JP3330395B2 - Knotting device of stem culm binding machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a knotting device for a stem-and-culm binding machine, and more particularly to a string holder structure of such a knotting device.

[0002]

2. Description of the Related Art Conventionally, in a stem / culm binding machine in which a needle is disposed above a needle and a building and a string holder and the like are arranged below a binding passage, maintenance of the knotting mechanism is facilitated. In order to achieve this, the platform that covers this knot mechanism is configured so as to be able to swing open and close.
It is known from JP 125030.

[0003]

In such a configuration, since the pressure of the holder spring is adjusted by the platform, there is a problem that a stable holder load cannot be obtained. Also, when the platform is opened, the holder becomes free and the clamped cord comes off.
Each time it was opened, it was necessary to re-hold the string on the holder.

The present invention has been made to solve the above-mentioned conventional problems, and has taken the following technical measures to achieve the above object.

[0005]

According to the present invention, the holder body 24 fitted on the drive rotary shaft 23 protruding from the notter base 18 is urged toward the notter base side by a spring 26 acting from the outside of the holder body. And a cord holding piece 27 protruding from the outer peripheral surface of the holder body and the knotter base.
And a holder member configured to be able to insert and remove the holder main body 24 with respect to the drive rotary shaft 23, and to support an outer end of the spring. 25 is slidable in the axial direction of the holder main body and supported by the holder main body in a state where it is not detached, and a pressing operation body 31 is provided in connection with the receiving member 25;
The pushing operation body 31 is pushed and displaced against the spring 26.
Pressing operation means for releasing the lock operation for releasing the pressing operation
It is characterized in that a removing mechanism is provided, a platform 19 that covers the knot mechanism A is configured to be swingably openable and closable, and a lock mechanism capable of locking and maintaining the platform in a closed position is provided.

[0006]

The lock is released by operating the first lever.
When the release operation is performed, the lock of the closing posture of the platform by the lock mechanism is released. Then, when the platform is rocked and opened, the lower part of the knot mechanism such as the building or the holder is largely opened, and the wrapped string or the like can be removed.

Next, when the unlocking mechanism of the unlocking mechanism is operated by operating the rotary cam by the swinging operation of the second lever, the pressing state of the spring receiving member is released by sliding the pressing operation body downward. Since the holder is released downward and the holder spring is in a decompressed state, string waste accumulated in the holder can be easily removed, and the load adjustment of the holder spring can be easily performed.

[0008]

Therefore, according to the present invention, when the platform is swung and opened by operating the first lever, the lower part of the knot mechanism such as a building or a holder is largely opened. It is easy to remove the wrapped string and the like. By operating the second lever, adjustment of the load according to the type of the string can be easily performed without using any tool. Also, since a dedicated lever is used, it is easy to ensure accuracy.

Further, since the holder becomes free, it is easy to clean string waste and the like.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings. Reference numeral 1 denotes a transport device for transporting the waste from the threshing device to the rear in a sideways state, and a waste cutter below the transport device.
2 are arranged. Behind the conveying device 1, a stocking device 4 having a reciprocating and swingable stock end aligning plate 3 for tapping and aligning the stock ends of the straw and a binding device 5 for collecting and binding the straw to a predetermined amount. A straw tying machine 6 is provided.

The stocking device 4 and the binding device 5 are slidably mounted on a guide rail 8 via a slide frame 7. Reference numerals 9a and 9b denote conveyer chains, which are arranged side by side on the left and right so as to be rotatably driven. Reference numeral 10 denotes a swing arm for reciprocatingly swinging the stock end aligning plate 3.
Reference numeral 1 denotes a swing drive arm.

The stock arranging device 4 and the binding device 5
Is screwed around a helical shaft 12 arranged in the same direction as the guide rail 8, and the helical shaft 12 is driven forward and reverse by a motor 13, so that the two devices 4, 5 move on the guard rail 8 in the same lateral direction. It is configured so that it can be driven to slide.
Next, the drive control system will be described. A frame 14 extending from the stock arranging device 4 toward the forward straw transport path side is described.
A pair of sensors 15a for detecting the end position of the straw
15b is installed in the direction of the stem of the straw, and the sensor 15 for detecting the stock end position is enabled to operate according to the detection result of the presence of the straw by the sensor 16 for detecting the presence of the straw. . In addition, since the sensor 16 for detecting the presence or absence of straw is provided in the vicinity of the raking and transporting chain 9a on the stock source side, the presence or absence of the culm can be reliably detected even when the amount of straw transported from the machine is small. .

The stock end position detecting sensor 15
a, 15b, the base of the waste straw is the sensor 15
When both a and 15b do not contact each other, it is detected that the straw is a short culm, the motor 13 is driven to rotate forward, the helical shaft 12 is rotated, and the stock aligning device 4 and the binding device 5 are connected to the straw. Move to the tip side. Then, when the sensor 15a on the tip side comes into contact with the base of the stock, the driving of the motor 13 is stopped.
When the base portion of the stock contacts both the sensors 15a and 15b, it detects that the straw is a long culm, drives the motor 13 in the reverse direction, and also rotates the spiral shaft 12 in the reverse direction. 4 and the binding device 5 are configured to be moved in the direction opposite to the tip of the spike in the opposite direction.

