Guide Plate 18 String Guide Holes 19A, 19B Blocking Member 24 Restricting Member S Binding Space

Claims (1)

[Claims] 1. A knot building (9) on one side of the binding space (S).
And a knot string holder (10), a packer (6) for scraping the stalks and a needle (7) for supplying the knot string on the other side of the bundling space (S), and the bundling A string guide plate (17) having a string guide hole (18) for passing and moving the needle (7) is provided on a side of the space (S) where the knot building (9) and the knot string holder (10) are located. In addition, blocking members (19A) and (19B) that prevent the stem culm from being brought together with the needle (7) through the string guide hole (18) are provided in the binding space (S). ) Is a stem-culm bundling device projecting in pairs on both sides, and a regulating member (b) that regulates the supply of a succeeding stem-culm from the movement locus of the needle (7) to the binding space side during binding operation. 24) interlocking with the operation of supplying the string of the needle (7). Switching to the posture and the like of the regulation posture when the cord supply inoperative needles (7) is released, the needle (7) stems 稈結 flux machine linked to are constituted on.