JPS6340096Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention sequentially collects stem culm bundles released from a binding device that operates intermittently to release the bundles, and starts releasing the collected stem culm bundles every time the binding device operates a set number of times. This relates to a stem culm bundle collecting and discharging mechanism for a binder configured to automatically switch a stem culm bundle receiver from a bundle receiving position to a releasing release position by rotating a rotary member for the binder, and the mechanism includes a plurality of types arranged side by side. By shifting and selectively engaging one ratchet pawl with the ratchet wheel, the adjustment section for changing the number of bundles collected per discharge can be easily and inexpensively manufactured. It was an attempt to create a structure.

Embodiments of the present invention will be described in detail below with reference to the drawings.

FIG. 1 shows the plane of the binder, and a culm bundle collecting and discharging mechanism 5 is equipped on the side of the machine body, which consists of a front reaping binding part 1, a rear engine 2, a control handle 3, a propulsion wheel 4, etc. There is.

The reaping binding unit 1 is sequentially supplied along a device 6 for raising the planted stem culm into an upright position, a reaping device 7 for cutting the base of the lifted stem culm, and a conveyance cover 8. It is composed of a binding device 9 and the like for binding the harvested stem culms.

As shown in FIG. 2, the bundling device 9 receives the cut stem culms that are successively raked by the raking packer 10 with a door 11 that rotates intermittently at 180 degrees, and collects them in an appropriate amount. , when the appropriate amount is concentrated, the string supply needle 12, the knot building 13,
actuate the string holder 14 to tie the bundled stem culms;
Subsequently, the stem culm bundle is pressed and fed towards the stem culm bundle collecting and discharging mechanism 5 by actuation of the door 11.

The stem culm bundle collecting and discharging mechanism 5 is shown in FIGS.
As shown in the figure, a deck 15a that receives the base of the stem and culm bundle, and a tip receiver 15 that serves as a receiver for the stem and culm bundle.
b, and a receiving plate 15c provided at the rear end of the ear tip receiving device 15b, etc., and a long hole 16 whose stock base is formed in the deck 15a allows the stem culm bundle to be sequentially supplied.
A plurality of stems are sequentially sent backward by the action of bringing the tips into contact with the stump and sending them backward, and the action of moving the tips of their own weight backwards along the rear inclined upper edge S of the tip receiver 15b. Collecting culm bundles, and
The receiving plate 15c is configured to receive and support the rearward movement of the collected stem culm bundle.

The tip receiver 15b is intermittently swung downward about the horizontal axis X on the front end side every time a plurality of stem culm bundles are supplied, and releases the stem culm group to the lateral outside of the machine body. The structure for intermittently rocking the tip receiver 15b, which is configured to be taken out, will be described below with reference to FIGS. 5 to 7. That is, in the figure, 35 is a fixed frame erected from the binding device 9, 18 is a rotational support shaft of the ear tip receiver 15b supported rotatably around the axis at the upper end of the fixed frame 35, and 19 is the above-mentioned support. A return spring 21 that biases a cam plate 20 fixed to the shaft 18 to elastically bias the tip receiver 15b upwardly engages with the engagement recess T of the cam plate 20 to release the stem culm bundle group. An engagement pin that receives and supports the tip receiver 15b that is urged downward by weight; 22 is a rod that connects the engagement pin 21 to a counting mechanism 23 for the number of times of bundling and discharging, which will be described later; 24 is the rod 22; This is a spring that biases the engagement pin 21 toward engagement. The counting mechanism 23 counts the number of set rotational displacements of a timing gear 25 that is installed in the binding device 9 and rotates once for each binding operation to intermittently drive the building 13 and the holder 14. In the figure, 26 is pivotally supported by a support shaft 36 supported by the fixed frame 35, and is pressed and swung by a cam piece 27 protruding from the upper part of the timing gear 25. , and a swinging arm 28 elastically biased downward by a spring 37.
Ratchet pawls 29a, 29b, and 29c are loosely fitted in a shiftable manner to a rotary support shaft 32, which is a round shaft, and is rotatably supported around the axis of the swing arm 26. The ratchet wheel is supported and rotated by the ratchet pawl 28 in fixed amounts in a constant direction, and is configured to detect the number of times the bundle is released as the set rotational displacement amount of the ratchet wheels 29a, 29b, and 29c. has been done.
Further, the linking structure for disengaging the engagement pin 21 based on the counting result of the counting mechanism 23 is provided with a separate structure that rotates integrally with the ratchet pawl 28 on a rotating support shaft 32 that is pivotally supported on the swing arm 26. Locking claw 3
0 is fixed, an engaging portion U capable of engaging with the locking pawl 30 is formed on a rotating member 31 which is pivotally supported on the support shaft 36 and pivotally connected with the rod 22, and the ratchet The locking pawl 30 is moved to the engaging portion U only when the wheel 29a... rotates for the final time within the set rotation amount.
said ratchet wheel 29 for engagement with the ratchet wheel 29.
A deep locking groove V 1 that allows the locking pawl 30 to engage with the engaging portion U is formed on the circumference of a... A shallow locking groove V ₁ that prevents the locking pawl 30 from engaging with the engaging portion U It is composed of every _two or more pieces. Further, a support shaft 41 parallel to the rotation support shaft 32 is fixed to the locking pawl 30, and this support shaft 41 is penetrated by the ratchet pawl 28, so that both pawls 28 and 30 rotate together. .

