JPH07112387B2 - 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 bulletin, JP 59-30666, and JP 5
Those disclosed in Japanese Patent Application Laid-Open No. 9-33234 and Japanese Patent Application Laid-Open No. 61-60413 are known.

In the technique described in JP-A-61-104913, a manually operated cord brake device and a slack removing rod are arranged on the side better than the automatic cord threading device, so that the operator once tries the cord brake device. It was configured to automatically thread the binding cord after passing through the slack removal rod. Therefore, it was not possible to automatically insert the string brake device and the slack removing rod by the stringable flexible rod.

Japanese Utility Model Publication No. 59-30666 discloses a structure in which a cord brake device and a slack eliminating rod are interlocked with each other. However, as in the present invention, the cord passing flexible rod is fed out by the feeding device and the cord passing flexible rod is fed. This is different from the technique of paying out the binding cord.

In the technique described in Japanese Utility Model Publication No. 59-33234, it is necessary to tie a guide cord and a binding cord at the time of threading, and even if only the guide pipe can be passed by the guide cord. However, there was a problem that it was not possible to pass through the string hole of the last needle.

In the technique described in Japanese Patent Laid-Open No. 61-60413, it is necessary for the operator to thread the string braking device and the slack removing rod separately.

(C) Problems to be Solved by the Invention In the present invention, the operator guides the string through the string brake device, the slack removing rod, and finally the string hole of the needle. Instead, it is done mechanically by a flexible rod.

In the automatic string threading device configured as described above, according to the present invention, the guide pipe for guiding the stringing flexible rod in the state where the binding string M is locked is arranged from near the string case to immediately before the needle, and the guide pipe The flexible rod is made passable through the binding string and the string inside.

As a result, the binding cord can be accurately guided to the cord brake device, the slack removing rod, and the cord hole of the needle, and the guide pipe 1 can prevent the cord brake device from dusting. Also, by notching the middle part of the guide pipe and arranging a slack eliminating rod at this part,
The slack removing rod can be threaded at the same time.

A cord guide plate is provided so as to cover a position above the cord brake device and the slack removing rod so that straw dust, dust and the like do not reach these.

(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 from the binding cord cylinder A housed in the cord case 32 is arranged in the set groove 2c formed between the feeding device K and the cord braking device 10, and the cord passing flexible rod fed by the feeding device K. In the structure in which the binding cord M of the set groove 2c is hooked on the tip of the cord 4, passes through the cord brake device 10 and the slack removing rod 7, and is inserted into the cord hole 18a of the needle 18, the cord brake device 10 is The flexible pipe 4 and the binding string M are released so that they can pass through the string, and the slack removal rod 7 is a position where the flexible string 4 and the binding string M can pass when the string is threaded. The guide pipe 1 is constructed so that it can be moved to an opening provided in the middle thereof.
It is placed between and.

Further, a slack eliminating rod stopper 11 for stopping the slack eliminating rod 7 is arranged at the opening of the guide pipe 1.

Further, a guide plate 23 for covering the upper part of the string brake device 10 and the slack removing rod 7 is arranged.

(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 string feeding device K of the present invention is fixedly mounted on the right frame of the operation handle 13. The feeding device K is configured as follows.

Along the right side of the device handle 13, the storage pipe 2
And the rear portion of the flexible rod 4 through which the string is passed is accommodated in the accommodation pipe 2. 29 is a discharge rod of the binding device.

Next, the structure of the feeding device K of the main part of the present invention will be described based on the drawings of FIG. 2, FIG. 3, and FIG.

A support plate 14 is fixedly mounted on the operation handle 13, and 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 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 cord passing flexible rod 4 has a function of being pulled out by hooking the binding cord 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 also arranged in a meandering manner. In order to pass the inside of the 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, a screw projection is attached to the outer circumference of the wire, but a synthetic resin rod may be fed out by friction, or a toothed portion may be provided to form a rack. Further, the flexible rod feeding wheel body 6 may be a synthetic resin gear or a friction body.

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 groove
The set state of the binding cord M in 2c is configured as shown in FIG. As shown in FIG. 2, the string retaining projection 5 fixedly provided at the tip of the flexible stringing rod 4 is the front storage pipe when the flexible stringing rod 4 is rewound by the recoil device 24.
It is stored in the rear part of the set groove 2c in the 2a.

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 string guide plate 23 is arranged above the part of the string brake device 10 and the slack removal rod 7, and the string guide plate 23 prevents dust and straw debris from flowing into the direction of the string brake device 10 and the slack removal rod 7. It is preventing it.

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, and this operation is automatically performed by pulling the recoil handle 3.

