JPH07112386B2 - 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 threading a binder or the like, it is necessary to pass through a string brake device, a slack removing rod, a string guide rod, etc., and finally through a string hole of the needle of the binding part, 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.

As a conventional technique for simplifying the stringing operation, there is Japanese Patent Laid-Open No. Sho 61-61.
-104913, JP 59-33234, JP 6
It is known that the one disclosed in JP-A 1-60413 is known.

In JP-A-61-104913, a cord brake device is arranged between the binding cord cylinder and the set groove, so that the operator causes the binding cord to pass through the cord braking device each time the cord is threaded. In addition, it was necessary to manually process it so that it was placed in the set groove 2c.

In Japanese Utility Model Publication No. 59-33234, it is necessary to tie a guide string and a binding string when threading the string, and even if only the guide pipe can be passed by the guide string, the last needle. There was a problem that it could not pass through to the string hole.

In Japanese Unexamined Patent Publication No. 61-60413, there is a problem in that the binding string does not pass properly due to clogging in the guide pipe, resulting in lack of certainty.

(C) Problems to be Solved by the Invention The present invention is designed so that the operator does not guide the string until the roller finally passes through the string hole of the needle, and the high-pressure air is not used to pass the string through the flexible space. This is done mechanically.

Further, the work of setting the binding cord on the cord brake device is also automatically performed. Further, the operation of the flexible rod passing through the cord is interlocked with the recoil device, and the returning operation is automatically performed by the recoil device.

Further, after the flexible stringing rod is inserted into the string hole of the needle, a stopper is provided to prevent the flexible stringing rod from being further extended, and the flexible stringing rod is disengaged from the feeding device. It was constructed so that it would never happen.

(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.

A set groove 2c for pulling out the binding cord M from the binding cord cylinder A housed in the cord case 32 and temporarily placing the end portion of the binding cord M.
Is provided in the storage pipe 2 between the feeding device K and the string brake device 10, and the string passing flexible rod 4 for hooking the end portion of the binding string M placed in the set groove 2c at the tip is provided, The stringing flexible rod 4 is housed in the storage pipe 2, and the stringing flexible rod 4 is configured to be unrollable by the feeding device K arranged in parallel with the storage pipe 2, and the tip is hooked on the stringing flexible rod 4. In the stopped state, the string passing flexible rod 4 and the binding string M pass through the string braking device 10, and the string braking device 10 and the needle 18 of the grain-cullet binding part.
The guide pipe 1 disposed between the cord 18 and the cord hole 18a of the needle 18 passes through the cord hole 18a of the needle 18.

In addition, the string-passing flexible rod 4 that locks the end of the binding cord M of the binding cord cylinder A housed in the cord case 32 is fed out in conjunction with the recoil device 24 provided in the feeding device K, and automatically. It is configured so that it can be returned.

Further, the needle 18 in the grain culm binding portion is stopped at the tip position of the guide pipe 1, and the string passing flexible rod 4 that locks the end portion of the binding string M of the binding string tube A housed in the string case 32.
It is configured so that only the stringing flexible rod 4 is returned again after the stringing flexible rod 4 has passed through the string hole 18a.

In addition, a stopper 4a is fixedly provided at the end of the flexible string rod 4, and the tip of the flexible string rod 4 is a needle 18 at the binding portion.
The stopper 4a is locked at a position where the cord 4 has passed through the cord hole 18a at the stop position so as to stop the feeding of the cord passing flexible rod 4.

(E) Embodiments The object and structure of the present invention are as described above. Next, the structure 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 and FIG. 4 are plan views showing the state of the cord in the binding device section.

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 moving 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 conveyance guide plate C, and the binding string cylinder A is the string 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 on the discharge rod of the binding device.

Next, the configuration of the main part of the present invention will be described with reference to FIGS. 2, 3, and 4. A support plate 14 is fixed on the operation handle 13, and a recoil device is provided on the lower surface of the support plate 14.
24 are arranged. 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 fed out by the rotation of the flexible rod feeding wheel 6. 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. , Is something to be 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 stringing flexible rod 4 has a function of being pulled out by hooking the binding string M in the direction from the storage pipe 2 to the guide pipe 1 by the rotation of the flexible rod feeding ring 6, and is arranged in a meandering manner. In order to pass the inside of the guide pipe 1 while bending, it is necessary to have flexibility.

Therefore, the stringable flexible rod 4 may be any rod that has rigidity that is not defeated by the resistance of the binding string M and that has the property of bending along the bending of the guide pipe 1.