In addition, 38 in the figure is a helical spring 3 that biases the ratchet pawl 28 and the locking pawl 30 toward engagement.
9 is a stopper for the swinging piece 26, and 40 is a leaf spring for preventing reverse rotation of the ratchet wheel 29a.

The swinging structure has the above structure, and when the number of rotations of the timing gear 25 reaches one number less than the set number of rotational displacements, the ratchet pawl 28 moves into the deep locking groove _V1. and the locking claw 30 engages with the rotating member 31;
When the timing gear 25 performs the final rotational displacement in this state, the rotary member 31 is rotated as the ratchet wheels 29a... are rotated, and the engagement pin 21 is disengaged from the cam plate 20. , the tip receiver 15a swings downward. The receiving tool 15b that has swung downward elastically returns upward when the pressure of the stem culm bundle group is released, and in conjunction with this, the engaging pin 21 engages with the cam plate 20 again. Become.

Moreover, a mechanism for changing and adjusting the set number of times of the counting mechanism 23 is incorporated in the swinging structure in order to change the number of emitted bundles per time.

That is, the three ratchet wheels 29a... have deep locking grooves _V1 ... formed on their peripheries.
The ratchet pawls 28 are configured to have different pitches, and the ratchet claws 28 can be selectively set to one of the three ratchet wheels 29a by being shifted in the axial direction with respect to the rotation support shaft 32. A sliding operating lever is fixed to the ratchet pawls 28 and capable of engaging and holding the guide frame 33 fixed to the swing arm 26. By using the lever 34 to selectively select the ratchet wheel 29a with which the ratchet pawl 28 engages, the set number of times can be changed to three stages.

As shown in FIG. 8, the conventional ratchet pawl 28 was spline-fitted to one end of a rotating shaft 32, so that both pawls 28 and 32 rotated together. However, the rotating support shaft 32 and the ratchet pawl 28 each require spline processing, resulting in a manufacturing problem that increases processing costs.

However, in the present invention, the ratchet pawl 28 and the locking pawl 30 are integrated via the support shaft 41 installed between both pawls 28 and 30, so the ratchet pawl 28 is loosely fitted onto the rotation support shaft 32 so that it can be shifted. All you have to do is
Spline processing like in conventional structures is no longer required,
Although attachment of the support shaft 41 and hole machining have increased, since each process is simple, the overall manufacturing cost has become lower.

[Brief explanation of the drawing]

The drawings show an embodiment of a binder with a stem culm bundle collecting and discharging mechanism according to the present invention, FIG. 1 is a plan view of the binder, FIG. 2 is a plan view of the stem culm bundle collecting and discharging mechanism, and FIG.
The figure is a side view of the stem culm bundle collection and release mechanism, Figure 4 is a back view of the stem culm bundle collection and release mechanism, Figure 5 is a side view showing the intermittent rocking structure just before the release operation, and Figure 6 is the intermittent rocking structure. FIG. 7 is a side view of the structure during discharge operation, FIG. 7 is a front view thereof, and FIG. 8 is a front view showing main parts of the conventional structure. 9... Binding device, 25... Timing gear, 2
6... Swinging arm, 27... Cam piece, 28... Ratchet claw, 29a... Ratchet wheel, 3
0...Latching claw, 31...Rotating member, 32...Rotating shaft, 36...Fixed shaft, 41...Spin shaft, V ₁ ...
...Latching groove.

Claims (1)

[Scope of utility model registration request] Sequentially collect the stem culm bundles released from the bundling device 9 which performs the bundling and discharging operation intermittently, and rotate the rotating member 31 for starting the discharge of collected stem culm bundles every time the bundling device 9 operates the bundling device 9 a set number of times. Stem culm bundle receiver 15
A binder stem culm bundle collecting and discharging mechanism is configured to automatically switch the binder stem culm bundle collection and discharging mechanism from a bundle receiving position to a releasing position, and the timing gear 2 of the binding device 9
5, the swinging arm 26, which swings back and forth each time the bundle is released, is loosely supported on the fixed support shaft 36. A ratchet pawl 28 loosely supports the etching wheels 29a and the rotating member 31, and is biased and engaged with one of the ratchet wheels 29a on a rotating support shaft 32 provided on the swing arm 26.
is loosely fitted to be shiftable and rotatable in the axial direction, and a locking pawl 30 that can be engaged with the rotating member 31 is fixed to the rotational support shaft 32, so that the ratchet pawl 28 and this locking pawl 30 are connected to each other. In between, a support shaft 41 is installed parallel to the rotary support shaft 32, which connects both 28 and 30 so that they can rotate together while allowing the ratchet pawl 28 to shift. A locking groove V ₁ is provided in which the depth of engagement with the ratchet pawl 28 becomes larger each time the ratchet pawl ₂₈ is sequentially fed in a certain direction. A binder stem culm bundle collecting and discharging mechanism, characterized in that the locking pawl 30, which rotates integrally with the rotary member 31, is configured to engage with a rotating member 31.