JPH0636659Y2 - String threading device in grain culm bundling machine - Google Patents

Description

Detailed Description of the Invention (a) Field of Industrial Application The purpose of the present invention is a technique for facilitating stringing in a grain culm binding portion such as a binder.

(B) Conventional technology When threading a binder, it is necessary to pass through a string brake device, a slack eliminating rod, a string guide rod, etc., and finally through a string hole of the needle, which is a complicated procedure. Since the work needs to be performed below the binder conveyance guide plate, the work is troublesome for the operator.

A conventional technique for simplifying the stringing work is disclosed in Japanese Patent Laid-Open No. Sho 61-61.
The publication No. 104913 is publicly known. Further, as a technique for accommodating a flexible rod through which a string is passed, a technique such as Japanese Utility Model Publication No. 57-38979 is known.

(C) Problems to be solved by the invention However, in the prior art, Japanese Patent Laid-Open No. 61-104913, a flexible stringed rod for hooking a binding string and transporting it to the needle is formed in a leaf spring. Therefore, it is not possible to obtain a strong carrying force for the binding cord.

However, if rod-shaped round steel is used, it cannot be rolled up and stored, and it projects rearward in the stored state, so it is necessary to arrange a storage pipe.

In the present invention, the stringing flexible rod is made of round steel to obtain a strong carrying force of the binding string, and the storage pipe is moved rearward so as not to get in the way when the stringing flexible rod is stored. The flexible rod, which is extendedly arranged and is in an activated state, is configured to facilitate the hooking operation with the binding cord.

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

The binding string (M) stored in the string case (32) is attached to the string hooking protrusion (5) at the end of the stringing flexible rod (4) that is projected and stored in association with the operation of the stringing handle (3). A structure in which the cord is inserted and passed through the guide pipe (1) and can be threaded through the string hole (18a) of the needle (18), and the flexible threaded rod (4) is stored in a non-threaded state. The storage pipe (2) extending rearward from the stringing handle (3) such that the stringing flexible rod (4) can pass through the handle (3) in a straight line. It is the string threading device in the grain culm bundling part characterized by having provided.

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

FIG. 1 is a plan view of a binder provided with a string threading device, FIG. 2 is a plan view of the string threading device in a string set state, and FIG.
FIG. 4 is a plan view showing a state in which the string has been threaded, FIG. 4 is a plan view showing a state of the string in the binding device section, FIG. 5 is a side sectional view of the feeding mechanism portion, and FIG.

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 of the raising device (B) to convey the cut grain culm laterally.

The binding device is disposed below the raising device (B) and the transport guide plate (C), and the needle (18) and the binding clutch door (28) are disposed near the transport passage.

The string case (32) has an engine (E) and a conveyance guide plate (C).
And the binding cord cylinder (A) is placed on the cord case (32).

Take out the end of the binding cord (M) from the binding cord tube (A),
Thread up to the string hole of the needle (18).

Next, the configuration of the main part of the stringing device will be described with reference to FIGS. 2, 3, and 4.

A support plate (14) is fixed on the handle (13).

A feeding mechanism (24) is arranged on the lower surface of the support plate (14). A lever connecting part (3a) for operating the feeding mechanism (24) is projected in a direction perpendicular to the handle (13). A string threading handle (3) is fixed to the end of the lever connecting part (3a).

By pulling the stringing handle (3) in the direction perpendicular to the handle (13), the recoil shaft (15) rotates and the flexible rod feeding wheel (6) is driven.

When the operator releases the stringing handle (3), the lever connecting part (3a) and the stringing handle (3) are unwound by the unwinding force of the recoil spring in the feeding mechanism (24).

Further, as will be described later, the engaging piece (3b) at the tip of the string-threading handle (3) is provided with the engaging portion (16) of the string-threading release arm (16).
By being locked with b), the string brake device and the slack eliminating rod (7) are configured to move to the string passing state.

The stringable flexible rod (4) is delivered by the rotation of the flexible rod delivery wheel (6).

A guide roller (8) is arranged close to the circumference of the flexible rod feeding wheel body (6), and the flexible rod rod is threaded by both the flexible rod feeding wheel body (6) and the guide roller. (4) is engaged and fed out.

In the present embodiment, the stringable flexible rod (4) has a structure in which a screw projection is wound around the outer periphery of the wire, and the teeth of the flexible rod feeding wheel body (6) also configured in a gear shape on the screw projection. The parts are configured to engage with each other and to 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 side of the stringing handle (3) is configured to be linear, and the rear storage pipe (2b) is formed. ). The rear storage pipe (2b) communicates with the handle (13) and serves to guide the stringable flexible rod (4) to the storage portion inside the pipe of the handle (13),
The handle (13) functions to completely store the flexible rod (4) through which the string is passed. The front storage pipe (2a) has a notch groove as a set groove (2c) for setting the binding string (M) and the string locking protrusion (5). The set state of the binding string (M) at the time of threading the string is configured as shown in FIG.

