JPH0824470B2 - String threading device for binding unit of grain culm - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Application The purpose of the present invention is a technique for facilitating string threading in a grain culm binding portion such as a binder.

(B) Prior art When stringing a binder or the like, it is necessary to pass a string brake device, a slack removing rod, a string guide rod, etc., and finally through a string hole of the needle, which is a complicated procedure, Since this work also needs to be performed below the binder transport guide plate, the work is troublesome for the operator. Further, it is easy for the operator to make a mistake in threading, and most of the binder binding errors are caused by the mistake in threading.

As a conventional technique for simplifying the stringing work,
The ones disclosed in JP-A-59-33234 and JP-A-61-60413 are known.

However, in both of the conventional techniques, when inserting a string brake device or a slack removing rod at the time of stringing, an operator's auxiliary work is required separately, and again, if you do not fully understand the technique of automatic stringing, There was a possibility that an operation error would occur.

(C) Problems to be Solved by the Invention The present invention relates to a cord brake device arranged in the passage path of the binding cord by rotating the cord passing lever before operating the recoil handle for passing the cord. The slack removing rod is also configured to be arranged in the most convenient state for stringing.

After the completion of the stringing, the stringing arrangement lever 9 is returned to the original bundling work position so that the stringing can be surely performed without any mistake.

(D) Means for Solving the Problems The object of the present invention is as described above, and a configuration for achieving the object will be described below.

The end portion of the binding cord M of the binding cord cylinder A housed in the cord case 32 is arranged in the set groove 2c formed between the flexible rod feeding wheel body 6 and the cord brake device, and the flexible rod feeding wheel body 6 is used. On the string locking projection 5 at the tip of the flexible rod 4 through which the string is passed,
The binding string M of the set groove 2c is hooked, passed through the string braking device, the slack removing rod 7 and the guide pipe 1, and the needle 18
In the configuration in which the cord passing through the cord hole 18a, the cord brake device is released to allow the cord passing flexible rod 4 and the binding cord M to pass by operating the cord passing arrangement lever 9 at the time of passing the cord.
The slack removal rod 7 is moved to an opening provided in the middle of the guide pipe 1, which is a position where the stringing flexible rod 4 and the binding string M can pass by operating the stringing arrangement lever 9 during stringing. It is configured to do so.

Further, the cord brake device is composed of a cord brake plate 10, a brake roller 12, and a brake release cam 21 that releases the cord brake plate, and the brake release cam 21 is rotated by operating the cord passing lever 9. In association with this, the slack removing rod 7 is moved and arranged on the string passage of the binding string M.

(E) Embodiment The purpose and configuration of the present invention are as described above. Next, the configuration and operation of the embodiment shown in the accompanying drawings will be described.

FIG. 1 is a plan view of a binder provided with a string threading device of the present invention, FIG. 2 is a plan view of a string threading device which is a main part of the present invention in a string set state, and FIG. 3 is a plan view of a string threading end state. Fig. 4 is a plan view showing the state of the cord in the binding device part, Fig. 5 is a side view of the cord threading device part, Fig. 6 is a rear sectional view of the recoil device 24, and Fig. 7 is a cord brake. FIG. 6 is a rear cross-sectional view of a portion of the device and the slack removing rod 7.

The overall configuration will be described with reference to FIG. The binder has a raising device B arranged at the front end, and a conveyance guide plate C is provided upright at the rear part of the raising device B to guide the cut grain culms laterally. A binding device is disposed below the raising device B and the transport guide plate C, and a needle 18 and a binding clutch door 28 are disposed near the transport passage.

The string case 32 is arranged above the mission device between the engine E and the transport guide plate C, and the binding string cylinder A is the case.
It is mounted on 32. The end portion of the binding cord M is taken out from the binding cord cylinder A and threaded through the cord hole of the needle 18.

The stringing device of the present invention is fixed on the right frame of the operation handle 13. The storage pipe 2 is arranged along the right side portion of the operation handle 13, and the rear portion of the stringable flexible rod 4 is stored in the storage pipe 2. 29 is a discharge rod of the binding device.

Next, the structure of the essential part of the present invention will be described with reference to FIGS. 2, 3, and 7.

A support plate 14 is fixed on the operation handle 13. A recoil device 24 is arranged on the lower surface of the support plate 14. A recoil wire 3a for operating the recoil device 24 is projected in a direction perpendicular to the operation handle 13. A recoil handle 3 is fixed to the end of the recoil wire 3a.

By pulling the recoil handle 3 in the direction perpendicular to the operation handle 13, the recoil shaft 15 rotates and the flexible rod feeding wheel 6 is driven. When the operator releases the recoil handle 3, the recoil wire 3a and the recoil handle 3 are rewound by the rewinding force of the recoil spring in the recoil device 24.

The flexible rod 4 is rotated by the rotation of the flexible rod feeding wheel 6
To pay off. A guide roller 8 is arranged close to the circumference of the flexible rod feeding wheel body 6, and the stringing flexible rod 4 is engaged by both the flexible rod feeding wheel body 6 and the guide roller 8. It is something that is paid out.