In this embodiment, screw protrusions are attached to the outer circumference of the wire, but a rod of synthetic resin may be fed out by friction, or toothed portions may be provided to form a rack shape. Further, the flexible rod feeding wheel body 6 may be a synthetic resin gear or a friction body. 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 is completely threaded through the flexible rod 4.
The front storage pipe 2a has a set groove 2c in which the binding string M and the string locking projection 5 are set 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 stringing rod 4 has the flexible stringing rod 4 rewound by the recoil device 24 in the front storage pipe 2a as shown in FIG. That is, it is stored in the rear part of the set groove 2c.

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 a guide surface along the tip of the front storage pipe 2a in the pulling-out direction so that the cord is not hooked.

The binding cord M is a cord brake device for eliminating a binding error due to slack before the cord hole 18a of the needle 18 is threaded.
It is necessary to pass through the slack removing rod 10 and the slack removing rod 7. This operation also requires the recoil handle 3 after operating the string passing lever 9.
It is configured so that it can be mechanically pulled by pulling.

That is, the string brake device 10 and the brake roller 12 are arranged in a pressed state by the braking spring 19 at a position immediately before leaving the guide hole 23a of the string guide plate 23, and the string brake device 10 and the brake roller 12 bind the string together. The frictional braking force acts when M is pressed. Reference numeral 20 is a braking force adjusting handle of the braking spring 19.

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.

Further, it is necessary that the stringing flexible rod 4 and the string locking projection 5 at the tip thereof pass between the string braking device 10 and the brake roller 12, but cannot pass in the braking state. Therefore, a device for releasing the string brake device 10 at the time of threading the string is provided. At the same time that the cord brake device 10 is released, when the slack removing rod 7 is threaded, a device for rotating the guide pipe 1 to the concentric position is arranged.

That is, the string passing lever 9 has this function.
The string passing lever 9 is an arm 16 pivotally supported on the recoil shaft 15.
The arm 16 is rotated by rotating the string threading arrangement lever 9, and the set arm 17 locked with the arm 16 is rotated. The set arm 17 is fixed to the brake roller shaft 22 of the brake roller 12, and the brake release cam 21 is fixed to the upper end of the brake roller shaft 22. It moves by turning to open the upper end of the string brake device 10 pivotally supported at the lower end. The brake release cam 21 allows the string locking projection 5 and the string-placing flexible rod 4 to pass through the space where the string brake device 10 is opened.

At the same time, a winding spring portion that constitutes the base of the slack eliminating rod 7 is fixedly mounted on the brake roller shaft 22, and the slack eliminating rod 7 is rotated by the string threading arrangement lever 9 so as to move to the guide pipe 1 as shown in FIG. It is rotated to the concentric position. The slack removing rod 7 is placed on the side of the guide pipe 1 opposite to the slack removing rod 7 so as not to overshoot the concentric position of the slack removing rod 7 guide pipe 1 by the rotation of the string passing lever 9. It is arranged.

With this configuration, when threading, the string threading lever 9 is first rotated to bring the threading state as shown in FIG.
With the binding cord M set in the position of the set groove 2c in the figure,
By pulling the recoil handle 3, the string-passing flexible rod 4 and the string-locking protrusion 5 are pushed out of the storage pipe 2, and the binding string M is hooked at the tip of the string-brake device in the open state.
At the position where it passes through 10 and passes through the slack removing rod 7 arranged at the concentric position, is guided in the guide pipe 1, exits in a direction substantially perpendicular to the tip of the needle 18, and passes through the cord hole 18a. The protruding state of the stringable flexible rod 4 is stopped by the stopper 4a. The operator takes out the binding cord M that has passed through the cord hole 18a, hooks it in the state shown in FIG. 4, and sets it.

FIG. 4 shows a plan view of the binding device portion, and the binding string M is a positioning piece fixed to the right end of the knot frame 27.
The position is accurately determined by being locked to 25, and the end is hooked and locked by a locking piece 26 provided on the crank arm portion for driving the discharge rod 29 in the housed state. When the binding clutch door 28 is pulled in this state and the clutch is put in and the binding action is performed in the empty state, the binding string M is moved by the needle 18 to form the knot frame.
The binding string M is guided to the nodule building 30 and the nodule holder 31 in 27 to create the state of being held by the nodule holder 31. 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 sectional view of the recoil device section, and FIG. 6 is a support plate.
FIG. 14 is a rear view of a portion of 14 and a string passing arrangement lever 9.

The support plate 14 is fixedly mounted on the operation handle 13, and the recoil device 24 is arranged inside. The recoil device 24 is provided with a wire pulley 24a for winding the recoil wire 3a and an inside thereof, and when the recoil handle 3 is pulled, the energy is taken up to accumulate energy, and when the recoil handle 3 is released, the energy is applied to the recoil wire 3a.
Is composed of a recoil spring 24b for winding the wire around the wire pulley 24a. The wire pulley 24a is fixed to the recoil shaft 15, the recoil spring 24b has an outer end fixed to the wire pulley 24a, and an inner end fixed to a part of the support plate 14.