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 pie 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. A slack removing rod side stopper 11 is provided on a side surface of the guide pipe 1 on the opposite side of 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 locking it to 25, and the end is hooked and locked to a locking piece 26 provided on the crank arm portion for driving the discharge rod 29 in the stored state. Binding clutch door in that state
When 28 is pulled, the clutch is put in, and the binding action is performed in the empty state, the binding string M is pulled by the needle 18 and the knot frame 27
The binding string M is guided to the knot building 30 and the knot holder 31 inside, and the state held by the knot holder 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 an enlarged plan view of the portion of the cord brake device 10 and the slack removing rod 7, and FIG. 6 is a plan perspective view of the same.

As shown in FIG. 6, a string hanging prevention plate 32a is arranged on the side of the string take-out hole of the string case 32, and the binding string M that is wound in a tubular shape and unwinds sequentially from the inside is unwound at a stretch. It is configured such that it does not reach the recoil wire 3a portion of the string guide plate 23 in a wound state and cannot be blocked because it cannot pass through the recoil wire 3a. Therefore, the binding cord tube A approaches the final end, and the tube state collapses,
The string hanging prevention plate 32a can prevent this from going out of the string case 32 in a wound state.

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

Since it is configured as in claim 1, the binding string M having rigidity is provided by integrally unwinding the string-placing flexible rod 4 and the binding string M so that the string braking device 10 and the slack removing rod 7 are provided. Since it passes through both of them, as in the conventional case, another slack removal rod is provided on the upper side of the string passing device, and the operator does not have to perform complicated manual work to pass these. Of.

Further, since an opening is provided in the middle of the guide pipe 1 and the partial slack eliminating rod 7 is interposed, in the case of stringing, the slack eliminating rod 7 should be arranged concentrically with the guide pipe 1. By this, the inside of the slack removing rod 7 can be threaded by inserting the stringing flexible rod 4.

According to the second aspect of the invention, since the slack eliminating rod stopper 11 is arranged at the opening of the guide pipe 1 at the position where the slack eliminating rod 7 is arranged at the time of stringing,
The slack removal rod 7 will not be raised too much at the time of rotation, can be accurately aligned with the center of the guide pipe 1, and an error may occur in which the slack removal rod 7 and the stringing flexible rod 4 mesh with each other. It's gone.

Since it is configured as in claim 3, the cord guide plate 23
Are arranged upstream of the string brake device 10 and the slack removing rod 7, so that the dust and the straw that fall from the part of the delivery guide plate C are accumulated on the part of the string brake device 10 and the slack removing rod 7. Therefore, the problem that the brake pressure is not constant due to the dust caught in the string brake device 10 and the problem that the slack removal rod 7 is covered with straw are eliminated.

[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 the state of the cord in the binding device section, FIG. 5 is an enlarged plan view of the cord brake device 10 and the slack eliminating rod 7, and FIG. 6 is a plan perspective view of the same. A: Bundling cord cylinder K ... Unwinding device M ... Bundling cord 1 ... Guide pipe 2 ... Storage pipe 2c ... Set groove 4 ... String passing flexible rod 5 ... String locking protrusion 6 ... Possible Flexible rod feeding wheel 7 ...... slack removal rod 8 ...... guide roller 9 …… string threading lever 10 …… string brake device 11 …… slack removal rod stopper 23 …… string guide plate

Claims (3)

[Claims] 1. An end portion of a binding cord M from a binding cord cylinder A housed in a cord case 32 is arranged in a set groove 2c formed between a feeding device K and a cord braking device 10, and is fed by the feeding device K. The binding string M of the set groove 2c is hooked on the tip of the string-placing flexible rod 4, and the string brake device 10 and the slack removing rod 7 are attached.
In the configuration in which the cord brake device 10 passes through the cord and is inserted into the cord hole 18a of the needle 18, the cord brake device 10 has a cord passing flexible rod 4
And the binding string M is released to pass, and the slack removing rod 7 moves to an opening provided in the middle of the guide pipe 1 at a position where the string passing flexible rod 4 and the binding string M can pass when the string is passed. And a guide pipe 1 arranged between the string brake device 10 and the needle 18, so that the guide pipe 1 is arranged between the string brake device 10 and the needle 18. 2. A slack removing rod stopper (11) for stopping the slack removing rod (7) is provided at the opening of the guide pipe (1) according to the first aspect of the present invention. apparatus. 3. A string threading device in a grain-culm bundling part, characterized in that a string brake device (10) according to claim 1 and a guide plate (23) covering the upper part of the slack removing rod (7) are arranged.