In the present embodiment, the stringable flexible rod 4 has a structure in which a screw protrusion is wound around the outer periphery of the wire, and the tooth portion of the flexible rod feeding wheel body 6 also formed in a gear shape meshes with the screw protrusion. , So that it can be extended.

The storage pipe 2 is divided into front and rear at an engaging portion with the flexible rod feeding wheel body 6, and the rear storage pipe 2b serves to store the flexible rod 4 completely through the string, but the front storage In the pipe 2a, the set groove 2c for setting the binding string M and the string locking projection 5 is formed in a notched groove shape. The set state of the binding cord M in the set groove 2c is configured as shown in FIG. The string locking projection 5 fixedly provided at the tip of the flexible string rod 4 has the flexible string rod 4 recoil device 24.
In the state of being rewound by the above, it is stored in the rear portion of the front storage pipe 2a rather than the set groove 2c as shown in FIG.

A string guide plate 23 is arranged at the front end of the support plate 14, and the string guide plate 23 guides the binding string M drawn from the binding string tube A of the string case 32, and the binding string M is the string guide plate. It passes through the guide holes 23a of 23 and is inserted into the guide pipe 1. The guide hole 23a is provided with an arcuate guide surface in the pulling-out direction so that the cord is not hooked.

The binding cord M is used to eliminate a binding error due to slack before the binding cord M is threaded through the cord hole 18a of the needle 18.
It is necessary to thread the inside of the slack removing rod 7, and this operation is automatically performed by pulling the recoil handle 3.

That is, as shown in FIG. 7, the cord brake plate 10 and the brake roller 12 are arranged in a pressed state by the braking spring 19 at a position immediately before exiting the guide hole 23a of the cord guide plate 23. When the binding string M is pressed by the plate 10 and the brake roller 12, the friction braking force acts. Reference numeral 20 is a braking force adjusting handle of the braking spring 19, and 19a is a spring rod.

Next, the configuration of the slack removing rod 7 will be described. The slack removing rod 7 has a structure in which the front and rear ends of the binding cord M are locked and the central portion thereof is pulled by a ring-shaped rod having spring force. In the present invention, the guide pipe 1 is rear portion. The guide pipe 1b and the front guide pipe 1a are divided into two parts, and the binding cord M is taken out in the direction of the slack removing rod 7 from the dividing part.

Therefore, it is necessary to arrange the ring portion of the slack removal rod 7 at a position separated from the guide pipe 1, and it is difficult to pass the slack removal rod 7 through the flexible rod 4.

Therefore, when stringing, it is necessary to arrange the slack eliminating rod 7 concentrically with the guide pipe 1.

In addition, the string-placing flexible rod 4 and the string-locking projection 5 at its tip are
It is necessary to pass between the cord brake plate 10 and the brake roller 12, but since it is impossible to pass in the braking state, a device for releasing the cord brake plate 10 at the time of passing the cord is provided. Is there. And the string brake plate
At the same time when the slack removing rod 7 is threaded at the same time as the release of 10, the device for rotating to the concentric position of the guide pipe 1 is arranged.

That is, the string passing lever 9 has this function. By rotating the string passing lever 9, the brake roller shaft 22 of the brake roller 12 is rotated, and the brake release cam 21 is fixed to the upper end of the brake roller shaft 22. With the rotation of, the upper end of the string brake plate 10 pivotally supported at the lower end is opened. The brake release cam 21 allows the string locking projection 5 and the string-passing flexible rod 4 to pass through the space where the string brake plate 10 is opened.

At the same time, a winding spring portion that constitutes the base of the slack removal rod 7 is fixed to the brake roller shaft 22, and the slack removal rod 7 is rotated by the string threading arrangement lever 9 to form the guide pipe 1 as shown in FIG. It is rotated to the concentric position. In order to prevent the slack removing rod 7 from going over the concentric position of the guide pipe 1 due to the rotation of the string passing lever 9,
The slack removal rod stopper 11 is arranged on the side surface of the guide pipe 1 opposite to the slack removal rod 7.

With this construction, when threading up to the needle 18, first, the threading arrangement lever 9 is rotated to bring the threading state as shown in FIG. 3, and the binding string M is placed at the position of the setting groove 2c in FIG. When the recoil handle 3 is pulled in the set state, the string-passing flexible rod 4 and the string-locking projection 5 are attached to the storage pipe 2
The needle is guided from the guide pipe 1 through the slack removing rod 7 arranged at a concentric position. Draw out in a direction approximately perpendicular to the tip of 18
The flexible rod 4 with the stopper 4a at the position passing through the inside.
The protruding state of is stopped. Operator is a cord hole
The binding string M in the state of passing through 18a is taken out and hooked and set in the state shown in FIG.