An arm 16 is pivotally supported on the recoil shaft 15, and a string-placing lever 9 is fixed to the arm 16. A guide groove 14a for maintaining the operation state of the string passing lever 9 is formed on the rear surface of the support plate 14. Reference numeral 34 is a cover of the feeding device.

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

Firstly, since it is configured as in claim 1, the end of the binding cord M pulled out from the binding cord cylinder A is arranged in the set groove 2c, and the stringing flexible rod 4 is fed from the feeding device K. By unwinding, the binding string M is hooked on the tip of the string-passing flexible rod 4 and passes through the string braking device 10, the slack removal rod 7 and the guide pipe 1, so that the binding string M does not have rigidity.
In addition, the stringing flexible rod 4 acts as a sub bar, and the binding string M can be passed in a rigid state, so that the stringing can be performed without mistake.

Secondly, since the cord passing flexible rod 4 projected by the feeding device K can be automatically returned by the recoil device 24 because it is configured as in claim 2, the binding string M The operation of passing the tip through the string hole 18a and then returning only the string-passing flexible rod 4 to the original position can be continuously performed as a series of operations.

Thirdly, since the cord hole 18a of the needle 18 is surely arranged at the tip of the guide pipe 1 because it is configured as in claim 3, the operation of passing the binding cord M through the cord hole 18a is also a mistake. It can be done without it. Further, when returning the stringable flexible rod 4 from the string hole 18a, the binding string M is left out of the hooked state with the tip of the stringable flexible rod 4 and therefore the stringed state can be obtained. is there.

Fourthly, since it is configured as in claim 4, the stringing flexible rod 4 is prevented from being further extended at the position where the tip of the stringing flexible rod 4 has passed through the string hole 18a. To
Since the stopper 4a is provided, the operator pulls out the stringing flexible rod 4 too much, and the stringing flexible rod 4 is fed out by the feeding device K.
There is no need to get out of the way.

[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. 4 and 5 are plan views showing a state of the cord in the binding device portion, FIG. 5 is a side sectional view of the recoil device portion, and FIG. 6 is a rear view of a portion of the support plate 14 and the cord passing arrangement lever 9. . A: Bundling cord cylinder 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 ... Yes Flexible rod feeding wheel 7 …… Slack removal rod 8 …… Guide roller 9 …… Leg threading arrangement lever 14 …… Support plate 24 …… Recoil device

Claims (4)

[Claims] 1. A set groove 2c for pulling out a binding cord M from a binding cord cylinder A housed in a cord case 32 and temporarily placing an end portion of the binding cord M, a feeding device K and a cord braking device 10. And a flexible stringable rod 4 for hooking the end portion of the binding cord M placed in the setting groove 2c at its tip end.
The stringing flexible rod 4 is accommodated in the storage pipe 2, and the stringing flexible rod 4 is configured to be extendable by a feeding device K arranged in parallel with the storage pipe 2, and the distal end of the stringing flexible rod 4 is made into the stringing flexible rod 4. In the state of being hooked, the flexible string rod 4 and the binding string M pass through the string braking device 10, and the guides are arranged between the string braking device 10 and the string hole 18a of the needle 18 of the grain-cullet binding part. A string threading device in a grain culm bundling portion, which is configured to pass through the pipe 1 and through the string hole 18a of the needle 18. 2. A feeding device K for feeding a string-passing flexible rod 4 which locks an end portion of a binding cord M of a binding cord cylinder A housed in a cord case 32.
The string threading device in the grain culm bundling part according to claim 1, which is configured so as to be fed out and automatically returned in association with the recoil device 24 provided in the above. 3. A string threadable for locking the end of the binding string M of the binding string tube A housed in the string case 32 with the needle 18 in the grain culm binding part stopped at the tip position of the guide pipe 1. The grain bran bundling part according to claim 1 or 2, wherein the flexible rod (4) is fed out, and after the stringable flexible rod (4) has passed through the string hole (18a), only the stringable flexible rod (4) is returned again. Stringing device in. 4. A stopper 4a is fixedly provided at a terminal end of the flexible stringing rod 4, and a tip of the flexible stringing rod 4 passes through the string hole 18a at a stop position of the needle 18 in the binding portion. The string threading device in the grain culm binding part according to claim 1 or 2, wherein the stopper 4a is locked to stop the feeding of the string threadable flexible rod 4.