The string locking projection (5) fixedly provided at the tip of the flexible stringing rod (4) is shown in FIG. 2 in a state where the flexible stringing rod (4) is unwound by the feeding mechanism (24). Storage pipe (2
It is stored in the rear of the set groove (2c) in a).

A string guide plate (23) is arranged at the front end of the support plate (14), and a binding string (M) pulled out from the binding string tube (A) of the string case (32) by the town string guide plate (23). And the binding cord (M) passes through the guide hole (23a) of the cord guide plate (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 string (M) must pass through the string brake device (10) and the slack eliminating rod (7) before the string hole (18a) of the needle (18) is threaded, and this operation is also a string threading handle. It is configured so that it can be automatically performed by pulling (3).

That is, a friction braking force acts by pressing the cord brake device (10) and the brake roller (12) by the braking spring (19) at a position immediately before leaving the guide hole (23a) of the guide plate (23). Of. Reference numeral (20) is a braking force adjusting handle of the braking spring (19).

Next, the structure of the slack eliminating rod (7) will be described. The slack eliminating rod (7) holds the front and rear ends of the binding cord (M), and the central portion thereof is formed by a ring-shaped rod having a spring force. In this configuration, the guide pipe (1) is divided into a rear guide pipe (1b) and a front guide pipe (1a), and the binding cord (M) is loosened from the divided portion. It is taken out in the direction of the rod (7).

Therefore, the slack eliminating rod (7) needs to have a ring portion arranged at a position separated from the guide pipe (1).
When the slack eliminating rod (7) is in a normal slack eliminating state,
It is difficult to thread the stringable flexible rod (4).

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

Further, the string-placing flexible rod (4) and the string-locking projection (5) at the tip thereof have to pass between the string-brake device (10) and the brake roller (12),
Since it is impossible to pass in the braking state, a device for releasing the string brake device (10) at the time of threading the string is provided.

A device for rotating the slack eliminating rod (7) to the concentric position of the guide pipe (1) is arranged when the slack eliminating rod (7) is threaded at the same time as releasing the cord braking device (10).

That is, as shown in FIGS. 5 and 6, the stringing release arm (16) plays this role.

The stringing release arm (16) is pivotally supported by the recoil shaft (15), and it is the engagement piece (3b) of the stringing handle (3) that operates the stringing release arm (16).

The operator pulls the string passing handle (3) to the side of the machine with the tying string (M) set in the setting groove (2c). The operation causes the tip of the string passing handle (3) to be engaged. The piece (3b) is provided with a fulcrum crossing spring (16a) on the string release arm (16), and the engaging piece (3b).
It is held at the position where it is rotated into the string-threading state.

After the stringing is completed, the stringing handle (3) is returned to its original position by the feeding mechanism (24).
During the return operation of the stringing handle (3), the engaging piece (3b) again engages with the locking portion (16b), and the fulcrum crossing spring (16b).
The string release arm (16) is returned against the a), the string brake device (10) is in the braking position, and the slack eliminating rod (7) is in the slack eliminating position.

That is, the string release arm (16) rotates and the arm (1
6) Set arm (17) via pin (17a) engaged with
Is rotated.

In the set arm (17), the brake roller shaft (22) of the brake roller (12) is fixed, and the brake release cam (21) is fixed at the upper end of the brake roller shaft (22). The release cam (21) moves by the rotation of the set arm (17) 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 set arm (17), as shown in FIG. As described above, the guide pipe (1) is rotated to a concentric position.

The slack eliminating rod stopper (11) is loosened so that the slack eliminating rod (7) supported by the winding spring does not go over the concentric position of the guide pipe (1) due to the rotation of the set arm (17). It is arranged on the side surface of the guide pipe (1) on the side opposite to the strip (7).

With this configuration, when stringing, first, the stringing handle (3) is rotated, and the set arm (17) that is interlocked with the stringing release arm (16) is rotated to rotate the stringing release arm (16). As shown in FIG. 2, the string passing handle (3) is pulled with the binding string (M) set in the setting groove (2c) of FIG. 2 to pull the string passing flexible rod (4) and the string. The locking projections (5) were pushed out from the storage pipe (2), passed through the string braking device (10) in the open position with the binding string (M) hooked at the tip, and were arranged in the concentric position. It passes through the slack eliminating rod (7). Further, guided by the inside of the guide pipe (1), it exits in a direction substantially perpendicular to the tip of the needle (18) and passes through the inside of the cord hole (18a), and at the position where it passes through the stopper (4a), the flexible rod (4) is passed through. The projecting state of) is stopped.

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. The binding string (M) is locked to the positioning piece (25) fixedly provided at the right end of the knot frame (27) to accurately determine the position and terminate. Is a locking piece (26) provided on the arm part of the discharge rod (29) in the stored state
Hang it on and hold it.

In this state, pull the binding clutch door (28) to put in the clutch, and let the binding action in the empty state, the needle (18)
Thus, the binding string (M) is held by the knot building (30) and the knot holder (31) in the knot frame (27). After that, the end of the binding string (M) cut by the string cutting blade is pulled by the rotation of the discharge rod (29), so the string threading work is completed by removing it from the locking piece (26). Of. (33) is a packer.