FIG. 4 shows a plan view of the binding device portion. The binding string M is a positioning piece 25 fixed to the right end of the knot frame 27.
The release rod is stored in a retracted position.
29 It is hooked on the locking piece 26 provided on the crank arm for driving and stopped. In that state, the binding clutch door 28
When pulling the clutch and putting the clutch in, the binding action is performed in an empty state. The binding cord M is guided by the needle 18 to the knot building 30 and the knot holder 31 in the knot frame 27. The state held at 31 is created. After that, the end of the binding string M cut by the string cutting blade is pulled by the rotation of the release rod 29, so that the string threading operation is completed by removing it from the locking piece 26 and removing it. 33
Is a packer.

FIG. 5 is a side view of the string threading device portion, FIG. 6 is a rear cross-sectional view of a portion of the recoil device 24, and FIG. 7 is a rear cross-sectional view of a portion of the string brake device and the slack removing rod 7.

The support plate 14 is fixed on the operation handle 13,
The recoil device 24 is arranged inside. The recoil device 24 includes a wire pulley 24c that winds the recoil wire 3a, and the wire pulley 24c disposed inside the wire pulley 24c.
Is pulled to accumulate energy, and when the recoil handle 3 is released, the energy causes the recoil wire to recoil.
It is composed of a recoil spring 24a that winds 3a around the wire pulley 24c. Wire pulley 24c
Is fixed to the recoil shaft 15, the recoil spring 24a fixes the outer end to the wire pulley 24c1, and the inner end is fixed to a part of the support plate 14 via the cylindrical shaft 24d.

(F) Effects of the Invention Since the present invention is configured as described above, it has the following effects.

Since it is configured as claimed in claim 1, the string brake device and the slack removing rod 7 are the most troublesome parts in the string threading operation, and the most difficult to automate the string threading operation. Since both of them can be changed to a state in which they can be threaded by linearly passing the binding string M by rotating the string threading arrangement lever 9, the operator only pulls the recoil handle 3 and does not take a troublesome procedure. It is possible to perform stringing.

Further, although the structure is such that the string passing position can be changed by the string passing lever 9, the basic structure of the conventional string brake device and the slack removing rod 7 is not destroyed during the normal cutting and binding work. Therefore, stable bundling performance can be obtained.

As described in claim 2, it is composed of a cord brake plate 10, a brake roller 12, and a brake release cam 21 for releasing the cord brake plate. Since the slack removal rod 7 is moved and arranged on the string passage of the binding cord M in conjunction with the rotation, the slack removal rod 7 can be moved by the movement of the brake release cam 21 for the cord brake device. Since it can be performed, it is possible to move the string braking device and the slack eliminating rod 7 to the string passing position of the binding string M at the same time, and it is possible to reduce the occurrence of mistakes in the string threading work. is there.

[Brief description of drawings]

FIG. 1 is a plan view of a binder provided with a string threading device of the present invention, FIG. 2 is a plan view of a string threading device which is a main part of the present invention in a string set state, and FIG. 3 is a plan view of a string threading end state. Fig. 4 is a plan view showing the state of the cord in the binding device part, Fig. 5 is a side view of the cord threading device part, Fig. 6 is a rear sectional view of the recoil device 24, and Fig. 7 is a cord brake. FIG. 6 is a rear cross-sectional view of a portion of the device and the slack removing rod 7. A ... Bundling cord tube M ... Bundling cord 1 ... Guide pipe 2 ... Storage pipe 2c ... Set groove 3 ... Recoil handle 4 ... String passing flexible rod 5 ... String locking protrusion 6 ... Flexible rod feeding ring 7 ... Slack removal Rod 9 ... String passing lever 10 ... String brake plate 14 ... Support plate 24 ... Recoil device

Claims (2)

[Claims] 1. An end portion of a binding cord M of a binding cord cylinder A housed in a cord case 32 is arranged in a set groove 2c formed between a flexible rod feeding wheel 6 and a cord brake device, and a flexible rod is provided. The binding string M of the set groove 2c is hooked on the string locking projection 5 at the tip of the string-passing flexible rod 4 which is unwound by the unwinding wheel 6, and passes through the string braking device, the slack removal rod 7 and the guide pipe 1. Then, in the configuration in which the string 18 is inserted into the string hole 18a of the needle 18, the string brake device operates to operate the string passing lever 9 to release the string passing flexible rod 4 and the binding string M so as to pass therethrough. The slack removing rod 7 is an opening provided in the middle of the guide pipe 1 at a position where the cord passing flexible rod 4 and the binding cord M can pass by operating the cord passing lever 9 when passing the cord. String tying device in the grain culm bundling part, characterized by being configured to move to . 2. The cord brake device according to claim 1, which comprises a cord brake plate 10, a brake roller 12, and a brake release cam 21 for releasing the cord brake plate 10, and a cord threading arrangement lever 9 is provided. The slack removing rod 7 is moved and arranged on the string passage of the tie string M in association with the rotation of the brake release cam 21 by the operation of.