The tying device 5 arranges a knotting mechanism A composed of a knotter bill B and a string holder H and a discharge arm F above a tying path K, and attaches a tying string to the knotting mechanism A. A configuration in which a needle N to be supplied, a packer P for sending waste into the binding passage K, and a door D for detecting that the waste is sent to the binding passage K by a predetermined amount or more is arranged below the binding passage K. I have.

The knot mechanism A has a body frame 17 and a knotter base 18 for supporting a knotter building B and a string holder H. A platform 1 as a knot mechanism guide cover for forming the upper surface of the binding path K around the horizontal axis X of the extension end of the body frame 17 on the front side of the body.
Reference numeral 9 is pivotally supported so that the platform 19 is fixed at a proper position by inserting the lock pin 21 into the hole 22 by operating the first lever 20.

A driving rotary shaft 23 projects from the notter base 18, and a holder main body 24 having a tapered cone-shaped outer peripheral surface 24a can be inserted and removed in a spline structure on the driving rotary shaft 23, and the driving rotary shaft can be rotated. It is slidably mounted in the axial direction of the shaft 23. A receiving member 25 that is slidable and rotatable with respect to the holder main body is externally fitted to the holder main body 24, and a spring 26 is interposed between the receiving member 25 and the rear surface of the outer peripheral surface 24 a of the holder main body 24. Is equipped.
The binding strap is held between the inner surface of the strap holding piece 27 extending from the notter base 18 and the outer peripheral surface 24a of the holder body 24.

When the unlocking mechanism 32 is unlocked by operating the cam body 30 by swinging the second lever 28 around the pin shaft 29, the pressing operation body 31 slides downward, thereby causing the spring receiving member 31 to slide. The pressed state against the member 25 is released. And the second
When the cam 30 is operated by the anti-swinging operation of the lever 28 around the pin shaft 29 to perform the locking operation of the lock release mechanism 32, the pressing member 31 slides upward, and the receiving member 25 It is designed to be fixedly maintained in a state of being pressed and displaced against it. A retaining screw 33 of the receiving member 25 is screwed to an end face of the driving rotary shaft 23.

The spring receiving member 25 is provided with two sets of large and small convex locking portions 25a and 25b projecting with a phase change of 90 °, and by rotating the receiving member 25, a pressing operation is performed. The position of the spring receiving member 25 with respect to the holder main body 24 is changed depending on whether the body 31 presses and supports the large convex locking portion 25a or presses and supports the small convex locking portion 25b. The urging force can be switched between high and low stages, and the load can be adjusted depending on the type of the string.

In the embodiment shown in FIG. 11, the horizontal axis X, which is the pivot of the platform 19, is set at a position where it can swing open and close even when the packer P is at the top dead center. When the platform is opened, the door is set at a rear position outside the swing range of the platform so that the door D is not in the way, or is formed in a concave shape as shown in FIG. The inner width of the door D is made wider than the width of the platform 19 so as to be openable.

[Brief description of the drawings]

FIG. 1 is a side view of a straw bundling machine.

FIG. 2 is a rear view of the straw bundling machine.

FIG. 3 is a side view of a main part of the straw bundling machine.

FIG. 4 is a side view of the main part.

FIG. 5 is a side view of the main part.

FIG. 6 is a rear view of a main part of FIG. 4;

FIG. 7 is a sectional view taken along line S ₁ -S ₁ of FIG. 4;

FIG. 8 is a sectional view taken along line S ₂ -S ₂ of FIG. 5;

FIG. 9 is a sectional view of a holder.

FIG. 10 is a perspective view of a knot mechanism.

FIG. 11 is a side view of the binding device.

FIG. 12 is a partially cutaway rear view of the main part.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Conveying device 2 Drain cutter 3 Stock aligning plate 4 Stock aligning device 5 Binding device 6 Discharge binding device 7 Slide frame 8 Guide rail 9 Raised transport chain 10 Swing arm 11 Swing drive arm 12 Spiral shaft 13 Motor 14 Frame 15 Sensor for detecting end position of stock 16 Sensor for detecting the presence or absence of straw 17 Body frame 18 Notter base 19 Platform 20 First lever 21 Lock pin 22 Hole 23 Driving rotary shaft 24 Holder body 25 Receiving member 26 Spooling 27 String holding piece 28 Second lever 29 Pin shaft 30 Cam body 31 Pressing body A Knot mechanism B Notterville D Door-F Discharge arm H String holder-K Binding path N Needle P Packer

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A 1-125030 (JP, U) (58) Fields surveyed (Int. Cl. ⁷ , DB name) A01D 59/00

Claims (1)

(57) [Claims] An outer peripheral surface of the holder main body is urged toward a side of the notter base by a spring acting from outside of the holder main body, the holder main body being fitted to a driving rotary shaft protruding from the notter base. And a string holding piece 27 protruding from the knotter base, wherein a string for binding is held between the holder body 24 and the drive rotary shaft 23 so as to be freely inserted into and pulled out of the holder. Is slidable in the axial direction of the holder main body and supported by the holder main body in a state in which the receiving member 25 does not come off, and is connected to the receiving member 25.
And a pressing operation body 31 is provided.
Pressing means for pressing and displacing against the ring 26;
A lock release mechanism for releasing the pressing operation is provided, and the knot mechanism A
A platform 19 covering the stalk and the stalk-culm binding machine, wherein the platform 19 is configured to be swingably openable and closable, and a lock mechanism capable of locking and maintaining the platform in a closed position is provided.