Next, the feeding mechanism will be described with reference to FIGS.

The support plate (14) is fixed on the handle (13),
The feeding mechanism (24) is arranged inside.

The feeding mechanism (24) is a wire pulley (24a) that winds up the lever connecting part (3a), and is pulled up by pulling a string threading handle (3) arranged inside the wire pulley (24a) to accumulate energy and accumulate the energy. ) Is released, the recoil spring (24b) is configured to wind the lever connecting part (3a) around the wire pulley (24a) by the energy.

The wire pulley (24a) is fixed to the recoil shaft (15), the recoil spring (24b) fixes the outer end to the wire pulley (24a), and the inner end is fixed to a part of the support plate (14). -ing

The recoil shaft (15) and the flexible rod feeding wheel body (6) are not directly connected to each other, and the recoil shaft (15) is not connected.
The locking pin (15a) provided at the upper end of the is interlocked via the differential operation gap (6a) provided at the boss portion of the flexible rod feeding wheel body (6).

By providing the operation difference gap (6a), immediately after pulling the stringing handle (3), the flexible rod feeding wheel (6) does not rotate, and thus the stringing flexible rod (4) also. It does not stick out.

Only after the locking pin (15a) rotates a little and comes into contact with the operation difference gap (6a), the flexible rod feeding wheel (6) rotates and the stringing flexible rod (4) is projected. is there.

Therefore, at the time of the operation difference, the string passing release arm (16) rotates simultaneously with the pulling of the string passing handle (3), so that the string braking device (10) is opened via the set arm (17), Therefore, the slack eliminating rod (7) can be arranged concentrically with the guide pipe (1).

The support plate (14) of the threading device of the present invention is fixed on the right frame of the handle (13).

The flexible rod feeding ring (6) on the support plate (14) causes the stringable flexible rod (4) to be projected / stored to be long enough to reach the position where the front end exceeds the needle (18) at the time of protrusion. Therefore, at the time of storage, it is necessary to store the inside of the front storage pipe (2a) at the front end position and store the rear end largely backward.

If a pipe into which the flexible stringing rod (4) in the stored state is fitted is separately provided, it becomes considerably long. Therefore, in this embodiment, the storage pipe is also used as the handle (13).

The handle (13) has conventionally been formed by bending a pipe material, and the inside of the pipe is in a hollow state, and there is no obstacle even if the stringable flexible rod (4) is stored.

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

First, the degree of freedom in arranging the storage pipe (2) of the stringable flexible rod (4), which requires a considerable length, is increased, and the number of design steps can be reduced.

Secondly, since the storage pipe (2) is made to be linear behind the stringing handle (3), the stringing flexible rod (4) can be easily and lightly moved forward and backward without resistance. The operation of (3) can be performed.

Thirdly, by storing the stringable flexible rod in the storage pipe (2), rusting can be eliminated without being exposed to rainwater.

Fourthly, since the storage pipe (2) of the stringing flexible rod (4) is made linear on the rear side of the stringing handle (3), it is tied to the string locking projection of the stringing flexible rod (4). The string (M) can be reliably engaged, and the binding string can be guided satisfactorily.

Fifthly, the stringing flexible rod (4) and the stringing feeding wheel (6) are surely meshed with each other, and it is possible to prevent the trouble of the reciprocating movement of the stringing flexible rod (4).

In this way, various effects are exhibited.

[Brief description of drawings]

FIG. 1 is a plan view of a binder provided with a string threading device, FIG. 2 is a plan view of the string threading device in a string set state, and FIG.
FIG. 4 is a plan view showing a state in which a string has been threaded, FIG. 4 is a plan view showing a state of a string in the binding device section, FIG. 5 is a side sectional view of a feeding mechanism portion, and FIG. . A: Bundling cord cylinder, M ... Bundling cord 1 ... Guide pipe, 2 ... Storage pipe 2a ... Front storage pipe 2b ... Rear storage pipe 3 ... String passing handle 4 ... String passing flexible rod 5 ... String locking protrusion 6 ... Flexible rod feeding wheel 7 ... Slack removal rod, 10 ... String brake device 13 ... Handle, 16 ... String passing release arm 17 ... Set arm

Claims (1)

[Scope of utility model registration request] 1. A bundling stored in a string case (32) on a string hooking protrusion (5) at the tip of a flexible stringing rod (4) projectingly stored in association with the operation of a stringing handle (3). In a structure in which the string (M) is connected, inserted into the guide pipe (1) and passed therethrough, and the string can be threaded through the string hole (18a) of the needle (18), the flexible threaded rod (4) is not attached. The storage pipe (2) for storing the storage pipe (2) in the stringing state is arranged so that the stringing flexible rod (4) can pass linearly at the rear side of the stringing handle (3) at the handle (3). ) Has been extended to the rear, the string threading device in the grain culm binding part.